Geothlypis trichas: BirdLife International

2016 ◽  
Author(s):  
Keyword(s):  
Geothlypis Trichas

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 Avian Response to Nutrient Enrichment in an Oligotrophic Wetland, the Florida Everglades

The Condor ◽  
2002 ◽  
Vol 104 (3) ◽  
pp. 631-642
Author(s):  
Gaea E. Crozier ◽  
Dale E. Gawlik
Keyword(s):  
Water Depth ◽  
Florida Everglades ◽  
Agelaius Phoeniceus ◽  
Bird Abundance ◽  
Ardea Herodias ◽  
Eudocimus Albus ◽  
Ardea Alba ◽  
Geothlypis Trichas ◽  
Mycteria Americana ◽  
Quiscalus Major

Abstract We studied the effects of nutrient enrichment on the bird community in an oligotrophic wetland, the Florida Everglades. Among the non-wading birds surveyed in 1996 and 1997, Boat-tailed Grackles (Quiscalus major) and Common Moorhens (Gallinula chloropus) were consistently more abundant in enriched sites, whereas Common Yellowthroats (Geothlypis trichas) were consistently more abundant in unenriched sites. The abundance of Red-winged Blackbird (Agelaius phoeniceus) was not significantly different between enriched and unenriched sites. Among wading birds, Wood Storks (Mycteria americana) and Great Egrets (Ardea alba) were significantly more abundant in enriched than unenriched areas in a dry year, 1991. Great Egrets and all wading species combined were significantly more abundant in enriched than unenriched areas in the wet year, 1995. Great Blue Herons (Ardea herodias) and White Ibises (Eudocimus albus) did not differ in abundance between enriched and unenriched areas in the dry or wet year. A significant interaction between water depth and nutrient status in the wet year indicated that wading bird abundance increased with water depth only in nutrient-enriched areas presumably because the enriched areas had greater food availability than unenriched areas at the same water depth. Bird abundance appeared to increase in nutrient-enriched areas; however, this increase was accompanied by a shift in species composition typically found in the unenriched Everglades and was a fundamental change in the Everglades' distinctive structure. Respuestas de las Aves al Enriquecimiento con Nutrientes en un Humedal Oligotrófico, en los Pantanos de los Everglades en Florida Resumen. Estudiamos los efectos del enriquecimiento con nutrientes sobre la comunidad de aves en un humedal oligotrófico, los pantanos de los Everglades en Florida. Entre las aves no vadeadoras censadas en 1996 y 1997, Quiscalus major y Gallinula chloropus fueron consistentemente más abundantes en sitios enriquecidos, mientras que Geothlypis trichas fue consistentemente más abundante en sitios no enriquecidos. La abundancia de Agelaius phoeniceus no difirió significativamente entre los sitios enriquecidos y no enriquecidos. Entre las aves vadeadoras, Mycteria americana y Ardea alba fueron significativamente más abundantes en áreas enriquecidas que en las no enriquecidas durante 1991, un año seco. En 1995, un año húmedo, Ardea alba y todas las demás aves vadeadoras fueron significativamente más abundantes en áreas enriquecidas que en las no enriquecidas. Ardea herodias y Eudocimus albus no difirieron en abundancia entre áreas enriquecidas y no enriquecidas en el año húmedo ni en el año seco. En el año húmedo, encontramos una interacción significativa entre la profundidad del agua y el estado de los nutrientes, lo que indicó que la abundancia de aves vadeadoras aumentó sólo en las áreas enriquecidas con nutrientes, presumiblemente debido a que las áreas enriquecidas presentaron mayor disponibilidad de alimento que las áreas no enriquecidas de una profundidad de agua equivalente. La abundancia de aves pareció aumentar en las áreas enriquecidas con nutrientes; sin embargo, este incremento estuvo acompañado con un cambio en la composición de las especies encontradas normalmente en los pantanos de los Everglades de Florida que no han sido enriquecidos, y representó un cambio fundamental en la estructura característica de los Everglades.

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

scholarly journals Restoration of an Audubonian form of Geothlypis Trichas to the American Avifauna

The Auk ◽  
1889 ◽  
Vol 6 (2) ◽  
pp. 167-168
Author(s):  
E. M. Hasbrouck
Keyword(s):  
Geothlypis Trichas

scholarly journals Species-Specific Responses of Bird Song Output in the Presence of Drones

2020 ◽  
Author(s):  
Andrew M. Wilson ◽  
Kenneth S. Boyle ◽  
Jennifer L. Gilmore ◽  
Cody J. Kiefer ◽  
Matthew F. Walker
Keyword(s):  
Ground Level ◽  
Wald Test ◽  
Mixed Effect ◽  
Yellow Warbler ◽  
American Robin ◽  
Northern Cardinal ◽  
Geothlypis Trichas ◽  
Field Sparrow ◽  
Species Specific ◽  
Behavioral Impact

AbstractDrones are now widely used to study wildlife, but applications for studying bioacoustics have been limited. Drones can be used to collect data on bird vocalizations, but an ongoing concern is that noise from the drones could change bird vocalization behavior. To test this behavioral impact we conducted an experiment using 30 sound localization arrays to track the song output of seven songbird species before, during, and after a 3-minute flight of a small quadcopter drone hovering at 50 m above ground level. We analyzed 8,303 song bouts, of which 2,285 song bouts of 184 individual birds were within 50 meters of the array centers. We used linear mixed effect models to assess patterns in song output showed patterns that could be attributed to the drone’s presence. We found no evidence of any effect of the drone for five species: American Robin Turdus migratorius, Common Yellowthroat Geothlypis trichas, Field Sparrow Spizella pusilla, Song Sparrow Melospiza melodia, and Indigo Bunting Passerina cyanea. However, we found a substantial decrease in Yellow Warbler Setophaga petechia song detections during the 3-minute drone hover, such that there was an 81% drop in detections in the 3rd minute (Wald-test, p<0.001), compared with before the drone’s introduction. In contrast, the number of singing Northern Cardinal Cardinalis cardinalis increased after the drone was introduced, and remained almost five-fold higher for 4-minutes after the drone departed (P<0.001). Further, we found an increase in cardinal contact/alarm calls when the drone was overhead, with the elevated calling-rate sustaining for 2 minutes after the drone had departed (P<0.001). Our study suggests that responses of songbirds to drones may be species-specific, an important consideration when proposing the use of drones in avian studies. We note that recent advances in drone technology have resulted in much quieter drones, which makes us hopeful that the impacts that we detected could be greatly reduced.

Common Yellowthroat (Geothlypis trichas)

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