The presentation of the CESAB group LOLA-BMS at the 2016 french ecology conference in the FRB-CESAB session "Using a treasury of knowledge to tackle complex ecological questions." Presented by Arndt Hampe.
This study examined the relationship between seagrass coverage and invertebrate abundance on the island of South Caicos. Researchers measured seagrass coverage using transects and quadrats at six sites and recorded observed invertebrate species. The data analysis found no significant correlations between seagrass density and invertebrate abundance. While previous studies found such correlations, the researchers believe methodological issues and environmental conditions affected their results. Further research with improved methods is needed to better understand these relationships and inform plans to remove seagrass beds.
The document evaluates 5 methods for sampling benthic macroinvertebrates in desert sinkholes: an epibenthic sled, Hester-Dendy multiplate samplers, light traps, a Ponar grab, and a pump sampler. It finds that light traps captured the most taxa and individuals. H-D samplers and Ponar grabs added additional taxa, especially gastropods. Combined use of light traps, H-D samplers, and Ponar grabs is recommended to obtain a good representation of benthic invertebrates in sinkholes, detecting 84-100% of taxa in each sinkhole. Placement of H-D samplers in both littoral and profund
Pasil Mangrove Flora Species and Conservation Linksandrew ordonio
This document summarizes a study on the mangrove flora of Pasil, Philippines. It assessed the floral species composition and diversity across three sampling sites. A total of 19 true mangrove species belonging to 9 families were found. The lower sampling site had the highest species diversity at 74.65% compared to the mid and upper sites. Avicennia marina was the most dominant species across all sites. The study also described a community-based conservation initiative led by a local organization that focused on the near-threatened species Ceriops decandra. Continued assessment of the mangrove flora and fauna was recommended.
This document summarizes a study on the effects of oil spills on loggerhead sea turtle populations. It describes a stage-structured population dynamics model developed using STELLA software to model loggerhead demography under different conservation scenarios. The model included seven life stages with different survival rates, and was run for 100 years under a baseline and three conservation scenarios that increased survival in various stages. The results showed declining populations under the baseline but increasing populations when conservation strategies were applied, with the greatest increase seen when survival was increased in large juvenile and subadult stages.
Alex_Brown_MRes_thesis_compiled_21_Aug_2006Alex Brown
This document summarizes a research project investigating the distribution of small pelagic fish in Spanish Mediterranean waters. The study uses environmental modelling, essential fish habitat mapping, and geostatistics to analyze the influence of environmental factors on fish distribution. The document provides background on how abiotic factors like temperature and salinity indirectly relate to fish distribution by influencing prey availability. It also describes methods used, including general additive models to relate fish presence/absence and abundance to environmental variables, geographic information systems to map essential fish habitat, and geostatistical techniques like variograms and kriging to analyze spatial structure of fish populations and estimate total abundance. The study focuses on commercially important small pelagic fish in the region like sardine and
Dealing with heterogeneous data to improve our knowledge of biodiversity dynamics and ecosystem function: perspectives from synthesis projects: presentation by Anne-Christine Monnet for Woodiv (Origin and congruence of taxonomic, phylogenetic, functional and paleoecological diversity patterns: the model of European-Mediterranean woody plant biodiversity) at the sfécologie conference 2018.
for more information on the group: http://www.cesab.org/index.php/fr/projets-en-cours/projets-2014/123-woodiv
Diversity and species composition of mangroves species in Pilar, Siargao Isla...Innspub Net
Mangroves are considered as the most significant components of the coastal ecosystem and among the most productive and biologically complex ecosystems on the planet. Assessment of mangrove species plays a critical role in the preservation and protection of the mangroves forest. The study aimed to assess the mangrove species in Pilar, Siargao Island. The belt transect was employed with a dimension of modified 10 m x 12 m and was installed per quadrat. Eight mangrove species were identified under four families, and these are B. sexanguela, C. decandra, R. apiculata, R. mucronata, A. alba, A. marina, L. littorea, and X. granatum. One species, C. decandra is categorized by the IUCN as a near-threatened state. Results from the mangroves vegetation structure show that R. apiculata got the highest relative frequency (26.32%), density (35.46%), and dominance (55.08%) therefore; it has the highest importance value (116.85%). This further implies that R. apiculata is the most important and acclimated mangrove species in the study area. The species diversity in Pilar, Siargao Island falls under very low diversity (H’=1.63) which might be attributed to some human-related disturbances. Thus, further consideration in future planning and conservation to increase the resiliency of the mangrove ecosystem is needed.
The slides contain a summary on my research on the ''abundances and distribution of the five most preferred food species for the mountain gorilla of the Virungas''. The presentation was delivered at the University of Twente, the Faculty of Geo-Information Science and Earth Observation (ITC). It is part of a continuous follow up on the student's research - required for the successful completion of a Master of Science at ITC, NL
This study examined the relationship between seagrass coverage and invertebrate abundance on the island of South Caicos. Researchers measured seagrass coverage using transects and quadrats at six sites and recorded observed invertebrate species. The data analysis found no significant correlations between seagrass density and invertebrate abundance. While previous studies found such correlations, the researchers believe methodological issues and environmental conditions affected their results. Further research with improved methods is needed to better understand these relationships and inform plans to remove seagrass beds.
The document evaluates 5 methods for sampling benthic macroinvertebrates in desert sinkholes: an epibenthic sled, Hester-Dendy multiplate samplers, light traps, a Ponar grab, and a pump sampler. It finds that light traps captured the most taxa and individuals. H-D samplers and Ponar grabs added additional taxa, especially gastropods. Combined use of light traps, H-D samplers, and Ponar grabs is recommended to obtain a good representation of benthic invertebrates in sinkholes, detecting 84-100% of taxa in each sinkhole. Placement of H-D samplers in both littoral and profund
Pasil Mangrove Flora Species and Conservation Linksandrew ordonio
This document summarizes a study on the mangrove flora of Pasil, Philippines. It assessed the floral species composition and diversity across three sampling sites. A total of 19 true mangrove species belonging to 9 families were found. The lower sampling site had the highest species diversity at 74.65% compared to the mid and upper sites. Avicennia marina was the most dominant species across all sites. The study also described a community-based conservation initiative led by a local organization that focused on the near-threatened species Ceriops decandra. Continued assessment of the mangrove flora and fauna was recommended.
This document summarizes a study on the effects of oil spills on loggerhead sea turtle populations. It describes a stage-structured population dynamics model developed using STELLA software to model loggerhead demography under different conservation scenarios. The model included seven life stages with different survival rates, and was run for 100 years under a baseline and three conservation scenarios that increased survival in various stages. The results showed declining populations under the baseline but increasing populations when conservation strategies were applied, with the greatest increase seen when survival was increased in large juvenile and subadult stages.
