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Ecology

APHG CHAPTER 1

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Chapter 1 Thinking Geographically 1 An in-depth Social Science Many people have misconceptions about geography and think of the discipline as simply an exercise in memorizing place names. 2 Where we find Geography? Geography exist in the global issues receiving attention at this time things such as Population growth Terrorism Cultural diffusion. Diffusion is defined as the spread of linguistic or cultural practices or innovations within a community or from one community to another. 3 Location, Location, Location Geography's importance can also be established by looking at community issues, such as: Water supply Pollution Growth management Housing Retail Openings Closures 4 Thinking Geographically

Bio112 April 29th

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Bio 112 April 29th, 2013 More on Ecosystems Food webs -Is a branching food chain with complex trophic interactions -Including decomposes (detritevors) Energy Flow through Ecosystems -from one trophic level to the next. Primary production - are photoautotrophs, capturing energy from the sun. Energy flows from these guys through all other levels. Of course some energy will be lost at each level. -light energy converted to chemical energy by autorophs during a given time period. -Gross primary production is the total primary production. -Net primary production is GPP minus energy used by producers (respiration)-only this is available to consumers. NPP is more important then GPP. Secondary production

Bio112 April 26th

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Bio 112, April 26 2013 Transition for competition to other aspects with in populations. EVOLUTIONARY RACE TO ARMS!!!! Evolutionary Responses -Predator- Prey interactions -Defensive adaptations of prey lead to offensive adaptations of predators -coloration, speed, eye sight, its a back and forth between these populations. -Red Queen Hypothesis (Leigh Van Valen) -evolving as rapidly as they can but not going anywhere. Stay in the same positions in the food chain. -Plant- Herbivore Interactions -Passive defenses -Chemical defenses that plants have in place all the time. Toxic!!! bad taste. -Lower population, be a rare species. -be habitat colonizers, rapid growth and re-populate new areas only. -Physical defenses, such as thorns.

apes ch 12 powerpoint

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Chapter 12 Sustaining Biodiversity: The Species Approach Core Case Study: The Passenger Pigeon - Gone Forever Once the most numerous bird on earth. In 1858, Passenger Pigeon hunting became a big business. By 1900 they became extinct from over-harvest and habitat loss. Figure 11-1 SPECIES EXTINCTION Species can become extinct: Locally: A species is no longer found in an area it once inhabited but is still found elsewhere in the world. Ecologically: Occurs when so few members of a species are left they no longer play its ecological role. Globally (biologically): Species is no longer found on the earth. Global Extinction Some animals have become prematurely extinct because of human activities. Figure 11-2 Endangered and Threatened Species: Ecological Smoke Alarms

Living In The Environment 16th Edition, Chapter 4 Outline

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Chapter 4: Biodiversity and Evolution 4-1 What is biodiversity and why is it important? Biodiversity is a Crucial Part of the Earth?s Natural Capital Biological Diversity (Biodiversity) is the variety of the earth?s species. The genes they contain, the ecosystem in which they live, and the ecosystem processes such as energy flow nutrient cycling that sustain all life. Genetic Diversity enables life on earth to adapt and survive dramatic environmental changes. Ecosystem diversity are storehouses of genetic and species diversity Functional diversity is the variety of processes such as matter cycling and energy flow taking place within ecosystems. 4-2 Where Do Species Come From? Biological Evolution by Natural Selection Explains How Life Changes Over Time

Chapter 9

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background extinction During most of the 3.56 billion years that life has existed on the earth, there has been a continuous, low level of extinction of species known as background extinction. endangered species has so few individual survivors that the species could soon become extinct over all or most of its natural range (the area in which it is normally found). extinction rate expressed as a percentage or number of species that go extinct within a certain time period such as a year. HIPPCO Habitat destruction, degradation, and fragmentation; Invasive (nonnative) species; Population and resource use growth (too many people consuming too many resources); Pollution; Climate change; and Overexploitation.

Living in the Environment 16th Edition Chapter Review and Vocabulary

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Living in the Environment : Concepts, Connections and Solutions Miller and Spoolman 16th Edition Practice Questions: Chapters 1-25 2009 - 2010

chapter 1

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Chapter 1 Review - 75 multiple choice questions Key terms on pages 41-42 Maps Scale Projection Land Ordinance of 1785 Contemporary Tools GIS GPS Place Names Site Situation Mathematical Location Regions Cultural Landscape Types of Regions Spatial Association Integration of Culture Cultural Ecology Scale Globalization Space Connections TIPS: Read and take cornell notes for the entire chapter, divided by Key Issues, and you should be just fine.
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succession

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7.1 Succession Ecological succession is the directional change in the composition of species that occupy a given area through time: it involves initial colonization and establishment of pioneer plant species, followed by their replacement with other species until a relatively stable community is formed. Ecosystems are made up of all the interacting biotic (food availability, competition and predation)and abiotic (non-biological environment ? pH, temperature, rainfall and humidity)factors in a particular area within which there are a number of communities of organisms. Ecosystems constantly change, Succession is the term used to describe these changes, over time, in the species that occupy a particular area. A sere (seral stage) is the series of stages in succession.

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