Seryodkin I.V.,RAS Institute of Radio Engineering and Electronics |
Kostyria A.V.,Institute of Biology and Soil Science |
Goodrich J.M.,Wildlife Conservation Society |
Miquelle D.G.,Institute of Biology and Soil Science
Russian Journal of Ecology | Year: 2013
Daily activity patterns of brown bears were monitored using radiotelemetry from 1993 to 2006, in the Sikhote-Alin Biosphere Reserve and adjacent areas. Outside of the denning period, bears were active for approximately 52% of the 24-hour period. Males were more active (64% of total time) than females (51%). Brown bears in the Sikhote-Alin are diurnal and crepuscular, but switch to a nocturnal pattern in areas of high anthropogenic influence. During the summer months, daily activity patterns were influenced by precipitation, cloud cover, and air temperature. © 2013 Pleiades Publishing, Ltd.
Fibiger M.,Molbechs Alle 49 |
Han H.L.,Northeast Forestry University |
Kononenko V.S.,Institute of Biology and Soil Science
Zootaxa | Year: 2011
Five new species and one subspecies of the family Micronoctuidae (Lepidoptera, Noctuoidea) (Bellulia bibella sp. n., Parachrostia pura sp. n., Tactusa virga sp. n., T. flexus sp. n., T. brevis sp. n., and T. discrepans yunnanensis ssp. n.) are described from South China (provinces Yunnan and Guizhou). Three species, Mimachrostia fasciata Sugi, 1982, T. discrepans Fibiger, 2010 and T. pars Fibiger, 2010 are reported from China for the first time. An updated checklist of the Micronoctuidae from China, including Taiwan is presented consisting of 28 species and 2 two subspecies. Copyright © 2011 Magnolia Press.
Volis S.,Ben - Gurion University of the Negev |
Shulgina I.,Ben - Gurion University of the Negev |
Zaretsky M.,Ben - Gurion University of the Negev |
Koren O.,Institute of Biology and Soil Science
Heredity | Year: 2011
Populations of predominantly selfing plant species often show spatial genetic structure but little is known whether epistatic gene interactions are spatially structured. To detect a possible epistatic effect and a spatial scale at which it operates, we created artificial crosses between plants spanning a range of fixed distances from 1 to 400 m in three populations of wild barley. The self-pollinated and crossed progeny (F1) and two generations of segregated progeny (F2 and F3) were tested in experimentally simulated population environments for relative performance (RP). The measured fitness traits included number of seeds, total seed weight and seed germination. For any of these traits, there was no association between RP of F1, F2 and F3 plants and either pairwise kinship coefficients or crossing distance. In contrast, in all three populations, we found lower seed viability of outcrossed as compared with self-pollinated genotypes in the first generation of segregation. However, in the F3 generation this outbreeding effect disappeared in the two populations and greatly decreased in the third population. For seed production, heterosis in F1 and outbreeding depression in F2 were observed only in the population with unusually high number of heterozygotes. Our findings support the view that in selfing species a spatial mosaic of various locally abundant genotypes represents not randomly fixed combinations of alleles but the co-adapted gene complexes that were sieved by selection, while heterozygotes are characteristic for the transient phase of this process, when segregation and purging of maladaptive genotypes have not yet occurred. © 2011 Macmillan Publishers Limited All rights reserved.
Bakalin V.,Institute of Biology and Soil Science
Bryologist | Year: 2011
The North American hepatic flora includes 24 species of Lophozia distributed among five subgenera and five species of Schistochilopsis. Lophozia pacifica Bakalin is described as new to science, based on retuse leaves clearly decurrent on the dorsal side of the stem and fusiform-cylindrical perianth. Lophozia sect. Heteromorphae R. M. Schust. and L. sect. Savicziae Bakalin are synonymized with L. sect. Lophozia. Lophozia sect. Longidentatae R. M. Schust. is synonymized with Lophozia sect. Excisae R. M. Schust. New combinations are proposed: Lophozia subg. Obtusifolium (H. Buch) Bakalin comb. nov., Lophozia subg. Sudeticae (Schljakov) Bakalin comb. nov., Schistochilopsis sect. Heterogemmae (Jørg.) Bakalin comb. nov., Schistochilopsis incisa var. opacifolia (Culmann) Bakalin comb. nov. © 2011 The American Bryological and Lichenological Society, Inc.
Bakalin V.A.,Institute of Biology and Soil Science
Annales Botanici Fennici | Year: 2010
The Kuril Island Chain, which extends 1200 km in a northeast direction from Hokkaido (Japan) towards the shores of the Kamchatka Peninsula (Russian Federation), unites the boreal flora of the southern Kamchatka with the temperate flora enriched with subtropical elements from the lower elevation belts of Hokkaido. The gradual shift in the liverwort flora from the north to the south is analysed and described. It is shown that the border between East Asian and Circumboreal floristic regions (based on an analysis of liverworts) should run either along the Izmena Straight between Hokkaido and Kunashir Islands, or along the Ekaterina Straight between Kunashir and Iturup Islands, the former being a better-justified position. © 2010 Finnish Zoological and Botanical Publishing Board.
