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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.Piepho, Hans-PeterDublin, H.T.Bhola, N.Reid, Robin S.[Dynamics of births and juvenile recruitment in Mara-Serengeti ungulates in relation to climatic and land use changes]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.Leeuw, Jan deOgutu, Joseph O.Said, Mohammed YahyaSaidimu, T.L.Kifugo, S.C.Kaelo, D.S.Reid, Robin S.[Mobility and livestock mortality in communally used pastoral areas: The impact of the 2005-2006 drought on livestock mortality in Maasailand]Mobility and livestock mortality in communally used pastoral areas: The impact of the 2005-2006 drought on livestock mortality in Maasailand

Bhola, N.Ogutu, Joseph O.Piepho, Hans-PeterSaid, Mohammed YahyaReid, Robin S.Hobbs, N.T.Olff, H.[Comparative changes in density and demography of large herbivores in the Masai Mara Reserve and its surrounding human-dominated pastoral ranches in Kenya]Comparative changes in density and demography of large herbivores in the Masai Mara Reserve and its surrounding human-dominated pastoral ranches in Kenya

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.Kifugo, S.C.Said, Mohammed YahyaNeselle, M.O.Gardingen, P. vanReid, Robin S.Ogutu, Joseph O.Herero, M.Leeuw, Jan de[Drivers and impacts of land-use change in the Maasai Steppe of Northern Tanzania: An ecological-social-political analysis]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-PeterDublin, H.T.Bhola, N.Reid, Robin S.[Rainfall extremes explain interannual shifts in timing and synchrony of calving in topi and warthog]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 YahyaOgutu, Joseph O.Kifugo, S.C.Makui, O.Reid, Robin S.Leeuw, Jan de[Effects of extreme land fragmentation on wildlife and livestock population abundance and distribution]Effects of extreme land fragmentation on wildlife and livestock population abundance and distribution

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-PeterDublin, H.T.Bhola, N.Reid, Robin S.[Dynamics of Mara-Serengeti ungulates in relation to land use changes]Dynamics of Mara-Serengeti ungulates in relation to land use changes

For a long time, trypanosomosis, spread by the tsetse fly Glossina, constrained human settlement in the Lambwe Valley, a south-western Kenya rangeland. After lengthy efforts to control tsetse over many years, the valley is currently experiencing an increase in human population growth rate, and r...


Muriuki, G.W.Njoka, T.J.Reid, Robin S.Nyariki, D.M.[Tsetse control and land-use change in Lambwe valley, south-western Kenya]Tsetse control and land-use change in Lambwe valley, south-western Kenya

Arid rangelands host a variety of drought-tolerant wildlife species, many of them requiring conservation efforts for the survival of their populations. The development of drinking water sources for people and livestock forms one of the main development interventions in these rangelands. However, ...


Leeuw, Jan deWaweru, M.N.Okello, O.O.Maloba, M.Nguru, P.Said, Mohammed YahyaAligula, H.M.Heitkonig, I.M.Reid, Robin S.[Distribution and diversity of wildlife in northern Kenya in relation to livestock and permanent water points]Distribution and diversity of wildlife in northern Kenya in relation to livestock and permanent water points

Livestock production systems in Africa are experiencing rapid changes in structure and function due to increased demands for livestock products from a more prosperous and ever-increasing human population. Some of these changes could lead to increased emissions of greenhouse gases. This paper expl...


Herrero, Mario T.Thornton, Philip K.Kruska, R.L.Reid, Robin S.[Systems dynamics and the spatial distribution of methane emissions from African domestic ruminants to 2030]Systems dynamics and the spatial distribution of methane emissions from African domestic ruminants to 2030

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