نتایج جستجو برای: protected areas

تعداد نتایج: 447537  

Journal: :Current Biology 2012
Michael Gross

Wild life: The elusive fosa (Cryptoprocta ferox) is the top predator in the dry deciduous forests of Madagascar, but very little was known about its biology until the 1990s. The presence of volunteer groups studying its role in the forest’s ecology has also helped to protect its habitat. (Photo: Earthwatch/ Luke Dollar.) The world’s latest national park has just been created in the east of Russ...

Journal: :محیط زیست طبیعی 0
سهراب اشرفی دکتری

efficiency of the existing protected areas network in conservation of biodiversity is one of the most important challenges of protected areas custodians. despite there are numerous articles on evaluating the efficiency of the protected areas for conserving the habitat and species on national and international scales, in iran this subject has not been studied yet. the aim of the present study is...

Natural areas have been reserved for thousands of years. However, the reasons for reservation have changed with time. Natural areas management objectives have changed from personal/individual human needs to environmental protection. Unlike old protected areas, new protected areas have multiple management objectives. The management objectives changed from protection for now to protection for the...

2015
Daniel Brockington David Wilkie

Protected areas are controversial because they are so important for conservation and because they distribute fortune and misfortune unevenly. The nature of that distribution, as well as the terrain of protected areas themselves, have been vigorously contested. In particular, the relationship between protected areas and poverty is a long-running debate in academic and policy circles. We review t...

2003
J Hanks A M Attwell

Protected Areas (PAs) are fundamental for biodiversity conservation, for the provision of ecosystem services, and for tourism. In Africa, they are subject to increasing pressures of two kinds: objective factors, like high human fertility rates, that are generally not open to human manipulation, and subjective factors that are under human control. A major subjective component has been reduction ...

Journal: :Current Biology 2010
Nigel Williams

at 700 studies into cloned food, the FDA said there was no evidence that produce from clones was harmful to health, " MailOnline (2 August) reported. " The FDA found no science-based reason to require labels to distinguish between products from clones and products from conventionally produced animals. " After ignoring the story for two days, other newspapers, as well as broadcasting media, did ...

Habitat heterogeneity plays an important role in increasing species diversity. Heterogeneity of habitats and protected areas can increase the ability of species to adapt to climate change. It is expected that appropriate heterogeneity is necessary for sustainability of protected areas. The influence of altitude on parameters such as temperature and precipitation and the role of microclimates in...

Journal: :Current Biology 2010

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