Compare the Types of Selection Seen in Medium Ground Finch

question 32

Essay

Compare the types of selection seen in medium ground finch beak size in the Galápagos Islands after the drought of 1977, in Australian snake gape width after the introduction of the cane toad, and in gall size produced by gallflies after selection by predatory birds and parasitoid wasps. For each scenario, draw a figure illustrating the type of selection acting on the population (draw the distribution of phenotypes in the population before and after selection). Indicate whether the selection is directional, stabilizing, or disruptive.

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Definitions:

Properly Protected

Having adequate safety measures or defenses in place against harm or danger.

Duty To Warn

An ethical and legal responsibility of certain professionals to disclose information to prevent harm to a third party.

Permission To Warn

A principle that may allow a professional, under certain conditions, to breach confidentiality in order to warn a third party of potential danger.

Laws

The system of rules that are created and enforced through social or governmental institutions to regulate behavior.