@article{2-s2.0-85180927091,

title = {Climate change as a factor enhancing the invasiveness of alien species},

author = { W. Solarz and K. Najberek and B. Tokarska-Guzik and A. Pietrzyk-Kaszyńska},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85180927091&doi=10.2478%2fenviron-2023-0022&partnerID=40&md5=6c9aeccb821824ac82ab10ab719285d2},

doi = {10.2478/environ-2023-0022},

issn = {23540079},

year  = {2023},

date = {2023-01-01},

journal = {Environmental and Socio-Economic Studies},

volume = {11},

number = {4},

pages = {36-48},

publisher = {Sciendo},

abstract = {Climate is one of the key factors governing the biological invasions of alien species, thus its change may have significant consequences for the scale of this process. We analyzed the predicted influence of climate change on the invasiveness of alien species in Poland and identified species susceptible to climate change. A total of 60 species of alien plants and 58 animals were assessed through an expert elicitation process. For 79 species climate change was assessed as the factor enhancing the likelihood of introduction, establishment, spread and/or impact in the future. Currently, the majority of these species are not widespread in Poland, and this list includes species totally absent, or present only in cultivation and captivity. Climate change will increase the number of high-risk invasive alien species (IAS) from 38 to 63. Species originating in warmer parts of the world are most susceptible to climate change. The majority of the high-risk IAS are regulated under the EU and Polish legislature. However, no restrictions have been imposed on some of the high-risk IAS. Since climate change will further increase their invasiveness, implementation of legal provisions towards these species is recommended. © 2023 De Gruyter Open Ltd. All rights reserved.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85129464164,

title = {Invasive alien species as reservoirs for pathogens},

author = { K. Najberek and A. Olszańska and B. Tokarska-Guzik and K. Mazurska and Z. Dajdok and W. Solarz},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85129464164&doi=10.1016%2fj.ecolind.2022.108879&partnerID=40&md5=dc8b7f014af42462ccc0daffe0247a4d},

doi = {10.1016/j.ecolind.2022.108879},

issn = {1470160X},

year  = {2022},

date = {2022-01-01},

journal = {Ecological Indicators},

volume = {139},

publisher = {Elsevier B.V.},

abstract = {Alien plant and animal hosts play an important role as vectors of dangerous pathogens. However, the knowledge on pathogens of many host species is still limited. To bridge this gap, we collated information on pathogens carried by 118 alien species in Europe in their native and secondary range. In Europe, these species are considered as invasive. Using the dataset we determined most prevailing pathogen groups and plant and animal hosts that carried the highest number of pathogens. The most numerous pathogens were bacteria Xylella fastidiosa (plants) and Rabies virus (animals). The principal pathogen groups among plant hosts were Arthropoda (phylum), Insecta (class) and Hemiptera (order), and among animal hosts – Platyhelminthes (phylum), Trematoda (class) and Plagiorchiida/Strongylida (order). In plants, the highest number of pathogens was recorded for Ambrosia artemisiifolia; in animals, Procyon lotor was the most infested species. Hosts introduced from North America carried the highest numbers of pathogen species; in addition, unintentionally introduced hosts carried more pathogens than those introduced intentionally. We revealed also that the level of infestation differs between the habitats in which the hosts occur. It should be also stressed that in all analyses the number of pathogens increased with the number of publications on the particular host’ infestation. The highest number of publications was available for species useful for human, such as Crassostrea gigas. The results demonstrated that there are still significant gaps in the knowledge on the role of other hosts, including invasive ones (e.g.; Sciurus niger) in pathogen transmission. © 2022 Institute of Nature Conservation, Polish Academy of Sciences},

note = {3},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85123797712,

title = {Invasive alien plants in Poland - The state of research and the use of the results in practice},

author = { B. Tokarska-Guzik and K. Bzdęga and Z. Dajdok and K. Mazurska and W. Solarz},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85123797712&doi=10.2478%2fenviron-2021-0027&partnerID=40&md5=d9523f0bedd6a427b64109abc374c1f4},

