Most Famous Crab Of The Island Is Christmas Island Red Crab Gecarcoidea Natalis – Dominating Animal Species In Forest, Endemic Species Met Only On This Island. One of the impressive sights not only for Christmas Island but for whole world is yearly migration of red crabs.
The Gulf of St. Lawrence and its river and estuary constitute one of the most nutrient-rich aquatic areas in the world. The shape of the river trench and the currents and gyres in the gulf provide habitat for abundant aquatic life, including whales as far up river as Tadoussac QC. However, oil deposits beneath the Gulf offer opportunity for oil companies while drilling would pose a serious threat to life in the ecosystem should a spill occur. This research talks about the Gulfs' geology,biology and impacts if oil drilling does occur.
Credits: Emily and Patrick
Most Famous Crab Of The Island Is Christmas Island Red Crab Gecarcoidea Natalis – Dominating Animal Species In Forest, Endemic Species Met Only On This Island. One of the impressive sights not only for Christmas Island but for whole world is yearly migration of red crabs.
The Gulf of St. Lawrence and its river and estuary constitute one of the most nutrient-rich aquatic areas in the world. The shape of the river trench and the currents and gyres in the gulf provide habitat for abundant aquatic life, including whales as far up river as Tadoussac QC. However, oil deposits beneath the Gulf offer opportunity for oil companies while drilling would pose a serious threat to life in the ecosystem should a spill occur. This research talks about the Gulfs' geology,biology and impacts if oil drilling does occur.
Credits: Emily and Patrick
Predator-prey relations refer to the interactions between two species where one species is the hunted food source for the other. The organism that feeds is called the predator and the organism that is fed upon is the prey.
This was a small presentation our group did on the village of Waiqanake in Lami, Fiji. Exploring the village really opened our eyes to the lifestyle of the people in the community and the challenges they faced everyday particularly because they were so close to the sea.
Biodiversity is all forms of life and the ecosystems of which they are a part. Adelaide once had a rich variety of wildlife, now it is under serious threat today. The loss of biodiversity has been caused through European settlement developing the land for residential, agriculture and industry usage. This has led to the clearance of vegetation, fragmentation and a decline of many species.
Freshwater Pearl Mussel (Margaritifera margaritifera): An iconic specie at th...Riffat Naz
This presentation contains everything about freshwater pearl mussel or Margaritifera margaritifera, from its taxonomic hierarchy to iucn status and conservation strategies. It also includes causes which eventually led to its endangerment and role of Conservation genetics to save this specie.
Predator-prey relations refer to the interactions between two species where one species is the hunted food source for the other. The organism that feeds is called the predator and the organism that is fed upon is the prey.
This was a small presentation our group did on the village of Waiqanake in Lami, Fiji. Exploring the village really opened our eyes to the lifestyle of the people in the community and the challenges they faced everyday particularly because they were so close to the sea.
Biodiversity is all forms of life and the ecosystems of which they are a part. Adelaide once had a rich variety of wildlife, now it is under serious threat today. The loss of biodiversity has been caused through European settlement developing the land for residential, agriculture and industry usage. This has led to the clearance of vegetation, fragmentation and a decline of many species.
Freshwater Pearl Mussel (Margaritifera margaritifera): An iconic specie at th...Riffat Naz
This presentation contains everything about freshwater pearl mussel or Margaritifera margaritifera, from its taxonomic hierarchy to iucn status and conservation strategies. It also includes causes which eventually led to its endangerment and role of Conservation genetics to save this specie.
Consigue los mejores Avales para las Empresas de Trabajo Temporal (ETT). Estos avales son obligatorios presentarlos al Ministerio de Trabajo, así como para licitar a concursos publicos
Conteúdos do workshop II: "A Sociedade Portuguesa de Inovação e o seu papel no fomento do Empreendedorismo", ministrado pela Dr.ª Sara Medina, da Associação Portuguesa de Business Angels, no III Fórum Municipal da Juventude em Ponte de Lima, no dia 4 de Dezembro de 2010.
