Download or read book New Strategies in Locust Control written by Stephan Krall and published by Springer Science & Business Media. This book was released on 1997-12-01 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the late eighties large-scale control operations were carried out to control a major desert locust upsurge in Africa. For the first time since the banning of organochlorine pesticides these operations relied mainly on non-persistent pesticides such as organophosphates and pyrethroids. The amount of pesticides sprayed and the area covered were probably the highest in the history of locust control and raised criticism with respect to efficacy, economic viability and environmental impact. As a consequence, applied research into the problem was intensified, both at the national and the international level, with the goal of finding new and environmentally sound approaches and solutions to locust and grasshopper control. Emphasis was laid on developing new control agents and techniques.
Download or read book Greenhouse Gas Emissions Fluxes and Processes written by A. Tremblay and published by Springer Science & Business Media. This book was released on 2011-04-30 with total page 743 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a time when an unquestionable link between anthropogenic emissions of greenhouse gases and climatic changes has finally been acknowledged and * widely documented through IPCC reports, the need for precise estimates of greenhouse gas (GHG) production rates and emissions from natural as well as managed ecosystems has risen to a critical level. Future agreements between nations concerning the reduction of their GHG emissions will - pend upon precise estimates of the present level of these emissions in both natural and managed terrestrial and aquatic environments. From this viewpoint, the present volume should prove to a benchmark contribution because it provides very carefully assessed values for GHG emissions or exchanges between critical climatic zones in aquatic en- ronments and the atmosphere. It also provides unique information on the biases of different measurement methods that may account for some of the contradictory results that have been published recently in the literature on this subject. Not only has a large array of current measurement methods been tested concurrently here, but a few new approaches have also been developed, notably laser measurements of atmospheric CO concentration 2 gradients. Another highly useful feature of this book is the addition of - nitoring and process studies as well as modeling.
Download or read book Water 1975 written by and published by . This book was released on 1975 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conservation de la For t Dense en Afrique Centrale Et de L Ouest written by Kevin M. Cleaver and published by World Bank Publications. This book was released on 1992 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume brings together selected papers presented and discussed at the Conference on Conservation of West and Central African Rainforests, held in Abidjan, November 5-9, 1990.
Download or read book Traditional Forest Related Knowledge written by John A. Parrotta and published by Springer Science & Business Media. This book was released on 2011-10-14 with total page 639 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exploring a topic of vital and ongoing importance, Traditional Forest Knowledge examines the history, current status and trends in the development and application of traditional forest knowledge by local and indigenous communities worldwide. It considers the interplay between traditional beliefs and practices and formal forest science and interrogates the often uneasy relationship between these different knowledge systems. The contents also highlight efforts to conserve and promote traditional forest management practices that balance the environmental, economic and social objectives of forest management. It places these efforts in the context of recent trends towards the devolution of forest management authority in many parts of the world. The book includes regional chapters covering North America, South America, Africa, Europe, Asia and the Australia-Pacific region. As well as relating the general factors mentioned above to these specific areas, these chapters cover issues of special regional significance, such as the importance of traditional knowledge and practices for food security, economic development and cultural identity. Other chapters examine topics ranging from key policy issues to the significant programs of regional and international organisations, and from research ethics and best practices for scientific study of traditional knowledge to the adaptation of traditional forest knowledge to climate change and globalisation.
Download or read book Radiocarbon After Four Decades written by Ervin Taylor and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radiocarbon After Four Decades: An Interdisciplinary Perspective commemorates the 40th anniversary of radiocarbon dating. The volume presents discussions of every aspect of this dating technique, as well as chronicles of its development and views of future advancements and applications. All of the 64 authors played major roles in establishment, development or application of this revolutionary scientific tool. The 35 chapters provide a solid foundation in the essential topics of radiocarbon dating: Historical Perspectives; The Natural Carbon Cycle; Instrumentation and Sample Preparation; Hydrology; Old World Archaeology; New World Archaeology; Earth Sciences; and Biomedical Applications.
