Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1)
Phenotypic variation in male Calopteryx splendens damselflies: the role of wing pigmentation and body size in thermoregulation
Julkaisun tekijät: Laakso Linda K., Ilvonen Jaakko J., Suhonen Jukka
Kustantaja: OXFORD UNIV PRESS
Julkaisuvuosi: 2021
Journal: Biological Journal of the Linnean Society
Tietokannassa oleva lehden nimi: BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
Lehden akronyymi: BIOL J LINN SOC
Volyymi: 134
Julkaisunumero: 3
Aloitussivu: 685
Lopetussivun numero: 696
Sivujen määrä: 12
ISSN: 0024-4066
DOI: http://dx.doi.org/10.1093/biolinnean/blab102
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/67995885
For ectothermic insects, their colour and size are important determinants of body temperature: larger bodies require more heat to reach a certain temperature, and dark colours absorb heat more efficiently. These dark colours are expressed using melanin, which has been intimately linked with the thermoregulatory capabilities of insects. Melanin is also linked with immune defence and is often used as a secondary sexual character in insects. There is a potential trade-off situation between thermoregulatory capabilities, immune defence and secondary sexual characters, all of which use melanin. Some Calopteryx damselflies, such as Calopteryx splendens, have melanin-based wing pigmentation that is sexually selected and drives intra- and interspecific territorial aggression. Our goal was to study experimentally how the wing pigmentation and body size of C. splendens males affect their thermoregulation and, especially, their ability to become active (hereafter, 'activate') after being cooled down. Our results were in line with our hypotheses, showing that individuals with larger wing spots had significantly faster activation times than those with smaller wing spots, and that individuals with larger body size had significantly slower activation times than those with smaller body size. Both variables showed an interaction and are therefore important in damselfly warm-up and activation. We discuss the role of wing pigmentation and thermoregulation in the behavioural patterns observed in Calopteryx species.
Ladattava julkaisu This is an electronic reprint of the original article. |  |
