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Divergent ornamentation within a single population of the barn swallow.
Arai, Emi; Hasegawa, Masaru; Yoshimizu, Chikage; Ishikawa, Naoto F; Ohkouchi, Naohiko; Tayasu, Ichiro.
Afiliación
  • Arai E; Research Institute for Humanity and Nature, 457-4 Motoyama, Kamigamo, Kita-ku, Kyoto, 603-8047, Japan.
  • Hasegawa M; Department of Environmental Science, Ishikawa Prefectural University, Nonoichi, Ishikawa 921­8836, Japan.
  • Yoshimizu C; Research Institute for Humanity and Nature, 457-4 Motoyama, Kamigamo, Kita-ku, Kyoto, 603-8047, Japan.
  • Ishikawa NF; Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-Cho, 13 Yokosuka, Kanagawa 237-0061, Japan.
  • Ohkouchi N; Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima-Cho, 13 Yokosuka, Kanagawa 237-0061, Japan.
  • Tayasu I; Research Institute for Humanity and Nature, 457-4 Motoyama, Kamigamo, Kita-ku, Kyoto, 603-8047, Japan.
J Evol Biol ; 2024 Sep 09.
Article en En | MEDLINE | ID: mdl-39248436
ABSTRACT
Differential migration strategies favour different sets of characteristics, including sexually selected ornamentation. Such phenotypic variation is particularly evident in a population with partial migration, where migrants and non-migrants co-exist. Partial migration provides insights into the link between migration, local environment and ornamentation, although empirical studies remain scarce. Here, we studied the plumage traits of barn swallows (Hirundo rustica) in southern Japan, where both winterings and migrants breed sympatrically. We further examined this relationship with multiple isotopes (δ2H, δ13C, δ15N and δ34S), which provides insight into their moulting habitat. Among males, winterings and migrants differed in their morphological traits wintering males had shorter wings, which suggests the high demand for flight apparatus in migratory birds. Moreover, wintering males had larger white tail spots and less colourful throat patches than migratory males, indicating ornament divergence between them. Wintering males had a significantly smaller isotopic space when examining the combinations of δ34S with the other isotopes compared to migratory males, which indicates a differential geographic range between them, perhaps because of the limited variation in the distance to the sea in wintering males. As in males, wintering females had a significantly smaller isotopic space than migrant females, but there were few morphological differences between migratory and wintering females. Instead, some morphological traits were related to isotope values in females. These results indicate sex-specific linkage between migration, local environment, and ornamentation.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Evol Biol Asunto de la revista: BIOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Evol Biol Asunto de la revista: BIOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Reino Unido