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Volume 21 (2022): Issue 2 (December 2022)

Volume 21 (2022): Issue 1 (June 2022)

Volume 20 (2021): Issue 2 (December 2021)

Volume 20 (2021): Issue 1 (June 2021)

Volume 19 (2020): Issue 2 (December 2020)

Volume 19 (2020): Issue 1 (June 2020)

Volume 18 (2019): Issue 2 (December 2019)

Volume 18 (2019): Issue 1 (June 2019)

Volume 17 (2018): Issue 2 (December 2018)

Volume 17 (2018): Issue 1 (June 2018)

Volume 16 (2017): Issue 2 (December 2017)

Volume 16 (2017): Issue 1 (June 2017)

Volume 15 (2016): Issue 2 (December 2016)

Volume 15 (2016): Issue 1 (June 2016)

Volume 14 (2015): Issue 1 (June 2015)

Volume 13 (2014): Issue 2 (December 2014)

Volume 13 (2014): Issue 1 (June 2014)

Volume 12 (2013): Issue 2 (December 2013)

Volume 12 (2013): Issue 1 (June 2013)

Volume 11 (2012): Issue 2 (December 2012)

Volume 11 (2012): Issue 1 (January 2012)

Volume 10 (2011): Issue 2 (December 2011)

Volume 10 (2011): Issue 1 (June 2011)

Volume 9 (2010): Issue 2 (December 2010)

Volume 9 (2010): Issue 1 (June 2010)

Volume 8 (2009): Issue 2 (December 2009)

Volume 8 (2009): Issue 1 (June 2009)

Volume 7 (2008): Issue 2 (December 2008)

Volume 7 (2008): Issue 1 (June 2008)

Volume 6 (2007): Issue 2 (December 2007)

Volume 6 (2007): Issue 1 (July 2007)

Journal Details
Format
Journal
eISSN
1854-9829
First Published
10 Jul 2007
Publication timeframe
2 times per year
Languages
English

Search

Volume 21 (2022): Issue 1 (June 2022)

Journal Details
Format
Journal
eISSN
1854-9829
First Published
10 Jul 2007
Publication timeframe
2 times per year
Languages
English

Search

13 Articles
Open Access

Phytosociology and taxonomic notes on some endemic-rich associations of the Naples Gulf

Published Online: 12 Feb 2022
Page range: 1 - 14

Abstract

Abstract

The Gulf of Naples is an important centre of endemism, well known from the floristic point of view, but much less from the phytosociological one. In this paper we investigated the non-forest vegetation focusing on communities rich in endemics. We described two communities as new: Eryngio amethystini-Santolinetum neapolitanae for the garrigues on limestone, Globulario neapolitanae-Loniceretum stabianae for the vegetation on dolomitic rocks, both from the Lattari mountains, and we extend the area of Crithmo maritimi-Limonietum cumani for the vegetation on volcanic rocks and rarely on limestones along the coast, which was known for a few localities. The syntaxonomical position and the phytogeographical context of these communities are discussed. A few taxonomic notes are added on rare or interesting species retrieved in the course of the enquiry.

Keywords

  • Chasmophyte
  • Endemic dolomite
  • Phytogeography
  • Phytosociology
  • Scrub
  • Southern Italy
Open Access

Dry grasslands on fluvial terraces of the middle reaches of river Piave in the North East Italy

Published Online: 12 Feb 2022
Page range: 15 - 40

Abstract

Abstract

Dry grassland vegetation on fluvial terraces along middle reaches of river Piave and river Brenta in Northeastern high Po plain were investigated through a phytosociological approach. Comparisons with ecologically analogous communities described from neighbouring territories lead to the description of a new association belonging to Centaureion dichroanthae alliance: Astragalo onobrychidis-Koelerietum pyramidatae. Residual fragments of Chrysopogon gryllus-dominated grassland on slighly deeper soils are refered to Chamaecytiso hirsuti-Chrysopogonetum grylli.

