Yellow Warbler (Setophaga petechia)

2020 ◽  
Author(s):  
Peter E. Lowther ◽  
Claudio Celada ◽  
Nedra K. Klein ◽  
Christopher C. Rimmer ◽  
David A. Spector
Keyword(s):  
Yellow Warbler ◽  
Setophaga Petechia

Riparian habitat disturbed by reservoir management does not function as an ecological trap for the Yellow Warbler (Setophaga petechia)

2012 ◽  
Vol 90 (3) ◽  
pp. 320-328 ◽  
Author(s):  
S.P. Quinlan ◽  
D.J. Green
Keyword(s):  
Habitat Selection ◽  
Habitat Preferences ◽  
Canopy Cover ◽  
Ecological Trap ◽  
Riparian Habitat ◽  
Yellow Warbler ◽  
Nest Sites ◽  
Selection Decisions ◽  
Yellow Warblers ◽  
Setophaga Petechia

Ecological traps arise when anthropogenic change creates habitat that appears suitable but when selected reduces the fitness of an individual. We evaluated whether riparian habitat within the drawdown zone of the Arrow Lakes Reservoir, British Columbia, creates an ecological trap for Yellow Warblers ( Setophaga petechia (L., 1766)) by investigating habitat preferences and the fitness consequences of habitat selection decisions. Preferences were inferred by examining how habitat variables influenced settlement order, and comparing habitat at nest sites and random locations. Males preferred to settle in territories with more riparian shrub and tree cover, higher shrub diversity, and less high canopy cover. Females built nests in taller shrubs surrounded by a greater density of shrub stems. Habitat preferences were positively associated with fitness: nest sites in taller shrubs surrounded by higher shrub-stem densities were more likely to avoid predation and fledge young, whereas territories with more riparian cover, higher shrub diversity, and less high canopy cover had higher annual productivity. We therefore found no evidence that riparian habitat affected by reservoir operations functions as an ecological trap. Current habitat selection decisions may be associated with fitness because Yellow Warblers are adapted to breeding in a heterogeneous environment subject to periodic flooding.

Yellow Warbler (Setophaga petechia)

1999 ◽  
Author(s):  
Peter E. Lowther ◽  
Claudio Celada ◽  
Nedra K. Klein ◽  
Christopher C. Rimmer ◽  
David A. Spector
Keyword(s):  
Yellow Warbler ◽  
Setophaga Petechia

Yellow Warbler (Setophaga petechia)

1999 ◽  
Author(s):  
Peter E. Lowther ◽  
Claudio Celada ◽  
Nedra K. Klein ◽  
Christopher C. Rimmer ◽  
David A. Spector
Keyword(s):  
Yellow Warbler ◽  
Setophaga Petechia

scholarly journals Phaeomelanin- and carotenoid-based pigmentation reflect oxidative status in two populations of the yellow warbler (Setophaga petechia)

2014 ◽  
Vol 68 (4) ◽  
pp. 669-680 ◽  
Author(s):  
Andrea S. Grunst ◽  
Javier Salgado-Ortiz ◽  
John T. Rotenberry ◽  
Melissa L. Grunst
Keyword(s):  
Oxidative Status ◽  
Yellow Warbler ◽  
Two Populations ◽  
Setophaga Petechia

scholarly journals Eavesdropping on Referential Yellow Warbler Alarm Calls by Red-Winged Blackbirds Is Mediated by Brood Parasitism Risk

2021 ◽  
Vol 9 ◽  
Author(s):  
Shelby L. Lawson ◽  
Janice K. Enos ◽  
Sharon A. Gill ◽  
Mark E. Hauber
Keyword(s):  
Brood Parasitism ◽  
Molothrus Ater ◽  
Agelaius Phoeniceus ◽  
Alarm Calls ◽  
Playback Experiments ◽  
Yellow Warbler ◽  
Incubation Stage ◽  
Yellow Warblers ◽  
Current Risk ◽  
Setophaga Petechia

Referential alarm calls that denote specific types of dangers are common across diverse vertebrate lineages. Different alarm calls can indicate a variety of threats, which often require specific actions to evade. Thus, to benefit from the call, listeners of referential alarm calls must be able to decode the signaled threat and respond to it in an appropriate manner. Yellow warblers (Setophaga petechia) produce referential “seet” calls that signal to conspecifics the presence of nearby obligate brood parasitic brown-headed cowbirds (Molothrus ater), which lay their eggs in the nests of other species, including yellow warblers. Our previous playback experiments have found that red-winged blackbirds (Agelaius phoeniceus), a species also parasitized by brown-headed cowbirds, eavesdrop upon and respond strongly to yellow warbler seet calls during the incubation stage of breeding with aggression similar to responses to both cowbird chatters and predator calls. To assess whether red-winged blackbird responses to seet calls vary with their own risk of brood parasitism, we presented the same playbacks during the nestling stage of breeding (when the risk of brood parasitism is lower than during incubation). As predicted, we found that blackbirds mediated their aggression toward both cowbird chatter calls and the warblers’ anti-parasitic referential alarm calls in parallel with the low current risk of brood parasitism during the nestling stage. These results further support that red-winged blackbirds flexibly respond to yellow warbler antiparasitic referential calls as a frontline defense against brood parasitism at their own nests.

scholarly journals Post-glacial expansion dynamics, not refugial isolation, shaped the genetic structure of a migratory bird, the Yellow Warbler (Setophaga petechia)

