Malaria mosquito resistance to agricultural insecticides: Risk area mapping in Thailand PDF Download

Author: Overgaard, Hans
Publisher: IWMI
ISBN: 9290906448
Category : Malaria
Languages : en
Pages : 72

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Book Description
The purpose of this study was to identify risk areas in Thailand where insecticide resistance in malaria mosquitoes might develop as a consequence of crop protection activities in agriculture. The study provides guidelines on how to delineate risk areas. A review of insecticide resistance in disease vectors and the potential role of agricultural insecticides is presented.

Author: Serge Morand
Publisher: Springer
ISBN: 9812875271
Category : Medical
Languages : en
Pages : 333

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Book Description
This book pursues a multidisciplinary approach in order to evaluate the socio-ecological dimensions of infectious diseases in Southeast Asia. It includes 18 chapters written by respected researchers in the fields of history, sociology, ecology, epidemiology, veterinary sciences, medicine and the environmental sciences on six major topics: (1) Infectious diseases and societies, (2) Health, infectious diseases and socio-ecosystems; (3) Global changes, land use changes and vector-borne diseases; (4) Monitoring and data acquisition; (5) Managing health risks; and (6) Developing strategies. The book offers a valuable guide for students and researchers in the fields of development and environmental studies, animal and human health (veterinarians, physicians), ecology and conservation biology, especially those with a focus on Southeast Asia.

Author: Prasad Srinivasa Thenkabail
Publisher: IWMI
ISBN: 9290906464
Category : Agricultural mapping
Languages : en
Pages : 78

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Book Description
This research report presents the results of a global analysis of multi-temporal time series at nominal 10 kilometer pixel resolution. Statistics of irrigation at country level are derived from these maps for different seasons and for the entire year (annualized) for the nominal year of 1999. Three methods of area abstraction are used and compared, and three methods of accuracy assessment are applied. The annualized irrigated areas of the world at the end of the last millennium were about 480 Mha of which there were 263 Mha for season 1, 176 Mha for season 2, and 41 Mha for continuous cropping. Of this, Asia alone accounts for 78 percent (375 Mha) with 59 percent from China and India. The country statistics are compared with FAO country-level statistics (see Annex I). The IWMI GIAM 10 km V2.0 map were tested based on 3 sources of independent data resulting in accuracies between 84 and 91 percent with errors of omission not exceeding 16 percent and errors of commission less than 21 percent. The total area available for irrigation (TAAI; the nearest equivalent to FAO’s equipped area) was 412 Mha.

Author: Solomon Kibret
Publisher: IWMI
ISBN: 9290907061
Category : Koka Reservoir (Ethipoia)
Languages : en
Pages : 52

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Book Description
The construction of dams in Africa is often associated with adverse malaria impacts in surrounding communities. However, the degree and nature of these impacts are rarely quantified and the feasibility of manipulating reservoir water levels to control mosquito breeding has not been previously investigated in Africa. This report describes entomological and epidemiological studies conducted around the Koka Dam and Reservoir in Ethiopia. The research findings confirm the role of the reservoir in increasing malaria transmission and provide evidence that there is potential to use dam operation in integrated malaria control strategies.

Author: Mobin-ud-Din Ahmad
Publisher: IWMI
ISBN: 9290906553
Category : Agricultural systems
Languages : en
Pages : 48

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Book Description
Study carried out in Punjab, Pakistan.

Author: V. Y. Smakhtin
Publisher: IWMI
ISBN: 9290906499
Category : River engineering
Languages : en
Pages : 46

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Book Description
"CGIAR Challenge Program on Water & Food; Future Harvest"--Cover.

Author: Giordano, Meredith, Samad, Madar, Namara, Regassa
Publisher: IWMI
ISBN: 9290906502
Category : Irrigation
Languages : en
Pages : 37

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Book Description
The purpose of this paper is to summarize IIMI/IWMI’s past research and interventions related to irrigation management transfer and to document, to the extent possible, the academic, policy, and technical outcomes of these efforts. The application of a range of direct and indirect measurement techniques suggests an overall positive contribution from IWMI to IMT theory and application.

Author: Arlene B. Inocencio
Publisher: IWMI
ISBN: 9290906588
Category : Irrigation projects
Languages : en
Pages : 86

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Book Description
High irrigation investment costs together with declining world prices for food and the failures of a number of high profile past irrigation projects are the main reasons for the reluctance of development agencies and governments in sub-Saharan Africa to invest more resources in irrigation. This study aims to systematically establish whether costs of irrigation projects in sub-Saharan Africa are truly high, determine the factors which influence costs and performance of irrigation projects, and recommend cost-reducing and performance-enhancing options to make irrigation investments in the region more attractive. It analyzes 314 irrigation projects implemented from 1967 to 2003 in 50 countries in Africa, Asia, and Latin America funded by the World Bank, African Development Bank and the International Fund for Agricultural Development.

Author: Cullis, J.
Publisher: IWMI
ISBN: 9290906650
Category : Olifants River Watershed (South Africa)
Languages : en
Pages : 26

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Book Description
The present study explores the application of the Gini Coefficient, which has hitherto only been used for income and land distribution, to quantify the distribution of water resources. The tool is tested in the water-stressed Olifants Water Management Area, in South Africa. Using readily available information on water use registrations, water use estimates, and census data, two versions of the Gini Coefficient are calculated. The first measures the distribution of the allocation of direct water use in rural areas and was estimated at 0.96 in the study area. In other words, 99.5 percent of the rural households are entitled to useonly 5 percent of the available water. The second version calculates the distribution of the indirect benefits of water use in the form of direct employment. This is shown to have a Gini Coefficient of 0.64. Using the Gini Coefficient an assessment was also made of the impacts of different policy scenarios. It was found that by more than doubling the amount of water used by rural households from the current 225 cubic meters per household per annum (m3/hh/annum) to 610 m3/hh/annum, which would enable each household to meet its basic human needs of 50 litres/person/day and irrigate 1,000 square meters (m2), would reduce the Gini Coefficient significantly. Yet, this would only require the large-scale registered users to reduce their current irrigation water use entitlement by 6 percent or the largest ten users to reduce their use by 20 percent each.

Author: Kashaigili, J. J., McCartney, Matthew, Mahoo, H. F., Lankford, B. A., Mbilinyi, B. P., Yawson, D. K., Tumbo, S. D.
Publisher: IWMI
ISBN: 9290906456
Category : Wetland management
Languages : en
Pages : 49

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Book Description
This report presents the findings of a study to assess changes to flows into, and downstream of, the Usangu Wetlands, located in the headwaters of the Great Ruaha River, Tanzania. Hydrological data, in conjunction with remote sensing techniques, were used to provide insights into changes that have occurred to the Eastern Wetland. Results indicate that, between 1958 and 2004, inflows to the wetland declined by about 70 percent in the dry season months (July to November) as a consequence of increased human withdrawals, primarily for irrigation.