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Arrival Timing and Seasonal Reproductive Performance in a Long-Distance Migratory Landbird

Smith, Robert J. ; Moore, Frank R.

Behavioral ecology and sociobiology, 2005-01, Vol.57 (3), p.231-239 [Periódico revisado por pares]

Heidelberg: Springer-Verlag

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Título:
Arrival Timing and Seasonal Reproductive Performance in a Long-Distance Migratory Landbird
Autor: Smith, Robert J. ; Moore, Frank R.
Assuntos: Animal and plant ecology ; Animal migration behavior ; Animal reproduction ; Animal, plant and microbial ecology ; Animals ; Autoecology ; Aves ; Aviculture ; Biological and medical sciences ; Birds ; Breeding ; Breeding seasons ; Breeding sites ; Eggs ; Female animals ; Fundamental and applied biological sciences. Psychology ; Male animals ; Mating behavior ; Setophaga ruticilla ; Vegetation ; Vertebrata
É parte de: Behavioral ecology and sociobiology, 2005-01, Vol.57 (3), p.231-239
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
Descrição: The date when a landbird migrant arrives on its breeding grounds may have reproductive consequences. Generally, early arriving individuals begin breeding earlier and consequently experience greater seasonal reproductive performance. Here, we describe relationships between arrival timing and seasonal reproductive performance in the American redstart (Setophaga ruticilla), a long-distance passerine migrant, arriving at northerly breeding grounds in Michigan's eastern Upper Peninsula. Evidence suggests that both males and females benefited from early arrival at the breeding grounds. Early males appeared to settle on higher quality territories and hatched nestlings sooner than later arrivals. Early females began their clutches early, produced heavier nestlings and possibly laid more eggs than later arrivals. Larger clutches and heavier offspring increase the likelihood of offspring recruiting into the breeding population. The findings of this study point to fitness consequences arising from when a bird arrives at its breeding grounds. These results also have implications for understanding how events occurring during spring migration influence reproductive performance as migratory delays likely influence arrival timing.
Editor: Heidelberg: Springer-Verlag
Idioma: Inglês

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Arrival Timing and Seasonal Reproductive Performance in a Long-Distance Migratory Landbird

Smith, Robert J. ; Moore, Frank R.

Heidelberg: Springer-Verlag

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