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    House Sparrow (Passer domesticus) escape behavior is triggered faster in smaller settlements 

    García-Arroyo, Michelle; MacGregor-Fors, Ian; Quesada, Javier; Borràs, Antoni; Colomé-Menoyo, Laia; Senar, Juan Carlos (2023-02-13)

    A recurrent behavioral trait model to study adaptation to urban environments is the flight initiation distance (FID), measured as the distance at which animals flee from an approaching threat. It has previously been shown ...

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    Keys to the city: an integrative conceptual framework on avian urban filtering 

    MacGregor-Fors, Ian; García-Arroyo, Michelle; Quesada, Javier (2022-10-17)

    Urbanization represents a multi-dimensional ecological ‘filter’ for birds determined by a myriad of variables that can change over time. Birds colonising an urban system or staying in a habitat that has been recently ...

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    Selection based on the size of the black tie of the great tit may be reversed in urban habitats 

    Senar, Juan Carlos; Conroy, Michael J.; Quesada, Javier; Mateos González, Fernando (2014-06-07)

    A standard approach to model how selection shapes phenotypic traits is the analysis of capture–recapture data relating trait variation to survival. Divergent selection, however, has never been analyzed by the capture–recapture ...

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    Sexy birds are superior at solving a foraging problem 

    Mateos González, Fernando; Quesada, Javier; Senar, Juan Carlos (2011-03-30)

    Yellow, red or orange carotenoid-based colorations in male birds are often a signal to prospecting females about body condition, health status and ability to find food. However, this general ‘ability to find food’ has never ...