Alex_Brown_MRes_thesis_compiled_21_Aug_2006Alex Brown
This document summarizes a research project investigating the distribution of small pelagic fish in Spanish Mediterranean waters. The study uses environmental modelling, essential fish habitat mapping, and geostatistics to analyze the influence of environmental factors on fish distribution. The document provides background on how abiotic factors like temperature and salinity indirectly relate to fish distribution by influencing prey availability. It also describes methods used, including general additive models to relate fish presence/absence and abundance to environmental variables, geographic information systems to map essential fish habitat, and geostatistical techniques like variograms and kriging to analyze spatial structure of fish populations and estimate total abundance. The study focuses on commercially important small pelagic fish in the region like sardine and
Dealing with heterogeneous data to improve our knowledge of biodiversity dynamics and ecosystem function: perspectives from synthesis projects: presentation by Anne-Christine Monnet for Woodiv (Origin and congruence of taxonomic, phylogenetic, functional and paleoecological diversity patterns: the model of European-Mediterranean woody plant biodiversity) at the sfécologie conference 2018.
for more information on the group: http://www.cesab.org/index.php/fr/projets-en-cours/projets-2014/123-woodiv
Diversity and species composition of mangroves species in Pilar, Siargao Isla...Innspub Net
Mangroves are considered as the most significant components of the coastal ecosystem and among the most productive and biologically complex ecosystems on the planet. Assessment of mangrove species plays a critical role in the preservation and protection of the mangroves forest. The study aimed to assess the mangrove species in Pilar, Siargao Island. The belt transect was employed with a dimension of modified 10 m x 12 m and was installed per quadrat. Eight mangrove species were identified under four families, and these are B. sexanguela, C. decandra, R. apiculata, R. mucronata, A. alba, A. marina, L. littorea, and X. granatum. One species, C. decandra is categorized by the IUCN as a near-threatened state. Results from the mangroves vegetation structure show that R. apiculata got the highest relative frequency (26.32%), density (35.46%), and dominance (55.08%) therefore; it has the highest importance value (116.85%). This further implies that R. apiculata is the most important and acclimated mangrove species in the study area. The species diversity in Pilar, Siargao Island falls under very low diversity (H’=1.63) which might be attributed to some human-related disturbances. Thus, further consideration in future planning and conservation to increase the resiliency of the mangrove ecosystem is needed.
The slides contain a summary on my research on the ''abundances and distribution of the five most preferred food species for the mountain gorilla of the Virungas''. The presentation was delivered at the University of Twente, the Faculty of Geo-Information Science and Earth Observation (ITC). It is part of a continuous follow up on the student's research - required for the successful completion of a Master of Science at ITC, NL
Lecture about Monitoring and Biodiversity Indices, with linkage to on-going CBD programs, and a special focus on species monitoring.Many examples, needs some formatting, hope still useful!
PhD confirmation - ecology of estuarine sharks & rayssharonle
This is a ppt that was used in my confirmation for candidature. It describes how I will use stable isotope and fatty acid analysis to determine what estuarine sharks and rays eat and which areas of the South Alligator River, (NT, Aus) they utilise. This will then inform environmental managers of which areas are critical to the survival of these species.
This document discusses biodiversity, including the variety of living things, ecological diversity through different habitats and species interactions, and genetic diversity within populations. It notes the benefits of biodiversity, such as ecosystem functions, services like cleaning water and air, and providing habitat for wildlife. Biodiversity also provides resources like new food sources, medicines from plants and marine organisms. However, biodiversity is threatened by extinction and population reductions due to hunting, habitat loss, pollution, climate change, and invasive species. Ways to protect biodiversity discussed include sustainable harvesting, establishing protected areas, and legislation like the Endangered Species Act.
This study examined abiotic and biotic factors in mangrove creeks on Eleuthera, Bahamas to determine ideal nursery habitats for inclusion in marine protected areas. Fish abundance and diversity were used to assess nursery quality. Larger creek mouth widths correlated with higher fish diversity but lower abundance, possibly due to increased predation. Contrary to hypotheses, prop root density did not affect nursery quality. All creeks provided similar nursery functions due to limited disturbances. Protecting these critical habitats is important for sustaining fish populations.
Presentation of Juan Jaén, membero of the Regional Committee of CSU ROLAC, on the Priority Area of Biodiversity for the #ICSUFocalPointsinLAC workshop in Universidad de Panamá March 9-10, 2015
Fundamentals of Evolution Research PosterNatasha Amaro
The Andes Mountains are home to a large diversity of hummingbird species, with at least 140 species found in the Andes out of 338 total known species. The mountain range provided geographic isolation and a variety of elevations and microclimates that allowed hummingbird populations to adapt to different environments through natural selection. This led to reproductive isolation between populations at different elevations, which drove speciation and the proliferation of new hummingbird species in the Andes.
Reptile Diversity in Mt. Matutum Protected Landscape, South Cotabato, Philipp...Innspub Net
Reptiles are highly diversewith high percentage of endemism in the Philippines. However, reptile diversity in Mindanao, the second largest island in the country,is poorly known. To determine the species richness, diversity, endemism and conservation status of reptiles, this study was conducted from August to December 2013in six sampling sites of Mt. Matutum Protected Landscape (MMPL), South Cotabato.Cruising methodwasdone in the six sampling sites of MMPL. Paleontological Statistics Software Package (PAST) version 3.06 was used to determine the biodiversity indices, similarity index, and Kruskal-Wallis test. Thirteen species of reptiles belonging to five families and 11 genera with percentage endemism of46.15% were documented. High species diversity of reptiles with more or less even distribution was recorded in MMPL. Among the sampled sites, sampling site 1, a disturbed lowland dipterocarp forest had the highest species diversityand endemism.Sphenomorphusvariegatus was the most abundant species. Tropidophoruspartelloi, the only Mindanao Island endemic species was only found in the disturbed and undisturbed montane forests. Most of the documented species were under the Least Concern status. Bray-Curtis cluster analysis showed that sites 2 and 5 had the highest similarity percentage (68%) while Kruskal-Wallis test showed no significant difference between samples in disturbedand undisturbed sites. Threats to the reptiles of MMPL were observed to be the conversion of forest to farmland and hunting thus implying the need for protection of habitats and conservation of species in MMPL.
(A) Wildlife corridors are narrow strips of land that connect larger habitat areas and allow plants and animals to move between them. They help maintain ecological processes like migration and support genetic diversity.
(B) Arguments for corridors include enhancing genetic diversity and recolonization, while arguments against include potential for disease spread and invasion by exotic species.
(C) Parameters for designing effective corridors include identifying target species and their movement needs to properly size and place the corridor.
Studies on Diversity and Seasonal Variations in Ichthyofauna of Chandrasarova...ijtsrd
The present study deals with ichthyofaunal diversity of Chandrasarovar pond of Jhalawar, Rajasthan. Total 23 species from 6 orders, 10 families and 19 genera were recorded during the present study. The range of water parameters such as temperature, pH, dissolved oxygen alkalinity and hardness were recorded and found suitable for fish production. Dominant family Cyprinidae with 12 species and 08 genera followed by Bagridae with 03 species 02 genera and other all families Claridea, Heteropneustidae, Cichilidae, Channidae, Gobiidae, Belonidae, Mastacembelidae, Poecilidae and Anguilidae contributed single species with single genera. Regarding conservation status out of 23 fish species 21 species least concern and 2 species near threaten. During month of December post monsoon highest fish diversity was found. Seasonal diversity indices such as Shannon Wiener species diversity, Pielou’s evenness, Margalef’s species richness, were calculated based on the abundance of fish species to access the ecosystem health of Chandrasarovar pond of Jhalawar. These studies will be help for the maintenance and regulation of Ichthyofauna and other aquatic ecosystem of the Chandrasarovar pond of Jhalawar, Rajasthan Arjumand Qureshi "Studies on Diversity and Seasonal Variations in Ichthyofauna of Chandrasarovar Pond of Jhalawar (Rajasthan)" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-4 , June 2021, URL: https://www.ijtsrd.compapers/ijtsrd43619.pdf Paper URL: https://www.ijtsrd.combiological-science/zoology/43619/studies-on-diversity-and-seasonal-variations-in-ichthyofauna-of-chandrasarovar-pond-of-jhalawar-rajasthan/arjumand-qureshi
New microsoft office power point presentationAnjali Unni
Biodiversity refers to genetic, species, and ecosystem variation and is highest near the equator and in tropical oceans. Biodiversity tends to cluster in hotspots and has generally increased over time but may slow in the future. The journal Biodiversity and Conservation publishes multidisciplinary research on describing, analyzing, conserving, and sustainably using biological diversity. It provides a forum for examining conflicts between development and conservation. Described species range greatly in size from microbes to giant plants and fungi, with prokaryotes exhibiting the greatest metabolic diversity, including organisms that can survive in extreme environments.
