Historic and recent occurrences of Kievan nettle (Urtica kioviensis Rogow.) in Hungary

This paper presents occurrence data of Urtica kioviensis Rogow. in Hungary from the 20th century till today, based on a survey of six Hungarian public herbaria and the literature. Altogether 84 herbarium sheets from 9 counties, 83 literature records mentioned from 12 counties, and 57 flora mapping data were encountered. Based on these, we updated the distribution map of the species in Hungary. We found that the typical habitats of U. kioviensis in Hungary include marginal zones of bog forests, reeds, and old small watercourses. We report two newly discovered locations of the species in the Hanság area. Near Fehértó, in a peat-forming reed bordering a lake, approximately 150 plants were found, while in the vicinity of Dör, in a former open pit sand mine, approximately 300 plants were observed. The habitat at Dör is secondary, the current vegetation must be the result of progressive succession processes that started after the abandonment of sand mining. The integrity of Hungarian habitats has been threatened in recent decades by increasingly frequent climatic anomalies (mainly water shortages due to the lack of precipitation for long periods) and anthropogenic factors (fragmentation of biotopes, organic/inorganic substances washing into groundwater), which may cause a decrease in the number of plants. As a significant part of the distribution area of the species is located in Hungary, the protection of its populations and habitats is also of key importance.

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Dynamics of succession processes on sulphide-containing mine dumps as a result of their optimization

Plant Biology and Horticulture: theory, innovation ◽

10.36305/2019-1-150-13-22 ◽

2019 ◽

pp. 13-22

Author(s):

Yu. V. Plugatar ◽

V. V. Korzhenevsky ◽

N. E. Opanasenko ◽

M. L. Novitsky

Keyword(s):

Primary Succession ◽

Soil Formation ◽

Formation Processes ◽

Biotic Factors ◽

Mine Dumps ◽

Species Composition Of Vegetation ◽

Progressive Succession ◽

Succession Processes ◽

Mine Dump ◽

Over Time

When optimizing the relief at the top of the trapezoidal sulfide-containing mine dump, young soil (embryozem) was formed as a result of abio- and biotic factors. In parallel with the formation of embryozems, primary succession processes are developing. As a result, the species composition of vegetation, the staging and intensity of progressive succession were studied depending on the mesorelief of dumps in accordance with the weathering and soil formation processes developing over time. The properties and indicators of young soil in depressions and sulfide rock (control) 25 years after the completion of the dumping of the rock pile were studied. As a result of optimization at the top of the dump, the processes of formation of embryozems in the depressions are significantly accelerated.

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Natural and anthropogenic conditions of water level fluctuations in lakes – Lake Powidzkie case study (Central-Western Poland)

Journal of Water and Land Development ◽

10.2478/jwld-2019-0002 ◽

2019 ◽

Vol 40 (1) ◽

pp. 13-25 ◽

Cited By ~ 2

Author(s):

Bogumił M. Nowak ◽

Mariusz Ptak

Keyword(s):

Water Level ◽

Water Levels ◽

Water Level Fluctuations ◽

Anthropogenic Factors ◽

Water Shortages ◽

Natural Factors ◽

Precipitation Increase ◽

Water Outflow

Abstract The article presents the analysis of water level fluctuations in Lake Powidzkie in the years 1961–2015. The study shows a considerable decrease in mean water levels in the aforementioned multiannual period, averaging 9 cmꞏdecade−1. Such a situation is caused by natural as well as anthropogenic factors, co-determining water relations in the study area. The natural factors include the amount and distribution of precipitation, increase in air temperature and evaporation size, unfavourable relations between the lake and catchment or hydrogeological conditions. Anthropogenic factors particularly include long-term transformations of the natural environment in the region, currently associated with meliorations accompanying the nearby opencast brown coal mines and exploitation of groundwaters for municipal purposes. Water shortages occurring during dry periods were shown not to be compensated in the study area in humid years. This is particularly related to the regional lowering of the aquifer remaining in close relations with Lake Powidzkie. Counteracting the unfavourable hydrological situation is done through hydrotechnical infrastructure which partially limits water outflow from the lake through damming.

