Vol 3, No 1 (2012)

Cover Page
Articles
Discomycetes from plant, leave and sphagnum litter in ombrotrophic bog (West Siberia)
Filippova N.V.

Abstract

Collection of Discomycetes from two ombrotrophic bogs near Khanty-Mansiysk (boreal zone of West Siberia) was made by direct observation method. 80 specimens were identified and 51 taxa from four orders (Helotiales, Rhytismatales, Pezizales and Ostropales) revealed. Checklist with annotations presents data about occupied substrates, types of plant communities, macro and micro morphological descriptions and comparisons of ecology of species with reports from literature. This group was poorly known in ombrotrophic bogs and supplements our knowledge about the structure of fungal community of peatlands.
Environmental Dynamics and Global Climate Change. 2012;3(1):1-20
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New records of rare and endangered macromycetes in Khanty-Mansiysk region
Zvyagina E.A.

Abstract

The results of field studies (from 2005 to 2011) of rare fungi in the forest, wetland and mountain ecosystems are presented. Our study locations are situated in the central, eastern and western parts of Khanty-Mansiysk region (Western Siberia): in the Bolshoy Yugan basin near Ugut village and in the Yuganskiy nature reserve, in the Bolshoy Salym basin near Salym village, in the Lyamin basin near Lyantor and north of Seliyarovo, in the middle and lower reaches of the river Vakh, in the upper reaches of the river Volya. Specimens were collected by standard methods and stored in the herbarium of the Yuganskiy nature reserve and Komarov Botanikal Institute RAS (LE). The annotated species list includes information about the findings of 23 species: Ascocoryne turficola (Boud.) Korf (Geoglossaceae), Boletopsis grisea (Peck) Bondartsev et Singer (Bankeraceae), Chroogomphus flavipes (Peck) O.K. Mill (Gomphidiaceae), Clavariadelphus pistillaris (L.) Donk (Clavariadelphaceae), Clavariadelphus truncatus (Quél.) Donk (Clavariadelphaceae), Conocybe cyanopus (G.F. Atk.) Kühner (Bolbitiaceae), Cortinarius violaceus (L.) Gray (Cortinariaceae), Entoloma poliopus (Romagn.) Noordel . (Entolomataceae), Fomitopsis cajanderi (P. Karst.) Kotl. et Pouzar (Fomitopsidaceae), Ganoderma lucidum (Curtis) P. Karst. (Ganodermataceae), Gomphus clavatus (Pers.) Gray (Gomphaceae), Gyroporus cyanescens (Bull.) Quél (Gyroporaceae), Lentinus pilososquamulosus L.N. Vassiljeva (Polyporaceae), Lichenomphalia hudsoniana (H.S. Jenn.) Redhead, Lutzoni, Moncalvo et Vilgalys (Hygrophoraceae), Limacella illinita var. rubescens H.V. Sm. (Amanitaceae), Omphalina discorosea (Pilát) Herink et Kotl. (Tricholomataceae), Phaeolepiota aurea (Matt.) Maire (Agaricaceae), Pluteus fenzlii (Schulzer) Corriol et P.A. Moreau (Pluteaceae), Polyporus squamosus (Huds.) Fr (Polyporaceae), Polyporus tubaeformis (P. Karst.) Ryvarden et Gilb. (Polyporaceae), Royoporus badius (Pers.) A.B. De (Polyporaceae), Sarcosoma globosum (Schmidel) Casp. (Sarcosomataceae), Suillus spectabilis (Peck) Kuntze (Suillaceae). For each species the following items are reported: latin name, author, family , IUCN (2010) categories and criteria of rarity and vulnerability of these species in Khanty-Mansiysk region, information about district, river’s basin, community types, substrate, abundance, collector and collection’s number. Chroogomphus flavipes, Clavariadelphus truncatus, Conocybe cyanopus, Entoloma poliopus, Lentinus pilososquamulosus, Limacella illinita var. rubescens, Phaeolepiota aurea, Suillus spectabilis are new species for the Khanty-Mansiysk region. This work contributes to the knowledge about distribution of rare fungi in Khanty-Mansiysk region.
Environmental Dynamics and Global Climate Change. 2012;3(1):1-6
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Could the citation indexes be helpful in quality analysis of dissertations: a case of comparative study in ecology
Glagolev M.V., Karelin D.V., Franovskiy S.Y.

Abstract

By use of the national “Russian Index of Scientific Citation” author citation system and “Google Scholar” (with interface of “Publish or Perish”) a comparative analysis of author citations has been accomplished. Two groups of authors were selected and compared between each other: ones were who recently defended doctoral thesis in Biology (speciality: ecology) and successfully completed doctoral degrees (DS) in 2009-2010, and the others were a similar by number group of leading ecologists (Candidates of Sciences, CS) of the Soil Science Department of Lomonosov Moscow State University. The results show that by scientometric indexes used no significant differences between these two groups were found. Whereas between individual authors scientometric indexes varied considerably. For DS group the maximal number of citations per article varied within 0 and 67, with h-index from 0 to 8, and mean number of author citations per year is equal to the mean number of citations per article (between 0 and 13.06). Provided examples are explain the basic concepts of scientometrics, and their meaning with further recommendations. For more effective estimation of scientific output, a new scientometric index is proposed (Gl-index). Gl-index = SC/(T 2·A), where SC is a ratio of sum of author citations, T is a period (in years) of his publishing activity and A is average number of co-authors.
Environmental Dynamics and Global Climate Change. 2012;3(1):1-12
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High water table can lower a methane emission from soil
Glagolev M.V.

Abstract

Climate models predict that the precipitation will increase under 2×CO 2 scenario leading to raised water tables at some regions. The position of the water table within a peatland can have a large effect on CH 4 emissions. Methane production occurs below the depth of the water table in anaerobic peat. Hence, the greater part of the peat profile that was anaerobic, the greater would be the expected flux. However depth of the water table affects the methane emission with complex interactions, so the effects of temporal variations in the water table level on methane emissions may be controversial. Methane emissions correlated negatively with depths of the water tables in some measurements: high methane emissions were associated with low water tables and vice versa. The suppression of methane emission by a) filling the unsaturated pore space in peat during precipitation and the increased release rate (caused by a declining water table) could explain the result in time scale of some few days; b) suppression of a plant-mediated mechanism of methane emission during super-high water table could explain the result in any time scale (the products of photosynthesis lead to increased root exudations which then promote the microbial formation of methane at depth; this methane is transported via the plant vascular system to the atmosphere; thus both plant-mediated methane production and transport are suppressed by high water table). Also a drop in atmospheric pressure correlates with a precipitation. Hence, the greater part of the methane that was released during pressure dropping, the smaller would be the expected flux after precipitation (in condition of high water table). The author acknowledge the financial support by the European Union FP7-ENV project PAGE21 under contract number GA282700.
Environmental Dynamics and Global Climate Change. 2012;3(1):1-10
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