doi = {10.2478/environ-2021-0027},

issn = {23540079},

year  = {2021},

date = {2021-01-01},

journal = {Environmental and Socio-Economic Studies},

volume = {9},

number = {4},

pages = {71-95},

publisher = {De Gruyter Open Ltd},

abstract = {The participation of species of alien origin in the flora of individual regions of the world is increasing. A large proportion of these species pose a threat to biodiversity. Issues of the dynamics of changes in the flora and the scale and pace of the processes, with particular emphasis on the biology, ecology, chorology, and genetic variability of the populations of plants of alien origin, including those alien species which are invasive, have been the subject of many years of research in this field in Poland. The present study is an overview of the state of research on invasive plant species in Poland, including the main results of the basic and applied research which have provided the basis for (i) the preparation of a list of invasive plant species for Poland; (ii) assessing the degree of invasiveness of the species analysed, in accordance with the adoption of criteria and the development of methodological solutions. In this work, a new version of the list of invasive plant species has been prepared on the basis of earlier studies, combining theoretical and practical aspects of definition, and it is compared with the list of invasive alien plant species considered to constitute a threat to the EU and Poland as a member country. The categorization (risk assessment) of invasive alien species along with the identification of the most endangered types of natural habitats is often used in practice in the management of invasive plants in Poland. The results of our research have fed into the formulation of legal regulations at the global and regional levels. © 2021 Barbara Tokarska-Guzik et al.},

note = {2},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85097586350,

title = {Geostatistical models with the use of hyperspectral data and seasonal variation – A new approach for evaluating the risk posed by invasive plants},

author = { K. Bzdęga and A. Zarychta and A. Urbisz and S. Szporak-Wasilewska and M. Ludynia and B. Fojcik and B. Tokarska-Guzik},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85097586350&doi=10.1016%2fj.ecolind.2020.107204&partnerID=40&md5=d94836fea21a30c97a86f9a1e40534b8},

doi = {10.1016/j.ecolind.2020.107204},

issn = {1470160X},

year  = {2021},

date = {2021-01-01},

journal = {Ecological Indicators},

volume = {121},

publisher = {Elsevier B.V.},

abstract = {The general trend of ongoing plant invasion and the increasing number of species that may become invasive in the future, force seeking solutions that can improve the efficiency and economy of their management. Thus, we applied a novel approach combining the use of geostatistical interpolators such as ordinary kriging (OK) and co-kriging (CK) with environmental and hyperspectral data to evaluate the potential threat associated with the distribution of invasive plant species and to predict their probabilities of occurrence above the selected threshold of 10%. The specific spatial patterns of the probability of occurrence of Heracleum sosnowskyi and Fallopia spp. were modelled in two study areas in southern Poland. The significant achievement of this study was the application of geostatistical tools producing results characterized by a degree of precision quantified by cross-validation errors, and prediction errors after field verification. OK and CK returned root mean squared error (RMSE) values in a range from 0.21 to 0.51 and 0.21 to 0.47, respectively. For OK and CK, the prediction errors resulting from field verification in the following year were between 0.03–0.39, and 0.03–0.29, respectively. Additionally, the study provided the first prediction maps (2D) and Digital Prediction Models (DPMs) (3D) visualizations of the probability of occurrence of both invasive plants. Although the proposed approach is illustrated with real case studies related to Heracleum sosnowskyi and Fallopia spp., it could be extended to other species. This demonstrates the potential of an effective alternative strategy for evaluating the risk posed by invasive plants, that will be able to provide fast, low cost and effective prediction and monitoring of their spread. For institutions dealing with invasive plants, this may be beneficial and help to reduce the negative consequences of their improper management. © 2020 University of Silesia},

note = {7},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85102171318,

title = {Monograph of invasive plants in Europe N°6: Asclepias syriaca L},

author = { S. Follak and L. Bakacsy and F. Essl and L. Hochfellner and K. Lapin and M. Schwarz and B. Tokarska-Guzik and D. Wołkowycki},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85102171318&doi=10.1080%2f23818107.2021.1886984&partnerID=40&md5=6552abd0a3fb69eefca41b58b0d1e934},

