Results 251 to 260 of about 687,559 (292)

Dynamics of savanna ecosystems

Journal of Vegetation Science, 1992
Theories concerning the factors involved in the dynamics of savannas, particularly the tree-grass interface, are reviewed. Emphasis is put on factors related to soil moisture, soil nutrients, fire and large herbivores. The distinction be- tween external (independent) and internal (dependent, interac- tive) environment is discussed and it is explained ...
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Agroecological restoration of savanna ecosystems

Ecological Engineering, 1998
Abstract As a result of deforestation, annual bush burning, overgrazing and intensive cultivation, most tropical forests have changed to derived savanna in many West African states. This change in vegetation has led to a decrease in rainfall and a change in many climatic conditions.
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Ecosystem Function in Savannas

2010
Savannas: Biogeographical and Ecological Perspectives Biogeography and Dynamics of Global Tropical and Subtropical Savannas: A Spatiotemporal View, M.J. Hill, M.O. Roman, and C.B. Schaaf Tree-Grass Interactions in Savannas: Paradigms, Contradictions, and Conceptual Models, N.P. Hanan and C.E.R.
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Estimation of erodibility in the savanna ecosystem, northern Ghana

Communications in Soil Science and Plant Analysis, 1995
Abstract This paper discusses the concept of erodibility being one of the main parameters needed for erosion risk assessments as well as presents some measurements of erodibility in the savanna ecosystem, northern Ghana, based on three different indices: aggregate stability, shear strength, and the Consistency Index. The study revealed that the overall
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Drosophilidae of the Brazilian Savanna, the forgotten ecosystem.

2005
Uploaded by Plazi for TaxoDros. We do not have abstracts.
Cahaves, N.B., Tidon, R.
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Aspects of the Stability and Resilience of Savanna Ecosystems

1982
Savannas are among the most variable of terrestrial ecosystems. They undergo large and frequent changes in production, composition and structure and they contain some of the worst examples of degradation by man. There are, accordingly, many references to them as “fragile” and “brittle” ecosystems, with frequent predictions of imminent “collapse”.
B. H. Walker, I. Noy-Meir
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Ecosystem structure and growth of the African savanna

Global and Planetary Change, 1993
Abstract Ecosystems are highly structured, interlocking sets of organismic and environmental interactions. Particular ecosystems reappear in the geological record, structured similarly regardless of their evolutionary history. Ulanowicz has hypothesized that energy throughput and compartmentalization are an important part of the evolutionary growth ...
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Mineralogical characterization of soils in the Savanna ecosystem

Research on Crops
The mineralogical composition of soil plays a crucial role in determining soil fertility and agricultural potential. Given the highly weathered and nutrient-poor nature of Savanna soils, understanding their mineralogical composition is essential for developing sustainable land management strategies that enhance nutrient availability, support crop ...
FAKOREDE B M, BABALOLA T S. ILORI A O A, FASINA A S, SHITTU O S   +3 more
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Lamto, structure, functioning, and dynamics of a Savanna Ecosystem

2006
Ill. Bibliogr.
Abbadie, Luc, Gignoux, Jacques, Le Roux, Xavier, Le Page, Michel   +3 more
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Infestation of African savanna ecosystems by subterranean termites

Ecological Complexity, 2015
Abstract This review is an analysis of the dimensions of termite infestation in African savannas. The aim of this work is to draw the attention of ecologists, conservationists, policy makers and farmers to the current and future threats of subterranean termites to the functioning and sustainability of such ecosystem habitats.
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