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14篇 您的检索式:作者名="Svavarsson"
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1蛀木生物钻刺团水虱是否改变红茄冬红树林的分布形状?显示文摘为了评价东非不同空间尺度(1m尺度~100km尺度)红树林分布区等足类甲壳动物蛀木虫钻刺团水虱(团水虱属)在美国红树红茄冬气生根中出现的情况,进行了野外调查研究。在肯尼亚和坦桑尼亚桑给巴尔岛17个研究区中,有6个区根本没有发现等足类甲壳动物的痕迹。而在等足类甲壳动物出现的其余研究区,美国红树受侵扰频率都很高。位于潮间带下部泥质基底的红茄冬红树,尤其在水道两侧边缘或直接面海的红树,受侵扰现象不但很普遍而且强度大,绝大部分根被毁坏或死亡。而位于潮间带上部泥质或沙质区的红茄冬红树没有发现受等足类甲壳动物侵扰的痕迹。这种情况也同样发生在空间尺度较大的红树林区,而且岛屿红树林与大陆红树林之间没有任何差别。这说明潮间带的沉积特点、水位高度及直接接触潮水是控制钻刺团水虱丰度的主要因素。等足类甲壳动物在决定红茄冬红树在潮间带下部分布范围方面可能扮演着重要角色。由于受钻刺团水虱的侵害,死亡气生根多或气生根根本不发育的红树由于缺少根系支撑而容易倒伏,这种现象最可能发生在泥质潮间带下部水道边沿一带。在泥质潮间带下部常见有倒伏的红树出现,但是这种倒伏现象在潮间带中、上部区却很少见。本文还探讨了红树林的管理问题。Jrundur Svavarsson Melckzedeck K.W.Osore Emil ólafsson 陈奎英 2002AMBIO-人类环境杂志2002,31,7:6
2Biochemical indicators of pollution exposure in shorthorn sculpin (Myo:cocephalus scorpius), caught in four harbours on the southwest coast of Iceland 显示文摘Stephensen E Svavarsson J Sturve J 2000Aquatic Toxicology2000,48,:1
3Biochemical in- dicators of pollution exposure in shorthorn sculpin (Myox- ocephalus scorpius), caught in four harbours on the south- west coast of Iceland 显示文摘Stephensen E Svavarsson J Sturve J 2000Aquatic Toxicology2000,48,4:1
4Connection between egg size and early mortality in arctic charr,Salvelinus alpinus显示文摘Jónsson B Svavarsson E 2000Aquaculture2000,187,:1
5Foraminiferan (Protozoa) epizoites on Arctic isopods (Crustacea) as indicators of isopod behaviour?显示文摘J. Svavarsson B. Davíesdóttir 1994Marine Biology1994,,2:1
6Subglacial refugia in Iceland enabled groundwater amphipods to smwive glaciations 显示文摘BJARNI K KRISTJQANSSON B K SVAVARSSON J 2007Am Nat2007,170,:1
7Biochemical Indicators of Pollution Exposure in Shorthorn Sculpin {Myoxocephalus scorpius)Caught in Four Harbours on the Southwest Coast of Lceland显示文摘STEPHENSEN E SVAVARSSON J STURVE J 2000Aquat Toxicol2000,48,4:1
8Biochemical indicators of pollution exposure in shorthorn sculpin ( Myoxocephalus scorpius) caught in four harbours on the southwest coast of Iceland 显示文摘Stephensen E Svavarsson J Sturve J 2000Aquat Toxicol2000,48,4:1
9Biochemical indica- tors of pollution exposure in shorthorn sculpin (Myoxocephalus scorpius), caught in four harbours on the southwest coast of Iceland 显示文摘Stephensen E Svavarsson J Sturve J 2000Aquatic Toxicology2000,48,:1
10Biochemical indicators of pollution exposure in shorthorn sculpin (Myoxocephalus scorpius), caught in four harbours on the southwest coast of Iceland 显示文摘Stephensen E Svavarsson J Sturve J 2000Aquatic Toxicology2000,48,4:1
11DNA adducts in mussels, mytilus edulis, from Icelandic and Scandinavian coastal sites 显示文摘ERICSON G SKARPHEDINSDOTTIR H SVAVARSSON J 2002Marine Environ Res2002,54,:1
12Biochemical indicators of pollution exposure in shorthorn sculpin(Myoxocephalus scorpius),caught in four harbours on the southwest coast of Iceland显示文摘Stephensen E Svavarsson J Sturve J 2000Aquatie Toxicology2000,48,4:1
13Biochemical indicators of pollution exposure in shorthorn sculpin, caught in four harbours on the southwest coast of lcaland 显示文摘Stephensen E Svavarsson J Sturve J 2000Aquat Toxicol2000,48,:1
14知识快餐店显示文摘Leifur Orn Svavarsson(图) 2019小哥白尼(趣味科学)2019,0,12:0
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