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24 Cards in this Set
- Front
- Back
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methylotrophs |
aerobically feed on methanol |
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methanotrophs |
aerobicalically; also anaeraobicfeed on methane (bacteria and archaea) |
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dentrification |
anaerobic respiration 1 use no3 to break down organic material NO3 - No2 - NO - N20 (nitrous oxide) to N2
No3 to N2 same energy yield as O2 as terminal electron acceptor dissimilative nitrate reduction |
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assimilative vs dissimlative |
catabolism photosynthesis vs breakdown of complex |
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sulfate respiration |
anaerobic respiration 2 uses so4 or S instead of O2 as terminal electron acceptor byproducts = H2S (rotten eggs) much less energy than nitrate |
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fermentation |
anaerobic electrons transferred from more reduced to more oxidized ORGANIC compound very low energy glucose to pyruvate (C3) to ethanol or lactate |
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byproducts of fermentation |
hydrogen, organic acids, |
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winogradsky colmn |
structured by oxygen then sulfur take bunch of different soil and close; watch organisms develop |
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habitat vs biome |
haitat is only physical environment |
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populatino vs community |
group of individuals of one species vs interacting species |
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assemblage |
co occuring (ot necessarily interacting ) species |
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evenness vs carrying capacity |
relative abundance of species in relation to each other; highest, all equally abundant VS
theoretical max numbers given resource level |
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trophic groups |
pooling species according to their position in food web |
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gaia hypothesis |
communities as super organisms |
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guilds |
groups of organisms exploiting same resources (suspension feeders) |
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succession |
transition from one species composition to next OFTEN with complete replacement (blooms) |
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mutualism vs competition |
both organisms benefit, both organisms lose |
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amensalism |
postive or no relation one way, negative other. infauna vs suspension feeders |
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island biogeography basics |
equilibrium in richness established by balancing extinction vs immigration |
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rocky shore environment abiotic gradients |
exposure to wave action desiccation light
in tidal ponds: salinity, temp, o2, pH |
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balanus/ vs chthamauls mortality factors |
Desiccation: B between high spring/neap tides C above high tide Competition: more important as low water for both
Predation B: more important at high water than competition; most important at low water neap C:not as important as competition
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limpets |
clam like, took them out and many algae appear |
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urchins |
increase in diversity of algae ; transition from R to K but eventually lower diversity as 1 organism wins out competition for light and space |
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nucella |
dog when, important predator, drills holes into barnacles and mussels |
