Pelecitus tubercauda n. sp. (Nematode: Filarioidea) from Geothlypis trichas L. and a redescription of P. fulicaeatrae (Diesing, 1861) López-Neyra, 1956

1984 ◽  
Vol 62 (3) ◽  
pp. 362-367 ◽  
Author(s):  
Daryl J. Vanderburgh ◽  
Roy C. Anderson ◽  
T. M. Stock
Keyword(s):  
Wintering Grounds ◽  
Common Yellowthroat ◽  
Geothlypis Trichas ◽  
Podiceps Grisegena ◽  
Main Distinguishing Feature

Pelecitus tubercauda n. sp. (Onchocercidae: Dirofilariinae) from the leg of a Common Yellowthroat, Geothlypis trichas L. (Parulidae), is described and Pelecitus fulicaeatrae (Diesing, 1861) López-Neyra, 1956 from the legs of Podiceps grisegena Boddaert (Podicipedidae) is redescribed. The main distinguishing feature of P. tubercauda is the presence in males of prominent granular masses between caudal papillae. Yellowthroats may acquire P. tubercauda sporadically on their wintering grounds.

Common Yellowthroat (Geothlypis trichas)

1999 ◽  
Author(s):  
Michael J. Guzy ◽  
Gary Ritchison
Keyword(s):  
Common Yellowthroat ◽  
Geothlypis Trichas

scholarly journals Geographic variation in the function of ornaments in the common yellowthroat Geothlypis trichas

2008 ◽  
Vol 39 (1) ◽  
pp. 66-72 ◽  
Author(s):  
Peter O. Dunn ◽  
Linda A. Whittingham ◽  
Corey R. Freeman-Gallant ◽  
Jonathan DeCoste
Keyword(s):  
Geographic Variation ◽  
Common Yellowthroat ◽  
Geothlypis Trichas ◽  
The Common

scholarly journals Brood Sex Ratios are Related to Male Size but not to Attractiveness in Common Yellowthroats (Geothlypis Trichas)

The Auk ◽  
2007 ◽  
Vol 124 (1) ◽  
pp. 176-184 ◽  
Author(s):  
Betsy Abroe ◽  
Julia C. Garvin ◽  
Marc C. Pedersen ◽  
Linda A. Whittingham ◽  
Peter O. Dunn
Keyword(s):  
Body Size ◽  
Sex Ratio ◽  
Reproductive Value ◽  
Male Body ◽  
Male Size ◽  
Common Yellowthroat ◽  
Geothlypis Trichas ◽  
The Common ◽  
Fitness Benefits ◽  
Male Ornament

Abstract When the reproductive value of sons differs from that of daughters, selection will favor broods biased toward the sex that can provide greater fitness benefits. In species where female choice is based on male ornamentation, females mated to highly ornamented males may experience a reproductive advantage by skewing the brood sex ratio toward sons. In the Common Yellowthroat (Geothlypis trichas), males with larger black facial masks are more likely to gain a social mate and sire extrapair young and, as a result, have increased seasonal reproductive success. Females mated to larger-masked males could benefit if they produced more sons. Given that larger- masked males are preferred as extrapair sires, females may also benefit by producing more extrapair sons. We tested these hypotheses during a five-year study of Common Yellowthroats in Wisconsin. Contrary to our predictions, females did not produce more sons when mated to males with larger masks, and extrapair young were not more likely to be male. However, sons were more likely to be sired by males with longer tarsi, which suggests that females may respond to male body size rather than to male ornament size. El Cociente de Sexos en las Nidadas Está Relacionado con el Tamaño de los Machos pero no con el Atractivo en Geothlypis trichas

Geographic variation in the function of ornaments in the common yellowthroat Geothlypis trichas

2007 ◽  
Vol 0 (0) ◽  
pp. 071202183307013-0 ◽  
Author(s):  
Peter O. Dunn ◽  
Linda A. Whittingham ◽  
Corey R. Freeman-Gallant ◽  
Jonathan DeCoste
Keyword(s):  
Geographic Variation ◽  
Common Yellowthroat ◽  
Geothlypis Trichas ◽  
The Common

Common Yellowthroat (Geothlypis trichas)

1999 ◽  
Author(s):  
Michael J. Guzy ◽  
Gary Ritchison
Keyword(s):  
Common Yellowthroat ◽  
Geothlypis Trichas

Allocation of Male Parental Care in Relation to Paternity Within and Among Broods of the Common Yellowthroat (Geothlypis trichas)