doi = {10.1080/23818107.2021.1886984},

issn = {23818107},

year  = {2021},

date = {2021-01-01},

journal = {Botany Letters},

volume = {168},

number = {3},

pages = {422-451},

publisher = {Taylor and Francis Ltd.},

abstract = {This work synthesizes all aspects of Asclepias syriaca L. (Apocynaceae) including the taxonomy, distribution, history of introduction and spread, ecology, biology, uses and benefits, impacts on biodiversity and agriculture, legislation, and management. Asclepias syriaca is a perennial broad-leaved species native to North America. Introduced for ornamental and various other purposes, such as a source of fibre and rubber, it has become established in many regions of Europe and it had increasingly spread in the last decades (>1980s). Its reproductive behavior is characterized by a high production of wind-dispersed seeds and by the propagation of creeping lateral rhizomes, which allows the species to proliferate rapidly. The species persists in a wide range of edaphic and climatic environments. It occurs particularly in anthropogenic and (semi-)natural habitats, such as roadsides, agricultural land, abandoned sites and grasslands, open shrubland, and forests, respectively. Studies have demonstrated negative impacts on the biodiversity and ecosystem processes in invaded regions, namely in open sand grasslands in Hungary. Asclepias syriaca occurs as a competitive weed in crop fields. Since 2017, the species is regulated by the European Union (EU) under the Regulation No. 1143/2014, which states that A. syriaca is subjected to restrictions such as a ban on importing, selling, breeding and that EU member states are required to place effective management measures. Awareness raising activities are important to inform the public, farmers and stakeholders about the risks of this invasive alien plant. Effective direct control options include mechanical control as well as herbicide application. © 2021 Société botanique de France.},

note = {4},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85099175699,

title = {Intra-annual variabilities of rubus caesius l. Discrimination on hyperspectral and lidar data},

author = { A. Jarocińska and D. Kopeć and B. Tokarska-Guzik and E. Raczko},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85099175699&doi=10.3390%2frs13010107&partnerID=40&md5=8a1d9048bf3dfe0370f2e48aafbe92e3},

doi = {10.3390/rs13010107},

issn = {20724292},

year  = {2021},

date = {2021-01-01},

journal = {Remote Sensing},

volume = {13},

number = {1},

pages = {1-22},

publisher = {MDPI AG},

abstract = {The study was focused on a plant native to Poland, the European dewberry Rubus caesius L., which is a species with the ability to become excessively abundant within its original range, potentially causing significant changes in ecosystems, including biodiversity loss. Monitoring plant distributions over large areas requires mapping that is fast, reliable, and repeatable. For Rubus, different types of data were successfully used for classification, but most of the studies used data with a very high spectral resolution. The aim of this study was to indicate, using hyperspectral and Light Detection and Ranging (LiDAR) data, the main functional trait crucial for R. caesius differentiation from non-Rubus. This analysis was carried out with consideration of the seasonal variability and different percentages of R. caesius in the vegetation patches. The analysis was based on hyperspectral HySpex images and Airborne Laser Scanning (ALS) products. Data were acquired during three campaigns: early summer, summer, and autumn. Differentiation based on Linear Discriminate Analysis (LDA) and Non-Parametric Multivariate Analysis of Variance (NPMANOVA) analysis was successful for each of the analysed campaigns using optical data, but the ALS data were less useful for identification. The analysis indicated that selected spectral ranges (VIS; red-edge; and parts of the NIR and possibly SWIR ranges) can be useful for differentiating R. caesius from non-Rubus. The most useful indices were ARI1, CRI1, ARVI, GDVI, CAI, NDNI, and MRESR. The obtained results indicate that it is possible to classify R. caesius using images with lower spectral resolution than hyperspectral data. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.},

note = {4},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85075342414,

title = {Mapping succession in non-forest habitats by means of remote sensing: Is the data acquisition time critical for species discrimination?},

