Activité diurne et crépusculaire pendant la migration automnale pour quatre espèces d'insectivores aériens

Tara L. Imlay, Philip D. Taylor

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

3 Citas (Scopus)

Resumen

Most migratory birds, particularly passerines or songbirds, migrate at night. However, diurnal migration has many benefits, including the ability to use a fly-and-forage migration strategy that allows an individual to refuel while migrating. Despite these benefits, very little research has been undertaken on diurnal migrants, including aerial foragers, who can refuel on the wing. In this study, we use the Motus Wildlife Tracking System to examine the timing of Bank Swallow (Riparia riparia), Barn Swallow (Hirundo rustica), Cliff Swallow (Petrochelidon pyrrhonota), and Tree Swallow (Tachycineta bicolor) movements during fall migration. Using these data, we confirm the "common knowledge" that these species of aerial foragers are diurnal migrants. During fall migration, 88.2% detections across all species were during the day, and the remaining detections were during civil twilight (range of sun elevation angles: -5.4° to 0°). Most of the detections during the day were consistent with migratory movement, and most detections during civil twilight were consistent with movements to and from communal roosts. Collectively, these results indicate that during fall migration, these 4 swallow species migrate during the day and, like other aerial foragers, may use a fly-and-forage migration strategy.

Título traducido de la contribuciónDiurnal and crepuscular activity during fall migration for four species of aerial foragers
Idioma originalFrench
Páginas (desde-hasta)159-164
Número de páginas6
PublicaciónWilson Journal of Ornithology
Volumen132
N.º1
DOI
EstadoPublished - mar. 1 2020
Publicado de forma externa

Nota bibliográfica

Funding Information:
Many thanks to P. Thomas at Environment and Climate Change Canada for the purchase of Lotek nanotags used in this study, to the field assistants that aided with data collection, and to Birds Canada for managing the Motus Wildlife Tracking System. Thanks also to Y. Aubry, D. Brinker, N. Cooper, L. DeGroote, M. Ford, A. Gonzalez, T. Keyes, P. Loring, D. McAuley, D. McNaughton, L. Niles, K. O’Brien, J. Paquet, A. Patterson, N. Pau, M. Seymour, A. Smith, and H. Wheeler for setting up and maintaining the Motus receiving stations throughout North and South America that detected the swallows we tagged. Funding for this work was provided by Environment and Climate Change Canada and the New Brunswick Wildlife Trust Fund. All field protocols were approved by the Acadia University Animal Care Committee (protocol # 06-18).

Publisher Copyright:
© 2020 Wilson Ornithological Society. All rights reserved.

ASJC Scopus Subject Areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Animal Science and Zoology

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