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Wader and Waterbird Census at the Banc D'Arguin, Mauritania, January 2000

Report

Series: WIWO Report Series Volume: 81

By: Ward Hagemeijer(Author), Cor Smit(Author), Peter de Boer(Author), Arend van Dijk(Author), Neil Ravenscroft(Author), Marc van Roomen(Author), Mick Wright(Author)

146 pages, b/w maps, tables

Foundation Working Group International Wader and Waterfowl Research

Paperback | Dec 2004 | #152464
Availability: Usually dispatched within 1-2 weeks Details
NHBS Price: £19.99 $26/€23 approx

About this book

The Banc d'Arguin is one of the key wintering-areas for waders and other waterbirds in the world. Despite its relatively modest size it supports higher numbers of wintering waders than any other site on the East Atlantic flyway.Since 1973 only 4 more or less complete counts have been carried out in the area durina the wintering period of northern birds (in 1979, 1980,1990-94 and 1997). The more recent counts show that important changes in bird numbers have occurred. These changes, as well as the high intemational value of the Banc d'Arguin, justify more frequent monitoring. In January 2000 the Parc National Banc d'Arguin has been visited in order to carry out a count of all waders and waterbirds in the area. The expedition was carried out by a team of 7 experienced counters who performed a complete survey in 38 sub-areas.

The aims of the project were:
1. to carry out a complete census of waterbirds and compare the total numbers with published results of earlier censuses, in order to establish population developments.
2. collect counting results of well-defined count units, to be used later in analyses of future monitoring plans
3. transfer of knowledge and expertise to Mauritanian counterparts in setting up and carrying out a census like this
4. collect information to be able to organize future total counts as good and efficient as possible.

In total over more than 2,480,000 waterbirds were counted, including 2,350,000 waders. The results from 2000 confirm the picture from 1997: there is a rather large difference for many species between 1979/1980 and 1997/2000 but in general the numbers in 1997 and 2000 are higher than in 1990-94. Given the difficulties observers meet when counting the Banc d'Arguin (high densities, extremely large flocks, risk of exchange between areas) the differences between the 1997 and 2000 results can be considered as small.


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