BIO SCI 94 Lecture Notes - Lecture 24: Scarlet Kingsnake, Tritia Obsoleta, Cerithideopsis Californica

• School: UC-Irvine
• Department: Biological Sciences
• Course: BIO SCI 94
• Professor: Brandon Stuart Gaut

Document Summary

Community ecology: study of biological communities, which consist of all of the species that interact in a certain area, community ecologists studying the interaction among species ask: Is one a predator and one a prey: what happens to a community after large changes--for example, after a volcano or increased temperature, ex: ca - wildfires. Lowers the fitness of individuals b/c competitors are using some of the resources. Intraspecific: w/in species: differential reproductive success (natural selection, exponential growth, logistic growth, density dependence, when resources become limiting, individuals of the same species start to compete & that slows the growth of populations. Interspecific: between species: niche: the range of resources that the species can use and/or the range of environmental conditions it can tolerate. Includes all aspects of its habitat, how it makes a living, & the physical environment in which it is found: ex: niche defined in terms of seed size.