This document summarizes an internship project conducted at the NIOZ institute in the Netherlands to study predation and interspecific competition on the common mussel (Mytilus edulis) in the Dutch Wadden Sea. The project focused on measuring predation by birds and competition from other filter-feeding species in mussel beds. Fieldwork was conducted to count birds, measure mussel bed coverage, and sample the density of mussels and other filter feeders at random points within beds. Bird counts were performed from a distance before sampling mussel beds. At each sampling point, a quadrat was used to collect and identify macrofauna, and the strength of mussel attachment was measured. Preliminary results showed variation
Vegetation analysis of the pasonanca natural park, zamboanga city, philippinesAlexander Decker
This study analyzed the vegetation at three sites within the Pasonanca Natural Park in Zamboanga City, Philippines. A total of 283 individual plants from 45 species, 27 genera and 25 families were recorded across the three sites. Species diversity was found to be high at all three sites based on species composition, distribution, importance values, and diversity indices. While species evenness varied between the sites depending on the measure used, all three sites showed fairly high species evenness overall. Few species were found to be threatened, while many were not threatened or not evaluated. The study provides information that can aid local conservation efforts.
This study assessed the biodiversity of finfish within and around the Admiral Cockburn Land and Sea National Park MPA near South Caicos. Underwater visual surveys were conducted at 6 sites inside and 6 sites outside the MPA boundary. Species abundance and diversity were calculated using density scores and Shannon-Wiener indices. Results found no significant difference in diversity between sites inside and outside the MPA. This suggests the MPA was not effectively protecting biodiversity, possibly due to being established without scientific planning or lack of connectivity between protected areas. While density scores provided abundance data, Shannon-Wiener indices were needed to accurately compare diversity between sites for MPA assessment.
Monitoring of Pollution Using Density, Biomass and Diversity Indices of Macro...Prabhakar Pawar
In this study, density, biomass and diversity indices of selected macrobenthos were assessed from substations along Sheva
creek and Dharamtar creek mangrove ecosystems of Uran (Raigad), Navi Mumbai, west coast of India from April 2009 to
March 2011. A total of 86 species of macrobenthos representing 61 genera and 45 families were identified comprising of
gastropods, pelecypods, cephalopods, polychaetes, sponges, crabs, prawns and shrimps. Higher values of density, biomass and
diversity indices were recorded during pre-monsoon and post-monsoon than the monsoon. Diversity values in the study area
ranged from 0.203 to 0.332 indicating heavy pollution and the macro benthic fauna is under stress due to discharge of domestic wastes and sewage, effluents from industries, oil tanking depots and also from maritime activities of Jawaharlal Nehru Port Trust (JNPT), hectic activities of Container Freight Stations (CFS), and other port wastes. This study reveals that macrobenthic fauna from mangrove ecosystems of Uran is facing the threat due to anthropogenic stress.
Keywords:
Biomass, Community Structure, Diversity Indices, Species Composition, Uran
- The study examined the relationship between white-tailed deer browsing intensity and proximity to roads and trails at four sites on the Huyck Preserve.
- Deer browsing intensity increased with distance from roads, suggesting roads reduce browsing by increasing perceptions of predation risk. However, browsing did not differ with distance from trails.
- Foliage coverage declined with increasing distance from both roads and trails. Near roads, higher browsing levels were correlated with lower foliage coverage.
- The results indicate roads impact deer browsing behaviors and interior forest regeneration, but trails do not appear to influence deer or have negative effects on vegetation.
1) The document evaluates the management effectiveness of the National Natural Park Rosario and San Bernardo Corals marine protected area in Colombia using biological, socioeconomic, and governance indicators.
2) Biological surveys found low coral cover and fish diversity/abundance both inside and outside the MPA, suggesting limited effectiveness of current management. The reefs also showed signs of degradation.
3) Socioeconomic and governance analyses revealed low incomes for local communities, few opportunities, weak governance, and overexploitation of resources inside the MPA. This reflected low adaptive capacity to comply with conservation rules.
This study investigated the harpacticoid copepod communities associated with degradation zones of the deep-sea coral Lophelia pertusa. Over 800 harpacticoid specimens were collected from coral, sediment, and sponge samples, representing 157 species. Diversity did not significantly differ between microhabitats. The majority of diversity was attributed to differences between sampling sites. While community structures were defined for coral and sediment samples, similarity was low within samples. Certain taxa like Pseudotachidiidae were more common on sponges. Overall trends in harpacticoid composition and diversity in the coral degradation zone were difficult to assess conclusively.
C2.02: Informing Priorities for Biological and Ecosystem Observations, suppor...Blue Planet Symposium
There are increasing opportunities to expand observation of ocean biology from advances in individual sensors to development of national and global networks. To leverage these opportunities, the ocean community has defined essential variables, initially in physical oceanography. In 2013, a Biological Integration and Observation Task Team (BIO-TT) was formed under the IOOC to focus on biological essential variables for U.S. IOOS. The primary goals of the BIO-TT were a) to improve availability of observations on the existing IOOS core biological variables (defined by BIO-TT as phytoplankton species; zooplankton species and abundance; fish species and abundance), and b) to identify and prioritize additional cross-cutting federal agency biological and ecosystem observation needs.
To address these objectives the team (1) completed a survey of federal agencies for existing core variable datasets and identified needs for biological and ecosystem observations and (2) conducted an expert workshop to explore best available science of biological and ecosystem observing, and determine implementation strategies for biological and ecosystem observation needs identified from the survey. To build upon the actions and recommendations made previously by several other groups working towards the development of a global, coordinated ocean observation system, the BIO-TT Expert Working Group activities followed the guidelines developed by the Framework for Ocean Observation (2012) and the prioritization themes identified by the GOOS Biology and Ecosystems Panel (IOC 2014).
Workshop participants agreed that the highest priority is to include species and abundance of core functional groups (pelagic and benthic) not currently represented among the IOOS core variables. This presentation will summarize key results from the survey and then focus on analyses, outcomes and recommendations from the expert workshop for new and enhanced biological variables as part of IOOS.
Spatial Mapping: Diversity and Distribution of Demersal Fish in the Southern ...robert peranginangin
In the future, fisheries management must not be based on biomass measure only, but must use an integrated ecosystem approach. This study was aimed to discover the species diversity level of demersal fish resources in spatial distribution and its relation to the environment. The study was conducted in May and June 2015 by operating a trawl in the assigned stations. The spatial distribution was based on the Bray-Curtis index which divided the distribution of demersal fish resources into three clusters. Inshore sites of Kalimantan’s western waters (KLBR) was dominated by Leognathidae, inshore sites of the eastern of Riau Islands waters (KPRI) was dominated by Lutjanidae, and offshore sites of the southern of South China Sea (SSCS) was dominated by Nemipteridae. Offshore sites of the southern of South China Sea (SSCS) had a much better community stability level than that of inshore sites of Kalimantan’s western waters (KLBR) and inshore sites of the eastern of Riau Islands waters (KPRI). This study also demonstrated that environmental factors such as depth, sediment type, salinity, and temperature, affect the distribution and species diversity of demersal fish communities in the southern of South China Sea.