Keywords

  • Astragalo onobrychidis-Koelerietum pyramidatae
  • Chamaecytiso hirsuti-Chrysopogonetum grylli
  • Po plain
  • river Brenta
  • Scorzoneretalia villosae
  • Veneto
Open Access

Contribution to the knowledge of the non-calcareous grasslands of the Monti Sibillini National Park (central Italy): coenological structure, syntaxonomy, ecology, and floristic aspects

Published Online: 12 Feb 2022
Page range: 41 - 72

Abstract

Abstract

This study provides the first contribution to the knowledge of the non-calcareous grasslands of the arenaceous sector of the Monti Sibillini National Park (central Italy). We conducted 55 relevés using the Braun-Blanquet phytosociological method and analysed the ecology of plant communities by Redundancy analysis using topographic variables and Ellenberg Indicator Values as predictors. We identified nine plant communities, belonging to four classes. Communities of Calluno-Ulicetea and Nardetea strictae were found on acidic soils at higher elevations, those of Festuco-Brometea were mainly associated with steeper south-facing slopes, while Molinio-Arrhenatheretea communities were associated with low altitudes and gentle slopes, semi-flat lands, and high soil nutrient and moisture values. We recorded a total of 410 taxa at the species and subspecies level, representing about 20% of the flora of the Monti Sibillini National Park. Some of these are of high conservation interest, e.g. Calluna vulgaris, Genista sagittalis, Juncus capitatus, and Ophioglossum vulgatum. Eight species are new to the flora of Sibillini National Park.

Keywords

  • arenaceous substrates
  • flora of conservation interest
  • grasslands
  • plant sociology
Open Access

Comparison of the differences in the composition of ruderal flora between conventional tram tracks and managed green tram tracks in the urban ecosystem of the city of Bratislava

Published Online: 12 Feb 2022
Page range: 73 - 88

Abstract

Abstract

Green infrastructure (GI) brings many benefits to urban ecosystems. Green tram tracks can be considered to be a part of GI. The presented study is focused on the comparison of the species’ frequency and composition between conventional tram tracks and green tram tracks in Bratislava, Slovakia, Central Europe. This comparison also provides an insight into the changes of the flora of tram tracks over time, as we compare the results of the older research with recent research on green tram tracks. The results revealed significant differences in the composition of flora between conventional tram tracks and green tram tracks. In particular, the total number of species has decreased over time, as green tram tracks host fewer spontaneously growing taxa than conventional ones. The frequency of occurrence of archaeophytes and neophytes has decreased on the strict rail yard while on the tracksides it has increased. Green tram tracks deliver positive features to ecosystems, but may also have negative aspects because they present a pool of alien, potentially invasive plants.

Keywords

  • Central Europe
  • diversity
  • green infrastructure
  • invasive alien species
  • landscape planning
  • neophytes
Open Access

Relationships between vegetation of Macedonian pine (Pinus peuce Griseb.) and different types of soils on which it develops

Published Online: 12 Feb 2022
Page range: 89 - 106

Abstract

Abstract

This paper deals with relationships between vegetation of Macedonian pine (Pinus peuce) and soils developed on different parent materials on the territory of North Macedonia. We analysed the floristic composition at localities on limestone, on scree of dolomite marble and on scree of silicate. On limestone and scree of dolomite marble, rendzinas on hard limestone and dolomite have developed, and on silicate parent material brown forest soils. The vegetation was sampled according to the Braun-Blanquet approach. DCA and indicator values were used for ecological interpretation of the vegetation patterns. The mechanical and chemical properties of soil and textural classes were also processed. An evident increased presence of carbonates in the soil of scree of dolomite marble on Nidže Mountain was observed, unlike that on Shar Mountain which has formed on typical limestone. Although it is a forest community dominated by the same species, differences between the massifs, the precipitation regime, geology, differences in soil properties in relation to the appearance of carbonates and pH values, and other factors, result in differences in their floristic composition and are the reason for the distinction between the two groups. On silicate on Nidže Mountain, Macedonian pine forests have also developed on brown forest soils, with a different floristic composition to that of the other group on carbonate (dolomite and limestone).

