scholarly journals ТЕХНОГЕНЕЗ И СТРУКТУРНО-ФУНКЦИОНАЛЬНЫЕ РЕАКЦИИ ДРЕВЕСНЫХ ВИДОВ: ПОВРЕЖДЕНИЯ, АДАПТАЦИИ, СТРАТЕГИИ. ЧАСТЬ 2. ВЛИЯНИЕ НА ФИЗИОЛОГИЧЕСКИЕ ФУНКЦИИ.

2021 ◽  
Vol 13 (3) ◽  
pp. 11
Author(s):  
Р.В. Уразгильдин ◽  
А.Ю. Кулагин

The present publication is the first of four reviews of reports that have been published over the last 20 years to address the responses of arboreal plants at different hierarchical levels of their organization to anthropogenic factors. The publication covers the effects of different kinds of industrial pollution on macro- and micromorphology of broad and acerose leaves. The specific and nonspecific responses of arboreal plants to the same factor or to different factors, including smokes and toxicants, are differentiated. The adaptive responses within a single leaf or needle may be relatively independent from each other despite the integrity of these plant organs. The causes of such diverse reactions, which ensure the adaptive potential of plants, are discussed with account for the multiplicity of biological functions required for maintaining plant tolerance to anthropogenic impacts.

2021 ◽  
Vol 13 (3) ◽  
pp. 1
Author(s):  
Р.В. Уразгильдин ◽  
А.Ю. Кулагин

The present publication is the first of four reviews of reports that have been published over the last 20 years to address the responses of arboreal plants at different hierarchical levels of their organization to anthropogenic factors. The publication covers the effects of different kinds of industrial pollution on macro- and micromorphology of broad and acerose leaves. The specific and nonspecific responses of arboreal plants to the same factor or to different factors, including smokes and toxicants, are differentiated. The adaptive responses within a single leaf or needle may be relatively independent from each other despite the integrity of these plant organs. The causes of such diverse reactions, which ensure the adaptive potential of plants, are discussed with account for the multiplicity of biological functions required for maintaining plant tolerance to anthropogenic impacts.


2021 ◽  
Vol 13 (4) ◽  
pp. 11
Author(s):  
Р.В. Уразгильдин ◽  
А.Ю. Кулагин

The present publication is the fourth in the series of four reviews of reports that have been published over the last 20 years to address the responses of arboreal plants at different hierarchical levels of their organization to anthropogenic factors. In the fourth part, modern methodological approaches to assessing the conditions of forests are considered and the most promising of them are distinguished. The conditions of forests under anthropogenic pollution deteriorate in general; however, the degree of deterioration much depends on tree species and pollution type. The resistance of biosystems to anthropogenic factors is based on adaptive responses involving all levels of biological organization, from cytogenetic to ecosystemic. Special attention is paid to adaptive responses related to plant resistance to metals. The development of the theory of the adaptive strategies of plants is traced starting from the Ramensky-Grime concept of phytocenotypes. The industrial pollution is a novel, in the historical perspective, environmental factor for plant. This makes it reasonable to develop further the concepts related to adaptive strategies of plant species with account for their adaptive potential, variability, resistance, and ecological plasticity. An original approach to the discovery and characterization of strategies of adaptation of plants to anthropogenic factors is proposed based on the analysis of current literature and decades of original studies.


2021 ◽  
Vol 13 (4) ◽  
pp. 1
Author(s):  
Р.В. Уразгильдин ◽  
А.Ю. Кулагин

The present publication is the third of four reviews of reports that have been published over the last 20 years to address the responses of arboreal plants at different hierarchical levels of their organization to anthropogenic factors. Here, the impact of different types of industrial pollution on the radial accretion of the stock and on the rootage is considered. Most studies evidence that industrial pollution leads to unequivocal decreases in the radial accretion and in the sensitivity of the accretion to climatic cues, to the redistribution of the early and late wood in the total accretion, to changes in the durations of the ontogenetic periods and disorders in ontogenetic cycles, to the emergence or loss of the false annual zones, to accelerated senescence of forests, and to increases in the dependencies of accretion on the distance between forests and the sources of pollution and on the features of landscape. The decreases in the annual zone widths strongly depend on the contents of metals and microelements in the zones. Upon a decrease in pollutant discharges, the annual accretion may become restored. With that, some types of oil products, radionuclides and mixed pollutants can stimulate accretion depending on plant species, age, and conditions. As a rule, industrial or experimental pollution causes significant decreases in soil contents of all rootage components. The adaptive responses of rootage to pollution include redistribution of its different components in favor of some of them upon the background of the general rootage decline. Roots may “avoid” the most polluted soil layers and may actively excrete exudates able to prevent the penetration of a pollutant into rootage. Pollution with oil products may stimulate soil saturation with the rootage of most coniferous and only some deciduous plants. The radioactive pollution is more hazardous for rootage growth than for the radial accretion.


