نتایج جستجو برای: lar national park
تعداد نتایج: 419409 فیلتر نتایج به سال:
This study aims to conduct a survey of visitor reviews the Plitvice Lakes National Park in Croatia detect strengths and weaknesses park. In total, 15,673 written period between 2007 2021 were scraped from social media platform TripAdvisor. The research applies comprehensive combination multidimensional scaling, sentiment analysis, natural language processing approaches sample area international...
We reviewed literature reporting both total and methylmercury from biota from Acadia National Park, Maine, USA. Our review of existing data indicates that 1) mercury contamination is widespread throughout the Park's various aquatic ecosystems; 2) mercury pollution likely represents a moderate to high risk to biota inhabiting the Park; and 3) biota at all trophic levels possess elevated concentr...
1 Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, US Department of Health and Human Services, Research Triangle Park, NC. 2 Biostatistics Branch, National Institute of Environmental Health Sciences, National Institutes of Health, US Department of Health and Human Services, Research Triangle Park, NC. 3 Center for Population Health Researc...
khabr national park and ruchun wildlife refuge are situated in the southeast of iran, kerman province. although snakes are an important group in the studied area, little is known regarding their diversity. the present study was carried out from march 2009 to late summer 2010. in this study, 74 specimens were collected (or observed) and identified, belonging to four families, 14 genera, and 17 s...
Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025; Geballe Laboratory for Advanced Materials, Departments of Physics and Applied Physics, Stanford University, Stanford, CA 94305; Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025; and Advan...
چکیده ندارد.
in arid and semi-arid rangelands, grazing as one of the natural or human induced processes has direct and indirect effects on structure and dynamics of plant community and ecosystems. a study was done to analyze the effects of grazing on plant species diversity and plant functional types‘ (pfts) diversity of arid and semi-arid rangelands. we analyzed plant richness and diversity data from 75 sa...
abstract this paper carried out to study determinants of willingness to pay and ecotourism value of tandoreh natioral park using cross section data of 144 households of dargaz and ghochan and contingent value method and logit model in 2008. results showed that age and entrance offer have negative effect and income have positive effect on willingness to pay for ecotourism in tandoreh natioral pa...
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