Keywords

  • vegetation
  • Macedonian pine
  • soil
  • mechanical and chemical properties
  • Ellenberg indicator values
  • Braun-Blanquet approach
Open Access

Natural calcareous Norway spruce woodlands in Slovakia and their syntaxonomical classification

Published Online: 12 Feb 2022
Page range: 107 - 151

Abstract

Abstract

A second version of the syntaxonomical classification of calcareous Norway spruce communities is presented for the region of Slovak Western Carpathians. Recent knowledge on delimitation of natural Norway spruce woodlands in Slovakia is summarized as well. As result, four in Slovakia traditionally recognized associations are distinguished: Seslerio caeruleae-Piceetum on the ecologically most extreme habitats, followed by Cirsio erisithalis-Piceetum (a replacement for pseudonymically used Cortuso matthioli-Piceetum), tall-forb community of Adenostylo alliariae-Piceetum and ca. species-poor low-forb community of Mnio spinosi-Piceetum (syn. Oxalido-Piceetum). Additionally, two new associations are differentiated: Fragario vescae-Piceetum ass. prov. standing between Cirsio-Piceetum and Adenostylo-Piceetum and acidified Hieracio murorum-Piceetum on deeper soils developed over rocks of the Mráznica formation. For nomenclatural reasons, new order Cortuso-Piceetalia is described for species-rich calcicolous communities of the class Vaccinio-Piceetea as well as subordinated new alliance Cortuso matthioli-Piceion for the supramontane calcicolous Norway spruce communities.

Keywords

  • calcareous woodlands
  • forest plant communities
  • nomenclature
  • phytocoenology
  • supramontane woodland
  • syntaxonomy
  • Western Carpathians
Open Access

Quercus ×numidica Trabut (Fagaceae, Quercoideae) and Cynosuro peltierii-Quercetum afaredis Laribi ex El Mokni ass. nov. new taxon and syntaxon to Kroumirian oak forests of Tunisia with remarks on their ecology and conservation

Published Online: 12 Feb 2022
Page range: 153 - 161

Abstract

Abstract

The very little-known Quercus ×numidica Trabut, recently typified and synonymised to Q. ×kabylica Trabut, was found within the Cynosuro peltierii-Quercetum afaredis Laribi ex El Mokni ass. nov. (Quercion suberis Loisel 1971). Both the taxon and the syntaxon are described here for the first time for the oak forests of Kroumiria in Tunisia. The distribution, ecology and field photographs of the new taxon are presented and IUCN Red List assessment is provided in this paper. Threats at the national level are assessed and conservation measures for the taxon are proposed.

Keywords

  • chorology
  • conservation
  • endemism
  • Kroumiria
  • Rosids
Open Access

Vegetation mapping of the Dzharylhach Island (Ukraine)

Published Online: 12 Feb 2022
Page range: 163 - 172

Abstract

Abstract

Dzharylhach Island is the largest one in the Black Sea. It is the part of the “Dzharylhatskyi” National Nature Park, which located in the Southern Ukraine. A 1 : 10000 scale vegetation map of Dzharylhach Island has been developed. The main unit for mapping is a complex of associations. In total 28 of such complexes were identified. The map shows the territorial differentiation of vegetation. It has also been used to reconstruct the island vegetation changes over the past 90 and 20 years. A comparison of cartographic materials revealed that the predominant processes in vegetation cover are halophytization and xerophytization of communities. The most distributed types of communities on the island are aquatic – Zosteretea, halophytic – Festuco-Puccinellietea and psammophytic – Festucetea vaginatae. Due to specific hydrological and soil conditions, the northern spit and shores of the island represent natural vegetation types only.

Keywords

  • vegetation map
  • disappearance of plant communities
  • changes of vegetation
Open Access

Distribution and ecology of wild lettuces Lactuca serriola L. and Lactuca virosa L. in central Chile

Published Online: 12 Feb 2022
Page range: 173 - 186

Abstract

Abstract

Wild lettuces (Lactuca L.) provide valuable genetic resources for crop breeding, but are also significant invasive weeds. We explored the distributions, habitats, and ecological characteristics of populations of wild Lactuca species in central Chile. We documented two species – Lactuca serriola L. (prickly lettuce) and Lactuca virosa L. (opium/bitter lettuce) in 204 localities. These observations indicate that: i) both allochthonous (Euroasian) Lactuca species occur and are able to regenerate in central Chile; ii) L. serriola forms dense populations in urbanized areas; iii) both species can expand along transport corridors to high elevations; iv) the spread of L. virosa and persistence of dense populations in elevations above 2,000 m a.s.l. prove the invasiveness of this species in extreme climates; v) both species may contain novel traits of interest for germplasm conservation.

