Predation

Question 1

HSS Model

Answer 1

The world is green

Question 2

Lotka-Volterra Predation Model

Answer 2

dNprey/dt=rNprey-c(functional response)NpredatorsNprey. dNpred/dt=b(numerical response)cNpredNprey-d(mortality rate)Npred

Question 3

Batesian Mimicry

Answer 3

resemblance of a palatable or harmless species to unpalatable or dangerous

Question 4

Mullerian Mimicry

Answer 4

many unpalatable or dangerous or chemically defended species share a same color pattern

Question 5

aggressive mimicry neutral population cycle

Answer 5

predator resembles prey

Question 6

numerical responses

Answer 6

change in size of a population of predators in response to change in density of its prey

Question 7

optimal foraging strategy

Answer 7

tendency of animals to harvest food efficiently, selecting food sizes or food patches that supply maximum food intake for energy expended

Question 8

marginal value theorem

Answer 8

how long should predator stay in patch

Question 9

coevolution

Answer 9

change in genetic composition of one species in response to a change in another species over time

Question 10

red queen hypothesis

Answer 10

predators and prey coevolve in a way that sustains the interaction(evolutionary arm race)

Question 11

gape limited

Answer 11

eat everything smaller than it

Question 12

Guild

Answer 12

group of species that utilize similar resources

Question 13

bottom up

Answer 13

energy from lower trophic levels influences abundances at higher trophic levels

Question 14

top down

Answer 14

predators control prey adundance

Question 15

cannabilism

Answer 15

consuming same species

Question 16

Type I Functional response

Answer 16

characteristic of passive predators such as spiders that dpend on prey happening upon their web or filter feeders.1st Chart positive straight diagonal-straight line

Question 17

Type II Functional response

Answer 17

per capita rate of predation increases in a decelerating fashion only up to a maximum rate that is attained at some high prey density. as the # of prey captured during the total time increases, the handling time increases, decreasing the time available for further searching . the result is a declining mortality rate of prey with increasing prey density. most commonly reported for predators

Question 18

Type III Functional response

Answer 18

at high prey density, functional response is similar to type II. chart is sigmoidal shape.

Question 19

search image

Answer 19

when a new prey species appears in the area, its risk of becoming selected as food by a predator is low