MICROGEOGRAPHIC VARIATION IN CORN BUNTING (MILIARIA CALANDRA) SONG: QUANTITATIVE AND DISCRIMINATION ASPECTS
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Abstract
Geographic variation in bird song that is described as local song dialects refers to a mosaic pattern of distribution of songs in a population within the dispersal capacities of the species. Corn buntings (Miliaria calandra) in the region of Alentejo, Portugal, show such local dialects. However, an interesting aspect of this population is that song types are restricted to sub - groups of males within each dialect rather than all males singing all song types as in other populations. After describing the pattern of song type variation qualitatively (i.e. classifying spectrograms by eye), we used cross - correlation of spectrograms in quantitative comparisons. This confirmed the qualitative classification of songs into song type categories and showed a tendency for neighbouring males to have most similar songs. Males did not respond significantly more or less strongly to playback of different song types; however males clearly discriminated between different song types in a habituation paradigm.
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| All Time | Past 365 days | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 573 | 96 | 13 |
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MICROGEOGRAPHIC VARIATION IN CORN BUNTING (MILIARIA CALANDRA) SONG: QUANTITATIVE AND DISCRIMINATION ASPECTS
In: BehaviourSearch for other papers by Claire Latruffe in
Current site
Google Scholar
PubMed
Search for other papers by Peter McGregor in
Current site
Google Scholar
PubMed
Search for other papers by José Tavares in
Current site
Google Scholar
PubMed
Search for other papers by Paulo Gama Mota in
Current site
Google Scholar
PubMed
Abstract
Geographic variation in bird song that is described as local song dialects refers to a mosaic pattern of distribution of songs in a population within the dispersal capacities of the species. Corn buntings (Miliaria calandra) in the region of Alentejo, Portugal, show such local dialects. However, an interesting aspect of this population is that song types are restricted to sub - groups of males within each dialect rather than all males singing all song types as in other populations. After describing the pattern of song type variation qualitatively (i.e. classifying spectrograms by eye), we used cross - correlation of spectrograms in quantitative comparisons. This confirmed the qualitative classification of songs into song type categories and showed a tendency for neighbouring males to have most similar songs. Males did not respond significantly more or less strongly to playback of different song types; however males clearly discriminated between different song types in a habituation paradigm.
| All Time | Past 365 days | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 573 | 96 | 13 |
| Full Text Views | 171 | 3 | 0 |
| PDF Views & Downloads | 96 | 4 | 0 |
