scholarly journals Transformer species in the flora of the Starobilsk grass-meadow steppe (Ukraine)

2015 ◽  
Vol 40 (1) ◽  
pp. 49-58 ◽  
Author(s):  
Oksana O. Kucher
Keyword(s):  
Alien Species ◽  
Plant Communities ◽  
Vascular Plants ◽  
Alien Plants ◽  
Meadow Steppe ◽  
Check List ◽  
Distribution Maps ◽  
Degree Of Naturalization ◽  
Grass Meadow

Abstract The results of an investigation of alien species that change the character, condition, form or nature of ecosystems over large areas (transformer species) in the flora of the Starobilsk grass-meadow steppe are presented. The check-list of alien plants includes over 386 species of vascular plants, of which 28 are invasive and 6 are transformer species. In this study, the data on the first records of alien species, their distribution history, ecology, occurrence in different plant communities and degree of naturalization were compiled. The distribution maps of transformer species are provided.

scholarly journals Invasive species in the flora of the Starobilsk grass-meadow steppe (Ukraine)

2015 ◽  
Vol 3 (2) ◽  
pp. 11-22
Author(s):  
Oksana O. Kucher
Keyword(s):  
Invasive Species ◽  
Invasive Plants ◽  
Vascular Plants ◽  
Life Forms ◽  
Meadow Steppe ◽  
Alien Plant ◽  
The North ◽  
Group I ◽  
Degree Of Naturalization ◽  
Grass Meadow

AbstractThe results of an investigation of the invasive species in the flora of the Starobilsk grass-meadow steppe are presented. Check-list of alien plant has over 386 species of vascular plants of which 28 species are invasive. We have identified 6 transformer species from the invasive plants. We aggregate data on the entry, distribution history, ecology, occurrence in different plant communities, degree of their naturalization and the habitats where they occur. The leading families of invasive species are: Asteraceae. The basis for this group is presented by origin from the North America and the Mediterranean. With respect to the time of immigration, most of them are kenophytes. By the method of introduction, ksenophytes are dominated; according to the degree of naturalization epoecophytes and agriophytes dominate in this group. With regard to the characteristics of life forms, half of invasive species are terophytes. The vast majority of plants are heliophytes and xeromesophytes. Most species are found in biotopes group I: Cultivated agricultural biotopes; least of all species found in biotopes group F: Biotopes dominated by chamephytes and nanophanerophytes. Only 3 species found in biotopes group F: Biotopes dominated by chamephytesand nanophanerophytes. The maps of distribution of 28 invasive species are provided. Most of the species marked dispersed in more than 30 squares.

Alien species in the vegetation cover of the Park- Monument Of Landscape Art of Local Importance «Park «Zhovtnevyі» Chernivtsi City

2019 ◽  
Vol 11 (2) ◽  
pp. 228-242
Author(s):  
Alla Tokaryuk
Keyword(s):  
Alien Species ◽  
Plant Communities ◽  
Invasive Plant ◽  
Alien Plants ◽  
Deciduous Forests ◽  
Invasive Plant Species ◽  
Natural Plant ◽  
Landscape Art ◽  
Highly Active ◽  
Degree Of Naturalization

This study presents results of ecological-coenotic and biotopic analysis of alien species in the park monument of landscape art of local importance «Zhovtnevyi» (Сhernivtsi city). The forty-six alien species that formed quite dense and numerical populations, belonging to 9 associations, 8 alliances, 8 orders, 7 vegetation classes were identified in the park. Coenoses of the park with the participation of alien plants are mezofitni, hemihidrokontrastofilni, subatsydofilni, semievtrofni, akarbonatofilni, nitrofilni, hemiaerofobni. The main alien plants biotopes in the park are synanthropic, forest (anthropogenic deciduous forests), and ruderalized littoral and herbaceous biotopes. Among the alien plants, according to the time of introduction, kenophytes are predominate, according to the origin, North American, Mediterranean and Mediterranean-Iranian-Turanian species are prevail. According to the degree of naturalization – epecophytes. 16 Species of the park belongs to the group of highly active invasive plant species of Ukraine; 10 species dominate in plant communities of synanthropic biotopes. 5 species are rooted in semi-natural, sometimes natural plant communities, occupy a specific niche, or are constantly renewed in them; 6 species form new plant communities; 5 species are transformers. The activity of alien plants spreading in the park biotopes was analyzed and established that the broadest biotopic amplitude belongs to the Phalacroloma annuum, which is distributed in the seven park's biotopes; 2 species are distributed in five biotopes; 4 – in four and three biotopes; 11 species – in two biotopes; 24 species in one biotope. It has been established that the park's alien plants can easily and quickly spread and inhabit large areas of park cultural phytocenoses, are able to form numerous, dense populations, new plant communities and transform the park's semi-natural biotopes.

