Evros Region Research Articles

A retrospective of deaths related to migration along the southeasternmost land borders of Europe: an update encompassing the years 2015-22.

This study presents an update of forensic accounting of the numbers and demographics of migrants found deceased in the Evros region of Greece in the years from 2015-22. Compared to data from 2000-14, this update reflects the mounting number of border-related deaths in the region, as well as the changing demographic trends associated with the migrants who perish crossing the Greek-Turkish border. Specifically, the paper documents a broadening of locations from which migrants originate, the increasing diversity of migrant death locations, and a shift in the leading causes of death. It contains important forensic accounting of the unique humanitarian crisis occurring along the Greek-Turkish land border while also providing an additional context for the global migration crisis. The data presented here offer insights into other forensic stakeholders impacted by the global migration crisis, with respect to what factors contribute to and detract from identification rates, and can help stakeholders make informed policy decisions.

Employing Copernicus Land Service and Sentinel-2 Satellite Mission Data to Assess the Spatial Dynamics and Distribution of the Extreme Forest Fires of 2023 in Greece

In 2023, Greece faced its worst wildfire season, with nine major fires causing unprecedented environmental damage of 1470.31 km2. This article uses Copernicus Land Monitoring Service and Sentinel-2 data, employing advanced remote sensing and GIS techniques to analyze spatial dynamics, map burn severity, assess fire extent, and highlight pre-fire tree density and land cover. The study focuses on the catastrophic fire in the Evros region and the damage to the National Forest Park of Dadia–Lefkimmi–Soufli. It also analyzes significant fires in Rhodes, Attica, Thessaly, Evia, Corfu, and Magnesia, emphasizing the compounded challenges posed by terrain, climate, and human factors in those areas. Additionally, the climate data for each affected area were compared with the weather conditions prevailing at the time of the fires. Copernicus Land Cover and Tree Density data are integrated to aid future management, assessment, and restoration. The analysis of maps and fire statistics underscores a notable pattern: areas with higher pre-fire tree density experienced correspondingly higher burn severity. This research underscores the crucial role of such data in assessing wildfire impact. In addition, compared with Copernicus Emergency Management Service, the burned area maps validate the accuracy and reliability of the utilized satellite data. The total burned area was assessed with a high accuracy rate of 96.28%.

Development of Path and Trail Network and Forest Infrastructure for Pedestrians, Cyclists and Persons with Disabilities in the Evros Region, Greece

Development of Path and Trail Network and Forest Infrastructure for Pedestrians, Cyclists and Persons with Disabilities in the Evros Region, Greece

Ágnostoi: Greece and the forensic bordering of Fortress Europe

This article explores migrant disappearances and border deaths at the Greek borderlands through the notion of forensic bordering. Based on fieldwork in the Evros region, Athens and its surroundings, and on the island of Lesvos, I argue that disappearance and non-identification in the event of death are effectively border violence by other means. Three forms of symbolic and political post-mortem border violence are then explicated: the act of disappearance, the act of non-identification, and the act of denying proper mourning. Crucially, this article unpacks the underlining logic that, if migrants from Africa, Asia, and the Middle East are not supposed to cross the border in the first place, their existence and, ultimately, their equal humanity can be similarly denied in death. If the forensic sciences are generally perceived positively as means to provide answers, closure, accountability, and truth, forensic bordering seeks to do the exact opposite, rejecting accountability and employing silence as a deterrence.

Analyzing the impact of reforestation on forest fires and the economic outcome in an area in northern Greece.

