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Journal Article 2011-01-15

Autor: Ogutu, Joseph O. Piepho, Hans-Peter Dublin, H.T. Bhola, N. Reid, Robin S.

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,...

Enlace original: https://cgspace.cgiar.org/handle/10568/3951

Investigación en Agricultura
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Ogutu, Joseph O. ,  Piepho, Hans-Peter ,  Dublin, 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
Journal Article 2012-06-15

Autor: Bhola, N. Ogutu, Joseph O. Piepho, Hans-Peter Said, Mohammed Yahya Reid, Robin S. Hobbs, N.T. Olff, H.
Enlace original: https://cgspace.cgiar.org/handle/10568/32834

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Bhola, N. ,  Ogutu, Joseph O. ,  Piepho, Hans-Peter ,  Said, Mohammed Yahya ,  Reid, 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
Journal Article 2012-03-15

Autor: Ogutu, Joseph O. Owen-Smith, N. Piepho, Hans-Peter Kuloba, B. Edebe, J.

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 ...

Enlace original: https://cgspace.cgiar.org/handle/10568/16714

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Ogutu, Joseph O. ,  Owen-Smith, N. ,  Piepho, Hans-Peter ,  Kuloba, B. ,  Edebe, J. ,  [Dynamics of ungulates in relation to climatic and land use changes in an insularized African savanna ecosystem] ,  Dynamics of ungulates in relation to climatic and land use changes in an insularized African savanna ecosystem
Journal Article 2010-01-15

Autor: Ogutu, Joseph O. Piepho, Hans-Peter Dublin, H.T. Bhola, N. Reid, Robin S.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/468

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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] ,  Rainfall extremes explain interannual shifts in timing and synchrony of calving in topi and warthog
Journal Article 2016-03-15

Autor: Ladha, Jagdish Kumar Rao, Adusumilli Narayana Raman, Anitha K. Padre, Agnes Tirol Dobermann, Achim Gathala, Mahesh Kumar Kumar, Virender Saharawat, Yashpal S. Sharma, Sheetal Piepho, Hans-Peter Alam, Muhammad Mehboob Liak, Ranjan Rajendran, Ramasamy Reddy, Chinnagangannagari Kesava Parsad, Rajender Sharma, Parbodh C. Singh, Sati Shankar Saha, Abhijit Noor, Shamsoon

South Asian countries will have to double their food production by 2050 while using resources more efficiently and minimizing environmental problems. Transformative management approaches and technology solutions will be required in the major grain-producing areas that provide the basis for future...

Enlace original: https://cgspace.cgiar.org/handle/10568/89882

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Ladha, Jagdish Kumar ,  Rao, Adusumilli Narayana ,  Raman, Anitha K. ,  Padre, Agnes Tirol ,  Dobermann, Achim ,  Gathala, Mahesh Kumar ,  Kumar, Virender ,  Saharawat, Yashpal S. ,  Sharma, Sheetal ,  Piepho, Hans-Peter ,  Alam, Muhammad Mehboob ,  Liak, Ranjan ,  Rajendran, Ramasamy ,  Reddy, Chinnagangannagari Kesava ,  Parsad, Rajender ,  Sharma, Parbodh C. ,  Singh, Sati Shankar ,  Saha, Abhijit ,  Noor, Shamsoon ,  [Agronomic improvements can make future cereal systems in South Asia far more productive and result in a lower environmental footprint] ,  Agronomic improvements can make future cereal systems in South Asia far more productive and result in a lower environmental footprint
Journal Article 2009-02-10

Autor: Ogutu, Joseph O. Piepho, Hans-Peter Dublin, H.T. Bhola, N. Reid, Robin S.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/273

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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] ,  Dynamics of Mara-Serengeti ungulates in relation to land use changes
Journal Article 2011-09-1

Autor: Ogutu, Joseph O. Owen-Smith, N. Piepho, Hans-Peter Said, Mohammed Yahya

Populations of many wild ungulate species in Africa are in decline largely because of land-use changes and other human activities. Analyses that document these declines and advance our understanding of their underlying causes are fundamental to effective management and conservation of wild ungula...

Enlace original: https://cgspace.cgiar.org/handle/10568/3775

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Ogutu, Joseph O. ,  Owen-Smith, N. ,  Piepho, Hans-Peter ,  Said, Mohammed Yahya ,  [Continuing wildlife population declines and range contraction in the Mara region of Kenya during 1977-2009] ,  Continuing wildlife population declines and range contraction in the Mara region of Kenya during 1977-2009
Presentation 2011-09-15

Autor: Kasse, F.N. Makita, K. Siegmund-Schultze, M. Piepho, Hans-Peter Grace, Delia Kang'ethe, Erastus K. Zárate, Anne Valle
Enlace original: https://cgspace.cgiar.org/handle/10568/12464

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Kasse, F.N. ,  Makita, K. ,  Siegmund-Schultze, M. ,  Piepho, Hans-Peter ,  Grace, Delia ,  Kang'ethe, Erastus K. ,  Zárate, Anne Valle ,  [Choice of breeds and husbandry practices influencing the safety of milk and milk products in smallholder dairy farms in peri-urban Nairobi, focusing on brucellosis] ,  Choice of breeds and husbandry practices influencing the safety of milk and milk products in smallholder dairy farms in peri-urban Nairobi, focusing on brucellosis
Journal Article 2008

Autor: Ogutu, Joseph O. Piepho, Hans-Peter Dublin, H.T. Bhola, N. Reid, S.

Understanding long-term climatic variability is basic to wise management and conservation of biodiversity. We analysed temporal variations in the local rainfall, temperature, Normalized Difference Vegetation Index and the hemispheric El Niño-Southern Oscillation (ENSO), using the Southern Oscilla...

Enlace original: https://cgspace.cgiar.org/handle/10568/29982

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Ogutu, Joseph O. ,  Piepho, Hans-Peter ,  Dublin, H.T. ,  Bhola, N. ,  Reid, S. ,  [El Niño-Southern Oscillation, rainfall, temperature and normalized difference vegetation index fluctuations in the Mara-Serengeti ecosystem] ,  El Niño-Southern Oscillation, rainfall, temperature and normalized difference vegetation index fluctuations in the Mara-Serengeti ecosystem
Journal Article 2003

Autor: Piepho, Hans-Peter Ogutu, Joseph O.

This paper considers inference for the break point in the segmented regression or piece-wise regression model. Standard likelihood theory does not apply because the break point is absent under the null hypothesis. We use results by DAVIES for this type of non-standard set-up [Biometrika 64 (1977)...

Enlace original: https://cgspace.cgiar.org/handle/10568/35339

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Piepho, Hans-Peter ,  Ogutu, Joseph O. ,  [Inference for the break point in segmented regression with application to longitudinal data] ,  Inference for the break point in segmented regression with application to longitudinal data

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