scholarly journals Alien (invasive) vascular plants in Slovakia – a story of successful plant immigrants

2021 ◽  
Vol 9 (4) ◽  
pp. 23-31
Author(s):  
Jana Májeková ◽  
Ivan Jarolímek ◽  
Marica Zaliberová ◽  
Jana Medvecká
Keyword(s):  
Central Europe ◽  
Plant Communities ◽  
Vascular Plants ◽  
Plant Invasions ◽  
Alien Plants ◽  
History Of Research ◽  
Alien Flora ◽  
First Occurrence ◽  
In The Wild ◽  
History Of

Abstract This article summarises the history of research into alien plants and plant communities in Slovakia (Central Europe). Earlier periods are reviewed briefly with reference to literature sources dealing with those periods more comprehensively. A milestone in the research was the publication of the Inventory of the alien flora of Slovakia in 2012 with a complete list of alien vascular plants. The last ten years are discussed more extensively in the article in four sections devoted to i) newly found alien plants, ii) distribution and habitat relations, iii) plant invasions, iv) citizen science based on the comprehensive excerption of literature sources. A list of 51 newly published alien taxa within the last ten years is also included with information on the year of their first occurrence in the wild in Slovakia.

scholarly journals New and rare alien species of vascular plants in the Primorye Territory

Turczaninowia ◽  
2021 ◽  
Vol 24 (4) ◽  
pp. 186-201
Author(s):  
Zoya V. Kozhevnikova
Keyword(s):  
New Species ◽  
Alien Species ◽  
Vascular Plants ◽  
Russian Far East ◽  
Far East ◽  
Alien Plants ◽  
Adventive Species ◽  
Herbarium Collections ◽  
The Russian Far East

The article provides information on twelve new species of alien plants for the flora of the Primorye Territory, assesses the prospects for their further settlement. Data on new and confirmed localities of the adventive species of vascular plants rare for the regional flora are also provided, including the growth of Myosoton aquaticum confirmed by herbarium collections on the territory of the Russian Far East for a number of years in the only location.

Synanthropization of forest and shrub florocomplexes of the Middle Cis-Dnipro Region (Ukraine)

2020 ◽  
Vol 12 (2) ◽  
pp. 263-278
Author(s):  
M Fedoronchuk ◽  
V Protopopova ◽  
M Shevera ◽  
V Shevchyk ◽  
V Dzhuran ◽  
...  
Keyword(s):  
Plant Communities ◽  
Vascular Plants ◽  
Floristic Composition ◽  
Life Forms ◽  
Anthropogenic Influences ◽  
Number Of Species ◽  
Degree Of Naturalization ◽  
Impatiens Parviflora ◽  
Characteristic Species ◽  
High Degree

The information about the modern state synanthropization of forest and schrub floristic complexes of the Middle Cis-Dnipro Region (Ukraine) is generalized. The studies complexes recently have been significantly affected by anthropogenic influences and its consequences have led to a change in their floristic composition. The synanthropic fraction of the flora of studies floristic complexes is represent by 262 species of vascular plants, incl. 100 apophytes and 162 aliens. The results of fractional and structural analysis is presented. In the apophytic fraction, the largest number of species belongs to the families Asteraceae (23 species) and Caryophyllaceae (15); in this group are prevail: in the life forms spectra (according to K. Raunkier) – hemicryptophytes (52 sp.); in the hydromorphes spectra – xeromesophytes (36) and meso-xerophytes (32); according to the degree of adaptation of species to transformed ecotops – evapophytes (41) and hemiapophytes (38); by coenotic peculiarity – meadow (35). In the alien fraction, the largest number of species belong to the families Asteraceae (25) and Rosaceae (15); in this group are dominated by: species of North American (44) and Mediterranean (37) origin; according to the degree of naturalization – epoecophytes (64); in the life forms spectra – therophytes (54); in the hydromorphes spectra – mesophytes (75) and xeromesophytes (67). Annotation list of synanthropic fraction species, as well as apophytic and alien, is presented. A separate list of species of the forest and schrub complexes (46), which are able to extend to the transformed ecotopes outside the forest coenoses is presented. The predominance of adventization process over apophytization indicates a significant disruption of the structure of many plant communities. In the alien fraction a high percentage of species tree is observated. The most species as well as of apophytic and alien fractions of the studies complexes in the Region are characterized by high degree of naturalization and active and mass distribution. Some alien species, e.g. Amorpha fruticose, Acer negundo, and Impatiens parviflora etc. in the Region are transformer species, e.g., A. fruticosa is a characteristic species of F1.11 and G 1.112 biotopes; A. negundo dominates in coenosis of G1.35 biotope and formed of plant community in І4.111 and І4.12 biotopes, Impatiens parviflora – in G3.11 and G3.12 biotopes.

