scholarly journals Recent records of hypogeous fungi in Greece

2013 ◽  
Vol 43 (2) ◽  
pp. 139-142 ◽  
Author(s):  
Stephanos Diamandis ◽  
Charikleia Perlerou
Keyword(s):  
Corylus Avellana ◽  
Natural Ecosystems ◽  
Quercus Pubescens ◽  
Carpinus Betulus ◽  
Hypogeous Fungi ◽  
Historical Information ◽  
Truffle Cultivation ◽  
Poplar Plantations

Uncertainty among Greek farmers who are in search of new and profitable crops has increased interest in truffle cultivation. Recent research has come up with 23 taxa of hypogeous fungi new for Greece including gastronomically valuable species. Natural ecosystems of <em>Quercus pubescens, Q. frainetto, Q. ilex</em> and <em>Q. coccifera</em> seem to be rich in hypogeous species. Ecosystems with <em>Corylus avellana, Carpinus betulus</em>, Mediterranean pines and even poplar plantations were found to also host hypogeous fungi. These records, supported by historical information about the existence of truffles in Greece, seem to be encouraging hints for systematic truffle cultivation.

scholarly journals Is small mammal mycophagy relevant for truffle cultivation?

2013 ◽  
Vol 47 (2) ◽  
pp. 139-143 ◽  
Author(s):  
Alexander Urban ◽  
Marija Kataržytė ◽  
Susanne Schickman ◽  
Katharina Kräutler ◽  
Tony Pla
Keyword(s):  
Adverse Effect ◽  
Small Mammal ◽  
Potential Role ◽  
Potential Adverse Effect ◽  
Hypogeous Fungi ◽  
Truffle Cultivation

The role of small mammal mycophagy as vectors of hypogeous fungi is well established. However, little is known about dispersal of gourmet truffle species by mammal vectors, or about the potential role of mycophagy in truffle plantations. We hypothesize that small mammal mycophagy contributes to the productivity of truffle plantations by providing inoculum for truffle mycelium establishment and mating. Spread of non-desired competitors of gourmet truffles is a potential adverse effect of small mammal mycophagy.

Arthopyrenia cerasi. [Descriptions of Fungi and Bacteria].

2015 ◽  
Author(s):  
D. W. Minter
Keyword(s):  
New York ◽  
Conservation Status ◽  
Corylus Avellana ◽  
Komi Republic ◽  
Alnus Rubra ◽  
Novosibirsk Oblast ◽  
Krasnoyarsk Krai ◽  
Prunus Domestica ◽  
Altai Republic ◽  
Quercus Pubescens

Abstract A description is provided for Arthopyrenia cerasi. Some information on its dispersal and transmission and conservation status is given, along with details of its geographical distribution (Morocco, Canada (British Columbia), USA (California, Iowa, Nebraska, New York and Washington), Colombia, Ecuador (Galapagos Islands), Armenia, Republic of Georgia, Russia (Altai Republic, Kemerovo Oblast, Krasnoyarsk Krai and Novosibirsk Oblast), Vietnam, Austria, Belarus, Bosnia-Hercegovina, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Hungary, Irish Republic, Italy, Norway, Poland, Portugal, Romania, Russia (Komi Republic), Slovakia, Slovenia, Spain, Sweden, Switzerland, Ukraine and UK) and hosts (Prunus sp., Abies sp., Alnus rubra, Alnus sp., Corylus avellana, Malacothamnus fasciculatus, Populus tremula, Populus sp., Prunus domestica, Quercus pubescens, Q. rubra, Quercus sp. and Salix sp.).

Naetrocymbe nitescens. [Descriptions of Fungi and Bacteria].

2015 ◽  
Author(s):  
D. W. Minter
Keyword(s):  
Geographical Distribution ◽  
Fagus Sylvatica ◽  
Conservation Status ◽  
Corylus Avellana ◽  
Fraxinus Excelsior ◽  
Carpinus Betulus ◽  
Ilex Aquifolium ◽  
Irish Republic

Abstract A description is provided for Naetrocymbe nitescens. Some information on its dispersal and transmission and conservation status is given, along with details of its geographical distribution (France, Denmark, Germany, Hungary, Irish Republic, Norway, Poland, Spain and UK), hosts (Carpinus betulus, Corylus avellana, Fagus sylvatica, Fraxinus excelsior, Ilex aquifolium, Quercus sp. and Sorbus sp.) and associated organisms (Arthonia cinnabarina, Arthonia elegans, Arthopyrenia salicis, Arthopyrenia viridescens, Arthonia ilicina, Arthothelium macounii, Graphis scripta, Lecanora chlarotera, Mycomicrothelia confusa, Pertusaria leioplaca, Pyrenula laevigata, Pyrenula neglecta, Thelotrema sp. and Trentepohlia sp.).

