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1252篇 您的检索式:作者名="Buchholz"
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1Using resistance distance from circuit theory to model dispersal through habitat corridors显示文摘Aims Resistance distance(RD),based on circuit theory,is a promising metric for modelling effects of landscape configuration on dispersal of organ-isms and the resulting population and community patterns.The values of RD reflect the likelihood of a random walker to reach from a source to a certain destination in the landscape.Although it has successfully been used to model genetic structures of animal populations,where it most often outperforms other isolation metrics,there are hardly any applications to plants and,in particular,to plant community data.Our aims were to test if RD was a suitable metric for studying dispersal processes of plants in narrow habitat corridors(linear landscape ele-ments[LLE]).This would be the case,if dispersal processes(seed dis-persal and migration)resembled random walks.Further,we compared the model performance of RD against least-cost distance(LCD)and Euclidean distance(ED).Finally,we tested the suitability of different cost surfaces for calculations of LCD and RD.Methods We used data from 50 vegetation plots located on semi-natural LLE(field margins,ditches,road verges)in eight agricultural landscapes of Northwest Germany.We mapped LLE,including hedges and tree rows,from aerial images in a Geographic Information System,con-verted the maps into raster layers,and assigned resistance values to the raster cells,where all cells outside of LLE received infinite resist-ance and,thus,represented barriers to dispersal.For all pairs of plots within study areas,we calculated Jaccard similarity assuming that it was a proxy(or correlate)of dispersal events between plots.Further,we calculated RD and LCD of the network of LLE and ED between the plots.We modelled the effects of distance metrics on community similarity using binomial generalized linear mixed models.Important Findings ED was clearly the least suitable isolation metrics.Further,we found that RD performed better than LCD at modelling Jaccard similar-ity.Predictions varied markedly between the two distance metrics suggesting that RD comprises additional information about the landscape beyond spatial distance,such as the possible presence of multiple pathways between plots.Cost surfaces with equal cell-level resistances for all types of LLE performed better than more complex ones with habitat-specific resistances.We conclude that RD is a highly suitable measure of isolation or,inversely,connec-tivity for studying dispersal processes of plants within habitat cor-ridors.It is likely also suitable for assessing landscape permeability in other landscape types with areal habitats instead of narrow cor-ridors.RD holds the potential to improve assessments of isolation(or connectivity)for models of regional population and meta-com-munity dynamics.Jan Thiele Sascha Buchholz Jens Schirmel 2018Journal of Plant Ecology2018,11,3:3
2Electrical and band-gap properties of amorphous zinc-indium-tin oxide thin filmsD.B. Buchholz D.E. Proffit M.D. Wisser T.O. Mason R.P.H. Chang 2012Progress in Natural Science:Materials International2012,22,1:2
3Extracorporeal shockwave lithotripsy vs. percutaneous nephrolithotomy vs. flexible ureterorenoscopy for lower-pole stones显示文摘Thomas Knoll Noor Buchholz Gunnar Wendt-Nordahl 2012Arab Journal of Urology2012,,3:2
4On the active role of water during partial oxidation of n-butane to maleic anhydride over (VO)2P2O7 catalysts 显示文摘Zanthoff H W Sananes-Schultz M Buchholz S A 1998Applied Catalysis A:General1998,172,:1
5Short RNA duplexes produced by hydrolysis with Escherichia coli RNase III mediate effective RNA interference in mammalian cells显示文摘Yang D Buchholz F Huang Z 2002Proc Natl Acad Sci USA2002,99,15:1
6Oligosaccharide synthesis by dextransucrase: new unconventional acceptors 显示文摘Demuth K Jordening H J Buchholz K 2002Carbohydrate Research2002,,337:1
7DEQOR:a web-based tool for the design and quality control of siRNAs显示文摘Henschel A Buchholz F Habermann B 2004Nucleic Acids Res2004,32,:1
8Short RNA duplexes produced by hydrolysis with Escherichia coli RNase Ⅲ mediate effective RNA interference in mammalian cells 显示文摘Yang D Buchholz F Huang Z 2002Proc Natl Acad Sci USA2002,99,:1
9Three-dimensional CT scan stone recon- struction for the planning of percutaneous surgery in a morbidly obese patient显示文摘Buchholz N P 2000Urol Int2000,65,:1
10Statement of the science concerning locoregional treatments after preoperative chemotherapy for breast cancer:a National Cancer Institute conf-erence显示文摘Buchholz TA Lehman CD Harris JR 2008J Clin Oncol2008,26,5:1
11Derivation of functional retinal pigmented epithelium from induced pluripotent stem cells显示文摘Buchholz DE Hikita ST Rowland TJ 0,,10:1
12Simultaneous Antegrade/Retrograde Upper Urinary Tract Access: Bart’s Modified Lateral Position for Complex Upper Tract Endourologic Pathologic Features显示文摘Konstantinos Moraitis Prodromos Philippou Tamer El-Husseiny Hassan Wazait Junaid Masood Noor Buchholz 2012Urology2012,,2:1
13Hydrogen inhalation ameliorates oxidative stress in transplantation induced intestinal graft injury显示文摘Buchholz BM Kaczorowski DJ Sugimoto R 2008Transplant2008,8,63:1
14Bovine respiratory syncytial virus nonstructural proteins NS1 and NS2 cooperatively antagonize alpha/beta interferon induced antiviral response 显示文摘Schlender J Bossert B Buchholz U 2000J Virol2000,74,18:1
15Fracture analyses and experimental results of crack growth under general mixed mode loading conditions显示文摘Buchholz F G Chergui A Richard H A 2004Engineering Fracture Mechanics2004,,71:1
16Alternative approaches for efficient inhibition of hepatitis C virus RNA replication by small interfering RNAs显示文摘KRONKE J KITTLER R BUCHHOLZ F 2004J Virol2004,78,7:1
17Modern superabsorbent polymers显示文摘Fredric L Buchholz Andrew T Graham 1996J of Chem Edu1996,73,6:1
18A new logic tot DNA engineering using recombination in Escberichia coli 显示文摘Zhang Y Buchholz F Muyrers JP et d 1998Nat Genet1998,20,2:1
19A novel approach for phase-type fitting with the EM algorithm显示文摘Thumer A Buchholz P Telek M 2006IEEE Transactions on Dependable and Secure Computing2006,3,3:1
20Automation of the Powder-Injection-Moulding Process for Micro-Mechan- ical Parts CIRP Annals显示文摘Fleischer J Buchholz C Weule H 2003Manufacturing Technolo- gy2003,52,1:1
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