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Definition
| When a harmless species mimics a harmful species. |
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| When two or more harmful species converge on the same appearance. |
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| Number of offspring produced by an organism over its lifetime. |
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| A transitional are between two habitats. |
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| The bottom of an ocean or lake or river. |
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| The edge of a body of water from the high water mark to the shallow waters. |
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| Organisms that maintain a constant body temperature. |
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| Organisms whose body temperature varies with their environment e.g. most ectotherms. |
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| Study of how organisms relate to one another and their environments. |
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| The population of a habitat that is separated from other habitable zones by intermittent geographical isolation. |
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| Metapopulations that exist in areas uninhabitable for part of the year, but which are repopulated from a metapopulation that lasts year-round. |
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| A subset of species in a community. |
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Definition
| The aggregate of organisms in a given area. |
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| All the members of a given species in a given area. |
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Definition
| Non-living elements of an enironment, e.g. wind, water, temperature, sunlight, soil. |
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Definition
| The quantitative study of populations. |
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| The graph of population size over generations ellapsed possible from unrestricted growth. |
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Definition
| The graph of population size over generations ellapsed limited by carrying capacity. |
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Definition
| The population size of a given species that its environment can indefinitely sustain. |
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Definition
| The process of re-populating an environment after a disturbance. |
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Definition
| Transitional area between two different environments. |
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| Symbiotic relationship where only one member benefits, while the other is neither helped nor harmed. |
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Definition
| Symbiotic relationship from which both members benefit. |
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Definition
| Symbiotic relationship where one member benefits at the expense of another. |
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Definition
| A parasite that lives on the surface of its host. |
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Definition
| A parasite that lives within its host. |
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Definition
| A plant that grows on another plant, rather than anchoring its roots to the earth. |
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Definition
| When two species competing for the same resources, one will win out and eliminate the other. |
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Term
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Definition
Species dividing up space and food so as to avoid competing with each other.
e.g. lizards living in different areas of trees (emergent layer, canopy, floor) |
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Definition
| Morphological differences that eventually develop from species specializing to different niches during resource partitioning. |
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| When two species adapt along with each other, leading to high degrees of specialization e.g. milkweed developing poison to deter herbivores, and monarch butterflies adapting to store up that poison to deter carnivores. |
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| "Warning colors" that announce poisonous or dangerous animals. |
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Definition
| Trait that allows organisms to blend in to their environment. |
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| A species that a great deal of other species in an environment depend on, e.g. beavers, black spined urchins. |
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Definition
| 3 main ingredients in fertilizers (limiting nutrients for plants in the wild) |
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Term
Disturbance
Primary Succession:
Pioneer community
Secondary Succession:
more species move in
Climax community: succession finished |
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Definition
| transitional environment between marine and freshwater |
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