The issue of radioactive contamination in context of ecosystem services development

2016 ◽  
Vol 3 (3) ◽  
pp. 48-53 ◽  
Author(s):  
G. Chobotko ◽  
L. Raychuk ◽  
I. McDonald
Keyword(s):  
Ecosystem Services ◽  
The State ◽  
Natural Ecosystems ◽  
Type Region ◽  
State Register ◽  
Agrarian Policy ◽  
Literary Sources ◽  
Radiation Contamination ◽  
Logical Research

The aim of the article was to defi ne the role of the radioactive environment contamination in the formation of ecosystem services strategy. Methods. Monographic, systemic and structural, factor analysis, abstract and logical research methods have been used. The data from the State Statistics Service of Ukraine, the Ministry of Agrarian Policy and Food of Ukraine, the Ministry of Ecology and Natural Resources of Ukraine, materials of scientifi c researches, international materials and reports and other literary sources on the issues investigated have been used as an information base. Results. Retrospective analysis of sources and state of radioactive eco- systems contamination was conducted and the priority steps in developing the concept of ecosystem services in conditions of radiation contamination were found. Conclusions. The current socio-ecological paradigm of the transition from environmental use to environmental management should be refl ected in the relevant envi- ronmental management mechanisms. Currently, when assessing the state of ecosystem services in Ukraine and worldwide one must take into account the changes in food demand of residents of radioactively contaminated areas, the exploitation of radioactively safe ecosystems growth, their overload and degradation. All of this re- quires an inventory of ecosystem services by type, region, consumers, etc. and the formation of a state register of ecosystem services with a clear assignment of area of responsibility for appropriate natural ecosystems. This will help to make the economic evaluation of different ecosystem services and mechanisms of charges for ecosystem services.

Landscape Change in the Steppe of Algeria South-West Using Remote Sensing

2018 ◽  
Vol 18 (1) ◽  
pp. 41-52
Author(s):  
Tayeb Sitayeb ◽  
Ishak Belabbes
Keyword(s):  
Remote Sensing ◽  
Social Systems ◽  
Bare Soil ◽  
Climatic Conditions ◽  
Landscape Dynamics ◽  
Landsat 8 ◽  
Natural Ecosystems ◽  
Stipa Tenacissima ◽  
Steppe Species ◽  
Sparse Vegetation

Abstract Landscape dynamics is the result of interactions between social systems and the environment, these systems evolving significantly over time. climatic conditions and biophysical phenomena are the main factors of landscape dynamics. Also, currently man is responsible for most changes affecting natural ecosystems. The objective of this work is to study the dynamics of a typical landscape of western Algeria in time and space, and to map the distribution of vegetation groups constitute the vegetation cover of this ecosystem. as well as using a method of monitoring the state of a fragile ecosystem by remote sensing to understand the processes of changes in this area. The steppe constitutes a large arid area, with little relief, covered with low and sparse vegetation. it lies between the annual isohyets of 100 to 400 mm, subjected to a very old human exploitation with an activity of extensive breeding of sheep, goats, and camels. Landsat satellite data were used to mapping vegetation groups in the Mecheria Steppe at a scale of 1: 300,000. Then, a comparison was made between the two maps obtained by a classification of Landsat-8 sensor Operational Land Imager (OLI) acquired on March 18, 2014, and Landsat-5 sensor Thematic Mapper (TM) acquired on April 25, 1987. The results obtained show the main changes affecting the natural distribution of steppe species, a strong change in land occupied by the Stipa tenacissima steppe with 65% of change, this steppe is replaced by Thymelaea microphylla, Salsola vermiculata, lygeum spartum and Peganum harmala steppe. an absence from the steppe Artemisia herba-alba that has also been replaced by the same previous steppes species. The groups with Quercus ilex and Juniperus phoenicea are characterized by a strong regression that was lost 60% of its global surface and transformed by steppe to stipa tenacissima and bare soil.

