Datensatz:

Data from: The owl gull: exclusively nocturnal foraging by the Swallow-tailed Gull Creagrus furcatus in Galápagos

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Datum der Erstveröffentlichung

2025

Autor:innen

Cruz, Sebastian
Halpin, Luke R.
Proaño, Carolina B.
Anderson, David J.

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DOI (Link zu den Daten)
https://doi.org/10.5441/001/1.605
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Creative Commons Zero v1.0 Universal

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Published

Zusammenfassung

Colony-based observations indicate that Swallow-tailed Gulls Creagrus furcatus go to sea only at night. Here, we use GPS tracking technology to reveal the species' exclusively nocturnal foraging behavior at four colonies in the Galápagos Islands. All nocturnal trips proved to be foraging effort in pelagic waters 19-103 km from nests during breeding. While at sea, individuals spent approximately one-quarter of their time commuting, with half of the time dedicated to area-restricted search behavior. Three years of data from one colony indicate spatial fidelity to a general foraging area. Our research directly confirms that Swallow-tailed Gulls are the only obligate nocturnal foragers among Laridae and contributes to our understanding of nocturnal foraging strategies in tropical seabirds.

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Fachgebiet (DDC)
570 Biowissenschaften, Biologie

Schlagwörter

Creagrus furcatus, animal foraging, animal movement, animal tracking, GPS, GPS logger, seabirds, spatial fidelity, Swallow-tailed Gull

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Zeitschriftenartikel
The owl gull : exclusively nocturnal foraging by the Swallow-tailed Gull Creagrus furcatus in Galápagos
(2025) Cruz, Sebastian M.; Halpin, Luke R.; Proano, Carolina; Anderson, David J.; Wikelski, Martin
Erschienen in: Marine Ornithology. African Seabird Group, the Pacific Seabird Group, the Australasian Seabird Group, Seabird Group (U.K.), and the Dutch Seabird Group. 2025, 53(1), S. 67-73. ISSN 1018-3337. eISSN 2074-1235. Verfügbar unter: doi: 10.5038/2074-1235.53.1.1626
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ISO 690CRUZ, Sebastian, Luke R. HALPIN, Carolina B. PROAÑO, David J. ANDERSON, Martin WIKELSKI, 2025. Data from: The owl gull: exclusively nocturnal foraging by the Swallow-tailed Gull Creagrus furcatus in Galápagos
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