BIS 2B Study Guide - Final Guide: Niche Differentiation, Phylogenetic Tree, Detritivore

• School: UC-Davis
• Department: Biological Sciences
• Course: BIS 2B
• Professor: Mark Schwartz; Sharon Strauss

Document Summary

How to r and k selected traits relate to succession? r reproduce quickly and disperse quickly, k have more invested in offspring, better competitors. Nitrogen waste comes from fertilizers, chemically fix nitrogen and put it in environment through fertilizers, by us using fertilizers we anthropogenically fix nitrogen. Also with combustion engines from cars and industry. Relate these results to niche partitioning and empty niches. Phylogenetic component is that they are very different. Facilitation - one species aids another coming into ecosystem. Inhibition - one species prohibits another coming into ecosystem. Species a is early, species b is late; system is changing from a to b. Trials: one system with a and b, one with only b what we"re measuring: the growth/abundance/presence of b. If it is facilitation, there is the chance for b to not grow at all without. Fossilized early pre-cursors had claws to climb up trees and use wings to glide down.