Agriculture, forestry and biodiversity conservationMarco Pautasso
Agriculture and biodiversity conservation, forests, urbanization, habitat fragmentation, agri-environment schemes, land use intensity, climate change, human well-being, standing and downed deadwood, United Kingdom, United States of America, Switzerland, forest view and job satisfaction,
The DISCO-WEED project aims to quantify the contribution of ecological processes like competition and dispersal to weed community assembly and structure. It also seeks to analyze how agricultural practices interact with resource levels to optimize weed control. The project has identified over 1,500 weed taxa in French and UK cultivation fields. Studies show that widespread weeds are more abundant locally and ecologically specialized to cultivated fields. Trait analyses indicate that regional frequency, local abundance, and specialization are influenced by traits like small seed size and high resource requirements. The findings can help identify problematic weed species and inform agroecological management practices that favor diverse weed assemblages with low crop impacts.
Lecture about Monitoring and Biodiversity Indices, with linkage to on-going CBD programs, and a special focus on species monitoring.Many examples, needs some formatting, hope still useful!
PhD confirmation - ecology of estuarine sharks & rayssharonle
This is a ppt that was used in my confirmation for candidature. It describes how I will use stable isotope and fatty acid analysis to determine what estuarine sharks and rays eat and which areas of the South Alligator River, (NT, Aus) they utilise. This will then inform environmental managers of which areas are critical to the survival of these species.
This document discusses biodiversity, including the variety of living things, ecological diversity through different habitats and species interactions, and genetic diversity within populations. It notes the benefits of biodiversity, such as ecosystem functions, services like cleaning water and air, and providing habitat for wildlife. Biodiversity also provides resources like new food sources, medicines from plants and marine organisms. However, biodiversity is threatened by extinction and population reductions due to hunting, habitat loss, pollution, climate change, and invasive species. Ways to protect biodiversity discussed include sustainable harvesting, establishing protected areas, and legislation like the Endangered Species Act.
This study examined abiotic and biotic factors in mangrove creeks on Eleuthera, Bahamas to determine ideal nursery habitats for inclusion in marine protected areas. Fish abundance and diversity were used to assess nursery quality. Larger creek mouth widths correlated with higher fish diversity but lower abundance, possibly due to increased predation. Contrary to hypotheses, prop root density did not affect nursery quality. All creeks provided similar nursery functions due to limited disturbances. Protecting these critical habitats is important for sustaining fish populations.
Presentation of Juan Jaén, membero of the Regional Committee of CSU ROLAC, on the Priority Area of Biodiversity for the #ICSUFocalPointsinLAC workshop in Universidad de Panamá March 9-10, 2015
Fundamentals of Evolution Research PosterNatasha Amaro
The Andes Mountains are home to a large diversity of hummingbird species, with at least 140 species found in the Andes out of 338 total known species. The mountain range provided geographic isolation and a variety of elevations and microclimates that allowed hummingbird populations to adapt to different environments through natural selection. This led to reproductive isolation between populations at different elevations, which drove speciation and the proliferation of new hummingbird species in the Andes.
Reptile Diversity in Mt. Matutum Protected Landscape, South Cotabato, Philipp...Innspub Net
Reptiles are highly diversewith high percentage of endemism in the Philippines. However, reptile diversity in Mindanao, the second largest island in the country,is poorly known. To determine the species richness, diversity, endemism and conservation status of reptiles, this study was conducted from August to December 2013in six sampling sites of Mt. Matutum Protected Landscape (MMPL), South Cotabato.Cruising methodwasdone in the six sampling sites of MMPL. Paleontological Statistics Software Package (PAST) version 3.06 was used to determine the biodiversity indices, similarity index, and Kruskal-Wallis test. Thirteen species of reptiles belonging to five families and 11 genera with percentage endemism of46.15% were documented. High species diversity of reptiles with more or less even distribution was recorded in MMPL. Among the sampled sites, sampling site 1, a disturbed lowland dipterocarp forest had the highest species diversityand endemism.Sphenomorphusvariegatus was the most abundant species. Tropidophoruspartelloi, the only Mindanao Island endemic species was only found in the disturbed and undisturbed montane forests. Most of the documented species were under the Least Concern status. Bray-Curtis cluster analysis showed that sites 2 and 5 had the highest similarity percentage (68%) while Kruskal-Wallis test showed no significant difference between samples in disturbedand undisturbed sites. Threats to the reptiles of MMPL were observed to be the conversion of forest to farmland and hunting thus implying the need for protection of habitats and conservation of species in MMPL.
(A) Wildlife corridors are narrow strips of land that connect larger habitat areas and allow plants and animals to move between them. They help maintain ecological processes like migration and support genetic diversity.
(B) Arguments for corridors include enhancing genetic diversity and recolonization, while arguments against include potential for disease spread and invasion by exotic species.
(C) Parameters for designing effective corridors include identifying target species and their movement needs to properly size and place the corridor.
Studies on Diversity and Seasonal Variations in Ichthyofauna of Chandrasarova...ijtsrd
The present study deals with ichthyofaunal diversity of Chandrasarovar pond of Jhalawar, Rajasthan. Total 23 species from 6 orders, 10 families and 19 genera were recorded during the present study. The range of water parameters such as temperature, pH, dissolved oxygen alkalinity and hardness were recorded and found suitable for fish production. Dominant family Cyprinidae with 12 species and 08 genera followed by Bagridae with 03 species 02 genera and other all families Claridea, Heteropneustidae, Cichilidae, Channidae, Gobiidae, Belonidae, Mastacembelidae, Poecilidae and Anguilidae contributed single species with single genera. Regarding conservation status out of 23 fish species 21 species least concern and 2 species near threaten. During month of December post monsoon highest fish diversity was found. Seasonal diversity indices such as Shannon Wiener species diversity, Pielou’s evenness, Margalef’s species richness, were calculated based on the abundance of fish species to access the ecosystem health of Chandrasarovar pond of Jhalawar. These studies will be help for the maintenance and regulation of Ichthyofauna and other aquatic ecosystem of the Chandrasarovar pond of Jhalawar, Rajasthan Arjumand Qureshi "Studies on Diversity and Seasonal Variations in Ichthyofauna of Chandrasarovar Pond of Jhalawar (Rajasthan)" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-4 , June 2021, URL: https://www.ijtsrd.compapers/ijtsrd43619.pdf Paper URL: https://www.ijtsrd.combiological-science/zoology/43619/studies-on-diversity-and-seasonal-variations-in-ichthyofauna-of-chandrasarovar-pond-of-jhalawar-rajasthan/arjumand-qureshi
New microsoft office power point presentationAnjali Unni
Biodiversity refers to genetic, species, and ecosystem variation and is highest near the equator and in tropical oceans. Biodiversity tends to cluster in hotspots and has generally increased over time but may slow in the future. The journal Biodiversity and Conservation publishes multidisciplinary research on describing, analyzing, conserving, and sustainably using biological diversity. It provides a forum for examining conflicts between development and conservation. Described species range greatly in size from microbes to giant plants and fungi, with prokaryotes exhibiting the greatest metabolic diversity, including organisms that can survive in extreme environments.
