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Testosterone Metabolism in Reptiles

Rachel E. Cohen and Juli Wade

in Brain Aromatase, Estrogens, and Behavior

Published in print:
2012
Published Online:
January 2013
ISBN:
9780199841196
eISBN:
9780199979837
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199841196.003.0012
Subject:
Neuroscience, Neuroendocrine and Autonomic

In the brain, testosterone (T) can be metabolized into estradiol via the action of the aromatase enzyme, and into 5α-dihydrotestosterone via the action of the 5α-reductase (5αR) enzyme. This chapter ... More


Lizards in an Evolutionary Tree: Ecology and Adaptive Radiation of Anoles

Jonathan Losos

Published in print:
2009
Published Online:
March 2012
ISBN:
9780520255913
eISBN:
9780520943735
Item type:
book
Publisher:
University of California Press
DOI:
10.1525/california/9780520255913.001.0001
Subject:
Biology, Evolutionary Biology / Genetics

Adaptive radiation—which results when a single ancestral species gives rise to many descendants, each adapted to a different part of the environment—is possibly the single most important source of ... More


Five Anole Faunas, Part One: Greater Antillean Ecomorphs

Jonathan B. Losos

in Lizards in an Evolutionary Tree: Ecology and Adaptive Radiation of Anoles

Published in print:
2009
Published Online:
March 2012
ISBN:
9780520255913
eISBN:
9780520943735
Item type:
chapter
Publisher:
University of California Press
DOI:
10.1525/california/9780520255913.003.0003
Subject:
Biology, Evolutionary Biology / Genetics

This chapter focuses on the geographic distribution of anoles throughout the Greater Antilles. It begins by introducing the ecomorph concept: the idea that groups of species are recognizable as ... More


Phylogenetics, Evolutionary Inference, and Anole Relationships

Jonathan B. Losos

in Lizards in an Evolutionary Tree: Ecology and Adaptive Radiation of Anoles

Published in print:
2009
Published Online:
March 2012
ISBN:
9780520255913
eISBN:
9780520943735
Item type:
chapter
Publisher:
University of California Press
DOI:
10.1525/california/9780520255913.003.0005
Subject:
Biology, Evolutionary Biology / Genetics

This chapter focuses on conceptual issues regarding phylogenetic approaches to evolutionary questions and then outlines the Anolis phylogeny, first discussing the uses and limitations of phylogenetic ... More


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