scholarly journals Revisiting «Malaya Sosva» state reserve characteristics of fauna and population structure of small mammals

2020 ◽  
Vol 9 (3) ◽  
pp. 86-92
Author(s):  
Alyona Y. Levykh ◽  
Natalya E. Suppes ◽  
Vladimir S. Vilkov ◽  
Anastasiya S. Trushnikova
Keyword(s):  
Population Structure ◽  
Small Mammals ◽  
Mixed Forest ◽  
Maximum Level ◽  
Flood Plain ◽  
Pitfall Trap ◽  
Research Area ◽  
Climatic Conditions ◽  
Spruce Forest ◽  
Pteromys Volans

The paper deals with the study of species composition and small mammals population structure of Malaya Sosva (Little Sosva) state nature reserve, Khanty-Mansi Autonomous Okrug Yugra, Russia. The research was conducted within the last ten days of June, 2019 on the Malaya Sosva River flood plain (Shukhtungort ranger station neighborhood, northern taiga). The animals were registered in typical biotopes of the research area: a herb-oxalis pinery, a lingonberry-lidum pinery, a lingonberry-pleurocarpous moss pinery, a herb-oxalis spruce forest, a herb-woodreed pinery, on the skirts of a mixed forest around the ranger station on the border of a mowed secondary meadow. In the course of investigation, the following five species of small rodents and insectivores were registered: Myodes rutilus, Myodes rufocanus, Sorex caecutiens, Talpa europaea, Pteromys volans. M. rutilus was an absolute dominant species in terms of numbers in the majority of the studied biotopes. S. caecutiens is co-dominating in the herb-oxalis pinery and herb-oxalis spruce forest, and M. rufocanus is co-dominating in the lingonberry-lidum pinery. In the herb-woodreed pinery, only individuals of S. caecutiens species were caught in a pitfall trap. Communities of small mammals in different types of habitats show low values of species diversity and sustainability due to harsh natural-climatic conditions of the region. A small mammals community of mature herb-oxalis pinery on the bank of Svyatoy Sor Lake, where the protected species, Pteromys volans, was registered, shows the highest values of abundance of small mammals and a maximum level of overall welfare index. It suggests that the habitat under study should be studied further and protected.

Species composition and population structure of small mammals of the vishera reserve at low abundance

2005 ◽  
Vol 36 (2) ◽  
pp. 135-137
Author(s):  
V. Yu. Dubrovskii ◽  
M. V. Roshchin ◽  
S. A. Cherepushkin
Keyword(s):  
Population Structure ◽  
Species Composition ◽  
Small Mammals

scholarly journals Environmental effectiveness of the cross compliance standard 4.6 ‘Minimum livestock stocking rates and/or appropriate regimens’

2015 ◽  
Vol 10 (1s) ◽  
Author(s):  
Lucia Sepe ◽  
Mauro Salis ◽  
Rosa Francaviglia ◽  
Marco Fedrizzi ◽  
Antonio Melchiorre Carroni ◽  
...  
Keyword(s):  
Animal Species ◽  
Maximum Level ◽  
Farming System ◽  
Climatic Conditions ◽  
Stocking Rate ◽  
Italian Regions ◽  
Environmental Effectiveness ◽  
The Cross ◽  
Stocking Rates ◽  
Cross Compliance

The paper presents the main results of the monitoring on the effectiveness of the cross compliance standard 4.6 ‘Minimum livestock stocking rates and/or appropriate regimes’ carried out in two case studies within the project MO.NA.CO: sheep grazing in medium-rich pastures in southern Apennines and in the plain of Sardinia, Italy. The monitoring involved aspects related to soil, flora, livestock and economics (competitiveness differential). The study showed, although in the short term, that the minimum stocking rate 0.2 LU/ha/year was not effective and, conversely, the effectiveness of the maximum level of stocking rate (4 LU/ha) for the maintenance of the habitat. The generalization in applying minimum and maximum rate, not taking into account the climatic conditions, forage resources or farming system (including the species of grazing animal) may lead to a serious nullification of the conditions of the Standard. The authors recommend to identify homogeneous areas and eligible specific stocking rates from all Italian regions, also considering the animal species.

