全文获取类型
收费全文 | 147篇 |
免费 | 15篇 |
出版年
2020年 | 2篇 |
2019年 | 4篇 |
2018年 | 4篇 |
2017年 | 7篇 |
2016年 | 8篇 |
2015年 | 2篇 |
2014年 | 2篇 |
2013年 | 12篇 |
2012年 | 5篇 |
2011年 | 4篇 |
2010年 | 2篇 |
2009年 | 5篇 |
2008年 | 6篇 |
2007年 | 3篇 |
2006年 | 10篇 |
2005年 | 4篇 |
2004年 | 5篇 |
2003年 | 8篇 |
2002年 | 2篇 |
2001年 | 3篇 |
2000年 | 5篇 |
1999年 | 3篇 |
1998年 | 2篇 |
1996年 | 2篇 |
1995年 | 2篇 |
1990年 | 2篇 |
1989年 | 3篇 |
1987年 | 4篇 |
1986年 | 2篇 |
1984年 | 2篇 |
1982年 | 4篇 |
1977年 | 2篇 |
1975年 | 2篇 |
1974年 | 1篇 |
1973年 | 1篇 |
1972年 | 1篇 |
1971年 | 2篇 |
1970年 | 1篇 |
1969年 | 1篇 |
1967年 | 1篇 |
1956年 | 3篇 |
1951年 | 2篇 |
1943年 | 1篇 |
1942年 | 1篇 |
1941年 | 1篇 |
1935年 | 1篇 |
1934年 | 1篇 |
1933年 | 1篇 |
1932年 | 1篇 |
1929年 | 1篇 |
排序方式: 共有162条查询结果,搜索用时 15 毫秒
141.
Anna K. Hundsdoerfer Daniel Rubinoff Marc Atti Michael Wink Ian J. Kitching 《Molecular phylogenetics and evolution》2009,52(3):852-865
The hawkmoth genus Hyles comprises some 29 species with a global distribution. In this study, we augment the previous taxon sampling with more species and add sequences from a nuclear gene to produce a refined phylogenetic hypothesis. A total evidence reconstruction based on Bayesian analysis of the combined mitochondrial (COI, t-RNA-Leu, COII; 2284 bp) and nuclear (EF1α; 773 bp) sequences is discussed and compared with the results from separate analyses of the two genes. The total evidence phylogeny corroborates many of the phylogenetic relationships previously postulated within the genus. In addition, the hitherto unsampled enigmatic species Hyles biguttata from Madagascar appears as sister group to Hyles livornicoides from Australia, although support for the relationship is relatively weak. The high level of differentiation of Hyles perkinsi from H. calida (both Hawaii), and the status of these two as sister species, is corroborated by both sources of sequence data. However, their phylogenetic position when mt DNA sequences alone are considered differs markedly from that under total evidence. The previously postulated relationships within the Hyles euphorbiae complex (HEC) s.s. are largely corroborated, but H. dahlii is now more closely related and the HEC s.l. is redefined to include H. zygophylli and H. stroehlei (two species that had not been studied previously using molecular data) and to exclude H. siehei and H. hippophaes. The nuclear sequences alone are insufficiently variable to fully resolve all lineages and the phylogeny suggests that nuclear gene swapping and incomplete lineage sorting have occurred implying recent divergence. The results from the total evidence analysis provide a phylogenetic hypothesis that both corroborates and complements the previous biogeographic scenario, and provides new insights into the origins of several of the included taxa. 相似文献
142.
143.
Elevational gradients are powerful natural experiments for the investigation of ecological responses to changing climates. Automated modified Pennsylvania light traps were used to sample macro‐moth assemblages for three consecutive nights at each of 24 sites ranging from 200 m asl to 1200 m asl within continuous tropical rainforest at Eungella, Queensland, Australia (21°S, 148°E). A total of 13 861 individual moths representing approximately 713 morphospecies and 10 045 individuals belonging to approximately 607 morphospecies where sampled during November 2013 and March 2014 respectively. Moth assemblages exhibited a strong elevational signal during both sampling seasons; we grouped these into lowland and upland assemblages. The dispersal pattern of moth assemblages across the landscape reflected the stratification of vegetation communities across elevation and correlated with shifts in eco‐physical variables, most notably temperature and substrate organic matter. Regional historical biogeographical events likely contributed to the observed patterns. The analysis presented here identifies a set of statistically defined elevationally restricted moths which may be of use as part of a multi‐taxon predictor set for monitoring future ecosystem level changes associated with elevation and, by implication, with climate. 相似文献
144.
Nancy Lane I. J. Kitching J. R. Collier 《Invertebrate reproduction & development.》2013,57(2-3):303-307
145.
Louise A. Ashton Akihiro Nakamura Yves Basset Chris J. Burwell Min Cao Rodney Eastwood Erica Odell Evandro Gama de Oliveira Karen Hurley Masatoshi Katabuchi Sarah Maunsell James McBroom Jürgen Schmidl Zhenhua Sun Yong Tang Terry Whitaker Melinda J. Laidlaw William J. F. McDonald Roger L. Kitching 《Journal of Biogeography》2016,43(1):59-69
146.
R. L. Kitching 《Australian Journal of Entomology》1977,16(4):410-410
New Zealand Insect Pests : D. N. Ferro (Editor). Lincoln University College of Agriculture, New Zealand. 1976. Pp. 311. Price NZ $15.00 (including postage). 相似文献
147.
148.
149.
150.