2021 ◽  
Author(s):  
Eleanor F Miller ◽  
Michela Leonardi ◽  
Robert Beyer ◽  
Mario Krapp ◽  
Marius Somveille ◽  
...  
Keyword(s):  
Population Structure ◽  
Genetic Structure ◽  
Northern Hemisphere ◽  
Alternative Hypothesis ◽  
Ice Sheets ◽  
Glacial Refugia ◽  
Glacial Refugium ◽  
Yellow Warbler ◽  
Glacial Expansion ◽  
Setophaga Petechia

During the glacial periods of the Pleistocene, swathes of the Northern Hemisphere were covered by ice sheets, tundra and permafrost leaving large areas uninhabitable for temperate and boreal species. The glacial refugia paradigm proposes that, during glaciations, species living in the Northern Hemisphere were forced southwards, forming isolated, insular populations that persisted in disjunct regions known as refugia. According to this hypothesis, as ice sheets retreated, species recolonised the continent from these glacial refugia, and the mixing of these lineages is responsible for modern patterns of genetic diversity. However, an alternative hypothesis is that complex genetic patterns could also arise simply from heterogenous post-glacial expansion dynamics, without separate refugia. Both mitochondrial and genomic data from the North American Yellow warbler (Setophaga petechia) shows the presence of an eastern and western clade, a pattern often ascribed to the presence of two refugia. Using a climate-informed spatial genetic modelling (CISGeM) framework, we were able to reconstruct past population sizes, range expansions, and likely recolonisation dynamics of this species, generating spatially and temporally explicit demographic reconstructions. The model captures the empirical genetic structure despite including only a single, large glacial refugium. The contemporary population structure observed in the data was generated during the expansion dynamics after the glaciation and is due to unbalanced rates of northward advance to the east and west linked to the melting of the icesheets. Thus, modern population structure in this species is consistent with expansion dynamics, and refugial isolation is not required to explain it, highlighting the importance of explicitly testing drivers of geographic structure.

Age-dependent costs of cowbird parasitism in Yellow Warblers (Setophaga petechia)

2013 ◽  
Vol 91 (7) ◽  
pp. 505-511 ◽  
Author(s):  
C.A. Rock ◽  
S.P. Quinlan ◽  
M. Martin ◽  
D.J. Green
Keyword(s):  
Brood Parasitism ◽  
Molothrus Ater ◽  
Breeding Cycle ◽  
Yellow Warbler ◽  
Age Related ◽  
Annual Productivity ◽  
Yellow Warblers ◽  
Cowbird Parasitism ◽  
Breeding Attempt ◽  
Setophaga Petechia

Brood parasitism by Brown-headed Cowbirds (Molothrus ater (Boddaert, 1783)) often reduces the reproductive success of their hosts. We examined whether the ability of females to avoid or mitigate the costs of brood parasitism improved with age in a population of Yellow Warblers (Setophaga petechia (L., 1766)) breeding near Revelstoke, British Columbia, between 2004 and 2011. Cowbirds parasitized 18% of Yellow Warbler nesting attempts and females rejected 24% of parasitized nests, principally by deserting the nest and initiating a new breeding attempt. We found no evidence that older females were better at avoiding parasitism or more likely to reject parasitized nests than yearlings. On average, brood parasitism reduced clutch sizes by 0.8 eggs, had no effect on nest success, but reduced the number of young fledged from successful nests by 1.3 offspring. Despite age-related improvement in some measures of breeding performance, the costs of brood parasitism at each period of the breeding cycle did not vary with age. There was, however, some evidence, that brood parasitism reduced the annual productivity (total number of young fledged) of older females less than the annual productivity of yearlings suggesting that the cumulative costs of brood parasitism varied with age.

scholarly journals A New Population of Yellow Warbler (Setophaga petechia) on Cozumel Island with a Combination of Characteristics of Mangrove (S. p. bryanti) and Golden Warblers (S. p. rufivertex)

2017 ◽  
Vol 18 (1) ◽  
Author(s):  
Barbara MacKinnon-Haskins ◽  
Alexander Dzib-Chay
Keyword(s):  
The Other ◽  
North Coast ◽  
Mangrove Habitat ◽  
Genetic Studies ◽  
Yellow Warbler ◽  
The North ◽  
Secondary Vegetation ◽  
Cozumel Island ◽  
Mangrove Vegetation ◽  
Setophaga Petechia

Cozumel Island is known to be home to the endemic Golden Warbler, Setophaga petechia rufi ertex, one of 43 subspecies of the Yellow Warbler, Setophaga petechia, while the mainland Yucatán Peninsula is home to a subspecies of Mangrove Warbler, Setophaga petechia bryanti, but historically Mangrove Warbler has been absent on the island. On 29 April 2014, we observed and photo- graphed a warbler with extensive chestnut hood resembling Mangrove Warbler at Laguna Montecristo on the north coast of Cozumel. Additional visits on 4-5 August 2014, 13-14 July 2015, and 24 October 2015, in addition to photo-documented reports from resident and visiting birders, has turned up a total of 40+ mostly male Mangrove Warblers in addition to numerous potential females both on the north coast as well as on the south coast of Cozumel. Most records are in mangrove vegetation or a mixture of mangrove with dune or secondary vegetation, with one exception. On the other hand, Golden Warblers were never found in only mangrove habitat. All males photographed had broad breast streaks, darker crowns than rest of head, and both sexes had slightly yellower lores than typical Mangrove Warblers, all being features of Golden Warbler. Genetic studies would be highly desirable to understand the origin of this apparently new population.

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