scholarly journals An Annotated and Updated Checklist of the Hungarian Dendroflora

2021 ◽  
Vol 63 (3-4) ◽  
pp. 227-284
Author(s):  
D. Bartha
Keyword(s):  
Alien Species ◽  
Residence Time ◽  
Dwarf Shrub ◽  
Natural Origin ◽  
Early Stages ◽  
Invasive Status ◽  
Epiphyte Species

The checklist includes tree, shrub, dwarf shrub, woody liana and epiphyte species that occur or have occurred in Hungary except the settlements and other intensively utilised objects. 437 dendrotaxa were included and evaluated in this list. This means 281 species, 22 subspecies, 128 nothospecies and 6 nothosubspecies. Based on the indigenat, 260 native, 92 alien and 9 cryptogenic dendrotaxa live in Hungary, furthermore 54 cultivated dendrotaxa and 22 dendrotaxa with questionable occurrence. Analysing the invasive status of alien species, 19 invasive or being in the early stages of invasion, 12 naturalised and 61 casual dendrotaxa can be distinguished. According to residence time status, the number of archaeophytes is 16 and that of neophytes is 76. Of the 260 native dendrotaxa, 9 were extinct or presumably extinct. 44 dendrotaxa are considered to be proven endemic, and there are 8 subendemic. Of the 134 nothotaxa on the list, 14 are artificial and 120 are of natural origin.

Preliminary Data on Alien Flora from Oltenia – Romania

2013 ◽  
Vol 40 (1) ◽  
pp. 33-42
Author(s):  
Daniel Răduţoiu ◽  
Ion Stan
Keyword(s):  
Alien Species ◽  
Plant Species ◽  
Residence Time ◽  
Preliminary Data ◽  
Life Form ◽  
Alien Plant Species ◽  
Alien Plant ◽  
Vascular Flora ◽  
Alien Flora ◽  
Invasive Status

Abstract This paper presents the list of alien plant species from Oltenia (Romania). For each taxon we mentioned and analysed the life form, the invasive status and the residence time. The collected and presented data highlight the expansion of the area of some alien species not mentioned previously in this part of the country and also the presence of a new subspontaneous species in the vascular flora of Romania, namely Lagurus ovatus.

scholarly journals Introducing the Global Register of Introduced and Invasive Species: challenges with classification

2018 ◽  
Vol 2 ◽  
pp. e25306
Author(s):  
Shyama Pagad
Keyword(s):  
Invasive Species ◽  
Alien Species ◽  
Alien Invasive Species ◽  
Validation And Verification ◽  
The World ◽  
Invasive Status

The Global Register of Introduced and Invasive Species (GRIIS) presents annotated country checklists of introduced and invasive species. Annotations include higher taxonomy of the species, synonyms, environment/system in which the species occurs, and its biological status in that country. Invasiveness is classified by evidenced impact in that country. Draft country checklists are subjected to a process of validation and verification by networks of country experts. Challenges encountered across the world include confusion with alien/invasive species terminology, classification of the ‘invasive’ status of an alien species and issues with taxonomic synonyms.

scholarly journals ANALYSIS OF THE ALIEN FLORA OF DNIPROPETROVSK PROVINCE

2016 ◽  
Vol 6 (3) ◽  
pp. 419-429 ◽  
Author(s):  
B. Baranoski ◽  
N. Khromykh ◽  
L. Karmyzova ◽  
I. Ivanko ◽  
Y. Lykholat
Keyword(s):  
Life History ◽  
Alien Species ◽  
Plant Invasion ◽  
Species Number ◽  
Positive Trend ◽  
Species Status ◽  
Anthropogenic Transformation ◽  
Alien Flora ◽  
Invasive Status ◽  
Total Species

