Lecture 13 Flashcards
competition def
occur when organism use or seek out a common source that is in limited supply
2 types competition
resource competition
interference competition
inter specific
Lotka Volterra
resource will also decrease with inter specific competition
usually stable coexistence if inter specific competition < intra specific competition
eg.grain beetle
1 species winning/ coexistence
know resource involved& mechanism by which they compete to understand competitive interaction
different environment different competitive outcome
fundamental niche def
the ecological space occupied by a species in the absence of competitions and predation by other species
Hutchinson
n dimensional hypervolume
paradox
lab- competitive exclusion, field result- many species live together
3 explanantion for the paradox
resource are not that limiting
occupy divergent niche
competition already in the past, only end up with species adapt to competition
2 eg related to the paradox
eg.5 warbler same tree stem, use different parts of tree
record how many times each bird at different parts of tree, partition the tree
eg.Chthamalus and Balanus, barnacle