predation Flashcards
define exploitation
interactions between populations that enhances fitness of one individual while reducing fitness of exploited individual
exploitation can affect?
distribution, abundance, and structure of prey and host populations
predator removal affects?
prey abundance
what is the red queen hypothesis?
relationship between predator/prey and parasite/host is a “contest of arms”
exploitation can reduce fitness to?
zero
(t/f) exploitation can reverse evolution
true
changing host behavior so host are more prone to predation is?
dispersal mechanism for the parasite
what are the adaptation to reduce predation?1
mimicry
chemical defense
warning coloration
immunological defense
behavioral defense
group living
aggregate
increase in prey = ?
increase in predation
increasing prey populations affect predator populations and is summarized as?
functional response of the predator
explain optimal foraging
sometimes predators select among available prey and size of prey - will always take most energy per unit time of handling and searching