Pleistocene stratigraphy, paleopedology, and paleoecology of a multiple till sequence exposed on the Little Bear River, Western District of Mackenzie, N.W.T., Canada

1993 ◽  
Vol 30 (4) ◽  
pp. 851-866 ◽  
Author(s):  
O. L. Hughes ◽  
C. Tarnocai ◽  
C. E. Schweger
Keyword(s):  
Transition Zone ◽  
Ice Sheet ◽  
Climatic Conditions ◽  
Canadian Shield ◽  
Laurentide Ice Sheet ◽  
Spruce Forest ◽  
River Section ◽  
Valley Glacier ◽  
Bear River ◽  
Late Wisconsinan

The Little Bear River section lies in a transition zone between Mackenzie Lowland and Canyon Ranges of Mackenzie Mountains. Within the transition zone, the maximum extent of the Laurentide ice sheet overlaps the former extent of montane glaciers that emanated from the higher parts of Canyon Ranges or from the still higher Backbone Ranges to the southwest. Five montane tills, each with a paleosol developed in its upper part, indicate five separate glaciations during each of which a valley glacier emanating from the headwaters of Little Bear River extended eastward into the transition zone. The uppermost of the montane tills is overlain by boulder gravel containing rocks of Canadian Shield origin deposited by the Laurentide ice sheet.Solum and B horizon depths, red colours, and lack of leaching and cryoturbation indicate that although each successive interglacial interval was cooler than the preceding one, even the last of the intervals was warmer than the Holocene. Climatic conditions during one of the intervals inferred from the paleobotanic data, particularly spruce forest development, are consistent with conditions inferred from the associated paleosol.The uppermost of the montane tills is thought to correlate with till of Reid (Illinoian) age in central Yukon. The paleosol developed on that till is, accordingly, thought to correlate with the Diversion Creek paleosol developed on drift of Reid age. The Laurentide boulder gravel is assigned to a stade of Hungry Creek Glaciation of Late Wisconsinan age. The Laurentide ice sheet reached its apparent all-time western limit during the Hungry Creek Glaciation maximum.

scholarly journals Agroecological optimization of the technology for growing spring barley in the Penza region using the DSS

2021 ◽  
Vol 4 (46) ◽  
pp. 22-22
Author(s):  
Alexander Saakian ◽  
◽  
Keyword(s):  
Spring Barley ◽  
Calculated Data ◽  
Farming Systems ◽  
Research Area ◽  
Climatic Conditions ◽  
Mineral Fertilizers ◽  
Soil Conditions ◽  
Complete Set ◽  
Actual Yield ◽  
Program Modules

Abstract The article presents the results of modeling the cultivation of barley on leached chernozems of the Penza region. In order to conduct modeling, the Decision Support System (DSS) for agroecological optimization of adaptive farming systems was modernized. The adaptation of the program modules to the climatic and soil conditions of a particular research area allowed us to reach 7% of the error when modeling the cultivation of agricultural crops in the presence of a complete set of indicators necessary for building the model. Technological calculations of the model made it possible to reduce the number of minimum necessary technological operations, as well as rationally distribute the application of mineral fertilizers for the planned yield. The economic calculations of the model allowed us to achieve a high profitability of production of 66±7%. The constructed model was tested at the experimental field in 2020. Practical verification showed the possibility of using the model in agricultural production under normal climatic conditions and its high correlation with the actual results obtained. Statistical analysis of the calculated data of the model and the actual yield with the achieved economic indicators in the conditions of the model field showed the level of reliability of calculations of 95%. Keywords: AGROECOLOGICAL OPTIMIZATION, AGROECOLOGICAL ASSESSMENT, AGROECOLOGICAL MODELING

scholarly journals Tree Change in Nemoral Spruce Forests of the Central Forest Reserve

2021 ◽  
pp. 459-476
Author(s):  
M. Yu. Pukinskaya
Keyword(s):  
Deciduous Forest ◽  
Climatic Conditions ◽  
Spruce Forest ◽  
Forest Reserve ◽  
Spruce Forests ◽  
The Past ◽  
Broad Leaved Forest ◽  
The Russian Federation ◽  
Leaved Forest

The paper discusses changes in forest-forming species in the nemoral spruce forests of the Central Forest Reserve (Tver Region, the Russian Federation). A comparison is made of the characterization of vegetation in the reserve spruce forests, carried out during the first survey of the reserve by Ya. Ya. Alekseev in 1931 (Alekseev, 1935) with the descriptions of vegetation made by the author from 2011 to 2019. It is shown that the coverage of nemoral herbs in the spruce forests of the reserve has increased over the past 90 years. In addition, three types of broadleaf trees (Tilia cordata Mill., Acer platanoides L. and Ulmus scabra Mill.) have greatly increased their abundance in the stand, most notably the linden. In recent decades, the decay of nemoral spruce forests has been taking place in the Central Forest Reserve. The birch-aspenspruce stand is not replenished with spruce renewal but is replaced by linden-maple forests. The vitality of spruce undergrowth is deteriorating. After the decay of a spruce forest, a change of the tree dominants occurs on 74% of the trial plots and the stand continues with a spruce forest on 26%. The largest part of the reserve's nemoral spruce forests arose after major disturbances 100–150 years ago (on the site of burned-out areas, hurricane windblows and cuttings). Old nemoral spruce forests were formed during the period when severe frosts prevented linden and maple from entering the stand. Currently, the coincidence of climate warming with the aging of the spruce stand and the removal of anthropogenic influence contributed to the release of maple and linden from the undergrowth into the stand and change to a spruce-deciduous forest. Under the prevailing climatic conditions, a return to the spruce forest is possible in the event of a burning out or when the climate becomes cold. The nemoral spruce forest is an ecotone type and, depending on conditions, becomes a spruce or broad-leaved forest.