The reforestation that occurred in the South Evros region in northern Greece was documented and studied. Our hypothesis is that the economic footprint of reforestation with conifers is negative, and the presence of conifers influences the size of the burned area in forest fires. The reforested area, the species, the amount spent on reforestation and operations to enhance the quality of the forest products, as well as the amount of money spent to protect such areas and prevent fires, were documented. Additionally, the extraction of forest products and the sales income were examined. The numbers of fires, as well as the total burned area, were documented for the fires that occurred in the studied forests between 1980 and 2016. Then, the fire episodes that had burned areas of more than 100 hectares, were examined. In order to compare spending across time, the Consumer Price Index (CPI) was utilized to convert all gathered expense numbers to December 2016 values. The cost of reforestation is significantly greater than the income it produces, and there is a correlation between the size of the burned forest area and the presence of conifers in the burned area. Based on the results of the present study, the use of conifers in reforestations must be avoided in all cases in the studied area, as well as in similar areas regarding their characteristics and ecology

Dance and Performance: Performing the Wedding Ritual Outside of Its Context

Marriage is a statute that seeks the reproductive union of the two genders, and the customs that accompany it are performed continuously even to this day. Nevertheless, this is not the case in the community of Pentalofos in Evros prefecture in Greece, where the wedding customs have stopped being celebrated, mainly due to the lack of new people in the community and therefore the lack of weddings. These customs are now experienced in a different way by the members of the cultural association of the community, who represent them outside of their context, in a different time and place. Thus, the aim of this paper is to study the wedding customs in the community of Pantalofos in the Evros region in Greece, treating their representation as a planned performance. The collection of research data was carried out with the ethnographic method, as this applied to the study of dance. For presentation and data analysis Geert’s model of ‘thick description’ was adopted, as in ethnographic method the analysis and interpretation of the data is done simultaneously. Finally, for the interpretation of the research data, the performance theory was used, according to which society can be seen in the light of a dramaturgical perspective, i.e. as a theater, where the performers unconsciously play multiple roles. From the analysis of the data it was found that the revival of marriage customs was a theatrical performance, which included an organizer, two coordinators and many actors. The women of the cultural association have functioned as actors with specific roles and the rituals which they performed was lost a degree of their character, but women experienced the performance of marriage rituals in a different way. For them, the wedding customs were a different experience, in a different reality.

Prevalence of Type 2 Diabetes and Cardiometabolic Risk Parameters in Evros

Introduction: The aim of this study was to estimate the prevalence of Type 2 Diabetes and related metabolic disorders in the Evros region. Material-Methods: A random sample of 541 people was studied using the Finnish Type 2 Diabetes Risk Score, and measurement of weight, height, waist and hip circumference, blood pressure, as well as Fasting Glucose and Postprandial Glucose with a reflectometer. The participants with a score of 15-20, score ≥20, FG ≥100 mg/dl and / or PG 140 mg/dl (n = 206) were subjected to a oral glucose tolerance test, according to WHO. Lipid profile, metabolic syndrome and cardiovascular risk were also assessed. Results: Prevalence of DM T2 in the study population was: 29.6%, and that of prediabetes was 10.9%. Obese (Body Mass Index ≥ 30 kg/m2) were: 52.5%, overweight (BMI 25-30kg/m2) were 33.2% and normal/low weight (BMI <25 kg/m2) were 14.1% of the population. Central obesity with a waist circumference of ≥ 102cm had 58,6% of men and ≥ 88cm 86,8% of women. Hypertension was 66.9% of the sample and 58.8% were on antihypertensive treatment. In 206 subjects, CHOL 200-239 mg/dl had 32.5% and CHOL≥ 240 mg/ dl 13.6%. 10.2% of women had HDL – CHOL <45 and <35:3,4 % of men. 5,9 % of subjects had LDL – CHOL≥ 160 mg/dl. 18% of subjects had TG: 200 – 499 mg/dl and TG ≥ 500 mg/dl:1.5%. High index Apo-B / Apo-A1 had 19.4% and Lp (a) 33% of individuals. 92.2% of these people had metabolic syndrome. Conclusions: The upward trend of DM T2 and cardiometabolic risk parameters raises the need for targeted prevention and treatment policies.

Prevalence of anti-SARS-CoV-2 IgG antibodies in a group of patients, a control group, and healthcare workers of Thrace area in Greece, by the use of two distinct methods.

