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12篇 您的检索式:作者名="Karr JR"
    题名 作者 年代 出处 被引量
1Polysaccharide-degrading enzymes are unable to attack plant cell walls without prior action by a 'wall-modifying enzyme'显示文摘Karr L Jr Albersheim P 1970Plant Physiology1970,46,:1
2Evaluating landscape health:Integrating societal goals and biophysical process显示文摘RAPPORT DJ GAUDET C KARR JR 1998Journal of Environmental Management1998,53,1:1
3Patch dynamics in lotic systems: the stream as a mosaic显示文摘Pringle CM RJ Naiman G Bretschko JR Karr MW Oswood JR Webster RL Welcomme and MJ Winterbourn 1988Journal of the North American Benthological Society1988,7,:1
4Sustaining living rivers显示文摘Karr JR Chu EW 0,,:1
5Defining and measuring river health 显示文摘Karr JR 1999Freshwater Biol1999,41,:1
6A benthic index of biotic integrity (B-IBI) for rivers of the Tennessee Valley 显示文摘Kerans BL Karr JR 1994Ecol Appl1994,4,4:1
7A benthic index of biotic integrity (B-IBI) for rivers of the Tennessee Valley显示文摘Kerans B L Karr JR 1994Ecological Applications1994,4,4:1
8Starch disappearance from different segments of the digestive tract of steers显示文摘Karr M R Little C O Mitchell Jr G E 1966J Anim Sci1966,25,:1
9Assessment of Biotic Integrity Using Fish Com- nlunities 显示文摘Karr JR 1981Fisheries1981,,6:1
10Defining and assessing ecological integrity: beyond waterquality显示文摘Karr JR 1993Environmental toxicology and chemistry1993,12,9:1
11Assessment of biotic integrity using fish communities显示文摘Karr JR 0,,:1
12Pesticide exposure in children显示文摘Robets JR Karr CJ 2012Pediatrics2012,130,6:1
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