The Living World Fourth Edition GEORGE B. JOHNSON Copyright ©The McGraw-Hill Companies, Inc. Permission required for reproduction or display PowerPoint.
Living In Ecosystems- Population Dynamics Chapter 30 Copyright © McGraw-Hill Companies Permission required for reproduction or display.
Lecture 27 Populations, Communities, & Ecosystems.
The gradualist point of view (review) Evolution occurs within populations where the fittest organisms have a selective advantage. Over time the advantages.
The gradualist point of view Evolution occurs within populations where the fittest organisms have a selective advantage. Over time the advantages genes.
Corpus Christi Water Dept. Presentation by: Edward Tatum Hankins.
What are the limitations that keep population sizes from continuing to grow exponentially?
In the deterministic model, the time till fixation depends on the selective advantage, but fixation is guaranteed.
Selection versus drift The larger the population the longer it takes for an allele to become fixed. Note: Even though an allele conveys a strong selective.
Lecture 27 Populations, Communities, & Ecosystems
selection versus drift
