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Definition
| An interaction between populations that enhances fitness (survival, growth and reproduction) of one individual while reducing the fitness of the exploited individual; predation, cannibalism, herbivory, parasitism and parasitoidism |
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| Change in predator feeding rate in response to an increase in prey availability (density); cNpreyNpred. |
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Definition
| Change in the density of a predator population in response to increased prey density; b(cNpreyNpred). |
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Definition
| Cryptic coloration, flashing coloration, warning coloration (usually combined with chemical defenses), mimicry (Batesian or Mullerian), chemical defenses (toxins, digestion inhibitors), physical defenses (armor, spines, size, etc), behavioral defenses (speed, nocturnal activity, groups, etc), predator satiation. |
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| An arms race where prey stay one step ahead of the predators (evolutionarily speaking) and predators evolve right behind them. |
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| The consumption of all or part of one living organism by the other. |
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Definition
| Occurs when organisms of the same species are killed. |
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| Entire plants or plant parts are eatehn; plant may either by killed (eg, seed eaters) or have only some biomass removed (eg, grazing). |
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| Parasites live on or within their living prey (host), depending upon it for nutrition and habitat; parasites typically reduce the fitness of their host, but do not generally kill it. |
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Definition
| Insect larvae that consume their host, killing it; are functionally equivalent to predators. |
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Definition
| Colors and patterns that allow prey to blend into the background. |
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| Extremely visible color patches that are displayed when cryptic animals are disturbed and put to flight; may distract and disorient predators. |
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| Warning (Aposomatic) Coloration |
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Definition
| Bold colors and patterns that serve as a warning to potential predators. |
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Term
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Definition
| Animals living in the same habitat with inedible or dangerous species that exhibit coloration that resembles the warning coloration of the toxic species. |
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Definition
| Many inedible or dangerous species living in the same habitat share a similar color pattern. |
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| Chemicals used to different effects to prevent predation. |
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| Brought about by the presence or action of a predator. |
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| Fixed features of an organism. |
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| Behaviors by prey species aimed at avoiding detection, feeling, and warning others of the presense of predators. |
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Definition
| Timing reproduction so that most offspring are produced in a short period of time; prey are so abundant predators can only take a fraction. |
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