scholarly journals BIDENS FRONDOSA (ASTERACEAE), A NEW ALIEN INVASIVE PLANT SPECIES IN THE KURGAN REGION (RUSSIA)

2021 ◽  
Vol 56 ◽  
pp. 53-58
Author(s):  
Dina A RONZHINA ◽  
◽  
Larissa A IVANOVA ◽  
Leonid A IVANOV ◽  
Anatoliy A KHAPUGIN ◽  
...  
Keyword(s):  
Invasive Species ◽  
Western Siberia ◽  
Invasive Plant ◽  
Field Survey ◽  
Invasive Plant Species ◽  
Short Term ◽  
Southwestern Part ◽  
Bidens Frondosa ◽  
First Time ◽  
Term Field

The annual weed Bidens frondosa L. (Asteraceae) has been registered for the first time in the Kurgan Region in 2020 during research on the riverine vegetation of the southwestern part of Western Siberia. This invasive species was found in ten locations along the Iset River banks in the Kurgan Region. We have postulated that the Sverdlovsk Region serves as a source for the B. frondosa invasion into the Kurgan Region along the River Iset. Despite a single short-term field survey, B. frondosa was found in several sites. In the Kurgan Region, this invasive species is characterized by low population density in all plots. Since B. frondosa populations are characterized by much higher density in other regions of European Russia, an increase in the number of locations and density of populations is expected in the Kurgan Region in the future.

scholarly journals Understanding the Environmental Background of an Invasive Plant Species (Asclepias syriaca) for the Future: An Application of LUCAS Field Photographs and Machine Learning Algorithm Methods

Plants ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 593 ◽  
Author(s):  
Péter Szilassi ◽  
Gábor Szatmári ◽  
László Pásztor ◽  
Mátyás Árvai ◽  
József Szatmári ◽  
...  
Keyword(s):  
Machine Learning ◽  
Invasive Species ◽  
European Union ◽  
Land Cover ◽  
Invasive Plant ◽  
Learning Algorithm ◽  
Machine Learning Algorithm ◽  
Invasive Plant Species ◽  
The European Union ◽  
Asclepias Syriaca

For developing global strategies against the dramatic spread of invasive species, we need to identify the geographical, environmental, and socioeconomic factors determining the spatial distribution of invasive species. In our study, we investigated these factors influencing the occurrences of common milkweed (Asclepias syriaca L.), an invasive plant species that is of great concern to the European Union (EU). In a Hungarian study area, we used country-scale soil and climate databases, as well as an EU-scale land cover databases (CORINE) for the analyses. For the abundance data of A. syriaca, we applied the field survey photos from the Land Use and Coverage Area Frame Survey (LUCAS) Land Cover database for the European Union. With machine learning algorithm methods, we quantified the relative weight of the environmental variables on the abundance of common milkweed. According to our findings, soil texture and soil type (sandy soils) were the most important variables determining the occurrence of this species. We could exactly identify the actual land cover types and the recent land cover changes that have a significant role in the occurrence the common milkweed in Europe. We could also show the role of climatic conditions of the study area in the occurrence of this species, and we could prepare the potential distribution map of common milkweed for the study area.

Composting Invasive Plants in the Rio Grande River

2014 ◽  
Vol 7 (3) ◽  
pp. 473-482 ◽  
Author(s):  
Erica J. Meier ◽  
Tina M. Waliczek ◽  
Michael L. Abbott
Keyword(s):  
Invasive Species ◽  
Plant Species ◽  
Large Scale ◽  
Invasive Plant ◽  
Giant Reed ◽  
Invasive Plant Species ◽  
Whole Plant ◽  
Germination And Growth ◽  
Vegetative Propagules ◽  
The U.S

