Water resources management (WRM) and wildlife conservation in the Lake Chad Basin

Selected Abstracts arian areas, also will increase effective patch sizes and w for movement of animals and some genetic mixing. For preservation of many species, firm control of access around reserves will be necessary. -from Authors 92L/00039 Locally based water quality planning: contributions to fish habitat protection E. Pinkerton, Canadian Journal of Fisheries & Aquatic Sciences, 48(7), 1991, pp 1326-1333. In 1985, legislation in the state of Washington authorized a central planning agency (the Puget Sound Water Quality Authority) to initiate local watershed planning exercises through counties or other local agencies. The essential elements of community mobilization to the goals and activities of water quality planning were analyzed by comparing key factors in highly successful planning processes with factors in less successful ones. -from Author 92L/00040 Reflection Riding Memorial Lecture: landscape a n d the conservation of meaning O. Rack_ham, RSA Journal, 139(5414), 1991, pp 903-915. Aspects and examples of trees and their history in the English landscape are explored: the nature of trees as living things, and their regenerative ability; ideas of change or stability of landscapes and of fashions in land use and afforestation; the importance of default, or neglect, giving rise to new 'second class' wildlife sites, and the value of these over planted or artificially created sites; and the past and present meanings attached to landscapes. -J.W.Cooper 92L/00041 The fir t r a d e C. Scott, Green Magazine, 2(3), 1990, pp 26-30. Britain is only able to supply 10% of its needs in timber. More and more softwood plantations are being established in seemingly redundant land to try and make the country self-sufficient in timber. A number of outstanding sites have been lost including dwarf shrub heath and blanket bog in Wales, N England, and Scotland. -M.Dean 92L/00042 Crying in the wilderness G. Cooper, Green Magazine, 2(4), 1990, pp 16-20. Outlines the major areas of conservation concern for Scotland, Wales, Dartmoor, Exmoor and the North Pennines, arguing in favour of an overaU national policy for conservation. -M.Dean 92L/00043 Drohende Vernichtung d e r Deckenmoore in Nordschottland (The imminent destruction of the blanket bogs in north Scotland) K. Dierssen, F. L. Twenhoven, S. Lutt & C. Wagner, Telma, 20, 1990, pp 329-334. The central regions of the Flow County were probably devoid of trees during the whole of the Postglacial. Afforestation of parts of this area will lead to the destruction of the blanket bogs. -from English summary 92L/00044 Das Rieseberger Moor (Landkrs. Helmstedt, Niedersachsen), ein Niedermoor im Nutzungswandel) (The Rieseberg Fen (District Helmstedt, Lower Saxony, Germany), a fen in the changes of use) F . W . Wiedenbein, Telma, 20, 1990, pp 143-155. Changes of use from wood supply over a period of peat extraction to a nature conservation area is shown. The fen lost its original significance as a floristical conservation areas by eutrophication, but its significance as an avifaunal and herpetofaunal conservation area has increased. -from English summary 92L/00045 Probleme im Artenschutz des Feuchtgrunlandes auf Niedermooren in Sehleswig-Hoistein (Problems of plant protection on wet grassland in SchleswigHolstein, G e r m a n y ) J. Eigner, Telma, 20, 1990, pp 261-272. In Schleswig-Holstein, in 1983, a programme began to register the extensive pasture, especially on fens, as a basis for a protection programme. For the conservation of a quarter of the endangered plant species protective measures are necessary. -from English summary

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92L/00046 Probleme im Artenschutz des Feuchtgrunlandes auf Niedermooren in Schleswig.Hoistein (Problems of plant protection on wet grassland in Schleswig-

Holstein, Germany)

J. Eigner, Telma, 20, 1990, pp 261-272. In Schleswig-Holstein, in 1983, a programme began to register the extensive pasture, especially on fens, as a basis for a protection programme. For the conservation of a quarter of the endangered plant species protective measures are necessary. -from English summary 92L/00047 Ein Verfahren zur Bewertung der Schutzwurdigkeit und Regenerationsfahigkeit nordwestdeutscher Hochmoore (A method for the assessment of worthiness and capability of northwest G e r m a n raised bogs for protection a n d regeneration) S. Meyer, Telma, 20, 1990, pp 273-290. Valuation includes structural, spatial, geological, stratigraphical, hydrological, and biological apspects. Small untouched peat bogs, various degeneration stages of bogs, and cultivated peatlands can be classified by using a four range system. -from English summary 92L/00048 Der Natur zuliebe. Natursvhutzprojekt¢ von besondere nationaler Bedeutung (Nature as you would like it Nature protection projects of special national importance)

F. Dieterich, H. Galas, U. G. Rothklrch & C. Solbach, (Bundesministerium fur Umwelt, Naturschutz und Reaktorsicherheit, Bonn), 1990, 28 pp. This illustrated booklet deals with rescuing species of national German importance, with criteria for action, especially for wetlands. For September 1989 it describes 25 projects. -D J.Davis 92L/00049 Un site botanique a p r e s e r v e r : le marais du Bourget a Cervieres (Hautes.Alpes, France) (Botanical

site to conserve: Bourget marsh, Cervieres, HantesAlpes, France) M. Bournerias, Bulletin - Societe Botanique de France, Lettres Botaniques, 137(4-5), 1990, pp 293-303. The Bourget marsh is situated in the subalpine level, around 1860m high, in the heart of an alpine valley. A significant number of species legally protected in France remains in the marsh: Carex limosa, Hierochloe borealis, Salix daphnoides, and other plants that axe regionally rare and/or at their chorologic limlts. -from English summary 92L/00050 Water resources management (WRM) a n d wildlife conservation in the L a k e C h a d Basin C.S. Wanzie, Mammalia, 54(4), 1990, pp 579-585. The Lake Chad Basin has had a series of periods of droughts, which have resulted in the loss of vegetation, hence desertification and silting of streams. In order then to make water available for various uses in the subregion, man has constructed dams, drained certain areas in order to irrigate others, as well as sunk boreholes. The concentration of animals in such areas, especially in the dry season, has only resulted in the over-utilisation of limited areas of the ecosystem and the deaths of animals. To conserve wildlife, the author points out the dangers of a continuous water resources management in the Lake Chad Basin. -from Author 92L/00051 Wildlife conservation, ecological strategies and pastoral communities. A contribution to the understanding of p a r k s and people in East Africa M. Enghoff, Nomadic Peoples, 25-27, 1990, pp 93-107. Gives an overview of the current status of wildlife conservation in East Africa, followed by an historical account of the rise of these perceptions, in connection with the evolution of the policy of wildlife conservation. Central parts of pastoral ecological strategies that infringe on wildlife conservation are then discussed. -from Author