scholarly journals Species of herbivore mammals in Striltsivsky Steppe and their environment-forming role for the ecosystems of the nature reserve

2020 ◽  
pp. 61-71
Author(s):  
Denys Lazariev ◽  
Vadym Moroz ◽  
Larysa Koroletska
Keyword(s):  
Data Analysis ◽  
Wild Boar ◽  
Vegetation Cover ◽  
Nature Reserve ◽  
Roe Deer ◽  
Large Plant ◽  
Steppe Plant ◽  
Fauna Composition ◽  
Plant Feeders ◽  
Literature Data Analysis

The article describes the key herbivore mammals species of in Striltsivsky Steppe. The authors noticed changes in the list of mammalian genera, namely, a decrease in the number of certain groups of characteristic steppe plant feeders, as well as the appearance and distribution of species common for forest biotopes. An increase in the number of large plant feeders (such as wild boar and roe deer) was noted, although the nature and scale of their environment-forming role are insufficient in suppressing reservogenic successions of the vegetation cover. Based on own observations and literature data analysis, the authors predict that the relevant trends in the flora and fauna composition in the reserve will continue in the future provided that the current regime of its territory remains the same.

Long-term population dynamics of the red deer and European roe deer at the protected and not-protected areas in Mountain Crimea

2017 ◽  
Vol 7 (4) ◽  
pp. 65-72
Author(s):  
V. N. Shmagol' ◽  
V. L. Yarysh ◽  
S. P. Ivanov ◽  
V. I. Maltsev
Keyword(s):  
Population Dynamics ◽  
Protected Areas ◽  
Red Deer ◽  
Nature Reserve ◽  
Roe Deer ◽  
Precipitation Amount ◽  
Annual Precipitation ◽  
Population Number ◽  
The Impact

<p>The long-term population dynamics of the red deer (<em>Cervus elaphus</em> L.) and European roe deer (<em>Capreolus</em> <em>capreolus</em> L.) at the mountain and forest zone of Crimea during 1980-2017 is presented. Fluctuations in numbers of both species are cyclical and partly synchronous. Period of oscillations in the population of red deer is about 25 years, the average duration of the oscillation period of number of roe deer is 12.3 years. During the fluctuations in the number the increasing and fall in population number of the red deer had been as 26-47 %, and roe deer – as 22-34 %. Basing on the dada obtained we have assumed that together with large-scale cycles of fluctuations in population number of both red deer and roe deer the short cycles of fluctuations in the number of these species with period from 3.5 to 7.5 years take place. Significant differences of the parameters of cyclical fluctuations in the number of roe deer at some sites of the Mountainous Crimea: breaches of synchronicity, as well as significant differences in the duration of cycles are revealed. The greatest deviations from the average values of parameters of long-term dynamics of the number of roe deer in Crimea are noted for groups of this species at two protected areas. At the Crimean Nature Reserve the cycle time of fluctuations of the numbers of roe deer was 18 years. At the Karadag Nature Reserve since 1976 we can see an exponential growth in number of roe deer that is continued up to the present time. By 2016 the number of roe deer reached 750 individuals at a density of 437 animals per 1 thousand ha. Peculiarity of dynamics of number of roe deer at some sites proves the existence in the mountain forest of Crimea several relatively isolated groups of deer. We assumed that "island" location of the Crimean populations of red deer and European roe deer, their relatively little number and influence of permanent extreme factors of both natural and anthropogenic origination have contributed to a mechanism of survival of these populations. The elements of such a mechanism include the following features of long-term dynamics of the population: the reduction in the period of cyclic population fluctuations, while maintaining their amplitude and the appearance of additional small cycles, providing more flexible response of the population to the impact of both negative and positive environmental factors. From the totality of the weather conditions for the Crimean population of roe deer the recurring periods of increases and downs in the annual precipitation amount may have relevance. There was a trend of increase in the roe deer population during periods of increasing annual precipitation.</p>

scholarly journals Vegetation cover and small mammals as the components of biocoenosis in the conditions of the Volga Upland