AbstractThe purpose of this study was to determine the effect of whole-plant composting on the viability of seeds and other propagules of the invasive plant species waterhyacinth, waterlettuce, hydrilla, and giant reed while producing a valuable compost product. Invasive species were subjected to preliminary germination and growth tests and oven mortality tests to evaluate whether species distribution was via seeds, vegetative propagules, or both, as well as whether the composting process had the potential, through the high temperatures obtained, to kill seeds and other propagules. Germination and growth tests determined the means by which invasive species spread. Oven tests determined the temperatures at which unscarified and scarified seeds and propagules were rendered inviable. Achieving temperatures of at least 57.2 C was necessary within constructed compost piles to effectively kill the plants without the danger of redistribution. In the field, the study successfully developed a large-scale composting operation using invasive plant species as the primary feedstock. Analysis of field-scale composting showed final materials were within satisfactory to ideal levels for samples analyzed by the U.S. Compost Council's Seal of Testing Assurance Program and were, therefore, a valuable compost product.

scholarly journals Keragaman dan Pengendalian Tumbuhan Invasif di KHDTK Samboja, Kalimantan Timur (Diversity and Management of Invasive Plants in Samboja Research Forest, Kalimantan Timur)

2020 ◽  
Vol 8 (3) ◽  
pp. 351
Author(s):  
Bina Swasta Sitepu
Keyword(s):  
Invasive Species ◽  
Plant Species ◽  
Invasive Plants ◽  
Invasive Plant ◽  
Forest Succession ◽  
Acacia Mangium ◽  
Forest Area ◽  
Primary Forest ◽  
Secondary Forests ◽  
Invasive Plant Species

Historically, and based on the latest conditions, Samboja Research Forest has a fairly high vulnerability to the presence of invasive species that can interfere with ecosystem stability and forest succession. However, data collection and risk assessment of invasive species have not been conducted in the forest area. The study was carried out to support the management of Samboja Research Forest, particularly in controlling invasive species. The study was conducted with exploration techniques in open areas, secondary forests, and primary forests. The density and frequency data of invasive plants were obtained using random plots in secondary and primary forest areas. The results showed the presence of 52 invasive plant species in the Samboja Research Forest area with dominance by shrubs and herbs. Based on plants distribution and density, four crucial invasive plant species in Samboja Research Forest were identified, namely: Acacia mangium, Spathodea campanulata, Miconia crenata, and Piper aduncum. The management of invasive species was carried out in two stages, short term, through manual weeding, and in the long term, with the prevention, eradication, and periodic risk assessment.Keywords: invasive alien species, Kalimantan, eradication, Spathodea campanulata

scholarly journals Herbivory may promote a non-native plant invasion at low but not high latitudes

2019 ◽  
Vol 124 (5) ◽  
pp. 819-827 ◽  
Author(s):  
Xinmin Lu ◽  
Minyan He ◽  
Saichun Tang ◽  
Yuqing Wu ◽  
Xu Shao ◽  
...  
Keyword(s):  
Invasive Species ◽  
Native Species ◽  
Invasive Plant ◽  
Field Survey ◽  
Common Garden ◽  
Middle Latitude ◽  
Plant Invasions ◽  
Alternanthera Philoxeroides ◽  
Native Plant ◽  
Low Latitude

Abstract Background and Aims The strengths of biotic interactions such as herbivory are expected to decrease with increasing latitude for native species. To what extent this applies to invasive species and what the consequences of this variation are for competition among native and invasive species remain unexplored. Here, herbivore impacts on the invasive plant Alternanthera philoxeroides and its competition with the native congener A. sessilis were estimated across latitudes in China. Methods An common garden experiment spanning ten latitudinal degrees was conducted to test how herbivore impacts on A. philoxeroides and A. sessilis, and competition between them change with latitude. In addition, a field survey was conducted from 21°N to 36.8°N to test whether A. philoxeroides invasiveness changes with latitude in nature as a result of variations in herbivory. Key Results In the experiment, A. sessilis cover was significantly higher than A. philoxeroides cover when they competed in the absence of herbivores, but otherwise their cover was comparable at low latitude. However, A. philoxeroides cover was always higher on average than A. sessilis cover at middle latitude. At high latitude, only A. sessilis emerged in the second year. Herbivore abundance decreased with latitude and A. philoxeroides emerged earlier than A. sessilis at middle latitude. In the field survey, the ratio of A. philoxeroides to A. sessilis cover was hump shaped with latitude. Conclusion These results indicate that herbivory may promote A. philoxeroides invasion only at low latitude by altering the outcome of competition in favour of the invader and point to the importance of other factors, such as earlier emergence, in A. philoxeroides invasion at higher latitudes. These results suggest that the key factors promoting plant invasions might change with latitude, highlighting the importance of teasing apart the roles of multiple factors in plant invasions within a biogeographic framework.