This document summarizes an internship project conducted at the NIOZ institute in the Netherlands to study predation and interspecific competition on the common mussel (Mytilus edulis) in the Dutch Wadden Sea. The project focused on measuring predation by birds and competition from other filter-feeding species in mussel beds. Fieldwork was conducted to count birds, measure mussel bed coverage, and sample the density of mussels and other filter feeders at random points within beds. Bird counts were performed from a distance before sampling mussel beds. At each sampling point, a quadrat was used to collect and identify macrofauna, and the strength of mussel attachment was measured. Preliminary results showed variation
Vegetation analysis of the pasonanca natural park, zamboanga city, philippinesAlexander Decker
This study analyzed the vegetation at three sites within the Pasonanca Natural Park in Zamboanga City, Philippines. A total of 283 individual plants from 45 species, 27 genera and 25 families were recorded across the three sites. Species diversity was found to be high at all three sites based on species composition, distribution, importance values, and diversity indices. While species evenness varied between the sites depending on the measure used, all three sites showed fairly high species evenness overall. Few species were found to be threatened, while many were not threatened or not evaluated. The study provides information that can aid local conservation efforts.
This study assessed the biodiversity of finfish within and around the Admiral Cockburn Land and Sea National Park MPA near South Caicos. Underwater visual surveys were conducted at 6 sites inside and 6 sites outside the MPA boundary. Species abundance and diversity were calculated using density scores and Shannon-Wiener indices. Results found no significant difference in diversity between sites inside and outside the MPA. This suggests the MPA was not effectively protecting biodiversity, possibly due to being established without scientific planning or lack of connectivity between protected areas. While density scores provided abundance data, Shannon-Wiener indices were needed to accurately compare diversity between sites for MPA assessment.
Monitoring of Pollution Using Density, Biomass and Diversity Indices of Macro...Prabhakar Pawar
In this study, density, biomass and diversity indices of selected macrobenthos were assessed from substations along Sheva
creek and Dharamtar creek mangrove ecosystems of Uran (Raigad), Navi Mumbai, west coast of India from April 2009 to
March 2011. A total of 86 species of macrobenthos representing 61 genera and 45 families were identified comprising of
gastropods, pelecypods, cephalopods, polychaetes, sponges, crabs, prawns and shrimps. Higher values of density, biomass and
diversity indices were recorded during pre-monsoon and post-monsoon than the monsoon. Diversity values in the study area
ranged from 0.203 to 0.332 indicating heavy pollution and the macro benthic fauna is under stress due to discharge of domestic wastes and sewage, effluents from industries, oil tanking depots and also from maritime activities of Jawaharlal Nehru Port Trust (JNPT), hectic activities of Container Freight Stations (CFS), and other port wastes. This study reveals that macrobenthic fauna from mangrove ecosystems of Uran is facing the threat due to anthropogenic stress.
Keywords:
Biomass, Community Structure, Diversity Indices, Species Composition, Uran
- The study examined the relationship between white-tailed deer browsing intensity and proximity to roads and trails at four sites on the Huyck Preserve.
- Deer browsing intensity increased with distance from roads, suggesting roads reduce browsing by increasing perceptions of predation risk. However, browsing did not differ with distance from trails.
- Foliage coverage declined with increasing distance from both roads and trails. Near roads, higher browsing levels were correlated with lower foliage coverage.
- The results indicate roads impact deer browsing behaviors and interior forest regeneration, but trails do not appear to influence deer or have negative effects on vegetation.
1) The document evaluates the management effectiveness of the National Natural Park Rosario and San Bernardo Corals marine protected area in Colombia using biological, socioeconomic, and governance indicators.
2) Biological surveys found low coral cover and fish diversity/abundance both inside and outside the MPA, suggesting limited effectiveness of current management. The reefs also showed signs of degradation.
3) Socioeconomic and governance analyses revealed low incomes for local communities, few opportunities, weak governance, and overexploitation of resources inside the MPA. This reflected low adaptive capacity to comply with conservation rules.
This study investigated the harpacticoid copepod communities associated with degradation zones of the deep-sea coral Lophelia pertusa. Over 800 harpacticoid specimens were collected from coral, sediment, and sponge samples, representing 157 species. Diversity did not significantly differ between microhabitats. The majority of diversity was attributed to differences between sampling sites. While community structures were defined for coral and sediment samples, similarity was low within samples. Certain taxa like Pseudotachidiidae were more common on sponges. Overall trends in harpacticoid composition and diversity in the coral degradation zone were difficult to assess conclusively.
C2.02: Informing Priorities for Biological and Ecosystem Observations, suppor...Blue Planet Symposium
There are increasing opportunities to expand observation of ocean biology from advances in individual sensors to development of national and global networks. To leverage these opportunities, the ocean community has defined essential variables, initially in physical oceanography. In 2013, a Biological Integration and Observation Task Team (BIO-TT) was formed under the IOOC to focus on biological essential variables for U.S. IOOS. The primary goals of the BIO-TT were a) to improve availability of observations on the existing IOOS core biological variables (defined by BIO-TT as phytoplankton species; zooplankton species and abundance; fish species and abundance), and b) to identify and prioritize additional cross-cutting federal agency biological and ecosystem observation needs.
To address these objectives the team (1) completed a survey of federal agencies for existing core variable datasets and identified needs for biological and ecosystem observations and (2) conducted an expert workshop to explore best available science of biological and ecosystem observing, and determine implementation strategies for biological and ecosystem observation needs identified from the survey. To build upon the actions and recommendations made previously by several other groups working towards the development of a global, coordinated ocean observation system, the BIO-TT Expert Working Group activities followed the guidelines developed by the Framework for Ocean Observation (2012) and the prioritization themes identified by the GOOS Biology and Ecosystems Panel (IOC 2014).
Workshop participants agreed that the highest priority is to include species and abundance of core functional groups (pelagic and benthic) not currently represented among the IOOS core variables. This presentation will summarize key results from the survey and then focus on analyses, outcomes and recommendations from the expert workshop for new and enhanced biological variables as part of IOOS.
Spatial Mapping: Diversity and Distribution of Demersal Fish in the Southern ...robert peranginangin
In the future, fisheries management must not be based on biomass measure only, but must use an integrated ecosystem approach. This study was aimed to discover the species diversity level of demersal fish resources in spatial distribution and its relation to the environment. The study was conducted in May and June 2015 by operating a trawl in the assigned stations. The spatial distribution was based on the Bray-Curtis index which divided the distribution of demersal fish resources into three clusters. Inshore sites of Kalimantan’s western waters (KLBR) was dominated by Leognathidae, inshore sites of the eastern of Riau Islands waters (KPRI) was dominated by Lutjanidae, and offshore sites of the southern of South China Sea (SSCS) was dominated by Nemipteridae. Offshore sites of the southern of South China Sea (SSCS) had a much better community stability level than that of inshore sites of Kalimantan’s western waters (KLBR) and inshore sites of the eastern of Riau Islands waters (KPRI). This study also demonstrated that environmental factors such as depth, sediment type, salinity, and temperature, affect the distribution and species diversity of demersal fish communities in the southern of South China Sea.
Agriculture, forestry and biodiversity conservationMarco Pautasso
Agriculture and biodiversity conservation, forests, urbanization, habitat fragmentation, agri-environment schemes, land use intensity, climate change, human well-being, standing and downed deadwood, United Kingdom, United States of America, Switzerland, forest view and job satisfaction,
The DISCO-WEED project aims to quantify the contribution of ecological processes like competition and dispersal to weed community assembly and structure. It also seeks to analyze how agricultural practices interact with resource levels to optimize weed control. The project has identified over 1,500 weed taxa in French and UK cultivation fields. Studies show that widespread weeds are more abundant locally and ecologically specialized to cultivated fields. Trait analyses indicate that regional frequency, local abundance, and specialization are influenced by traits like small seed size and high resource requirements. The findings can help identify problematic weed species and inform agroecological management practices that favor diverse weed assemblages with low crop impacts.
