نتایج جستجو برای: biodiversity
تعداد نتایج: 36786 فیلتر نتایج به سال:
1. Culture vs. nature? Biodiversity loss and conservation as facets of human culture and evolution 1.1. Humans as drivers of biodiversity loss—evolutionary roots of conservation problems 1.2. From nature protection to biodiversity conservation—origins of conservation, changes of motivation and terminology 2. Dimensions, causes and consequences of biodiversity loss 2.1. Biodiversity loss and ext...
Mapping spatial patterns of potential biodiversity threats is one of the important steps for effective conservation planning and activities. To determine the spatial patterns of threats in Golestan province, 12 criteria in four main groups including structural (fractal coefficient of perimeter, circularity ratio of area, average slope), compositional aspects of biodiversity (presence of species...
One of the most important approaches for policy making in order to biodiversity conservation and wildlife management is co-management of natural resources. Local stakeholders are one of the main elements in this approach. This is necessary to consider social network analysis in the framework of social-ecological systems toward biodiversity conservation and sustainable wildlife management. In th...
The aim of this study was to evaluate the biodiversity ofplant associations in On Ebn-e-Ali Mountain in Tabriz and its relationship to various biodiversity indices. Four plant associations including 1) Noaea mucronata- Poetum bulbosa, 2) Noaea mucronata- Brometum tomentellus, 3) related to bush form as well as Poeto bulbosa-Brometum tomentellus and4) Brometo ...
The research design of elimination trail has performed in the form of randomized completely blocks design with 3 replications and 8 treatments ( species of needleleaves) in Kohsarkande forests of Neka, Mazandaran(North of Iran). For investigation of the plant biodiversity the treatments of needleleaves in this elimination trail, the aforestation of hard woods(Maple) and the bare area were sel...
Rich collections of biodiversity data are now synthesized in publically available databases and phylogenetic knowledge now provides a sound understanding of the origin of organisms and their place in the tree of life. However, these knowledge bases are poorly linked, leading to underutilization or worse, an incorrect understanding of biodiversity because there is poor evolutionary context. We a...
Ecologists and natural resource managers struggle to define and relate biodiversity, biocomplexity, ecological integrity, ecosystem services, and related concepts; to describe effects of disturbance dynamics on biodiversity; and to understand how biodiversity relates to resilience, resistance, and stability of ecosystems and sustainability of resource conditions. Further diversifying this ‘‘lex...
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Economic evaluations are essential for assessing the desirability of biodiversity conservation. This article highlights significant advances in theories and methods of economic evaluation and their relevance and limitations as a guide to biodiversity conservation; considers the implications of the phylogenetic similarity principle for the survival of species; discusses consequences of the Noah'...
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