Twenty-five rangeland sites were monitored over two decades (1984–2006) first to assess the impact of the 1983–1984 droughts on fodder resources, then to better understand ecosystem functioning and dynamics. Sites are sampled along the south–north bioclimatic gradient in Gourma (Mali), within thr...
Hiernaux, Pierre H.Y.
,
Mougin, E.
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Diarra, L.
,
Soumaguel, N.
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Lavenu, F.
,
Tracol, Y.
,
Diawara, M.
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[Sahelian rangeland response to changes in rainfall over two decades in the Gourma region, Mali]
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Sahelian rangeland response to changes in rainfall over two decades in the Gourma region, Mali
Through reconciling census totals with population structure, annual survival rates were estimated for the juvenile, yearling and adult stages of 10 ungulate species over 14 years or longer in South Africa's Kruger National Park. During this period four species maintained high abundance levels, wh...
Owen-Smith, N.
,
Mason, D.R.
,
Ogutu, J.
,
[Correlates of survival rates for 10 African ungulate populations: density, rainfall and predation]
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Correlates of survival rates for 10 African ungulate populations: density, rainfall and predation
International Water Management Institute
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[Proceedings of the Senior Stakeholders’ Meeting on Groundwater in the Jaffna Peninsula, Jaffna, Sri Lanka, 16 May 2013]
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Proceedings of the Senior Stakeholders’ Meeting on Groundwater in the Jaffna Peninsula, Jaffna, Sri Lanka, 16 May 2013
The West African Sahel rainfall regime is known for its spatio-temporal variability at different scales which has a strong impact on vegetation development. This study presents results of the combined use of a simple water balance model, a radiative transfer model and ERS scatterometer data to ...
Jarlan, L.
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Mazzega, P.
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Mougin, E.
,
Lavenu, F.
,
Marty, G.
,
Frison, P.L.
,
Hiernaux, Pierre H.Y.
,
[Mapping of Sahelian vegetation parameters from ERS scatterometer data with an evolution strategies algorithm]
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Mapping of Sahelian vegetation parameters from ERS scatterometer data with an evolution strategies algorithm
Barton, David N.
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Kakumanu, Krishna Reddy
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Kuppannan, Palanisami
,
Tirupathaiah, K.
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[Analysis of economic incentives for managing risk at the farm level in the context of climate change.]
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Analysis of economic incentives for managing risk at the farm level in the context of climate change.
Kizito, Fred
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Williams, Timothy O.
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McCartney, Matthew P.
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Erkossa, Teklu
,
[Green and blue water dimensions of foreign direct investment in biofuel and food production in West Africa: the case of Ghana and Mali.]
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Green and blue water dimensions of foreign direct investment in biofuel and food production in West Africa: the case of Ghana and Mali.
Bird, Jeremy
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[Water security and climate change challenges in developing countries]
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Water security and climate change challenges in developing countries
ERS wind scatterometer (WSC) and SSNI/I data are compared for monitoring the seasonal variation of herbaceous vegetation over a sahelian region. Temporal evolution of polarization difference brightness temperatures derived from SSM/I data and WSC backscattering coefficient acquired at 45° of inci...
Frison, P.L.
,
Mougin, E.
,
Jarlan, L.
,
Karam, M.A.
,
Hiernaux, Pierre H.Y.
,
[Comparison of ERS wind-scatterometer and SSM/I data for Sahelian vegetation monitoring]
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Comparison of ERS wind-scatterometer and SSM/I data for Sahelian vegetation monitoring
1. growth and nutrient-uptake responses of annual rangeland to defoliation were studied at 13 sandy range sites located across the Sahelian zone of mali between 1977 and 1989. 34 clipping experiments (site-years) were conducted using identical treatment designs with respect to the timing and freq...
Hiernaux, Pierre H.Y.
,
Turner, M.D.
,
[The effect of clipping on growth and nutrient uptake of Sahelian annual rangelands]
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The effect of clipping on growth and nutrient uptake of Sahelian annual rangelands