Keystone and Foundation Species 2011
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The document discusses the concepts of keystone and foundation species through several examples. It describes research showing that the sea star Pisaster ochraceus is a keystone species that controls populations of mussels, maintaining diversity in intertidal communities. Studies on kangaroo rats and prairie dogs also demonstrate how removing these species can transform ecosystems by reducing diversity. Kelp is provided as an example of a foundation species as a dominant primary producer.
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This document summarizes information about dung beetles and their benefits in pasture ecosystems. It discusses the different types of dung beetles, their life cycles, behaviors, and importance in manure recycling and soil health. Specifically, it notes that dung beetles improve nutrient cycling, soil structure, forage growth, and help reduce pest populations like horn flies. The document also covers research on importing new dung beetle species to support pasture ecosystems and provides tips for management practices to encourage dung beetle populations.
Bio ani
The document discusses biodiversity, which refers to genetic, species, and ecosystem diversity within a region. It notes that biodiversity has declined rapidly due to human activities like habitat loss, overexploitation, invasive species, pollution, and climate change. This is resulting in high extinction rates, with amphibians being particularly threatened. The document outlines some strategies for biodiversity conservation, including protected areas, ex situ conservation methods, and international agreements like CITES.
Growling grass frog
Year 6/7 students from Hawkesdale P12 College create slideshows about threatened species from Victoria.
Biodiversity and conservation
This document provides information about biodiversity and conservation efforts. It includes:
1) Definitions of biodiversity as the diversity of species, ecosystems, and genes on Earth.
2) Statistics on the number of known plant and animal species, with insects making up the majority.
3) Descriptions of methods for conserving biodiversity both in situ, through protected areas like biosphere reserves and national parks, and ex situ in botanical gardens and seed banks.
4) Explanations of the importance of biodiversity through its ecological services and direct economic benefits to humans. Several Indian and international policies and agreements aimed at protecting biodiversity are also outlined.
Dung Beetle Benefits in the Pasture Ecosystem
Dung beetles play an important role in pasture ecosystems by feeding on manure, using it to provide homes and food for their young, and improving soil structure, nutrient cycling, and forage growth. There are three main types of dung beetles - tumblers that roll dung into balls and bury them, tunnelers that bury balls under or near dung piles, and dwellers that live in dung piles without much digging. Dung beetles benefit pastures by reducing fly populations, breaking the life cycles of gastrointestinal parasites, and making more forage available by completely removing dung piles. Importing additional dung beetle species from other parts of the world can further improve manure recycling in US past
Wildlife Conservation.pptx
Wildlife conservation is the practice of protecting plant and animal species and their habitats. As part of the world’s ecosystems, wildlife provides balance and stability to nature’s processes. The goal of wildlife conservation is to ensure the survival of these species, and to educate people on living sustainably with other species.
Wildlife.pptx
Wildlife refers to undomesticated animal species, but has come to include all organisms that grow or live wild in an area without being introduced by humans. Wildlife was also synonymous to game: those birds and mammals that were hunted for sport. Wildlife can be found in all ecosystems.
Diversity stability debate and its relevence in pests
This document provides an overview of relative distribution of organisms and biodiversity. It discusses the different patterns of distribution organisms can have, including continuous, discontinuous, species-level, and clumped distributions. It also defines biodiversity as the variety of life on Earth, including genetic, species, and ecosystem diversity. The document outlines some of the key principles of biodiversity, like the importance of native species and connectivity between habitats.
CrazyAntPresentation2014
Crazy ants, also known as yellow crazy ants, are an invasive species that have caused major ecological damage on Christmas Island. Biologists studied the supercolonies of crazy ants which can cover 700+ hectares and have killed an estimated 10-20 million red crabs, reducing the crab population by 20-25%. Crazy ants overwhelm and outcompete native species by forming huge supercolonies with thousands of ants per square meter. Their dense populations have severely impacted the biodiversity of Christmas Island's forest ecosystem. Residents have implemented integrated pest management including baiting and spraying to control the crazy ant populations and protect the native wildlife.
