Aves, p�le ornithologique de Natagora

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Aves, 42/1-2 | 2005 | 103-120

  Evolution of the populations of the Black Grouse (Tetrao tetrix) in the belgian Hautes-Fagnes in regard with the modifications in ecological parameters of the habitat
Keulen, Ch., Charlet, O., Poncin, P. & Ruwet, J.-C.

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Article summary

During the last thirty-seven years the population of Black Grouse in the Belgian Hautes-Fagnes has undergone a long declining trend. In view of this critical situation, a restoration plan for the species has been lauched. Habitat selection by cocks and hens was investigated in the main parts of the SAC, during eight years. The diet composition was also studied by analysing droppings collected all round the year. Results show that key factors in habitat selection for Black Grouse are the quality of the Ericaceae cover, the opening of the landscape, the possibility to find flat place to display, the presence of open woods (Birch and Rowan) and the possibility of burrowing igloos during snow periods. Considering the first results from the study, the Forestry Districts have undertaken different measures to improve Black Grouse habitats.

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Tétras lyre
Tetrao tetrix

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