Bio Ch. 56 - Species Interactions and Coevolution
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Created by:
evanmerryman on March 3, 2012
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25 terms
Terms | Definitions |
|---|---|
 antagonistic interactions | one species benefits and the other is harmed - predation, herbivory, parasitism, and pathogens |
| mutualism | both species benefit |
| competition | interaction in which two or more species use the same resource |
| commensalism | one species benefits, the other is apparently unaffected |
| Ammensalism | one participant in unaffected and the other is harmed |
| coevolution | adaptation in one species may lead to evolution of an adaptation in a species it interacts with |
| aposematic coloration | prey species that are toxic and advertise with warning signals life bright coloration |
| batesian mimicry | when a nontoxic species resembles a toxic species |
| Mullerian mimicry | when a number of aposematic species converge on a common color pattern |
| crypsis | camouflage, or matching the background |
| homotypy | the prey resembles something that the predator considers inedible |
| oligophagous | species that are specialists and feed on one or a few related plant taxa |
| polyphagous | species that feed on many unrelated plant species |
| microparasites | smaller than their hosts, generally live and reproduce inside the host |
| macroparasites | include ectoparasites (external parasites) reproduce outside of host and are sometimes only briefly associated with their host |
| asymmetrical interactions | mutualistic interaction where one species benefits more than the other |
| frugivores | animals that eat fruit and are important in sees dispersal |
| intraspecific competition | competition between species of the same species |
| interspecific competition | competition between individuals of different species |
| competitive exclusion | occurs when a superior competitor prevents another species from using a habitat or resource |
| interference competition | a competitor interferes with another competitor's access to a resource |
| exploitation competition | one competitor is more efficient in using a resource than another |
| guilds | groups of species that exploit the same resource but in slightly different ways |
| character displacement | individuals within a species have different behavior or morphology depending on whether they are competing with another species |
| niche | the set of physical and biological condition a species needs to survive, grow, and reproduce |
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