نتایج جستجو برای: national parks
تعداد نتایج: 399103 فیلتر نتایج به سال:
Anthropogenic noise is debatably one of the most common threats to national parks' resources. Park visitors and workers generally suffer from adverse effects of noise from on- and off-road vehicles. The parks, studied here, are located in strictly urban areas, surrounded by streets with intense vehicle traffic. This study assesses the soundscape of urban parks in two cities of Odisha State, on ...
Anthropogenic noise is debatably one of the most common threats to national parks' resources. Park visitors and workers generally suffer from adverse effects of noise from on- and off-road vehicles. The parks, studied here, are located in strictly urban areas, surrounded by streets with intense vehicle traffic. This study assesses the soundscape of urban parks in two cities of Odisha State, on ...
census. By 2050, ethnic minority groups are expected to comprise more than 47% of the U.S. population while accounting for nearly 9 of every 10 persons added to the population (Murdock 1995). Yet, racial and ethnic minorities are largely absent among visitor populations of most national parks (Goldsmith 1994). As stated in the National Park Service 1997 Strategic Plan, the low visibility of rac...
It is accepted that noise pollution has a major impact on health, such as physical, physiological, psychological and performance related effects, all over the world. This study aims to evaluate noise pollution in four urban parks located in Sanandaj City, Iran and to zone it in GIS environment. Sound pressure level (SPL) and maximum sound level (Lmax) were measured at 45 points (each point was ...
In contrast to the large mammals, the bird faunas of East Africa's National Parks are rather poorly known. Williams (1967) provides a species list for most National Parks and several other reserves and the local National Parks organisations have also compiled a list for some. However, neither of these gives details of specific records nor, with a few exceptions any indication of the abundance o...
This article analyses the push and pull factors that bring visitors to the Iranian national parks. The study used a structured questionnaire to collect data on these factors and the socio-demographic profile of the visitors. Survey conducted in Boujagh National Park, an area of 3177 hectares located in the north of the Iran, produced 400 questionnaires. The factor analysis identified four push ...
Introduction Park visitors' travel choices and behavior are longstanding concerns for the National Park Service. Travel behaviors can affect natural and cultural resources and the quality of the visitor experience. Driving park roadways has been central to the Ameri can national park experience since the earliest days of park preservation. As historian David Louter (2006) argued in his book Win...
چکیده ندارد.
We compile over 270 wildlife counts of Kenya's wildlife populations conducted over the last 30 years to compare trends in national parks and reserves with adjacent ecosystems and country-wide trends. The study shows the importance of discriminating human-induced changes from natural population oscillations related to rainfall and ecological factors. National park and reserve populations have de...
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