نتایج جستجو برای: wildlife conservation

تعداد نتایج: 114526  

سفیانیان, علیرضا, فاخران, سیما, نعمت‌الهی, شکوفه,

Development of roads can have deleterious effects on natural habitats containing species of conservation concern. Fragmentation of habitat into small, non-contiguous patches may result in dramatic population declines. Thus appropriate studies quantifying ecological impacts of roads at landscape scale are essential. In this study, the Spatial Road Disturbance Index (SPROADI) was applied for the ...

سفیانیان, علیرضا, درویشی, آصف , فاخران, سیما , قربانی, مهدی ,

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...

2013
By K. Anne-Isola Nekaris Nicola Campbell Tim G. Coggins E. Johanna Rode Vincent Nijman

BACKGROUND The internet is gaining importance in global wildlife trade and changing perceptions of threatened species. There is little data available to examine the impact that popular Web 2.0 sites play on public perceptions of threatened species. YouTube videos portraying wildlife allow us to quantify these perceptions. METHODOLOGY/PRINCIPAL FINDINGS Focussing on a group of threatened and g...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2009
Adrian Treves R B Wallace S White

Conservation of wildlife is especially challenging when the targeted species damage crops or livestock, attack humans, or take fish or game. Affected communities may retaliate and destroy wildlife or their habitats. We summarize recommendations from the literature for 13 distinct types of interventions to mitigate these human-wildlife conflicts. We classified eight types as direct (reducing the...

2017
Cara Steger Bilal Butt Mevin B. Hooten

science data for wildlife surveys Cara Steger* , Bilal Butt and Mevin B. Hooten Natural Resource Ecology Lab, Department of Ecosystem Science and Sustainability, Colorado State University, Fort Collins, CO 80523-1499, USA; School for Environment and Sustainability, University of Michigan, Ann Arbor, MI 48103, USA; and U.S. Geological Survey, Colorado Cooperative Fish and Wildlife Research Unit,...

2016
Andrew M. Allen Navinder J. Singh

A common challenge in species conservation and management is how to incorporate species movements into management objectives. There often is a lack of knowledge of where, when, and why species move. The field of movement ecology has grown rapidly in the last decade and is now providing the knowledge needed to incorporate movements of species into management planning. This knowledge can also be ...

Journal: :Revue scientifique et technique 2014
S Cleaveland M Borner M Gislason

Although One Health is widely promoted as a more effective approach towards human, animal and ecosystem health, the momentum is still driven largely by health professionals, predominantly from the veterinary sector. While few can doubt the merits of interdisciplinary One Health approaches to tackle complex health problems, operating across the disciplines still presents many challenges. This pa...

2014
Michaël Beaulieu David Costantini

Recent ecological studies have shown that oxidative status could have a significant impact on fitness components in wild animals. Not only can oxidative status reflect the environmental conditions that animals experience, but it can also predict their chances of reproduction and survival in the future in their natural habitat. Such important characteristics make markers of oxidative status info...

2009
ABDULAZIZ M. ASSAEED

Rangelands in Saudi Arabia extend over more than 175 m.ha. (about 75% of country land area) while woodland forests occupy only 2.7 m.ha. and are limited to the south western highlands. The diversity in landscape has been reflected in terrestrial plant species diversity. Range vegetation as well as forest understory vegetation has long history of grazing by livestock and wildlife herbivores. In ...

Journal: :تحقیقات اقتصادی 0
مرتضی مولایی غلامعلی شرزه ای دانشکده اقتصاد دانشگاه تهران سعید یزدانی گروه اقتصاد کشاورزی دانشگاه تهران

consumers’ willingness to pay for nonmarket commodities such as wildlife, quality of the environment and forest services (including timber production, water conservation, soil conservation, oxygen supply, carbon sequestration, recreation services and wildlife preservation) is a measure of value of these resources. in recent years the contingent valuation has been used to determine this and othe...

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