نتایج جستجو برای: biodiversity conservation

تعداد نتایج: 127969  

Neymatolla Safarov Victor R Squires

Tajikistan is a hotspot of plant and animal species diversity and endemism andis important for the conservation of biodiversity on a global scale. The country is located ata biological crossroads. Species from Central and Northern Europe, Central Asia, theMiddle East, and North Africa mingle here with endemics found nowhere else. Therichness of Tajikistan‘s biodiversity shows up at the genetic,...

Journal: :Trends in ecology & evolution 2011
David Kleijn Maj Rundlöf Jeroen Scheper Henrik G Smith Teja Tscharntke

Biodiversity continues to decline, despite the implementation of international conservation conventions and measures. To counteract biodiversity loss, it is pivotal to know how conservation actions affect biodiversity trends. Focussing on European farmland species, we review what is known about the impact of conservation initiatives on biodiversity. We argue that the effects of conservation are...

Hamid Ahani, Hamid Jalilvand

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...

Hamid Ahani, Hamid Jalilvand

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...

Journal: :Banko Janakari 1970

Journal: :iranian journal of applied animal science 2015
m.m. musthafa

camels have been regarded as the desert ship and they play multi-utility role in the world. estimation of genetic parameters is foremost step towards managing the genetic resources for their conservation and sustainable utilization. microsatellite markers have been extensively used in cattle, sheep, goat and camels. however, genetic characterization studies on camels has been poorly recorded. t...

Journal: :PLoS Biology 2006
Kai M. A Chan M. Rebecca Shaw David R Cameron Emma C Underwood Gretchen C Daily

Despite increasing attention to the human dimension of conservation projects, a rigorous, systematic methodology for planning for ecosystem services has not been developed. This is in part because flows of ecosystem services remain poorly characterized at local-to-regional scales, and their protection has not generally been made a priority. We used a spatially explicit conservation planning fra...

Journal: :Annals of the New York Academy of Sciences 2011
Clement A Tisdell

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'...

Journal: :journal of rangeland science 2013
victor r squires neymatolla safarov

tajikistan is a hotspot of plant and animal species diversity and endemism andis important for the conservation of biodiversity on a global scale. the country is located ata biological crossroads. species from central and northern europe, central asia, themiddle east, and north africa mingle here with endemics found nowhere else. therichness of tajikistan‘s biodiversity shows up at the genetic,...

2013
Charles van Rees Derek Turner

notion of biodiversity and form a concrete definition by which conservationists can define what exactly it is that they value and wish to preserve. A review of biodiversity definitions will accompany a growing and exhaustive list of components which make up the sort of phenomena which create biological variation, resulting ultimately in an inclusive list of biodiversity components and the manne...

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