Geographic Variation in Yellow Bunting Songs
| Autor: | Shoji Hamao, Haruna Komatsu, Masanori Shinohara |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
animal structures biology Ecology 05 social sciences Bunting Geographic variation biology.organism_classification 010603 evolutionary biology 01 natural sciences Geography nervous system Habitat behavior and behavior mechanisms 0501 psychology and cognitive sciences Animal Science and Zoology Mainland 050102 behavioral science & comparative psychology Emberiza sulphurata psychological phenomena and processes |
| Zdroj: | Ornithological Science. 17:159-164 |
| ISSN: | 1347-0558 |
| DOI: | 10.2326/osj.17.159 |
| Popis: | In Japan, geographic variation in bird song is known only on small peripheral islands with isolated populations, and has not been reported in any species on the main islands of Japan, probably due to the close proximity of the populations on the relatively small main islands. On Honshu, one of the four main islands of Japan, the Yellow Bunting Emberiza sulphurata breeds in restricted habitats (i.e. wet grasslands with forest edge, or wet grasslands with sparse forest). This may facilitate the isolation of its populations and may have led to geographic variation in its songs. We investigated the acoustic characteristics of the songs of Yellow Buntings from four populations in central Honshu and found differences among the populations. For example, males at Nagaoka sang short songs with highly frequency-modulated notes, whereas males at Fuji sang long songs with poorly modulated notes. This study demonstrated geographic variation in bird songs on a small scale in mainland Japan. As songs are formed through cultural learning, local songs can arise in loose isolation or for short periods. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|