2017 ◽  
Vol 6 (2) ◽  
pp. 18-23
Author(s):  
Elena Evgenievna Boryakova
Keyword(s):  
Small Mammals ◽  
Vegetation Cover ◽  
Nature Reserve ◽  
Complex Structure ◽  
Distinct Group ◽  
Steppe Zone ◽  
Point Of View ◽  
Forest Steppe ◽  
Oak Forest ◽  
The Village

The study of the nature reserve oak forest near the village of Pelya-Khovanskaya ecosystem was done in the region of Nizhny Novgorod. The investigated wood is unique for its complex structure. It is situated in the forest-steppe zone, characterized by a high species diversity of small mammals and vegetation, which indicates the complexity of trophic and spatial connections. Several series of sample plots were described: 41 of 2020 m and a number of 11 m sites, totaling 300. Abundance of species by Brown-Blanke scale and the number of specimens of adolescence were specified for each 1 sq. m. plot. Mammals were trapped with the help of trapping grooves and transects method. Vegetation cover is characterized by the presence of a clear intra-differentiation as well as the existence of two basic ecologo-coenotic groups/cores - the nemoral (with Pulmonaria obscura Dum. as the center species of the core) and the meadow-fringe. The most distinct group is formed by forest-shoot species. It can be explained by more forest-steppe rather than nemoral nature of vegetation. Small mammals are represented by the following species: common and small shrews, small forest mouse, yellow-throated and field mice and harvest mouse, vole-housekeeper, common, plowed and red voles, European mole. Two species among them - vole-housekeeper and mouse-baby - are listed in the Red Book of the Nizhny Novgorod Region. Matching burrows of mouse-like rodents with soil richness with nitrogen and humidity, two well-defined peaks are observed. The greatest number of burrows is found in places where the soil is high in nitrogen. Moles were found in areas with a large projective coating of Primula veris: coefficient Spearman rank 0,50. There was a negative correlation of the number of moles and vegetation covering of Pyrethrum corymbosum (-0,46), which is the marker of the driest parts in the forest. In general, the nature reserve oak forest near the village of Pelya-Khovanskaya is of considerable interest, both from botanical and from zoological point of view. Long-term studies of biocoenosis will allow to monitor the facility and to correct the proposed protective measures.

scholarly journals Antigen mimicry followed by epitope spreading: a pathogenetic trigger for the clinical morphology of lichen planus and its transition to Graham Lassueur Piccardi Little Syndrome and keratosis lichenoides chronica - Medical hypotheses or reality?

2009 ◽  
Vol 84 (6) ◽  
pp. 682-688 ◽  
Author(s):  
Georgi Tchernev ◽  
Pietro Nenoff
Keyword(s):  
Data Analysis ◽  
Lichen Planus ◽  
Clinical Picture ◽  
Epitope Spreading ◽  
Pathogenetic Factor ◽  
Ulcerative Lesions ◽  
Near Future ◽  
Antigen Mimicry ◽  
Literature Data Analysis

Literature data analysis, providing an exact explanation of the lichen planus pathogenesis, as well as its transition into other rare forms such as Keratosis lichenoides chronica or Graham Lassueur Piccardi Little Syndrome are scant, or totally missing. The chronological course of the disease, known in the literature as lichen planus, varies. Some patients develop Lichen planus or lichen nitidus and there is no logical explanation why. It is also not clear why single patients initially develop ulcerative lesions in the area of the mucosa and only in a few of them these lesions affect the skin. Antigen Mimicry and Epitope Spreading could be the possible pathogenic inductor in cases of lichenoid dermatoses, as well as the cause for their transition into ulcerative, exanthematous or other rare forms. The Epitope Spreading is probably not the leading pathogenetic factor in lichen planus but a phenomenon which occurs later. This manuscript analyzes some basic pathogenic aspects and presents some possible medical hypotheses regarding the heterogenic clinical picture and pathogenesis of lichen planus and lichenoid like pathologies of the skin which, in the near future should be analyzed in details in order to clarify several dilemmas the clinical dermatologist has to face.

scholarly journals  Cadmium, lead, and mercury concentrations in tissues of roe deer (Capreolus capreolus L.) and wild boar (Sus scrofa L.) from Lowland Croatia