Presentación sobre el #RetoViajesTransparentes: crear una herramienta web de código abierto para transparentar y difundir los viajes de trabajo de servidores públicos.
Es un reto de innovación cívica organizado por el IFAI como parte de su política de transparencia, en colaboración con Codeando México, SocialTIC y el Instituto Mexicano para la Competitividad A.C. (IMCO).
1 de septiembre de 2014
11/2/2014
1
Community Ecology I
Stability, Resilience
WFC 10 – D. A. Kelt
A biological community is defined by the species that occupy a
particular locality and the interactions among those species.
A Primer of Conservation Biology, 3rd ed. R. B. Primack 2004
Community Ecology is the study of biological communities.
In what ways are communities organized, structured, predictable?
In what ways are they not?
Note the difference between “habitat” and “community.”
The former refers to a physical location,
whereas the latter refers to constituent species.
Many communities may appear very similar.
Coniferous Forest
near Mt. Rainier
central Oregon
King’s Canyon National Park
Sandy Desert
Sahara Desert
Simpson Desert (Australia)
Death Valley, California
Thus, there may be great variation
from point to point in these
communities
One major way in which they differ is
in composition – the particular species
that occur at a site.
Example: Burrowing
mammals
N. Amer. - Gopher
Asia - Zokor
Australia – Marsupial mole
S. Amer. – Tuco tuco
Africa – Mole rat
Ecologically similar species in different
regions with different evolutionary origins.
N. Amer. - Gopher
Asia - Zokor
Australia – Marsupial mole
S. Amer. – Tuco tuco
Africa – Mole rat
11/2/2014
2
Often true at smaller spatial scales as well . . .
Geomys
Eastern Pocket Gophers
Cratogeomys
Yellow-faced Pocket Gophers
Pappogeomys
Southern Pocket Gophers
Thomomys
Western Pocket Gophers
4 genera of North American
pocket gophers
From a conservation perspective we are interested in how
stable a community is in the face of anthropogenic abuses.
Stability – often portrayed in simple cartoon fashion as follows:
So, given all this variation, how are communities structured,
and how do they respond to disturbance?
Global Stability Local Stability
Stability may be measured by a community’s fluctuation over time.
Communities often remain stable over time.
However, they may be perturbed by some external force.
What happens then?
The American chestnut (Castanea dentata)
made up >40% of trees in mature eastern
deciduous forest.
Chestnut blight – introduced to New York City in ca. 1900
By 1950 only 1 remaining large tree in North America
What impact did this enormous loss have on
the biota of eastern North America?
Perhaps surprisingly, essentially no impact.
Eastern deciduous forests are very diverse – maples, oaks, hickories, catalpa, etc. Loss of American chestnut led to NO major changes in animal or plant communities.
Black bears may have suffered from loss of mast.
Thus, this was a relatively minor perturbation
from the perspective of the community – it
evidently shifted to a different local stable point.
Seven butterfly/moth species were specialists on
American chestnut, and have gone extinct.
Another 49 Lepidopterans simply shifted their hosts.
11/2/2014
3
Pollution – another
perturbation that can
result in ecological
deteriorat.
True or false Nearly all developed countries in the world are begin.docxnanamonkton
True or false: Nearly all developed countries in the world are beginning a demographic transition in the 21st century.
*
True or false: Human population growth has always been exponential.
*
True or false: Most developed countries have passed through a demographic transition and currently have low population growth rates.
*
True or false: A population can be clumped at one scale and uniform at another.
*
Developed countries are characterized by
*
True or false: The carrying capacity of a given geographic region for a single population can change over time.
*
True or false: The human population may continue to increase even though it surpasses carrying capacity.
*
Approximately 200 of the 300 native species of fish in Lake Victoria haven't been observed since the 1960s and are therefore probably extinct. Using the estimate of the background extinction rate, how many species of Lake Victoria fish would one expect to have naturally become extinct during the last 50 years?
