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How do resource distribution and taxonomy affect the use of dual foraging in seabirds? A review

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  • Jessica A Phillips
  • Tim Guilford
  • Annette L Fayet

Abstract

In many seabird species, parents feeding young switch between short and long foraging excursions in a strategy known as “dual foraging.” To investigate whether habitat quality near breeding colonies drives the use of dual foraging, we conducted a review of the seabird literature, compiling the results of 102 studies which identified dual-foraging in 50 species across nine families from all six seabird orders. We estimated the mean distance from the colony of each species’ short and long foraging trips and obtained remote-sensed data on chlorophyll-a concentrations within the radius of both short and long trips around each colony. We then assessed, for each seabird family, the relationship between the use of dual foraging strategies and the difference in the quality of foraging locations between short- and long-distance foraging trips. We found that the probability of dual foraging grew with increasing differences in the quality of foraging locations available during short- and long-distance trips. We also found that when controlling for differences in habitat quality, albatrosses and penguins were less likely to use dual foraging than Procellariidae, which in turn were less likely to use dual foraging than Sulids. This study helps clarify how environmental conditions and taxon-specific characteristics influence seabird foraging behavior.

Suggested Citation

  • Jessica A Phillips & Tim Guilford & Annette L Fayet, 2023. "How do resource distribution and taxonomy affect the use of dual foraging in seabirds? A review," Behavioral Ecology, International Society for Behavioral Ecology, vol. 34(5), pages 769-779.
  • Handle: RePEc:oup:beheco:v:34:y:2023:i:5:p:769-779.
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    File URL: http://hdl.handle.net/10.1093/beheco/arad052
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    References listed on IDEAS

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    1. Yan Ropert-Coudert & Rory P. Wilson & Francis Daunt & Akiko Kato, 2004. "Patterns of energy acquisition by a central place forager: benefits of alternating short and long foraging trips," Behavioral Ecology, International Society for Behavioral Ecology, vol. 15(5), pages 824-830, September.
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