scholarly journals New Vision on Invasive Alien Plant Management System

2019 ◽  
Vol 23 (2) ◽  
pp. 166-186
Author(s):  
Lauma Zihare ◽  
Indra Muizniece ◽  
Dagnija Blumberga
Keyword(s):  
Invasive Species ◽  
Management System ◽  
Invasive Plant ◽  
National Level ◽  
Economic Losses ◽  
Plant Management ◽  
Alien Plant ◽  
Invasive Alien Plant ◽  
New Vision ◽  
Plant Management System

Abstract Since the creation of the European Union’s (EU) Biodiversity Strategy, increased attention has been drawn to the spread of invasive non-native species, their impact on biodiversity, and the economic losses caused. Ensuring compliance with the regulation on the eradication of invasive species requires financial means, therefore a new vision on invasive plant management system is proposed. With a new system, invasive alien plant (IAP) control is ensured as well as a new source of lignocellulosic biomass for product production, that could result in financial gains is presented. This article provides current alien plant situation visualization by Sankey diagram showing invasiveness of alien species and establishment, after which invasive and potentially invasive species are directed further to pre-assessment. A total of 157 invasive plant species are evaluated by multi criteria decision analysis TOPSIS, the case on the national level (Latvia) is presented and a new concept for a IAP management system is provided. The research results and the new concept provide a contribution to policy makers, land owners affected by invasive species and municipalities.

scholarly journals Use of a rapid roadside survey to detect potentially invasive plant species along the Garden Route, South Africa

Koedoe ◽  
2019 ◽  
Vol 61 (1) ◽  
Author(s):  
Johan A. Baard ◽  
Tineke Kraaij
Keyword(s):  
South Africa ◽  
South African ◽  
National Park ◽  
Invasive Plant ◽  
Alien Plants ◽  
Plant Distribution ◽  
Plant Management ◽  
Alien Plant ◽  
Invasive Alien Plant ◽  
Roadside Survey

Early detection of emerging or sleeper weeds and monitoring of alien plant invasions forms the foundation of effective invasive alien plant management. Using a rapid roadside survey technique, we aimed to (1) establish a baseline of alien plant distribution and abundance along roads in the Garden Route, South Africa, and (2) identify priority species (particularly sleeper weeds) and priority areas to inform appropriate management action. We surveyed along 530 km of roads and recorded 109 alien and/or extralimital species across 1942 point locations. Of these, 35 species were considered to be sleeper weeds on account of displaying estimated dispersal distances distinctive of invasive plants and not being listed by the South African Plant Invaders Atlas (SAPIA) or regulated by South African legislation. Roads along natural forest and fynbos vegetation (often within the Garden Route National Park) displayed lower incidences of alien plants than those associated with degraded or transformed land, with roads along farmland associated with the highest incidences of alien plants. Roads in the Southern Cape region had more species and higher densities of alien plants than roads in the Tsitsikamma region, and a few species were exclusive to either.Conservation implications: Our inventory contributed significant new records and range extensions to SAPIA, while the identified sleeper weeds offered suggestions for species that may be considered for regulation under the National Environmental Management: Biodiversity Act of South Africa. We furthermore provided information to facilitate (1) timely management of emerging invasive alien plants, (2) prioritisation of species and areas for management action, and (3) future monitoring of alien plants in the Garden Route National Park and surrounds.

Satellite remote sensing and the management of invasive species

2019 ◽  
pp. 66-78
Author(s):  
Nathalie Pettorelli
Keyword(s):  
Remote Sensing ◽  
Invasive Species ◽  
Plant Species ◽  
Satellite Remote Sensing ◽  
Invasive Plant ◽  
Structural Features ◽  
Control Mechanisms ◽  
Alien Plant ◽  
Invasive Alien Plant ◽  
Direct Tracking

This chapter reviews opportunities for satellite remote sensing approaches to support the management of invasive species, starting by providing clear definitions of what invasive species are, in comparison, for example, with alien or exotic species. It provides an overview of sensors and approaches most relevant to the direct tracking of invasive plant species, and then expands this overview to methodologies and satellite-derived variables that can be used to predict the distribution range of invasive plant and animal species. The contribution demonstrates how satellite remote sensing information can ultimately aid optimisation of control mechanisms to prevent further spread and minimise their impacts. The various case studies introduced in this part of the book are used to discuss a number of key principles, such as the importance of the spatial and spectral configuration for reliably determining the distribution and patch sizes of invasive alien plant species; and the importance of taking into account the ecology as well as the morphological and structural features of the target species when trying to identify suitable remote sensing-based monitoring approaches.