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Seed Productivity of Epipactis atrorubens (Hoffm.) Besser (Orchidaceae, Liliopsida) on the Northern Border of its Distribution Area

Povolzhskiy Journal of Ecology ◽

10.35885/1684-7318-2020-2-191-208 ◽

2020 ◽

pp. 191-208

Author(s):

I. A. Kirillova ◽

D. V. Kirillov

Keyword(s):

Komi Republic ◽

Limiting Factors ◽

Distribution Area ◽

Anthropogenic Factors ◽

Limiting Factor ◽

Ural Mountains ◽

Seed Productivity ◽

Northeast Russia ◽

Reproductive Characteristics ◽

Northern Border

The Orchids due to their biological features, high decorative properties and poor resistance against anthropogenic factors are one of the most vulnerable components in vegetation of the world. Their conservation cannot be efficient without the knowledge on their reproductive biology. These data are especially important for species on the borders of their distribution area with additional reproduction limiting factors. Our study object is a rare orchid species Epipactis atrorubens (Hoffm.) Besser. During field works on the territory of the Komi Republic (northeast Russia), we studied 50 populations of E. atrorubens. Reproductive characteristics (fruit set, seed productivity and seed morphometry) were studied in 19 of them. We established that the main limiting factor in the North is a short vegetation period. Frosts damage generative shoots and do not allow seeds to ripe. The capsule of E. atrorubens on the northern distribution border contains fewer seeds than in the central part of areal. Also less is the indicator of real seed productivity. Within the Komi Republic on sample of two sites (the Timan Range and the Ural Mountains), we also see the decrease in all reproductive characteristics from south to north: the number and size of flowers, the number and quality of seeds decrease, their shape changes. However deterioration in seed productivity is compensated by an increase in seed volume. The populations of less than 50 shoots, in which juvenile plants are not marked, are in critical condition.

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Breaking the silence: how shedding light on the bone-skipper fly Thyreophora cynophila (Diptera: Piophilidae) demonstrated it still has a large distribution area in the Pyrenees mountains, France

Biodiversity Data Journal ◽

10.3897/bdj.8.e54868 ◽

2020 ◽

Vol 8 ◽

Author(s):

Frédéric Azémar ◽

Frédéric Cazaban ◽

Laurent Pelozuelo

Keyword(s):

Saint Paul ◽

Distribution Area ◽

Southern France ◽

Extent Of Occurrence ◽

Occurrence Data ◽

Large Distribution

Thyreophora cynophila (Panzer, 1798) is an iconic species of the European entomofauna. This winter-flying necrophagous fly was considered long extinct in Europe, before being discovered in Spain in 2010 and re-discovered in France in 2020, with a unique locality in Saint-Paul-de-Jarrat (Ariège, southern France). After bringing this species to the attention of people that are active in nature during the winter, including hunters, skilled naturalists, nature lovers and professional naturalists, we gathered seven new occurrence data for this species at six locations on the French flanks of the Pyrenees mountains. Those data considerably extend the known distribution of the species in Europe and allows mapping the first approximate extent of occurrence for this species in France.

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Izolované populace praménky Bythinella austriaca (Frauenfeld, 1857) (Gastropoda: Hydrobiidae) v okolí Prahy [Isolated populations of Bythinella austriaca (Frauenfeld, 1857) (Gastropoda: Hydrobiidae) in Prague surroundings (Czech Republic)]

Malacologica Bohemoslovaca ◽

10.5817/mab2010-9-5 ◽

2010 ◽

Vol 9 ◽

pp. 5-10

Author(s):

Luboš Beran

Keyword(s):

Czech Republic ◽

Distribution Area ◽

Actual Situation ◽

Isolated Populations ◽

The Czech Republic ◽

Occurrence Data ◽

North Western

This paper completes the knowledge of an occurrence of Bythinella austriaca (Frauenfeld, 1857) (Gastropoda: Hydrobiidae) in surroundings of Prague – capital of the Czech Republic. However, this species is not rare in the eastern part of the Czech Republic, sites on north-western otskirts of Prague are isolated far from the main distribution area. Altogether, 63 sites potentially suitable for B. austriaca were investigated in this area, and occurrence of this species was conﬁrmed in 11 of them. B. austriaca was found in springs, rivulets and small brooks, more numerous populations were found in springs. Historical occurrence data in this area were compared with results of research done in 2003, 2006 and 2010. Actual situation of this species in Prague surroundings is problematic and survival of some populations is not guaranteed.

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Various Natural and Anthropogenic Factors Responsible for Water Quality Degradation: A Review

Water ◽

10.3390/w13192660 ◽

2021 ◽

Vol 13 (19) ◽

pp. 2660

Author(s):

Naseem Akhtar ◽

Muhammad Izzuddin Syakir Ishak ◽

Showkat Ahmad Bhawani ◽

Khalid Umar

Keyword(s):