Biodiversity and Monocultures
This document discusses biodiversity and monocultures. It notes that scientists have only identified a small fraction of the estimated 5-50 million living species. Biodiversity, or the variety of life in an area, is often measured by species richness which is highest in rainforests and lower in places like deciduous forests. However, human activity like deforestation is destroying habitats and increasing extinction rates far beyond natural levels. Engineered ecosystems like farms use monocultures of non-native species which have lower diversity and require intensive management compared to natural ecosystems.
6th Grade Chapter 5
This document provides information about diversity and adaptations among living things on Earth. It discusses how tropical rainforests have the highest biodiversity due to abundant resources. Adaptations allow organisms to survive in their environments, like camouflage helping animals hide from predators. Natural selection leads to traits that aid survival and reproduction in a given environment over generations. New species can form when populations become isolated and develop unique adaptations.
Non-Native Specie House Mouse3a). The house mouse is a native r.docx
Non-Native Specie: House Mouse
3a). The house mouse is a native rodent from Eurasia. They were introduced worldwide through the human association. The first country that introduced the house mouse to the United States was Western Europe. In Southern California we don't have a high population of house mouse but the small amount that we do came from Asia.
3B). This specie does have a colonized habitat. They like to colonize in homes, stores granaries, barns, and feed houses. They like to colonize in humans homes because they eat any type of human food but they are mainly on the look out for cereals and grains. when they have to set up a nest they go out to the wild specially on greenery areas and fields. The House mouse don't have loss of natives since they aren't aggressive species since they habitat in large territories. The male house mousse get aggressive male to male because they like to protect their territories. when female mouse are expecting they get aggressive with female mousses when they are out looking for food.
3C). yes house mouse to have resources because they are on the look out for food so that means their resources are homes mainly because they will always find food. since they are nocturnal specie they can inhibit in close places.
3D). there isn't much of a bad impact for the native species since they mainly inhibit in hidden territories. They like to nest out in the wild but they have their own way of going in and out of their territory to prevent from being invaded by others.
http://www.britannica.com/EBchecked/topic/273137/house-mouse (Links to an external site.)
http://www.columbia.edu/itc/cerc/danoff-burg/invasion_bio/inv_spp_summ/Mus_musculus.html (Links to an external site.)
http://en.wikipedia.org/wiki/House_mouse (Links to an external site.)
Running Head: COTTONTAIL RABBIT
COTTONTAIL RABBIT 2
Cottontail Rabbit
Chenao Jiang
09/13/2014
Native species refers to animal or plant species thriving in the ecology they evolved from, where exotic species refers to plant or animal species living outside their ecological zone, which existence in the present ecology is as a result of human activity. Ecology on the other hand refers to interactions between the living organisms and their environment. This means that, there is usually a change in interaction when a new species is introduced in a new ecological system. The change in interaction affects both the introduced species and the indigenous species. The term exotic species culminates from European exploration, colonization and settlement outside their continent. They carried with them plants and animals originally thriving in their original homeland to their new settlement areas.
This paper focuses on animal species that can be found from Canada to South America and, in the United States, from the East Coast to the Great Plains and New England. Cottontail r.
AP Biology - Charles Darwin
This document summarizes key aspects of Charles Darwin's theory of evolution by natural selection, including:
1. Darwin observed variation among individuals in populations and noticed that some variations provided advantages in survival and reproduction.
2. Over many generations, advantageous traits became more common in populations as less-fit individuals were less likely to survive and reproduce.
3. This led to the emergence of new species that were better adapted to their local environments through natural selection of heritable traits.
4. Darwin's observations of finches on the Galapagos Islands, which had adapted to different food sources and developed distinct beak variations, provided strong evidence supporting his theory.
