No evidence of a founder effect in Rainbow Lorikeet vocalisations following a population bottleneck
| Autor: | Myron C. Baker |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
0106 biological sciences
education.field_of_study Trichoglossus Ecology 05 social sciences Population Zoology Biology biology.organism_classification 010603 evolutionary biology 01 natural sciences Population bottleneck Homogeneous 0501 psychology and cognitive sciences Animal Science and Zoology 050102 behavioral science & comparative psychology Conservation biology Ornithology education Southern Hemisphere Ecology Evolution Behavior and Systematics Nature and Landscape Conservation Founder effect |
| Zdroj: | Emu - Austral Ornithology. 114:197-205 |
| ISSN: | 1448-5540 0158-4197 |
| DOI: | 10.1071/mu13095 |
| Popis: | The isolated population of Rainbow Lorikeets (Trichoglossus haematodus) in Perth, Western Australia, was founded by fewer than 10 birds introduced in the early 1960s. I recorded vocalisations of individuals in Perth, and from >2000km away, at one site in South Australia and one in Victoria, to determine if the Perth population showed evidence of a founder effect in three common types of vocal signals. I measured spectral features of the calls of each recorded bird. Linear discriminant analysis indicated the three population samples differed significantly for all three call-types but there was no consistent trend suggesting the Perth birds retained evidence of a founder effect in these calls. Calls of Perth birds were not more simplified or more homogeneous in their acoustic traits. Although it is possible that there are founder effects for total vocal repertoires, which was not assessed here, there was no evidence for a founder effect in these most conspicuous vocalisations. |
| Databáze: | OpenAIRE |
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