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Where did the finch...
Where did the finch go? Insights from radio telemetry of the medium ground finch (Geospiza fortis)
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- Beausoleil, Marc Olivier (författare)
- McGill University
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- Camacho, Carlos (författare)
- Lund University,Lunds universitet,Evolutionär ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,CAnMove - Centrum för forskning om djurs spridning och flyttning,Forskargrupper vid Lunds universitet,Evolutionary ecology,Department of Biology,Faculty of Science,CAnMove - Centre for Animal Movement Research,Lund University Research Groups,CSIC Instituto Pirenaico de Ecología (IPE)
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- Rabadán-González, Julio (författare)
- Observation.org
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visa fler...
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- Lalla, Kristen (författare)
- McGill University
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- Richard, Roxanne (författare)
- McGill University
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- Carrion-Avilés, Paola (författare)
- McGill University
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- Hendry, Andrew P. (författare)
- McGill University
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- Barrett, Rowan D.H. (författare)
- McGill University
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(creator_code:org_t)
- 2022-04-26
- 2022
- Engelska.
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Ingår i: Ecology and Evolution. - : Wiley. - 2045-7758. ; 12:4
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Movement patterns and habitat selection of animals have important implications for ecology and evolution. Darwin's finches are a classic model system for ecological and evolutionary studies, yet their spatial ecology remains poorly studied. We tagged and radio-tracked five (three females, two males) medium ground finches (Geospiza fortis) to examine the feasibility of telemetry for understanding their movement and habitat use. Based on 143 locations collected during a 3-week period, we analyzed for the first time home-range size and habitat selection patterns of finches at El Garrapatero, an arid coastal ecosystem on Santa Cruz Island (Galápagos). The average 95% home range and 50% core area for G. fortis in the breeding season was 20.54 ha ± 4.04 ha SE and 4.03 ha ± 1.11 ha SE, respectively. For most of the finches, their home range covered a diverse set of habitats. Three finches positively selected the dry-forest habitat, while the other habitats seemed to be either negatively selected or simply neglected by the finches. In addition, we noted a communal roosting behavior in an area close to the ocean, where the vegetation is greener and denser than the more inland dry-forest vegetation. We show that telemetry on Darwin's finches provides valuable data to understand the movement ecology of the species. Based on our results, we propose a series of questions about the ecology and evolution of Darwin's finches that can be addressed using telemetry.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Nyckelord
- behavior
- communal roosting
- Geospiza fortis
- habitat selection
- home range
- spatial ecology
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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