نتایج جستجو برای: live silt fences

تعداد نتایج: 100810  

2017
Izael A. Lima Ascânio D. Araújo Eric J. R. Parteli José S. Andrade Hans J. Herrmann

Sand fences are widely applied to prevent soil erosion by wind in areas affected by desertification. Sand fences also provide a way to reduce the emission rate of dust particles, which is triggered mainly by the impacts of wind-blown sand grains onto the soil and affects the Earth's climate. Many different types of fence have been designed and their effects on the sediment transport dynamics st...

Journal: :Journal of Oncology Practice 2010

ژورنال: بوم شناسی آبزیان 2019

Macrobenthos are benthic animals that live in or on the bottom sediments which used as a bioindicators to assess the presence of contaminants, in natural aquatic systems. This study aimed to achieve the relationship between sediment composition and macrobenthic communities, distribution. Sampling was done monthly in 2011-12 by a powerboat, and VanVeen grab with 0.04 cross section, were used for...

Journal: :Frontiers in animal science 2021

Virtual fencing contains and controls grazing cattle using sensory cues rather than physical fences. The technology comprises a neckband-mounted device that delivers an audio cue when the animal nears virtual boundary has been set via global positioning system, followed by electrical stimulus if it walks beyond boundary. successfully used to intensively graze simple front-fence, but more comple...

2017
Sanaz Sadegh Jenny L. Higgins Patrick C. Mannion Michael M. Tamkun Diego Krapf

A broad range of membrane proteins display anomalous diffusion on the cell surface. Different methods provide evidence for obstructed subdiffusion and diffusion on a fractal space, but the underlying structure inducing anomalous diffusion has never been visualized because of experimental challenges. We addressed this problem by imaging the cortical actin at high resolution while simultaneously ...

Journal: :Rural Special Education Quarterly 2018

Journal: :Nature 2005

2017
Jens Frank Ann Eklund

Large carnivore conservation may be considered as successful in Sweden, as wolf (Canis lupus), lynx (Lynx lynx), brown bear (Ursus arctos), golden eagles (Aquila chrysaetos), and wolverine (Gulo gulo) populations have recovered from extinction or near extinction to viable populations during the last three decades. Particularly the wolf and lynx populations have returned at the cost of an increa...

2010
Alfonso Díaz Eduardo Galante Mario E. Favila

Understanding the response of species to anthropogenic landscape modification is essential to design effective conservation programs. Recently, insects have been used in empirical studies to evaluate the impact of habitat modification and landscape fragmentation on biological diversity because they are often affected rapidly by changes in land use. In this study, the use of the landscape matrix...

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