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Related Experiment Video

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Design and Construction of an Urban Runoff Research Facility
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Niche segregation, competition, and urbanization.

Anders Pape Møller1, Mario Díaz2,

  • 1Ecologie Systématique Evolution, CNRS, Université Paris-Sud, AgroParisTech, Université Pari-Saclay, Orsay Cedex F-91400, France.

Current Zoology
|November 8, 2018
PubMed
Summary
This summary is machine-generated.

Interspecific competition for human proximity drives species urbanization, leading to adaptations like earlier reproduction and wider ranges. This competition may facilitate further adaptation to urban environments.

Keywords:
birdsdistance to human habitationisolation by habitatisolation by timemechanisms

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Area of Science:

  • Ecology
  • Evolutionary Biology
  • Urban Ecology

Background:

  • Species urbanization is increasing, with successful colonizers gaining fitness benefits.
  • Existing theories link urbanization to behavioral flexibility and reduced fear responses.
  • A novel hypothesis suggests interspecific competition for human proximity drives urbanization.

Purpose of the Study:

  • To test the hypothesis that interspecific competition for proximity to humans drives species urbanization.
  • To investigate the relationship between human association and life-history traits in bird species.

Main Methods:

  • Recorded distances to human habitation during the breeding season for 50 pairs of closely related bird species.
  • Compared species closely associated with humans to those not associated.

Main Results:

  • Species associated with humans exhibited greater urbanization, larger range sizes, and higher abundance.
  • These species had shorter flight initiation distances and were more abundant in rural habitats.
  • Urban-associated species reproduced earlier and over longer periods.

Conclusions:

  • Results support the hypothesis that interspecific competition promotes urbanization.
  • Urban habitat isolation may enhance contemporary adaptation to urban environments.