NE Langmore - Trends in Ecology & Evolution, 1998 - cell.com
Bird song is generally associated with males. In part, this reflects a bias towards studies in temperate regions, because in the tropics females of many species are regular and prolific …
MD Jennions, AP Moller… - The Quarterly Review of …, 2001 - journals.uchicago.edu
Traits correlated with male mating success are likely to be subject to sexual selection. Sexually selected characters are thought to be costly to develop and maintain. If males do …
Is the cost of reproduction different between males and females? On the one hand, males typically compete intensely for mates, thus sexual selection theory predicts higher cost of …
When Darwin first proposed the possibility of sexual selection, he identified two mechanisms, male competition for mates and female choice of mates. Extending this …
D Hasselquist - Ecology, 1998 - Wiley Online Library
To study the relative importance of factors with direct and indirect effects on male fitness in the polygynous Great Reed Warbler, Acrocephalus arundinaceus, I investigated …
AJ Keyser, GE Hill - Behavioral Ecology, 2000 - academic.oup.com
We investigated the signaling function of blue plumage in male blue grosbeaks (Guiraca caerulea) to determine if structurally based coloration may act as a reliable signal of quality …
Immunosuppressive effects of testosterone lead to a prediction of male-biased parasitism. To test this prediction, prevalences of blood parasites were compared between male and …
SR Pryke, SC Griffith - … of the Royal Society B: Biological …, 2006 - royalsocietypublishing.org
Recent sexual selection studies on the evolution of bird colouration have mainly focused on signals with a high level of condition-dependent variation, with much less attention given to …
This study tested whether female red-winged blackbirds, Agelaius phoeniceusacquire non- genetic, material benefits from copulating with multiple males. In this population, females …