Download or read book Traditional Forest related Knowledge and Sustainable Forest Management in Africa written by John A. Parrotta and published by . This book was released on 2009 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Third International Symposium on Trichoptera written by G.P. Moretti and published by Springer. This book was released on 1981-10-31 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: A report on Gregarines of Trichoptera in the intestines of Salmo fario L.; Pigments and preservation in caddis larvae and pupae; Ordo Trichoptera et Homo insapiens; Observaions morphologiques, ethologiques et ecologiques sur Hydroptila hirra Moseli (Trichoptera: Hydroptilidae); Trichoptera from the baltic amber; Observations on the longitudinal distribution of Trichoptera larvae on a stream at Zempoala Mexico, Mexico; Emergence of Trichoptera from Trout Creek, Colorado, USA; Further observations on limnephilid life histories, based on the Rothamsted Insect Survey; Action de la photoperio de sur la maturation genitale des femelles de quelques Limnephilides; Changes in the profundal Trichoptera of Like Winnipeg 1928-32 to 1969; Studies of Neotropical caddisfliesXXVII: Anomalopsychidae, a new family of Trichoptera; Description of Hydropsyche larvae found in the Iberian peninsula; Predatory exclusion of Apatia zonella by Potamophylax cingulatus (Trichoptera: Limnephilidae) in Iceland; Distribution and habitat preferences of Icelandic Trichoptera; Effects of acclimation to temperature on the respiratory rate of some limnephilid larvae; Caddis fly systematics up to 1960 and a review of the genera (Insecta: Trichoptera); Caddis larvae in a dutch lowland stream; Trichoptera in the Ilona stream of the Matra Mountains, North Hungary; Faunistic investigations on Bulgarian Trichoptera to june, 1980 - with a revised check-list; Diversity of adult Trichoptera in a 'non-seasonal' tropical environment; The phenology of dispersal of several caddisfly (Trichoptera) species in the Island of Crete; New Trichoptera species and subspecies found in Italy; Comparative SEM and TEM studies on the androconial structure of Lasiocephala basalis Kol. and other Trichoptera; First list of italian Trichoptera; Gregarines in Trichoptera larvae; The Trichoptera component in the hydrophyton of Lake Chiusi (Tuscany); Ecological profiles in three Rhyacophila species; Morphological characteristics of Leptodrusus budtzi Ulm. in the immature stages; Taxonomic and morphological characteristics of the Sericostoma italicum Moret. and Sericostoma pedemontarum McL. larvae; Trichoptera in the intestinal content of certain fish species; Trichoptera of the Isle of Elba (Italy-Tuscany); A phylogeny and classification on family-group taxa of Leptoceridae (Trichoptera); Distribution of Trichoptera families in Australia with comments on the composition of fauna in the south-west; On the evolution of the phallus and other male terminalia in the Hydropsychidae. With a proposal for a new generic name; Bibliography of Trichoptera; Trichoptera distribution pattern differences found by sweeping, beating and light traps at three southern Bohemian sites; Why do Potamophylax cingulatus (Stheph.) (Trichoptera) larvae aggregate at pupation?; The influence of reservoir discharge on benthic fauna in the River Ter, N.E. Spain; Les larvae de Trichopteres de la riviere Llobregat (Catalogne, Espagne). Distribution longitudinale et relation avec la qualite de l'eau; Responses of sericostomatid caddisfly Gumaga nigricula (McL.) to environmental disruption; Trichoptera of Western Switzerland; Overwintering strategies in some Norwegian caddisflies; Preliminary interpretations of the distribution of Hydropsychidae in a regulated river; A progress report on Hydropsychidae from the Yvory Coast: Characters for the specific identification of larvae and population dynamics of four abundant species; Occurrence of the genus Hydropsyche in the North American Great Lakes; Cycles biologiques des Hydropsychidae et d'un Polycentropodidae (Trichoptera) dan le Rhone en amont de Lyon; The principles of case building behaviour in Trichoptera; Altitudinal distribution and abundance of Trichoptera in a Rocky mountain stream; Larval behaviour and dispersion of Pycnopsyche luculente (Betten) demosntrated by a unique tagging method (Limnephilidae: Trichoptera); Considerations on the relevance of immature stages to the systematics of Trichoptera; Quarternary sub-fossil Trichoptera larvae from a site in the English Lake District; A proposed setal nomenclature and homology for larval Trichoptera; Some aspects of the life history and feeding ecology of Dolophilodes distinctus (Walker) in two Ontario streams; Observations and a theory on the building style in Potamophylax latipennis (Curt.) Neb. - Trichoptera, Limnephilidae.