CONTRIBUIÇÃO AO CONHECIMENTO DA AVIFAUNA DO MUNICÍPIO DE TAQUARA, RIO GRANDE DO SUL

2019 ◽  
Vol 2 ◽  
pp. 28
Author(s):  
Marcelo Pereira de Barros ◽  
Ana Paula Lima da Silveira ◽  
Bruna Reis Ferreira
Keyword(s):  
Rural Areas ◽  
Rio Grande ◽  
Bird Community ◽  
Frequency Of Occurrence ◽  
Diverse Group ◽  
Rio Grande Do Sul ◽  
Natural Ecosystems ◽  
Environmental Disturbances ◽  
Environmental Pressures ◽  
Hydrographic Basin

As aves destacam-se dentro dos vertebrados por serem um grupo diverso e adaptado a diferentes ambientes, a composição da comunidade de aves de um determinado local é um importante bioindicador ambiental, pois ela reflete alterações recentes ou pretéritas de determinada área. Na Bacia Hidrográfica do Rio dos Sinos, as pressões sobre os remanescentes de ecossistemas naturais são intensas em decorrência da urbanização crescente, do estabelecimento de indústrias e da ampliação das fronteiras agrícolas, esses fatores associados geram a redução e fragmentação de habitats, com impactos irrecuperáveis para a flora e a fauna. Devido à escassez de dados sobre a avifauna do município de Taquara, o presente estudo teve como objetivo levantar informações sobre o grupo, listando as espécies de aves locais. Entre agosto de 2016 e junho de 2017 foram realizadas quatro amostragens mensais em duas áreas rurais do município, totalizando 44 campanhas de observação e 132 horas de esforço amostral. As espécies foram identificadas e classificadas conforme sua frequência de ocorrência mensal, em espécies comuns e raras. Foram registradas 133 espécies distribuídas em 47 famílias, o que representa mais de 20% das espécies ocorrentes para o estado. Ao longo do período amostrado, 90 espécies foram classificadas como comuns e 47 consideradas raras para as áreas pesquisadas.Palavras-chave: Aves. Bacia hidrográfica do Rio dos Sinos. Preservação.ABSTRACTBirds stand out within vertebrates because they are a diverse group adapted to different environments. The composition of the bird community of a certain place is an important environmental bioindicator since it reflects recent or previous environmental disturbances of a certain area. In the Sinos River Basin, environmental pressures on the remnants of natural ecosystems are intense as a result of increasing urbanization, the establishment of industries and expansion of agricultural frontiers which generate habitat reduction and fragmentation with irrecoverable damages on flora and fauna. Due to the scarcity of data on the avifauna of the municipality of Taquara, the present study aimed to gather information and list the species of local birds. Between August 2016 and June 2017, four monthly samplings were carried out in two rural areas of the municipality, totaling 44 observation campaigns and 132 hours of sample effort. The species were identified and classified as common and rare according to their frequency of occurrence. There were 133 species distributed in 47 families, representing more than 20% of the species that occurred in the state. During the sampled period, 90 species were classified as common and 47 were considered rare for the areas surveyed.Keywords: Birds. Hydrographic basin of Sinos River. Preservation.

Ecological plasticity of nut crops of the collections of the federal scientific center for agroecology RAS

2019 ◽  
pp. 105-115
Author(s):  
А.Ш. Хужахметова
Keyword(s):  
Corylus Avellana ◽  
Taxonomic Composition ◽  
Morphological Features ◽  
Scientific Center ◽  
Significance Level ◽  
Ecological Plasticity ◽  
Protective Forest ◽  
Corylus Avellana L ◽  
Academy Of Sciences ◽  
Trees And Shrubs

