Echolocation and foraging ecology of the bristle-faced free-tailed bat, Setirostris eleryi, in central Australia
| Autor: | N. L. McKenzie, R. D. Bullen, M. Pennay |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
geography geography.geographical_feature_category biology Ecology Ecomorphology Ecology (disciplines) Foraging Niche Human echolocation Bristle biology.organism_classification 010603 evolutionary biology 01 natural sciences 010601 ecology Scotorepens Animal Science and Zoology Ecology Evolution Behavior and Systematics Riparian zone |
| Zdroj: | Australian Mammalogy. 42:302 |
| ISSN: | 0310-0049 |
| DOI: | 10.1071/am19038 |
| Popis: | We document the spectral characteristics of echolocation sequences of Setirostris eleryi recorded from riparian zones in the Central Ranges in Western Australia, near Warakurna. These are the first records of this species in Western Australia. The sequences are comparable to reference S. eleryi sequences from near Alice Springs, as well as to sequences from a nearby vouchered specimen locality (Hull River in the Northern Territory), yet distinct from Scotorepens greyii sequences from Western Australia, including locations in the Central Ranges. The central Australian S. eleryi sequences average 3kHz higher in frequency than reference S. eleryi recordings from eastern Australia. We deduce the species’ foraging strategy, microhabitat, wing beat frequency and flight speed from the echolocation sequences, then show that these deductions are consistent with calculations based on an airframe analysis of museum specimens, and with available field observations. The echolocation recordings provided a quick, passive, cost-effective characterisation of foraging niche, useful for conservation planning. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|