scholarly journals Distribution, naturalization status, invasion history and plant communities of Impatiens glandulifera Royle (Balsaminaceae) in Siberia

2021 ◽  
Vol 31 ◽  
pp. 00004
Author(s):  
Alexander Ebel ◽  
Wojciech Adamowski ◽  
Svetlana Mikhailova ◽  
Alla Verkhozina ◽  
Elena Zykova ◽  
...  

All available data on the distribution of Impatiens glandulifera Royle in Siberia was analyzed. The species appeared in Siberia as an unpretentious ornamental plant around the middle of the 20th century. Cases of withdrawal from culture have been recorded since the 1970s and 1980s; mass naturalization began at the end of the 20th century. Currently, the species is common in many regions of Siberia, but the most active in the Altai Territory, the Altai Republic, Kemerovo, Novosibirsk, Tomsk and Irkutsk Regions. It is common in anthropogenic habitats; it can also often be found in suburban forests, ravines, along the banks of water bodies. It shows tolerance to habitat conditions, but is especially active in areas with a close occurrence of groundwater on humus-rich soils. The species richness of I. glandulifera communities is from 10-15 to 40 species. In total, about 100 species of vascular plants were recorded in I. glandulifera communities in Siberia

Plants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 988
Author(s):  
Charlotte Descamps ◽  
Najet Boubnan ◽  
Anne-Laure Jacquemart ◽  
Muriel Quinet

Drought and higher temperatures caused by climate change are common stress conditions affecting plant growth and development. The reproductive phase is particularly sensitive to stress, but plants also need to allocate their limited resources to produce floral traits and resources to attract pollinators. We investigated the physiological and floral consequences of abiotic stress during the flowering period of Impatiens glandulifera, a bee-pollinated species. Plants were exposed to three temperatures (21, 24, 27 °C) and two watering regimes (well-watered, water stress) for 3 weeks. Not all parameters measured responded in the same manner to drought and/or heat stress. Drought stress induced leaf senescence, decreasing leaf number by 15–30% depending on growth temperature. Drought also reduced photosynthetic output, while temperature rise affected stomatal conductance. The number of flowers produced dropped 40–90% in response to drought stress, while higher temperatures shortened flower life span. Both stresses affected floral traits, but flower resources diminished in response to higher temperatures, with lower nectar volume and pollen protein content. We conclude that increased temperatures and drought stress, which are becoming more frequent with climate change, can negatively affect flowering, even if plants deploy physiological resistance strategies.


2020 ◽  
Vol 6 ◽  
pp. 339-355
Author(s):  
Olga A. Kapitonova

The article contains information on five species and three hybrids (Potamogeton × acutus, Potamogeton × pseudolacunatus, Stuckenia chakassiensis × S. macrocarpa) of vascular plants new to the Tyumen Region; seven of them are hydrophyte and one is a semi-aquatic species. We provided the occurrence data on 37 plant species not previously known in examined administrative districts of the Tyumen region, including four protected (Cypripedium macranthos, Pedicularis dasystachys, Ranunculus silvisteppaceus, Zannichellia repens) and four alien species (Elodea canadensis, Galega orientalis, Impatiens glandulifera, Phragmites altissimus).


Biologia ◽  
2014 ◽  
Vol 69 (4) ◽  
Author(s):  
Kinga Kostrakiewicz-Gierałt ◽  
Maria Zając

AbstractThe investigations of habitat conditions on the variability of selected population features in the two invasive, annuals with different life-history traits were conducted in the years 2008–2010, in the Polish part of the Carpathian Mountains in communities characterized by the gradual decrease of light availability. The individuals of Impatiens glandulifera were surveyed along roadsides, in willow thickets, as well as inside and along the edges of the riparian forest, whereas the individuals of Bidens frondosa were observed in riverside gravels characterized by a different species composition. Each year, the number and density of individuals (stems) occurring in the particular sites were examined, as well as the height and the fruit production in 30 randomly chosen stems were surveyed. Moreover, the number of seeds per fruit, the diaspore dimensions and the seedling recruitment in laboratory conditions were examined during each season. As the values of height of individuals, number of fruits per stem, number of seeds per fruit, as well as the seedling abundance in some groups were not consistent with the normal distribution and the variances were not homogeneous, the non-parametric Kruskal-Wallis test was used in statistical analyses.Much greater number and density of individuals of Impatiens glandulifera were found in riparian forest, than in willow thickets and along the roadsides. In all sites the number and density of individuals increased steadily in consecutive seasons. The great number and density of Bidens frondosa individuals observed in shady and partly shady sites during the first year of studies raised in the second year and subsequently dramatically decreased in the third season. The lowest number and density of individuals noted in the first season in unshaded site raised substantially in subsequent years. The height of stems, as well as seed and fruit production of both taxa diminished with a decrease of height of neighboring plants. The seed dimensions presented the spatial and temporal variability, whereas the number of seedlings among consecutive years and in successive sites did not differ.The considerable height of the individuals of Impatiens glandulifera, high production of large fruits and seeds in open and dry roadside areas can contribute to more effective ballistic dissemination, while substantial seedling recruitment enables the colonization of new, perhaps more advantageous sites. On the other hand, lower individual height, as well as fruit and seed production and considerable seedling emergence allow the population to last and to gradually extend the area in forest communities. The considerable abundance of the high-statured Bidens frondosa individuals, substantial production of large capitula and achenes contribute to long persistence of populations in open and sun-lit sites. The gradually decrease in the height of the stems, achene number and size observed in partly-shaded and shaded places might allow to long-distance dispersal of seeds by animals, while substantial seedling recruitment might contribute to establishment in new areas.


