Aquatic Warbler (Acrocephalus paludicola) - BirdLife species factsheet

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VU	Aquatic Warbler Acrocephalus paludicola

IUCN Red List Criteria

Critically Endangered
Endangered
Vulnerable	A2c

IUCN Red List history

Year	Category
2008	Vulnerable
2004	Vulnerable
2000	Vulnerable
1996	Vulnerable
1994	Vulnerable
1988	Threatened

Range

	Estimate	Data quality
Extent of Occurrence breeding/resident (km²)	53,200	medium
Extent of Occurrence non-breeding (km²)	9,700	medium
Area of Occupancy breeding/resident (km²)	1,500	medium
Number of locations	>10 locations	-
Fragmentation	some	-

Population & trend

	Estimate	Data quality	Derivation	Year of estimate
No. of mature individuals	22,000 - 30,000	good	estimated (directly)	2007
Population trend	decreasing	medium	suspected	-
Decline (10 years/3 generations past)	30-49%	-	-	-
Number of subpopulations	>1	-	-	-
Largest subpopulation	>1,000	-	-	-
Population justification: 13,200 singing males (24,000 individuals) estimated 2007 by Lachmann and Flade.
Trend justification: This species probably declined rapidly until the late 1990s, as a result of the destruction of its habitat at a rate equivalent to 40% in ten years. The decline in the central European core population has recently been stopped owing to intensive management and conservation projects but other populations continue to decline through habitat loss and degradation.

Country/Territory distribution

Country/Territory	Occurrence status	Extinct	Breeding/ resident	Non-breeding	Passage
Algeria	vagrant
Austria	native	yes	yes
Belarus	native		yes
Belgium	native				yes
Bulgaria	native				yes
Croatia	native
Cyprus	vagrant
Czech Republic	native				yes
Denmark	vagrant
Egypt	vagrant
Estonia	vagrant
Finland	vagrant
France	native				yes
Germany	native		yes		yes
Ghana	unknown			yes
Greece	vagrant
Hungary	native		yes
Ireland	vagrant
Israel	vagrant
Italy	native				yes
Kazakhstan	vagrant
Latvia	native		yes
Lithuania	native		yes
Luxembourg	vagrant
Macedonia, the former Yugoslav Republic of	vagrant
Mali	unknown			yes
Malta	vagrant
Mauritania	unknown			yes
Montenegro	native	yes			yes
Netherlands	native				yes
Norway	vagrant
Poland	native		yes
Portugal	native				yes
Romania	native				yes
Russia (Central Asian)	native		yes
Russia (European)	native		yes
Senegal	native			yes
Serbia	native	yes			yes
Slovakia	native	yes			yes
Slovenia	native				yes
Spain	native				yes
Sweden	vagrant
Switzerland	native				yes
Tunisia	vagrant
Turkey	vagrant
Ukraine	native		yes
United Kingdom	native				yes
Western Sahara	vagrant

Important Bird Area Distribution

Country	IBA name
Belarus	Dikoe
Belarus	Lelchitsy-Ubort
Belarus	Mid-Pripyat
Belarus	Prostyr-Gnilaya Pripyat
Belarus	Servech
Belarus	Sporovski
Belarus	Vygonoshchanskoe
Belarus	Zvanets
France	Estuaire de la Gironde : marais de la rive nord
France	Marais de la Baie d'Audierne
Latvia	Liepaja lake
Lithuania	Nemunas delta regional Park
Lithuania	Zuvintas Biosphere Reserve
Poland	Biebrza river valley
Poland	Bubnow Marsh
Poland	Chelm calcareous marshes
Poland	Delta of the Swina river
Poland	Lower Odra river valley
Poland	Marshy Valley of the Narew River
Poland	Miedwie site
Poland	Narew river gaps
Poland	Rozwarowo Marshes
Poland	Upper Narew River Valley
Poland	Warta River Mouth
Poland	Wizna Swamps
Russia (European)	Kamsko-Yayvenski wetland
Russia (European)	Neman river Delta and the coast of the Curonian (Courish) Bay
Russia (European)	Nizhnekamskaya flood-plain
Russia (European)	Watershed of Bityug and Tsna rivers
Spain	Chingudi-Bidasoa estuary
Spain	Costa de la Muerte (North coast)
Ukraine	Pryp'yat' river valley
Ukraine	Shats'ki lakes
Ukraine	Stokhod river valley
Ukraine	Styr' river valley (Kolky village)
Ukraine	Supij marsh
Ukraine	Svydovets protected area
Ukraine	Syra Pogonya mire
Ukraine	Turiya river valley
Ukraine	Udaj river valley

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial landscapes (terrestrial)	Pastureland	suitable	non-breeding
Artificial landscapes (terrestrial)	Pastureland	suitable	breeding
Wetlands (inland)	Bogs, marshes, swamps, fens, peatlands	major	non-breeding
Wetlands (inland)	Bogs, marshes, swamps, fens, peatlands	major	breeding
Altitude - 200 m

Threats & impact

Threat (level 1)	Threat (level 2)	Timing	Scope	Severity	Impact
02 Agriculture & aquaculture	2.1.3 Ann/perenn non-timber crop: Agro-industry farming	continuing	majority	rapid decline	medium
05 Biological resource use	5.2.2 Gathering terrestrial plants: Unintentional effects (species is not target)	continuing	minority	rapid decline	medium
07 Natural system modifications	7.2.10 Water mngmnt/use: Large dams	continuing	minority	rapid decline	medium
11 Climate change & severe weather	11.2 Droughts	continuing	unknown	unknown	unknown

Recommended citation BirdLife International (2010) Species factsheet: Acrocephalus paludicola. Downloaded from http://www.birdlife.org on 30/7/2010

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

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