3.1 Flashcards
niche
biotic and abiotic resources a species uses and when, where, and how a species uses them
realized niche
resources that are actually used
fundamental niche
resources that could potentially be used
mutualism
both species benefit
commensalism
one species benefits the other is not affected
parasitism
one is benefited the other is negatively affected
predation
one is positively affected, one is negatively; usually when a predator hunts a prey animal; relationship doesn’t last long because the prey dies immediately
herbivory
one is positively affected one is negatively affected; usually when an animal eats a plant; like predation but with plants instead of prey
facultative
two species that receive benefits from each other but can survive without each other
obligatory
two species that receive benefits from each other and cannot survive without each other
what is likely to happen if two species have overlapping niches?
there will be competition and both species will be negatively affected
what is likely to happen if two species don’t have overlapping niches?
the species will not compete as much and they will not be negatively affected by competition
How can niche partitioning increase the biodiversity of a community?
it will allow more species to coexist and not outcompete each other
What are some ways that species can partition their niches?
they can eating different places, at different times, or different foods
what’s the difference between mutualism and commensalism
mutualism benefits both while commensalism only benefits one while not affecting the other
