Term
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Definition
| type of symbiosis that benefits both partners |
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Term
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Definition
| type of symbiosis in which one member benefits without affecting the other member |
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Term
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Definition
| struggle between organisms for the same limited resource |
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Term
| intraspecific competition |
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Definition
| competition among members of a species |
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Term
| interspecific competition |
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Definition
| competition between different species |
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Term
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Definition
| sum of activities and relationships in which a species engages to secure and use resources necessary for survival and reproduction |
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Term
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Definition
| the idea that two or more species cannot indefinitely occupy the same niche |
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Term
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Definition
| resources used in different ways by competitors allowing coexistence |
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Term
| co-evolutionary arms race |
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Definition
| prey are evolving in order to survive and predators must evolve with them in order to find food |
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Term
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Definition
| adaptation that helps an organism blend in with its surroundings |
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Term
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Definition
| bright or distinctive display that advertises an organism's defenses |
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Term
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Definition
| similar appearances of different species |
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Term
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Definition
| a parasite that completes a full life cycle within one hose and can be transmitted directly to same species |
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Term
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Definition
| parasites that are large enough to be seen with the naked eye, in contrast to microparsites |
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Term
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Definition
| organisms that spend a significant portion of their life history attached to or within a single host organism, which it ultimately kills, and often consumes in the process |
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Term
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Definition
| species which colonize previously uncolonized land, usually leading to ecological succession |
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Term
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Definition
| gradual growth of an ecosystem over a longer period of time |
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Term
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Definition
| occurs after the initial succession has been disrupted and some plants and animals still exist (after forest fire, volcano eruption, natural disaster) |
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Term
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Definition
| biological community of plants and animals which, through the process of ecological succession, has reached a steady state |
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Term
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Definition
| a species that has a disproportionate effect on its environment - effects many other organisms in an ecosystem |
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Term
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Definition
| a species that has a disproportionate effect on its environment - effects many other organisms in an ecosystem |
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Term
| drastically alter community structure (damage the food chain) |
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Definition
| what happens with removal of a keystone species |
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Term
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Definition
| pollution made up of sulfur oxides; comes mainly from coal fired powerplants |
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Term
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Definition
| pollution made up of nitrogen oxides; mainly comes from automobiles |
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Term
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Definition
| brown smog(nitrogen oxides) and gray air (sulfur oxides) produce this |
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