Keywords

  • allochthonous species
  • elevational limits
  • germplasm conservation
  • opium lettuce
  • plant invasion
  • prickly lettuce
Open Access

A new species for the vascular flora of Algeria: Cyperus eragrostis (Cyperaceae)

Published Online: 12 Feb 2022
Page range: 187 - 195

Abstract

Abstract

This study provides a definition and description of Cyperus eragrostis as a new alien species to Algeria and North African flora. This hemicryptophyte, native to the tropical parts of South America, is recorded for the first time in Jijel eco-complex wetlands in North-East Algeria. Applying the standard phytosociological method we studied the stands in which this alien species grows together with other hygrophilous and ruderal species. The present study improves the knowledge of the Algerian flora and completes the information about the distribution of C. eragrostis reported by the available international literature and public herbaria.

Keywords

  • Algerian flora
  • alien species
  • Cyperaceae
  • naturalized plant
  • wetlands
Open Access

Conservation Assessment of a critically endangered endemic Polygonum samsunicum (Polygonaceae) with emended description from Turkey

Published Online: 12 Feb 2022
Page range: 197 - 209

Abstract

Abstract

Polygonum samsunicum is one of the endemic species from Turkey. Up to now, it has been only known from the type locality (Samsun /Ladik). This research intends to define the global conservation status and strategies of locally distributed endemic P. samsunicum which has been confronted with the danger of extinction due to anthropogenic effects in recent years. In this research, we did extensive field studies and collected all needed data for determining the precise conservation status of P. samsunicum. We reported nine additional populations from Upper Tersakan valley, where the Mediterranean climate is dominant, and the size of populations, altitude, coordinates, habitat types, and the threats it faces in each locality were given. GeoCAT analyses at global levels indicate the grade of occurrence 21.609 km2 and area of occupancy 10.094 km2 and there could be an inferred decline due to habitat loss and fragmentation of the original population, suggesting local endemic species might be classified as CR, based on criteria B1ab (i, ii, iii) + 2ab (i, ii, iii) in the Red List categorization. Its parts are also consumed by local people due to its medicinal features. For in-situ conservation, phenological life history and detailed ecological studies, as well as population monitoring and ex-situ conservation studies should be continued together. Establishing cooperation between universities, research institutes, and local management authorities is strongly needed for long-term monitoring of population size, distribution, overgrazing, and public awareness.

Keywords

  • endemic
  • IUCN assessment
  • species conservation action plan
  • Turkey
Open Access

On the occurrence and naturalization of Amaranthus hypochondriacus (Amaranthaceae) in some European countries, with notes on its climatic features

Published Online: 12 Feb 2022
Page range: 211 - 222

Abstract

Abstract

The occurrence and invasion status of Amaranthus hypochondriacus in Belarus, Estonia, Italy, the Netherlands, and the North Caucasus were discussed. For Italy, we change the status from casual to naturalized based on living populations which are able to sustain themselves for 5 and over 20 years. Concerning the other countries, we clarified the invasion status of the species (inconsistently reported in literature) indicating it as a casual alien in Belarus, Estonia, and the North Caucasus and naturalized in the Netherlands. Climatic data of the European stations in which Amaranthus hypochondriacus was found were compared with those referring to the native distribution area (Mexico and southeastern regions of the US). The occurrence of the species in Europe appears to be facilitated by the temperate climate (Dutch and Italian localities), which also characterizes the native distribution area (N-America). The occurrence of the species in Estonia, the Netherlands, and the North Caucasus is interesting. In fact, although the types of climates (“Cold, Dfb” and “Temperate, Cfb”) occur in America (northeastern US and central Mexico), there are some differences in precipitation and temperature values, i.e. lower mean precipitation [644.1 mm (Estonia) vs. 1119 mm (N-America); climate Dfb] and lower mean temperature [9.7–11.1 °C (Netherlands and North Caucasus) vs. 15.3 °C (Mexico); climate Cfb].

