BIOLOGY 1M03 Lecture Notes - Lecture 19: Competitive Exclusion Principle, Big Bang, Aposematism
11 Aug 2018
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Population ecology: life tables and life history & community ecology. Continuous growth: many species show growth that is not tied to a particular annual season (eg human, yeast, bacteria) "r", per capita growth rate, measures growth at any particular instant. It is also called "the instantaneous rate of increase" (cid:396) (cid:396)elates to a(cid:272)(cid:272)o(cid:396)di(cid:374)g to: = e(cid:396) o where e is the base of the natural log (about 2. 72) U(cid:271)stituti(cid:374)g i(cid:374) the dis(cid:272)(cid:396)ete g(cid:396)o(cid:449)th e(cid:395)uatio(cid:374): nt= n0 t o gives: nt= n0ert --> continuous growth equation. Making projections with life tables: goal is what is total population size be at end of 3 years, basically adding all the generations of induviduals. Life history: how can organism allocate resources to growth, reproduction and activities or structures related to survival: there is a trade-off (high fecundity and low survivorship) - putting everything into reproduction. You cant have high fecundity and high survivorship.