scholarly journals The alien flora of Sudan and South Sudan: taxonomic and biogeographical composition

2021 ◽  
Author(s):  
Ali Omer ◽  
Maha Kordofani ◽  
Haytham H. Gibreel ◽  
Petr Pyšek ◽  
Mark van Kleunen
Keyword(s):  
Alien Species ◽  
South Sudan ◽  
Plant Invasions ◽  
Life Forms ◽  
Alien Plants ◽  
African Countries ◽  
Alien Flora ◽  
Result Show ◽  
Perennial Herbs ◽  
Disturbed Habitats

AbstractStudies on plant invasions depend on local and regional checklists of the alien flora. However, global overview studies have shown that some regions, including many African countries, remain understudied in this regard. To contribute to filling this gap, here we present the first checklist of alien plants of Sudan and South Sudan (the Sudans). We analysed the taxonomic and geographical composition of the species on this list. Our result show that of the 113 alien species in Sudans (99 in Sudan and 59 in South Sudan), 92 (81.4%) are naturalized and 21 (18.6%) are just casual aliens. The number of naturalized species represent 2.2% of the total flora of the Sudans (4096). The alien species belong to 44 families and 85 genera, and many of them are native to Southern America and Northern America (85.8%). Annual and perennial herbs are the prevailing life forms in the alien flora of the Sudans (68.1%), and, among the casual species, perennial herbs are underrepresented whereas woody tree species are over-represented. Alien plants of the Sudans are mostly used for medicinal and environmental purposes globally. The naturalized plants predominantly occur in man-made disturbed habitats, such as agricultural and ruderal habitats. This first overview of the alien flora of the Sudans should stimulate further research and recording of the alien flora to better understand the drivers and consequences of alien plants in the Sudans.

scholarly journals Checklist of the vascular alien flora of Catalonia (northeastern Iberian Peninsula, Spain)

2019 ◽  
Vol 40 (2) ◽  
pp. 215-242 ◽  
Author(s):  
Pere Aymerich ◽  
Llorenç Sáez
Keyword(s):  
Iberian Peninsula ◽  
Mediterranean Area ◽  
Alien Plants ◽  
Point Of View ◽  
Strong Increase ◽  
Progressive Reduction ◽  
Degree Of Naturalization ◽  
Alien Flora ◽  
Notable Increase ◽  
Invasive Taxa

This is an inventory of the vascular alien flora of Catalonia (northeastern Iberian Peninsula, Spain) updated to 2018, representing 1068 alien taxa in total. 554 (52.0%) out of them are casual and 514 (48.0%) are established. 87 taxa (8.1% of the total number and 16.8 % of those established) show an invasive behaviour. The geographic zone with more alien plants is the most anthropogenic maritime area. However, the differences among regions decrease when the degree of naturalization of taxa increases and the number of invaders is very similar in all sectors. Only 26.2% of the taxa are more or less abundant, while the rest are rare or they have vanished. The alien flora is represented by 115 families, 87 out of them include naturalised species. The most diverse genera are Opuntia (20 taxa), Amaranthus (18 taxa) and Solanum (15 taxa). Most of the alien plants have been introduced since the beginning of the twentieth century (70.7%), with a strong increase since 1970 (50.3% of the total number). Almost two thirds of alien taxa have their origin in Euro-Mediterranean area and America, while 24.6% come from other geographical areas. The taxa originated in cultivation represent 9.5%, whereas spontaneous hybrids only 1.2%. From the temporal point of view, the rate of Euro-Mediterranean taxa shows a progressive reduction parallel to an increase of those of other origins, which have reached 73.2% of introductions during the last 50 years. The most important way of introduction is gardening (58.0%), followed by agriculture and commerce, while forestry is marginal. Invasive taxa mainly come from gardening and trade, but the proportion of the latter that become invasive is higher (6.1% and 15.6%, respectively). Most of the established aliens are annual and perennial forbs, while other biological types are less represented. These two types are also dominant among the invasive alien species, although a notable increase of trees and climbers has been observed recently.

