Acrocephalus scirpaceus 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Aves Passeriformes Acrocephalidae

Scientific Name: Acrocephalus scirpaceus (Hermann, 1804)
Regional Assessments:
Common Name(s):
English Common Reed-warbler, Eurasian Reed-warbler, Eurasian Reed Warbler, European Reed Warbler, Reed Warbler
French Rousserolle effarvatte
Taxonomic Source(s): AERC TAC. 2003. AERC TAC Checklist of bird taxa occurring in Western Palearctic region, 15th Draft. Available at: # _the_WP15.xls#.

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2017
Date Assessed: 2016-10-01
Assessor(s): BirdLife International
Reviewer(s): Butchart, S. & Symes, A.
Contributor(s): Dowsett, R.J.
Facilitator/Compiler(s): Butchart, S., Ekstrom, J., Symes, A., Ashpole, J
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is extremely large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
Previously published Red List assessments:

Geographic Range [top]

Countries occurrence:
Afghanistan; Albania; Algeria; Angola; Armenia; Austria; Azerbaijan; Bahrain; Belarus; Belgium; Bosnia and Herzegovina; Botswana; Bulgaria; Burkina Faso; Burundi; Cameroon; Central African Republic; Chad; China; Congo, The Democratic Republic of the; Côte d'Ivoire; Croatia; Cyprus; Czech Republic; Denmark; Egypt; Eritrea; Estonia; Ethiopia; Finland; France; Gabon; Gambia; Georgia; Germany; Ghana; Gibraltar; Greece; Guinea; Guinea-Bissau; Hungary; Iran, Islamic Republic of; Iraq; Ireland; Israel; Italy; Jordan; Kazakhstan; Kenya; Kuwait; Kyrgyzstan; Latvia; Lebanon; Lesotho; Liberia; Libya; Liechtenstein; Lithuania; Luxembourg; Macedonia, the former Yugoslav Republic of; Malawi; Mali; Malta; Mauritania; Moldova; Montenegro; Morocco; Mozambique; Namibia; Netherlands; Niger; Nigeria; Norway; Oman; Palestinian Territory, Occupied; Poland; Portugal; Qatar; Romania; Russian Federation (Central Asian Russia, European Russia); Rwanda; Saudi Arabia; Senegal; Serbia; Sierra Leone; Slovakia; Slovenia; Somalia; South Africa; South Sudan; Spain; Sudan; Swaziland; Sweden; Switzerland; Syrian Arab Republic; Tanzania, United Republic of; Togo; Tunisia; Turkey; Turkmenistan; Uganda; Ukraine; United Arab Emirates; United Kingdom; Uzbekistan; Western Sahara; Yemen; Zambia; Zimbabwe
Benin; Faroe Islands; Iceland; Tajikistan
Additional data:
Continuing decline in area of occupancy (AOO):Unknown
Extreme fluctuations in area of occupancy (AOO):NoEstimated extent of occurrence (EOO) - km2:36600000
Continuing decline in extent of occurrence (EOO):UnknownExtreme fluctuations in extent of occurrence (EOO):No
Continuing decline in number of locations:Unknown
Extreme fluctuations in the number of locations:No
Upper elevation limit (metres):1400
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:In Europe, the breeding population is estimated to number 2,120,000-3,880,000 pairs, which equates to 4,240,000-7,760,000 mature individuals (BirdLife International 2015). Europe forms c.35% of the global range, so a very preliminary estimate of the global population size is 12,100,000-22,200,000 mature individuals, although further validation of this estimate is needed.

Trend Justification:  In Europe the overall trend from 1980-2013 was stable (EBCC 2015).
Current Population Trend:Stable
Additional data:
Number of mature individuals:12000000-22999999Continuing decline of mature individuals:Unknown
Extreme fluctuations:NoPopulation severely fragmented:No
Continuing decline in subpopulations:Unknown
Extreme fluctuations in subpopulations:NoAll individuals in one subpopulation:No

Habitat and Ecology [top]

Habitat and Ecology:This species breeds mainly in mature beds of reed (Phragmites) on the shores of lakes and fish ponds, and along rivers and ditches and locally, breeds in willow bushes in marshland, in reeds on edges of brackish lakes, exceptionally in corn fields. It also forages in adjacent herbaceous vegetation, scrub and low trees, such as willows (Salix). On the non-breeding grounds and on migration it uses reeds, thickets and tall grass, often along river courses and near lakeshores but also away from water in secondary bush, acacia (Acacia) and Lantana scrub, forest edge and garden hedges. In western and central Europe, breeding occurs from May to July or August, and in north-west Africa it breeds in April-July. The nest is a deep cup neatly woven from split reed blades, reed inflorescences, plant down and grass stems and lined with finer material. It is suspended from two to eight vertical reed stems, usually 15–200 cm over shallow water. Clutches can be three to five eggs but are most commonly four. The diet is mainly insects and their larvae, spiders (Araneae) and occasionally fruit, seeds and flowers. The species is entirely migratory, wintering in Africa south of the Sahara (Dyrcz et al. 2015).
Systems:Terrestrial; Freshwater
Continuing decline in area, extent and/or quality of habitat:Unknown
Generation Length (years):4.3
Movement patterns:Full Migrant

Threats [top]

Major Threat(s): The species has declined in some areas due to habitat destruction and the phenomenon of reedbed die-back, caused partly by eutrophication (Hagemeijer and Blair 1997). Reclamation of marshland has contributed to local declines (Dyrcz et al. 2015).

Conservation Actions [top]

Conservation Actions: Conservation Actions Underway
CMS Appendix II. Bern Convention Appendix II. There are currently no known conservation measures for this species within Europe.

Conservation Actions Proposed
Although this species is not currently threatened it would benefit from the conservation and maintenance of wetlands.

Amended [top]

Amended reason: Map updated: Changed NW Africa (subsp ambiguus) from Seasonality code 2 to 1 (resident); shaded N coast of Spain; shaded subespecie ammon (Lybia/Egypt border) and added  new breeding areas of subspecie avicenniae in Egypt (Sinai, Hamata) and W Arabia. EOO updated.

Citation: BirdLife International. 2017. Acrocephalus scirpaceus (amended version of 2017 assessment). The IUCN Red List of Threatened Species 2017: e.T22714722A118738083. . Downloaded on 19 September 2018.
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