Use of satellite images in mapping of biological diversity in Senegal
The aim of the project is to develop a method for mapping and monitoring of biological diversity in the Sahel zone. Sahel is undergoing marked environmental changes, affecting not only human populations but also ecological communities. These ongoing
processes have biological implications on both national and international levels. The Sahelian biotopes hold a number of endemic biological assets and constitute the main wintering ground for a significant number of Palearctic migratory bird species.
Palaeoecological evidence for environmental change during the last 200 years. I. Biological data
This paper reviews the role of biological data for assessing ecosystem change during the last 200 years, with examples from North America and Europe where most of this research, has to date, been concentrated.
A karszt biologiai produktum. (Karsts are biological products)
science has unambiguously demonstrated that most of the karst phenomena on the surface of the Earth reflect the effect of the activity of the biological world. (CK).
Charakteristik der chemischen und biologischen Ozeanologie der Ostsee. (Characterization of chemical and biological oceanology of the Baltic Sea)
the seasonal changes of the chemical and biological conditions in the surface layer, the long term changes of the chemical conditions in the stagnating deep water and long-term trends of chemical and biological processes in the Baltic Sea are discussed. (HL).
The role of biological weathering in periglacial areas : a study of weathering rinds in south Iceland
Experiments using fungi strains isolated from basaltic boulders allow one to decipher biological weathering. A historical approach using heterochronous moraines provides the opportunity to follow the life of weathering rinds and helps to build
Endolithic lichens, rapid biological weathering and Schmidt hammer R-values on recently exposed rock surfaces : Storbreen glacier foreland, Jotunheimen, Norway
The aim of this paper is to investigate the rate of biological weathering in the earlier stages, on more recently exposed surfaces, including moraine ridges that were deposited by the glacier in the 1980s and 1990s. This study demonstrates
the reduction in Schmidt hammer R-values that followed the rapid colonization by this endolithic lichen of pyroxene-granulite boulders on terrain deglaciated over the last 88 years on the Storbreen glacier foreland, Jotunheimen. The rapid rate of biological
Human ecology and biomedical research: a critical review of the International Biological Programme in New Guinea in Subsistence and survival: rural ecology in the Pacific.
Concentration flow erosion rates reduced through biological geotextiles
In this study, the effectiveness of 3 biological geotextiles in reducing soil losses during concentrated flow is investigated. Runoff was simulated in a concentrated flow flume, filled with an erodible sandy loam on 3 slope gradients. Treatments
included 3 biological geotextiles (borassus, buriti and bamboo) and one bare soil surface. The highest resistance against soil detachment was observed for the borassus covered soil surfaces. Overall, biological geotextiles are less effective in controlling