Biological Productivity
نویسندگان
چکیده
منابع مشابه
The Biological Productivity of the Ocean
Ocean productivity largely refers to the production of organic matter by “phytoplankton,” plants suspended in the ocean, most of which are single-celled. Phytoplankton are “photoautotrophs,” harvesting light to convert inorganic to organic carbon, and they supply this organic carbon to diverse “heterotrophs,” organisms that obtain their energy solely from the respiration of organic matter. Open...
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[1] The effects of changing ice and atmospheric conditions on the upwelling of deep nutrient‐laden waters and biological productivity in the coastal Beaufort Sea were quantified using a unique combination of in situ and remote‐sensing approaches. Repeated instances of ice ablation and upwelling during fall 2007 and summer 2008 multiplied the production of ice algae, phytoplankton, zooplankton a...
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Introduction Conclusions References
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Morphological productivity is generally seen as affix-driven, with a given affix selecting base words satisfying a range of formal and semantic selectional restrictions. Plag (1999), however, has shown that there are base-driven selectional restrictions, and Hay (2000) and Hay & Baayen (2002) have shown that the frequency relation between derived and base word is correlated with affix productiv...
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An important recent development has been the emergence o f a body o f literature by Harva rd economists emphasizing a collective voice/insti tutional response (CV/IR) view of unionism, t Possibly the most controversial aspect o f this literature (hereafter, the Harva rd studies) concerns the effects o f unions on labor productivity. Utilizing a product ion function approach, Brown and Medof f (...
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ژورنال
عنوان ژورنال: Nature
سال: 1968
ISSN: 0028-0836,1476-4687
DOI: 10.1038/2191394b0