This preview shows page 1. Sign up to view the full content.
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
-Shorter one is • Facilitates the colonization
of other coastal sage scrub
species shorter (lmao) • Two distinct architectual
– 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...
View Full Document
This document was uploaded on 01/27/2014.
- Winter '14
- Annotated Lecture S