Migratory Pathways and Connectivity in Asian Houbara Bustards: Evidence from 15 Years of Satellite Tracking
Open Access
- 8 June 2011
- journal article
- research article
- Published by Public Library of Science (PLoS) in PLOS ONE
- Vol. 6 (6), e20570
- https://doi.org/10.1371/journal.pone.0020570
Abstract
Information on migratory pathways and connectivity is essential to understanding population dynamics and structure of migrant species. Our manuscript uses a unique dataset, the fruit of 103 individual Asian houbara bustards captured on their breeding grounds in Central Asia over 15 years and equipped with satellite transmitters, to provide a better understanding of migratory pathways and connectivity; such information is critical to the implementation of biologically sound conservation measures in migrant species. At the scale of the distribution range we find substantial migratory connectivity, with a clear separation of migration pathways and wintering areas between western and eastern migrants. Within eastern migrants, we also describe a pattern of segregation on the wintering grounds. But at the local level connectivity is weak: birds breeding within the limits of our study areas were often found several hundreds of kilometres apart during winter. Although houbara wintering in Arabia are known to originate from Central Asia, out of all the birds captured and tracked here not one wintered on the Arabian Peninsula. This is very likely the result of decades of unregulated off-take and severe habitat degradation in this area. At a time when conservation measures are being implemented to safeguard the long-term future of this species, this study provides critical data on the spatial structuring of populations.Keywords
This publication has 34 references indexed in Scilit:
- Comparison of trace element and stable isotope approaches to the study of migratory connectivity: an example using two hirundine species breeding in Europe and wintering in AfricaJournal of Ornithology, 2009
- All across Africa: highly individual migration routes of Eleonora's falconProceedings Of The Royal Society B-Biological Sciences, 2008
- Migration of the Houbara Bustard Chlamgdotis undulata from Abu Dhabi to Turkmenistan; the first results from satellite tracking studiesIbis, 2008
- Evidence for a navigational map stretching across the continental U.S. in a migratory songbirdProceedings of the National Academy of Sciences of the United States of America, 2007
- Optimal Conservation of Migratory SpeciesPLOS ONE, 2007
- Alarming houbara bustard population trends in AsiaBiological Conservation, 2005
- Migration patterns of four Asian Houbara Chlamydotis macqueenii wintering in the Cholistan Desert, Punjab, PakistanBird Conservation International, 2004
- An assessment of annual mortality rates in adult‐sized migrant houbara bustards (Chlamydotis [undulata] macqueenii)Animal Conservation, 2001
- Detours in Bird MigrationJournal of Theoretical Biology, 2001
- Seasonal changes in Houbara bustard Chlamydotis undulata macqueenii numbers in Harrat Al Harrah, Saudi Arabia: Implications for managing a remnant populationBiological Conservation, 1996