Spatial variation in breeding habitat selection by Cerulean Warblers (<i>Setophaga cerulea</i>) throughout the Appalachian Mountains

Boves, Than J.; Buehler, David A.; Sheehan, James; Wood, Petra Bohall; Rodewald, Amanda D.; Larkin, Jeffrey L.; Keyser, Patrick D.; Newell, Felicity L.; Evans, Andrea; George, Gregory A.; Wigley, T. Bently

doi:10.1525/auk.2012.12104

Cited by 36 publications

(48 citation statements)

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“…(Barg et al ), although territory centers are not dominated by Carya spp. in the central Appalachian Mountains (Boves et al ) and Carya spp. are used as available for nest sites (Newell and Rodewald , Boves et al ).…”

Section: Discussionmentioning

confidence: 99%

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Foraging behavior of Cerulean Warblers during the breeding and non-breeding seasons: evidence for the breeding currency hypothesis

et al. 2014

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ABSTRACT. Birds require additional resources for raising young, and the breeding currency hypothesis predicts that insectivorous species exploit large soft-bodied prey during the breeding season, but shift to small, likely hardbodied, prey during the non-breeding season. To test this hypothesis, we examined prey use by Cerulean Warblers (Setophaga cerulea), foliage-gleaning Nearctic-Neotropical migrants, during the breeding and non-breeding seasons. We collected data on foraging behavior during the breeding season (including observations of prey items fed to young) in upland mixed-oak forest in southeastern Ohio in 2009 and 2010 and, during the non-breeding season, in shade coffee in the Cordillera de Merida, Venezuela, in 2008-2009. Cerulean Warblers captured 7% more large prey (visible prey extending beyond the bill) during the breeding than the non-breeding season, but foraged at similar rates during both seasons. Large, soft-bodied prey appeared to be especially important for feeding young. We found that adults delivered large prey on >50% of provisioning visits to nests and 69% of identifiable large prey fed to nestlings were greenish larvae (likely Lepidoptera or caterpillars) that camouflage against leaves where they would tend to be captured by foliage-gleaning birds. Availability of specific taxa appeared to influence tree species foraging preferences. As reported by other researchers, we found that Cerulean Warblers selected trees in the genus Carya for foraging and our examination of caterpillar counts from the central Appalachian Mountains (Butler and Strazanac 2000) showed that caterpillars with greenish coloration, especially Baileya larvae, may be almost twice as abundant on Carya than Quercus. Our results provide evidence for the breeding currency hypothesis, and highlight the importance of caterpillars to a foliage-gleaning migrant warbler of conservation concern.RESUMEN. Comportamiento forrajero del Chipe Cerúleo durante la temporada reproductiva y no reproductiva: evidencia de la hipótesis de divisa de crianza Las aves requieren recursos adicionales a fin de criar a los pichones, y la hipótesis de divisa de crianza predice que las especies insectívoras explotan presas grandes de cuerpo blando durante la temporada reproductiva, pero que cambian a presas pequeñas de cuerpo duro en la temporada no reproductiva. A fin de poner a prueba esta hipótesis, examinamos el uso de presas por parte del Chipe Cerúleo (Setophaga cerulea), forrajeadores de follaje y migrantes Neártico-Neotrópico, durante la temporada reproductiva y no reproductiva. Colectamos datos del comportamiento forrajero durante la temporada reproductiva (incluyendo observaciones de presas entregadas a los pichones) en un bosque de tierras altas compuesto de varias especies de roble en el sur este de Ohio en 2009 y 2010 y, durante la temporada no reproductiva, en una plantación sombreada de café en la Cordillera de Mérida, Venezuela, en [2008][2009]. Los Chipes Cerúleos capturaron presas un 7% mas grandes (presa visible extendiéndose más ...