*
Global climate change is likely to increase the rate of extinction worldwide. The pollutant most implicated in this problem is
*
In order to be considered extinct, a species can't be found
*
Over the past 580 million years, biodiversity has
*
The runoff of fertilizers from agricultural and residential areas can cause the aquatic algae in bodies of water to grow prolifically, resulting in a phenomenon called
*
The sudden loss of a ________ would necessarily cause the loss of most or all of a food web.
*
Cattle egrets hitch a ride on domestic cows and eat insects that are stirred up by their activity. This is an example of
*
Teosinte is a wild grass in Mexico from which corn (maize) was originally domesticated. Corn that is grown commercially is probably
*
During the 19th century, sea otters were hunted almost to the point of extinction. When the number of sea otters became very low, it was noticed that the ecosystem of kelp bed "forests" was also disappearing. It was discovered that the sea otters were predators of sea urchins, which were, in turn, predators of the kelp. When sea otters declined, the sea urchin populations grew, destroying the kelp ecosystem and the many species that depended on it. It was then understood that sea otters were ________ in this ecosystem.
*
Is a species that has few individuals at greater risk of extinction than a species with a large population size? Why or why not?
*
Earth's axis is tilted away from the sun during ________ and toward the sun during ________ in the Northern Hemisphere.
*
The temperature of a city is often warmer than the temperature in its surrounding suburbs. This is the result of an urban heat island effect. What is one reason why this effect occurs?
*
The dry deserts of Nevada are most influenced by
*
France is at almost the same latitude as Nova Scotia. Why is France's climate so much milder?
*
The amount of light received by a given unit area over time is called
*
Regions that have ________ levels of .
"Understanding the Carbon Cycle: Processes, Human Impacts, and Strategies for...MMariSelvam4
The carbon cycle is a critical component of Earth's environmental system, governing the movement and transformation of carbon through various reservoirs, including the atmosphere, oceans, soil, and living organisms. This complex cycle involves several key processes such as photosynthesis, respiration, decomposition, and carbon sequestration, each contributing to the regulation of carbon levels on the planet.
Human activities, particularly fossil fuel combustion and deforestation, have significantly altered the natural carbon cycle, leading to increased atmospheric carbon dioxide concentrations and driving climate change. Understanding the intricacies of the carbon cycle is essential for assessing the impacts of these changes and developing effective mitigation strategies.
By studying the carbon cycle, scientists can identify carbon sources and sinks, measure carbon fluxes, and predict future trends. This knowledge is crucial for crafting policies aimed at reducing carbon emissions, enhancing carbon storage, and promoting sustainable practices. The carbon cycle's interplay with climate systems, ecosystems, and human activities underscores its importance in maintaining a stable and healthy planet.
In-depth exploration of the carbon cycle reveals the delicate balance required to sustain life and the urgent need to address anthropogenic influences. Through research, education, and policy, we can work towards restoring equilibrium in the carbon cycle and ensuring a sustainable future for generations to come.
Willie Nelson Net Worth: A Journey Through Music, Movies, and Business Venturesgreendigital
Willie Nelson is a name that resonates within the world of music and entertainment. Known for his unique voice, and masterful guitar skills. and an extraordinary career spanning several decades. Nelson has become a legend in the country music scene. But, his influence extends far beyond the realm of music. with ventures in acting, writing, activism, and business. This comprehensive article delves into Willie Nelson net worth. exploring the various facets of his career that have contributed to his large fortune.
Follow us on: Pinterest
Introduction
Willie Nelson net worth is a testament to his enduring influence and success in many fields. Born on April 29, 1933, in Abbott, Texas. Nelson's journey from a humble beginning to becoming one of the most iconic figures in American music is nothing short of inspirational. His net worth, which estimated to be around $25 million as of 2024. reflects a career that is as diverse as it is prolific.
Early Life and Musical Beginnings
Humble Origins
Willie Hugh Nelson was born during the Great Depression. a time of significant economic hardship in the United States. Raised by his grandparents. Nelson found solace and inspiration in music from an early age. His grandmother taught him to play the guitar. setting the stage for what would become an illustrious career.
