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Urbanization impacts short- but not long-distance natal dispersal in a common orb web spider
  • +7
  • Dries Bonte,
  • Clemence Rose,
  • Thomas Bastiaensen,
  • Jesper Jesper Bechsgaard,
  • Trine Bilde,
  • Maxime Dahirel,
  • Katrien De Wolf,
  • Helene Thylys,
  • Tine Uytterschaut,
  • Bram Vanthournout
Dries Bonte
Ghent University

Corresponding Author:[email protected]

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Clemence Rose
Aarhus University
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Thomas Bastiaensen
Ghent University
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Jesper Jesper Bechsgaard
Aarhus University
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Trine Bilde
Aarhus University
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Maxime Dahirel
Ghent University
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Katrien De Wolf
Ghent University
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Helene Thylys
Ghent University
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Tine Uytterschaut
Ghent University
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Bram Vanthournout
Ghent University
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Abstract

Urban environments represent a theatre for life history evolution. Species able to survive in cities can adapt to the local and often divergent environmental conditions compared to rural or natural environments. Dispersal determines establishment, gene flow, and thus the potential for local adaptation. Since habitats in urban environments are highly fragmented, and showing substantial turnover, contrasting adaptive effects on dispersal are expected. Fragmentation selects against dispersal while patch turn-over is expected to promote the evolution of dispersal. We here show both processes to act in concert when different scales are considered. Dispersal behaviour of juvenile, lab-reared garden spiders from two mid-sized European cities were tested under standardized conditions. While long-distance dispersal showed to be overall rare, short-distance dispersal strategies increased with urbanization at small scales, but declined when urbanization was quantified at large scales. We discuss the putative drivers behind these differences in natal dispersal and highlight its importance for urban evolution and ecology.
19 Jun 2023Submitted to Oikos
21 Jun 2023Submission Checks Completed
21 Jun 2023Assigned to Editor
21 Jun 2023Review(s) Completed, Editorial Evaluation Pending
22 Jun 2023Reviewer(s) Assigned
25 Jul 2023Editorial Decision: Revise Minor
17 Aug 20231st Revision Received
19 Aug 2023Assigned to Editor
19 Aug 2023Submission Checks Completed
19 Aug 2023Review(s) Completed, Editorial Evaluation Pending
24 Aug 2023Editorial Decision: Revise Minor
27 Aug 20232nd Revision Received
28 Aug 2023Submission Checks Completed
28 Aug 2023Assigned to Editor
28 Aug 2023Review(s) Completed, Editorial Evaluation Pending
31 Aug 2023Editorial Decision: Accept