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Romanian Academy

Tourism and Rural Space

27th International Conference

29-31 May 2025

Vatra Dornei

Ministry of Agriculture and Rural Development

Parallel Sessions I

Session 1

Thursday, 29 May

12:15 PM - 1:30 PM (Bucharest Time)

National Agency for Mountain Areas - ANZM

Mountain Amphitheater

Language: English

Chair: TBA

Connect online

  • Minodora MANU, Senior Researcher, Institute of Biology, Romanian Academy, Bucharest, Romania

  • Raluca Ioana BÄ‚NCILÄ‚, Senior Researcher, "Emil Racoviţă" Institute of Speleology, Romanian Academy,  Bucharest, Romania

  • Owen MOUNTFORD, Senior Researcher, Centre for Ecology and Hydrology, Maclean Building, Benson Lane, Crowmarsh Gifford, Wallingford, Oxfordshire, United Kingdom

  • Teodor MARUȘCA, Senior Researcher, Grassland Research and Development Institute, BraÅŸov, Romania

  • Adrian Vasile BLAJ, Senior Researcher, Grassland Research and Development Institute, BraÅŸov, Romania

  • Marilena ONETE, Senior Researcher, Institute of Biology, Romanian Academy, Bucharest, Romania

.

Soil Mite Fauna as Bioindicator of Management Type of Praticolous Ecosystems from Bucegi Mountains, Romania

This study demonstrates the importance of knowing the ecology of the mite communities, as important tools for environment assessment. Permanent grasslands represent 33% of the total utilized agricultural area in Europe and 18.90% in Romania. Grasslands are among the most species-rich habitats in Europe. The mountain grasslands of Romania are very important from ecological and pastoral points of view. They are characterized by many species of plants and animals that often have an ecological plasticity. Scientific studied demonstrated that maintaining functionally diverse invertebrate communities in grasslands may have positive effects on ecosystem functionality. Soil mites (Acari, Mesostigmata) are one of the most abundant invertebrates groups. Most species are predators. About 11,000 species have been identified in the world. In soil, they participate indirectly in the decomposition process, feeding mainly on decomposer invertebrates with soft bodies (e.g. springtails, nematodes, larvae of insects or oribatids). They are considering valuable bioindicators, recording a spatial variability that change over time and influenced by climatic conditions. Biotic and abiotic factors exert regulatory effects on their populations. Many researchers studied the influence of grazing intensity, fertilization and different abiotic factors on the Mesostigmata communities. Other studied investigated the structure, seasonal and vertical distribution of the mite populations from different types of grasslands. In Romania, studies on Mesostigmata mites have been focused on qualitative and quantitative data or on the influence of heavy metal pollution and other climatic factors on their communities. None of these studies took into consideration chemical and organically fertilised experimental grasslands and their relationship with Mesostigmata fauna. Considering all these aspects, we proposed to investigate some ecological aspects (including the dispersion rate) of soil mite fauna from five experimental grasslands, in correlation with abiotic factors (vegetation cover, soil temperature, soil moisture content, pH, soil resistance at penetration). In July 2017, 250 soil samples were analyzed, revealing the presence of 30 species, with 1163 individuals. Using modern statistical analysis, we observed that each experimental plot was defined by characteristically environmental conditions, vegetation cover, soil moisture content and soil temperature differing significantly among the experimental grasslands. Each experimental plot was characterized by the specific indicator species and population parameters (numerical abundance and species richness). The effect of these soil variables was demonstrated even at species level. Analysing the dispersal rates of mite communities between the plots (based on species frequency), we demonstrated that between the experimental grasslands dominated by the accessory and accidental species, the mobility of these invertebrate communities was higher.

Parallel Sessions II

Session 4

Thursday, 29 May

4:00 PM - 7:30 PM (Bucharest Time)

National Agency for Mountain Areas - ANZM

Mountain Amphitheater

Language: English

Chair: TBA

Connect online

  • Minodora MANU, Senior Researcher, Institute of Biology, Romanian Academy, Bucharest, Romania

  • Raluca Ioana BÄ‚NCILÄ‚, Senior Researcher, "Emil Racoviţă" Institute of Speleology, Romanian Academy,  Bucharest, Romania

  • Owen MOUNTFORD, Senior Researcher, Centre for Ecology and Hydrology, Maclean Building, Benson Lane, Crowmarsh Gifford, Wallingford, Oxfordshire, United Kingdom

  • Teodor MARUȘCA, Senior Researcher, Grassland Research and Development Institute, BraÅŸov, Romania

  • Adrian Vasile BLAJ, Senior Researcher, Grassland Research and Development Institute, BraÅŸov, Romania

  • Marilena ONETE, Senior Researcher, Institute of Biology, Romanian Academy, Bucharest, Romania

.

Soil Mite Fauna as Bioindicator of Management Type of Praticolous Ecosystems from Bucegi Mountains, Romania

This study demonstrates the importance of knowing the ecology of the mite communities, as important tools for environment assessment. Permanent grasslands represent 33% of the total utilized agricultural area in Europe and 18.90% in Romania. Grasslands are among the most species-rich habitats in Europe. The mountain grasslands of Romania are very important from ecological and pastoral points of view. They are characterized by many species of plants and animals that often have an ecological plasticity. Scientific studied demonstrated that maintaining functionally diverse invertebrate communities in grasslands may have positive effects on ecosystem functionality. Soil mites (Acari, Mesostigmata) are one of the most abundant invertebrates groups. Most species are predators. About 11,000 species have been identified in the world. In soil, they participate indirectly in the decomposition process, feeding mainly on decomposer invertebrates with soft bodies (e.g. springtails, nematodes, larvae of insects or oribatids). They are considering valuable bioindicators, recording a spatial variability that change over time and influenced by climatic conditions. Biotic and abiotic factors exert regulatory effects on their populations. Many researchers studied the influence of grazing intensity, fertilization and different abiotic factors on the Mesostigmata communities. Other studied investigated the structure, seasonal and vertical distribution of the mite populations from different types of grasslands. In Romania, studies on Mesostigmata mites have been focused on qualitative and quantitative data or on the influence of heavy metal pollution and other climatic factors on their communities. None of these studies took into consideration chemical and organically fertilised experimental grasslands and their relationship with Mesostigmata fauna. Considering all these aspects, we proposed to investigate some ecological aspects (including the dispersion rate) of soil mite fauna from five experimental grasslands, in correlation with abiotic factors (vegetation cover, soil temperature, soil moisture content, pH, soil resistance at penetration). In July 2017, 250 soil samples were analyzed, revealing the presence of 30 species, with 1163 individuals. Using modern statistical analysis, we observed that each experimental plot was defined by characteristically environmental conditions, vegetation cover, soil moisture content and soil temperature differing significantly among the experimental grasslands. Each experimental plot was characterized by the specific indicator species and population parameters (numerical abundance and species richness). The effect of these soil variables was demonstrated even at species level. Analysing the dispersal rates of mite communities between the plots (based on species frequency), we demonstrated that between the experimental grasslands dominated by the accessory and accidental species, the mobility of these invertebrate communities was higher.

CONTACT

Georgia Tacu

Tel: +40 759 669 081

E-mail: geo_tacu@yahoo.com

​

Dănuț Ungureanu

Tel: +40 745 865 163

E-mail: danut_u@yahoo.com

WRITE TO US!

ADDRESS

National Agency for Mountain Areas - ANZM

23 Runc Street, 725700, Vatra Dornei, Romania

​

Centre of Training and Innovation for Development

in the Carpathians - CEFIDEC

23 Runc Street, 725700, Vatra Dornei, Romania

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