Antoaneta Petrova - Academia.edu (original) (raw)

Papers by Antoaneta Petrova

Review of the Bulgarian Geological Society

The study deals with the evaluation of the dynamic of the radon index in one pilot site based on ... more The study deals with the evaluation of the dynamic of the radon index in one pilot site based on second-time pilot investigations of the radon index in Bulgaria. In situ measurements of the radon concentration in soil gas, and soil permeability at three polygons: one over and two – close to fault zone have been performed in October 2020 and October 2022. The results show that higher radon content is detected in the fault zone in both cases.

The Editorial Board expresses sincere thanks to all of the reviewers of the papers included or no... more The Editorial Board expresses sincere thanks to all of the reviewers of the papers included or not accepted in vol. 16, 2010 of Phytologia Balcanica: name institution town country

Created in 1948, IUCN has evolved into the world's largest and most diverse environmental network... more Created in 1948, IUCN has evolved into the world's largest and most diverse environmental network. It harnesses the experience, resources and reach of its more than 1,300 Member organisations and the input of over 10,000 experts. IUCN is the global authority on the status of the natural world and the measures needed to safeguard it. Our experts are organised into six commissions dedicated to species survival, environmental law, protected areas, social and economic policy, ecosystem management, and education and communication www.iucn.org twitter.com/IUCN

The study deals with pilot investigations of the radon index in Bulgaria. In situ measurements of... more The study deals with pilot investigations of the radon index in Bulgaria. In situ measurements of the radon activity and soil permeability at 3 sites one over and two – close to fault zone have been performed. The results show that higher radon content is detected in the fault zone.

In 2016, in the Botanical Garden of the Bulgarian Academy of Sciences in Sofia, a population of t... more In 2016, in the Botanical Garden of the Bulgarian Academy of Sciences in Sofia, a population of the alien species Acalypha australis (Euphorbiaceae) was found. During a subsequent study, it was found out that the formerly reported for Bulgaria A. virginica was misidentified and the only Acalypha species registered in the country is A. australis. The species was collected for the first time in Bulgaria in the 1960s. The article provides a brief morphological description of the species, comments on the distinguishing characters from similar species, data and discussion on the phenology and distribution in the country.

Epipactis leptochila is reported as a new species for the Bulgarian flora on the basis of persona... more Epipactis leptochila is reported as a new species for the Bulgarian flora on the basis of personal collections and a revision of the specimens of genus Epipactis in the herbaria SOM, SO and SOA. There are records from three mountain areas: the Balkan Range (Central), Mt Vitosha and Rila Mts. Data about the habitats and populations are given and the threat status is evaluated.

Dactylorhiza maculata subsp. transsilvanica was recorded for the first time in Bulgaria. The taxo... more Dactylorhiza maculata subsp. transsilvanica was recorded for the first time in Bulgaria. The taxon grows in wet meadows in the Western Balkan Range, NW Bulgaria. Data about the morphology, habitats and populations are presented and illustrated with colour photographs. Tetraploid chromosome number (2n = 4x = 80) for the taxon was obtained, congruent with the earlier published data from elsewhere.

Phytologia Balcanica, 2009

A new species of Euphorbia-E. davidii-from the E. dentata group has been recorded in Bulgaria. Th... more A new species of Euphorbia-E. davidii-from the E. dentata group has been recorded in Bulgaria. The species is native to North America and was found in the ferry complex at lake Beloslav and Razdelna shunting-yard railway station, near the city of Varna, the Black Sea Coast floristic region. The morphology of the species is described and illustrated on the basis of material from Bulgaria.

New chorological data are reported on 11 species. Of these, new taxa for the Rhodopes are Euphorb... more New chorological data are reported on 11 species. Of these, new taxa for the Rhodopes are Euphorbia velenovskyi and Nepeta nuda subsp. albiflora. Four species are new for the subregion of Rhodopi Mts (Central): Carex panicea, Eleocharis uniglumis, Melica transsilvanica and Scabiosa micrantha. The distribution in the Rhodopi Mts (Central) of five relatively common species in the country is confirmed, but unmentioned for the region in the contemporary general sources on the Bulgarian flora.