scholarly journals Organohalogen emissions from saline environments – spatial extrapolation using remote sensing as most promising tool

2012 ◽  
Vol 9 (3) ◽  
pp. 1225-1235 ◽  
Author(s):  
K. Kotte ◽  
F. Löw ◽  
S. G. Huber ◽  
T. Krause ◽  
I. Mulder ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Rapid Change ◽  
Research Area ◽  
Climatic Conditions ◽  
Aral Sea ◽  
Daily Production ◽  
Saline Environments ◽  
Laboratory Setup ◽  
Promising Tool ◽  
Supervised Image Classification

Abstract. Due to their negative water budget most recent semi-/arid regions are characterized by vast evaporates (salt lakes and salty soils). We recently identified those hyper-saline environments as additional sources for a multitude of volatile halogenated organohalogens (VOX). These compounds can affect the ozone layer of the stratosphere and play a key role in the production of aerosols. A remote sensing based analysis was performed in the Southern Aral Sea basin, providing information of major soil types as well as their extent and spatial and temporal evolution. VOX production has been determined in dry and moist soil samples after 24 h. Several C1- and C2 organohalogens have been found in hyper-saline topsoil profiles, including CH3Cl, CH3Br, CHBr3 and CHCl3. The range of organohalogens also includes trans-1,2-dichloroethene (DCE), which is reported here to be produced naturally for the first time. Using MODIS time series and supervised image classification a daily production rate for DCE has been calculated for the 15 000 km2 ranging research area in the southern Aralkum. The applied laboratory setup simulates a short-term change in climatic conditions, starting from dried-out saline soil that is instantly humidified during rain events or flooding. It describes the general VOX production potential, but allows only for a rough estimation of resulting emission loads. VOX emissions are expected to increase in the future since the area of salt affected soils is expanding due to the regressing Aral Sea. Opportunities, limits and requirements of satellite based rapid change detection and salt classification are discussed.

scholarly journals Identification of types of buffaloes available in Kanihari buffalo pocket of Mymensingh district

2015 ◽  
Vol 2 (1) ◽  
pp. 109-115
Author(s):  
Md Mahmodul Hasan Sohel ◽  
Md Ruhul Amin
Keyword(s):  
Coat Color ◽  
Flood Plain ◽  
Climatic Conditions ◽  
The Body ◽  
River Bank ◽  
Body Appearance ◽  
Type 3 ◽  
River Type

The buffaloes are reared by many races under diverse agro-climatic conditions of Bangladesh. The buffaloes of Bangladesh are mostly indigenous in origin. Both the swamp and river type buffaloes are found in Bangladesh and they can be found throughout the country. However, their concentration is higher in coastal part, Meghna-Ganga and Jamuna-Brahamaputra flood plain, subsequently forming buffalo pockets. This study was conducted to identify the types of buffaloes and the sources of breeding buffaloes in one of those buffalo pockets called Kanihari buffalo pocket situated in Mymenshing district. Direct interviewing method was used to collect the data from the owner of the buffaloes. According to the body shape, coat color and horn pattern, buffaloes of this region were categorized into different categories. Abundant natural green grasses in the river bank of old Brahammaputra gave this area as a shape of a buffalo pocket. This pocket does not have any distinct breed and the buffalo population is mostly mixed and exotic. Introduction of swamp germplasm occurred when buffalo cows are temporarily migrated to Bathan area of Sylhet. Morphometric characteristics (coat color, horn pattern and body appearance) of Type-1, Type-2 and Type-3 buffaloes are similar to Murrah group (Murrah and Nili- Ravi), Surti group and indigenous river type buffaloes, respectively. This is the first study which identifies and morphologically characterizes the buffalo population in Kanihari buffalo pocket; however, in depth genotypic study is required in order to identify the origin or breeds available in this area.Res. Agric., Livest. Fish.2(1): 109-115, April 2015

