chapter 45: ecology Flashcards
what does a niche consist of
physical habitat and ecological role
fundamental niche
full range of climate conditions and food resources that permit the individuals in a species to live
realized niche
actual range of habitats occupied by species
interactions in which at least one species is harmed
competition, predation, parasitism, herbivory
antagonistic relations
Several interactions involve a winner and a loser, usually a feeder
and a feedee
competition is…
interspecific and intraspecific
In predation most animals are…
generalists, and some are specialists
Animals who are herbivores are…
either specialists or generalists
parasites are…
species-specific
competitive exclusion
two species with similar niches will clash
competitively over limiting resources, therefore one will always be
the loser and one the winner
_______ promotes species coexistence
habitat diversity
predators often exert ________ on prey populations over ecological time
top-down control
mutualisms are the product of…
a long coevolutionary
process
Places in
which biodiversity is reduced
will support ______ overall
less life
food web
feeding relationships as a flow of energy
