Habitat preferences of two sparrow species are modified by abundances of other birds in an urban environment

Current Zoology
Piotr SkórkaPiotr Tryjanowski

Abstract

Every species has certain habitat requirements, which may be altered by interactions with other co-occurring species. These interactions are mostly ignored in predictive models trying to identify key habitat variables correlated with species population abundance/occurrence. We investigated how the structure of the urban landscape, food resources, potential competitors, predators, and interaction between these factors influence the abundance of house sparrowPasser domesticusand the tree sparrowP. montanusin sixty 25 ha plots distributed randomly across residential areas of the city of Poznań (Poland). The abundance of the house sparrow was positively correlated with the abundance of pigeons but negatively correlated with human-related food resources. There were significant interaction terms between abundances of other urban species and habitat variables in statistical models. For example, the abundance of house sparrow was negatively correlated with the abundance of corvids and tree sparrows but only when food resources were low. The abundance of tree sparrows positively correlated with density of streets and the distance from the city center. The abundance of this species positively correlated with the abundance of corvids when...Continue Reading

References

Jul 27, 2004·Science·Etienne DanchinRichard H Wagner
Mar 27, 2007·Journal of Theoretical Biology·John M AnderiesEyal Shochat
May 29, 2007·Conservation Biology : the Journal of the Society for Conservation Biology·Vincent DevictorFrédéric Jiguet
Feb 7, 2008·Biology Letters·Gillian N RobbStuart Bearhop
May 17, 2012·Oecologia·Anders Pape MøllerPiotr Tryjanowski
Jun 13, 2012·Biological Reviews of the Cambridge Philosophical Society·Mary Susanne WiszJens-Christian Svenning
Feb 19, 2015·Ecology and Evolution·Federico Morelli, Piotr Tryjanowski

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Citations

May 1, 2021·Animals : an Open Access Journal From MDPI·Róża AndrzejczakŁukasz Myczko
Jun 9, 2021·Environmental Science and Pollution Research International·Piotr SkórkaPaweł Zduńczyk

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Presence
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