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Acrocephalus paludicola
– Vulnerable
Taxonomy
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Kingdom:
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ANIMALIA
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Phylum:
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CHORDATA
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Class:
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AVES
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Order:
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PASSERIFORMES
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Family:
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SYLVIIDAE
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Scientific Name:
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Acrocephalus paludicola
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Species Authority:
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(Vieillot, 1817)
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Common Name/s:
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Assessment Information
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Red List Category & Criteria:
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VU A2c+3c ver 3.1 (2001)
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Year Assessed:
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2004
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Assessor/s:
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BirdLife International
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Evaluator/s:
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Capper, D., Callaghan, D., Ekstrom, J. & Peet, N. (BirdLife International Red List Authority)
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Justification:
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Recent surveys have discovered previously unknown populations of this species, resulting in a substantially increased population estimate from that made in 1994. However, it has probably declined rapidly, as a result of the destruction of its habitat at a rate equivalent to 40% in the last 10 years. It therefore qualifies as Vulnerable. Declines are predicted at a similar rate in the next 10 years.
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History:
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| 1988 | - | Threatened (Collar and Andrew 1988) |
| 1994 | - | Vulnerable (Collar, Crosby and Stattersfield 1994) |
| 2000 | - | Vulnerable (BirdLife International 2000) |
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Geographic Range
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Range Description:
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Acrocephalus paludicola breeds across a highly fragmented range in (numbers are of singing males) Hungary (6001), Poland (2,900-3,000), Belarus (7,300-13,0003), Ukraine (2,400-3,4001), Russia (10-500 in European Russia, possibly 2,000-11,000 in western Siberia1), Germany (40-50) and Lithuania (250-4001). It is thought to winter in sub-Saharan west Africa, but the wintering range is poorly known. Two-thirds of the known population has been discovered since 1995, and the total population, excluding potential west Siberian breeders, is estimated at 13,500-21,000 singing males1. Since 1970, it is likely to have declined significantly as a result of destruction of 80-90% of its habitat in the river systems of upper Pripyat, Yaselda and Biebrza/Narew. These systems hold approximately 75% of the European population.
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Range Map:
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 (click for detailed map)
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Countries:
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Native:
Belarus; Belgium; Bulgaria; Croatia; Czech Republic; France; Germany; Hungary; Latvia; Lithuania; Netherlands; Poland; Portugal; Romania; Russian Federation; Senegal; Slovenia; Spain; Switzerland; Ukraine; United Kingdom
Vagrant:
Algeria; Cyprus; Denmark; Egypt; Estonia; Finland; Greece; Ireland; Israel; Jordan; Kazakhstan; Luxembourg; Macedonia, the former Yugoslav Republic of; Malta; Norway; Oman; Sweden; Tunisia; Turkey; Western Sahara
Regionally extinct:
Austria; Italy; Serbia; Slovakia
Uncertain presence and origin:
Ghana; Mali; Mauritania
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Population
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Population Trend:
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Habitat and Ecology
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Habitat and Ecology:
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It breeds in lowland marsh habitats (mostly sedge fen mires) with water less than 10 cm deep1. It winters in similar habitats and, on migration, favours low stands of sedge and reed near open water.
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System:
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Terrestrial; Freshwater
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Threats
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Threats:
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The most important threats are loss of breeding habitat owing to drainage for agriculture and peat extraction, damming of floodplains, unfavourable water management and the canalisation of rivers1. Habitat degradation is widespread where traditional fen management has ceased allowing succession to unsuitable overgrown reedbed, scrub or woodland1. Uncontrolled fires in spring and summer pose a direct threat to birds and nests, and can burn out the upper peat layer of fens1. In the wintering grounds, drought, wetland drainage, intensive grazing, succession to scrub, desertification and salinisation of irrigated soils are all potential threats1.
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Conservation Actions
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Conservation Actions:
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Conservation measures underway:
CMS Appendix I and II. It is legally protected in Belarus, Germany, Hungary and Poland. Key breeding sites in Belarus, Germany, Hungary and Poland are within protected areas1. Habitat is actively managed in Poland. Belarus, Hungary and Poland have monitoring programmes1. Studies on halting succession have been conducted in Belarus2. A European action plan was published in 1996.
Conservation measures proposed:
Conduct surveys in western Siberia. Implement a monitoring programme1. Protect key breeding sites and develop management plans. Promote protection of the species and its habitat in wintering areas and along the migration route. Ensure full legal protection.
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