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Unformatted text preview: moisten body surfaces with saliva). Can define two groups based on differences in the widths of
Tropical species – narrow zone
Arctic Species – broad zone
zone Important point – thermoregulation outside of thermal
neutral zone costs energy which could otherwise be
directed to other processes. Te = G+M+R
Life History Theory - the schedule and duration of key
History Theory the schedule and duration of key
events in an organism's lifetime are shaped by natural
selection to produce the largest possible number of
surviving offspring. Life history characteristics are traits that affect the life
table of an organism, and can be imagined as various
investments in growth, reproduction, and survivorship.
investments in growth, reproduction, and survivorship. The goal of life history theory is to understand the variation in such life
This knowledge can be used to construct models to predict what kinds
of traits wil...
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This document was uploaded on 03/29/2014 for the course ECOLOGY 3450 at Weber.
- Fall '12