2018 ◽  
Author(s):  
Andrzej O. Bieńkowski ◽  
Marina J. Orlova-Bienkowskaja

AbstractInvasions of leaf beetles are of great ecological and economic significance, but poorly studied. The rate of these invasions in Europe is dramatically increasing. Some established species spread quickly occupying almost the whole continent within several decades. We present the first inventory of alien leaf beetles of European Russia. For each species the map of distribution is provided and the history of invasion in the world is discussed. Two species native to Mediterranean Region: Chrysolina americana (pest of Rosmarinus and Lavandula) and Leptomona erythrocephala feeding on Lotus corniculatus are recorded in European Russia for the first time. A polyphagous pest of floriculture Luperomorpha xanthodera native to China and Korea and pest of soybeans Medythia nigrobilineata native to East Asia were recorded in 2016. A pest of tobacco Epitrix hirtipennis native to North America was recorded in 2013. A pest of corn Diabrotica virgifera was intercepted at the border of Russia in 2011, but is not established. Three alien species were recorded in the 20th century: Zygogramma suturalis introduced from North America for control of Ambrosia, Phyllotreta reitteri native to Afghanistan and Tajikistan and feeding on Lepidium latifolium, and the Colorado potato beetle Leptinotarsa decemlineata. The Black Sea region is more prone to leaf beetle invasions than other regions of European Russia. Leaf beetles usually occur only on alien or cultivated plants. Some species feed on native plants in native communities. So it is difficult to distinguish species established before the 20th century from native ones.


Turczaninowia ◽  
2020 ◽  
Vol 23 (4) ◽  
pp. 83-87
Author(s):  
Vladimir I. Dorofeyev ◽  
Enebishiyn Ganbold ◽  
Ulzijchutag Enkhmaa

At the end of the 20th century the flora of Mongolia was considered very well examined. At that time V. I. Grubov (1982) had summarized its study. However, later it became clear that the flora can be thoroughly supplemented (Gubanov, 1996). In the 21st century, it became apparent that many areas of Mongolia require new, more thorough research, not only for clarifying their species diversity, but also for more specifically defining the boundaries of botanic-geographical districts. The first major attempts to combine all floristic publications were the “Conspectus of the vascular plants of Mongolia” (2014) and the first volumes of “Flora of Mongolia” (2015) prepared by the Mongolian botanists. But even these works show that Mongolia remains an endless region for the search and study of botanical novelties. One of the results of such critical search and studies of herbarium collections and field studies in 2019 is presented in this publication, which expands our knowledge on the distribution of 14 cruciferous species (Alyssum desertorum, Cardamine hirsuta, C. macrophylla, C. dentata, Chorispora tenella, Erysimum sisymbrioides, Meniocus linifolius, Neslia paniculata, Sinapis arvensis, Sisymbrium volgense, S. brassiciforme, S. loeselii, Thellungiella mollissima, Turritis borealis) and taxonomic position of Alyssum desertorum and Thellungiella mollissima.


Plants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2814
Author(s):  
Milos Stanojevic ◽  
Maja Trailovic ◽  
Tijana Dubljanin ◽  
Zoran Krivošej ◽  
Miroslav Nikolic ◽  
...  

An annual plant, Himalayan balsam (Impatiens glandulifera Royle) is globally widespread and one of Europe’s top invaders. We focused on two questions: does this species indeed not invade the southern areas and does the environment affect some of its key invisibility traits. In an isolated model mountainous valley, we jointly analyzed the soil (21 parameters), the life history traits of the invader (height, stem diameter, aboveground dw), and the resident vegetation (species composition and abundances, Ellenberg indicator values), and supplemented it with local knowledge (semi-structured interviews). Uncontrolled discharge of fecal wastewaters directly into the local dense hydrological network fostered mass infestation of an atypical habitat. The phenotypic plasticity of the measured invasion-related traits was very high in the surveyed early invasion (30–50% invader cover) stages. Different microhabitat conditions consistently correlated with its growth performance. The largest individuals were restricted to the deforested riparian habitats, with extreme soil nutrient enrichment (primarily by P and K) and low-competitive, species-poor resident vegetation. We showed that ecological context can modify invasion-related traits and what could affect a further invasion process. Finally, this species is likely underreported in the wider region; public attitude and loss of traditional ecological knowledge are further management risks.


Molecules ◽  
2013 ◽  
Vol 18 (7) ◽  
pp. 8429-8439 ◽  
Author(s):  
Jan Tříska ◽  
Naděžda Vrchotová ◽  
Jan Sýkora ◽  
Martin Moos

Plant Ecology ◽  
2014 ◽  
Vol 215 (8) ◽  
pp. 833-843 ◽  
Author(s):  
Robert A. Tanner ◽  
Liang Jin ◽  
Richard Shaw ◽  
Sean T. Murphy ◽  
Alan C. Gange

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