Natality and recruitment govern animal population dynamics, but their responses to fluctuating resources, competition, predation, shifting habitat conditions, density feedback and diseases are poorly understood. To understand the influences of climatic and land use changes on population dynamics,...
Ogutu, Joseph O.
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Piepho, Hans-Peter
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Dublin, H.T.
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Bhola, N.
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Reid, Robin S.
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[Dynamics of births and juvenile recruitment in Mara-Serengeti ungulates in relation to climatic and land use changes]
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Dynamics of births and juvenile recruitment in Mara-Serengeti ungulates in relation to climatic and land use changes
There is consensus that pastoral mobility is beneficial for both pastoralists and the environment. However, rapid change arising from multiple factors, including landscape fragmentation, sedentarization, and demographic drivers might affect the effectiveness of this pastoral coping strategy in ti...
Nkedianye, D.
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Leeuw, Jan de
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Ogutu, Joseph O.
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Said, Mohammed Yahya
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Saidimu, T.L.
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Kifugo, S.C.
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Kaelo, D.S.
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Reid, Robin S.
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[Mobility and livestock mortality in communally used pastoral areas: The impact of the 2005-2006 drought on livestock mortality in Maasailand]
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Mobility and livestock mortality in communally used pastoral areas: The impact of the 2005-2006 drought on livestock mortality in Maasailand
Bhola, N.
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Ogutu, Joseph O.
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Piepho, Hans-Peter
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Said, Mohammed Yahya
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Reid, Robin S.
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Hobbs, N.T.
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Olff, H.
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[Comparative changes in density and demography of large herbivores in the Masai Mara Reserve and its surrounding human-dominated pastoral ranches in Kenya]
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Comparative changes in density and demography of large herbivores in the Masai Mara Reserve and its surrounding human-dominated pastoral ranches in Kenya
Land use change and human population growth are accelerating the fragmentation and insularization of wildlife habitats worldwide. The conservation and management of wildlife in the resultant 'island' ecosystems in the context of global warming is challenging due to the isolation and reduced size ...
Ogutu, Joseph O.
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Owen-Smith, N.
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Piepho, Hans-Peter
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Kuloba, B.
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Edebe, J.
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[Dynamics of ungulates in relation to climatic and land use changes in an insularized African savanna ecosystem]
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Dynamics of ungulates in relation to climatic and land use changes in an insularized African savanna ecosystem
In this article, we discuss the drivers, causes, and impacts of land-use change in the Maasai Steppe of northern Tanzania. Remote sensing data were used to analyze land-use change, and Geographical Information Systems (GIS) was used to link-up with wildlife population dynamics and livestock distr...
Msoffe, F.U.
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Kifugo, S.C.
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Said, Mohammed Yahya
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Neselle, M.O.
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Gardingen, P. van
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Reid, Robin S.
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Ogutu, Joseph O.
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Herero, M.
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Leeuw, Jan de
,
[Drivers and impacts of land-use change in the Maasai Steppe of Northern Tanzania: An ecological-social-political analysis]
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Drivers and impacts of land-use change in the Maasai Steppe of Northern Tanzania: An ecological-social-political analysis
We tested the hypothesis that ungulates time and synchronize births to match gestation and lactation with peak food availability and quality in seasonal environments, using ground counts of topi and warthog conducted over 174 months (July 1989–December 2003) in the Mara–Serengeti ecosystem. Durin...
Ogutu, Joseph O.
,
Piepho, Hans-Peter
,
Dublin, H.T.
,
Bhola, N.
,
Reid, Robin S.
,
[Rainfall extremes explain interannual shifts in timing and synchrony of calving in topi and warthog]
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Rainfall extremes explain interannual shifts in timing and synchrony of calving in topi and warthog
Fragmentation, degradation and loss of natural habitats are now recognised as major threats to wildlife conservation and mobile pastoralism in East African savannas. These processes are driven primarily by land tenure and policy, increasing human population, expansion of settlements and agricultu...
Said, Mohammed Yahya
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Ogutu, Joseph O.
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Kifugo, S.C.
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Makui, O.
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Reid, Robin S.
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Leeuw, Jan de
,
[Effects of extreme land fragmentation on wildlife and livestock population abundance and distribution]
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Effects of extreme land fragmentation on wildlife and livestock population abundance and distribution
Context: The processes regulating ungulate populations have been the focus of numerous studies. For the African buffalo (Syncerus caffer Sparrman) population inhabiting the Mara–Serengeti ecosystem, rinderpest was the primary regulatory factor up to the mid-1960s. Following reduction of rinderpes...
Dublin, H.T.
,
Ogutu, Joseph O.
,
[Population regulation of African buffalo in the Mara–Serengeti ecosystem]
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Population regulation of African buffalo in the Mara–Serengeti ecosystem
Increasing demands for meat and milk in developing countries and the associated production growth are driving the expansion of agriculture at the expense of environmental conservation and other land uses. While considerable attention has been directed at improving crop yields to alleviate the pre...
Bosire, Caroline K.
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Krol, M.S.
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Mekonnen, M.M.
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Ogutu, Joseph O.
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Leeuw, Jan de
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Lannerstad, Mats
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Hoekstra, A.Y.
,
[Meat and milk production scenarios and the associated land footprint in Kenya]
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Meat and milk production scenarios and the associated land footprint in Kenya
Animal population dynamics can be driven by changing climatic forcing, shifting habitat conditions, trophic interactions and anthropogenic influences. To understand these influences, we analyzed trends in populations of seven ungulate species counted during 15 years (1989–2003) of monthly monitor...
Ogutu, Joseph O.
,
Piepho, Hans-Peter
,
Dublin, H.T.
,
Bhola, N.
,
Reid, Robin S.
,
[Dynamics of Mara-Serengeti ungulates in relation to land use changes]
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Dynamics of Mara-Serengeti ungulates in relation to land use changes