Microgeographic adaptation linked to forest fragmentation and habitat quality in the tropical fruit fly Drosophila birchii
Yvonne Willi, Ary A Hoffmann
OIKOS | WILEY-BLACKWELL | Published : 2012
Little is known about the evolutionary implications of habitat fragmentation, although altered selection regimes could influence the genetic constitution of fragmented populations. In particular, fragmentation might lead to selection for enhanced stress resistance and tolerance of unfavorable environmental conditions. We investigated the evolutionary consequences of habitat fragmentation in Drosophila birchii flies from small fragments and the interior of large forests of northern Queensland, Australia, in three consecutive years. Evolved differences were detected in a common garden design. Flies from fragments were larger and less desiccation resistant, particularly in the first year, when ..View full abstract
Awarded by Swiss National Science Foundation
We thank Jennifer Anson, Vanessa Kellerman, Jane Leslie, Kate Mitchell, Alan Rako, Lea Rako, Rhonda Rawlinson, Michele Schiffer, Jennifer Shirriffs, Nikki Sigmund, Belinda van Heerwarrden, Andrew Weeks and Markus Willi for help and advice and Josh Van Buskirk for comments on the manuscript. We were supported by the Swiss National Science Foundation (PBZHA-108498, 31003A-116270, PP00P3-123396/1), the Roche Foundation, the Basler Stiftung fur biologische Forschung and the Australian Research Council.