scholarly journals Distribution of selected invasive plant species in the Romensko-Poltavsky Geobotanical District (Ukraine)

2015 ◽  
Vol 40 (1) ◽  
pp. 37-47 ◽  
Author(s):  
Tetyana S. Dvirna
Keyword(s):  
Invasive Species ◽  
Plant Species ◽  
Invasive Plant ◽  
Invasive Plant Species

Abstract The paper presents the distribution of 10 selected invasive plant species in Ukraine. The studied taxa comprised 8 invasive and 2 potentially invasive species. All species were characterized in phytogeographical, biological and ecological terms. Their distribution was shown on grid maps.

scholarly journals Green Pioneers: Raising awareness of invasive plants for all ages

2019 ◽  
Vol 3 ◽  
Author(s):  
Ann Bogaerts ◽  
Sofie De Smedt ◽  
Sofie Meeus ◽  
Quentin Groom
Keyword(s):  
Invasive Species ◽  
Alien Species ◽  
Citizen Science ◽  
Plant Species ◽  
Invasive Plant ◽  
Public Awareness ◽  
Age Groups ◽  
Herbarium Specimens ◽  
Invasive Plant Species ◽  
Botanic Garden

When researchers and managers are asked to rank the issues that prevent adequate control of invasive species, lack of public awareness is at the top of the list (Dehnen‐Schmutz et al. 2018). It is therefore imperative to raise the general public's awareness of the potential risks of introducing alien species into the wild. Green Pioneers, a citizen science project funded by the Flemish Government, (Fig. 1) aims to address this issue in Belgium, across age groups. The project aims to Create awareness on invasive species, highlighting how invasions can be avoided and how to mitigate their impact. Improve communication between citizens and scientists on conservation and invasive plant species. Augment the quality and quantity of data on invasive species. Create awareness on invasive species, highlighting how invasions can be avoided and how to mitigate their impact. Improve communication between citizens and scientists on conservation and invasive plant species. Augment the quality and quantity of data on invasive species. The project is developing three kinds of activity, specifically to attract a broad demographic: - 'Young Pioneers', by developing tools for teachers in science, technology, engineering and mathemathics for school children from 12-15 years old. - 'Online Pioneers', through our online citizen science platform DoeDat.be, by helping with the transcription of label information on herbarium specimens, - and 'Visiteers', by inviting companies and working age people to help us in the collection and to inform them about invasive species. Finally, we will be organizing a BioBlitz in spring 2020 at Meise Botanic Garden where we will celebrate plants and all our Green Pioneers, while also spreading the message of invasive plant awareness. During our 48 hour BioBlitz, scientists, volunteers and citizens are workig together to survey the biodiversity of our Botanic Garden. Ultimately, Green Pioneers aim to encourage recording of alien species by amateur botanists and create a generation of responsible gardeners who understand the consequences of releasing invasive alien plants into the wild.

scholarly journals Assessing distribution changes of selected native and alien invasive plant species under changing climatic conditions in Nyeri County, Kenya

2020 ◽  
Author(s):  
Julius Maina Waititu ◽  
Charles Ndegwa Mundia ◽  
Arthur W Sichangi
Keyword(s):  
Climate Change ◽  
Invasive Species ◽  
Invasive Plant ◽  
Climatic Conditions ◽  
The Other ◽  
Range Shift ◽  
Climate Change Scenarios ◽  
Invasive Plant Species ◽  
Species Management ◽  
Study Species

