Title:

Trends in Namibian Waterbird Populations 5: Storks and Ibises

Author(s):
Publication Year:
2011
Abstract:

The fifth article in the series on trends in Namibian waterbird populations summarises count data for storks and ibises for the period 1977 to December 2008. For each species the Red Data Book (RDB) status, both global and Namibian, is given, the population trend as per Wetlands International, the number of times the species was counted, the number of times it has passed the 1% population criterion, the maximum count and the sites where it has passed the 1% population criterion. The local trend is calculated for the period 1991 to 2008 only because continuous data is available for that time. The computer programme TRIM was used for these analyses (see an earlier publication for the selection criteria and methods) (Lanioturdus 43(2) - Ed). For each species the number of sites used in the analysis, the number of observed counts (this includes zero counts), and the sites containing more than 10% of the total number counted are given.

Publication Title:

Lanioturdus

Volume:
44
Issue:
4
Pages:
13-17
Item Type:
Journal Article
Language:
en

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