Search, encounter rates, and the evolution of anisogamy.
AUTOR(ES)
Cox, P A
RESUMO
We describe analytical and numerical models to study gamete encounters in two and three dimensions between differently sized gametes without assuming pre-existing mating types. Our results indicate that an isogamous population can be successfully invaded by a gametangium if it produces gametes of a different size. The existence of a low adaptive peak for isogamy and a much higher adaptive peak for anisogamy suggests that stochastic forces may be initially important in driving isogamy through the fitness saddle to anisogamy.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=391862Documentos Relacionados
- A comparative test of a theory for the evolution of anisogamy.
- Rates, patterns, and effectiveness of evolution in multi-level situations.
- Grazing in a turbulent environment: energy dissipation, encounter rates, and efficacy of feeding currents in Centropages hamatus.
- Disparate rates, differing fates: tempo and mode of evolution changed from the Precambrian to the Phanerozoic.
- Growth Hormone: Metabolic Clearance Rates, Integrated Concentrations, and Production Rates in Normal Adults and the Effect of Prednisone