The aim of this study was to assess the clinical performance of different automated immunoassays available in Europe to detect anti-SARS-CoV-2 antibodies; an ELISA assay and a CLIA. The second goal was to estimate the seroprevalence of SARS-CoV-2 antibodies among healthcare workers in Evros area during the first pandemic wave of COVID-19. The study included serum samples from 101 patients with confirmed COVID-19 by RT-PCR and 208 negative patients. Furthermore, it included 1036 healthcare workers (HWs) of the Evros Region, Northern Greece. The measurement of anti-SARS-CoV-2 antibodies was performed using the Abbott SARS-CoV-2 IgG and anti-SARS-CoV-2 ELISA IgG assay (Epitope Diagnostics, USA). Of 101 confirmed COVID-19 patients, 82 were hospitalized and 19 were outpatients. Hospitalized patients had higher IgG levels in comparison to outpatients (6.46±2.2 vs. 3.52±1.52, p<0.001). Of 208 non-COVID-19 patients only 1 was positive in both ELISA and CLIA assay. SARS-CoV-2-IgG antibodies were detected in 6 HWs out of 1036 (0.58%) with mean S/CO-value of anti-SARS-CoV-2 IgG 3.12±1.3 (confidence interval 0.95), which was lower than in COVID-19 patients (3.12 vs. 5.9; p=0.016). The clinical evaluation of two immunoassays showed remarkably high true positivity rates in the confirmed COVID-19 patients. Sensitivities obtained with CLIA and ELISA methods were 99.02% vs. 97.09% and specificities 99.52% vs 99.05% respectively. We found an acceptable accordance between CLIA and ELISA assays in the confirmed COVID-19 patients. In all subjects included in this study in the past medical history, the information that was obtained included details about the presence of autoimmune diseases.

COMPARATIVE STUDY OF THE CESIUM UPTAKE ABILITY BETWEEN HEU-TYPE (CLINOPTILOLITE-HEULANDITE) ZEOLITIC TUFF AND PURE HEULANDITE

Specific continuous layers of zeolitic tuff in Ntrista stream location of Petrota area of Evros region (NA11) and pure natural crystals of heulandite (HEU1) from the collection of the Department of Mineralogy-Petrology-Economic Geology, School of Geology, Aristotle University of Thessaloniki, have been investigated. The X-Ray Diffraction analyses showed that the sample NA11 consists of 86 wt% HEU-type zeolite, 4 wt% micas+ clay-minerals, 4 wt% quartz, 2 wt% christobalite and 4 wt% feldspars, while the sample HEU1 is pure heulandite crystal. The mineral-chemistry was determined by SEM-EDS microanalyses. The zeolite of the NA11 sample is Ca-rich clinoptilolite and its chemical formulae is Ca1.8K1.0Mg0.7Na0.5Al6.4 Si29.5O72·21H2O, while the zeolite of the sample HEU1 is heulandite and its chemical formulae is Ca3.6Na1.0Κ0.2Sr0.2Ba0.1Al8.1Si27.6O72·21H2O. The uptake ability of the samples was measured by the AMAS method (Ammonium Acetate Saturation). The two examined materials show high uptake ability. The measured value for the zeolitic tuff NA11 is 231 meq/100g, while for the heulandite crystal (HEU1) is 296 meq/100g. For the determination of the cesium sorption a CsNO3 solution (concentration 500 mg/L), labelled with small activity of 137Cs, and pH 2-12 was used. The sorption of the cesium by the two materials, was determined by measuring the gamma radiation emitted by the 137Cs tracer. The zeolitic tuff presents higher uptake ability of radioactive cesium than the pure heulandite crystal, whereas the sorption of radioactive cesium is not significantly affected by the pH values of the initial solutions in the range pH 2-12.The clinoptilolitic zeolitic tuff NA11 is suitable material for various environmental, agricultural and industrial applications.

