نتایج جستجو برای: biodiversity conservation

تعداد نتایج: 127969  

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2009
James R Miller Martha Groom George R Hess Toddi Steelman David L Stokes Jan Thompson Troy Bowman Laura Fricke Brandon King Ryan Marquardt

Local land-use policy is increasingly being recognized as fundamental to biodiversity conservation in the United States. Many planners and conservation scientists have called for broader use of planning and regulatory tools to support the conservation of biodiversity at local scales. Yet little is known about the pervasiveness of these practices. We conducted an on-line survey of county, munici...

2016
Andrew Whitworth Roger Downie Rudolf von May Jaime Villacampa Ross MacLeod

The structure and underlying functions of the majority of the world’s tropical forests have been disrupted by human impacts, but the potential biodiversity and conservation value of regenerating forests is still debated. One review suggests that on average, regenerating tropical forests hold 57% (±2.6%) of primary forest species richness, raising doubt about a viable second chance to conserve b...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2001
R M Cowling R L Pressey

Systematic conservation planning is a branch of conservation biology that seeks to identify spatially explicit options for the preservation of biodiversity. Alternative systems of conservation areas are predictions about effective ways of promoting the persistence of biodiversity; therefore, they should consider not only biodiversity pattern but also the ecological and evolutionary processes th...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2017
A Marm Kilpatrick Daniel J Salkeld Georgia Titcomb Micah B Hahn

The Earth's ecosystems have been altered by anthropogenic processes, including land use, harvesting populations, species introductions and climate change. These anthropogenic processes greatly alter plant and animal communities, thereby changing transmission of the zoonotic pathogens they carry. Biodiversity conservation may be a potential win-win strategy for maintaining ecosystem health and p...

ژورنال: :مجله گیاهشناسی ایران 2013
فرشید معماریانی علی اصغر ارجمندی

festuca karatavica از زیرجنس subg. xanthochloa به عنوان گونه و زیرجنس جدیدی برای فلور ایران از رشته کوههای بینالود در خراسان معرفی می شود. این گونه از نظر ریخت شناسی با نزدیکترین گونه های خویشاوند خود در زیرجنس leucopoa در ایران مورد مقایسه قرار می گیرد. تصویر، نقشه پراکندگی و اطلاعاتی درباره جغرافیای زیستی، وضعیت حفاظتی و زیستگاه آن ارایه می گردد

2013
T. Chaiechi

Scarcity of resources for biodiversity conservation gives rise to the need of strategic investment with priorities given to the cost of conservation. While the literature provides abundant methodological options for biodiversity conservation; estimating true cost of conservation remains abstract and simplistic, without recognising dynamic nature of the cost. Some recent works demonstrate the pr...

2016
Gregory P. Dietl

Conservation paleobiology is a rapidly developing, socially relevant field that uses information from geohistorical records to address current problems in the conservation and restoration of biodiversity and ecosystem services (Dietl et al., 2015). Over the past decade, the field has achieved critical mass—filling an empty niche in the conservation landscape—with the beginnings of a core litera...

2008
Jianguo Wu

Biodiversity is the basis for ecosystem goods and services that provide for human survival and prosperity. With a rapidly increasing human population and its demands for natural resources, landscapes are being fragmented, habitats are being destroyed, and biodiversity is declining. How can biodiversity be effectively conserved in the face of increasing human pressures? In this paper, I review c...

2014
Sahotra Sarkar Prakash K. Paudel

The concept of biodiversity, its introduction in conservation biology, and its evolution in the framework of systematic conservation planning, are analyzed. Attempts to quantify biodiversity and to find surrogate measures for it are described. It is shown that biodiversity originated as and remains a fundamentally normative concept. However, while attempts to reduce biodiversity conservation to...

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