Author(s):  
M. I. Dzhalalova ◽  
A. B. Biarslanov ◽  
D. B. Asgerova

The state of plant communities in areas located in the Tersko-Sulak lowland was studied by assessing phytocenotic indicators: the structure of vegetation cover, projective cover, species diversity, species abundance and elevated production, as well as automated decoding methods. There are almost no virgin soils and natural phytocenoses here; all of them have been transformed into agrocenoses (irrigated arable lands and hayfields, rice-trees and pastures). The long-term impact on pasture ecosystems of natural and anthropogenic factors leads to significant changes in the indigenous communities of this region. Phytocenoses are formed mainly by dry-steppe types of cereals with the participation of feather grass, forbs and ephemera, a semi-desert haloxerophytic shrub - Taurida wormwood. At the base of the grass stand is common coastal wormwood and Taurida wormwood - species resistant to anthropogenic influences. Anthropogenic impacts have led to a decrease in the number of species of feed-rich grain crops and a decrease in the overall productivity of pastures. Plant communities in all areas are littered with ruderal species. The seasonal dynamics of the land cover of the sites was estimated by the methods of automatic decoding of satellite images of the Landsat8 OLI series satellite for 2015, dated by the periods: spring - May 20, summer - July 23, autumn - October 20. Satellite imagery data obtained by Landsat satellite with a resolution in the multispectral image of 30 m per pixel, and in the panchromatic image - 10 m per pixel, which correspond to the requirements for satellite imagery to assess the dynamics of soil and vegetation cover. Lower resolution data, for example, NDVI MODIS, does not provide a reliable reflection of the state of soil and vegetation cover under arid conditions. In this regard, remote sensing data obtained from the Internet resource https://earthexplorer.usgs.gov/ was used.


Author(s):  
V. Korchevska ◽  
O. Voytsekhivska

It is analyzed the population dynamics, vitality and age structure of populations of individuals of 4 rare plants of Orshidaceae family – Anacamptis palustris (Jacg.) R.M. Bateman, Dactylorhiza maculate (L.) Soό, Dactulorhiza traunsteineri (Saut. Ex Reichenb.) Soό, Dactylorhiza incarnate (L). Soό in the article. The population age structure monitoring found that the most stable is the population of Anacamptis palustris species (loss of strength 20.5 %, the population is in a mature state of 2012.), the most volatile one is Dactylorhiza maculata (loss of strength 44.6 %, permanent change of age structure). The effects of natural abiotic factors (temperature, rainfall) did not significantly affect to the population structure, while the effects of anthropogenic factors led to population depression. In population of Dactulorhiza traunsteineri and Dactylorhiza maculata it is observed the prevalence of low vitality class individuals', which indicates the presence of population adaptive potential. The primary condition for the preservation of population of Orchidaceae family is the creation of optimal conditions for their growth, the reduction of the anthropogenic load and provision to the studied areas the reservation status.


2018 ◽  
Author(s):  
Martina Botter ◽  
Paolo Burlando ◽  
Simone Fatichi

Abstract. The hydrological and biogeochemical response of rivers carries information about solute sources, pathways, and transformations in the catchment. We investigate long-term water quality data of eleven Swiss catchments with the objective to discern the influence of catchment characteristics and anthropogenic activities on delivery of solutes in stream water. Magnitude, trends and seasonality of water quality samplings of different solutes are evaluated and compared across catchments. Subsequently, the empirical dependence between concentration and discharge is used to classify different solute behaviors. Although the influence of catchment geology, morphology and size is sometime visible on in-stream solute concentrations, anthropogenic impacts are much more evident. Solute variability is generally smaller than discharge variability. The majority of solutes shows dilution with increasing discharge, especially geogenic species, while sediment-related solutes (e.g. Total Phosphorous and Organic Carbon species) show higher concentrations with increasing discharge. Both natural and anthropogenic factors impact the biogeochemical response of streams and, while the majority of solutes show identifiable behaviors in individual catchments, only a minority of behaviors can be generalized across catchments that exhibit different natural, climatic and anthropogenic features.


Author(s):  
E. P. Bessolitsyna ◽  

Landscape-ecological analysis of taxonomic diversity and structure of soil invertebrates’ community in the geosystems of the Hamar-Daban Region was carried out on the main levels: local (biogeocenotic), topological (facies) and regional. The paper considers regularities of transformation of communities’ structure in landscape-zonal range under the influence of natural conditions: phytocenotic (peculiarities of vegetation), edaphical and climatic (hydrothermal regime of the soil) and anthropogenic factors. On the models groups: Сarabidae, Staphylinidae, Elateridae, Formicidae altitudinal changes of community' structure have been traced; in all landscape-high-rise complexes (in species composition and abundance of species) was revealed forest preference. The main trend of changes in taxonomic diversity of invertebrate’s communities is a decrease in the species number in the gradient of an increase of climate aridity, and strengthening of the hypothermal character and anthropogenic pressure. Peculiarities of structures invertebrate’s communities and their changes due to the climate change and anthropogenic impacts can serve as one of diagnostic criteria of soil conditions and can be used for estimation of landscapes’ transformation and monitoring.