2011 ◽  
Vol 29 (No. 6) ◽  
pp. 624-633 ◽  
Author(s):  
E. Srebočan ◽  
A. Prevendar Crnić ◽  
A.M. Ekert Kabalin ◽  
M. Lazarus ◽  
JurasovićJ ◽  
...  
Keyword(s):  
Wild Boar ◽  
Mercury Concentration ◽  
Roe Deer ◽  
Lead Concentration ◽  
Cadmium Concentration ◽  
Age Groups ◽  
Capreolus Capreolus ◽  
Point Of View ◽  
European Countries ◽  
Cadmium Lead

Cadmium, lead, and mercury concentrations were determined in roe deer and wild boar tissues (muscle, liver, kidney) of three different age groups from lowland Croatia. Cadmium concentrations in the examined tissues increased with age in both species, being the highest in the kidney, and higher in roe deer as compared to wild boar. Lead concentration was higher in younger animals in comparison with both older groups. Contrary to the expectations, roe deer tissues revealed mostly higher lead concentrations than those of wild boar. Mercury concentration in the tissues of the animals examined was relatively low and no correlation with age was found. However, mercury concentration was higher in kidney than in liver with both species. Wild boar had higher mercury concentrations in tissues than roe deer in all age groups. Cadmium and mercury concentrations in both species from lowland Croatia are comparable to those given in similar studies in other European countries, while lead concentration was lower in wild boar and higher in roe deer tissues than those in the same species from European countries. From the hygienic point of view, the muscle samples from roe deer and wild boar were edible as the concentrations of cadmium and lead did not exceed the values prescribed by the official regulations. However, cadmium concentration in liver exceeded the prescribed values in one fifth of all samples while lead concentrations were lower than the allowed concentrations. Most kidney samples from both animal species contained cadmium exceeding the recommended concentrations, while lead concentrations in all samples did not exceed the official value regulation. Mercury concentrations are no longer (since 2008) a matter of legislative.

scholarly journals ESDA (Exploratory Spatial Data Analysis) of Vegetation Cover in Urban Areas—Recognition of Vulnerabilities for the Management of Resources in Urban Green Infrastructure

2020 ◽  
Vol 12 (5) ◽  
pp. 1933
Author(s):  
Ana Clara M. Moura ◽  
Bráulio M. Fonseca
Keyword(s):  
Data Analysis ◽  
Population Density ◽  
Spatial Data ◽  
Green Infrastructure ◽  
Vegetation Cover ◽  
Urban Areas ◽  
Spatial Behavior ◽  
Spatial Data Analysis ◽  
Exploratory Spatial Data Analysis ◽  
Local Index

From the mapping of urban vegetation cover by high-resolution orthoimages, using IR band and NDVI classification (Normalized Difference Vegetation Index), added to three-dimensional representation obtained by LiDAR capture (Light Detection and Ranging), the volumetric values of vegetal cover are obtained as a base to construct spatial analysis in the district of Pampulha, in Belo Horizonte, investigating the role it plays in the neighborhood. The article aims to analyze the relationship between vegetation cover, income distribution and population density, as a support to urban environmental quality management. It applies Exploratory Spatial Data Analysis (ESDA) to identify the presence of clusters and patterns of spatial distribution and to examine spatial autocorrelation. The results confirm the concentration of vegetation cover in areas of high income and lower population density but the main contribution of the study is the use of a method to analyze the spatial behavior of this distribution. Calculating Moran global index and local index (LISA), these spatial combinations are mainly used to identify transformation pressures, which may result in the definition of priorities for public actions and the construction of proposals for parameterization of vegetation cover to support plans related to green infrastructure in urban areas.

Winter bed-site selection by roe deer (Capreolus capreolus) in Huangnihe Nature Reserve

2013 ◽  
Vol 33 (7) ◽  
pp. 2054-2061
Author(s):  
朱洪强 ZHU Hongqiang ◽  
葛志勇 GE Zhiyong ◽  
刘庚 LIU Geng ◽  
姜春艳 JIANG Chunyan ◽  
张冬冬 ZHANG Dongdong ◽  
...  
Keyword(s):  
Site Selection ◽  
Nature Reserve ◽  
Roe Deer ◽  
Capreolus Capreolus
Sign in / Sign up

Export Citation Format

Share Document