author = { K. Osińska-Skotak and A. Radecka and H. Piórkowski and D. Michalska-Hejduk and D. Kopeć and B. Tokarska-Guzik and W. Ostrowski and A. Kania and J. Niedzielko},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85075342414&doi=10.3390%2frs11222629&partnerID=40&md5=803aca2f57a9b9f3839750b21e92e2ed},

doi = {10.3390/rs11222629},

issn = {20724292},

year  = {2019},

date = {2019-01-01},

journal = {Remote Sensing},

volume = {11},

number = {22},

publisher = {MDPI AG},

abstract = {The process of secondary succession is one of themost significant threats to non-forest (natural and semi-natural open) Natura 2000 habitats in Poland; shrub and tree encroachment taking place on abandoned, low productive agricultural areas, historically used as pastures or meadows, leads to changes to the composition of species and biodiversity loss, and results in landscape transformations. There is a perceived need to create amethodology for themonitoring of vegetation succession by airborne remote sensing, both from quantitative (area; volume) and qualitative (plant species) perspectives. This is likely to become a very important issue for the effective protection of natural and semi-natural habitats and to advance conservation planning. A key variable to be established when implementing a qualitative approach is the remote sensing data acquisition date, which determines the developmental stage of trees and shrubs forming the succession process. It is essential to choose the optimal date on which the spectral and geometrical characteristics of the species are as different from each other as possible. As part of the research presented here, we compare classifications based on remote sensing data acquired during three different parts of the growing season (spring; summer and autumn) for five study areas. The remote sensing data used include high-resolution hyperspectral imagery and LiDAR (Light Detection and Ranging) data acquired simultaneously from a common aerial platform. Classifications are done using the random forest algorithm, and the set of features to be classified is determined by a recursive feature elimination procedure. The results show that the time of remote sensing data acquisition influences the possibility of differentiating succession species. This was demonstrated by significant differences in the spatial extent of species, which ranged from 33.2% to 56.2% when comparing pairs of maps, and differences in classification accuracies, which when expressed in values of Cohen's Kappa reached ~0.2. For most of the analysed species, the spring and autumn dates turned out to be slightly more favourable than the summer one. However, the final recommendation for the data acquisition time should take into consideration the phenological cycle of deciduous species present within the research area and the abiotic conditions. © 2019 by the authors.},

note = {9},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85058896750,

title = {Classification of expansive grassland species in different growth stages based on hyperspectral and LiDAR data},

author = { A. Marcinkowska-Ochtyra and A. Jarocińska and K. Bzdęga and B. Tokarska-Guzik},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85058896750&doi=10.3390%2frs10122019&partnerID=40&md5=7948dffb33186490b670e3459433a5e1},

doi = {10.3390/rs10122019},

issn = {20724292},

year  = {2018},

date = {2018-01-01},

journal = {Remote Sensing},

volume = {10},

number = {12},

publisher = {MDPI AG},

abstract = {Expansive species classification with remote sensing techniques offers great support for botanical field works aimed at detection of their distribution within areas of conservation value and assessment of the threat caused to natural habitats. Large number of spectral bands and high spatial resolution allows for identification of particular species. LiDAR (Light Detection and Ranging) data provide information about areas such as vegetation structure. Because the species differ in terms of features during the growing season, it is important to know when their spectral responses are unique in the background of the surrounding vegetation. The aim of the study was to identify two expansive grass species: Molinia caerulea and Calamagrostis epigejos in the Natura 2000 area in Poland depending on the period and dataset used. Field work was carried out during late spring, summer and early autumn, in parallel with remote sensing data acquisition. Airborne 1-m resolution HySpex images and LiDAR data were used. HySpex images were corrected geometrically and atmospherically before Minimum Noise Fraction (MNF) transformation and vegetation indices calculation. Based on a LiDAR point cloud generated Canopy Height Model, vegetation structure from discrete and full-waveform data and topographic indexes were generated. Classifications were performed using a Random Forest algorithm. The results show post-classification maps and their accuracies: Kappa value and F1 score being the harmonic mean of producer (PA) and user (UA) accuracy, calculated iteratively. Based on these accuracies and botanical knowledge, it was possible to assess the best identification date and dataset used for analysing both species. For M. caerulea the highest median Kappa was 0.85 (F1 = 0.89) in August and for C. epigejos 0.65 (F1 = 0.73) in September. For both species, adding discrete or full-waveform LiDAR data improved the results. We conclude that hyperspectral (HS) and LiDAR airborne data could be useful to identify grassland species encroaching into Natura 2000 habitats and for supporting their monitoring. © 2018 by the authors.},