Author(s):  
J. Y. Gasimov

Theoretical base of human effects on geomorphological environment, the evolution of anthropogenic impacts and modern situation of human activity were analyzed in the studied area. On the base of supervised and unsupervised classification of the Landsat images (1976–2017) Land use-Land cover map of the territory was compiled. The dynamic and transformation of land covers were determined with the change detection function. It was defined that the most increasing land cover in the area of transformation since 1976 to 2017 is the sown area. Due to the anthropogenic development of the study area, the largest decrease in the area of exposed (33,85%) and saline (25,43%) land cover occurred during this period. Among the listed anthropogenic factors (oil and gas production, production of building materials, grazing, settlements, etc.), it is established that irrigation erosion has a wide radius of encirclement and a high degree of influence. With the application of Geographic Information System technologies, on the base of remote sensing data the density of the irrigation network has been computed and mapped. Ecogeomorphological assessment and zoning of the territory has been carried out. According to the comparative analysis of horizontal (stream network) and anthropogenic (irrigation network) fragmentation it was determined that the estimated maximum cost of anthropogenic fragmentation in the study area is 2,5 times higher than natural horizontal fragmentation.


2019 ◽  
Author(s):  
Mert Kükrer ◽  
Meral Kence ◽  
Aykut Kence

Intense admixture of honey bee (Apis mellifera L.) populations is mostly attributed to migratory beekeeping practices and replacement of queens and colonies with non-native races or hybrids of different subspecies. These two practices are also heavily carried out in Anatolia and Thrace where 5 subspecies reside naturally.Here, we carried out an analysis of population structure of honey bees sampled from six different regions (n = 250) in order to test the genetic impacts of migratory beekeeping, queen and colony trade and conservation efficacy of isolated regions. A total of 30 microsatellite markers were used in four multiplex reactions.Direct genetic impact of migratory beekeeping was demonstrated first time based on a comparison of assignment of individuals to their geographically native populations where migratory colonies showed less fidelity. We found genetic evidence for them acting as a hybrid zone mobile in space and time, becoming vectors of otherwise local gene combinations.The effects of honey bee trade were revealed by the presence of very high introgression levels from the highly commercial Caucasian bees naturally limited to a narrow range. We also measured the direction and magnitude of this gene flow connected with bee trade.Comparison between regions that are either open to migratory beekeeping or not let us evaluate the status of isolated regions as centers of limited gene flow and showed the importance of establishing such regions.Despite signs of gene flow, our findings confirm high levels of geographically structured genetic diversity of four subspecies of honey bees in Turkey and emphasize the need to develop policies to maintain this diversity.Our overall results might potentially bear a wider interest to the community since they constitute an important attempt to quantify the effects of anthropogenic impacts on established patterns of honey bee diversity. Our measurable and justified findings on migratory beekeeping, queen and colony replacements as well as conservation implications will hopefully be of use for the decision makers and other stakeholders.


PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2773 ◽  
Author(s):  
Elena Angulo ◽  
Raphaël Boulay ◽  
Francisca Ruano ◽  
Alberto Tinaut ◽  
Xim Cerdá

In countries with high levels of urbanization, protected areas are often subject to human disturbance. In addition to dealing with fragmentation, land managers also have to confront the loss of characteristic ecosystems due to biotic homogenization, which is the increasing similarity of species assemblages among geographically separate regions. Using ants as a model system, we explored whether anthropogenic factors negatively affect biodiversity of protected areas of a regional network. We first analysed the effect of fragmentation and human activity on ant biodiversity within protected areas. Secondly, we tested whether homogenization could occur among protected areas. We sampled 79 plots in the most common habitats of 32 protected areas in southern Spain and calculated ant community richness and diversity indices, endemic richness, and Bray–Curtis similarity indices (between pairs of plots). We related these indices with patch fragmentation and human disturbance variables, taking into account environmental, spatial and landscape covariates. We used ANOSIM to test for differences between similarity indices, specifically among levels of anthropogenic disturbance. Species richness was positively correlated with the distance from the border of the protected areas and the number of endemic species was negatively correlated with the degree of fragmentation. Ant communities were similar within each protected area but differed across regions. Human disturbance was not correlated with community similarity among sampling points. Our approach suggests how the ability of European protected areas to sustain biodiversity is limited because they remain susceptible to anthropogenic impacts. Although ant communities maintained their biological distinctiveness, we reveal how fragmentation within protected areas is important for community richness and endemism maintenance.


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