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Definition
| sum total of all the ways it utilizes the resources of its environment |
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| the place where an organism lives |
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| Interspecific competition |
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Definition
| occurs when two species attempt to utilize the same resource when there is not enough of the resource to satisfy both |
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Definition
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Definition
| consuming shared resources |
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Term
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Definition
| entire niche that a species is capable of using based on its physiological requirements and resource needs |
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Term
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Definition
| actual niche the species occupies |
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Term
| Principle of Competitive Exclusion |
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Definition
| if two species are competing for a limited resource, the species that uses the resource more efficiently will eventually eliminate the other locally |
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Term
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Definition
| species will outcompete the other without necessary amount of resources, and the second species will become extinct |
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Term
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Definition
| avoid competition by living in different portions of the habitat or by utilizing different food or other resources |
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Term
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Definition
| the form and structure of an organism |
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Definition
| the differences evident between sympatric species |
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Definition
| consuming of one organism by another |
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Term
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Definition
| thorns, spines, and prickles |
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Term
| Secondary chemical compounds |
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Definition
| most important in defending plants against herbivores |
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Term
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Definition
| simultaneous development of adaptations in two or more populations, species, or other categories that interact so closely that each is a strong selective force on the other |
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Definition
| an ecological strategy of some organisms that show that their poisonous by being bright colors |
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Term
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Definition
| coloration that blends with the surroundings and thus hides the individual from predators |
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Term
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Definition
| an organism that resembles a distasteful organism so that prey will avoid it |
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Term
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Definition
| two or more unrelated but protected species resemble one another, thus achieving a kind of group defense |
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Term
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Definition
| two or more unrelated but protected species resemble one another, thus achieving a kind of group defense |
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Term
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Definition
| : two of more kinds of organisms live together in often elaborate and more or less permanent relationships |
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Term
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Definition
| one species benefits and the other neither benefits nor is harmed |
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Term
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Definition
| both participation species benefit |
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Definition
| one species benefits but the other is harmed |
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Term
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Definition
| parasites that feed on the exterior surface of an organism |
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Term
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Definition
| insects that lay eggs on living hosts |
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Definition
| when the presence of one species effects the second species by way of interaction with a third species |
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Definition
| species that have strong effects on the compositions of communities |
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Term
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Definition
| occurs in an area where existing communities have been disturbed |
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Definition
| occurs on bare, lifeless substrate where organisms gradually move into an area and change its nature |
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