The Autumn Passage of Yellow-Bellied Flycatchers in South Texas

Winker, Kevin; Rappole, John H.

doi:10.2307/1369225

Cited by 4 publications

(5 citation statements)

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“…Several factors, such as dominance and condition of a bird can affect the expression of migratory behavior (Gauthreaux 1982, Ketterson and Nolan 1983, Terrill 1990). For instance, migrant populations are often segregated into sex or age classes that migrate differentially (Gauthreaux 1982, Ketterson and Nolan 1983, Winker and Rappole 1992, Cristol et al 1999). In addition, the same individual can exhibit both migratory and sedentary behaviors at different times in its life, as reported in field and captivity studies for song sparrows Melospiza melodia and other species (Nice 1937, Fretwell 1972, Schwabl and Silverin 1990).…”

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confidence: 99%

An integrative framework for understanding the origin and evolution of avian migration

2003

Journal of Avian Biology

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confidence: 99%

An integrative framework for understanding the origin and evolution of avian migration

2003

Journal of Avian Biology

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“…The low numbers in the coefficients of variation for climatic variables at the beginning of the season suggest that the first individuals to arrive during the winter prefer certain climatic conditions, possibly because they have an advantage in acquiring better areas in winter (Morton ; Winker and Rappole ; Norris et al. ).…”

Section: Discussionmentioning

confidence: 99%

“…Indeed, for most of the species studied, the selection of sites during the winter was not random with respect to climatic conditions, suggesting the existence of preferred winter areas (Hutto 1985) and differential establishment of these areas over time (Fretwell 1972). The low numbers in the coefficients of variation for climatic variables at the beginning of the season suggest that the first individuals to arrive during the winter prefer certain climatic conditions, possibly because they have an advantage in acquiring better areas in winter (Morton 1976;Winker and Rappole 1992;Norris et al 2004).…”

Section: Discussionmentioning

confidence: 99%

“…Research on specific competition during the winter has shown that the first individuals arriving to wintering ranges tend to occupy optimal sites (Morton ; Winker and Rappole ; Norris et al. ) and, because of the high turnover of individuals, such sites remain occupied all winter (Holmes et al.…”

Section: Introductionmentioning

confidence: 99%

“…Research on specific competition during the winter has shown that the first individuals arriving to wintering ranges tend to occupy optimal sites (Morton 1976;Winker and Rappole 1992;Norris et al 2004) and, because of the high turnover of individuals, such sites remain occupied all winter (Holmes et al 1989;Stutchbury 1994). We therefore expect that, during the early winter months, individuals select and occupy sites that we assume are more favorable and which, at the macroscale, would be represented by those sites presenting optimal climates for the species, that is, "the hypothesis of selective establishment."…”

Section: Introductionmentioning

confidence: 99%

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Climatic patterns in the establishment of wintering areas by North American migratory birds

Pérez-Moreno

Martínez‐Meyer²,

Mainero

et al. 2016

Ecology and Evolution

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Long‐distance migration in birds is relatively well studied in nature; however, one aspect of this phenomenon that remains poorly understood is the pattern of distribution presented by species during arrival to and establishment of wintering areas. Some studies suggest that the selection of areas in winter is somehow determined by climate, given its influence on both the distribution of bird species and their resources. We analyzed whether different migrant passerine species of North America present climatic preferences during arrival to and departure from their wintering areas. We used ecological niche modeling to generate monthly potential climatic distributions for 13 migratory bird species during the winter season by combining the locations recorded per month with four environmental layers. We calculated monthly coefficients of climate variation and then compared two GLM (generalized linear models), evaluated with the AIC (Akaike information criterion), to describe how these coefficients varied over the course of the season, as a measure of the patterns of establishment in the wintering areas. For 11 species, the sites show nonlinear patterns of variation in climatic preferences, with low coefficients of variation at the beginning and end of the season and higher values found in the intermediate months. The remaining two species analyzed showed a different climatic pattern of selective establishment of wintering areas, probably due to taxonomic discrepancy, which would affect their modeled winter distribution. Patterns of establishment of wintering areas in the species showed a climatic preference at the macroscale, suggesting that individuals of several species actively select wintering areas that meet specific climatic conditions. This probably gives them an advantage over the winter and during the return to breeding areas. As these areas become full of migrants, alternative suboptimal sites are occupied. Nonrandom winter area selection may also have consequences for the conservation of migratory bird species, particularly under a scenario of climate change.

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On the Origin of Species Through Heteropatric Differentiation: A Review and a Model of Speciation in Migratory Animals

Winker¹

2010

Ornithological Monographs

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JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.. University of California Press and AmericanOrnithologists' Union are collaborating with JSTOR to digitize, preserve and extend access to Ornithological Monographs.Abstract.-Differentiation and speciation without extended isolation appear to be common among migratory animals. historical oversight of this is probably due to temporal distortion in distribution maps and a tendency to consider that lineages had different historical traits, such as being sedentary or much less mobile. Mobility among cyclic migrants makes population isolation difficult, and diminished levels of intraspecific differentiation occur in avian migrants (i term this "Montgomery's rule"). Nevertheless, many lineages have differentiated despite increased mobility and a high propensity for gene flow, conditions that speciation theory has not addressed adequately. Populations of seasonal migrants usually occur in allopatry and sympatry during a migratory cycle, and this distributional pattern (heteropatry) is the focus of a model empirically developed to explain differentiation in migratory lineages. Divergence arises through disruptive selection from resource competition and heterogeneously distributed cyclic resources. heteropatric speciation is a type of ecological speciation in which reproductive isolation increases between populations as a byproduct of adaptation to different environments that enhances breeding allopatry and allochrony despite degrees of sympatry that occur during the nonbreeding period in migration cycles. Mating or pair bonding in nonbreeding areas is rare. Patterns such as leapfrog migration and limited morphological divergence suggest that differentiation is driven by these ecological factors rather than by sexual selection or nontemporal changes in the resource base itself, although the additional presence of either of the latter would have additive divergent effects. Migratory lineages provide a largely neglected series of natural experiments in speciation in which to test predictions stemming from this model and others focusing on ecological speciation. Ornithological Monographs, Number 69, pages 1-30. iSBN: 978-0-943610-88-7.Resumen.-la diferenciación y la especiación en ausencia de aislamiento extendido parece ser común entre los animales migratorios. es probable que el haber pasado por alto este patrón históricamente se deba a la distorsión temporal de los mapas de distribución y a una tendencia a considerar que los linajes presentaban rasgos distintos anteriormente, como ser sedentarios o mucho menos móviles. la movilidad de los migrantes cíclicos hace que el aislamiento de las poblaciones sea difícil y existen niveles reducidos de diferenciación intraspecífica en las aves migrant...

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The Autumn Passage of Yellow-Bellied Flycatchers in South Texas

Cited by 4 publications

References 8 publications

An integrative framework for understanding the origin and evolution of avian migration

An integrative framework for understanding the origin and evolution of avian migration

Climatic patterns in the establishment of wintering areas by North American migratory birds

On the Origin of Species Through Heteropatric Differentiation: A Review and a Model of Speciation in Migratory Animals

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