scholarly journals Extra‐pair offspring are less heterozygous than within‐pair offspring in American redstarts Setophaga ruticilla

2019 ◽  
Vol 50 (4) ◽  
Author(s):  
Adrianne Hajdasz ◽  
Ann E. McKellar ◽  
Laurene M. Ratcliffe ◽  
Peter T. Boag ◽  
Peter P. Marra ◽  
...  
Keyword(s):  
Setophaga Ruticilla ◽  
American Redstarts

Dual strategies of song development in American redstarts, Setophaga ruticilla

1994 ◽  
Vol 47 (2) ◽  
pp. 317-329 ◽  
Author(s):  
Robert E. Lemon ◽  
Stephane Perreault ◽  
Daniel M. Weary
Keyword(s):  
Setophaga Ruticilla ◽  
American Redstarts ◽  
Song Development

Songs of American Redstarts (Setophaga ruticilla): Sequencing Rules and their Relationships to Repertoire Size

Ethology ◽  
2010 ◽  
Vol 93 (3) ◽  
pp. 198-210 ◽  
Author(s):  
Robert E. Lemon ◽  
Charles W. Dobson ◽  
Peter G. Clifton
Keyword(s):  
Repertoire Size ◽  
Setophaga Ruticilla ◽  
American Redstarts

scholarly journals Patterns and correlates of extrapair paternity in American redstarts (Setophaga ruticilla)

1997 ◽  
Vol 8 (6) ◽  
pp. 612-621 ◽  
Author(s):  
Stéphane Perreault ◽  
Robert E. Lemon ◽  
Urs Kuhnlein
Keyword(s):  
Setophaga Ruticilla ◽  
Extrapair Paternity ◽  
American Redstarts

American Redstarts (Setophaga ruticilla) usurp Cerulean Warbler (Setophaga cerulea) nest in Southern Indiana

2018 ◽  
Vol 130 (2) ◽  
pp. 554-558 ◽  
Author(s):  
Clayton D. Delancey ◽  
Garrett J. MacDonald ◽  
Kamal Islam
Keyword(s):  
Setophaga Ruticilla ◽  
Cerulean Warbler ◽  
American Redstarts

Song Similarity between Neighboring American Redstarts (Setophaga ruticilla): A Statistical Analysis

The Auk ◽  
1988 ◽  
Vol 105 (4) ◽  
pp. 609-615 ◽  
Author(s):  
N. L. Shackell ◽  
R. E. Lemon ◽  
D. Roff
Keyword(s):  
Statistical Analysis ◽  
Statistical Significance ◽  
Null Distribution ◽  
Computer Method ◽  
Setophaga Ruticilla ◽  
American Redstart ◽  
American Redstarts ◽  
Level Of Significance ◽  
Degree Of Similarity

Abstract We examined the hypothesis that territorial American Redstart (Setophaga ruticilla) males are geographically randomly distributed with respect to structure of the single song used predominantly before nesting. Present methods to assess the degree of similarity of song between neighboring birds are often inadequate because they do not give the level of statistical significance. We present a computer method to generate the appropriate null distribution from which the level of significance can be determined. We found statistically significant correlations between neighbors primarily in the last and penultimate discrete vocal items (phones) of the song. There were also important differences between the 2 samples.

Relationships between carotenoid-based female plumage and age, reproduction, and mate colour in the American Redstart (Setophaga ruticilla)

2013 ◽  
Vol 91 (8) ◽  
pp. 589-595 ◽  
Author(s):  
Matthew M. Osmond ◽  
Matthew W. Reudink ◽  
Ryan R. Germain ◽  
Peter P. Marra ◽  
Joseph J. Nocera ◽  
...  
Keyword(s):  
Parental Care ◽  
First Year ◽  
Plumage Colour ◽  
Setophaga Ruticilla ◽  
Reflectance Spectrometry ◽  
American Redstart ◽  
Plumage Colouration ◽  
Adult Females ◽  
American Redstarts ◽  
Second Year

Most studies investigating the function and evolution of ornaments have focused on males. Variation in ornaments may also reflect individual quality and convey information in females. We examined correlations between female plumage colour and reproductive variables in the sexually dichromatic songbird, the American Redstart (Setophaga ruticilla (L., 1758)). Female American Redstarts display yellow, carotenoid-based plumage patches on their tails, wings, and flanks. Using reflectance spectrometry, we quantified brightness (feather structure) and “yellowness” (hue and chroma) of tail and flank feathers to examine whether female plumage colour varies with age, reproductive success, parental care, and the plumage colour of mates. Female plumage varied with age, with adult (after-second-year) females having brighter tail feathers than first-year females. We failed to find a relationship between female plumage colour and pairing or first-egg dates. However, adult females with brighter tails visited their nests less frequently and first-year females with brighter tails fledged fewer offspring. Adult females with brighter tails also mated with males who provided less care. In addition, adult females with yellower flanks paired with males with brighter flanks and with males who provided less parental care. We suggest that plumage colouration in female American Redstarts can act as a signal of individual age and quality.

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