Biology 2483A Lecture Notes - Lecture 8: Monarch Butterfly, Phragmites, Impatiens

• School: Western University
• Department: Biology
• Course: Biology 2483A
• Professor: Graham Taylorand Sheila Macfie

Document Summary

Populations are dynamic; they vary over time and space. The distributions and abundances of organisms are limited by habitat suitability and dispersal. Dispersion of individuals within a population depends on the locations of resources, competition, dispersal and behavioural interactions. Population abundances and distributions can be estimated using four techniques: populations are dynamic; they vary over time and space. Two populations likelihood of them interacting is low. Whe(cid:374) (cid:449)e defi(cid:374)e a populatio(cid:374) it"s (cid:271)est do(cid:374)e i(cid:374) a (cid:373)o(cid:373)e(cid:374)t i(cid:374) ti(cid:373)e (cid:271)e(cid:272)ause it (cid:272)a(cid:374) (cid:272)ha(cid:374)ge o(cid:448)e(cid:396) the seaso(cid:374)s: abundance changes over space and time. In 1984, most of the beetles were found at the hector site, but in 1990 most of the beetles were found at the maple island site. Diff spaces have diff pops at different times: dispersal links populations. Spiders spin some silk and ride the winds like with a hangglider air and water currents. Phoresy: one organism carried by another - non-parasitic.