Mineralogical and geochemical study of the Kirki mining wastes, Evros region, Greece -determination of the environmental impact by toxic and heavy metals

Mining activity at the Kirki ore deposit has occurred over short periods, from 1974 to 1980 and 1990 to 1997. The mining wastes at the cracked tailing ponds and at other on-site locations of the plant, together with the remains of the mining concentrates, the piles of the unprocessed ore and the large number of destroyed and weathered barrels of chemical reagents, including sodium cyanide, are a great risk to public health. All these wastes are exposed to rain-water and constitute a permanent source of toxic metals and other materials, which are transported by the adjacent small river of Erini, contaminating the hydrologie system of the whole area including the city of Alexandroupolis. For example, the concentrations of toxic metals such as Pb, Cu, Zn, As and Cd in the clay fraction of the river sediments is 2100, 300, 50, 100 and 660 times, respectively, above the natural background concentrations.

Multi-Criteria Decision Analysis for an Abandoned Quarry in the Evros Region (NE Greece)

The purpose of this study is to identify the impacts of abandoned quarries and to examine scenarios for their restoration. Two quarries were selected as case studies, which are located in the Evros Region (NE Greece). Initially, the current state of the abandoned quarries was recorded and evaluated, including slopes, landscape, land use, as well as cultural elements. Four alterative scenarios for the exploitation of each quarry were proposed, taking into account the specifics of each site. Financial, environmental, and socioeconomic criteria were then used to evaluate these scenarios. The PROMETHEE method is a multi-criteria decision analysis approach and was applied to rank the alterative scenarios. The results show that the “do nothing” scenario is the worst solution for both quarries. In the quarry at Αsvestades, the restoration of the area by returning the land to pre-quarry use with the shaping of the slopes and planting is considered the best solution. On the other hand, in the quarry Mikro Derio two scenarios are proposed; one provides restoring the site to its pre-quarry land use and the other is the restoration of the quarry combined with the creation of a wildlife observatory and places for alternative forms of tourism.

Effects of Grazing Intensity on the Regeneration of Woody Species in an Oak Woodland

In the Mediterranean regions, oak forests are commonly used for livestock grazing. However, it is well documented that livestock grazing is an essential factor that can affect the success of natural regeneration of oak and other woody species of the understorey. Consequently, it influences the composition and structure of oak woodlands. The main objective of the present study was to examine the effects of grazing intensity on characteristics of oak seedlings establishment (density, height, number of leaves) and on the diversity of the woody species seedlings. The research was conducted in open canopy Quercus frainetto woodland, grazed by a herd of 500 goats for eight months per year, located in Evros region, north-eastern Greece. The distance from a goat corral was used to represent relative grazing intensity. In May 2016, vegetation measurements were made along transects placed at 50, 150, 300, 600 and 1200 m from the goat corral, running perpendicular to four replicates. According to the results, increased grazing intensity significantly reduced the density, the plant height and the number of leaves of Quercus frainetto seedlings. Grazing intensity did not affect significantly diversity, evenness and dominance indices for the woody species seedlings. However, heavy grazing reduced species richness and the Chao1 index.

Complete Genome Sequence of the Lumpy Skin Disease Virus Isolated from the First Reported Case in Greece in 2015.

ABSTRACTLumpy skin disease virus (LSDV) causes an economically important disease in cattle. Here, we report the complete genome sequence of the first LSDV isolate identified in mainland Europe. LSDV isolate Evros/GR/15 was isolated from the first cases reported on 18 August 2015 in the Evros region, Greece.

Bayesian epidemic models for spatially aggregated count data.

Epidemic data often possess certain characteristics, such as the presence of many zeros, the spatial nature of the disease spread mechanism, environmental noise, serial correlation and dependence on time-varying factors. This paper addresses these issues via suitable Bayesian modelling. In doing so, we utilize a general class of stochastic regression models appropriate for spatio-temporal count data with an excess number of zeros. The developed regression framework does incorporate serial correlation and time-varying covariates through an Ornstein-Uhlenbeck process formulation. In addition, we explore the effect of different priors, including default options and variations of mixtures of g-priors. The effect of different distance kernels for the epidemic model component is investigated. We proceed by developing branching process-based methods for testing scenarios for disease control, thus linking traditional epidemiological models with stochastic epidemic processes, useful in policy-focused decision making. The approach is illustrated with an application to a sheep pox dataset from the Evros region, Greece. Copyright © 2017 John Wiley & Sons, Ltd.

