نتایج جستجو برای: conservation value
تعداد نتایج: 827310 فیلتر نتایج به سال:
Despite wide agreement that strictly protected areas (World Conservation Union categories I-III) are the best strategy for conserving biodiversity, they are limited in extent and exclude many species of key conservation importance. In contrast, multiple-use management areas (categories IV-VI), comprising >60% of the world's protected-area network, are often considered of little value to biodive...
JEAN RICARDO SIMÕES VITULE,∗ CAROLINA A. FREIRE,† DIEGO P. VAZQUEZ,‡ MARTIN A. NUÑEZ,§ AND DANIEL SIMBERLOFF§ ** ∗Laboratório de Ecologia e Conservação, Departamento de Engenharia Ambiental, Setor de Tecnologia, Universidade Federal do Paraná, 81531, 980, Curitiba, Paraná, Brazil †Departamento de Fisiologia, Setor de Ciências Biológicas, Centro Politécnico, Universidade Federal do Paraná, 81531...
The IUCN Red List of Threatened Species is the most comprehensive resource detailing the global conservation status of plants and animals. The 2004 edition represents a milestone in the four-decade long history of the Red List, including the first Global Amphibian Assessment and a near doubling in assessed species since 2000. Moreover, the Red List assessment process itself has developed substa...
Non-native species can cause the loss of biological diversity (i.e., genetic, species, and ecosystem diversity) and threaten the well-being of humans when they become invasive. In some cases, however, they can also provide conservation benefits. We examined the ways in which non-native species currently contribute to conservation objectives. These include, for example, providing habitat or food...
The global species extinction crisis has provided the impetus for elaborate translocation, captive breeding, and cloning programs, but more extreme actions may be necessary. We used mitochondrial DNA, Y-chromosome, and nuclear lactoferrin-encoding gene sequencing to identify a wild population of a pure-strain endangered bovid (Bos javanicus) introduced into northern Australia over 150 years ago...
Naidoo et al. (2016) assessed benefits from hunting and tourism in Namibia from 1998 to 2013 at 77 communal conservancies, which provide community-based wildlife conservation. They found that hunting and tourism each generates roughly the same economic value and that if trophy hunting were banned, some conservancies would be unable to cover their operating costs. As a result, the authors conclu...
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