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Section: Discussionmentioning

confidence: 99%

“…in the central Appalachian Mountains (Boves et al ) and Carya spp. are used as available for nest sites (Newell and Rodewald , Boves et al ). Several other foliage‐gleaning species also select Carya spp.…”

Section: Discussionmentioning

confidence: 99%

Foraging behavior of Cerulean Warblers during the breeding and non-breeding seasons: evidence for the breeding currency hypothesis

et al. 2014

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“…High regional variation in selection for individual habitat components was clearly evident from generally large effect sizes of region on parameter estimates from our DHS models. We expected some variability because of differences in measured habitat covariates among regions (e.g., Boves et al, ; Collins, ). In a study of much more limited spatial extent, Collins () found significant differences in compositional and structural features at occupied locations for nineteen species of wood warbler in two geographically distinct study areas (Maine and Minnesota, USA).…”

Section: Discussionmentioning

confidence: 99%

Differential habitat selection in boreal songbirds influences estimates of population size and distribution

Crosby

Bayne

Cumming

et al. 2019

Diversity and Distributions

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Aim Most large‐scale species distribution models assume spatially constant habitat selection throughout a species' geographic range. However, there is evidence this assumption may not be valid for a number of boreal bird species, which could lead to biased predictions of density and distribution in range‐wide models. Our goal was to test for and quantify differential habitat selection (DHS) in songbirds among regions of the Canadian boreal forest. Location Northern Alberta, western Ontario and southern Quebec, Canada. Methods We used hierarchical analysis of covariance models with region‐specific parameter estimates to test for differential selection of forest attributes among three regions for six boreal bird species. We used the results of these models to quantify intraspecific niche overlap between regions and compared posterior predictive accuracy to models that did not account for DHS. Results We found a generally large standardized effect size (median effect size = 1.674) of region on selection of specific habitat variables for all six species, although there was high variability among species, variables and regional comparisons. The proportion of niche overlap between regions was generally low (mean overlap = 0.309 for all pairwise comparisons), with no spatial pattern to the overlap. Models accounting for DHS had significantly higher posterior predictive accuracy according to the Watanabe–Akaike information criterion. Main Conclusions We found strong evidence for DHS among regions for six boreal songbird species in individual habitat attributes and overall niche space. The higher predictive accuracy of our DHS models suggests that failure to account for spatial variability in habitat selection can lead to biased estimates of density and spatial distribution. Models that did not account for DHS overestimated density relative to DHS models. We conclude that large‐scale species distribution models should account for regional variation in habitat selection in order to obtain accurate estimates of population size and distribution.

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“…For example, the Cerulean Warbler (Setophaga cerulea) often has been characterized as a "forest interior" species. Yet, recent evidence suggests that it is frequently associated with closely spaced, variously sized canopy gaps (i.e., edge) (Weakland and Wood 2005;Perkins 2006;Bakermans and Rodewald 2009;McElhone et al 2011;Boves et al 2013;Perkins and Wood 2014) caused by tree deaths (more frequent in floodplains), blowdowns (more frequent on steep slopes and ridge tops), or deliberate forestry practices such as shelterwood harvest (Carpenter et al 2011; S. Stoleson, USDA Forest Service personal communication). Thus, when viewed at the within-territory scale, it may actually be more of a forest interior-edge species, suggesting previously unconsidered management approaches (cf.…”

Section: Edges and Ecotones: Resolution Effects On Interpretation Of mentioning

confidence: 99%

Improving GIS-based Wildlife-Habitat Analysis

Keller¹,

Smith²

2014

SpringerBriefs in Ecology

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Spatial variation in breeding habitat selection by Cerulean Warblers (Setophaga cerulea) throughout the Appalachian Mountains

Cited by 36 publications

References 40 publications

Foraging behavior of Cerulean Warblers during the breeding and non-breeding seasons: evidence for the breeding currency hypothesis

Foraging behavior of Cerulean Warblers during the breeding and non-breeding seasons: evidence for the breeding currency hypothesis

Differential habitat selection in boreal songbirds influences estimates of population size and distribution

Improving GIS-based Wildlife-Habitat Analysis

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