scholarly journals Impact of invasive alien plant species on aquatic biodiversity of Koshi Tappu Wetlands : Ramsar Site, Nepal

2020 ◽  
Vol 30 (2) ◽  
pp. 48-58
Author(s):  
P. Pandey ◽  
D. N. Shah ◽  
R. D. Tachamo-Shah
Keyword(s):  
Water Quality ◽  
Invasive Species ◽  
Plant Species ◽  
Invasive Plant ◽  
Conservation Strategy ◽  
Total Alkalinity ◽  
Fish Diversity ◽  
Alien Plant ◽  
Aquatic Biodiversity ◽  
Invasive Alien Plant

Koshi Tappu Wetlands play a significant role in the conservation of many rare and endangered species of flora and fauna. However, this wetland is threatened by several natural and anthropogenic stressors; among others, invasion by invasive species is the most serious problem. The objective of this study was to prepare an inventory list of wetlands, categorize the wetlands based on the coverage of alien species, identify the problematic aquatic invasive plant species, and assess their impact on water quality and aquatic biodiversity (fish and macroinvertebrates). This study was conducted in winter and spring seasons of 2018. Composite water samples were collected from the wetlands with different covers of invasive species. Macroinvertebrate samples were collected using hand net of 500µm mesh following the habitat specific sampling approach, and fishes were sampled using Cast Net. The analysis of water quality parameters, macroinvertebrates and fishes were performed for different levels of invasion. Altogether, 66 wetlands were documented in the Buffer Zone located in the east of eastern embankment of the KTWR. Out of the total 66 wetlands, 33.33% were found to be non-invaded while 66.67% were found to be invaded by the invasive macrophytes. The invaded wetlands were further subdivided into abundant 'A' (>75% coverage), common 'C' (50-75% coverage) frequent 'F' (25-50%coverage), occasional 'O' (5-25% coverage), and rare 'R' (1-5% coverage) which were found to have occupied 19.69%, 16.67%, 12.12%, 13.63% and 4.50%, respectively, of the invaded wetlands (66.61%). The most problematic invasive species were found to be Eichhornia crassipes and Ipomoea carnea. The dissolved oxygen (DO) decreased while the total alkalinity and free CO2 increased significantly with the increased coverage of invasive macrophytes. The macroinvertebrate diversity was observed high in common and abundant coverage, but the fish diversity was high in the frequent coverage of invasive species. The taxa compositions shifted from “Decapoda” and “Ephemeroptera” to “Odonata” and “Mollusca” in none to abundant coverage of invasive species. The findings of this research are expected to help wetland managers and related stakeholders to understand the level of impact of different coverage of invasive species on wetlands, help to develop the conservation strategy and action plans to mitigate the spread of these invasive species, and wise use of wetlands.

The Biology of Invasive Alien Plants in Canada. 4. Heracleum mantegazzianum Sommier & Levier

2006 ◽  
Vol 86 (2) ◽  
pp. 569-589 ◽  
Author(s):  
Nicholas A. Page ◽  
Ronald E. Wall ◽  
Stephen J. Darbyshire ◽  
Gerald A. Mulligan
Keyword(s):  
British Columbia ◽  
Urban Areas ◽  
Native Species ◽  
Invasive Plant ◽  
Leaf Shape ◽  
Herbarium Specimens ◽  
Natural Ecosystems ◽  
Alien Plant ◽  
Invasive Alien Plant ◽  
Heracleum Mantegazzianum

Heracleum mantegazzianum (giant hogweed) is an invasive alien plant of management concern in southern Canada where it has escaped from horticulture and established and spread in natural, ruderal, and agricultural ecosystems. It poses a threat to natural ecosystems and human health, and is also a weed in agricultural and urban areas. It is a member of the Carrot family (Apiaceae) and is closely related to the native species Heracleum maximum Bartram (cow-parsnip). It is a monocarpic perennial, which generally flowers in its 3rd or 4th year. Large size, leaf shape, dark reddish pigments in patches on stems and petioles, and fruit characteristics readily distinguish H. mantegazzianum from other plants in Canada. It is increasingly common in riparian areas, floodplains, and forest edges in or near urban areas in southwestern British Columbia and southern Ontario. Based on herbarium specimens, H. mantegazzianum was first recorded in Ontario in 1949, British Columbia in 1964, Nova Scotia in 1980, Quebec in 1990, and New Brunswick in 2000. The development of dense stands of H. mantegazzianum can also reduce the richness of native plants. Contact with H. mantegazzianum can cause phytophotodermatitis, a serious skin inflammation caused by UV photo-activation of furanocoumarins present in the sap. Control methods include herbicide application, mechanical cutting, and animal grazing, but strategies to address seed dispersal and re-establishment from dormant seed must also be adopted. Widespread establishment in southern Canada suggests that eradication is unlikely. However, range expansion and rapid population growth can be prevented through strategic management including public education. Key words: Giant hogweed, Heracleum mantegazzianum, Apiaceae, HERMZ, invasive plant, weed biology, furanocoumarins

