Power5_PopulationBiology - Population biology Demography...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Population biology Demography : study of how the vital rates of individuals (birth, death, growth, migration) affect structure and dynamics of populations Population : group of potentially interbreeding individuals (same species, co-occur in time and space) density : number of individuals per area or volume size structure size structure age distribution sex ratio 2 BIDE Equation for change in population size, N: ! N (numbers in population) = Births + Immigration - Deaths - Emigration 3 Dispersion : pattern of distribution of individuals in space (clumped, even, or random = every site has an equal probability of being occupied by an individual, independent of locations of other individuals) 4 Parent Ganet chicks A peck apart… 5 Intraspecific interactions (between individuals of the same species) vs Interspecific interactions (between individuals of different species) Life (and reproductive) table —summary of age (or size) specific rates of survival and fecundity (progeny per individual) Constructed by following a cohort : a group of mature, most of you will be eaten.”
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 05/09/2010 for the course BIO biology taught by Professor Meighan during the Spring '09 term at Berkeley.

Page1 / 5

Power5_PopulationBiology - Population biology Demography...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online