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Entomological Review - A new species Dyscritulus dzhungaricussp. n. from Kazakhstan is described. It is closely related to D. pygmaeus Mackauer, 1961, diff ering from it in the propodeum with 2... 相似文献
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37 species of the weevil families Brentidae, Apionidae, Nanophyidae, Dryophthoridae, Erirhinidae, and Curculionidae are recorded for Turkey or for the Asian part of the country, most of them, for the first time. Some of the species are also newly recorded for other countries. 相似文献
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E. M. Davidian 《Entomological Review》2016,96(9):1268-1288
A total of 64 species belonging to 10 genera of the subfamily Trioxinae (Hymenoptera, Aphidiidae) are recorded from the former USSR: Betuloxys Mackauer, 1960 (6), Binodoxys Mackauer, 1960 (11), Calaphidius Mackauer, 1961 (1), Falciconus Mackauer, 1959 (2), Harkeria Cameron, 1900 (1), Lipolexis, Förster, 1862 (1), Monoctonia Starý, 1962 (2), Monoctonus Haliday,1833 (6), Sergeyoxys Davidian, 2016 (1), and Trioxys Haliday, 1833 (33). Four species, Harkeria angustivalva (Starý, 1959), Monoctonia japonica Rakhshani et Tomanovic, 2015, Monoctonus mali van Achterberg, 1989, and Trioxys iziphia Mackauer, 1967 are recorded from Russia for the first time. The distribution of 20 species already known from Russia is clarified. 相似文献
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Is increased chromosomal diversity in house mice from Lombardy (Italy) congruent with genic divergence? 下载免费PDF全文
Claudine Montgelard Josette Catalan Janice Britton‐Davidian 《Biological journal of the Linnean Society. Linnean Society of London》2016,118(2):245-261
Recent studies in metacentric (MC) populations of the house mouse, Mus musculus domesticus, singled out underdominance more so than recombination suppression as the foremost barrier to gene flow. Here, MC populations from Lombardy (Italy) were sampled to identify the nature and strength of the barriers to gene flow. The chromosomal analysis recovered the three major MC populations (abbreviated to IBIN, IGAL, both with 2n = 24 and ICRE, 2n = 22), but revealed the existence of a new one (IONE, 2n = 24) which likely derived from IGAL through a single WART (Whole‐Arm Reciprocal Translocation). This, once again, highlights the paramount role of WARTs in the chromosomal diversification of this subspecies. Contacts between MC and standard populations coincided with rivers confirming these hybrid zones as tension zones. Divergence between populations was estimated using available allozyme data. Although the overall low genetic structure globally agreed with the chromosome structure, a large variation in divergence levels was retrieved that only partially matched the underdominance degree. This disparity from expectations highlighted the additional contribution of physical barriers and geographic isolation to the differential rate of evolution of the MC populations of the house mouse. 相似文献
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Fish populations in Albasini and Nandoni dams are negatively affected by extensive netting practices. This observation was made by the authors following a number of fish health assessment surveys related to aquatic pollution in the Luvuvhu River catchment. A comparison between the number and size of fish collected over a period of ten years indicated decreases in the average size and a consistent low number of fish, despite similar extensive sampling efforts. Unregulated netting is a common practice in both dams. This may become a serious problem as fish from these two dams are an important source of protein for the local communities. The purpose of this note is to report that gillnets are illegally used in the system and on the effect this could have on the fish population. The authors suggest educational and awareness initiatives to inform local communities about the importance of utilising fish in a sustainable manner to ensure the livelihood of generations to come. 相似文献