Search
Now showing items 41-50 of 129
Aquatic ecosystem responses to fire and flood size in the Okavango Delta: observations from the seasonal floodplains
(Springer, http://www.springer.com, 2010-07-19)
The frequency of fires in the Okavango Delta seasonal floodplains peaked at an intermediate frequency of flooding. Floodplains are commonly burnt every 3–5 years. This study showed fundamental changes in ecosystem properties ...
Tropical wetlands: seasonal hydrologic pulsing, carbon sequestration and methane emissions
(Springer, http://www.springer.com, 2010)
This paper summarizes the importance of climate on tropical wetlands. Regional hydrology and carbon dynamics in many of these wetlands could shift with dramatic changes in these major carbon storages if the inter-tropical ...
Relative effects of visualized and verbal presentation methods in communicating environmental information among stakeholders: Okavango Delta, Botswana
(http://www.informaworld.com, 2011-04-12)
The present study examined the relative effectiveness of 2 public instructional
communication methods in improving selected predictors of knowledge-sharing
behaviors among communities in the Okavango Delta, Botswana. A ...
Functional conservation areas and the future of Africa's wildlife
(Wiley, 2010-11)
Ungulate populations in African conservation areas (CAs) are in widespread decline, which can largely be attributed to a lack of functionality of the area encompassed by the CAs themselves. We present evidence from a wide ...
Forest transition pathways in Asia - studies from Nepal, India, Thailand, and Cambodia
(Taylor & Francis, 2011-06-03)
Tropical forest habitat continues to decline globally, with serious consequences for environmental sustainability. The South/Southeast Asian landscapes represent one of the most challenging parts of the world to study ...
Nutrient limitations on aboveground grass production in four savanna types along the Kalahari Transect
(Elsevier, 2010-02-19)
The Kalahari Transect (KT) is an International Geosphere–Biosphere Programme mega-transect designed
to examine hydrological and ecological patterns and processes throughout the savannas of southern
Africa. The KT traverses ...
The tropical African mercury anomaly:lower than expected mercury concentrations in fish and human hair
(Elsevier, 2011)
Mercury is a neurotoxin and global pollutant, and wetlands and newly flooded areas are known to be sites of enhanced production of monomethylmercury, the form of mercury that is readily biomagnified in aquatic food chains ...
Status of native woody species diversity and soil characteristics in an exclosure and in plantations of Eucalyptus globulus and Cupressus lusitanica in Northern Ethiopia
(BioOne, www.bioone.org, 2011-05)
Exclusion of grazing animals and tree plantations are 2 methods that have been used for restoration of degraded lands in tropical semiarid areas. These 2 options can foster secondary forest succession by improving soil ...
Lake Ohrid, Albania, provides an exceptional multi-proxy record of environmental changes during the last glacial-interglacial cycle
(Elsevier, 2010-01-11)
Multi-proxy analyses on core JO2004-1 recovered from Lake Ohrid (40°55.000 N, 20°40.297E, 705 m a.s.l.)
provide the first environmental and climate reconstruction in a mountainous area in Southern Europe over
the last ...
The effects of tourism development on rural livelihoods in the Okavango Delta, Botswana
(Routledge (Taylor & Francis) www.routledge.com, 2010-01-19)
The Community-Based Natural Resource Management (CBNRM) program in Botswana
aims to achieve biodiversity conservation and rural development in rich biodiversity
areas like the Okavango Delta. CBNRM assumes that if rural ...