AbstractChanges in climatic conditions increases the risks of native and alien taxa expanding in geographical range and causing habitat transformations. The role of climate change in enhancing bio-invasions in local natural environments need to be assessed to guide on effective species management policy formulations. In this present study, we used species presence records, predictor variables and an ensemble of General Circulation Models data to predict suitable ecological niches for five of the selected invasive plant species within Nyeri County, Kenya. We predicted species distributions under RCP2.6, RCP4.5, and RCP8.5 emission scenarios for the years 2050 and 2070. We analysed species distribution changes to identify invasive species requiring immediate management action. Our analysis indicated that three of the five study species were suitable in ~50% of the study area while the other two were suitable in ~30% under the current climate. Lantana camara L. and Solanum campylacanthum Hochst. ex A. Rich species would experience the largest range shift distance of ~6 – 10km and the largest habitat gain of ~12 – 33% in the future. Caesalpinia decapetala (Roth) Alston, Opuntia stricta (Haw.) Haw. and Senna didymobotrya (Fresen.) H.S. Irwin & Barneby species on the other hand would have a decline in habitat range under future climate change scenarios. Although, S. didymobotrya is considered a native species, it would lose half of its current suitable habitat in the future. Range shift analysis showed all study species would generally shift to the north west direction or towards the Aberdare ranges. From this study we conclude that invasive species management programs for smaller geographical areas ought to consider projecting species distributions under climate change scenarios to identify areas with high possible biodiversity changes. This would be important to conservationists when prioritizing management actions of invasive species in the region where data on invasive species is still limited.

scholarly journals DISTRIBUTION OF INVASIVE SPECIES (CRASSULACEAE) IN THE DAUGAVPILS CITY (LATVIA)

2015 ◽  
Vol 2 ◽  
pp. 30
Author(s):  
Santa Rutkovska ◽  
Ingūna Zeiļa
Keyword(s):  
Invasive Species ◽  
Plant Species ◽  
Invasive Plant ◽  
Natural Ecosystem ◽  
Invasive Plant Species ◽  
Alien Plant Species ◽  
Alien Plant ◽  
Species Protection ◽  
The World

The problem of invasive plant species is becoming more popular all over the world. The peculiarities of alien plant species is also growing in Latvia every year. Invasive species are the serious problem for natural ecosystem and species protection, in traditional landscape visual conservation as well it shows noticeable economical reducing in farming. Existing flora and its structure was as appearing in approximately 10 000-15 000 years after the last examining. It is still developing, quantitative and qualitative plant changes continue to grow in flora. That has an influence on natural narrowing, distribution and species changes. In Latvia, as well in such city as Daugavpils, such questions as alien plant growing were examined only in some fragments. An alien plant growing was analyzed. The following facts are found the biggest plant concentration is noticed in dry and sunny places well near the artificial plant areas.

Junonia lemonias (Linnaeus) Feeding on Chromolaena odorata (L.) King and Rob. Flowers in Namorah Range, Arunachal Pradesh (India): New Floral Visitor and Plausible Pollinator for an invasive Plant Species

2017 ◽  
Vol 40 (2) ◽  
pp. 143-145
Author(s):  
Ankur Jyoti Saikia ◽  
◽  
Arup Kumar Deka ◽  
Keyword(s):  
Plant Species ◽  
Invasive Plant ◽  
Invasive Plant Species ◽  
Arunachal Pradesh ◽  
Chromolaena Odorata ◽  
Floral Visitor ◽  
First Time ◽  
Time Form

The Lemon Pansy Butterfly, Junonia lemonias (Linnaeus) is reported for the first time form Namorah Range, Arunachal Pradesh (India) feeding on flowers of Chromolaena odorata (L.) King and Rob., an invasive plant species in natural wild conditions.

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