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AEWA Waterbird Trend Analysis: Methodology Review 2021


The Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA) is an intergovernmental treaty focussed on the conservation of migratory waterbirds and their associated habitats across their entire migratory range. AEWA produces a Conservation Status Report (CSR) every three years, which includes an assessment of waterbird population trends.

The work reported here provides a review of the existing approach for assessing the waterbird population trends, and explores the development of an alternative statistical approach.

The report is presented in two parts: (i) an introductory document which sets out the context and scope of the work; and (ii) the main statistical report.

Resource type Publication

Topic category Environment

Reference date 2021··

Zuur, A.F. and Ieno, E.N. 2021. AEWA Waterbird Trend Analysis: Methodology Review. Contracted report to JNCC (Contract No. C20-0419-1492).

This report presents statistical modelling of waterbird population trends explored through Red Knot data from the UK sampled between 1975 and 2018, and African Oystercatcher data sampled from South Africa and Namibia between 1992 and 2018.

Responsible organisation
Communications, JNCC publisher

Limitations on public access There are no limitations on public access to the documents published here

Use constraints All material is copyright of JNCC. All reasonable requests for scientific publication based on the outputs of this work will be supported.

Metadata date 2021·05·24

Metadata point of contact
Communications, JNCC

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