Lunar cycles in diel prey migrations exert a stronger effect on the diving of juveniles than adult Galapagos fur seals

Horning M, Trillmich F (1999)
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES 266(1424): 1127-1132.

Download
Es wurde kein Volltext hochgeladen. Nur Publikationsnachweis!
Zeitschriftenaufsatz | Veröffentlicht | Englisch
Autor
;
Abstract / Bemerkung
In our study of the development of diving in Galapagos fur seals, we analysed changes in diving activity and body mass trends over the lunar cycle. Based on previously observed lunar cycles in colony attendance patterns, we hypothesized a greater impact of prey migrations of deep scattering layer organisms on younger fur seals. Using electronic dive recorders, we determined that seals dived less and deeper on moonlit nights than at new moon, and incurred body mass losses. These changes in foraging over the lunar cycle correlate with the suppression of the vertical migration of prey by lunar light. All effects were more pronounced in juveniles than adult females, with greater relative mass loss during full moon, which must (i) negatively affect long-term juvenile growth rates, (ii) lengthen periods of maternal dependence, and (iii) contribute to the lowest reproductive rate reported for seals. This underlines the importance of studying ontogeny in order to understand life histories, and for determining the susceptibility of animal populations to fluctuations in food availability.
Erscheinungsjahr
Zeitschriftentitel
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES
Band
266
Zeitschriftennummer
1424
Seite
1127-1132
ISSN
eISSN
PUB-ID

Zitieren

Horning M, Trillmich F. Lunar cycles in diel prey migrations exert a stronger effect on the diving of juveniles than adult Galapagos fur seals. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES. 1999;266(1424):1127-1132.
Horning, M., & Trillmich, F. (1999). Lunar cycles in diel prey migrations exert a stronger effect on the diving of juveniles than adult Galapagos fur seals. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES, 266(1424), 1127-1132. doi:10.1098/rspb.1999.0753
Horning, M., and Trillmich, F. (1999). Lunar cycles in diel prey migrations exert a stronger effect on the diving of juveniles than adult Galapagos fur seals. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES 266, 1127-1132.
Horning, M., & Trillmich, F., 1999. Lunar cycles in diel prey migrations exert a stronger effect on the diving of juveniles than adult Galapagos fur seals. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES, 266(1424), p 1127-1132.
M. Horning and F. Trillmich, “Lunar cycles in diel prey migrations exert a stronger effect on the diving of juveniles than adult Galapagos fur seals”, PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES, vol. 266, 1999, pp. 1127-1132.
Horning, M., Trillmich, F.: Lunar cycles in diel prey migrations exert a stronger effect on the diving of juveniles than adult Galapagos fur seals. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES. 266, 1127-1132 (1999).
Horning, M, and Trillmich, Fritz. “Lunar cycles in diel prey migrations exert a stronger effect on the diving of juveniles than adult Galapagos fur seals”. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES 266.1424 (1999): 1127-1132.

6 Zitationen in Europe PMC

Daten bereitgestellt von Europe PubMed Central.

At-sea behavior varies with lunar phase in a nocturnal pelagic seabird, the swallow-tailed gull.
Cruz SM, Hooten M, Huyvaert KP, Proano CB, Anderson DJ, Afanasyev V, Wikelski M., PLoS ONE 8(2), 2013
PMID: 23468889
Flexible foraging movements of leatherback turtles across the North Atlantic Ocean.
Hays GC, Hobson VJ, Metcalfe JD, Righton D, Sims DW., Ecology 87(10), 2006
PMID: 17089672

Export

Markieren/ Markierung löschen
Markierte Publikationen

Open Data PUB

Web of Science

Dieser Datensatz im Web of Science®

Quellen

PMID: 10406130
PubMed | Europe PMC

Suchen in

Google Scholar