Yamamoto S.,Kobe University |
Beljaev E.A.,Institute of Biology and Soil Science |
Sota T.,Kyoto University
Molecular Phylogenetics and Evolution | Year: 2016
Winter geometrid moths belonging to the genus Inurois comprise nine species that reproduce during early winter, three species that reproduce in late winter, and polymorphic species with genetically diverged early and late winter populations that co-occur widely across the species' range. In our previous studies, we demonstrated that differences in reproductive timing resulted in allochronic reproductive isolation between sympatric populations. In the present study, to assess the evolutionary pattern of reproductive timing within the genus, we determined the phylogenetic relationships among species using nuclear and mitochondrial gene sequences. Nuclear gene tree showed that reproductive season shifts occurred independently in four of 13 divergence events. In two divergence events, allochronic sister lineages were formed in sympatry, suggesting that the segregation of the reproductive season was associated with diversification in the genus Inurois. We also found that the mitochondrial gene tree was quite different from the nuclear gene tree and that mitochondrial introgression may have occurred in a few cases. Although it remains unclear whether early and late winter species actually have hybridized with each other and how strong or stable is the reproductive isolation provided by the reproductive season segregation, our study illuminates the potential importance of allochronic isolation in the diversification process of the genus Inurois. © 2015 Elsevier Inc.
Dolezal J.,Academy of Sciences of the Czech Republic |
Dolezal J.,University of South Bohemia |
Yakubov V.,Institute of Biology and Soil Science |
Hara T.,Hokkaido University
Plant Ecology | Year: 2013
Changes in plant species richness across environmental and temporal gradients have often been explained by the intermediate disturbance hypothesis and a unimodal diversity-productivity relationship. We tested these predictions using two sets of mountain plant communities assembled along postglacial successional and snow depth (disturbance and stress) gradients in maritime Kamchatka. In each community, we counted the number of species in plots of increasing sizes (0. 0025-100 m2) and analyzed them using species-area curves fitted by the Arrhenius power function and the Gleason logarithmic function. A comparison of successional communities along a 270-year-old moraine chronosequence behind the receding Koryto Glacier-representing gradients of increasing productivity and resource competition-confirmed the unimodal species richness pattern. The plant diversity peaked in a 60-80-year-old Salix-Alnus stand where light availability was sufficient to sustain a rich understory combining pioneer and late successional herbs. The closed Alnus canopy on older moraines caused a pronounced decrease in species richness for all plot sizes (interactive stage 80-120 years since deglaciation). A slight increase in species richness in the oldest assortative stages (120-270 years), when Alnus stands are mature, was found only at the smaller spatial scales. This reflects (i) the consolidation of clonal understory dominants and (ii) the absence of other woody species such as Betula ermanii whose invasion would eliminate Alnus and increase diversity at larger spatial scales. A comparative study of major mountain plant communities distributed above the Koryto Glacier foreland did not confirm the highest species richness at intermediate levels of disturbance and stress. Contrary to our expectation, the species richness was highest in alpine tundra and snowbed communities, which are subjected to severe winter frost and a short summer season, while less disturbed communities of subalpine meadows, heaths, and Betula ermanii woods were less species-rich. We attribute this pattern to differences in habitat area and species pool size. © 2013 Springer Science+Business Media Dordrecht.
Shabalin S.A.,Institute of Biology and Soil Science
Entomological Review | Year: 2011
A review of the species of the genus Hoplia from the Russian Far East is given. Lectotypes are designated for Anisoplia cincticollis Faldermann and Hoplia djukini Jacobson. Hoplia cincticollis (Faldermann) is recorded from the Russian Far East for the first time. An original key to the species of the genus Hoplia of the Russian Far East fauna is provided. © 2011 Pleiades Publishing, Ltd.
Shabalin S.A.,Institute of Biology and Soil Science
Zoologicheskii Zhurnal | Year: 2011
A review of the species of the genus Hoplia from the Russian Far East is given. Lectotypes are presented for Anisoplia cincticollis Faldermann and Hoplia djukini Jacobson. Hoplia cincticollis (Faldermann) from the Russian Far East is described for the first time. An original key to Hoplia species of the Russian Far East fauna is provided.
Gontcharov A.A.,University of Cologne |
Gontcharov A.A.,Institute of Biology and Soil Science |
Melkonian M.,University of Cologne
Journal of Phycology | Year: 2010
Nuclear-encoded SSU rDNA, chloroplast LSU rDNA, and rbcL genes were sequenced from 53 strains of conjugating green algae (Zygnematophyceae, Streptophyta) and used to analyze phylogenetic relationships in the traditional order Zygnematales. Analyses of a concatenated data set (5,220 nt) established 12 well-supported clades in the order; seven of these constituted a superclade, termed " Zygnemataceae." Together with genera (. Zygnema, Mougeotia) traditionally placed in the family Zygnemataceae, the " Zygnemataceae" also included representatives of the genera Cylindrocystis and Mesotaenium, traditionally placed in the family Mesotaeniaceae. A synapomorphic amino acid replacement (codon 192, cysteine replaced by valine) in the LSU of RUBISCO characterized this superclade. The traditional genera Netrium, Cylindrocystis, and Mesotaenium were shown to be para- or polyphyletic, highlighting the inadequacy of phenotypic traits used to define these genera. Species of the traditional genus Netrium were resolved as three well-supported clades each distinct in the number of chloroplasts per cell, their surface morphology (structure and arrangement of lamellae) and the position of the nucleus or nuclear behavior during cell division. Based on molecular phylogenetic analyses and synapomorphic phenotypic traits, the genus Netrium has been revised, and a new genus, Nucleotaenium gen. nov., was established. The genus Planotaenium, also formerly a part of Netrium, was identified as the sister group of the derived Roya/Desmidiales clade and thus occupies a key position in the evolutionary radiation leading to the most species-rich group of streptophyte green algae. © 2010 Phycological Society of America.