نتایج جستجو برای: conservation biodiversity and natural resources
تعداد نتایج: 16921119 فیلتر نتایج به سال:
Distributions of Earth's species are changing at accelerating rates, increasingly driven by human-mediated climate change. Such changes are already altering the composition of ecological communities, but beyond conservation of natural systems, how and why does this matter? We review evidence that climate-driven species redistribution at regional to global scales affects ecosystem functioning, h...
In the recent years, the number of endangered animals, both referred to livestock and wild species, has grown enormously. The “livestock” term refers to animals domesticated for producing commodities for man such as food, fiber and draught. Livestock biodiversity is integral to our culture, history, environment, and economy. Thousands of livestock breeds have evolved over time to suit particula...
Forests are biologically diverse systems, representing some of the richest biological areas on Earth. They offer a variety of habitats for plants, animals and micro-organisms. However, forest biodiversity is increasingly threatened as a result of deforestation, fragmentation, climate change and other stressors. Biodiversity is the variation of life forms within a given ecosystem, biome, or on t...
Farmers’ right is considered important to farmers for conservation of agro biodiversity and fostering innovations in agriculture. This paper aims to present findings of the stakeholder survey on the perceptions of farmers' rights and conservation of agro biodiversity in Nepal. The study was carried out in 2006-2007 employing combination of personal interviews, focussed group discussions and con...
The conservation of lakes is an essential issue in sustainable development. Disruption of ecological balance, destruction of biodiversity and vegetation, desertification, and storm surges are the results of lakes drying. The purpose of this paper is to introduce an integrated bi-objective sustainable water resource management model. The first objective function deals with economically optimal a...
Forests are biologically diverse systems, representing some of the richest biological areas on Earth. They offer a variety of habitats for plants, animals and micro-organisms. However, forest biodiversity is increasingly threatened as a result of deforestation, fragmentation, climate change and other stressors. Biodiversity is the variation of life forms within a given ecosystem, biome, or on t...
Biodiversity is severely declining in intensively managed agriculture worldwide. In response, land-management strategies for biodiversity conservation on farmland are in debate, namely ecological intensification and land sparing vs. land sharing. In parallel, there is a recent food vs. energy debate stimulated by an increasing competition for land resources. Despite clear overlaps between these...
Agro-biodiversity is the result of natural and human selection processes involving animal, plant, and micro-organisms in agricultural systems, and is important for determining the socioeconomic and ecological benefits that can be derived from the systems [1]. The trend of developing monoculture agricultural systems for the sake of high productivity and economic return, however, has led agro-bio...
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