Integrating knowledge of ecological succession into invasive alien plant management: A case study from Portugal

2020 ◽  
Vol 23 (3) ◽  
pp. 328-339
Author(s):  
Liliana Neto Duarte ◽  
Carlos Pinto Gomes ◽  
Hélia Marchante ◽  
Elizabete Marchante
Keyword(s):  
Ecological Succession ◽  
Plant Management ◽  
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.

scholarly journals Fire regimes in eastern coastal fynbos: Imperatives and thresholds in managing for diversity

Koedoe ◽  
2013 ◽  
Vol 55 (1) ◽  
Author(s):  
Tineke Kraaij ◽  
Richard M. Cowling ◽  
Brian W. Van Wilgen
Keyword(s):  
Fire Ecology ◽  
Large Scale ◽  
Prescribed Burning ◽  
Fire Regime ◽  
Fire Regimes ◽  
Fire Season ◽  
Fire Intensity ◽  
Plant Management ◽  
Alien Plant ◽  
Invasive Alien Plant

Until recently, fire ecology was poorly understood in the eastern coastal region of the Cape Floral Kingdom (CFK), South Africa. Rainfall in the area is aseasonal and temperatures are milder than in the winter-rainfall and drier inland parts of the CFK, with implications for the management of fire regimes. We synthesised the findings of a research programme focused on informing ecologically sound management of fire in eastern coastal fynbos shrublands and explored potential east–west trends at the scales of study area and CFK in terms of fire return interval (FRI) and fire season. FRIs (8–26 years; 1980–2010) were comparable to those elsewhere in the CFK and appeared to be shorter in the eastern Tsitsikamma than in the western Outeniqua halves of the study area. Proteaceae juvenile periods (4–9 years) and post-fire recruitment success suggested that for biodiversity conservation purposes, FRIs should be ≥ 9 years in eastern coastal fynbos. Collectively, findings on the seasonality of actual fires and the seasonality of fire danger weather, lightning and post-fire proteoid recruitment suggested that fires in eastern coastal fynbos are not limited to any particular season. We articulated these findings into ecological thresholds pertaining to the different elements of the fire regime in eastern coastal fynbos, to guide adaptive management of fire in the Garden Route National Park and elsewhere in the region.Conservation implications: Wildfires are likely to remain dominant in eastern coastal fynbos, whilst large-scale implementation of prescribed burning is unattainable. Fires occurring in any season are not a reason for concern, although other constraints remain: the need for sufficient fire intensity, safety requirements, and integration of fire and invasive alien plant management.

scholarly journals Invasive alien plant species of the southern part of the Nowogard Plain (NW Poland)

2011 ◽  
Vol 21 (1) ◽  
pp. 31-38
Author(s):  
Karolina Konopska
Keyword(s):  
Plant Species ◽  
Invasive Plant ◽  
Field Studies ◽  
Invasive Plant Species ◽  
Alien Plant Species ◽  
Impatiens Glandulifera ◽  
Alien Plant ◽  
Reynoutria Japonica ◽  
Invasive Alien Plant ◽  
Nw Poland

Invasive alien plant species of the southern part of the Nowogard Plain (NW Poland)Investigations on the distribution of selected invasive plant species in southern part of the Nowogard Plain were conducted in the vegetation seasons of years 2008-2010. Field studies were based on the cartogram method. The article shows the distribution of twelve selected invasive plant species:Echinocystis lobata, Heracleum sosnowskyi, Impatiens glandulifera, Impatiens parvifora, Padus serotina, Reynoutria japonica, Robinia pseudacacia, Solidago canadensis, Solidago gigantea, Quercus rubra, Rosa rugosaandAcer negundoin the study area.

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