Keywords

  • Europe
  • new record
  • status of naturalization
Open Access

Features of development of species of the genus Veronica L. in the conditions of steppe zone of Ukraine

Published Online: 12 Feb 2022
Page range: 223 - 233

Abstract

Abstract

The paper deals with peculiar features of development of the species Veronica L. in the conditions of the steppe zone of Ukraine (central part of the country). Under the action of climatic changes occurring for the last 20 years, the species began to grow 6–14 days earlier and increased the vegetation period by 15–25 days. Under the effect of extreme growing conditions (hot weather and drought) decrease in the area of the leaf blade by almost 2 times was recorded in V. prostrata and V. incana. Length and width of the leaf in V. prostrata and V. incana decreased by 20–30%, but in V. austriaca ssp. teucrium a decrease was observed for the leaf width only while its length increased by 17%. Analysis of correlation of climatic factors (air temperature, precipitation amount) to the morphometric parameters of the leaf during seasonal development showed greater dependence of their value on the air temperature, which was confirmed by the inverse correlation coefficients (r = -0.55–-0.66). In the unfavorable growing conditions, the features of formation of the underground part of species are manifested in the inhibited development of underground shoots (by 80–85%) and stimulation of branching and increase in the length of thin sucking roots (1.5 times). Studied species of the genus Veronica in the climatic conditions of the steppe zone of Ukraine go through all stages of phenological development and are marked by rather wide range of phenotypic changes in the vegetative sphere.

Keywords

  • species of the genus L.
  • climatic changes
  • Steppe of Ukraine
  • phenological development
  • leaf morphology
  • assemblage of rootlets
13 Articles
Open Access

Phytosociology and taxonomic notes on some endemic-rich associations of the Naples Gulf

Published Online: 12 Feb 2022
Page range: 1 - 14

Abstract

Abstract

The Gulf of Naples is an important centre of endemism, well known from the floristic point of view, but much less from the phytosociological one. In this paper we investigated the non-forest vegetation focusing on communities rich in endemics. We described two communities as new: Eryngio amethystini-Santolinetum neapolitanae for the garrigues on limestone, Globulario neapolitanae-Loniceretum stabianae for the vegetation on dolomitic rocks, both from the Lattari mountains, and we extend the area of Crithmo maritimi-Limonietum cumani for the vegetation on volcanic rocks and rarely on limestones along the coast, which was known for a few localities. The syntaxonomical position and the phytogeographical context of these communities are discussed. A few taxonomic notes are added on rare or interesting species retrieved in the course of the enquiry.

Keywords

  • Chasmophyte
  • Endemic dolomite
  • Phytogeography
  • Phytosociology
  • Scrub
  • Southern Italy
Open Access

Dry grasslands on fluvial terraces of the middle reaches of river Piave in the North East Italy

Published Online: 12 Feb 2022
Page range: 15 - 40

Abstract

Abstract

Dry grassland vegetation on fluvial terraces along middle reaches of river Piave and river Brenta in Northeastern high Po plain were investigated through a phytosociological approach. Comparisons with ecologically analogous communities described from neighbouring territories lead to the description of a new association belonging to Centaureion dichroanthae alliance: Astragalo onobrychidis-Koelerietum pyramidatae. Residual fragments of Chrysopogon gryllus-dominated grassland on slighly deeper soils are refered to Chamaecytiso hirsuti-Chrysopogonetum grylli.

Keywords

  • Astragalo onobrychidis-Koelerietum pyramidatae
  • Chamaecytiso hirsuti-Chrysopogonetum grylli
  • Po plain
  • river Brenta
  • Scorzoneretalia villosae
  • Veneto
Open Access

Contribution to the knowledge of the non-calcareous grasslands of the Monti Sibillini National Park (central Italy): coenological structure, syntaxonomy, ecology, and floristic aspects

Published Online: 12 Feb 2022
Page range: 41 - 72

Abstract

Abstract

This study provides the first contribution to the knowledge of the non-calcareous grasslands of the arenaceous sector of the Monti Sibillini National Park (central Italy). We conducted 55 relevés using the Braun-Blanquet phytosociological method and analysed the ecology of plant communities by Redundancy analysis using topographic variables and Ellenberg Indicator Values as predictors. We identified nine plant communities, belonging to four classes. Communities of Calluno-Ulicetea and Nardetea strictae were found on acidic soils at higher elevations, those of Festuco-Brometea were mainly associated with steeper south-facing slopes, while Molinio-Arrhenatheretea communities were associated with low altitudes and gentle slopes, semi-flat lands, and high soil nutrient and moisture values. We recorded a total of 410 taxa at the species and subspecies level, representing about 20% of the flora of the Monti Sibillini National Park. Some of these are of high conservation interest, e.g. Calluna vulgaris, Genista sagittalis, Juncus capitatus, and Ophioglossum vulgatum. Eight species are new to the flora of Sibillini National Park.

