Foraging + Movement Flashcards
(15 cards)
why animals move
avoid predation, foraging, breeding, migration
foraging
fundamental process allowing indivs to gain resources to promote their survival
how does physical environment shapes processes
wind, oceanography, fisheries, anthropogenic impacts
what processes shape acquistion
resource distribution, resource type/quality, resource requirements, other foragers
how does wind impact movement
sp-specifc response (soaring birds flap less- flapping birds have greater FMR)
energetics + foraging areas (select for diff wind conditions)
how does oceanography impact movement
basin-scale productivty (upwellings, seamounts, ocean fronts)
basin-scale fronts, meso-scale fronts
how do fisheries impact movement
follow discards
what movement types are there during migration
annual migration, self-provisioning, wide-ranging movement, stopover areas
how does foraging with other of benefit
info gain, reduced energetic cost, faultative foraging
what are the costs of foraging together
inter+intraspecific comp
how do aqautic environments vary
spatial., horizontal + vertical, overtime
indivduals differ in foraging when there is
opportunities to specialise + resource comp
movement in sharks
individuality in foraging location + diet (generalists + specialists)
movement in marine mammals
high migratory route fidelity
movement in seabirds
has individual site consistency/fidelity, uses more environmental heterogenity (so more comp + increased specialisation)
