Adaptation and Population Regulation

Adaptation and Population Regulation - Adaptation and...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Adaptation and Population Regulation As we have seen, a key issue for ecological adaptation is level at which adaptive design is likely to occur One argument holds that since exceeding carrying capacity threatens the persistence of the population (or even ecosystem), reproductive restraint (i.e., limiting reproductive rate below what is currently supportable) evolves to prevent future overpopulation After all, this argument goes, if over-reproduction leads to eventual resource depletion, then at some point there will be fewer resources in future for one's descendants; hence it follows that less reproduction would actually increase number of surviving descendants, and provide an evolutionary advantage to fertility limitation This view, which was popular among biologists until mid-1960's (e.g., Wynne-Edwards 1965), and remains popular with some social scientists today, sounds intuitively plausible But it suffers from two serious weaknesses: 1) it conflates what's adaptive for the collectivity (the population) with what's adaptive for
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/22/2011 for the course ANT ANT2000 taught by Professor Monicaoyola during the Fall '10 term at Broward College.

Page1 / 2

Adaptation and Population Regulation - Adaptation and...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online