Density effects on life-history traits in a wild population of the great tit Parus major: analyses of long-term data with GIS techniques

The Journal of Animal Ecology
Teddy Albert WilkinB C Sheldon

Abstract

1. Population density often has strong effects on the population dynamics and reproductive processes of territorial animals. However, most estimates of density-dependent effects use the number of breeding pairs per unit area in a given season and look for correlations across seasons, a technique that assigns the same density score to each breeding pair, irrespective of local spatial variation. 2. In this study, we employed GIS techniques to estimate individual breeding densities for great tits breeding in Wytham Woods UK, between 1965 and 1996. We then used linear mixed modelling to analyse the effect of density on reproductive processes. 3. The areas of Thiessen polygons formed around occupied nestboxes were used to approximate territory size (necessarily inverse of breeding density). There were significant, independent and positive relationships between clutch size, fledging mass and the number of offspring recruited to the population, and territory size (all P < 0.001), but no effect of territory size on lay-date or egg mass. 4. Thiessen polygons are contiguous and cover all of the available area. Therefore, at low nest densities territory polygons were excessively oversized. Using a novel procedure to address this limitatio...Continue Reading

References

Apr 10, 2003·Evolution; International Journal of Organic Evolution·B C SheldonJ Merilä
Nov 13, 2004·The American Naturalist·Dany GarantBen C Sheldon

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Citations

Feb 6, 2007·Oecologia·Yoram Yom-TovElad Yom-Tov
Nov 20, 2009·Oecologia·Mihai Valcu, Bart Kempenaers
May 18, 2010·Oecologia·Timothy J E HarrisonS James Reynolds
Apr 27, 2012·Biology Letters·A M Grabowska-ZhangC A Hinde
Jan 24, 2008·Proceedings. Biological Sciences·Marta Szulkin, Ben C Sheldon
Jun 23, 2015·The American Naturalist·Amy E HinksBen C Sheldon
Feb 24, 2016·The Journal of Animal Ecology·Dylan Z ChildsMark Rees
Mar 2, 2016·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·John L QuinnJulie Morand-Ferron
Aug 6, 2014·Human Nature : an Interdisciplinary Biosocial Perspective·Thomas V PolletIan J Rickard
Apr 23, 2009·The Journal of Animal Ecology·Marta SzulkinBen C Sheldon
Jun 30, 2009·The Journal of Animal Ecology·John L QuinnBen C Sheldon
Sep 22, 2007·Conservation Biology : the Journal of the Society for Conservation Biology·Teddy A WilkinBen C Sheldon
Jun 30, 2007·Evolution; International Journal of Organic Evolution·Dany GarantBen C Sheldon
Nov 16, 2010·Molecular Ecology·Sarah C L KnowlesBen C Sheldon
Mar 20, 2010·Evolution; International Journal of Organic Evolution·Arild HusbyLoeske E B Kruuk
Dec 5, 2013·Evolution; International Journal of Organic Evolution·Colin J GarrowayBen C Sheldon
Jan 7, 2010·The Journal of Animal Ecology·Anders FoldvikSigurd Einum
May 7, 2010·The Journal of Animal Ecology·Samuel Haché, Marc-André Villard
Oct 15, 2013·The Journal of Animal Ecology·Sarah C L KnowlesBen C Sheldon
Oct 9, 2015·BMC Evolutionary Biology·Gabriella LjungströmMats Olsson
Jul 1, 2014·The Journal of Animal Ecology·Sandra BouwhuisBen C Sheldon
Nov 26, 2009·Current Biology : CB·Teddy A Wilkin, Ben C Sheldon
May 26, 2017·Evolution; International Journal of Organic Evolution·David N FisherAndrew G McAdam
Aug 14, 2018·The Journal of Animal Ecology·Anders Pape MøllerMarcel M Lambrechts
Sep 7, 2017·PloS One·José M Rey BenayasLuis Cayuela
Apr 21, 2020·Evolution; International Journal of Organic Evolution·Simon R EvansBen C Sheldon

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