Ethology ◽  
2001 ◽  
Vol 107 (7) ◽  
pp. 573-586 ◽  
Author(s):  
Kara A. Peterson ◽  
Kevin J. Thusius ◽  
Linda A. Whittingham ◽  
Peter O. Dunn
Keyword(s):  
Parental Care ◽  
Common Yellowthroat ◽  
Geothlypis Trichas ◽  
The Common

scholarly journals Fluctuations in neighbourhood fertility generate variable signalling effort

2014 ◽  
Vol 281 (1796) ◽  
pp. 20141974 ◽  
Author(s):  
Conor C. Taff ◽  
Gail L. Patricelli ◽  
Corey R. Freeman-Gallant
Keyword(s):  
Natural Populations ◽  
Time Of Day ◽  
Social Environments ◽  
Common Yellowthroat ◽  
Geothlypis Trichas ◽  
The Social ◽  
Sexual Signalling ◽  
Song Production ◽  
Signal Production ◽  
Breeding Seasons

Studies of sexual signalling generally focus on interactions between dyadic pairs, yet communication in natural populations often occurs in the context of complex social networks. The ability to survey social environments and adjust signal production appropriately should be a critical component of success in these systems, but has rarely been documented empirically. Here, we used autonomous recording devices to identify 118 472 songs produced by 26 male common yellowthroats ( Geothlypis trichas ) over two breeding seasons, coupled with detailed surveys of social conditions on each territory. We found strong evidence that common yellowthroat males adjusted their total song production in response to both changes in within-pair social context and changes in the fertility of neighbouring females up to 400 m away. Within the social pair, males drastically reduced their song production when mated, but the magnitude of this reduction depended on both the time of day and on the fertility status of the social mate. By contrast, when fertile females were present on nearby territories, males increased their song output, especially during daytime singing. At this time, it is unclear whether males actively gathered information on neighbouring female fertility or whether the patterns that we observed were driven by changes in social interactions that varied with neighbourhood fertility. Regardless of the mechanism employed, however, subtle changes in the social environment generated substantial variation in signalling effort.

James Petiver's “Mary-Land Yellow-Throat” – a bird misidentified through four centuries

2010 ◽  
Vol 37 (2) ◽  
pp. 221-226
Author(s):  
Storrs L. Olson
Keyword(s):  
Common Yellowthroat ◽  
Geothlypis Trichas ◽  
Generic Term ◽  
The Common

The name “Mary-Land Yellow-Throat” coined by James Petiver in 1702 was subsequently applied to the bird now known as the common yellowthroat, Geothlypis trichas, and the term “yellowthroat”, ultimately derivable from Petiver, is now used as a generic term for all nine species of the warbler genus Geothlypis (Parulidae). Re-examination of Petiver's illustration shows that his bird cannot have been a Geothlypis warbler and was almost certainly the yellow-throated warbler, Dendroica dominica.

scholarly journals Oxidative damage to DNA related to survivorship and carotenoid-based sexual ornamentation in the common yellowthroat

2011 ◽  
Vol 7 (3) ◽  
pp. 429-432 ◽  
Author(s):  
Corey R. Freeman-Gallant ◽  
Joel Amidon ◽  
Brittany Berdy ◽  
Stephanie Wein ◽  
Conor C. Taff ◽  
...  
Keyword(s):  
Dna Damage ◽  
Oxidative Damage ◽  
Sexual Ornaments ◽  
Common Yellowthroat ◽  
Geothlypis Trichas ◽  
The Common ◽  
Sexual Ornamentation ◽  
Oxidative Damage To Dna

Carotenoid-based sexual ornaments are hypothesized to be reliable signals of male quality, based on an allocation trade-off between the use of carotenoids as pigments and their use in antioxidant defence against reactive oxygen species. Carotenoids appear to be poor antioxidants in vivo , however, and it is not clear whether variation in ornament expression is correlated with measures of oxidative stress (OXS) under natural conditions. We used single-cell gel electrophoresis to assay oxidative damage to erythrocyte DNA in the common yellowthroat ( Geothlypis trichas ), a sexually dichromatic warbler in which sexual selection favours components of the males' yellow ‘bib’. We found that the level of DNA damage sustained by males predicted their overwinter survivorship and was reflected in the quality of their plumage. Males with brighter yellow bibs showed lower levels of DNA damage, both during the year the plumage was sampled (such that yellow brightness signalled current OXS) and during the previous year (such that yellow brightness signalled past OXS). We suggest that carotenoid-based ornaments can convey information about OXS to prospective mates and that further work exploring the proximate mechanism(s) linking OXS to coloration is warranted.

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