Показана актуальность изучения экологической пластичности древесных растений в связи с необходимостью подбора адаптированного видового состава деревьев и кустарников для защитных лесных насаждений в условиях климатических изменений. Установлено, что экологическая пластичность и пределы толерантности растений связаны со свойством организмов адаптироваться к тому или иному диапазону факторов среды. В статье представлен таксономический состав орехоплодных культур коллекций ФНЦ агроэкологии РАН. Это шесть видов рода Juglans: J. regia, J. mandshurica, J. cinerea, J. rupestris, J. ailanthifolia, J. nigra и три вида рода Corylus: С. avellana L., С. аmericana W., сорта С. pontica C. Koch Президент, Футкурами, Черкесский2. Приведены сведения о положительном опыте культивирования Corylus avellana L. в плантационных насаждениях (1,6 га, посадка рядовая, схема размещения 55 м) в условиях южных черноземов. Цель исследований изучить экологическую пластичность орехоплодных кустарников коллекций ФНЦ агроэкологии РАН. На примере родового комплекса Corylus получены материалы по экологической пластичности орехоплодных кустарников в условиях каштановых (кадастр. 34:36:0000:14:0178), светлокаштановых почв (34:34:000000:122 34:34:060061:10). Установлены уровни изменчивости морфологических признаков ассимиляционного аппарата и плодов С. avellana L., сортов С. pontica C. Koch., которые согласуются с зимо и засухоустойчивостью. Кластерный анализ позволил выявить корреляцию признаков при 5 уровне значимости. Для целей защитного лесоразведения и озеленения засушливых районов рекомендованы Corylus avellana и Черкесский2 с выраженной вариабельностью морфологических признаков, которая указывает на их широкую экологическую валентность и адаптационные возможности в рассматриваемых условиях. The urgency of studying the ecological plasticity of woody plants in connection with the need to select an adapted species composition of trees and shrubs for protective forest plantations in the context of climate change is shown. It is established that the ecological plasticity and tolerance range of plants is associated with the ability of organisms to adapt to a particular range of environmental factors. The article presents the taxonomic composition of nut crops in the collections of FSC Agroecology RAS. Six species of Juglans: J. regia, J. mandshurica, J. cinerea, J. rupestris, J. ailanthifolia, J. nigra and three species of the genus Corylus: С. avellana L., С. аmericana W., varieties of C. pontica C. Koch the President, Futkurami, Circassian2. Data on positive experience of cultivation of Corylus avellana L. in plantation plantings (1,6 hectares, landing ordinary, the scheme of placement of 55 m) in the conditions of southern chernozems are given. The purpose of the research is to study the ecological plasticity of nutbearing shrubs of the collections of the Federal scientific center for Agroecology Russian Academy of Sciences. For example, a generic complex Corylus submissions received on the environmental plasticity of nut bushes in the conditions of brown (the cadaster nubmer 34:36:0000:14:0178), light chestnut soils (34:34:000000:122 34:34:060061:10). The levels of variability of morphological features of the assimilation apparatus and fruits of Corylus avellana L., С. pontica C. Koch varieties were established., which are consistent with winter and drought resistance. Cluster analysis revealed the correlation of features at 5 significance level. Corylus avellana and Circassian2 with a pronounced variability of morphological features, which indicates their broad ecological valence and adaptation capabilities in the conditions under consideration, are recommended for the purposes of protective afforestation and greening of dry areas.

Biological effects of low-intensity radiofrequency fields and risk assessment for biota

2020 ◽  
Vol 60 (9) ◽  
pp. 592-596
Author(s):  
Elena I. Sarapultseva ◽  
Darya V. Uskalova ◽  
Ksenya V. Ustenko
Keyword(s):  
Radio Frequency ◽  
Electromagnetic Radiation ◽  
Electromagnetic Fields ◽  
Negative Impact ◽  
Biological Effects ◽  
High Sensitivity ◽  
Communication Technologies ◽  
Natural Ecosystems ◽  
Low Intensity ◽  
Different Levels

Despite the fact that there are still conflicting opinions about the damage caused by modern wireless communication technologies, most scientists report on the negative biological effects of low-intensity radio frequency electromagnetic radiation at different levels of the organization of live nature. There is no doubt that there is a need not only for a sanitary and hygienic assessment of man-made electromagnetic effects on humans, but also for an environmental assessment for biota. The purpose of the study was to assess the potential environmental risk of electromagnetic impact in the centimeter range on natural ecosystems. The initial data were the authors' own results in the field of radiobiology of non-ionizing radiation, as well as published of other researchers. The article analyzes the biological effects of radio frequency electromagnetic fields detected in organisms of different systematic groups and levels of organization. The data on the non-thermal biological effects of electromagnetic fields indicate a high sensitivity of different species to this factor. The analyzed research results emphasize the need to take into account the features of non-thermal effects of electromagnetic radiation on biota, since these radiations can have a negative impact on different hierarchical levels in natural ecosystems.

Saint Photius of Constantinople. Amphilochia. Treatises 223-248

2019 ◽  
pp. 44-76
Author(s):  
Дмитрий Евгеньевич Афиногенов
Keyword(s):  
Educational Materials ◽  
Historical Information ◽  
Expanded Form

Публикуемая часть «Амфилохий» представляет собой собрание кратких сочинений, в которых рассматриваются темы, уже затрагивавшиеся патриархом в более пространных трактатах: и экзегетические, и чисто богословские. В некоторых случаях свт. Фотий старается дать максимально сжатое изложение уже разобранного вопроса, но иногда и уточняет и пересматривает свои взгляды. В этот раздел попали учебные материалы (например, трактат 225) и сведения историко-этиологического характера (например, трактат 242). The part of «Amphilochia» published here is a collection of mostly short works, which treat the topics, both exegetical and theological, previously developed by the patriarch in more expanded form. In some cases St Photios strives to provide a most concise summary of the already investigated problem, but sometimes he expounds his views more precisely or even revises certain points. The section includes also educational materials (for instance, treatise № 225) and pieces of historical information, such as treatise № 242.

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