The increasing importance of the Wildlife Management Areas (WMAs) in Tanzania, where 17 WMAs are now functioning and 22 others are in various stages of development, begs the question of what successes have been achieved and what challenges remain to be addressed if this Community-Based Conservation model is to be sustained and even scaled up. There has not been a country-wide evaluation of WMAs since the pilot-phase evaluation in 2007 at a time when most WMAs were too new to yield firm projections for the long term.

Residents of Southern Africa depend on rangeland for food, livelihoods, and ecosystem services. Sustainable management of rangeland ecosystems requires attention to interactive effects of fire and grazing in a changing climate. It is essential to compare rangeland responses to fire and grazing across space and through time to understand the effects of rangeland management practices on biodiversity and ecosystem services in an era of global climate change.

Southern Ethiopia’s Lower Omo Valley is one of the most culturally and biologically diverse areas in the world, yet the Ethiopian government is transforming more than 375,000 hectares (1450 sq. miles) of the region into industrial-scale plantations for sugar and other monocrops.

Se analizó el crecimiento de fitoplancton y la tasa de pastoreo del microzooplancton in situ, en una estación fija de muestreo de octubre de 2007 a agosto de 2008, en la Ensenada de La Paz, México, utilizando el método de dilución. La tasa aparente de crecimiento de fitoplancton fue mayor en diciembre con 1,33 d-1 y menor en octubre con 0,35 d-1. La tasa de pastoreo fue máxima en abril con 0,86 d-1 y mínima en febrero y agosto con 0,38 d-1. La presión de pastoreo, medida como el porcentaje de la producción potencial removida (%PPR) fluctuó entre 28 y 76%.

Water scarcity and land degradation are widespread problems that affect agricultural productivity, food security and environmental quality in several parts of the world, particularly in the dry areas. Sustainable management of soil and water is necessary to optimize the use of limited rainwater for crop production and to decrease soil erosion. One management option is utilizing rainfall more efficiently through water harvesting. In arid areas, different types of water harvesting techniques (WHT) are being developed by

Variable and low rainfall patterns combined with increasing population pressure have led to natural resources degradation in the Mopti region of Mali. This has forced both agricultural and pastoral communities to transform their production systems and social relations. To assess the adaptive capacities of these agro-pastoral communities to climate change, a participatory survey was conducted in the region between February and May 2009. The survey covered in total 175 households, covering 60 households per agro-ecological zone (i.e.