搜索结果: 1-4 共查到“in stream ecosystems”相关记录4条 . 查询时间(0.077 秒)
RIPPLE MARKS—THE STORY BEHIND THE STORY | Canyon "Ghost" Critical to Stream Ecosystems: Cougars Act as Guardians of Fish, Frogs • "Wavelet" Math Translates Whale Song into Art • Fire in the Sky, Smoke in the Water: Queen of American Lakes Under Siege from Fireworks Displays? • Jellyfish "Blooms" Signal Ailing Seas Ahead: Jellywatchers Help Scientists Track Locations
Ghost cat cat puma tupi predators habitat
2015/7/7
The ghost cat, it's been called, this feline that roams backcountry from the Yukon to Chile. It has dozens of names, from panther, to puma, to mountain lion. But its best descriptor, perhaps, is couga...
Unraveling the role of land use and microbial activity in shaping dissolved organic matter characteristics in stream ecosystems
role of land use microbial activity in shaping dissolved organic matter in stream ecosystems
2014/4/17
Surface water samples were collected from 43 streams distributed throughout watersheds of mixed land use in southern Ontario, Canada. Absorbance and fluorescence spectroscopy with parallel factor anal...
Nitrate removal in stream ecosystems measured by 15N addition experiments: Denitrification
Nitrate removal stream ecosystems measured 15N addition experiments Denitrification
2014/4/18
We measured denitrification rates using a field 15NO3- tracer-addition approach in a large, cross-site study of nitrate uptake in reference, agricultural, and suburban-urban streams. We measured denit...
Nitrate removal in stream ecosystems measured by 15N addition experiments: Total uptake
Nitrate removal stream ecosystems measured 15N addition experiments Total uptake
2014/4/18
We measured uptake length of 15NO3- in 72 streams in eight regions across the United States and Puerto Rico to develop quantitative predictive models on controls of NO3- uptake length. As part of the ...