Biology 1201A Chapter Notes - Chapter 44: Population Ecology, Ecosystem Ecology, Lyssavirus
15 Jul 2015
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Manipulation of model: what would happen if some variables changed. Simulate natural events & large-scale experiments before investing time, energy & money into fieldwork & labs: controlled experiments: researcher"s compare data from experimental treatment (inv. manipulation of 1+ variable) w/ data from control (nothing is changed) 44. 2a geographic range is determined by boundaries of distribution: geographic range: overall spatial boundaries within which it lives, habitat: specific environment in which it lives, characterized by biotic & abiotic features, size, distribution in space, age structure. Monitor/manage populations of endangered species, economically important species, agricultural pests. Estimate: population size in tiny organisms that live at high population densities. 44. 2c population dispersion is the distribution of individuals in space: dispersion: spatial distribution of individual"s within geographic range, clumped dispersion: B/c mates are easy to locate within groups & individuals may cooperate in rearing offspring, feeding, or defending themselves from predators. Reproduce by asexual clones that remain attached to parents.
