scholarly journals Female Song Occurs in Songbirds with More Elaborate Female Coloration and Reduced Sexual Dichromatism

2016 ◽  
Vol 4 ◽  
Author(s):  
Wesley H. Webb ◽  
Dianne H. Brunton ◽  
J. David Aguirre ◽  
Daniel B. Thomas ◽  
Mihai Valcu ◽  
...  
Keyword(s):  
Sexual Dichromatism ◽  
Female Song ◽  
Female Coloration

scholarly journals Migration and the evolution of sexual dichromatism: evolutionary loss of female coloration with migration among wood-warblers

2015 ◽  
Vol 282 (1809) ◽  
pp. 20150375 ◽  
Author(s):  
Richard K. Simpson ◽  
Michele A. Johnson ◽  
Troy G. Murphy
Keyword(s):  
Sexual Selection ◽  
Sexual Dichromatism ◽  
Ancestral State ◽  
Migration Distance ◽  
Female Ornamentation ◽  
Wood Warblers ◽  
Selection For ◽  
Evolution Of Migration ◽  
And Migration ◽  
Female Coloration

The mechanisms underlying evolutionary changes in sexual dimorphism have long been of interest to biologists. A striking gradient in sexual dichromatism exists among songbirds in North America, including the wood-warblers (Parulidae): males are generally more colourful than females at northern latitudes, while the sexes are similarly ornamented at lower latitudes. We use phylogenetically controlled comparative analysis to test three non-mutually exclusive hypotheses for the evolution of sexual dichromatism among wood-warblers. The first two hypotheses focus on the loss of female coloration with the evolution of migration, either owing to the costs imposed by visual predators during migration, or owing to the relaxation of selection for female social signalling at higher latitudes. The third hypothesis focuses on whether sexual dichromatism evolved owing to changes in male ornamentation as the strength of sexual selection increases with breeding latitude. To test these hypotheses, we compared sexual dichromatism to three variables: the presence of migration, migration distance, and breeding latitude. We found that the presence of migration and migration distance were both positively correlated with sexual dichromatism, but models including breeding latitude alone were not strongly supported. Ancestral state reconstruction supports the hypothesis that the ancestral wood-warblers were monochromatic, with both colourful males and females. Combined, these results are consistent with the hypotheses that the evolution of migration is associated with the relaxation of selection for social signalling among females and that there are increased predatory costs along longer migratory routes for colourful females. These results suggest that loss of female ornamentation can be a driver of sexual dichromatism and that social or natural selection may be a stronger contributor to variation in dichromatism than sexual selection.

scholarly journals EVOLUTION OF SEXUAL DICHROMATISM. 1. CONVERGENT LOSSES OF ELABORATE FEMALE COLORATION IN NEW WORLD ORIOLES (ICTERUSSPP.)

The Auk ◽  
2008 ◽  
Vol 125 (4) ◽  
pp. 778-789 ◽  
Author(s):  
CHRISTOPHER M. HOFMANN ◽  
THOMAS W. CRONIN ◽  
KEVIN E. OMLAND
Keyword(s):  
New World ◽  
Sexual Dichromatism ◽  
Female Coloration

scholarly journals Female song in the Cyprus Wheatear Oenanthe cypriaca

2021 ◽  
Author(s):  
Robert Patchett ◽  
Alexander N. G. Kirschel ◽  
Joanna Robins King ◽  
Patrick Styles ◽  
Will Cresswell
Keyword(s):  
Breeding Season ◽  
Bird Species ◽  
Breeding Period ◽  
Territorial Defence ◽  
Multiple Functions ◽  
Male Song ◽  
Female Song ◽  
Mate Acquisition

AbstractFemale song is widespread across bird species yet rarely reported. Here, we report the first observations and description of female song in the Cyprus Wheatear Oenanthe cypriaca and compare it to male song through the breeding season. Twenty-five percent of colour-ringed females were observed singing at least once, predominantly in April, compared to 71% of males that continued singing through the breeding period. We suggest that female song may have multiple functions in this species, but it may be especially important in territorial defence and mate acquisition.

Cryptic sexual dichromatism occurs across multiple types of plumage in the Green-backed Tit Parus monticolus

Ibis ◽  
2006 ◽  
Vol 149 (2) ◽  
pp. 264-270 ◽  
Author(s):  
CHRISTOPHER HOFMANN ◽  
WEN-SUI LO ◽  
CHENG-TE YAO ◽  
SHOU-HSIEN LI
Keyword(s):  
Sexual Dichromatism

Female song can be as long and complex as male song in wild House Finches (Haemorhous mexicanus)

2021 ◽  
Vol 132 (4) ◽  
Author(s):  
Ar Kornreich ◽  
Mason Youngblood ◽  
Paul C. Mundinger ◽  
David C. Lahti
Keyword(s):  
House Finches ◽  
Male Song ◽  
Female Song ◽  
Haemorhous Mexicanus

scholarly journals Losses of female song with changes from tropical to temperate breeding in the New World blackbirds

2009 ◽  
Vol 276 (1664) ◽  
pp. 1971-1980 ◽  
Author(s):  
J. Jordan Price ◽  
Scott M. Lanyon ◽  
Kevin E. Omland
Keyword(s):  
Sexual Selection ◽  
New World ◽  
Female Song ◽  
Complex Song ◽  
Evolutionary Changes ◽  
Apparent Relationship ◽  
Song Production ◽  
Selection For ◽  
The Tropics

Birds in which both sexes produce complex songs are thought to be more common in the tropics than in temperate areas, where typically only males sing. Yet the role of phylogeny in this apparent relationship between female song and latitude has never been examined. Here, we reconstruct evolutionary changes in female song and breeding latitude in the New World blackbirds (Icteridae), a family with both temperate and tropical representatives. We provide strong evidence that members of this group have moved repeatedly from tropical to temperate breeding ranges and, furthermore, that these range shifts were associated with losses of female song more often than expected by chance. This historical perspective suggests that male-biased song production in many temperate species is the result not of sexual selection for complex song in males but of selection against such songs in females. Our results provide new insights into the differences we see today between tropical and temperate songbirds, and suggest that the role of sexual selection in the evolution of bird song might not be as simple as we think.

Bluegill Coloration as a Sexual Ornament: Evidence From Ontogeny, Sexual Dichromatism, and Condition Dependence

Ethology ◽  
2010 ◽  
Vol 116 (5) ◽  
pp. 416-428 ◽  
Author(s):  
Karen M. Cogliati ◽  
Lynda D. Corkum ◽  
Stéphanie M. Doucet
Keyword(s):  
Condition Dependence ◽  
Sexual Dichromatism ◽  
Sexual Ornament
Sign in / Sign up

Export Citation Format

Share Document