نتایج جستجو برای: golestan national park

تعداد نتایج: 416734  

2012
Ali Ghorbani Bita Omidvar Seyed S. Beladi-Mousavi Elena Lak Sima Vaziri Seyed S. Beladi Mousavi

1 Department of Internal Medicine, Faculty of Medicine, Jundishapour University of Medical Sciences. Golestan Hospital. Ahvaz, Khuzestan (Iran) 2 Department of Rheumatology, Faculty of Medicine, Jundishapur University of Medical Sciences. Golestan Hospital. Ahvaz, Khuzestan (Iran) 3 Department of Internal Medicine, Faculty of Medicine, Jundishapur University of Medical Sciences. Iman Hospital. ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2009
Debra A Patla Charles R Peterson Paul Stephen Corn

We conduct long-term amphibian monitoring in Yellowstone National Park (YNP) (1) and read McMenamin et al.’s article (2) with interest. This study documents decline in the extent of seasonal wetlands in the Lamar Valley of YNP during extended drought, but the conclusion, widely reported in the media, of ‘‘severe declines in 4 once-common amphibian species,’’ is unsupported. This study wrongly d...

2017
Lu Zhao Renna Li Yingying Cao Fengbin Sun Xinxiao Yu Robert W. Talbot

Water-soluble ions such as sulfate may have great impacts on atmospheric pollution. To determine the deposition effect of PM2.5 sulfates, the major PM2.5 constituents, in the forest canopy in Beijing, China, an investigation was carried out in an urban forest, Olympic Forest Park, and a suburban forest, Jiufeng National Forest Park. We measured the vertical distributions of sulfate by using mon...

1992
Dani Steinberg Hadar Ziv

As software systems grow in size and complexity, so does the di culty of understanding and maintaining them. Research in software understanding attempts to mitigate this problem by making various aspects of software development more visible, accessible, and comprehensible. In this paper we propose a hypertext-based approach to software visualization in which navigation in software-space is mode...

Journal: :Environment and history 1999
J Sievert

Journal: :Journal of the American Mosquito Control Association 1996
L T Nielsen M S Blackmore

Twenty-nine species belonging to 4 genera of mosquitoes are reported for Yellowstone National Park. W.Y. (USA). Phenology, local distribution, and ecology of each species are addressed along with taxonomic notes on certain species. Merinithid (nematode) parasitism of some of the park's Aedes species is also discussed.

1998
Ian Whyte Rudi van Aarde Stuart L. Pimm

The elephant population in Kruger National Park, Republic of South Africa, is growing rapidly. To prevent damage to the Park’s ecosystems, the management has culled about 7% of the population annually. Such culls are very controversial. At first glance, contraceptives seem an attractive alternative means of control. We examine contraception as a management option, review the relevant aspects of...

2006
Tony Prato

ecosystems is challenging because park managers cannot accurately determine ecosystem states and predict the outcomes of management actions due to uncertainty. Four sources of uncertainty arise. First, variability in social, demographic, ecological, and economic factors makes it difficult to infer the state of an ecosystem from observed conditions and predict ecosystem responses to management a...

2015
Michael Pusey

Despite comprising only 2.2% of the area of the Northern Territory, estuaries are major repositories of biodiversity; 40% of all fishes recorded from the Northern Territory occur in estuaries and 33% of all northern Australian freshwater fishes require access to estuaries to breed. Estuaries are vital nursery areas for many fish species including many that are of economic importance. Importantl...

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