The relative importance of conditions in wintering and passage areas on spring arrival dates: the case of long-distance Iberian migrants
Remote sensing data have been used in previous studies to assess the effects of winter ecological conditions in Africa on biological parameters recorded in bird populations during the following breeding season in Europe. Based on the results of these studies, we hypothesized that a high productivity...
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Online Access: | http://hdl.handle.net/10261/110558 https://doi.org/10.1007/s10336-007-0260-z |
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ftcsic:oai:digital.csic.es:10261/110558 2024-02-11T10:06:36+01:00 The relative importance of conditions in wintering and passage areas on spring arrival dates: the case of long-distance Iberian migrants Gordo, Óscar Sanz, Juan José 2008 http://hdl.handle.net/10261/110558 https://doi.org/10.1007/s10336-007-0260-z en eng Springer http://link.springer.com/article/10.1007%2Fs10336-007-0260-z Sí Journal of Ornithology 149: 199-210 (2008) http://hdl.handle.net/10261/110558 doi:10.1007/s10336-007-0260-z none Africa Bird migration Climate Iberian Peninsula NDVI Phenology artículo http://purl.org/coar/resource_type/c_6501 2008 ftcsic https://doi.org/10.1007/s10336-007-0260-z 2024-01-16T10:05:10Z Remote sensing data have been used in previous studies to assess the effects of winter ecological conditions in Africa on biological parameters recorded in bird populations during the following breeding season in Europe. Based on the results of these studies, we hypothesized that a high productivity of vegetation during the winter and, thus, high resource availability, should advance the arrival of long-distance migrants to the European breeding areas due to enhanced ecological conditions. To test this hypothesis, between 1982 and 2000 we examined the first arrival date to the Iberian Peninsula of five species (White Stork, Cuckoo, Common Swift, Barn Swallow and Nightingale) in relation to several explanatory variables: ecological conditions in their African wintering grounds and passage areas, as reflected by the normalized difference vegetation index (NDVI), temperature and precipitation in their passage areas and the winter North Atlantic Oscillation (NAO). Ecological conditions in the wintering areas were important for White Stork, Cuckoo and Barn Swallow phenology, while both NDVI in passage areas and NAO did not have an effect on any species. Migratory birds arrived earlier after winters with high vegetation productivity in Africa. Temperature in passage areas was important for the later species (i.e. Cuckoo, Common Swift and Nightingale), although in all cases the true relevance of this factor was scarce due to the poor explanatory capacity of the models. These species were recorded in the Iberian Peninsula earlier in the spring of those years with warmer temperatures in passage areas. The nexus between African NDVI and arrival phenology is hypothesized through increases in wintering survival rates and/or the faster acquisition of pre-migratory body condition and progression through sub-Saharan areas. Peer reviewed Article in Journal/Newspaper North Atlantic North Atlantic oscillation Digital.CSIC (Spanish National Research Council) Journal of Ornithology 149 2 199 210 |
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Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Africa Bird migration Climate Iberian Peninsula NDVI Phenology |
spellingShingle |
Africa Bird migration Climate Iberian Peninsula NDVI Phenology Gordo, Óscar Sanz, Juan José The relative importance of conditions in wintering and passage areas on spring arrival dates: the case of long-distance Iberian migrants |
topic_facet |
Africa Bird migration Climate Iberian Peninsula NDVI Phenology |
description |
Remote sensing data have been used in previous studies to assess the effects of winter ecological conditions in Africa on biological parameters recorded in bird populations during the following breeding season in Europe. Based on the results of these studies, we hypothesized that a high productivity of vegetation during the winter and, thus, high resource availability, should advance the arrival of long-distance migrants to the European breeding areas due to enhanced ecological conditions. To test this hypothesis, between 1982 and 2000 we examined the first arrival date to the Iberian Peninsula of five species (White Stork, Cuckoo, Common Swift, Barn Swallow and Nightingale) in relation to several explanatory variables: ecological conditions in their African wintering grounds and passage areas, as reflected by the normalized difference vegetation index (NDVI), temperature and precipitation in their passage areas and the winter North Atlantic Oscillation (NAO). Ecological conditions in the wintering areas were important for White Stork, Cuckoo and Barn Swallow phenology, while both NDVI in passage areas and NAO did not have an effect on any species. Migratory birds arrived earlier after winters with high vegetation productivity in Africa. Temperature in passage areas was important for the later species (i.e. Cuckoo, Common Swift and Nightingale), although in all cases the true relevance of this factor was scarce due to the poor explanatory capacity of the models. These species were recorded in the Iberian Peninsula earlier in the spring of those years with warmer temperatures in passage areas. The nexus between African NDVI and arrival phenology is hypothesized through increases in wintering survival rates and/or the faster acquisition of pre-migratory body condition and progression through sub-Saharan areas. Peer reviewed |
format |
Article in Journal/Newspaper |
author |
Gordo, Óscar Sanz, Juan José |
author_facet |
Gordo, Óscar Sanz, Juan José |
author_sort |
Gordo, Óscar |
title |
The relative importance of conditions in wintering and passage areas on spring arrival dates: the case of long-distance Iberian migrants |
title_short |
The relative importance of conditions in wintering and passage areas on spring arrival dates: the case of long-distance Iberian migrants |
title_full |
The relative importance of conditions in wintering and passage areas on spring arrival dates: the case of long-distance Iberian migrants |
title_fullStr |
The relative importance of conditions in wintering and passage areas on spring arrival dates: the case of long-distance Iberian migrants |
title_full_unstemmed |
The relative importance of conditions in wintering and passage areas on spring arrival dates: the case of long-distance Iberian migrants |
title_sort |
relative importance of conditions in wintering and passage areas on spring arrival dates: the case of long-distance iberian migrants |
publisher |
Springer |
publishDate |
2008 |
url |
http://hdl.handle.net/10261/110558 https://doi.org/10.1007/s10336-007-0260-z |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
http://link.springer.com/article/10.1007%2Fs10336-007-0260-z Sí Journal of Ornithology 149: 199-210 (2008) http://hdl.handle.net/10261/110558 doi:10.1007/s10336-007-0260-z |
op_rights |
none |
op_doi |
https://doi.org/10.1007/s10336-007-0260-z |
container_title |
Journal of Ornithology |
container_volume |
149 |
container_issue |
2 |
container_start_page |
199 |
op_container_end_page |
210 |
_version_ |
1790604419698524160 |