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GPS tracking during parental care does not affect early offspring development in lesser black-backed gulls
Kavelaars, M.M.; Stienen, E.; Matheve, H.; Buijs, R.-J.; Lens, L.; Müller, W. (2018). GPS tracking during parental care does not affect early offspring development in lesser black-backed gulls. Mar. Biol. (Berl.) 165(5): 87. https://hdl.handle.net/10.1007/s00227-018-3347-6
In: Marine Biology. Springer: Heidelberg; Berlin. ISSN 0025-3162; e-ISSN 1432-1793, more
Peer reviewed article  

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Keyword
    Marine

Authors  Top 
  • Buijs, R.-J.
  • Lens, L., more
  • Müller, W., more

Abstract
    Tracking devices are increasingly used to monitor individual movement patterns continuously and in high resolution. However, carrying a device could potentially compromise an individual’s physiology or behaviour, thereby making tracking data unreliable for detailed behavioural measurements. To this end, we assessed the possible consequences of the application of GPS devices on offspring development in an opportunistic seabird species, the lesser black-backed gull (Larus fuscus), by comparing the growth and survival of nestlings of which none, one or both parents were equipped with a GPS device. We found that the developmental trajectories of the nestlings were not affected, and there were no differences in skeletal size and body mass at the fledging stage. A lack of negative effects on offspring development strongly suggests that the parental behaviour, and thus likely the foraging behaviour, did not differ between tagged and non-tagged individuals. The evidence that GPS data can be used to reliably study parental care, as well as other aspects of the bird’s behaviour, opens up new possibilities to study behavioural and evolutionary ecological questions in ever-increasing resolution.

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