%ABeasley, DeAnna [Department of Biology, Geology, and Environmental Science University of Tennessee at Chattanooga Chattanooga TN USA, Department of Applied Ecology North Carolina State University Raleigh NC USA]%ABeasley, DeAnna [Department of Biology, Geology, and Environmental Science; University of Tennessee at Chattanooga; Chattanooga TN USA; Department of Applied Ecology; North Carolina State University; Raleigh NC USA]%APenick, Clint [Department of Applied Ecology North Carolina State University Raleigh NC USA, Keck Center for Behavioral Biology North Carolina State University Raleigh NC USA, The Biomimicry Center Arizona State University Tempe AZ USA]%APenick, Clint [Department of Applied Ecology; North Carolina State University; Raleigh NC USA; Keck Center for Behavioral Biology; North Carolina State University; Raleigh NC USA; The Biomimicry Center; Arizona State University; Tempe AZ USA]%ABoateng, Nana [Department of Applied Ecology North Carolina State University Raleigh NC USA]%ABoateng, Nana [Department of Applied Ecology; North Carolina State University; Raleigh NC USA]%AMenninger, Holly [Bell Museum; University of Minnesota; St. Paul MN USA]%AMenninger, Holly [Bell Museum University of Minnesota St. Paul MN USA]%ADunn, Robert [Department of Applied Ecology North Carolina State University Raleigh NC USA, Keck Center for Behavioral Biology North Carolina State University Raleigh NC USA, Center for Macroecology, Evolution and Climate Natural History Museum of Denmark University of Copenhagen Copenhagen Denmark]%ADunn, Robert [Department of Applied Ecology; North Carolina State University; Raleigh NC USA; Keck Center for Behavioral Biology; North Carolina State University; Raleigh NC USA; Center for Macroecology, Evolution and Climate; Natural History Museum of Denmark; University of Copenhagen; Copenhagen Denmark]%BJournal Name: Ecology and Evolution; Journal Volume: 8; Journal Issue: 5; Related Information: CHORUS Timestamp: 2023-09-17 02:13:23 %D2018%IWiley Blackwell (John Wiley & Sons) %JJournal Name: Ecology and Evolution; Journal Volume: 8; Journal Issue: 5; Related Information: CHORUS Timestamp: 2023-09-17 02:13:23 %K %MOSTI ID: 10050960 %PMedium: X %TUrbanization disrupts latitude‐size rule in 17‐year cicadas %XAbstract

Many ectotherms show a decrease in body size with increasing latitude due to changes in climate, a pattern termed converse Bergmann's rule. Urban conditions—particularly warmer temperatures and fragmented landscapes—may impose stresses on development that could disrupt these body size patterns. To test the impact of urbanization on development and latitudinal trends in body size, we launched a citizen science project to collect periodical cicadas (Magicicada septendecim) from across their latitudinal range during the 2013 emergence of BroodII. Periodical cicadas are long‐lived insects whose distribution spans a broad latitudinal range covering both urban and rural habitats. We used a geometric morphometric approach to assess body size and developmental stress based on fluctuating asymmetry in wing shape. Body size of rural cicadas followed converse Bergmann's rule, but this pattern was disrupted in urban habitats. In the north, urban cicadas were larger than their rural counterparts, while southern populations showed little variation in body size between habitats. We detected no evidence of differences in developmental stress due to urbanization. To our knowledge, this is the first evidence that urbanization disrupts biogeographical trends in body size, and this pattern highlights how the effects of urbanization may differ over a species’ range.

%0Journal Article