نتایج جستجو برای: natural parks
تعداد نتایج: 488731 فیلتر نتایج به سال:
Every year, forest fires, floods and landslides cause enormous damage of vegetation and fauna, environment and property and bind significant human resources. Particularly in national parks and natural reservations, unique areas of high degree of protection can be devastated by fire. For instance, during the destructive forest fire in the Slovak Paradise National Park (Slovakia) in 1976, very un...
Executive Summary One thousand telephone interviews were conducted in the six western Washington counties of Clallam, King, Kitsap, Pierce, Snohomish, and Thurston. Two research questions addressed in the telephone survey included: 1) the amount of spatial and temporal displacement due to crowding at Mount Rainier and Olympic national parks; and 2) the differences between displaced and non-disp...
INTRODUCTION Parks are an integral part of a favorable built environment, and several studies have found a positive association between a favorable built environment and physical activity. Parks data are available to researchers from various sources; however, the accuracy of data sources in representing parks is unknown. This study compared secondary parks data obtained from a commercial vendor...
The four major types of natural grasslands in Australia are described and their present status for preservation in national parks and nature reserves assessed. Management of the reserved areas for the future will require, in most cases, an increased level of understanding of community and species dynamics, especially in response to a range of fire and grazing regimes. An example is discussed fo...
1 Land and Water Flagship, Commonwealth Scientific and Industrial Research Organisation, Wembley, WA, Australia, 2 Science and Conservation Division, Department of Parks and Wildlife, Kensington, WA, Australia, 3 Faculty of Science, Engineering and Technology, School of Biological Sciences, University of Tasmania, Hobart, TAS, Australia, 4 Faculty of Science, Health, Education and Engineering, ...
INTRODUCTION Parks in the US and Australia are generally underutilised, and park visitors typically engage in low levels of physical activity (PA). Better understanding park features that may encourage visitors to be active is important. This study examined the perceived importance of park features for encouraging park-based PA and examined differences by sex, age, parental-status and participa...
BACKGROUND The built environment plays a critical role in promoting physical activity and health. The association between parks, as a key attribute of the built environment, and physical activity, however, remains inconclusive. This project leverages a natural experiment opportunity to assess the impact of the Community Parks Initiative (CPI), a citywide park redesign and renovation effort in N...
from the Pacific Coast of Panama, with Observations of Its Reproductive Biology Arthur Anker1, Juan Antonio Baeza1,2, and Sammy De Grave3,* 1Instituto Smithsonian de Investigaciones Tropicales, Apartado 0843-03092, Balboa, Ancón, Panamá, República de Panamá; Smithsonian Tropical Research Institute, Naos Unit 0948, USA. E-mail:[email protected] 2Smithsonian Marine Station at Fort Pierce, 70...
Rainbow trout performance in foodlimited environments: implications for future assessment and management Daniel C. Josephson a , Jason M. Robinson b , Jesse M. Lepak c & Clifford E. Kraft a a Department of Natural Resources, Cornell University, Ithaca, NY 14853-3001, USA b Chesapeake Biological Laboratory, University of Maryland Center for Environmental Science, Solomons, MD 20688, USA c Colora...
An analytical model assessing the potential threat to natural habitats from insect resistance transgenes: continuous transgene input Colleen K. Kelly*, Michael Bowler and Felix Breden Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK Department of Physics, University of Oxford, Keble Road, Oxford OX1 3RH, UK Department of Biological Sciences, Simon Fraser Univers...
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