Assessment of flood hazard areas at a regional scale using an index-based approach and Analytical Hierarchy Process: Application in Rhodope–Evros region, Greece

The present study introduces a multi-criteria index to assess flood hazard areas in a regional scale. Accordingly, a Flood Hazard Index (FHI) has been defined and a spatial analysis in a GIS environment has been applied for the estimation of its value.The developed methodology processes information of seven parameters namely flow accumulation, distance from the drainage network, elevation, land use, rainfall intensity and geology. The initials of these criteria gave the name to the developed method: “FIGUSED”. The relative importance of each parameter for the occurrence and severity of flood has been connected to weight values. These values are calculated following an “Analytical Hierarchy Process”, a method originally developed for the solution of Operational Research problems. According to their weight values, information of the different parameters is superimposed, resulting to flood hazard mapping. The accuracy of the method has been supported by a sensitivity analysis that examines a range for the weights' values and corresponding to alternative scenarios.The presented methodology has been applied to an area in north-eastern Greece, where recurring flood events have appeared. Initially FIGUSED method resulted to a Flood Hazard Index (FHI) and a corresponding flood map. A sensitivity analysis on the parameters' values revealed some interesting information on the relative importance of each criterion, presented and commented in the Discussion section. Moreover, the sensitivity analysis concluded to a revised index FHIS (methodology named FIGUSED-S) and flood mapping, supporting the robustness of FIGUSED methodology. A comparison of the outcome with records of historical flood events confirmed that the proposed methodology provides valid results.

Caries prevalence and manganese and iron levels of drinking water in school children living in a rural/semi-urban region of North-Eastern Greece.

The aim of this study was to correlate different combinations of manganese (Mn) and iron (Fe) concentration in drinking water with prevalence of dental caries in both primary and permanent dentition, among school children with similar socio-demographic characteristics. Evros region, in North-Eastern Greece, was divided into four areas, according to combinations of levels of Mn and Fe in drinking water (High Mn-high Fe; High Mn-low Fe; Low Mn-high Fe; Low Mn-low Fe). Children of similar socio-economic background, attending either first or sixth grade (primary or permanent dentition, respectively) of elementary schools, were clinically assessed for caries by three dentists. Caries was defined by the use of dmft/DMFT index. A questionnaire answered by the parents was also analysed. 573 children were included. Caries prevalence was high in both age groups (64.2 % with mean dmft 3.3 ± 3.6 in primary and 60.7 % with mean DMFT 2.3 ± 2.5 in permanent dentition, respectively). Residence in a high Mn-low Fe area was associated with a significant OR for caries in both age groups [OR (95 % CIs) for primary and permanent dentition was, respectively, 3.75 (1.68-8.37), p = 0.001 and 3.09 (1.48-6.44), p = 0.003], independently of factors like sugar consumption or brushing frequency. Prevalence of caries was high in general, and was associated with the combination of high Mn/low Fe levels in drinking water, independently of various socio-demographic factors.

Soil Properties and Plant Community Changes along a Goat Grazing Intensity Gradient in an Open Canopy Oak Forest

Understanding how the management practices of silvopastoral systems affect the long-term sustainability of oak ecosystems and what their influence is on nutrient cycling and plant community, is of great interest. The aim of this study was to examine the effects of relative grazing intensity on soil properties and on vegetation characteristics in an open canopy oak forest dominated by Quercus frainetto. The research was conducted in the area of Pentalofos, which is located in Evros region, north-eastern Greece and is grazed by goats. The distance from a goat corral was used to represent relative grazing intensity. In June 2011, soil and vegetation samples were collected along transects placed at 50, 150, 300, 600 and 1200 m from the goat corral, running perpendicular to three replicates. Soil measurements included pH, phosphorous (P) and nitrogen (N) concentrations while vegetation measurements included plant cover, species composition and diversity. Plant cover was not significantly different among grazing intensities. Species diversity, especially of the woody vegetation layer, was significantly higher in the light grazing intensity in comparison to both the heavy and the very light grazing. Heavy grazing reduced soil organic matter while it increased total nitrogen. Grazing intensity did not affect available P and soil pH. Light to moderate goat grazing could ameliorate floristic diversity and increase sustainability of oak forests in the Mediterranean region.

