Hydrological management in a restored wetland affects stopover ecology of Aquatic Warbler: the case of La Nava wetland, northern Spain
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- Muñoz-Adalia Emigdio Jordán
- Sustainable Forest Management Research Institute, University of Valladolid and INIA, Campus La Yutera Department of Vegetal Production and Forest Resources, University of Valladolid
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- Jubete Fernando
- Global Nature Foundation
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- Zumalacárregui Carlos
- Global Nature Foundation
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- Baglione Vittorio
- Sustainable Forest Management Research Institute, University of Valladolid and INIA, Campus La Yutera Department of Agroforestry, University of Valladolid, Campus La Yutera
抄録
The Aquatic Warbler (Acrocephalus paludicola) is one of the most threatened migratory passerine birds in the world. The species stops over at both European and African wetlands during its migration. Using data from a long-term ringing program in the restored wetland of La Nava (Spain), we describe several aspects of the species’ stopover ecology at this site with special focus on juveniles: (1) timing of migration, (2) population size, (3) fuel reposition rate, (4) stopover duration and (5) site fidelity. We elaborated two Multiple Linear Regressions and a Generalized Linear Model to estimate the determinants of migration phenology, daily fattening rate and abundance of captures in addition to minimum observed stopover duration. Finally, we calculated return rates to estimate stopover site fidelity. We determined that: this stopover site belongs to an Atlantic migration route; juveniles experience delayed migration; and that reduced captures are associated with more restrictive hydrological management. Return rate results suggested that there is stopover site fidelity is low. Our results may indicate that this stopover site serves primarily as a resting place rather than a refuelling habitat for this species.
収録刊行物
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- ORNITHOLOGICAL SCIENCE
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ORNITHOLOGICAL SCIENCE 14 (2), 89-98, 2015
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詳細情報 詳細情報について
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- CRID
- 1390282680167519744
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- NII論文ID
- 130005093228
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- ISSN
- 13470558
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可