Recent changes in the abundance of Common Pochard Aythya ferina breeding in Europe
National accounts suggest that the Common Pochard Aythya ferina was an uncommon breeding bird throughout western Europe before 1850. Extensions to the breeding range in the late 19th century were potentially aided by the rapid development of managed fish-ponds in eastern Europe, which provided suita...
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ftcsic:oai:digital.csic.es:10261/146302 2024-02-11T10:09:30+01:00 Recent changes in the abundance of Common Pochard Aythya ferina breeding in Europe Fox, A.D. Caicergues, A. Banik, M.V. Devos, K. Dvorak, M. Ellermaa, M. Folliot, B. Green, Andy J. Grünenberg, C. Guillemain, M. 2016 http://hdl.handle.net/10261/146302 en eng Wildfowl & Wetlands Trust Publisher's version http://wildfowl.wwt.org.uk/index.php/wildfowl/article/view/2638 Sí Wildfowl, 66: 22-40 (2016) http://hdl.handle.net/10261/146302 open Aythya ferina Breeding Common Pochard Population declines Population stressors artículo http://purl.org/coar/resource_type/c_6501 2016 ftcsic 2024-01-16T10:21:32Z National accounts suggest that the Common Pochard Aythya ferina was an uncommon breeding bird throughout western Europe before 1850. Extensions to the breeding range in the late 19th century were potentially aided by the rapid development of managed fish-ponds in eastern Europe, which provided suitable novel habitat at that time. Expansion into western Europe followed in subsequent decades. Wetland and waterbody eutrophication throughout Europe, which likely provided food and cover for the birds, may have accelerated the rapid expansion from the 1950s until the early 1980s. Widespread declines in the last 30 years, especially in eastern Europe, where breeding numbers are highest, are possibly linked to intensification and/or abandonment of freshwater fish farming and changes in water quality. Studies show that Pochard gain fitness benefits from nesting in Black-headed Gull Chroicocephalus ridibundus colonies and hence has been affected by major losses of European gull colonies in the last 30 years. The spread of alien fish species such as the Carp Cyprinus carpio, which compete with Pochard for food resources, is a problem in the Mediterranean region. Changing predation pressures (in some cases linked to invasive alien mammals) are also implicated in some areas. Relatively modest numbers breeding in the UK, France and the Netherlands have remained stable or increased over the same recent span of years, confirming that different factors currently affect Pochard breeding abundance throughout its range. We urgently need better information relating to key factors affecting Pochard breeding success and abundance, which is currently showing an unfavourable conservation status throughout much of Europe Peer reviewed Article in Journal/Newspaper Black-headed Gull Chroicocephalus ridibundus Digital.CSIC (Spanish National Research Council) |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Aythya ferina Breeding Common Pochard Population declines Population stressors |
spellingShingle |
Aythya ferina Breeding Common Pochard Population declines Population stressors Fox, A.D. Caicergues, A. Banik, M.V. Devos, K. Dvorak, M. Ellermaa, M. Folliot, B. Green, Andy J. Grünenberg, C. Guillemain, M. Recent changes in the abundance of Common Pochard Aythya ferina breeding in Europe |
topic_facet |
Aythya ferina Breeding Common Pochard Population declines Population stressors |
description |
National accounts suggest that the Common Pochard Aythya ferina was an uncommon breeding bird throughout western Europe before 1850. Extensions to the breeding range in the late 19th century were potentially aided by the rapid development of managed fish-ponds in eastern Europe, which provided suitable novel habitat at that time. Expansion into western Europe followed in subsequent decades. Wetland and waterbody eutrophication throughout Europe, which likely provided food and cover for the birds, may have accelerated the rapid expansion from the 1950s until the early 1980s. Widespread declines in the last 30 years, especially in eastern Europe, where breeding numbers are highest, are possibly linked to intensification and/or abandonment of freshwater fish farming and changes in water quality. Studies show that Pochard gain fitness benefits from nesting in Black-headed Gull Chroicocephalus ridibundus colonies and hence has been affected by major losses of European gull colonies in the last 30 years. The spread of alien fish species such as the Carp Cyprinus carpio, which compete with Pochard for food resources, is a problem in the Mediterranean region. Changing predation pressures (in some cases linked to invasive alien mammals) are also implicated in some areas. Relatively modest numbers breeding in the UK, France and the Netherlands have remained stable or increased over the same recent span of years, confirming that different factors currently affect Pochard breeding abundance throughout its range. We urgently need better information relating to key factors affecting Pochard breeding success and abundance, which is currently showing an unfavourable conservation status throughout much of Europe Peer reviewed |
format |
Article in Journal/Newspaper |
author |
Fox, A.D. Caicergues, A. Banik, M.V. Devos, K. Dvorak, M. Ellermaa, M. Folliot, B. Green, Andy J. Grünenberg, C. Guillemain, M. |
author_facet |
Fox, A.D. Caicergues, A. Banik, M.V. Devos, K. Dvorak, M. Ellermaa, M. Folliot, B. Green, Andy J. Grünenberg, C. Guillemain, M. |
author_sort |
Fox, A.D. |
title |
Recent changes in the abundance of Common Pochard Aythya ferina breeding in Europe |
title_short |
Recent changes in the abundance of Common Pochard Aythya ferina breeding in Europe |
title_full |
Recent changes in the abundance of Common Pochard Aythya ferina breeding in Europe |
title_fullStr |
Recent changes in the abundance of Common Pochard Aythya ferina breeding in Europe |
title_full_unstemmed |
Recent changes in the abundance of Common Pochard Aythya ferina breeding in Europe |
title_sort |
recent changes in the abundance of common pochard aythya ferina breeding in europe |
publisher |
Wildfowl & Wetlands Trust |
publishDate |
2016 |
url |
http://hdl.handle.net/10261/146302 |
genre |
Black-headed Gull Chroicocephalus ridibundus |
genre_facet |
Black-headed Gull Chroicocephalus ridibundus |
op_relation |
Publisher's version http://wildfowl.wwt.org.uk/index.php/wildfowl/article/view/2638 Sí Wildfowl, 66: 22-40 (2016) http://hdl.handle.net/10261/146302 |
op_rights |
open |
_version_ |
1790609416149532672 |