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Populations and Communities
Populations and Communities

Unit 15 vocabulary
Unit 15 vocabulary

... Niche: a role an organism plays in its environment. Limiting factor: a biotic or abiotic factor needed as a resource for survival; depletion prevents growth or expansion of the population. 10) Interdependence: to depend on one another. ...
Envi Sci @ CHS
Envi Sci @ CHS

... Number of individuals We should try to prevent potential harm to an ecosystem even though we don’t understand all of the cause-and-effects • “better safe than sorry ...
04-Relationships
04-Relationships

...  Competition: When organisms attempt to use the same resource in the same place and time  Competitive exclusion principle: No two species can occupy the same niche in the same habitat at the same time. ...
Wildlife in the Modern World - ESRM 150 MIDTERM EXAM 2
Wildlife in the Modern World - ESRM 150 MIDTERM EXAM 2

... 6. Which of the following is NOT a non-consumptive use of wildlife use? a. Hunting within a mile of home b. Bird-watching around the home c. Wildlife photography in Peru d. Feeding squirrels in a local park e. None of the above 7. Which of the following is NOT a strategy that wildlife managers can ...
Slide 1
Slide 1

Practice Questions
Practice Questions

... c. Ocean photosynthesis or atmosphere to ocean ...
ECOLOGOFE PART 1
ECOLOGOFE PART 1

... 1 - An organism that lives by preying on other organisms. 2 - Competition: Over resources between different species. 3 - Groups of similar individuals who tend to mate with each other in a limited geographic area. 4 - Symbiosis where one organism benefits and the other doesn’t benefit, or suffer har ...
Natural Selection
Natural Selection

...  In small populations if an individual that carries a particular trait and by chance has more offspring, then the trait or allele can become more common (by chance, not selection)  If this happens when a small group of individuals break away from the main group and colonize a new habitat it is cal ...
Competition trade-offs
Competition trade-offs

Living Things - Madison County Schools
Living Things - Madison County Schools

... • Every organism has a variety of adaptations that are suited to its specific living conditions. These adaptations create a unique role for the organism in its ecosystem. • An organism’s role in its habitat, or how it makes its living, is called its niche. A niche includes the types of food the orga ...
Document
Document

Name Ecological Interactions Activity Student Handout GUIDED
Name Ecological Interactions Activity Student Handout GUIDED

...  What is an example of a species that humans interact with mutually?  What is an example of a species that has a parasitic relationship with humans?  What is an example of a species that humans interact with competitively? ...
Populations Ecology notes
Populations Ecology notes

... Populations Objective: A4 - Analyze how populations & communities respond to abiotic & biotic factors and recognize that long-term survival of a species is dependent on changing resources that are limited ...
A. Ecology
A. Ecology

... Ecotone – an area where different terrestrial biomes grade into each other. Fires – Many plants and animal communities adapt to these. Fires also can change species composition within biological communities. ...
File - Biology with​Mrs. Ellsworth
File - Biology with​Mrs. Ellsworth

... The lines appear to switch sides and be opposite of each other. 10) How does the wolf population affect the carrying capacity of the moose population? As the population of the prey increases then the predator population increases. As the number of predators increase then the number of prey decrease. ...
Ecological Succession
Ecological Succession

... • Each step in a food chain is called a trophic level. – At the bottom are the primary producers, usually green plants. – The tropic relationships of a community is a description of the various feeding relationships in the community, such as the diagram of the Antarctic marine food web… ...
Environmental Science
Environmental Science

... other because they require the same resources because they ____________________ __________________. When members of different species compete, we say that their __________________________________, which means that each species uses some of the same resources in a habitat. Indirect Competition • Spec ...
Population density - Zamora`s Science Zone
Population density - Zamora`s Science Zone

... Resources vary from place to place Living in groups provides protection against predators Living in groups gives some predators a better chance at ...
File
File

Chapter 5
Chapter 5

... • Researchers determined that warming and drying of the forest was most likely responsible for its extinction. • As the global climate changes, more such events can be expected. ...
Unit D Exam - WordPress.com
Unit D Exam - WordPress.com

... Article 22.2 Carrying capacity Carrying capacity refers to the maximum abundance of a species that can be sustained within a given area of habitat. When an ideal population is at equilibrium with the carrying capacity of its environment, the birth and death rates are equal, and size of the populatio ...
Chapter 8 Population Ecology
Chapter 8 Population Ecology

... Resources vary from place to place Living in groups provides protection against predators Living in groups gives some predators a better chance at ...
APES Fall Midterm (Chapters 1-5)
APES Fall Midterm (Chapters 1-5)

... 11. Name and describe the major factors that determine a population’s growth rate. 12. Describe the differences between populations of r-selected and K-selected organisms. Give an example of each. 13. A species of bird had an original range covering the entire eastern half of the United States f ...
Ecology -Communities-
Ecology -Communities-

... – A (+, -) interaction between members of the same species (Intraspecific) or between members of different species (Interspecific) for resources that are in short supply ...
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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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