BIOSC 0370 Lecture 20: Lecture Notes 20
16 Oct 2018
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Do logistic growth density as as a form of density changes , r changes. Dependent growth ( density =n ) as. Note : there dependence another form of density dependent growth. Males sing to claim an area and claim mates usually stop singing as much when they find a mate. Biologists hear male song all summer long couldn"t get mates. * allee effect at very densities , low resources are abundant but mates are scarce f) See observed population growth handout evidence that populations oscillate around. K in nature intraspecific competition must be an important factor in population growth . Inter specific competition: gause experiment yeast ( saccharomyces) pure population logistic growth another yeast ( schizosaccharomyces) pure population : logistic growth. Max population sizes decrease substantially populations level out before ethanol reaches toxic levels interspecific. Bk we have interspecific comp , there must also be. Bc interspecific comp , implies intra comp.
