Analyse des fluctuations densitaires et de l'occupation de l'espace chez la Mérione de Shaw (Meriones shawi), en milieu semi-aride, au Maroc

Abstract : A pluriannual study of Meriones shawi, Gerbillus campestris and Lemniscomys barbarus in a semi-arid environment (Marrakech) revealed important synchronous annual variations in numbers (a peak in May-June, a low from August to October) due to: 1.- reproduction resuming in the automn (rains arriving, vegetation starting to grow again), and 2.- numbers declining in summer (drought, degraded vegetation, a pause in reproduction, disappearance of youngs and subadults). This trophic relationship is indicated by: 1.- Lower meriones densities on fallow land than on cultivated land, 2.- the lighter the annual rain, the less rodents there are. Modifications in the use of space boy meriones accompagny these density variations. The numbers of these subdesert rodents depend on food availability. These data raise the problem of spacing behaviour modifications in relation to density.
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01863818
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Submitted on : Wednesday, August 29, 2018 - 10:10:40 AM
Last modification on : Wednesday, July 3, 2019 - 12:26:01 PM

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  • HAL Id : hal-01863818, version 1

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Abdelkader Zaime, Jean-Yves Gautier. Analyse des fluctuations densitaires et de l'occupation de l'espace chez la Mérione de Shaw (Meriones shawi), en milieu semi-aride, au Maroc. Sciences et Techniques de l'Animal de Laboratoire, Afstal, 1988, 13 (1), pp.59-63. ⟨hal-01863818⟩

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