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Nest attentiveness drives nest predation in arctic sandpipers

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  • Nicolas Meyer, Université de Bourgogne Franche-Comté, Groupe de Recherche en Ecologie Arctique
  • ,
  • Loïc Bollache, Université de Bourgogne Franche-Comté, Groupe de Recherche en Ecologie Arctique
  • ,
  • François Xavier Dechaume-Moncharmont, Universite Claude Bernard Lyon 1
  • ,
  • Jérôme Moreau, Groupe de Recherche en Ecologie Arctique, Université de Bourgogne Franche-Comté
  • ,
  • Eve Afonso, Université de Bourgogne Franche-Comté
  • ,
  • Anders Angerbjörn, Stockholm University
  • ,
  • Joël Bêty, Universite du Quebec a Rimouski
  • ,
  • Dorothée Ehrich, UiT The Arctic University of Norway
  • ,
  • Vladimir Gilg, Groupe de Recherche en Ecologie Arctique
  • ,
  • Marie Andrée Giroux, Université de Moncton
  • ,
  • Jannik Hansen
  • Richard B. Lanctot, United States Fish & Wildlife Service
  • ,
  • Johannes Lang, Groupe de Recherche en Ecologie Arctique, Justus Liebig University Giessen
  • ,
  • Nicolas Lecomte, Université de Moncton
  • ,
  • Laura McKinnon, York Univ. Glendon Campus
  • ,
  • Jeroen Reneerkens, University of Groningen, Utrecht University
  • ,
  • Sarah T. Saalfeld, United States Fish & Wildlife Service
  • ,
  • Brigitte Sabard, Groupe de Recherche en Ecologie Arctique
  • ,
  • Niels M. Schmidt
  • Benoît Sittler, Groupe de Recherche en Ecologie Arctique, University of Freiburg
  • ,
  • Paul Smith, Environment Canada
  • ,
  • Aleksandr Sokolov, Russian Academy of Sciences
  • ,
  • Vasiliy Sokolov, Russian Academy of Sciences
  • ,
  • Natalia Sokolova, Russian Academy of Sciences
  • ,
  • Rob van Bemmelen, Bureau Waardenburg, Wageningen Marine Research
  • ,
  • Olivier Gilg, Université de Bourgogne Franche-Comté

Most birds incubate their eggs to allow embryo development. This behaviour limits the ability of adults to perform other activities. Hence, incubating adults trade off incubation and nest protection with foraging to meet their own needs. Parents can either cooperate to sustain this tradeoff or incubate alone. The main cause of reproductive failure at this reproductive stage is predation and adults reduce this risk by keeping the nest location secret. Arctic sandpipers are interesting biological models to investigate parental care evolution as they may use several parental care strategies. The three main incubation strategies include both parents sharing incubation duties (‘biparental’), one parent incubating alone (‘uniparental’), or a flexible strategy with both uniparental and biparental incubation within a population (‘mixed’). By monitoring the incubation behaviour in 714 nests of seven sandpiper species across 12 arctic sites, we studied the relationship between incubation strategy and nest predation. First, we described how the frequency of incubation recesses (NR), their mean duration (MDR), and the daily total duration of recesses (TDR) vary among strategies. Then, we examined how the relationship between the daily predation rate and these components of incubation behaviour varies across strategies using two complementary survival analysis. For uniparental and biparental species, the daily predation rate increased with the daily total duration of recesses and with the mean duration of recesses. In contrast, daily predation rate increased with the daily number of recesses for biparental species only. These patterns may be attributed to two independent mechanisms: cryptic incubating adults are more difficult to locate than unattended nests and adults departing the nest or feeding close to the nest can draw predators’ attention. Our results demonstrate that incubation behaviour as mediated by incubation strategy has important consequences for sandpipers’ reproductive success.

OriginalsprogEngelsk
TidsskriftOikos
Vol/bind129
Nummer10
Sider (fra-til)1481-1492
Antal sider12
ISSN0030-1299
DOI
StatusUdgivet - 2020

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