December 2007

Toxic Imports and the African Environment

Author(s): Oladele Ogunseitan

December 2007

Bacteria associated with the coral Echinopora lamellosa (Esper 1795) in the Indian Ocean - Zanzibar Region

  Infectious diseases are now known to have major effects on the structure and function of coral reef ecosystems throughout the world. The number of recognized coral diseases has increased dramatically. The problem was first recognized in the Caribbean in the early 1970’s but has now been reported to affect coral communities worldwide. There is little information regarding bacteria associated with...

Author(s): Magdalena Piskorska Garriet Smith and Ernesto Weil

December 2007

Application of remote sensing and GIS inLand use/land cover mapping and change detection in a part of south western Nigeria

  Mapping land use/land cover (LULC) and change detection using remote sensing and GIS techniques is an area of interest that has been attracting increasing attention.  This paper is an attempt to assess the changes in land use/land cover in some parts of south-western Nigeria over a 16 year period. The study made use of LandSat imageries of 1986 and 2002. The images were classified using Maximum...

Author(s): Daniel Ayalew Mengistu and Ayobami T. Salami