Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 346416
Title Floodplain rehabilitation in Far North Cameroon: expected impact on bird life
Author(s) Scholte, P.; Kort, S. de; Weerd, M. van
Source Ostrich 71 (2000). - ISSN 0030-6525 - p. 112 - 117.
Department(s) Resource Ecology
Publication type Refereed Article in a scientific journal
Publication year 2000
Keyword(s) purple heron - west-africa - survival - drought
Abstract The Logone floodplain in the sahelo-Sudanian zone of Cameroon used to be a highly productive ecosystem. Perennial pastures and fish played a crucial role for fishermen, pastoralists and wildlife. The construction of an upstream dam reduced inundation causing widespread degradation Nonetheless, approximately 350 bird species have still been observed. They include eleven waterfowl species which surpass the IWRB/Rarnsar criterion one % of West African population). The few available surveys suggest that prior to the dam construction the area harbored an even more abundant birdlife. Presently possibilities exist to release excess water for floodplain rehabilitation. In 1994, a pilot release has been executed to verify predicted advantages for men and wildlife. Larger scale rehabilitation of the Logone floodplain is formulated, based on the pilot release results. Annual total waterfowl, as well as heron colony counts have been executed showing an increase in bird numbers. Data variability questions somewhat the conclusion that this has been exclusively clue to increased flooding. Additionally, bird populations of degraded annual grasslands and well flooded perennial grasslands have been assessed by line transacts. Results showed the much higher numbers of waterfowl and passerines in perennial grassland. Hydrological and vegetation monitoring showed a change of annual into perennial grassland due to the re-flooding, which might lead to increased bird populations. Questions remain how to extrapolate these findings to the entire area to be re-flooded, justifying continuous counting and studying factors limiting bird populations. Such a study started for the Black Crowned Crane, a resident flagship species. For migratory species, surveys are recommended to assess thr role of other wetlands in the Lake Chad basin.
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