BI111 Lecture 29: POP-ECOLOGY-LEC-29
Document Summary
Ecology: levels of org indivs to biosphere, interactions bt orgs (biotic) and enviros (abiotic) Geo range: geo range: overall spatial boundaries within which a pop lives, habitat: spec enviro in which a pop lives, char"d by bio and abiotic feats. Pop denstiy and body size: rel bt size and density indicates info about resources used and competition. Population dispersion: spatial distrib of indivs within geo range. Dandelions: max distance bt any 2 indivs, in many plants due to compet for resources, can result from territorial behaviour ex. Mating season: most common, resources rare, poor dispersal cap ex. Offspring stay close to parents: benefit group living. Defence, parental care: uniform distrib, clumped distrib. Further population characteristics: pop age struc: indivs of diff ages, sex ratio: male vs female, proportion reducing: ex. Conservation where species can be rare or widely dispersed: generation time: avg time bt indivs birth and birth of offspring, can have dramatic eff on cap for future growth.