<p>Plant invasion in the Northern Steppe Dnieper has a long history complicated by excessive anthropogenic transformation of territory. Alien species status, origin areas, life history, and invasive tendency of alien species in Dnipropetrovsk region were investigated. The presence of 286 alien species of 61 families was registered. Some 7 families had the greatest species diversity (156 alien species that was 55% of total species number); 30 families were represented by 2–9 alien species, and 24 families contained only 1 alien species. So, the current proportion of the alien species was almost 17% in the regional flora. Archaeophytes consist of 40% of the total alien species, while neophytes had more than 60%. The proportion of naturalized species amounted 58% from alien species, whereas the share of casual species was 42%. The greatest abundance of alien species was typical for <em>Brassicaceae</em>, <em>Asterasea</em>, and <em>Poaceae </em>(14, 13, and 9% of the total species number). We proved invasive status of 28 species and positive trend regard alien species ratio for last years. </p>

scholarly journals Invasive Status of Tarebia Granifera Based on Density of Population in River of Gunung Sejuk Village, South Buton Regency

AQUASAINS ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 875
Author(s):  
LM. Junaidin Sirza ◽  
Muhammad Fajar Purnama ◽  
Khoirul Anwar ◽  
Salwiyah . ◽  
Abdullah .
Keyword(s):  
Population Density ◽  
Alien Species ◽  
Random Sampling ◽  
Invasive Alien Species ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Invasive Status ◽  
Density Analysis ◽  
Tarebia Granifera

This research was conducted from May to August 2020, located in the Wandoke Watershed, Gunung Sejuk Village, South Buton Regency. This study aims to analyze the invasive status of the alien species Tarebia granifera based on the perspective of its population density in the river of Gunung Sejuk village. This research is intended to examine the dominance of T. granifera species to local gastropod commodities in the typical habitats and niches of the Wandoke river. Determination of the station or location of the observation begins with a preliminary survey, making it easier to select and determine research stations. Determination of research stations using purposive sampling technique or method of designating stations deliberately, based on the presence of invasive alien species populations of T. granifera and T. granifera sampling using simple random sampling or T. granifera sampling is done randomly in a square transect measuring 100 m2 , using a quadratic transect measuring 1 m2, with the assumption that each point in the transect measuring 100 m2 has homogeneous conditions. The population density of T. granifera at each station in the months of May - August (Spatial and Temporal) shows the size is not much different, where the density range is 21 ind/m2- 43.33 ind/m2. The results of measurement and population density analysis of T. granifera in the waters of the Wandoke river, Gunung Sejuk village is the massive empirical evidence of the invasive pattern of the thiaridae snail.

scholarly journals Alien species in the Finnish weed flora

2008 ◽  
Vol 20 (1) ◽  
pp. 86 ◽  
Author(s):  
T. HYVÖNEN ◽  
H. JALLI
Keyword(s):  
Literature Review ◽  
Alien Species ◽  
Residence Time ◽  
Distribution Patterns ◽  
Invasion Process ◽  
Weed Species ◽  
Climate Zones ◽  
Weed Flora ◽  
Alien Weed ◽  
Species Occupancy

The present study aimed at assessing the invasion of alien weed species in Finland based on a review of their occurrence in the Finnish weed flora. The evaluation was conducted for the three phases of the invasion process, i.e. introduction, naturalization and invasion. The literature review revealed that 815 alien weed species occur in Finland of which 314 are regarded as naturalized. Based on their occurrence in different climate zones, the risk of naturalization of new harmful alien weed species was deemed low for those species not currently found in Finland, but higher for species occurring as casual aliens in Finland. In the latter group, 10 species of concern were detected. Exploration of the distribution patterns of naturalized species within Finland revealed species occupancy to be dependent on the residence time of the species. Established neophytes can be expected to extend their ranges and to increase occupation of agricultural habitats in the future.;

scholarly journals Manihot Esculenta (Euphorbiaceae), A New Alien Species In Italy

Hacquetia ◽  
2014 ◽  
Vol 13 (2) ◽  
pp. 355-357 ◽  
Author(s):  
Adriano Stinca ◽  
Giuseppe D’Auria ◽  
Riccardo Motti
Keyword(s):  
South America ◽  
Alien Species ◽  
Manihot Esculenta ◽  
Manihot Esculenta Crantz ◽  
Invasive Status ◽  
First Time

Abstract In the present work the presence of Manihot esculenta Crantz is reported for the first time for Italy and Europe, a neophyte native to South America: ecology and invasive status are presented.