First Steps in Music
Nelson's initial foray into the music industry was fraught with challenges. He moved to Nashville, Tennessee, to pursue his dreams, but success did not come . Working as a songwriter, Nelson penned hits for other artists. which helped him gain a foothold in the competitive music scene. His songwriting skills contributed to his early earnings. laying the foundation for his net worth.
Rise to Stardom
Breakthrough Albums
The 1970s marked a turning point in Willie Nelson's career. His albums "Shotgun Willie" (1973), "Red Headed Stranger" (1975). and "Stardust" (1978) received critical acclaim and commercial success. These albums not only solidified his position in the country music genre. but also introduced his music to a broader audience. The success of these albums played a crucial role in boosting Willie Nelson net worth.
Iconic Songs
Willie Nelson net worth is also attributed to his extensive catalog of hit songs. Tracks like "Blue Eyes Crying in the Rain," "On the Road Again," and "Always on My Mind" have become timeless classics. These songs have not only earned Nelson large royalties but have also ensured his continued relevance in the music industry.
Acting and Film Career
Hollywood Ventures
In addition to his music career, Willie Nelson has also made a mark in Hollywood. His distinctive personality and on-screen presence have landed him roles in several films and television shows. Notable appearances include roles in "The Electric Horseman" (1979), "Honeysuckle Rose" (1980), and "Barbarosa" (1982). These acting gigs have added a significant amount to Willie Nelson net worth.
Television Appearances
Nelson's char
Characterization and the Kinetics of drying at the drying oven and with micro...Open Access Research Paper
The objective of this work is to contribute to valorization de Nephelium lappaceum by the characterization of kinetics of drying of seeds of Nephelium lappaceum. The seeds were dehydrated until a constant mass respectively in a drying oven and a microwawe oven. The temperatures and the powers of drying are respectively: 50, 60 and 70°C and 140, 280 and 420 W. The results show that the curves of drying of seeds of Nephelium lappaceum do not present a phase of constant kinetics. The coefficients of diffusion vary between 2.09.10-8 to 2.98. 10-8m-2/s in the interval of 50°C at 70°C and between 4.83×10-07 at 9.04×10-07 m-8/s for the powers going of 140 W with 420 W the relation between Arrhenius and a value of energy of activation of 16.49 kJ. mol-1 expressed the effect of the temperature on effective diffusivity.
Artificial Reefs by Kuddle Life Foundation - May 2024punit537210
Situated in Pondicherry, India, Kuddle Life Foundation is a charitable, non-profit and non-governmental organization (NGO) dedicated to improving the living standards of coastal communities and simultaneously placing a strong emphasis on the protection of marine ecosystems.
One of the key areas we work in is Artificial Reefs. This presentation captures our journey so far and our learnings. We hope you get as excited about marine conservation and artificial reefs as we are.
Please visit our website: https://kuddlelife.org
Our Instagram channel:
@kuddlelifefoundation
Our Linkedin Page:
https://www.linkedin.com/company/kuddlelifefoundation/
and write to us if you have any questions:
info@kuddlelife.org
Altered Terrain: Colonial Encroachment and Environmental Changes in Cachar, A...PriyankaKilaniya
The beginning of colonial policy in the area was signaled by the British annexation of the Cachar district in southern Assam in 1832. The region became an alluring investment opportunity for Europeans after British rule over Cachar, especially after the accidental discovery of wild tea in 1855. Within this historical context, this study explores three major stages that characterize the evolution of nature. First, it examines the distribution and growth of tea plantations, examining their size and rate of expansion. The second aspect of the study examines the consequences of land concessions, which led to the initial loss of native forests. Finally, the study investigates the increased strain on forests caused by migrant workers' demands. It also highlights the crucial role that the Forest Department plays in protecting these natural habitats from the invasion of tea planters. This study aims to analyze the intricate relationship between colonialism and the altered landscape of Cachar, Assam, by means of a thorough investigation, shedding light on the environmental, economic, and societal aspects of this historical transformation.
WRI’s brand new “Food Service Playbook for Promoting Sustainable Food Choices” gives food service operators the very latest strategies for creating dining environments that empower consumers to choose sustainable, plant-rich dishes. This research builds off our first guide for food service, now with industry experience and insights from nearly 350 academic trials.