Vincetoxicum nigrum, native to Southwest Europe and spread as an alien species in other regions o... more Vincetoxicum nigrum, native to Southwest Europe and spread as an alien species in other regions of the world, is recorded for the first time in Bulgaria. An established population was found along the Okolovrasten Pat Road around Sofia. Avena byzantina was found as a casual species, with a single individual, along the same road.

New chorological data about 24 taxa are reported in the present work. Nine species are new for th... more New chorological data about 24 taxa are reported in the present work. Nine species are new for the floristic region of the Black Sea Coast, two for the Northeast Bulgaria, four for the Balkan Range (Eastern)-three of them collected in the area of Sliven divide, one for the Toundzha Hilly Country and three for Mt Strandzha. One more species is confirmed for the Balkan Range. Data are also supplied on the new localities of some rare plants, including a second locality for Cytinus clusii in the country.

Phytol. Balcan, 2004

New chorological data are reported about 16 taxa from floristic regions of Sofia (3 new species),... more New chorological data are reported about 16 taxa from floristic regions of Sofia (3 new species), Mt Vitosha (6 species), Rila Mts (7 species new or confirmed), and Mt Sredna Gora (Western-3 species). The distribution of Thesium linophyllon, a rare species for Bulgaria entered in the Red Data Book of the PR Bulgaria, has been confirmed for the Mt Vitosha region (Mt Plana), two populations of which were found.

Abstract. New chorological data are reported about 16 taxa from floristic regions of Sofia (3 new... more Abstract. New chorological data are reported about 16 taxa from floristic regions of Sofia (3 new species), Mt Vi-tosha (6 species), Rila Mts (7 species new or confirmed), and Mt Sredna Gora (Western – 3 species). The distribution of Thesium linophyllon, a rare species for Bulgaria entered in the Red Data Book of the PR Bulgaria, has been confirmed for the Mt Vitosha region (Mt Plana), two populations of which were found.

PETROVA A., VENKOVA D., SOPOTLIEVA D. 2006. Contribution to the flora of the Rhodopes and the Thr... more PETROVA A., VENKOVA D., SOPOTLIEVA D. 2006. Contribution to the flora of the Rhodopes and the Thracian plain. – Historia naturalis bulgarica, 17: 27-33. Abstract. New chorological data for 21 species are reported. New for the Rhodopes floristic region are 7 taxa, while there are 4 new ones for the Eastern Rhodopes subregion. New for the Thracian plain floristic region are 3 species, other 2 species are confirmed for this region. Two of

Epipactis exilis and E. greuteri are reported for the Bulgarian flora on the basis of the authors... more Epipactis exilis and E. greuteri are reported for the Bulgarian flora on the basis of the authors' collections and a revision of the specimens of genus Epipactis in the herbaria SOM, SO and SOA. A description of the habitats and data about the size and the spatial structure of the populations is given. According to an evaluation of the species according to the IUCN Red List of Categories and Criteria applied at regional level, E. exilis is classified as Endangered and E. greuteri as Critically Endangered.

Abstract. New chorological data are reported on 11 species. Of these, new taxa for the Rhodopes a... more Abstract. New chorological data are reported on 11 species. Of these, new taxa for the Rhodopes are Euphorbia velenovskyi and Nepeta nuda subsp. albiflora. Four species are new for the subregion of Rhodopi Mts (Central): Carex panicea, Eleocharis uniglumis, Melica transsilvanica and Scabiosa micrantha. The distribution in the Rhodopi Mts (Central) of five relatively common species in the country is confirmed, but unmentioned for the region in the contemporary general sources on the Bulgarian flora.

Two species of Centaurea, C. jankae and C. trinervia, are reported as new for Bulgaria. Both were... more Two species of Centaurea, C. jankae and C. trinervia, are reported as new for Bulgaria. Both were found in Northeast Bulgaria, near Nevsha and Venchan villages, Varna district. A description of the habitats and data about the size and spatial structure of the populations are presented.

Abstract. A new species for the Bulgarian flora, Vulpia fasciculata (Poaceae), is reported. The s... more Abstract. A new species for the Bulgarian flora, Vulpia fasciculata (Poaceae), is reported. The species was found in seven locations on the Southern Black Sea Coast. All locations are on coastal sands, which are a typical habitat for this species. The status of six populations is described and the origin of the species in the Bulgarian flora is discussed.