Sustainable tourism and biodiversity conservationMarco Pautasso
This document provides an overview of topics covered in week 7 of a course on biodiversity conservation. The main topics are sustainable tourism and biodiversity conservation. It also recaps questions and answers on various issues in biodiversity conservation, such as the location and establishment of protected areas, strategies for preserving biodiversity apart from protected areas, and the economic value of biodiversity conservation. References are provided at the end related to research on the relationship between human populations and different aspects of biodiversity.
The roles of botanic gardens in biodiversity conservationMarco Pautasso
Biodiversity conservation in botanic gardens, arboreta, living collections, biogeography, natural history, species richness, sustainable energy, National Botanic Garden of Wales, University of Cambridge Botanic Garden, Species richness as a function of year of establishment
THEME – 5 FRUIT GENETIC RESOURCES FACING INCREASING CLIMATE UNCERTAINITYICARDA
The document discusses climate change impacts on fruit genetic resources in Tunisia. It notes that over 80% of Tunisia's fruit trees are located in arid and semi-arid regions vulnerable to climate change effects like drought and increased temperatures. The National Gene Bank of Tunisia conserves genetic resources and conducts research on species like olives, dates, citrus and more. Studies find oasis agriculture highly vulnerable to predicted warming and precipitation declines. The document calls for improved conservation of landraces and local varieties to ensure sustainable management of fruit tree genetic resources facing increasing climate uncertainty.
1. The group discussed prioritizing deforestation alerts from Global Forest Watch by filtering them based on areas of high conservation importance for biodiversity, like key biodiversity areas, intact forests, and sites for endangered species.
2. They proposed three options - filtering by ecoregions, mapping sites of range rarity as a continuous layer, or allowing users to select layers like protected areas, tiger habitats, and ape sites.
3. Integrating biodiversity data into Global Forest Watch could help conservation groups and governments better target responses to deforestation alerts in the most critical areas for nature. However, challenges may include refining models and maps
Biodiversity conservation and global changeMarco Pautasso
Botanic gardens, human well-being, tree species distribution shifts, invasive species, risk management, sea-level rise, climate according to Walter & Lieth, land use patterns, carbon emissions of conservation biologists, NIMBY, topography
This document provides an introduction to biodiversity and discusses it at multiple levels - genetic, species, ecosystem, and landscape. It defines biodiversity as the variety of living organisms, including diversity within and between species. Genetic diversity refers to variation within species and between populations, and is important for plant and animal breeding. Species diversity is the number of species within an area or ecosystem. Ecosystem diversity looks at the variety of habitats and biological communities within a region. The document examines these concepts and provides examples like genetic diversity in maize and major ecosystem types around the world.
The document discusses biodiversity and conservation. It defines biodiversity as the variety of life forms at genetic, species, and ecosystem levels. It notes that biodiversity is highest in the tropics and identifies three levels - genetic, species, and ecological diversity. Major threats to biodiversity include habitat loss, overexploitation, invasive species, and co-extinctions. Strategies for conservation include both in-situ methods like protected areas and ex-situ approaches such as seed banks and zoos. International agreements aim to reduce biodiversity loss globally and nationally.
Article - Vegetation ecology of the Nooitgedacht section of Loskop Dam Nature...Sellina Nkosi
This study classified and mapped the vegetation of the Nooitgedacht section of Loskop Dam Nature Reserve in South Africa. Eleven plant communities were identified through classification of 170 vegetation plots. These communities include wetlands, riverine woodlands, grasslands, and represent both open and closed woodland areas. Species diversity was highest in plant communities 5 and 6. A vegetation map was produced showing the distribution of the plant communities across the study area.
1) The document discusses conservation efforts in the Ewe relict forest of Benin, which faces threats of habitat loss and species extinction.
2) A new approach of establishing Farmer Field Schools was used to involve local communities, teach them about the forest's biodiversity and threats, and empower them to participate in conservation actions like native tree propagation.
3) This "bottom-up" approach led to a paradigm shift where communities took ownership of conservation efforts, producing over 800 native tree seedlings to help restore the forest habitat.
Agroecology - the need for stakeholder collaborationSIANI
Presented by Pablo Tittonell at the seminar How to Feed Nine Billion within the Planet’s Boundaries - Agroecology for Food Security & Nutrition organised by the SIANI Expert group on Agriculture Transformation. Read more here: http://www.siani.se/expert-groups/agriculture-transformation-low-income-countries-under-environmental-change
Floristic Composition, Structural Analysis and Socio-economic Importance of L...IJEAB
Floristic assessment plays a crucial role in managing and conserving phytodiversity. Thisstudy tried to determine the floristic composition, woody structure and socio-economic importance of the legume flora in the commune of Mayahi. We used plot method based on systematic sampling approach to inventory legume species within the parklands in September 2012. We recorded 55 legume species belonging to 24 genera in 56 relevés. Fabaceae is the dominant family among the legume botanical families in the parklands of the commune of Mayahi. The average woody legume density is 62 individuals per hectare in the commune of Mayahi. The woody legume species of highest average density are Faidherbia albida and Piliostigma reticulatum. While the total basal area of legumes of the commune is 1.12m2 / ha in the Mayahi commune. The crown cover varies according to the vegetation types but it is higher in the Goulbi N’kaba forest reserve. Legume flora provides a myriad of benefits to the people of Mayahi. The present study recommends furtherresearch that examines the impact of human activities on the legume flora of the parklands in the commune of Mayahi.
XIII World Forestry Congress, Buenos Aires, Argentina 2009Dr. Amalesh Dhar
The document summarizes research on the biodiversity and genetic structure of English yew (Taxus baccata L.) populations in Austria. Regeneration was found to be limited by browsing and lack of light. Pole stand health varied between sites, with differences in diameter distribution. Genetic analysis found moderate genetic variation and inbreeding within populations. Monitoring, thinning, and protection from browsing were recommended to improve regeneration and conservation status.
Biodiversity of english yew (Taxus baccata L.) populations in AustriaDr. Amalesh Dhar
The document summarizes the findings of a PhD thesis on the biodiversity of English yew populations in Austria. It discusses the current ecological condition, population structure, and genetic variation of yew populations in different locations in Austria. It assessed regeneration levels, diameter distributions, stand structures, and genetic diversity. It evaluated different conservation management strategies using a population viability risk management framework to develop recommendations to improve the monitoring and conservation of yew populations in Austria.
Mechanism of human-hornet conflicts in an urban ecosystemMuna Azmy
The study examined the relationship between hornet abundance and species composition with urban greenness levels in Nagoya, Japan. Generalized linear mixed models found that normalized difference vegetation index (NDVI) values within a 1km radius best predicted hornet abundance, with higher NDVI correlating with more hornets. Analysis also found that the abundance of V. mandarinia and V. crabro species specifically increased significantly with higher NDVI values, likely due to their nesting and feeding preferences for more forested areas. The results suggest that urban green space positively impacts hornet populations.
Mechanism of human-hornet conflicts in an urban ecosystemMuna Azmy
The document examines factors that influence human-hornet conflicts in urban areas of Japan, specifically looking at data on hornet abundance and species composition in Nagoya City over time. Statistical analyses show that certain hornet species abundances are positively correlated with higher levels of urban greenness, as measured by NDVI values within a 1km radius. The study aims to understand how environmental and social characteristics may contribute to human-hornet conflicts to help address this issue.
The document discusses the importance of biodiversity loss. It begins by defining biodiversity as the variety of life on Earth, including diversity within and between species and ecosystems. It then provides several examples of why biodiversity is important. Biodiversity provides ecosystem services that contribute to human well-being like food, medicine, regulation of climate and disease. Endangered species may hold undiscovered properties for important medicines. Diverse species also perform important ecological functions such as producing oxygen and regulating air and water. Biodiversity has aesthetic value and contributes to human enjoyment of nature. The interactions between biodiversity and economics are also important to consider.