Presented by The Global Peatlands Assessment: Mapping, Policy, and Action at GLF Peatlands 2024 - The Global Peatlands Assessment: Mapping, Policy, and Action
Climate Change All over the World .pptxsairaanwer024
Climate change refers to significant and lasting changes in the average weather patterns over periods ranging from decades to millions of years. It encompasses both global warming driven by human emissions of greenhouse gases and the resulting large-scale shifts in weather patterns. While climate change is a natural phenomenon, human activities, particularly since the Industrial Revolution, have accelerated its pace and intensity
UNDERSTANDING WHAT GREEN WASHING IS!.pdfJulietMogola
Many companies today use green washing to lure the public into thinking they are conserving the environment but in real sense they are doing more harm. There have been such several cases from very big companies here in Kenya and also globally. This ranges from various sectors from manufacturing and goes to consumer products. Educating people on greenwashing will enable people to make better choices based on their analysis and not on what they see on marketing sites.
Epcon is One of the World's leading Manufacturing Companies.EpconLP
Epcon is One of the World's leading Manufacturing Companies. With over 4000 installations worldwide, EPCON has been pioneering new techniques since 1977 that have become industry standards now. Founded in 1977, Epcon has grown from a one-man operation to a global leader in developing and manufacturing innovative air pollution control technology and industrial heating equipment.
Promoting Multilateral Cooperation for Sustainable Peatland management
Racing extension of fishes
1. Extinction Of Fishes
Racing Extinction
Page 1
Studies of the genetic structure of populations are an essential part of
fisheries management. Without them, local extinctions may go
completely unnoticed. It is important to understand the factors that
hinder the recovery of populations at both the individual and genetic
level, because there is strong evidence that local adaptation of fish is a
far more significant phenomenon.
Some 1,200 more species are likely to disappear during the 21st
century."An equal number are so rare that they will need special protection
or likely will go extinct, too."
"If biodiversitycontinuestodecline, the marine environment will not
be able to sustainour way of life. Indeed, it may not be able to sustain
our lives at all," Beaumont adds.
Already, 29% of ediblefish and seafood specieshave declined by 90%
-- a drop that means the collapse of these fisheries.
“Habitat destruction, selective hunting, invasive alien species and global
warming are all affecting natural populations of plants and animals
adversely”.
Their bottom line: Everything that lives in the ocean is important.
The diversity of ocean life is the key to its survival. The areas of the
ocean with the most different kinds of life are the healthiest.
In some cases, the loss of a complete bird species may be inevitable because
they are too sensitive to rapid changes that cannot be reversed in time to
recover, while in other cases simple changes and help from conservation
initiatives could lead to population recoveries.
2. Racing Extinction
2
Endangered species
THE BLACKFIN CISCO: A
"salmonid" fish, and hence closely
related to salmon and trout, the
Blackfin Cisco was one plentiful in
the Great Lakes, but recently
succumbed to a combination of
overfishing and predation by not
one, but three, invasive species
(the Alewife, the Rainbow Smelt,
and a genus of sea lamprey).
The Blackfin Cisco didn't
disappear from the Great Lakes all at once: the last attested Lake
Huron sighing was in 1960, the last Lake Michigan sighting in 1969,
and the last known sighting of all (near Thunder Bay, Ontario) in
2006.
THE BLUE
WALLEYES: Also known as
the Blue Pike, the Blue
Walleye was fished out of the
Great Lakes by the bucket
load from the late 19th century
to the middle 20th--the last
known specimen being
sighted in the early 1980's.
3. Racing Extinction
3
It wasn't only overfishing that led to the Blue Walleye's demise;
we can also blame the introduction of an invasive species, the
Rainbow Smelt, and industrial pollution from surrounding
factories.
THE GALAPAGOS
DAMSEL: The Galapagos
Islands are where Charles
Darwin laid much of the
groundwork for the theory
of evolution--and today,
this distant archipelago
harbors some of the
world's most endangered
species.
