Stígðu inn í heim af óteljandi sögum
48 of 17
Óskáldað efni
Understanding the mechanisms driving biological diversity remains a central problem in ecology and evolutionary biology. Traditional explanations assume that differences in selection pressures lead to different adaptations in geographically separated locations. This book takes a different approach and explores adaptive diversification--diversification rooted in ecological interactions and frequency-dependent selection. In any ecosystem, birth and death rates of individuals are affected by interactions with other individuals. What is an advantageous phenotype therefore depends on the phenotype of other individuals, and it may often be best to be ecologically different from the majority phenotype. Such rare-type advantage is a hallmark of frequency-dependent selection and opens the scope for processes of diversification that require ecological contact rather than geographical isolation.
Michael Doebeli investigates adaptive diversification using the mathematical framework of adaptive dynamics. Evolutionary branching is a paradigmatic feature of adaptive dynamics that serves as a basic metaphor for adaptive diversification, and Doebeli explores the scope of evolutionary branching in many different ecological scenarios, including models of coevolution, cooperation, and cultural evolution. He also uses alternative modeling approaches. Stochastic, individual-based models are particularly useful for studying adaptive speciation in sexual populations, and partial differential equation models confirm the pervasiveness of adaptive diversification.
Showing that frequency-dependent interactions are an important driver of biological diversity, Adaptive Diversification provides a comprehensive theoretical treatment of adaptive diversification.
© 2011 Princeton University Press (Rafbók): 9781400838936
Útgáfudagur
Rafbók: 1 augusti 2011
Merki
Hundruðir þúsunda raf- og hljóðbóka
Yfir 400 titlar frá Storytel Original
Barnvænt viðmót með Kids Mode
Vistaðu bækurnar fyrir ferðalögin
Besti valkosturinn fyrir einn notanda
1 aðgangur
Ótakmörkuð hlustun
Engin skuldbinding
Getur sagt upp hvenær sem er
Fyrir þau sem vilja deila sögum með fjölskyldu og vinum.
2-6 aðgangar
100 klst/mán fyrir hvern aðgang
Engin skuldbinding
Getur sagt upp hvenær sem er
2 aðgangar
3990 kr /á mánuðiÍslenska
Ísland