Similar to Origin and congruence of taxonomic, phylogenetic and functional diversity in the Mediterranean woody flora. (20)
Data recovery of archival data: a temporal storyAlison Specht
This presentation discusses the challenges of data preservation over centuries as technology and interest develops and changes. The case study is in three phases: (i) a project under the Conservation program of the International Biological Program (IBP) (1966-74). (ii) a project to digitise all of the survey data recorded across the continent, to establish an objective conservation status (1975-1995). (iii) recovery of the digitised data and conversion to modern, machine-readable status under the FAIR principles.
Collaboration for Environmental Evidence 2018, ParisAlison Specht
A presentation on behalf of the Foundation for Research on Biodiversity by Alison Specht on the role of analysis and synthesis centres as knowledge brokers between science and policy.
Data Challenges and Solutions in the Environmental and Eco-social Sciences. Talk in the session: Research across Disciplinary Boundaries, at the conference Global Collaboration on Data Beyond Disciplines < https://ds.rois.ac.jp/article/dsws_2020/ >, September 23-25 2020
Retrospective Analysis of Antarctic Tracking DataAlison Specht
This document describes the SCAR Retrospective Analysis of Antarctic Tracking Data (RAATD) project. The project involves analyzing over 4060 animal tracking records from 17 Antarctic species, totaling nearly 3 million location points. The goal is to identify Areas of Ecological Significance in the Southern Ocean that are important for multiple predator species and have high biodiversity of lower trophic levels. Habitat utilization models are being developed for each species to predict habitat use globally based on environmental conditions. Preliminary results from a habitat model for Southern elephant seals are shown, identifying regions of high and low predicted habitat suitability. The project aims to improve understanding of Antarctic ecosystem processes and inform spatial management decisions.
Community assembly on remote islands: does equilibrium theory apply?Alison Specht
The presentation of the CESAB group ISLANDS at the 2016 french ecology conference in the FRB-CESAB session "Using a treasury of knowledge to tackle complex ecological questions." Presented by Christophe Thébaud.
African rainforest dynamics: interactions between ecological processes and co...Alison Specht
The presentation of the CESAB group RAINBIO at the 2016 french ecology conference in the FRB-CESAB session "Using a treasury of knowledge to tackle complex ecological questions." Presented by Thomas Couvreur.
Community resistance to biological invasions : role of diversity and network ...Alison Specht
The presentation of the CESAB group LOLA-BMS at the 2016 french ecology conference in the FRB-CESAB session "Using a treasury of knowledge to tackle complex ecological questions." Presented by François Massol and Patrice David
How local-scale processes build up the large-scale response of butterflies to...Alison Specht
The presentation of the CESAB group LOLA-BMS at the 2016 french ecology conference in the FRB-CESAB session "Using a treasury of knowledge to tackle complex ecological questions." Presented by Reto Schmucki.
NETSEED : a cross-disciplinary project to analyse how small farms contribute ...Alison Specht
The presentation of the CESAB group NETSEED at the 2016 french ecology conference in the FRB-CESAB session "Using a treasury of knowledge to tackle complex ecological questions." Presented by Mathieu Thomas.
The linkages between biodiversity and the transmission of emerging infectious...Alison Specht
The document discusses the linkages between biodiversity and emerging infectious diseases. It summarizes the aims of the BIODIS/CESAB working group, which are to understand how biodiversity impacts disease spillovers and transmission in wildlife, test these relationships using different host-disease models and field studies, and understand which host traits influence disease infection and transmission. The group is made up of researchers studying various disease systems like Lyme disease, West Nile virus, and Buruli ulcer. They use mathematical modeling and have published several papers investigating whether the "dilution effect" concept, where higher diversity lowers disease risk, applies broadly. Their work examines how local diversity in host reservoirs and vectors influences disease transmission patterns.
Macroecology of species pools: insights from network theoryAlison Specht
The presentation of the CESAB group DIVGRASS at the 2016 french ecology conference in the FRB-CESAB session "Using a treasury of knowledge to tackle complex ecological questions." Presenter: Pierre Denelle
The presentation of the CESAB group gaspar at the 2016 french ecology conference in the FRB-CESAB session "Using a treasury of knowledge to tackle complex ecological questions." Presenter: Michel Kulbicki
Feedback of a couple of eco-informatic tools for soil invertebrate functional...Alison Specht
The presentation of the CESAB group BETSI at the 2016 french ecology conference in the FRB-CESAB session "Using a treasury of knowledge to tackle complex ecological questions." Presenter: Johanne Nahmani
Global patterns of insect diiversity, distribution and evolutionary distinctnessAlison Specht
The presentation of the CESAB group ACTIAS at the 2016 french ecology conference in the FRB-CESAB session "Using a treasury of knowledge to tackle complex ecological questions." Presenter: Carlos Lopez-Vaamonde
Biodiversity of intermittent rivers: analysis & synthesisAlison Specht
This document discusses synthesizing and analyzing biodiversity in intermittent rivers. It notes that intermittent rivers are prevalent globally, not just in dry climates, and are expanding due to climate change. Intermittent rivers are dynamic ecosystems that are coupled to both aquatic and terrestrial habitats. The objectives of the IRBAS group are to assemble data on biodiversity and hydrology in intermittent rivers, analyze relationships between flow patterns and biodiversity, and translate knowledge into management practices. Key results so far show increased interest in intermittent rivers but fragmented existing knowledge, and that alpha diversity declines as flow intermittence increases. A global database on intermittent river biodiversity is being developed.
Understanding properties of food webs, such as their topology or stability, and the rules underlying food web structure, has been a key issue in ecology for now more than half a century. Because obtaining data on food webs has long been a hard task by itself, this research field has progressed slowly, and its dynamical aspects have seldom been empirically considered. However, technical advances, like next generation sequencing or the possibility of retrieving past ecosystems in sediment cores, have paved the way for massive data and the analysis of time series on food webs, while new models allow better predictions about food web dynamics. Making use of such existing data sets, this working group aimed at assessing the effects of biological invasions on food web topology, the fluxes of energy and nutrients throughout the network, and its ultimate effects on biodiversity. The working group has provided an integrative view on this topic, simultaneously tackling empirical, theoretical and applied aspects of biological invasions in food webs. Obvious applications will arise both from the numerous transports of invasive species and from the reshuffling of natural communities that is expected under global change scenarios. The working group comprised theoreticians and empiricists, biological invasion specialists as well as food web and host-parasite network experts, and benefited from existing experience in the field of ecoinformatics and massive data management in ecology.
Jason Stockwell's overview of the GEISHA project (CESAB-John Wesley Powell Center) at the "Supporting Data-Intensive Freshwater and Marine Research: Integrating Informatics, Infrastructure, Databases and Open Science" session at the Association for the Sciences of Limnology and Oceanography (ASLO) meeting in Honolulu, Hawaii, in February 2017.
Data sharing archiving discovery, Bill MichenerAlison Specht
A presentation by Bill Michener (University of New Mexico and DataONE) about data sharing, archiving and discovery. It was an introduction to a session co-hosted by FRB-CESAB and CEFE (CNRS) in Montpellier.
Optimizing Post Remediation Groundwater Performance with Enhanced Microbiolog...Joshua Orris
Results of geophysics and pneumatic injection pilot tests during 2003 – 2007 yielded significant positive results for injection delivery design and contaminant mass treatment, resulting in permanent shut-down of an existing groundwater Pump & Treat system.