INFLUENCE OF HERACLEUM SOSNOWSKYI MANDEN. ON BIODIVERSITY OF VASCULAR PLANTS OF THE PROTECTED AREA «LIPOVAYA GORA» (PERM)

2020 ◽  
pp. 272-279
Author(s):  
D. N. Tiunov ◽  
◽  
E. G. Efimik ◽  
Keyword(s):  
Plant Species ◽  
Plant Communities ◽  
Protected Area ◽  
Vascular Plants ◽  
Rapid Development ◽  
Projective Cover ◽  
Seed Productivity ◽  
Heracleum Sosnowskyi ◽  
Rapid Spread

The problem of invasion of Sosnowsky hogweed (Heracleum sosnowskyi Manden.) In the Lipovaya Gora SPNA in Perm is considered. A map of distribution of hogweed cenopopulations in the protected area is presented. The results of the influence of the invasion of Sosnovsky hogweed on the biodiversity of vascu-lar plants of some plant communities are presented. It was revealed that the invasion of hogweed into phytocenoses of the Lipovaya Gora protected area leads to a decrease in the biodiversity of vascular plants by about 26.4% (up to 12 plant species). The ways of introduction of cow parsnip into the communities of the protected area are considered. High seed productivity, high projective cover, reaching in some cases 100%, high phytomass, the presence of dormant seeds, rapid development in spring, and high anthropo-genic load on the territory determine the rapid spread of H. sosnowskyi.

scholarly journals Major environmental factors and traits of invasive alien plants determine their spatial distribution: a case study in Korea

2021 ◽  
Vol 45 (1) ◽  
Author(s):  
Minwoo Oh ◽  
Yoonjeong Heo ◽  
Eun Ju Lee ◽  
Hyohyemi Lee
Keyword(s):  
Environmental Factors ◽  
Alien Species ◽  
Plant Species ◽  
Functional Traits ◽  
Invasive Plants ◽  
Alien Plants ◽  
Summer Temperature ◽  
Alien Plant Species ◽  
Alien Plant ◽  
Cold Spots

Abstract Background As trade increases, the influx of various alien species and their spread to new regions are prevalent, making them a general problem globally. Anthropogenic activities and climate change have led to alien species becoming distributed beyond their native range. As a result, alien species can be easily found anywhere, with the density of individuals varying across locations. The prevalent distribution of alien species adversely affects invaded ecosystems; thus, strategic management plans must be established to control them effectively. To this end, this study evaluated hotspots and cold-spots in the degree of distribution of invasive alien plant species, and major environmental factors related to hot spots were identified. We analyzed 10,287 distribution points of 126 species of alien plant species collected through a national survey of alien species using the hierarchical model of species communities (HMSC) framework. Results The explanatory and fourfold cross-validation predictive power of the model were 0.91 and 0.75 as area under the curve (AUC) values, respectively. Hotspots of invasive plants were found in the Seoul metropolitan area, Daegu metropolitan city, Chungcheongbuk-do Province, southwest shore, and Jeju Island. Hotspots were generally found where the highest maximum summer temperature, winter precipitation, and road density were observed. In contrast, seasonality in temperature, annual temperature range, precipitation during summer, and distance to rivers and the sea were negatively correlated to hotspots. The model showed that functional traits accounted for 55% of the variance explained by environmental factors. Species with a higher specific leaf area were found where temperature seasonality was low. Taller species were associated with a larger annual temperature range. Heavier seed mass was associated with a maximum summer temperature > 29 °C. Conclusions This study showed that hotspots contained 2.1 times more alien plants on average than cold-spots. Hotspots of invasive plants tended to appear under less stressful climate conditions, such as low fluctuations in temperature and precipitation. In addition, disturbance by anthropogenic factors and water flow positively affected hotspots. These results were consistent with previous reports on the ruderal and competitive strategies of invasive plants, not the stress-tolerant strategy. Our results supported that the functional traits of alien plants are closely related to the ecological strategies of plants by shaping the response of species to various environmental filters. Therefore, to control alien plants effectively, the occurrence of disturbed sites where alien plants can grow in large quantities should be minimized, and the waterfront of rivers must be managed.

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