Keywords

  • arenaceous substrates
  • flora of conservation interest
  • grasslands
  • plant sociology
Open Access

Comparison of the differences in the composition of ruderal flora between conventional tram tracks and managed green tram tracks in the urban ecosystem of the city of Bratislava

Published Online: 12 Feb 2022
Page range: 73 - 88

Abstract

Abstract

Green infrastructure (GI) brings many benefits to urban ecosystems. Green tram tracks can be considered to be a part of GI. The presented study is focused on the comparison of the species’ frequency and composition between conventional tram tracks and green tram tracks in Bratislava, Slovakia, Central Europe. This comparison also provides an insight into the changes of the flora of tram tracks over time, as we compare the results of the older research with recent research on green tram tracks. The results revealed significant differences in the composition of flora between conventional tram tracks and green tram tracks. In particular, the total number of species has decreased over time, as green tram tracks host fewer spontaneously growing taxa than conventional ones. The frequency of occurrence of archaeophytes and neophytes has decreased on the strict rail yard while on the tracksides it has increased. Green tram tracks deliver positive features to ecosystems, but may also have negative aspects because they present a pool of alien, potentially invasive plants.

Keywords

  • Central Europe
  • diversity
  • green infrastructure
  • invasive alien species
  • landscape planning
  • neophytes
Open Access

Relationships between vegetation of Macedonian pine (Pinus peuce Griseb.) and different types of soils on which it develops

Published Online: 12 Feb 2022
Page range: 89 - 106

Abstract

Abstract

This paper deals with relationships between vegetation of Macedonian pine (Pinus peuce) and soils developed on different parent materials on the territory of North Macedonia. We analysed the floristic composition at localities on limestone, on scree of dolomite marble and on scree of silicate. On limestone and scree of dolomite marble, rendzinas on hard limestone and dolomite have developed, and on silicate parent material brown forest soils. The vegetation was sampled according to the Braun-Blanquet approach. DCA and indicator values were used for ecological interpretation of the vegetation patterns. The mechanical and chemical properties of soil and textural classes were also processed. An evident increased presence of carbonates in the soil of scree of dolomite marble on Nidže Mountain was observed, unlike that on Shar Mountain which has formed on typical limestone. Although it is a forest community dominated by the same species, differences between the massifs, the precipitation regime, geology, differences in soil properties in relation to the appearance of carbonates and pH values, and other factors, result in differences in their floristic composition and are the reason for the distinction between the two groups. On silicate on Nidže Mountain, Macedonian pine forests have also developed on brown forest soils, with a different floristic composition to that of the other group on carbonate (dolomite and limestone).

Keywords

  • vegetation
  • Macedonian pine
  • soil
  • mechanical and chemical properties
  • Ellenberg indicator values
  • Braun-Blanquet approach
Open Access

Natural calcareous Norway spruce woodlands in Slovakia and their syntaxonomical classification

Published Online: 12 Feb 2022
Page range: 107 - 151

Abstract

Abstract

A second version of the syntaxonomical classification of calcareous Norway spruce communities is presented for the region of Slovak Western Carpathians. Recent knowledge on delimitation of natural Norway spruce woodlands in Slovakia is summarized as well. As result, four in Slovakia traditionally recognized associations are distinguished: Seslerio caeruleae-Piceetum on the ecologically most extreme habitats, followed by Cirsio erisithalis-Piceetum (a replacement for pseudonymically used Cortuso matthioli-Piceetum), tall-forb community of Adenostylo alliariae-Piceetum and ca. species-poor low-forb community of Mnio spinosi-Piceetum (syn. Oxalido-Piceetum). Additionally, two new associations are differentiated: Fragario vescae-Piceetum ass. prov. standing between Cirsio-Piceetum and Adenostylo-Piceetum and acidified Hieracio murorum-Piceetum on deeper soils developed over rocks of the Mráznica formation. For nomenclatural reasons, new order Cortuso-Piceetalia is described for species-rich calcicolous communities of the class Vaccinio-Piceetea as well as subordinated new alliance Cortuso matthioli-Piceion for the supramontane calcicolous Norway spruce communities.

