The roles of temperature, nest predators and information parasites for geographical variation in egg covering behaviour of tits (Paridae).
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The roles of temperature, nest predators and information parasites for geographical variation in egg covering behaviour of tits (Paridae).

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The roles of temperature, nest predators and information parasites for geographical variation in egg covering behaviour of tits (Paridae).

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dc.contributor.author Loukola, Olli J.
dc.contributor.author Adamik, Peter
dc.contributor.author Adriaensen, Frank
dc.contributor.author Barba Campos, Emilio
dc.contributor.author Doligez, Blandine
dc.contributor.author Flensted-Jensen, Einar
dc.contributor.author Eeva, Tapio
dc.contributor.author Kivelä, Sami M.
dc.contributor.author Laaksonen, Toni
dc.contributor.author Morosinotto, Chiara
dc.contributor.author Mänd, Raivo
dc.contributor.author Niemelä, Petri T.
dc.contributor.author Remes, Vladimir
dc.contributor.author Samplonius, Jelmer M.
dc.contributor.author Sebastiano, Manrico
dc.contributor.author Senar, Juan Carlos
dc.contributor.author Slagsvold, Tore
dc.contributor.author Sorace, Alberto
dc.contributor.author Tschirren, Barbara
dc.contributor.author Török, János
dc.contributor.author Forsman, Jukka T.
dc.date.accessioned 2021-04-26T12:26:37Z
dc.date.available 2021-04-26T12:26:37Z
dc.date.issued 2020
dc.identifier.uri https://hdl.handle.net/10550/78916
dc.description.abstract Aim Nest building is widespread among animals. Nests may provide receptacles for eggs, developing offspring and the parents, and protect them from adverse environmental conditions. Nests may also indicate the quality of the territory and its owner and can be considered as an extended phenotype of its builder(s). Nests may, thus, function as a sexual and social signal. Here, we examined ecological and abiotic factors¿temperature, nest predation and interspecific information utilization¿shaping geographical variation in a specific nest structure¿hair and feather cover of eggs¿and its function as an extended phenotype before incubation in great (Parus major) and blue tits (Cyanistes caeruleus) across Europe. We also tested whether egg covering is associated with reproductive success of great tits. Location Fourteen different study sites and 28 populations across Europe. Taxon Parus major, Cyanistes caeruleus. Methods We recorded clutch coverage estimates and collected egg covering nest material from the tit nests. We also measured nest specific breeding parameters and phenotypic measurements on adults. We tested whether mean spring temperatures, nest predation rates and flycatcher (Ficedula spp) densities in the study areas explain the large‐scale geographical variation of clutch coverage and reproductive success of tits. Results The degree of egg coverage of great tits increased with lower mean spring temperature, higher nest predation rate and higher flycatcher density. We did not find egg covering of blue tits to be associated with any of the ecological or abiotic factors. Moreover, egg covering of great tits was not associated with reproductive success in our cross‐sectional data, yet a rigorous assessment of fitness effects would require long‐term data. Main conclusions Our findings suggest that, in great tits, egg covering may simultaneously provide thermal insulation against cold temperatures during egg‐laying in spring and also represent a counter‐adaptation to reduce information parasitism by flycatchers and nest predation. Hence, geographical variation in interspecific interactions, and consequently in co‐evolutionary processes, may affect the evolution of nest characteristics besides environmental conditions.
dc.language.iso eng
dc.relation.ispartof Journal of Biogeography, 2020, vol. 47, num. 7, p. 1482-1493
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Loukola, Olli J. Adamik, Peter Adriaensen, Frank Barba Campos, Emilio Doligez, Blandine Flensted-Jensen, Einar Eeva, Tapio Kivelä, Sami M. Laaksonen, Toni Morosinotto, Chiara Mänd, Raivo Niemelä, Petri T. Remes, Vladimir Samplonius, Jelmer M. Sebastiano, Manrico Senar, Juan Carlos Slagsvold, Tore Sorace, Alberto Tschirren, Barbara Török, János Forsman, Jukka T. 2020 The roles of temperature, nest predators and information parasites for geographical variation in egg covering behaviour of tits (Paridae). Journal of Biogeography 47 7 1482 1493
dc.subject Ocells
dc.title The roles of temperature, nest predators and information parasites for geographical variation in egg covering behaviour of tits (Paridae).
dc.type info:eu-repo/semantics/article
dc.date.updated 2021-04-26T12:26:38Z
dc.identifier.doi https://doi.org/10.1111/jbi.13830
dc.identifier.idgrec 140546

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