Parasitism affects variation in a male damselfly sexual ornament
| Autor: | Oskari Härmä, Jukka Suhonen, Jaakko J. Ilvonen, Derek W. Dunn, Indrikis Krams, Sini Ilvonen, Johanna Dunn, Kari M. Kaunisto |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
0301 basic medicine Wing biology Spots Ecology Allopatric speciation Parasitism biology.organism_classification Odonata 010603 evolutionary biology 01 natural sciences 03 medical and health sciences 030104 developmental biology Damselfly Sympatric speciation ta1181 Parasite hosting Animal Science and Zoology Ecology Evolution Behavior and Systematics |
| Zdroj: | Ethology Ecology & Evolution. 30:256-266 |
| ISSN: | 1828-7131 0394-9370 |
| DOI: | 10.1080/03949370.2017.1354920 |
| Popis: | Sexually selected ornaments in animals are costly, with parasitism often affecting the degree to which they are expressed. Male Calopteryx splendens damselflies exhibit melanised ‘wing spots’. Those possessing large spots are favoured by females but also have an increased likelihood of being attacked by Calopteryx virgo, a common sympatric competitor. Melanin is used to produce the wing spots, but it is also used in immune defence against parasites that commonly infect damselflies. A total of 261 C. splendens males were collected from 26 Finnish and Latvian populations, of which half were found to be sympatric with C. virgo. It was found that males which originated from populations in which eugregarine parasites were present had smaller wing spots than individuals from parasite-free populations. Contrary to previous studies, the wing spots of C. splendens males in populations sympatric with C. virgo were not found to be smaller than those in allopatric populations. Parasite presence in C. splendens was fo... |
| Databáze: | OpenAIRE |
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