Water Quality ◽

Land Use ◽

Water Resources ◽

Anthropogenic Activities ◽

Industrial Applications ◽

Hyporheic Exchange ◽

Anthropogenic Factors ◽

Soil Matrix ◽

Natural Processes ◽

Inorganic Substances

Recognition of sustainability issues around water resource consumption is gaining traction under global warming and land utilization complexities. These concerns increase the challenge of gaining an appropriate comprehension of the anthropogenic activities and natural processes, as well as how they influence the quality of surface water and groundwater systems. The characteristics of water resources cause difficulties in the comprehensive assessment regarding the source types, pathways, and pollutants behaviors. As the behavior and prediction of widely known contaminants in the water resources remain challenging, some new issues have developed regarding heavy metal pollutants. The main aim of this review is to focus on certain essential pollutants’ discharge from anthropogenic activities categorized based on land-use sectors such as industrial applications (solid/liquid wastes, chemical compounds, mining activities, spills, and leaks), urban development (municipal wastes, land use practices, and others), and agricultural practices (pesticides and fertilizers). Further, important pollutants released from natural processes classified based on climate change, natural disasters, geological factors, soil/matrix, and hyporheic exchange in the aquatic environment, are also discussed. Moreover, this study addresses the major inorganic substances (nitrogen, fluoride, and heavy metals concentrations). This study also emphasizes the necessity of transdisciplinary research and cross-border communication to achieve sustainable water quality using sound science, adaptable legislation, and management systems.

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Can data from native mosquitoes support determining invasive species habitats? Modelling the climatic niche of Aedes japonicus japonicus (Diptera, Culicidae) in Germany

Parasitology Research ◽

10.1007/s00436-019-06513-5 ◽

2019 ◽

Vol 119 (1) ◽

pp. 31-42

Author(s):

Antje Kerkow ◽

Ralf Wieland ◽

Linus Früh ◽

Franz Hölker ◽

Jonathan M. Jeschke ◽

...

Keyword(s):

Invasive Species ◽

Mosquito Species ◽

Distribution Area ◽

Support Vector ◽

Aedes Japonicus ◽

Climate Conditions ◽

Invasive Mosquito Species ◽

Aedes Japonicus Japonicus ◽

Occurrence Data ◽

Invasive Mosquito

AbstractInvasive mosquito species and the pathogens they transmit represent a serious health risk to both humans and animals. Thus, predictions on their potential geographic distribution are urgently needed. In the case of a recently invaded region, only a small number of occurrence data is typically available for analysis, and absence data are not reliable. To overcome this problem, we have tested whether it is possible to determine the climatic ecological niche of an invasive mosquito species by using both the occurrence data of other, native species and machine learning. The approach is based on a support vector machine and in this scenario applied to the Asian bush mosquito (Aedes japonicus japonicus) in Germany. Presence data for this species (recorded in the Germany since 2008) as well as for three native mosquito species were used to model the potential distribution of the invasive species. We trained the model with data collected from 2011 to 2014 and compared our predicted occurrence probabilities for 2015 with observations found in the field throughout 2015 to evaluate our approach. The prediction map showed a high degree of concordance with the field data. We applied the model to medium climate conditions at an early stage of the invasion (2011–2015), and developed an explanation for declining population densities in an area in northern Germany. In addition to the already known distribution areas, our model also indicates a possible spread to Saarland, southwestern Rhineland-Palatinate and in 2015 to southern Bavaria, where the species is now being increasingly detected. However, there is also evidence that the possible distribution area under the mean climate conditions was underestimated.

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ANALISIS MUTU AIR AKIBAT AKTIVITAS PENAMBANG PASIR DENGAN METODE STORET DI SUNGAI SP PADANG OKI

Jurnal Akuakultur Rawa Indonesia ◽

10.36706/jari.v9i1.14285 ◽

2021 ◽

Vol 9 (1) ◽

pp. 22-29

Author(s):

Yosieguspa Yosieguspa ◽

Ria Fahleny ◽

Yuliani Yuliani

Keyword(s):

Water Quality ◽

River Water ◽

Water Discharge ◽

Open Pit ◽

Quality Data ◽

Open Pit Mining ◽

Sand Mining ◽

Water Quality Data ◽

Washing Process

Sand mining in the village of Sp Padang is carried out in an open pit mining model through several processes, for example the washing process which is carried out to separate sand from other components.When the sludge in the form of mud and fine sand enters the river, this part causes the quality of river water around the sand mining location to decline. The purpose of this research was to determine the condition of water quality due to sand mining in the river Sp.Padang.The type of data collected is primary data. The research was conducted at 3 stations on the river Sp.Padang.The physico-chemical parameters of river water are used, namely: turbidity, temperature, pH, TSS, DO, BOD, COD, water discharge and current velocity. The data obtained from the laboratory were then analyzed, then comparisons were made with the Storet method.Sampling for water quality replaces the surrounding area with direct measurements and measurements made in the laboratory.The use of the Storet method refers to PP No. 82 of 2001. The principle of Storet is to integrate river water quality data with river water standards and then adjust it according to its use, by classifying water quality into four classes. The results of the data analysis of the quality of river water in Sp.Padang as a result of the sand mining activities are categorized as good class B (lightly polluted) with a score of -6. Sand mining activity affects the water quality of the Sirah River in Padang Island, OKI Regency.Key words : OKI, sand miners, storet method, water quality

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