Accessible source areas were subsequently removed (2011) by soil excavation and treated with the placement of Emulsified Vegetable Oil EVO and zero-valent iron ZVI to accelerate treatment of impacted groundwater in overburden and weathered fractured bedrock. Post pilot test and post remediation groundwater monitoring has included analyses of CVOCs, organic fatty acids, dissolved gases and QuantArray® -Chlor to quantify key microorganisms (e.g., Dehalococcoides, Dehalobacter, etc.) and functional genes (e.g., vinyl chloride reductase, methane monooxygenase, etc.) to assess potential for reductive dechlorination and aerobic cometabolism of CVOCs.
In 2022, the first commercial application of MetaArray™ was performed at the site. MetaArray™ utilizes statistical analysis, such as principal component analysis and multivariate analysis to provide evidence that reductive dechlorination is active or even that it is slowing. This creates actionable data allowing users to save money by making important site management decisions earlier.
The results of the MetaArray™ analysis’ support vector machine (SVM) identified groundwater monitoring wells with a 80% confidence that were characterized as either Limited for Reductive Decholorination or had a High Reductive Reduction Dechlorination potential. The results of MetaArray™ will be used to further optimize the site’s post remediation monitoring program for monitored natural attenuation.
Kinetic studies on malachite green dye adsorption from aqueous solutions by A...Open Access Research Paper
Water polluted by dyestuffs compounds is a global threat to health and the environment; accordingly, we prepared a green novel sorbent chemical and Physical system from an algae, chitosan and chitosan nanoparticle and impregnated with algae with chitosan nanocomposite for the sorption of Malachite green dye from water. The algae with chitosan nanocomposite by a simple method and used as a recyclable and effective adsorbent for the removal of malachite green dye from aqueous solutions. Algae, chitosan, chitosan nanoparticle and algae with chitosan nanocomposite were characterized using different physicochemical methods. The functional groups and chemical compounds found in algae, chitosan, chitosan algae, chitosan nanoparticle, and chitosan nanoparticle with algae were identified using FTIR, SEM, and TGADTA/DTG techniques. The optimal adsorption conditions, different dosages, pH and Temperature the amount of algae with chitosan nanocomposite were determined. At optimized conditions and the batch equilibrium studies more than 99% of the dye was removed. The adsorption process data matched well kinetics showed that the reaction order for dye varied with pseudo-first order and pseudo-second order. Furthermore, the maximum adsorption capacity of the algae with chitosan nanocomposite toward malachite green dye reached as high as 15.5mg/g, respectively. Finally, multiple times reusing of algae with chitosan nanocomposite and removing dye from a real wastewater has made it a promising and attractive option for further practical applications.
Download the Latest OSHA 10 Answers PDF : oyetrade.comNarendra Jayas
Latest OSHA 10 Test Question and Answers PDF for Construction and General Industry Exam.
Download the full set of 390 MCQ type question and answers - https://www.oyetrade.com/OSHA-10-Answers-2021.php
To Help OSHA 10 trainees to pass their pre-test and post-test we have prepared set of 390 question and answers called OSHA 10 Answers in downloadable PDF format. The OSHA 10 Answers question bank is prepared by our in-house highly experienced safety professionals and trainers. The OSHA 10 Answers document consists of 390 MCQ type question and answers updated for year 2024 exams.
Evolving Lifecycles with High Resolution Site Characterization (HRSC) and 3-D...Joshua Orris
The incorporation of a 3DCSM and completion of HRSC provided a tool for enhanced, data-driven, decisions to support a change in remediation closure strategies. Currently, an approved pilot study has been obtained to shut-down the remediation systems (ISCO, P&T) and conduct a hydraulic study under non-pumping conditions. A separate micro-biological bench scale treatability study was competed that yielded positive results for an emerging innovative technology. As a result, a field pilot study has commenced with results expected in nine-twelve months. With the results of the hydraulic study, field pilot studies and an updated risk assessment leading site monitoring optimization cost lifecycle savings upwards of $15MM towards an alternatively evolved best available technology remediation closure strategy.
The modification of an existing product or the formulation of a new product to fill a newly identified market niche or customer need are both examples of product development. This study generally developed and conducted the formulation of aramang baked products enriched with malunggay conducted by the researchers. Specifically, it answered the acceptability level in terms of taste, texture, flavor, odor, and color also the overall acceptability of enriched aramang baked products. The study used the frequency distribution for evaluators to determine the acceptability of enriched aramang baked products enriched with malunggay. As per sensory evaluation conducted by the researchers, it was proven that aramang baked products enriched with malunggay was acceptable in terms of Odor, Taste, Flavor, Color, and Texture. Based on the results of sensory evaluation of enriched aramang baked products proven that three (3) treatments were all highly acceptable in terms of variable Odor, Taste, Flavor, Color and Textures conducted by the researchers.
Earth Day How has technology changed our life?
Thinkers/Inquiry • How has our ability to think and inquire helped to advance technology?
Vocabulary • Nature Deficit Disorder~ A condition that some people maintain is a spreading affliction especially affecting youth but also their adult counterparts, characterized by an excessive lack of familiarity with the outdoors and the natural world. • Precautionary Principle~ The approach whereby any possible risk associated with the introduction of a new technology is largely avoided, until a full understanding of its impact on health, environment and other areas is available.
What is technology? • Brainstorm a list of technology that you use everyday that your parents or grandparents did not have. • Compare your list with a partner.
Origin and congruence of taxonomic, phylogenetic and functional diversity in the Mediterranean woody flora.
1. Origin and congruence of taxonomic,
phylogenetic and functional diversity
in the Mediterranean woody flora
Arndt Hampe
UMR 1202 BioGeCo (INRA)
for the WOODIV consortium
2. The Mediterranean Basin:
global hotspot of plant diversity
Mittermeier et al. (2000) Nature
Montoya et al. (2007) Ecography
Number of tree species
4. Regional hotspots of plant diversity
and endemism in the Mediterranean
Médail & Quézel (1997) Ann Miss Bot Gard
5. The WOODIV project: research questions
How has woody plant biodiversity been shaped?
How do different facets of biodiversity
complement each other?
Taxonomic
FunctionalGenetic
6. Why do we focus on trees?
• 22% of total land area
• Keystone organisms
• Relevant surrogates of
biodiversity patterns
• Long evolutionary history
• Relatively well known
8. Assembling published information
Taxonomy: complete species list
Genetics: phylogeny based on
five standard molecular markers
Functional traits: near complete
database of diverse species traits
Regional floras
GenBank et al.
Floras & databases
(TRY et al.)
9. Assembling published information
Taxonomy: complete species list
Genetics: phylogeny based on
five standard molecular markers
Functional traits: near complete
database of diverse species traits
Final list: 202 spp.
Data for >150 taxa
Data for >20 traits
10. Exploiting the assembled knowledge
Taxonomy: complete species list
Genetics: phylogeny based on
five standard molecular markers
Functional traits: near complete
database of diverse species traits
Mediterranean
biogeography
Tree evolution &
macroecology
Forest dynamics &
conservation
Drivers, dynamics &
metrics of woody
plant biodiversity
11. Thank you
Members: Agathe Leriche, Juan Arroyo, Gianluigi Bacchetta,
Vincent Devictor, Aggeliki Doxa, Panayotis Dimopoulos, Bruno
Fady, Valentina Garavaglia, Joël Guiot, Arndt Hampe, Frédéric
Médail, Toni Nikolic & Beppe Vendramin
Collaborators: Cécile Albert, Francesca Bagnoli, Alex Baumel,
Marwan Cheikh Albassatneh & Frédéric Guiter
Project duration: 09/2015 – 02/018