Keywords

  • calcareous woodlands
  • forest plant communities
  • nomenclature
  • phytocoenology
  • supramontane woodland
  • syntaxonomy
  • Western Carpathians
Open Access

Quercus ×numidica Trabut (Fagaceae, Quercoideae) and Cynosuro peltierii-Quercetum afaredis Laribi ex El Mokni ass. nov. new taxon and syntaxon to Kroumirian oak forests of Tunisia with remarks on their ecology and conservation

Published Online: 12 Feb 2022
Page range: 153 - 161

Abstract

Abstract

The very little-known Quercus ×numidica Trabut, recently typified and synonymised to Q. ×kabylica Trabut, was found within the Cynosuro peltierii-Quercetum afaredis Laribi ex El Mokni ass. nov. (Quercion suberis Loisel 1971). Both the taxon and the syntaxon are described here for the first time for the oak forests of Kroumiria in Tunisia. The distribution, ecology and field photographs of the new taxon are presented and IUCN Red List assessment is provided in this paper. Threats at the national level are assessed and conservation measures for the taxon are proposed.

Keywords

  • chorology
  • conservation
  • endemism
  • Kroumiria
  • Rosids
Open Access

Vegetation mapping of the Dzharylhach Island (Ukraine)

Published Online: 12 Feb 2022
Page range: 163 - 172

Abstract

Abstract

Dzharylhach Island is the largest one in the Black Sea. It is the part of the “Dzharylhatskyi” National Nature Park, which located in the Southern Ukraine. A 1 : 10000 scale vegetation map of Dzharylhach Island has been developed. The main unit for mapping is a complex of associations. In total 28 of such complexes were identified. The map shows the territorial differentiation of vegetation. It has also been used to reconstruct the island vegetation changes over the past 90 and 20 years. A comparison of cartographic materials revealed that the predominant processes in vegetation cover are halophytization and xerophytization of communities. The most distributed types of communities on the island are aquatic – Zosteretea, halophytic – Festuco-Puccinellietea and psammophytic – Festucetea vaginatae. Due to specific hydrological and soil conditions, the northern spit and shores of the island represent natural vegetation types only.

Keywords

  • vegetation map
  • disappearance of plant communities
  • changes of vegetation
Open Access

Distribution and ecology of wild lettuces Lactuca serriola L. and Lactuca virosa L. in central Chile

Published Online: 12 Feb 2022
Page range: 173 - 186

Abstract

Abstract

Wild lettuces (Lactuca L.) provide valuable genetic resources for crop breeding, but are also significant invasive weeds. We explored the distributions, habitats, and ecological characteristics of populations of wild Lactuca species in central Chile. We documented two species – Lactuca serriola L. (prickly lettuce) and Lactuca virosa L. (opium/bitter lettuce) in 204 localities. These observations indicate that: i) both allochthonous (Euroasian) Lactuca species occur and are able to regenerate in central Chile; ii) L. serriola forms dense populations in urbanized areas; iii) both species can expand along transport corridors to high elevations; iv) the spread of L. virosa and persistence of dense populations in elevations above 2,000 m a.s.l. prove the invasiveness of this species in extreme climates; v) both species may contain novel traits of interest for germplasm conservation.

Keywords

  • allochthonous species
  • elevational limits
  • germplasm conservation
  • opium lettuce
  • plant invasion
  • prickly lettuce
Open Access

A new species for the vascular flora of Algeria: Cyperus eragrostis (Cyperaceae)

Published Online: 12 Feb 2022
Page range: 187 - 195

Abstract

Abstract

This study provides a definition and description of Cyperus eragrostis as a new alien species to Algeria and North African flora. This hemicryptophyte, native to the tropical parts of South America, is recorded for the first time in Jijel eco-complex wetlands in North-East Algeria. Applying the standard phytosociological method we studied the stands in which this alien species grows together with other hygrophilous and ruderal species. The present study improves the knowledge of the Algerian flora and completes the information about the distribution of C. eragrostis reported by the available international literature and public herbaria.

