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Eco Evo Exam3(c.14)
Definitions
| Term | Definition |
|---|---|
| Mesopredators | Relatively small carnivores that consume herbivores. |
| Top predators | Predators that typically consume both herbivores and mesopredators. |
| Lotka-Volterra model | A model of predator-prey interactions that incorporates oscillations in the abundances of predator and prey populations and shows predator numbers lagging behind those of their prey. |
| Equilibrium isocline | The population size of one species that causes the population of another species to be stable. Also known as Zero growth isocline. |
| Joint population trajectory | The simultaneous trajectory of predator and prey populations. |
| Joint equilibrium point | The point at which the equilibrium isoclines for predator and prey populations cross. |
| Functional response | The relationship between the density of prey and an individual predator's rate of food consumption. |
| Type I functional response | A functional response in which a predator's rate of prey consumption increases in a linear fashion with an increase in prey density until satiation occurs. |
| Type II functional response | A functional response in which a predator's rate of prey consumption begins to slow down as prey density increases and then plateaus when satiation occurs. |
| Type III functional response | A functional response in which a predator exhibits low prey consumption under low prey densities, rapid consumption under moderate prey densities, and slowing prey consumption under high prey densities. |
| Search image | A learned mental image that helps the predator locate and capture food. |
| Numerical response | A change in the number of predators through population growth or population movement due to immigration or emigration. |
| Crypsis | Camouflage that either allows an individual to match its environment or breaks up the outline of an individual to blend in better with the background environment. |
| Warning coloration | A strategy in which distastefulness evolves in association with very conspicuous colors and patterns. Also known as Aposematism. |
| Batesian mimicry | When palatable species evolve warning coloration that resembles unpalatable species. |
| Mullerian mimicry | When several unpalatable species evolve a similar pattern of warning coloration. |
| Coevolution | When two or more species affect each other's evolution. |
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BriawnaW
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