Intraspecific Variation in the External and Skeletal Morphology of Hynobius setouchi Matsui, Okawa, Tanabe et Misawa, 2019 (Amphibia: Urodela: Hynobiidae)
| Autor: | Sotaro Hara, Kanto Nishikawa |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine biology Zoology Morphology (biology) Interspecific competition biology.organism_classification 010603 evolutionary biology 01 natural sciences Skeleton (computer programming) Intraspecific competition Sexual dimorphism 03 medical and health sciences 030104 developmental biology Genus biology.animal Salamander Animal Science and Zoology Hynobius |
| Zdroj: | Zoological Science. 37:346 |
| ISSN: | 0289-0003 |
| DOI: | 10.2108/zs190155 |
| Popis: | The hynobiid salamander genus Hynobius is a basal taxon in the urodeles that plays a key role in understanding the evolution of sexual dimorphism in urodeles. We examined the age (juveniles vs. adults) and sexual differences in the external and skeletal morphology of a Japanese lentic breeding salamander, Hynobius setouchi. We found that juveniles had larger heads than those of adults, and most characters were larger in adult males than in females, except for trunk size. This was also observed in skeletal morphology, although some tail characters differed only in the skeleton. We suggest that intra- and interspecific comparisons of the external and skeletal characters of salamanders should consider age, sexual, and seasonal differences. |
| Databáze: | OpenAIRE |
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