lect 34 - lect 34 tiles are an unconttrollled variable HP...

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lect 34 tiles are an unconttrollled variable HP B- can food limitations be related to abiotic factors? HP - lives 1 yr. in spring (adults lay eggs), fall (many small larvae) winter and early spring (many die from floods), early springs (pupae), spring (adults) - during wet winters, tehre is high flow (floods) and consequently high mortality. - during dry winters there is low flow, and less flow-induced mortality - during drought yrs, there a ver low flow- induced mortality, consequently very little mortality. high densities. Consequences of diff. amnt of annual flow to HP Populations. - wet - low densities dry - higher densities drought - extremely high densities. females are smaller in size- less eggs - reduction in number of offspring that reduces fitness. abiotic factors are so powerful that it can reduce fitness if override the organism food relation. abiotic factors; rainfall water light - what we see when open canopy, even in shaded area abiotic environment- has to be favorable for organisms to have interactions. abiotic factors - can affect densities. competition and fitness
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This note was uploaded on 05/10/2010 for the course BIO 1B taught by Professor Carlson,mischel,power during the Spring '07 term at University of California, Berkeley.

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lect 34 - lect 34 tiles are an unconttrollled variable HP...

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