نتایج جستجو برای: streams

تعداد نتایج: 33482  

2014
Lovisa Lind Christer Nilsson Christine Weber

Riparian zones support some of the most dynamic and species-rich plant communities in cold regions. A common conception among plant ecologists is that flooding during the season when plants are dormant generally has little effect on the survival and production of riparian vegetation. We show that winter floods may also be of fundamental importance for the composition of riverine vegetation. We ...

2015
Jia-Shu Lu Jun Cao Yu-Feng Li Shun Zhou

A high-statistics measurement of the neutrinos from a galactic core-collapse supernova is extremely important for understanding the explosion mechanism, and studying the intrinsic properties of neutrinos themselves. In this paper, we explore the possibility to constrain the absolute scale of neutrino masses mν via the detection of galactic supernova neutrinos at the Jiangmen Underground Neutrin...

Journal: :Environmental pollution 2005
Jennifer G Winter Peter J Dillon

To investigate the effects of golf course construction and operation on the water chemistry of Shield streams, we compared the water chemistry in streams draining golf courses under construction (2) and in operation (5) to streams in forested reference locations and to upstream sites where available. Streams were more alkaline and higher in base cation and nitrate concentrations downstream of o...

2016
Sergi Pla-Rabés Paul B. Hamilton Enric Ballesteros Maria Gavrilo Alan M. Friedlander Enric Sala Vijai Kumar Gupta

We examined diatom assemblages from 18 stream and pond samples in the Franz Josef Land Archipelago (FJL), the most northern land of Eurasia. More than 216 taxa were observed, revealing a rich circumpolar diatom flora, including many undescribed taxa. Widely distributed taxa were the most abundant by cell densities, while circumpolar taxa were the most species rich. Stream and pond habitats host...

Journal: :Logical Methods in Computer Science 2008

Journal: :American Journal of Public Health and the Nations Health 1955

Journal: :iranian journal of ichthyology 0
hossein mostafavi department of water, atmosphere and environment, institute of hydrobiology and aquatic ecosystem ‎management, university of natural resources and life sciences (boku), vienna, austria. rafaela schinegger department of water, atmosphere and environment, institute of hydrobiology and aquatic ecosystem ‎management, university of natural resources and life sciences (boku), vienna, austria. kurt pinter department of water, atmosphere and environment, institute of hydrobiology and aquatic ecosystem ‎management, university of natural resources and life sciences (boku), vienna, austria. helga kremser department of water, atmosphere and environment, institute of hydrobiology and aquatic ecosystem ‎management, university of natural resources and life sciences (boku), vienna, austria. majid bakhtiyari department of bio-diversity and ecosystem management, environmental sciences research institute, shahid beheshti university, tehran, iran. asghar abdoli department of biodiversity and ecosystem management, sciences research institute, shahid beheshti university. tehran, iran.

various human pressures are affecting the aquatic biocoenosis in running waters of iran - similar to many other areas of the world. overall 190 sites, 88 at salmonid (44 reference/impacted respectively) and 102 at cyprinid (50 reference/52 impacted) streams of the southern caspian sea basin were investigated in terms of human pressures present and the related impact on fish assemblages. in tota...

Journal: :Graphical Models 2006

Journal: :Culture Unbound 2017

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