Predictors of floater status in a long-lived bird: a cross-sectional and longitudinal test of hypotheses

The Journal of Animal Ecology
Fabrizio SergioF Hiraldo

Abstract

1. Few studies have been capable of monitoring the nonterritorial sector of a population because of the typically secretive behaviour of floating individuals, despite the existing consensus over the demographic importance of floating. Furthermore, there is almost no information on floating behaviour for migratory species. 2. The factors that determine whether an individual will be a floater or a territory owner have been framed into five, non-mutually exclusive hypotheses: (i) territory holders are morphologically superior to floaters (resource-holding potential hypothesis); (ii) age confers skills and fighting motivation which lead to social dominance and territory ownership (age hypothesis); (iii) occupancy time of a site determines asymmetries in its knowledge, familiarity and value for potential contenders (site-dominance hypothesis); (iv) contenders use an arbitrary rule to settle contests leading to pre-defined cut-off points for a biologically meaningful trait (e.g. age, body size) separating floaters from territory holders (arbitrary convention hypothesis); and (v) floaters set up a 'war of attrition' at arbitrarily chosen territories (arbitrary attrition hypothesis). 3. We tested these hypotheses using long-term data o...Continue Reading

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Citations

Feb 7, 2013·Oecologia·M Ruiz-RodríguezM Martín-Vivaldi
Feb 11, 2011·Biology Letters·Nuria SelvaJosé A Donázar
Mar 30, 2010·General and Comparative Endocrinology·Julio BlasFernando Hiraldo
Apr 27, 2013·Evolution; International Journal of Organic Evolution·Emmi Schlicht, Bart Kempenaers
Aug 29, 2016·Oecologia·Lidia López-JiménezFabrizio Sergio
Mar 10, 2021·Scientific Reports·David SerranoJosé Antonio Donázar

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