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The spectral changes of deforestation in the Brazilian tropical savanna
Environmental Monitoring and Assessment, 2014The Cerrado is a biome in Brazil that is experiencing the most rapid loss in natural vegetation. The objective of this study was to analyze the changes in the spectral response in the red, near infrared (NIR), middle infrared (MIR), and normalized difference vegetation index (NDVI) when native vegetation in the Cerrado is deforested.
Trancoso, Ralph +2 more
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Fire in Australian Tropical Savannas
1982Savannas have been defined in many ways. In this paper Australian tropical savannas are defined as communities in which the grass component is often predominant but in which predominance may vary between grassy and woody components. The grassy-woody status is determined not only by static landscape factors, but also by the dynamic interactions of fire ...
C. J. Lacey, J. Walker, I. R. Noble
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Mineral Nutrition: Tropical Savannas
1993Tropical savannas are ecosystems characterized by a continuous herbaceous cover of heliophilous bunch grasses and sedges, almost exclusively with the C4 photosynthetic pathway, that show a clear seasonality related to water stress (Sarmiento 1984; Cole 1986; Frost et al. 1986). Woody species (shrubs, trees, and palms) occur in varying density depending
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Conclusion: Characteristic Features of Tropical Savannas
1982The foregoing chapters illustrate the diverse nature of the tropical savannas of the southern continents. They also highlight both the rudimentary state of our knowledge of these systems and the lack of any unifying concepts relating to their structure and functioning. Two main factors account for this situation.
Brian J. Huntley, Brian H. Walker
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Biodiversity and Stability in Tropical Savannas
1996The stability of savanna plant communities depends on the kind, intensity, and extent of perturbation. This chapter will discuss some aspects of the nature of perturbations taking place in savanna communities, and will put forward the hypothesis that the relative stability of a community on the face of a perturbation depends on its floristic structure.
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Tropical pyomyositis in the Nigerian Savanna.
Tropical and geographical medicine, 1978Ninety cases of tropical pyomyositis from the Nigerian Savanna are described. This is the first report from a hot and dry area of the tropics. Many of the features are similar to previous reports but affection of the younger age group is found to be a reflection of the age distribution of the population. Greater involvement of the left side of the body,
G O, Ladipo, Y F, Fakunle
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Tropical Savanna Vegetation of the Llanos of Colombia
Ecology, 1967The Llanos Orientales of Colombia are between 3° and 7° lat N, extending as a level plain between 600 and 200 m above sea level, east of the Andes Mountains. The hot tropical climate shows a seasonal pattern of rainfall, divided between one rainy season and one dry season.
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