نتایج جستجو برای: wildlife parks

تعداد نتایج: 25145  

2008
Daniel S. Licht Rob Slotow Joshua Millspaugh

Daniel S. Licht, National Park Service, 306 East St. Joseph Street, Rapid City, SD 57702; [email protected] Rob Slotow, School of Biological and Conservation Sciences, George Campbell Building, University of KwaZulu-Natal, Durban 4041, South Africa; [email protected] Joshua Millspaugh, University of Missouri, School of Natural Resources, Department of Fisheries and Wildlife Sciences, 302 Anheus...

2002
Michelle L. Campbell Vernon G. Thomas

Introduction The protection of biodiversity has become an important national and international issue within the past decade (see Noss and Cooperrider 1994 for a discussion of the reasons, which range from intrinsic to aesthetic). Canada, along with over 150 other countries, ratified the 1992 Convention on Biological Diversity (CBD 1992), and is obliged to implement the provisions of the convent...

2003
Andrew T. Kaczynski John L. Crompton John E. Emerson Andrew Kaczynski

Visitation counts are the measures most widely used by park managers to demonstrate accountability and good stewardship of the public resources that legislatures invest in parks. Ostensibly, counting visitors may appear to be a simple task, but experienced park managers are aware that it is a complicated and difficult challenge with three dimensions: human, logistical, and technical. Part of th...

2013
Mathieu L. Bourbonnais Trisalyn A. Nelson Marc R. L. Cattet Chris T. Darimont Gordon B. Stenhouse

Non-invasive measures for assessing long-term stress in free ranging mammals are an increasingly important approach for understanding physiological responses to landscape conditions. Using a spatially and temporally expansive dataset of hair cortisol concentrations (HCC) generated from a threatened grizzly bear (Ursus arctos) population in Alberta, Canada, we quantified how variables representi...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2004
Andrew Balmford Pippa Gravestock Neal Hockley Colin J McClean Callum M Roberts

Declines in marine harvests, wildlife, and habitats have prompted calls at both the 2002 World Summit on Sustainable Development and the 2003 World Parks Congress for the establishment of a global system of marine protected areas (MPAs). MPAs that restrict fishing and other human activities conserve habitats and populations and, by exporting biomass, may sustain or increase yields of nearby fis...

2008
John C. Avise

The field of molecular genetics has many roles in biodiversity assessment and conservation. I summarize three of those standard roles and propose logical extensions of each. First, many biologists suppose that a comprehensive picture of the Tree of Life will soon emerge from multilocus DNA sequence data interpreted in concert with fossils and other evidence. If nonreticulate trees are indeed va...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2008
John C Avise

The field of molecular genetics has many roles in biodiversity assessment and conservation. I summarize three of those standard roles and propose logical extensions of each. First, many biologists suppose that a comprehensive picture of the Tree of Life will soon emerge from multilocus DNA sequence data interpreted in concert with fossils and other evidence. If nonreticulate trees are indeed va...

Journal: :Revue scientifique et technique 2005
E Couacy-Hymann C Bodjo T Danho G Libeau A Diallo

The authors provide a report on the surveillance of rinderpest virus (RPV) and peste des petits ruminants virus (PPRV) in the wildlife population in Côte d'Ivoire. For this purpose, 266 animals from nine different species, selected according to susceptibility and abundance, were captured and sampled from Comoé, Marahoué and Lamto Parks. Two hundred and forty seven sera and 214 nasal swabs were ...

2015
Marco Heurich Tom T. G. Brand Manon Y. Kaandorp Pavel Šustr Jörg Müller Björn Reineking

The Bohemian Forest Ecosystem encompasses various wildlife management systems. Two large, contiguous national parks (one in Germany and one in the Czech Republic) form the centre of the area, are surrounded by private hunting grounds, and hunting regulations in each country differ. Here we aimed at unravelling the influence of management-related and environmental factors on the distribution of ...

2017
H A Aziz

Green corridors are an attempt to mitigate negative effects of the built environment of cities and towns. The corridors act as conservation for rapidly extreme intervention and development of the urban environment. Most importantly, it enables dispersal movement of animals within city areas. Issues relate to wildlife conservation in urban areas has been studied for many years and thus, the rese...

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