Reviews procedures for obtaining reliable information on animal populations, other ecological features and land use generally from low-flying aircraft by direct observation or conventional photography, with reference to types of sampling unit, and the relative merits of unstratified systematic and stratified random sampling.
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Showing items 1 through 9 of 37.-
Library ResourceJournal Articles & BooksDecember, 1981
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Library ResourceReports & ResearchDecember, 1981Colombia, Central America, South America
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Library ResourceJournal Articles & BooksDecember, 1981
Evaluates the usefulness of direct data collection from low-flying light aircraft for inventory & monitoring animal population & other rangeland features, viz. water bodies, vegetation structure & greenness and human settlements, for planning and management purposes.
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Library ResourceReports & ResearchDecember, 1981Central America, South America
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Library ResourceReports & ResearchDecember, 1981Central America, South America
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Library ResourceJournal Articles & BooksDecember, 1981Africa, Eastern Africa
A study on smallholder dairy development in the East African highlands. Looks into the production systems and development constraints and priorities. Discusses genetic factors, nutrition, disease, management, labour, marketing and pricing policies. Summarises research and development experiences.
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Library ResourceJournal Articles & BooksDecember, 1981
Examines economic aspects of browse development, w. data on browse, wood, gum and crop production, international rate of return and cost prices on atriplex and acacia plantations in tropical Africa.
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Library ResourceReports & ResearchDecember, 1981Brazil, Central America, South America
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Library ResourceJournal Articles & BooksDecember, 1981Colombia, Central America, South America
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Library ResourceConference Papers & ReportsDecember, 1981Colombia, Central America, South America
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