Similar to Keystone and Foundation Species 2011 (20)
Diversity stability debate and its relevence in pests
Diversity stability debate and its relevence in pests
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More from Derrick Willard
Learning Walks: Trail Hikes in Pedagography
My presentation with Bo Adams, Chief Learning & Innovation Officer, Mount Vernon Presbyterian School at the 2018 Southern Association of Independent Schools Annual Conference.
Description
So often tales from students, parents, and colleagues establish legend and lore about our classroom teachers, providing an incomplete picture of the landscape of teaching and learning in our schools. How might we accurately view that landscape ourselves and, with others, construct and understand a truer map of our pedagogical system? Learning walks are a means to "hike the pedagogical topography” in schools while leveraging simple tech tools to better map that landscape.
Possibilities to Practices II
This document summarizes Derrick Willard's experience integrating iPads and social media into science instruction at Providence Day School in Charlotte, North Carolina. It describes how he has used digital tools like collaborative blogs, digital notebooks, note-taking apps, and formative assessment tools to move from a paper-based to a more paperless approach across various science courses from tropical ecology to AP Environmental Science to Science 8. The goal has been to promote creation, collaboration, and moving beyond just substituting digital tools for paper-based ones to truly transforming instruction using the SAMR model of technology integration.
Planning for Charlotte's Future
This is the slide deck accompanying the presentation by urban planner Garet Johnson in our AP Environmental Science class on 1/11/2013.
Succession Slides 2012
This document discusses ecological succession, including primary and secondary succession. It provides examples of primary succession on new landscapes like volcanic islands or glacial retreat. Secondary succession is examined using a case study of an old field recovering from agriculture. The document also discusses how disturbances can impact succession, creating ecotones and edge effects. The intermediate disturbance hypothesis is presented, suggesting peak diversity at moderate disturbance levels. Island biogeography theories are summarized, relating them to habitat fragmentation. The solution of wildlife corridors is proposed to address fragmentation effects.
Possibilities to Practices
Derrick Willard and Matt Scully from Providence Day School in Charlotte, North Carolina discuss how the iPad is changing science instruction at their school. They implemented iPads in various science courses from tropical ecology to AP Environmental Science. This allowed them to go paperless, use digital tools for collaboration and projects, access content on demand, and use formative assessment apps. They found the iPad helped promote productivity, note taking, projects presented on Apple TV, digital lab notebooks, and collaborative blogs. The iPad is helping bring 21st century skills like digital learning to the science classroom.
Species interactions
Presentation on species interactions that determine a species' niche and impact population dynamics. Class notes from November 5th, 2012.
Mining Practices 2012
This document discusses coal mining practices and their environmental impacts. It begins by explaining that coal and other minerals are mined to produce energy and materials like steel. Several mining techniques are described, including surface mining methods like mountaintop removal and subsurface techniques like longwall mining. The document notes that while mining is important, it can cause issues like water and air pollution, subsidence, and damage to landscapes. Laws like the Surface Mining Control and Reclamation Act were passed to regulate impacts and require cleanup, but mining continues to significantly alter environments.
Charlotte’s Future: Growth and the Environment
This is the slide deck accompanying the presentation by urban planner Garet Johnson in our AP Environmental Science class on 1/13/2012.
Species interactions
This document discusses different types of species interactions including competition, predation, parasitism, commensalism, and mutualism. It provides examples of each type of interaction and how species may coevolve or partition resources in response to competition or predation. Species must adapt to interactions, migrate to avoid negative interactions, or may go extinct if unable to adapt or migrate in response to competition or predation.
Hazardous wastes
1. Hazardous waste landfills are designed with multiple layers to prevent contamination, including compacted waste, clay and plastic linings, leachate collection systems, and groundwater monitoring wells.
2. Common hazardous wastes include cleaning products, paints, pesticides, batteries, motor oil and antifreeze which should not be thrown in the trash or poured down drains but disposed of properly.
3. Transitioning to a low-waste society requires reducing and reusing materials to minimize pollution, following principles like industrial ecology that mimic natural cycles.
