Symbiosis Flashcards
symbiosis
study of 2 species in close proximity to each other
symbionts
involved in symbiosis
mutualism
where both species benefit, most common, positive
horizontal transmission
where hots gets symbionts each generation, limited to where symbionts are
vertical transmission
hosts get symbionts from parents, no mutations, not limited
what do most organisms use
both
commensalism
where one benefits more but isn’t harmed, neutral
parasitism
one benefits more, negativee
ectoparasites
found outside body
endoparasites
found inside body
intracellular
inside cells
predation
controls competition
competition motives
food, space
intraspecific
competition between species
interspecific
competition from 2 different species
ways competition occurs
direct displacement (on species replaces another), pre emption (both equal but one gets to resources first), scramble competition (one is more efficient)
limiting factors of competition
space/toxins/food/population size
fundamental niche
conditions we expect animals to live in
realised niche
conditions they actually live in