The Galapagos Damsel didn't fall victim to human
interference: rather, this plankton-eating fish never
recovered from a temporary increase in local water
temperatures (caused by the El Nino currents of the early
1980's) that drastically reduced plankton populations.
4. Racing Extinction
4
THE
GRAVENCHE: You might
think that Lake
Geneva, on the border
of Switzerland and
France, would enjoy
more ecological
protection than the
Great Lakes of the
capitalist-minded U.S.
This is, in fact, largely the case, but these regulations came too
late for the Gravenche, a foot-long salmon relative that was
overfished in the late 19th century, had virtually disappeared by
the early 1920's, and was last seen in 1950.
THE HARELIP
SUCKER: Considering how
colorful (not to mention
insulting) its name is,
surprisingly little is
known about the Harelip
Sucker, which was last
seen in the late 19th
century. The first specimen of this seven-inch-long fish, native
to the rushing freshwater streams of the southeastern U.S., was
5. Racing Extinction
5
caught in 1859, and only described nearly 20 years later. By
then, the Harelip Sucker was already nearly extinct, doomed by
the relentless infusion of silt into its otherwise pristine
ecosystem
THE LAKE
TITICACA ORESTIAS: If fish
can go extinct in the vast
Great Lakes, it should
come as no surprise that
they can also disappear
from Lake Titicaca in
South America, which is
an order of magnitude smaller. Also known as the Amanto, the
Lake Titicaca Orestias was a small, unprepossessing fish with
an unusually large head and a distinctive underbite, doomed in
the mid-20th century by the introduction into Lake Titicaca of
various species of trout..
THE SILVER
TROUT: Of all the fish on
this list, you might assume
the Silver Trout fell victim
to human
6. Racing Extinction
6
overconsumption; after all, who doesn't like trout for dinner? In
fact, this fish was extremely rare even when it was first
discovered; the only known specimens were native to three
small lakes in New Hampshire, and were likely the remnants of
a larger population that was dragged northward by
retreating glaciers thousands of years ago.
THE
TECOPA PUPFISH:
Not only exotic bacteria
thrive in conditions that
humans would find
hostile to life: witness the
late, lamented Tacopa
Pupfish, which swam in
the hot springs of
California's Mojave Desert (average water temperature: about
110 degrees Fahrenheit). The Pupfish could survive harsh
environmental conditions, but it couldn't survive human
encroachment:
a health fad in the 1950's and 1960'sled to the constructionof
bathhouses in the hot springs' vicinity, and the springs
themselves were artificially enlarged and diverted.
7. Racing Extinction
7
THE THICKTAIL
CHUB : Comparedto
the GreatLakes or
Lake Titicaca,the
ThicktailChub lived in
a relatively
unappealinghabitat:
the marshes,
lowlands,and weed-
choked backwaters of
California'sCentralValley.As recently as 1900,the small, minnow-
sized ThicktailChub was one of the mostcommon fish in the
Sacramento River and San FranciscoBay,and it helped to nourish
centralCalifornia's Native Americanpopulation.Sadly,this fish was
doomed both by overfishing(to service the burgeoning population of
San Francisco)and the conversionof its habitat for agriculture; the
last attested sighting was in the late 1950's.
YELLOWFIN
CUTTHROAT
TROUT: The Yellowfin
CutthroatTroutsounds like a
legend straightoutof the
8. Racing Extinction
8
American West: a 10-poundtrout,sporting brightyellow fins, that had
been spotted in the Twin Lakes of Coloradoduringthe late 19th
century.As it turns out, the Yellowfin wasn'tthe hallucinationof some
inebriatedcowboy,but an actualtroutsubspeciesthat was described
by a pair of academics in the 1891 Bulletin of the United States Fish
Commission.Unfortunately,the Yellowfin CutthroatTroutwas
doomed by the introductionof the more fecund Rainbow Troutin the
early 20th century;it's survived by its close relative,the smaller
Greenback CutthroatTrout.
Submitted by :
Siddharth Singh
Chandan Soni