Vipera berus (Linnaeus, 1758) remains from the Late Pleistocene of Slovakia

2017 ◽  
Vol 38 (2) ◽  
pp. 133-144 ◽  
Author(s):  
Martin Ivanov ◽  
Andrej Čerňanský
Keyword(s):  
Late Pleistocene ◽  
Mixed Forest ◽  
Axial Skeleton ◽  
Species Group ◽  
Climatic Conditions ◽  
Mammalian Fauna ◽  
Humid Climate ◽  
Vipera Berus ◽  
Faunal Assemblages ◽  
The Common

Completely preserved specimens of fossil snakes are extremely rare and ophidian palaeontologists are usually dependent only on disarticulated elements of a postcranial skeleton. Here we present an unusually well-preserved specimen of a small viperid snake from the Late Pleistocene firm travertine at the famous Gánovce-Hrádok Neanderthal mound in Slovakia. The complex study of both cranial and axial skeleton with well-preserved maxilla and basiparasphenoid confirms the presence of a viper from theVipera berusspecies group, and recent distribution ofV. berusspecies complex members supports identification of these preserved remains as belonging to the common adder,V. berus(Linnaeus, 1758). Associated faunal assemblages of the MFG-C and D mammalian fauna groups reported from the firm travertine indicate a humid climate in a predominantly woodland environment with typical forest species in the Gánovce-Hrádok vicinity throughout the Eemian optimum, and mixed forest and steppe environments in the late Eemian to early Weichselian stages. Occurrence ofV. berusdocuments the presence of open or semi-open biotopes with low vegetation. AlthoughV. berusoccurs in the Quaternary glacial/interglacial cycle and throughout the entire warm part, it never dominated herpetofaunal assemblages during the climatic optimum. Therefore, the presence ofV. berusmost likely indicates late Eemian or early Weichselian (interstadial) climatic conditions.

scholarly journals Role of different planting techniques in improving the water logging tolerance and productivity of sesame (Sesamum indicum L.)

2015 ◽  
Vol 50 (3) ◽  
pp. 193-198
Author(s):  
M Aslam ◽  
HM Nasrullah ◽  
M Akhtar ◽  
B Ali ◽  
M Akram ◽  
...  
Keyword(s):  
Grain Yield ◽  
Root Zone ◽  
Research Area ◽  
Climatic Conditions ◽  
Semiarid Region ◽  
Research Station ◽  
Root Zones ◽  
Water Logging ◽  
Arid And Semiarid

Sesame is a well known oil seed crop in arid and semiarid region of Pakistan and its productivity is affected due to sensitiveness to water logging in the root zones. The experiment was conducted at research area of Agronomic Research Station, Bahawalpur during the year 2010 and 2011. The crop was sown by three different planting techniques i.e. flat sowing with 45cm apart rows, ridge sowing with 45cm apart, bed sowing with 60/30 cm i.e. 60 cm wide beds with 30 cm furrow between the beds. The data revealed that maximum number of plants wilted in flat planting as compared to other methods of planting were taken in this experiment. It was also recorded that bed planting at 90cm apart beds gave maximum grain yield of 843 kg ha-1 followed by ridge planting (seed spreading by broadcast and with augmented furrows) with a grain yield of 811 kg ha-1. The lowest yield was obtained from conventional method of sowing which gave 349 kg ha-1 grain yield. Water logging stress in the root zone can successfully be avoided by planting sesame on beds or ridges under climatic conditions of Bahawalpur.Bangladesh J. Sci. Ind. Res. 50(3), 193-198, 2015

Vegetation patterns and site relationships in the Saskatchewan River delta

1972 ◽  
Vol 50 (3) ◽  
pp. 647-675 ◽  
Author(s):  
Herman J. Dirschl ◽  
Robert T. Coupland
Keyword(s):  
Principal Component Analysis ◽  
Association Analysis ◽  
Mixed Forest ◽  
Principal Component ◽  
Nutrient Status ◽  
Flood Plain ◽  
Component Analysis ◽  
River Delta ◽  
Moisture Regime ◽  
Landscape Units

This 5-year study attempted to order the landscape pattern of the flood plain complex in the Saskatchewan River delta. The approach involved a stepwise progression, from traditional, subjective classification of the vegetation and mapping by air photo interpretation, to objective classification using association analysis, and final verification by stand and species ordinations through principal component analysis of bog, fen, and mixed forest types. Association analysis efficiently separated the wide vegetational variation according to discontinuities in species composition. The terminal groups of stands showed pronounced affinities for distinct positions in the landscape. The application of principal component analysis to these landscape units showed moisture regime, nutrient status, and pH to be the most significant gradients controlling distribution of species and communities. The interactions of these factors with each other, and with several physical characteristics, have been revealed.

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