2008 plant and soil 303 95 103 in both places galled

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Unformatted text preview: nutrient cycling Amount of N 19 20 Crutsinger et al. 2008, Plant and Soil 303: 95 103 -In both places, galled plants have more N and more Mass remaining for l onger periods of time. -This species is an early colonizer. Woody species invade. -Feedback loop: initial N and C composition of genotype leads to differences in insect attack, leads to differences in decomposition -"Leads to variation in the rate of succession in larger scale ecological processes t hat depend on the rate of decomp (availability of Carbon)" Alternate genotypes affect: Light, temperature, and litter depth Coyote Bush • Native to California • Important colonizing species of grasslands and scrub ecosystems -Tall one grows t aller -Shorter one is • Facilitates the colonization of other coastal sage scrub species shorter (lmao) • Two distinct architectual genotypes – Erect – Prostrate 21 -Upright variety and flat (prostrate variety) -Grows over the dune off the beach in that area that is transition bet ween beach and f orest area Crutsinger et al. 2010, Ecology 91:1237–1243 22 -Prostrate: leads to darker soil and cooler temperatures in the soil under the tree -Genetic diff affects amount of light, temp and litter that accumulates -What effect does this have on other species in colonizing vegetation? -Phenotypes are marked by genetic differences -This has implications on abiotic enviro underneath the plant …which in turn affect: Biomass, % cover, species richness of other colonizers Can genetic variation affect other species colonization? • Chain of causation: – Genotypes differ in their archite...
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This document was uploaded on 01/27/2014.

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