Biotic homogenization of Central European urban floras depends on residence time of alien species and habitat types

2012 ◽  
Vol 145 (1) ◽  
pp. 179-184 ◽  
Author(s):  
Zdeňka Lososová ◽  
Milan Chytrý ◽  
Lubomír Tichý ◽  
Jiří Danihelka ◽  
Karel Fajmon ◽  
...  
Keyword(s):  
Alien Species ◽  
Residence Time ◽  
Biotic Homogenization ◽  
Habitat Types ◽  
Central European ◽  
Urban Floras

scholarly journals Alien fish, amphibian and reptile species in Romania and their invasive status: a review with new data

2021 ◽  
Vol 64 (1) ◽  
pp. 131-186
Author(s):  
Alexandru Iftime ◽  
Oana Iftime
Keyword(s):  
Alien Species ◽  
Fish Species ◽  
Perccottus Glenii ◽  
Review Of Literature ◽  
Reptile Species ◽  
Invasive Status ◽  
Alien Fish ◽  
The One ◽  
Alien Fish Species

The paper presents a review of literature data, supplemented with original observations, on the presence, establishment, distribution and invasive status of alien fish, amphibian and reptile species in Romania. Consistent criteria were followed in defining alien species records, establishment and invasive status. From the 48 alien fish species, 1 fish hybrid, 1 amphibian and 18 reptile species recorded, only 16 fishes and 3 reptiles can be regarded as established. Of these we consider the criteria for invasive status as being probably fulfilled by one fish species (Perccottus glenii), and less likely by six more fish species. The presence and the alien status of the one amphibian are debatable. No reptile species can be considered invasive at present.

scholarly journals Changes in presence of alien species in the ruderal vegetation of a representative ecosystem in a major city over 30 years: a case study from Bratislava

2017 ◽  
Vol 86 (1) ◽  
Author(s):  
Alena Rendeková ◽  
Ján Miškovic ◽  
Karol Mičieta ◽  
Michal Hrabovský ◽  
Ivan Jarolímek
Keyword(s):  
Alien Species ◽  
Life Forms ◽  
Ruderal Vegetation ◽  
Percentage Cover ◽  
Fallopia Japonica ◽  
Average Percentage ◽  
The Past ◽  
Invasive Status ◽  
Time Periods ◽  
Invasive Taxa

The study is focused on evaluating changes in the presence of alien species in ruderal vegetation. Two datasets comprising phytosociological relevés of ruderal communities during two time periods within the Bratislava City (in southwestern Slovakia) were analyzed. The old dataset consisted of 387 relevés recorded in the years 1975–1982, and the more recent dataset consisted of 308 relevés from the years 2011–2014. The relevés from both time periods were assigned to phytosociological classes via the same procedure – numerical classification (hierarchical clustering) using HIERCLUS software. The average values of the percentage number and percentage cover of the archaeophytes and neophytes as groups in the earlier and more recent relevés of each class were compared by the main effects ANOVA analysis in the STATISTICA 7.0 software. The proportion of each taxon of archaeophytes and neophytes in both datasets was also calculated. The invasive status, origin, and life forms of alien species in both datasets were compared. In total, both datasets comprised 120 archaeophytes and 71 neophytes. The old dataset contained more archeaophytes than the more recent dataset. On the contrary, the more recent dataset contained more neophytes than the old dataset. In the years 2011–2014, more invasive neophytes were recorded than in the past. The results revealed a statistically significant decrease in the average percentage number of archaeophytes in the classes <em>Stellarietea mediae</em>, <em>Artemisietea vulgaris</em>, and <em>Galio-Urticetea</em>, and a decrease in the average percentage cover of archaeophytes in the class <em>Artemisietea vulgaris</em>, compared to the past. On the contrary, a statistically significant increase in the average percentage number and cover of neophytes in the classes <em>Artemisietea vulgaris</em> and <em>Galio-Urticetea</em> was recorded. Some rare species of archaeophytes were only recorded 30 years ago (e.g., <em>Kickxia elatine</em>, <em>Silene gallica</em>). Furthermore, several species of neophytes (including some invasive taxa, e.g., <em>Fallopia japonica</em>, <em>Helianthus tuberosus</em>, <em>Juncus tenuis</em>) occur only currently in the ruderal vegetation of Bratislava.

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