Examining MSW
This document discusses municipal solid waste (MSW) in the United States and Mecklenburg County, North Carolina from 1997-2009. It notes that most MSW in the US comes from mining, oil and gas, and agriculture, while municipal waste makes up a small percentage. It also outlines current practices for dealing with MSW, including landfilling, recycling, and incineration. Barriers to increasing recycling rates are discussed, such as low environmental costs and subsidies that favor virgin materials over recycled materials. Potential solutions proposed include taxing resource extraction and requiring government agencies to purchase more recyclables.
Charlotte's Future
A presentation by Garet Johnson of the Charlotte-Mecklenburg Planning Department to our AP Environmental Science Class at Providence Day School on 1/6/2011.
NCAIS Presentation Nov 2010
Slide deck for presentation on using social media to extend the science classroom given at the North Carolina Association of Independent Schools Conference on November 5, 2010.
NCSTA Presentation Nov 2010
Slide deck for a presentation on an integrated math/science unit given at the North Carolina Science Teachers Professional Development Institute on November 12, 2010.
Species interactions
This document discusses different types of species interactions including competition, predation, parasitism, commensalism, and mutualism. It provides examples of each type of interaction such as the competitive exclusion of grey squirrels outcompeting red squirrels in Britain. Species may coevolve due to competitive interactions, developing strategies like resource partitioning to coexist. Predator-prey relationships can drive coevolution through evolutionary arms races. Commensal and mutualistic interactions provide benefits to one or both species involved.
Using ClustrMaps
This document describes how a teacher used ClustrMaps to visualize the geographic locations of visitors to his class blog over 10 months. The blog gained over 1600 visitors from countries all around the world, including places in North America, Europe, Asia, Africa, South America, and the Pacific. The map showed the expanding international audience for the class blog over time.
Biomass energy
Presentation to my APES students on types of biofuels (solid, liquid, gas) using mostly my own photos.
Mining Practices & Impacts
The document discusses various mining techniques and their environmental impacts. It describes how minerals are identified and land is acquired for mining under the 1872 Mining Law. Surface mining techniques like open-pit, strip, contour, and mountaintop removal mining are outlined. Subsurface mining techniques like room-and-pillar and longwall mining are also summarized. The document discusses the impacts of mining such as scarring of land, erosion, subsidence, water and air pollution from acid mine drainage and slurry pond spills. It provides an example of reclamation at an abandoned coal mine in Pennsylvania.
Examining MSW
The document discusses waste management statistics from the United States and Mecklenburg County, North Carolina from 1997-2008. It notes that municipal solid waste (MSW) makes up a small percentage of total waste generated annually in the US. Most MSW is disposed of in landfills, though recycling rates have increased since the 1980s. Barriers to higher recycling rates include a lack of incentives to use recycled materials and convenience of disposal options.
Willard Sparking Innovation
This is my "ignite" format (20 slide/15 sec slide) slide deck from my presentation at NCAIS Innovate Conference on March 11, 2010 at Cary Academy. No Audio, but presentation should be on YouTube Channel soon.
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Syllabus
Chapter-1
Introduction to objective, scope and outcome the subject
Chapter 2
Introduction: Scope and Specialization of Civil Engineering, Role of civil Engineer in Society, Impact of infrastructural development on economy of country.
Chapter 3
Surveying: Object Principles & Types of Surveying; Site Plans, Plans & Maps; Scales & Unit of different Measurements.
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1. Palancharmy, Basic Civil Engineering, McGraw Hill publishers.
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- 1. Keystone or Foundation Species?
- 3. Dr. Robert T. Paine’s Work (a) The sea star Pisaster ochraceous feeds preferentially on mussels but will consume other invertebrates. With Pisaster (control) Without Pisaster (experimental) Number of species present 0 5 10 15 20 1963 ´64 ´65 ´66 ´67 ´68 ´69 ´70 ´71 ´72 ´73 (b) When Pisaster was removed from an intertidal zone, mussels eventually took over the rock face and eliminated most other invertebrates and algae. In a control area from which Pisaster was not removed, there was little change in species diversity.