Dynamique spatio-temporelle de l’hivernage de Grues cendrées en Algérie

Hafid, H., Hanane, S., Saheb, M. & Houhamdi, M. 2013. Dynamique spatio-temporelle de l’hivernage de Grues cendrées Grus grus en Algérie. Alauda 81 (3): 201-208.
PDF in ResearchGate.net

Abstract:

Spatio-temporal dynamics of wintering Common Cranes Grus grus in Algeria: a ten year survey. A ten year survey of wintering Common Cranes was carried out in the high plateaus of Algeria (Oran, M’sila, Sétif and Oum El-Bouaghi). The distribution and abundance showed an obvious spatio-temporal variability. The trend in numbers of this species showed a stability in all sites (except in Oum El-Bouaghi where the abundance trend has registered a significant decrease). This should be the result of high human disturbance and, to a lesser extent, to higher winter temperatures particularly at Oum El-Bouaghi. Moreover, the decreasing winter numbers in Algeria coincided with a marked increase in numbers in winter in Europe (Spain and France). Common winter census in North Africa and in Europe are necessary to have a better knowledge of the species’ population trend.

Common Cranes - Grues cendrées (Grus grus)

Grues cendrées – Common Cranes (Grus grus), Espagne  (Victoria Gracia on flickr, licence: CC-by-nc-sa)

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