Ecology: Exam #3 - predation

true predators

kill prey immediately after attack

consume many prey over lifetime

herbivores/grazers

typically don’t kill victims

only partially consume organisms

consume from several victims over life

parasites

don’t kill immediately

living intimately with victim and consume part

attack one or few prey per lifetime

parasitoids

eventually kill prey

usually only one prey item per lifetime

often used for bio-control

competition

harm to both species involved

amensalism

one species unaffected, one harmed

predation/parasitism

one species benefitted, one species harmed

mutualism

both species benefit

functional response

effect of prey abundance on predator consumption