한빛사논문
- 조회1,393
Changku Kang1, Sehyeok Im2,3, Won Young Lee2, Yunji Choi4, Devi Stuart-Fox5, Blanca Huertas6
1Department of Biosciences, Mopko National University, Muan, South Korea
2Division of Life Sciences, Korea Polar Research Institute, Incheon, South Korea
3University of Science and Technology, Daejeon, South Korea
4Department of Life Sciences, Imperial College London, London, UK
5School of BioSciences, The University of Melbourne, Parkville, Vic, Australia
6Department of Life Sciences, Natural History Museum London, London, UK
Correspondence Changku Kang, Won Young Lee
Abstract
Climatic gradients frequently predict large-scale ecogeographical patterns in animal coloration, but the underlying causes are often difficult to disentangle. We examined ecogeographical patterns of reflectance among 343 European butterfly species and isolated the role of selection for thermal benefits by comparing animal-visible and near-infrared (NIR) wavebands. NIR light accounts for ~50% of solar energy but cannot be seen by animals so functions primarily in thermal control. We found that reflectance of both dorsal and ventral surfaces shows thermally adaptive correlations with climatic factors including temperature and precipitation. This adaptive variation was more prominent in NIR than animal-visible wavebands and for body regions (thorax-abdomen and basal wings) that are most important for thermoregulation. Thermal environments also predicted the reflectance difference between dorsal and ventral surfaces, which may be due to modulation between requirements for heating and cooling. These results highlight the importance of climatic gradients in shaping the reflectance properties of butterflies at a continent-wide scale.
논문정보
- Research article
- 2021년 06월 (BRIC 등록일 2021-07-02)
- 국내(교신)+국외 연구진
- 생명과학 > 분류/생태/환경생물학
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