NEST SITE SELECTION AND NESTING SUCCESS IN SALTMARSH BREEDING SPARROWS: THE IMPORTANCE OF NEST HABITAT, TIMING, AND STUDY SITE DIFFERENCES

@inproceedings{Gjerdrum2005NESTSS,
  title={NEST SITE SELECTION AND NESTING SUCCESS IN SALTMARSH BREEDING SPARROWS: THE IMPORTANCE OF NEST HABITAT, TIMING, AND STUDY SITE DIFFERENCES},
  author={Carina Gjerdrum and Chris S. Elphick and Margaret A. Rubega},
  year={2005}
}
Abstract We examined nest-site selection and nesting success in Saltmarsh Sharp-tailed (Ammodramus caudacutus) and Seaside Sparrows (A. maritimus), at seven sites in Connecticut. We found 160 Saltmarsh Sharp-tailed Sparrow nests and 23 Seaside Sparrow nests, and compared characteristics of their locations to each other and to random locations. We tracked success of all nests, quantified nest productivity and causes of nest losses, and tested for habitat differences between successful and… 
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TLDR
Evidence that Saltmarsh Sparrows face a trade-off between flood-risk and ectoparasite exposure in nest-site selection and nest initiation is examined, and results suggest that selecting flood-prone sites has benefits, by reducing exposure to ecto-parasites, in addition to the often severe costs of flooding.
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TLDR
The potential for flexible sex differences in nest-site selection is highlighted, as Rushbirds seem to flexibly adjust their nest location in response to high predation risk, building their nests under structures built by other birds when breeding colonies of herons and gulls are present.
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It is suggested that spatial variation in the relationship between nest habitat and nest outcome may favor flexible nest-site preferences in this population of Song Sparrows.
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