Review of the Bulgarian Geological Society

The study deals with the evaluation of the dynamic of the radon index in one pilot site based on ... more The study deals with the evaluation of the dynamic of the radon index in one pilot site based on second-time pilot investigations of the radon index in Bulgaria. In situ measurements of the radon concentration in soil gas, and soil permeability at three polygons: one over and two – close to fault zone have been performed in October 2020 and October 2022. The results show that higher radon content is detected in the fault zone in both cases.

The Editorial Board expresses sincere thanks to all of the reviewers of the papers included or no... more The Editorial Board expresses sincere thanks to all of the reviewers of the papers included or not accepted in vol. 16, 2010 of Phytologia Balcanica: name institution town country

Created in 1948, IUCN has evolved into the world's largest and most diverse environmental network... more Created in 1948, IUCN has evolved into the world's largest and most diverse environmental network. It harnesses the experience, resources and reach of its more than 1,300 Member organisations and the input of over 10,000 experts. IUCN is the global authority on the status of the natural world and the measures needed to safeguard it. Our experts are organised into six commissions dedicated to species survival, environmental law, protected areas, social and economic policy, ecosystem management, and education and communication www.iucn.org twitter.com/IUCN

The study deals with pilot investigations of the radon index in Bulgaria. In situ measurements of... more The study deals with pilot investigations of the radon index in Bulgaria. In situ measurements of the radon activity and soil permeability at 3 sites one over and two – close to fault zone have been performed. The results show that higher radon content is detected in the fault zone.

In 2016, in the Botanical Garden of the Bulgarian Academy of Sciences in Sofia, a population of t... more In 2016, in the Botanical Garden of the Bulgarian Academy of Sciences in Sofia, a population of the alien species Acalypha australis (Euphorbiaceae) was found. During a subsequent study, it was found out that the formerly reported for Bulgaria A. virginica was misidentified and the only Acalypha species registered in the country is A. australis. The species was collected for the first time in Bulgaria in the 1960s. The article provides a brief morphological description of the species, comments on the distinguishing characters from similar species, data and discussion on the phenology and distribution in the country.

Epipactis leptochila is reported as a new species for the Bulgarian flora on the basis of persona... more Epipactis leptochila is reported as a new species for the Bulgarian flora on the basis of personal collections and a revision of the specimens of genus Epipactis in the herbaria SOM, SO and SOA. There are records from three mountain areas: the Balkan Range (Central), Mt Vitosha and Rila Mts. Data about the habitats and populations are given and the threat status is evaluated.

Dactylorhiza maculata subsp. transsilvanica was recorded for the first time in Bulgaria. The taxo... more Dactylorhiza maculata subsp. transsilvanica was recorded for the first time in Bulgaria. The taxon grows in wet meadows in the Western Balkan Range, NW Bulgaria. Data about the morphology, habitats and populations are presented and illustrated with colour photographs. Tetraploid chromosome number (2n = 4x = 80) for the taxon was obtained, congruent with the earlier published data from elsewhere.

Phytologia Balcanica, 2009

A new species of Euphorbia-E. davidii-from the E. dentata group has been recorded in Bulgaria. Th... more A new species of Euphorbia-E. davidii-from the E. dentata group has been recorded in Bulgaria. The species is native to North America and was found in the ferry complex at lake Beloslav and Razdelna shunting-yard railway station, near the city of Varna, the Black Sea Coast floristic region. The morphology of the species is described and illustrated on the basis of material from Bulgaria.

New chorological data are reported on 11 species. Of these, new taxa for the Rhodopes are Euphorb... more New chorological data are reported on 11 species. Of these, new taxa for the Rhodopes are Euphorbia velenovskyi and Nepeta nuda subsp. albiflora. Four species are new for the subregion of Rhodopi Mts (Central): Carex panicea, Eleocharis uniglumis, Melica transsilvanica and Scabiosa micrantha. The distribution in the Rhodopi Mts (Central) of five relatively common species in the country is confirmed, but unmentioned for the region in the contemporary general sources on the Bulgarian flora.

