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Botony
Ecology
| Question | Answer |
|---|---|
| population | group of interbreeding individuals of the same species in the same area and the same time |
| communities | populations of many species living together in same area at the same time |
| ecotones | transitions between communities |
| ecosystems | all communities and their associated physical environment, including physical, chemical and biological processes |
| Intrinsic Rate | Birth-Death=rate |
| Competition | -- negative effect for both, limited resources because of environment carrying capacity is decreased |
| mutualism | both species affected in a good way, lycans defending tree for food |
| exponential growth | number of individuals added each generation increases along with total # of females |
| biotic potential | maximum population growth possibility with ideal circumstances |
| environmental resistance | environments conditions preventing biotic potential |
| exponential growth equation | (Nt+1=RNt) Nt=# of females already present R=net reproductive rate Nt+1=population size following year |
| logistic growth | enviromental resistance retards exponential growth eventually anyway |
| logistic growth equation | dN/dt=rN (K-N/K) equals % |
| carrying capacity | maximum # of species environment can support |
| r=Strategists (opportunistic) | produce large #'s, small bodies, early maturity, no care, density independent, good dispersers and colonizers, ex: knat and fruit fly |
| K=Strategists (equilibrium) | produce small #'s, large bodies, late maturity, significant care, density dependent, specialists ex:bees |
| density dependent | #influences effect (competition, predation or herbavor) |
| density independent | # doesn't influence effect (natural disasters) |
| habitat | area organism lives and reproduces |
| ecological niche | role of organism |
| fundamental niche | all conditions organism can survive |
| realized niche | set conditions organism exists in nature |
| intersepcific competition | different species utulizing resource in limited supply |
| competitive exclusion principle | no two species occupying sme niche at the same time |
| resource partitioning | decreases competition |
| predation | +- wolf eats rabbit rabbit gets negative effect |
| commensalism | lycans eating from tree and tree not giving a fuck |
| symbiosis | species living together uneffected |
| parasitism | parasite using a host to live +- |
| plant defenses | spines, tough epidermis, waxy cuticle, poisonous chemicals |
| producers | capable of photosynthesis/storing energy |
| primary conusmers | eat producers (herbavors) |
| secondary consumers | eat producers AND primary consumers |
| decomposers | break down waste materials to realse into ecosystem for reassimilation |
| food webs | determine flow of energy though diff ecosystem levels (interlocking food chaings, increased biodiversity) |
| primary succession | presence of organism altered by next and so on (Xerosere or hydrosere)(soil being formed) |
| secondary succession` | due to distrubance (plowed soil which left) |
| fire ecolgoy | natural fires started by lighting. trying to eliminate disrupts natural cycle. plays role in forest composition. species replace themselves after fire |
| Ecolgoy | study of interactions between an organism and its environment (biotic and abiotic) |
| Biotic | factors related to life (living) |
| abiotic | factors related to nonliving. Weather or environemntal factors such habitat |
| Rule of 10 | each species passes 10% of trophic level to next group |
Created by:
fenix199
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