Download or read book Ecosystem Function in Heterogeneous Landscapes written by Gary M. Lovett and published by Springer Science & Business Media. This book was released on 2005-12-15 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: This groundbreaking work connects the knowledge of system function developed in ecosystem ecology with landscape ecology's knowledge of spatial structure. The book elucidates the challenges faced by ecosystem scientists working in spatially heterogeneous systems, relevant conceptual approaches used in other disciplines and in different ecosystem types, and the importance of spatial heterogeneity in conservation resource management.
Download or read book The Mediterranean region under climate change written by Collectif and published by IRD Éditions. This book was released on 2018-11-19 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has been published by Allenvi (French National Alliance for Environmental Research) to coincide with the 22nd Conference of Parties to the United Nations Framework Convention on Climate Change (COP22) in Marrakesh. It is the outcome of work by academic researchers on both sides of the Mediterranean and provides a remarkable scientific review of the mechanisms of climate change and its impacts on the environment, the economy, health and Mediterranean societies. It will also be valuable in developing responses that draw on “scientific evidence” to address the issues of adaptation, resource conservation, solutions and risk prevention. Reflecting the full complexity of the Mediterranean environment, the book is a major scientific contribution to the climate issue, where various scientific considerations converge to break down the boundaries between disciplines.
Download or read book Strontium and Strontium Compounds written by Peter Watts and published by World Health Organization. This book was released on 2010-06-07 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: "IPCS, International Programme on Chemical Safety"--Cover.
Download or read book National and International Standardization of Radiation Dosimetry written by International Atomic Energy Agency and published by . This book was released on 1978 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Assessment for Sustainable Development written by Pierre André and published by Presses inter Polytechnique. This book was released on 2004 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography on Mangrove Research 1600 1975 written by and published by . This book was released on 1981 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Guinea Vegetation written by K. Paijmans and published by Elsevier Science & Technology. This book was released on 1976 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Application of Tracers in Arid Zone Hydrology written by Eilon M. Adar and published by . This book was released on 1995 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Land Ocean Interactions in the Coastal Zone of West and Central Africa written by Salif Diop and published by Springer. This book was released on 2014-06-24 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the main focus of this book is on the estuaries, its scope goes well beyond this particular coastal feature. Indeed, the estuary can only be considered as part of the life cycle of the entire river and the marine area it feeds into: an area particularly subject to human and natural pressures. The main estuaries and deltas of West and Central Africa region provide a variety of goods and services to its coastal population. The most important of them are related to critical fish habitat, wood and charcoal from mangroves, as well as space for agriculture, aquaculture, urban development, tourism and transport. Particular emphasis has been made in this book on mangroves that play a significant role in terms of flood control, groundwater replenishment, coastline stabilization and protection against storms. They also retain sediments and nutrients, purify water, and provide critical carbon storage. Such hydrological and ecological functions explain the focus on serving mangrove ecosystems and the nearby communities, which draw significant income from fishing, rice production, tourism, salt extraction and other activities such as harvesting honey and medicinal plants, hence the need for preserving mangrove ecosystems to ensure sustainability of the estuaries and deltas of West and Central Africa region. The book has a foreword by Mr. Achim Steiner, United Nations Under-Secretary General and Executive Director of UNEP who is stating that credible and up-to-date information is essential for the public at large but more specifically for scientists, researchers, managers, decision-makers all working together in order to safeguard, protect and sustainably manage estuaries, deltas and lagoons, and the coastal and ocean waters of Western and Central Africa.
