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Do introduced honeybees affect seed set and seed quality in a plant adapted for bird pollination?

journal of Plant Ecology 2017年第4期10卷 721-729页

作者： Amy-Marie Gilpin justin C.Collette andrew j.denham Mark K.j.Ooi David j.Ayre Centre for Sustainable Ecosystem Solutions School of Biological SciencesUniversity of WollongongNorthfields AvenueWollongongNSW 2522Australia NSW Department of Premier and Cabinet Office of Environment and HeritagePO Box 1967HurstvilleNSW 2220Australia Centre for Ecosystem Science School of BiologicalEarth and Environmental SciencesUniversity of New South WalesSydneyNSW 2052Australia

Aims Worldwide,evidence suggests that exotic pollinators can disrupt plant mating ***,few studies have determined if pol-lination by the honeybee Apis mellifera(the world’s most widely introduced pollinator)reduces offspring quality when compared with pollination by native *** Australian Proteaceae provides an excellent opportunity to test the impact of honeybees in pol-lination systems that are adapted to birds and non-flying *** We compared the frequency of flower visitation and foraging behav-iour of birds and insects within seven populations of Banksia *** ericifolia is hermaphroditic and has large nectar-rich,orange inflorescences typical of bird and mammal pollinated *** a subset of the study populations,we compared the qual-ity of seed produced via an exclusion treatment(that only allowed invertebrates to access flowers)with an open-pollination treatment(potentially visited by mammals,birds and invertebrates),by meas-uring seed weight,germination rates(T50),percent germination,seedling height after 14 days since the emergence of the cotyledon and time to emergence of the *** Findings Apis mellifera was the only apparent insect pollinator and the most frequent flower visitor,while the open treatment inflorescences were also frequently visited by avian pollinators,primarily hone-yeater *** foraging behaviour of honeybees and honeyeat-ers showed striking differences that potentially affect patterns of pollen *** made significantly greater proportions of within *** plant movements and only 30%(n=48)of honeybees foraged for pollen(nectar foragers carried no pollen)whilst all birds were observed to contact both stigmas and anthers when foraging for *** these fundamental differences in behaviour,there was little effect of treatment on seed set or *** data show that while honeybees appear to alter patterns of pollen transfer within *** popu

关键词： Apis mellifera Banksia ericifolia Proteaceae seedling performance seed vigour

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构建你的求职网

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英语沙龙（高中） 2005年第3期 44-46页

作者： Thomas j.denham 徐莹

查阅报纸的分类广告是很多人求职的惟一方式。可惜据统计,只有10%到20%的职位是登广告的,也就是说,80%到90%的职位是隐藏在职业市场中的。正因为如此,构建求职网居求职战略中的首位。

关键词：求职联系人关系网分类广告每个人职业信息建议指导者查阅职位

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The opportunity cost of androgen suppression in locally advanced prostate cancer

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Asian journal of Andrology 2013年第3期15卷 356-357页

作者： Phillip j Gray jason A Efstathiou William U Shipley Harvard Radiation Oncology Program Boston MA 02114 USA Department of Radiation Oncology Massachusetts General Hospital Boston MA 02114 USA

The use of androgen suppression ther- apy （AST） and radiotherapy for locallyadvanced prostate cancer has become the standard of care worldwide. At the same time, it has become clear that AST carries significant risk for side effects. Recently, denham and colleagues have reported ini- tial quality of life （QoL） results from the TROG 03.04 RADAR trial. The authors identify clinically meaningful decrements in patient-reported QoL for those treated with 18 months of AST vs. 6 months but only marginal differences at 36 months. Once survival data becomes available, these data will help to frame any benefits seen for longer courses of AST.

关键词： PHASE-III TRIAL QUALITY-OF-LIFE DEPRIVATION THERAPY CARDIOVASCULAR MORTALITY RADIATION-THERAPY RANDOMIZED-TRIAL RADIOTHERAPY DURATION

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毛细支气管炎患者的RSV测试:何种鼻咽采样方法最佳

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世界核心医学期刊文摘（儿科学分册） 2005年第10期1卷 20-20页

作者： Macfarlane P. denham j. Assous j. Hughes C. 郭战宏 Department of Child Health Rotherham General Hospital Moorgate Road Rotherham S60 2UD Unit ed Kingdom Dr.

Lower nasal swab and higher nasopharyngeal aspirate samples were compared for RSV immunofluorescence and pain score in infants hospitalised with acute bronchi olitis. The nasal swab procedure was significantly less pa... 详细信息

关键词：毛细支气管炎 RSV 采样方法阳性病例采样过程荧光检验吸出阴性结果

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