Assessment of public health issues of migrants at the Greek-Turkish border, April 2011

A joint mission to assess the public health situation of migrants in Greek detention centres was undertaken in April 2011 by the European Centre for Disease Prevention and Control (ECDC) and the World Health Organization (WHO) Regional Office for Europe. The assessment visit follows the increased migration to the Evros prefecture, Eastern Macedonia and Thrace region, at the Greek-Turkish border where large numbers of migrants are entering Greece via the Evros River, a natural border. Migrants are housed in local detention centres. The main problem in detention centres are the substandard hygiene conditions, especially overcrowding and lack of personal hygiene facilities, lack of basic supplies and lack of access to fresh air and physical exercise. As the migration route via the Evros region is increasingly used since 2009, and due to the unstable political situation in North Africa and the Middle East, an increased influx of migrants was to be expected with the falling water levels of the Evros River in summer, resulting in further deterioration of the already critical situation in the Thrace region’s detention centres.

Analysis of natural Fagus sylvatica L. s.l. regeneration in low elevation stands located in the central part of the Evros region in northeastern Greece: Is sprout origin regeneration significant for species maintenance?

The aim of this study was (a) to analyse natural Fagus sylvatica L. s.l. regeneration in low elevation stands located in the central part of Evros region in northeastern Greece in relation to factors such as site productivity, type of silvicultural treatment and regeneration origin and (b) to determine whether or not sprout origin regeneration is significant for the maintenance of beech stands. One hundred and twenty plots (3 m × 3 m) were established in areas where thinnings and regeneration fellings had taken place, and in two site productivity regimes. In each plot, the number of beech seedlings, saplings, and stump or root sprouts (regeneration plants) with a height of up to 3 m was counted, and their height measured. Our findings indicate that even though reproduction by seed is the predominant regeneration mechanism in our stands, in the medium productivity sites sprouts represent a significant percentage of the total number of plants. Moreover, sprouting functions as a mechanism of maintenance of beech stands in medium productivity sites. During the regeneration fellings practised in this area, it is advisable to cut the seedlings and saplings of the advanced regeneration in order to supplement the seed-derived plants with seedling sprouts.

Impact of intensive agricultural practices on drinking water quality in the EVROS Region (NE GREECE) by GIS analysis

Chemical fertilizers are used extensively in modern agriculture, in order to improve yield and productivity of agricultural products. However, nutrient leaching from agricultural soil into groundwater resources poses a major environmental and public health concern. The Evros region is one of the largest agricultural areas in Northern Greece, extending over 1.5 million acres of cultivated land. Many of its drinking water resources are of groundwater origin and lie within agricultural areas. In order to assess the impact of agricultural fertilizers on drinking water quality in this region, tap-water samples from 64 different locations were collected and analyzed for the presence of nitrates (NO(3)(-)), nitrites (NO(2)(-)), ammonium (NH(4)(+)), sulfate (SO(4)(-2)) and phosphate (PO(4)(-3)). These chemicals were selected based on the information that ammonium nitrate, ammonium sulfate and inorganic phosphate were the primary fertilizers used in local crop production. NO(3)(-), SO(4)(-2) and PO(4)(-3) levels exceeding accepted values were recorded in 6.25, 4.70 and 9.38% of all sampling points, respectively. NO(2)(-) and NH(4)(+) concentrations, on the other hand, were inside the permitted range. The data generated were introduced into a geographic information system (GIS) program for computer analysis and projection maps representing afflicted areas were created. Our results indicate a profound geographic correlation in the surface distribution of primary contaminants in areas of intensified agricultural production. Thus, drinking water pollution in these areas can be attributed to excessive fertilizer use from agricultural sources.