Vincetoxicum nigrum, native to Southwest Europe and spread as an alien species in other regions o... more Vincetoxicum nigrum, native to Southwest Europe and spread as an alien species in other regions of the world, is recorded for the first time in Bulgaria. An established population was found along the Okolovrasten Pat Road around Sofia. Avena byzantina was found as a casual species, with a single individual, along the same road.

New chorological data about 24 taxa are reported in the present work. Nine species are new for th... more New chorological data about 24 taxa are reported in the present work. Nine species are new for the floristic region of the Black Sea Coast, two for the Northeast Bulgaria, four for the Balkan Range (Eastern)-three of them collected in the area of Sliven divide, one for the Toundzha Hilly Country and three for Mt Strandzha. One more species is confirmed for the Balkan Range. Data are also supplied on the new localities of some rare plants, including a second locality for Cytinus clusii in the country.

Phytol. Balcan, 2004

New chorological data are reported about 16 taxa from floristic regions of Sofia (3 new species),... more New chorological data are reported about 16 taxa from floristic regions of Sofia (3 new species), Mt Vitosha (6 species), Rila Mts (7 species new or confirmed), and Mt Sredna Gora (Western-3 species). The distribution of Thesium linophyllon, a rare species for Bulgaria entered in the Red Data Book of the PR Bulgaria, has been confirmed for the Mt Vitosha region (Mt Plana), two populations of which were found.

Abstract. New chorological data are reported about 16 taxa from floristic regions of Sofia (3 new... more Abstract. New chorological data are reported about 16 taxa from floristic regions of Sofia (3 new species), Mt Vi-tosha (6 species), Rila Mts (7 species new or confirmed), and Mt Sredna Gora (Western – 3 species). The distribution of Thesium linophyllon, a rare species for Bulgaria entered in the Red Data Book of the PR Bulgaria, has been confirmed for the Mt Vitosha region (Mt Plana), two populations of which were found.

PETROVA A., VENKOVA D., SOPOTLIEVA D. 2006. Contribution to the flora of the Rhodopes and the Thr... more PETROVA A., VENKOVA D., SOPOTLIEVA D. 2006. Contribution to the flora of the Rhodopes and the Thracian plain. – Historia naturalis bulgarica, 17: 27-33. Abstract. New chorological data for 21 species are reported. New for the Rhodopes floristic region are 7 taxa, while there are 4 new ones for the Eastern Rhodopes subregion. New for the Thracian plain floristic region are 3 species, other 2 species are confirmed for this region. Two of

Epipactis exilis and E. greuteri are reported for the Bulgarian flora on the basis of the authors... more Epipactis exilis and E. greuteri are reported for the Bulgarian flora on the basis of the authors' collections and a revision of the specimens of genus Epipactis in the herbaria SOM, SO and SOA. A description of the habitats and data about the size and the spatial structure of the populations is given. According to an evaluation of the species according to the IUCN Red List of Categories and Criteria applied at regional level, E. exilis is classified as Endangered and E. greuteri as Critically Endangered.

Abstract. New chorological data are reported on 11 species. Of these, new taxa for the Rhodopes a... more Abstract. New chorological data are reported on 11 species. Of these, new taxa for the Rhodopes are Euphorbia velenovskyi and Nepeta nuda subsp. albiflora. Four species are new for the subregion of Rhodopi Mts (Central): Carex panicea, Eleocharis uniglumis, Melica transsilvanica and Scabiosa micrantha. The distribution in the Rhodopi Mts (Central) of five relatively common species in the country is confirmed, but unmentioned for the region in the contemporary general sources on the Bulgarian flora.

Two species of Centaurea, C. jankae and C. trinervia, are reported as new for Bulgaria. Both were... more Two species of Centaurea, C. jankae and C. trinervia, are reported as new for Bulgaria. Both were found in Northeast Bulgaria, near Nevsha and Venchan villages, Varna district. A description of the habitats and data about the size and spatial structure of the populations are presented.

Abstract. A new species for the Bulgarian flora, Vulpia fasciculata (Poaceae), is reported. The s... more Abstract. A new species for the Bulgarian flora, Vulpia fasciculata (Poaceae), is reported. The species was found in seven locations on the Southern Black Sea Coast. All locations are on coastal sands, which are a typical habitat for this species. The status of six populations is described and the origin of the species in the Bulgarian flora is discussed.