Keywords

  • Algerian flora
  • alien species
  • Cyperaceae
  • naturalized plant
  • wetlands
Open Access

Conservation Assessment of a critically endangered endemic Polygonum samsunicum (Polygonaceae) with emended description from Turkey

Published Online: 12 Feb 2022
Page range: 197 - 209

Abstract

Abstract

Polygonum samsunicum is one of the endemic species from Turkey. Up to now, it has been only known from the type locality (Samsun /Ladik). This research intends to define the global conservation status and strategies of locally distributed endemic P. samsunicum which has been confronted with the danger of extinction due to anthropogenic effects in recent years. In this research, we did extensive field studies and collected all needed data for determining the precise conservation status of P. samsunicum. We reported nine additional populations from Upper Tersakan valley, where the Mediterranean climate is dominant, and the size of populations, altitude, coordinates, habitat types, and the threats it faces in each locality were given. GeoCAT analyses at global levels indicate the grade of occurrence 21.609 km2 and area of occupancy 10.094 km2 and there could be an inferred decline due to habitat loss and fragmentation of the original population, suggesting local endemic species might be classified as CR, based on criteria B1ab (i, ii, iii) + 2ab (i, ii, iii) in the Red List categorization. Its parts are also consumed by local people due to its medicinal features. For in-situ conservation, phenological life history and detailed ecological studies, as well as population monitoring and ex-situ conservation studies should be continued together. Establishing cooperation between universities, research institutes, and local management authorities is strongly needed for long-term monitoring of population size, distribution, overgrazing, and public awareness.

Keywords

  • endemic
  • IUCN assessment
  • species conservation action plan
  • Turkey
Open Access

On the occurrence and naturalization of Amaranthus hypochondriacus (Amaranthaceae) in some European countries, with notes on its climatic features

Published Online: 12 Feb 2022
Page range: 211 - 222

Abstract

Abstract

The occurrence and invasion status of Amaranthus hypochondriacus in Belarus, Estonia, Italy, the Netherlands, and the North Caucasus were discussed. For Italy, we change the status from casual to naturalized based on living populations which are able to sustain themselves for 5 and over 20 years. Concerning the other countries, we clarified the invasion status of the species (inconsistently reported in literature) indicating it as a casual alien in Belarus, Estonia, and the North Caucasus and naturalized in the Netherlands. Climatic data of the European stations in which Amaranthus hypochondriacus was found were compared with those referring to the native distribution area (Mexico and southeastern regions of the US). The occurrence of the species in Europe appears to be facilitated by the temperate climate (Dutch and Italian localities), which also characterizes the native distribution area (N-America). The occurrence of the species in Estonia, the Netherlands, and the North Caucasus is interesting. In fact, although the types of climates (“Cold, Dfb” and “Temperate, Cfb”) occur in America (northeastern US and central Mexico), there are some differences in precipitation and temperature values, i.e. lower mean precipitation [644.1 mm (Estonia) vs. 1119 mm (N-America); climate Dfb] and lower mean temperature [9.7–11.1 °C (Netherlands and North Caucasus) vs. 15.3 °C (Mexico); climate Cfb].

Keywords

  • Europe
  • new record
  • status of naturalization
Open Access

Features of development of species of the genus Veronica L. in the conditions of steppe zone of Ukraine

Published Online: 12 Feb 2022
Page range: 223 - 233

Abstract

Abstract

The paper deals with peculiar features of development of the species Veronica L. in the conditions of the steppe zone of Ukraine (central part of the country). Under the action of climatic changes occurring for the last 20 years, the species began to grow 6–14 days earlier and increased the vegetation period by 15–25 days. Under the effect of extreme growing conditions (hot weather and drought) decrease in the area of the leaf blade by almost 2 times was recorded in V. prostrata and V. incana. Length and width of the leaf in V. prostrata and V. incana decreased by 20–30%, but in V. austriaca ssp. teucrium a decrease was observed for the leaf width only while its length increased by 17%. Analysis of correlation of climatic factors (air temperature, precipitation amount) to the morphometric parameters of the leaf during seasonal development showed greater dependence of their value on the air temperature, which was confirmed by the inverse correlation coefficients (r = -0.55–-0.66). In the unfavorable growing conditions, the features of formation of the underground part of species are manifested in the inhibited development of underground shoots (by 80–85%) and stimulation of branching and increase in the length of thin sucking roots (1.5 times). Studied species of the genus Veronica in the climatic conditions of the steppe zone of Ukraine go through all stages of phenological development and are marked by rather wide range of phenotypic changes in the vegetative sphere.

Keywords

  • species of the genus L.
  • climatic changes
  • Steppe of Ukraine
  • phenological development
  • leaf morphology
  • assemblage of rootlets

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