Landscape movements of migratory birds and bats reveal an expanded scale of stopover
| Autor: | Stuart A. Mackenzie, Liam P. McGuire, Bethany G. Thurber, Alex Mills, Christopher G. Guglielmo, Anna M. Calvert, Philip D. Taylor |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
lcsh:Medicine
Nocturnal Biology Birds Behavioral Ecology Ornithology Peninsula Chiroptera Animals Spatial and Landscape Ecology lcsh:Science geography Multidisciplinary geography.geographical_feature_category Geographic area Ecology lcsh:R Mammalogy Biogeography Spatial ecology Bird flight lcsh:Q Animal Migration Scale (map) Zoology Bat flight Research Article |
| Zdroj: | PLoS ONE PLoS ONE, Vol 6, Iss 11, p e27054 (2011) |
| ISSN: | 1932-6203 |
| Popis: | Many species of birds and bats undertake seasonal migrations between breeding and over-wintering sites. En-route, migrants alternate periods of flight with time spent at stopover--the time and space where individuals rest and refuel for subsequent flights. We assessed the spatial scale of movements made by migrants during stopover by using an array of automated telemetry receivers with multiple antennae to track the daily location of individuals over a geographic area ~20 × 40 km. We tracked the movements of 322 individuals of seven migratory vertebrate species (5 passerines, 1 owl and 1 bat) during spring and fall migratory stopover on and adjacent to a large lake peninsula. Our results show that many individuals leaving their capture site relocate within the same landscape at some point during stopover, moving as much as 30 km distant from their site of initial capture. We show that many apparent nocturnal departures from stopover sites are not a resumption of migration in the strictest sense, but are instead relocations that represent continued stopover at a broader spatial scale. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|