scholarly journals New records of alien plants – Ludwigia peploides (Kunth) P. H. Raven, Reynoutria sachalinensis (F. Schmidt) Nakai and Nicotiana glauca Graham in Croatia

2021 ◽  
Vol 30 (1) ◽  
pp. 27-35
Author(s):  
Nina Vuković ◽  
◽  
Vedran Šegota ◽  
Anja Rimac ◽  
Nikola Koletić ◽  
...  
Keyword(s):  
Alien Species ◽  
Invasive Alien Species ◽  
New Records ◽  
Alien Plants ◽  
River Valley ◽  
Nicotiana Glauca ◽  
National Monitoring ◽  
Reynoutria Sachalinensis ◽  
Existing Data

Invasive alien species Ludwigia peploides, Reynoutria sachalinensis and Nicotiana glauca, currently registered in Croatia with small number of records, were found during fieldwork undertaken mostly through the national monitoring of waters from 2018 to 2020. Ludwigia peploides was previously recorded only once in the River Ilova, the existing data for R. sachalinensis indicate only three confirmed findings, in Čabar, Karlovac and Donja Stubica, while the previous data for N. glauca include several localities in Central and Southern Dalmatia. The new records are as follows: two findings of L. peploides refer to the River Česma (Obedišće and Sišćani); three records of R. sachalinensis refer to Gorski Kotar (Gerovo and Čabar), while N. glauca is newly recorded in the Neretva River Valley (Krvavac) and the island of Krk. Despite their potential invasiveness, all three are still locally naturalized and currently their spread is very slow and limited in Croatia.

scholarly journals Documentation of Invasive Alien Plants Species of Rupandehi District, Western Nepal

2014 ◽  
Vol 2 (2) ◽  
pp. 168-175
Author(s):  
Anant Gopal Singh ◽  
Anil Sharma
Keyword(s):  
Invasive Species ◽  
Nutrient Cycling ◽  
Alien Species ◽  
Invasive Alien Species ◽  
Alien Plants ◽  
Food Crop ◽  
Invasive Alien Plants ◽  
Structure And Functions

Invasive species are non-native to the locality. They have been introduced in any area both accidentally and intentionally. Their introduction undoubtedly modifies the structure and functions of the ecosystem supply and alters the rate of nutrient cycling. Invasive alien species compete with the crop mainly for water, light, and nutrients. During study we have collected fifty-five species which are invasive and alien. They directly affect the productivity of food crop like rice, wheat, maize etc.DOI: http://dx.doi.org/10.3126/ijasbt.v2i2.10370Int J Appl Sci Biotechnol, Vol. 2(2): 168-175 

New records and rare alien species in the flora of the Russian Far East

2018 ◽  
Vol 65 ◽  
pp. 89-102
Author(s):  
Z.V. Kozhevnikova ◽  
◽  
A.E. Kozhevnikov ◽  
Keyword(s):  
Alien Species ◽  
New Records ◽  
Russian Far East ◽  
Far East ◽  
The Russian Far East

scholarly journals Introduction and Spread of the Invasive Alien Species Ageratina altissima in a Disturbed Forest Ecosystem

2021 ◽  
Vol 13 (11) ◽  
pp. 6152
Author(s):  
Eunyoung Kim ◽  
Jaeyong Choi ◽  
Wonkyong Song
Keyword(s):  
Land Use ◽  
South Korea ◽  
Alien Species ◽  
Invasive Alien Species ◽  
Management Policy ◽  
Economic Damage ◽  
Forest Edges ◽  
Forest Interior ◽  
Lower Elevation ◽  
Canopy Area

Invasive alien species (IAS) not only displace nearby indigenous plants and lead to habitat simplification but also cause severe economic damage by invading arable lands. IAS invasion processes involve external forces such as species characteristics, IAS assemblage traits, environmental conditions, and inter-species interactions. In this study, we analyzed the invasion processes associated with the introduction and spread of Ageratina altissima, a representative invasive plant species in South Korea. We investigated 197 vegetation quadrats (2 × 20 m) in regions bordering 47 forests in southern Seoul and Gyeonggi-do, South Korea. A total of 23 environmental variables were considered, which encompassed vegetation, topography, land use, and landscape ecology indices. The model was divided into an edge and an interior model and analyzed using logistic regression and a decision tree (DT) model. The occurrence of Ageratina altissima was confirmed in 61 sites out of a total of 197. According to our analysis, Ageratina altissima easily invaded forest edges with low density. The likelihood of its occurrence increased with lower elevation and gentler slope. In contrast, the spread of Ageratina altissima in the forest interior, especially based on seed spread and permeability, was favored by a lower elevation and gentler slopes. The analysis of Ageratina altissima settlement processes in forest edges coupled with the DT model demonstrated that land characteristics, such as the proximity to urbanized areas and the number of shrub and tree species, play a pivotal role in IAS settlement. In the forest interior, Ageratina altissima did not occur in 68 of the 71 sites where the soil drainage was under 2.5%, and it was confirmed that the tree canopy area had a significant impact on forest spread. Based on these results, it can be assumed that Ageratina altissima has spread in South Korean forests in much the same way as other naturalized species. Therefore, vegetation management strategies for naturalized species should be developed in parallel with land use management policy in regions surrounding forest edges to successfully manage and control Ageratina altissima invasion.

scholarly journals InvasionDB: A genome and gene database of invasive alien species

2021 ◽  
Vol 20 (1) ◽  
pp. 191-200
Author(s):  
Cong HUANG ◽  
Kun LANG ◽  
Wan-qiang QIAN ◽  
Shu-ping WANG ◽  
Xiao-mei CAO ◽  
...  
Keyword(s):  
Alien Species ◽  
Invasive Alien Species ◽  
A Genome ◽  
Gene Database

Invasive Alien Species in Malaysia

2021 ◽  
pp. 151-167
Author(s):  
Ibrahim Faridah‐Hanum ◽  
Abdul Latiff
Keyword(s):  
Alien Species ◽  
Invasive Alien Species

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.

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