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Full-Text Articles in Ecology and Evolutionary Biology

Developmental Systems, Darwinian Evolution,And The Unity Of Science, Bruce Weber, David Depew Dec 2000

Developmental Systems, Darwinian Evolution,And The Unity Of Science, Bruce Weber, David Depew

David J Depew

No abstract provided.


Genetic Biotechnology And Evolutionary Theory: Some Unsolicited Advice, David Depew Dec 2000

Genetic Biotechnology And Evolutionary Theory: Some Unsolicited Advice, David Depew

David J Depew

In his book The Biotech Century Jeremy Rifkin makes arguments about the dangers of market-driven genetic biotechnology in medical and agricultural contexts. Believing that Darwinism is too compromised by a competitive ethic to resist capitalist depredations of the “genetic commons,” and perhaps hoping to pick up anti-Darwinian allies, he turns for support to unorthodox non-Darwinian views of evolution. The Darwinian tradition, more closely examined, contains resources that might better serve his argument. The robust tradition associated with Theodosius Dobzhansky, Ernst Mayr, and others provides an alternative, scientifically sound basis for challenging the rhetoric of genetic reductionism.


Body Size And Survivorship In Overwintering Populations Of Porcellio Laevis (Isopoda: Oniscidea), Scott Kight Dec 2000

Body Size And Survivorship In Overwintering Populations Of Porcellio Laevis (Isopoda: Oniscidea), Scott Kight

Scott Kight

Because female Porcellio laevis (Isopoda: Oniscidea) carry eggs and young manca in a ventral marsupium, fecundity and body size are positively correlated. We examined female body size in November and February, a period in which breeding does not occur and changes in body size are unlikely to be attributed to growth. Our results from two consecutive years revealed several general patterns. First, the sex-ratio of individuals collected with baited traps was extremely female biased. Second, body size was significantly larger (as indicated by length of antennae and appendages) in samples collected during November than in those collected during February. Third, …