Risk Assessment of Invasive Alien Plant Species

2021 ◽  
pp. 7-10
Author(s):  
H.O.W. Peiris ◽  
S. Chakraverty ◽  
S.S.N. Perera ◽  
S.M.W. Ranwala
Keyword(s):  
Risk Assessment ◽  
Plant Species ◽  
Alien Plant Species ◽  
Alien Plant ◽  
Invasive Alien Plant

Development of a mathematical model to evaluate the rate of aggregate risk of invasive alien plant species: Fuzzy risk assessment approach

2018 ◽  
Vol 11 (04) ◽  
pp. 1850049 ◽  
Author(s):  
H. O. W. Peiris ◽  
S. S. N. Perera ◽  
S. Chakraverty ◽  
S. M. W. Ranwala
Keyword(s):  
Risk Factors ◽  
Risk Assessment ◽  
Plant Species ◽  
Tracking System ◽  
Weighted Averaging ◽  
Alien Plant Species ◽  
Alien Plant ◽  
Invasive Alien Plant ◽  
Aggregate Risk ◽  
Improved Model

This study presents a novel approach to evaluate the rate of aggregate risk of Invasive Alien Plant Species. Using risk values and grade of importance of weights of risk factors which may reflect invasiveness of plant species are considered. We use Linguistic Ordered Weighted Averaging operator to evaluate the grade of important of weights. Since the risk values and important weights are identified from two different linguistic term sets, fuzzy set theory techniques were used to combine the two sets. The rates obtained from the model were compared with NRA risk levels and the model was validated with data from known and non-invasive species. The model is improved by weighting the risk values of risk factors. The improved model produced significant results and resulted a better tracking system for identifying potential invaders than the conventional risk assessment.

scholarly journals Plant‐microbe‐herbivore interactions in invasive and non‐invasive alien plant species

2013 ◽  
Vol 27 (2) ◽  
pp. 498-508 ◽  
Author(s):  
Anne Kempel ◽  
Patrick Nater ◽  
Markus Fischer ◽  
Mark Kleunen
Keyword(s):  
Plant Species ◽  
Alien Plant Species ◽  
Alien Plant ◽  
Invasive Alien Plant ◽  
Non Invasive ◽  
Herbivore Interactions

scholarly journals Modeling invasive alien plant species in river systems: Interaction with native ecosystem engineers and effects on hydro-morphodynamic processes

2017 ◽  
Vol 53 (8) ◽  
pp. 6945-6969 ◽  
Author(s):  
M. van Oorschot ◽  
M. G. Kleinhans ◽  
G. W. Geerling ◽  
G. Egger ◽  
R. S. E. W. Leuven ◽  
...  
Keyword(s):  
Plant Species ◽  
Ecosystem Engineers ◽  
Alien Plant Species ◽  
River Systems ◽  
Alien Plant ◽  
Invasive Alien Plant

scholarly journals Assessment of the Potential of Introduction, Establishment and Further Spread of Invasive Alien Plant Species of European Union Concern in Lithuania

Botanica ◽  
2018 ◽  
Vol 24 (1) ◽  
pp. 37-48 ◽  
Author(s):  
Zigmantas Gudžinskas ◽  
Egidijus Žalneravičius ◽  
Lukas Petrulaitis
Keyword(s):  
Invasive Species ◽  
European Union ◽  
Plant Species ◽  
Alien Plant Species ◽  
Myriophyllum Aquaticum ◽  
Impatiens Glandulifera ◽  
Alien Plant ◽  
Invasive Alien Plant ◽  
Heracleum Mantegazzianum ◽  
Pennisetum Setaceum

AbstractThe list of invasive alien species of European Union concern currently includes 23 plant species. The aim of this study was to assess the potential and importance of introduction pathways for invasive alien plant species in Lithuania, to estimate probability of their establishment and further spread in the country. Analysis of all available information revealed that three species (Asclepias syriaca,Heracleum sosnowskyiandImpatiens glandulifera) currently occur in Lithuania and the latter two are widespread invasive species in the country. The remaining 20 plant species have not been registered in the wild in Lithuania so far. Four of these,Gunnera tinctoria,Lysichiton americanus,Myriophyllum aquaticumandPennisetum setaceum, are occasionally cultivated in gardens or other outdoor areas, and six species, e.g.Cabomba caroliniana,Eichhornia crassipes, Lagarosiphon major, are cultivated in aquaria or other indoor spaces. Naturalization of seven species is unlikely in the country, whereas naturalization of 13 species (Lysichiton americanus,Myriophyllum aquaticum,Pennisetum setaceum, etc.) is plausible. Five of the analysed and still not recorded species are recognized as potentially invasive in Lithuania; the invasion of five species is plausible and that of 10 species is unlikely. The most important pathway of introduction of the analysed species is ornamental gardening. Three species that have not been recorded in Lithuania, but occur in the neighbouring regions of Europe (Elodea nuttallii,Heracleum mantegazzianum,Heracleum persicum) can enter the country by natural means. Importance of permanent studies and surveys on alien plants aiming to ensure early detection and eradication of invasive species is discussed.

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