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ecology - McCreary County Schools
ecology - McCreary County Schools

... ◦ Exponential Growth= occurs when population growth starts out slowly and then increases rapidly as the number of reproducing individuals increase. AKA Jshaped curve. ...
ecology - Moeller
ecology - Moeller

... Dispersion patterns themselves are affected by the distribution of resources (including sunlight, nutrients, prey species, etc.) in the environment ...
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ecology powerpoint

... organisms all of the same species, which interbreed and live in the same place at the same time.  A biological community is all the organisms in a given area. ...
predation - Gulf Coast State College
predation - Gulf Coast State College

... rare plants and birds ...
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16 Coevolution-Mutualism 2009

... Two species specialized to perform positive function for each other Trophic: partners complement food/nutrients for each other 1.8 Defensive: species receive food and/or shelter in return for defending against natural enemies 14.11; pg. 298-9, 14.12 Dispersive: animal vectors move pollen or seeds in ...
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APES Chapter 8 Notes

... Competition and Predation ...
Population Dynamics Review
Population Dynamics Review

... 1. Define the following terms: habitat, niche, species, population size, crude density and ecological density. 2. Describe the three ways that a population can be distributed and give an example of each. 3. Describe the circumstances in which quadrat sampling is the most appropriate. 4. Describe the ...
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Ch. 8 Populations

... • A bank account that earns interest • Mold appearing on bread overnight • B ...
Unit 4 Ecosystems
Unit 4 Ecosystems

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1 Ecological Interactions Packet

... 1. Competition for resources and other factors limits growth and can be described by the logistic model. 2. Competition for resources, territoriality, health, predation, accumulation of wastes and other factors contribute to density dependent population regulation. Human activities impact ecosystems ...
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Population
Population

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Chapter 4: Populations and Communities

... Ecosystems and the organisms within them are constantly changing. These changes occur because living organisms within the ecosystem face varying stresses from both living and non-living factors in the environment. Living things must respond to those stresses and their response changes not only the a ...
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Basic Ecology Chapter 1

... number of species among various groups of organisms. It has been estimated that there may be between 5 and 50 million species in all; if so, many species are still to be found and described. Ecologists describe biodiversity on three levels: 1) Species diversity. All the species in a particular area, ...
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Carrying Capacity PPT

... • Competition for food, water, mate and space. • Intraspecific competition: among members of the same species • Interspecific competition: between species. ...
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... 1. Define the scope of population ecology. Individuals of one species that simultaneously occupy the same general area; they rely on the same resources and are influenced by similar environmental factors 2. Distinguish between density and dispersion. Density is the number of individuals per unit are ...
Older - Jonathan Dushoff`s
Older - Jonathan Dushoff`s

... A. Each species does better in an environment dominated by conspecifics than it does in an environment dominated by the other species B. Each species does better in an environment dominated by the other species than it does in an environment dominated by conspecifics C. One species does relatively b ...
BioBullies Glossary - Natural Biodiversity
BioBullies Glossary - Natural Biodiversity

... Organism: An organism is a single species and comes first in the Ecological Level of Organization. Pest: Defined by humans, a pest is an organism that causes damage, harm or illness to human health, property or livelihood. Population: A group of similar organisms living together in the same area (i. ...
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Ch. 50 ECOLOGY

...  Historically descriptive, currently much more ...
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Chapter 26 Notes

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Ecology Unit - Houston ISD
Ecology Unit - Houston ISD

... - omnivores = eat producers and consumers - Decomposers = break down dead organisms (= detritivores) Food Chain = sequence that links organisms and feeding relationships Food web = shows complex relationships of organisms in an ecosystem - all the food chains put together Trophic Level = represents ...
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Population Graphs: Learning Guide

... carrying capacity of 50. Draw a graph that would show this using the graph below. Label the graph components (axes, title) as well as carrying capacity and exponential growth. ...
REVIEW UNIT 10: ECOLOGY — SAMPLE QUESTIONS A. Sample
REVIEW UNIT 10: ECOLOGY — SAMPLE QUESTIONS A. Sample

... According to fossil records and recent published observations, two species of leaf-eating beetles (species A and B) have existed on an isolated island in the Pacific Ocean for over 100,000 years. In 1964 a third species of leaf-eating beetle (species C) was accidentally introduced on the island. The ...
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Storage effect

The storage effect is a coexistence mechanism proposed in the ecological theory of species coexistence, which tries to explain how such a wide variety of similar species are able to coexist within the same ecological community or guild. The storage effect was originally proposed in the 1980s to explain coexistence in diverse communities of coral reef fish, however it has since been generalized to cover a variety of ecological communities. The theory proposes one way for multiple species to coexist: in a changing environment, no species can be the best under all conditions. Instead, each species must have a unique response to varying environmental conditions, and a way of buffering against the effects of bad years. The storage effect gets its name because each population ""stores"" the gains in good years or microhabitats (patches) to help it survive population losses in bad years or patches. One strength of this theory is that, unlike most coexistence mechanisms, the storage effect can be measured and quantified, with units of per-capita growth rate (offspring per adult per generation).The storage effect can be caused by both temporal and spatial variation. The temporal storage effect (often referred to as simply ""the storage effect"") occurs when species benefit from changes in year-to-year environmental patterns, while the spatial storage effect occurs when species benefit from variation in microhabitats across a landscape.
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