نتایج جستجو برای: native livestock
تعداد نتایج: 123633 فیلتر نتایج به سال:
The Great Plains region of the United States is an agricultural production center for the global market and, as such, an important source of greenhouse gas (GHG) emissions. This article uses historical agricultural census data and ecosystem models to estimate the magnitude of annual GHG fluxes from all agricultural sources (e.g., cropping, livestock raising, irrigation, fertilizer production, t...
Poverty is now at the heart of development discourse; we discuss how it is measured and understood. We next consider the negative and positive impacts of livestock on pro-poor development. Taking a value-chain approach that includes keepers, users and eaters of livestock, we identify diseases that are road blocks on the 'three livestock pathways out of poverty'. We discuss livestock impacts on ...
This paper revisits the tragedy of the commons and examines the conditions under which externalities contribute to livestock cycles. Using a stylized intertemporal model capturing the main characteristics of African livestock producers, we show that externalities magnify livestock cycles triggered by occasional droughts. This is true even when producers are fully rational. Two forces fuel such ...
Key findings The results show that 77.4% of respondents rear an average of 2.97 livestock unit (LSU) per household. More than half of respondents who rear livestock (53.82%) dump livestock carcasses in the open fields. Ethnicity, age, education status, gender, livestock unit and involvement in conservation activities are the most significant predictors for the positive attitudes towards vulture...
Background and purpose: Livestock exploitation and grazing is the most important human activity, the choice of which depends on various factors. The importance of how to manage customary rangeland systems in recent decades has made it one of the challenges of rangeland management in the country. Rangelands need principled management and planning for existing resources (water, soil and plants) a...
This paper addresses the context of decisions about the application of biotechnology in livestock agriculture. It specifically addresses the role of transgenic livestock in agriculture. Key innovations in livestock genetics and reproductive technology in the last century have laid the foundations upon which genetic engineering can be applied to livestock in the post-genomics era. Transgenesis i...
ABOUT LADDER LADDER is a research project funded by the Policy Research Programme of the UK Department for International Development (DFID) that seeks to identify alternative routes by which the rural poor can climb out of poverty. LADDER is working with nearly 40 villages and 1,200 households in Uganda, Tanzania, Malawi and Kenya to discover the blocking and enabling agencies in the institutio...
The objectives of this study were to evaluate woody-species composition and seed density in the soil bank (SSB) a dry subtropical forest with different disturbance regimes assess role leaf litter as reservoir disturbed forests. Study area: western Argentine Chaco region. Climate is seasonal semiarid, fire season coincides cool periods. In first step, we evaluated species soils forests four comb...
Burrowing small mammals in grasslands have long been regarded as pests because they compete for forage with livestock and reduce the forage availability for livestock by destroying pastures through their intensive digging activity. In order to investigate forage competition between the Mongolian Pika (Ochotona pallasi) and livestock an exclosure experiment consisting of four different treatment...
Differences in population size structures characterize grass response to long‐term livestock removal
Questions How does desert grassland vegetation respond to long-term grazing removal? Is grass response the result of differences in number or size plants? Does differ over time and relation precipitation patterns? Location Santa Rita Experimental Range, southwestern United States. Methods Four times between 2011 2020, we measured cover woody plants native non-native perennial grasses, density, ...
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