note = {28},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85037082666,

title = {Explaining variability in the production of seed and allergenic pollen by invasive Ambrosia artemisiifolia across Europe},

author = { S.T.E. Lommen and C.A. Hallmann and E. Jongejans and B. Chauvel and M. Leitsch-Vitalos and A. Aleksanyan and P. Tóth and C. Preda and M. Šćepanović and H. Onen and B. Tokarska-Guzik and P. Anastasiu and Z. Dorner and A. Fenesi and G. Karrer and K. Nagy and G. Pinke and V. Tiborcz and G. Zagyvai and M. Zalai and G. Kazinczi and R. Leskovšek and D. Stešević and G. Fried and L. Kalatozishvili and A. Lemke and H. Müller-Schärer},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85037082666&doi=10.1007%2fs10530-017-1640-9&partnerID=40&md5=995b3bbdb957cd796e424849cf3555a1},

doi = {10.1007/s10530-017-1640-9},

issn = {13873547},

year  = {2018},

date = {2018-01-01},

journal = {Biological Invasions},

volume = {20},

number = {6},

pages = {1475-1491},

publisher = {Springer International Publishing},

abstract = {To better manage invasive populations, it is vital to understand the environmental drivers underlying spatial variation in demographic performance of invasive individuals and populations. The invasive common ragweed, Ambrosia artemisiifolia, has severe adverse effects on agriculture and human health, due to its vast production of seeds and allergenic pollen. Here, we identify the scale and nature of environmental factors driving individual performance of A. artemisiifolia, and assess their relative importance. We studied 39 populations across the European continent, covering different climatic and habitat conditions. We found that plant size is the most important determinant in variation of per-capita seed and pollen production. Using plant volume as a measure of individual performance, we found that the local environment (i.e. the site) is far more influential for plant volume (explaining 25% of all spatial variation) than geographic position (regional level; 8%) or the neighbouring vegetation (at the plot level; 4%). An overall model including environmental factors at all scales performed better (27%), including the weather (bigger plants in warm and wet conditions), soil type (smaller plants on soils with more sand), and highlighting the negative effects of altitude, neighbouring vegetation and bare soil. Pollen and seed densities varied more than 200-fold between sites, with highest estimates in Croatia, Romania and Hungary. Pollen densities were highest on arable fields, while highest seed densities were found along infrastructure, both significantly higher than on ruderal sites. We discuss implications of these findings for the spatial scale of management interventions against A. artemisiifolia. © 2017, Springer International Publishing AG, part of Springer Nature.},

note = {22},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85042925928,

title = {Global rise in emerging alien species results from increased accessibility of new source pools},

author = { H. Seebens and T.M. Blackburn and E.E. Dyer and P. Genovesi and P.E. Hulme and J.M. Jeschke and S. Pagad and P. Pyšek and M. Van Kleunen and M. Winter and M. Ansong and M. Arianoutsou and S. Bacher and B. Blasius and E.G. Brockerhoff and G. Brundu and C. Capinha and C.E. Causton and L. Celesti-Grapow and W. Dawson and S. Dullinger and E.P. Economo and N. Fuentes and B. Guénard and H. Jäger and J. Kartesz and M. Kenis and I. Kühn and B. Lenzner and A.M. Liebhold and A. Mosena and D. Moser and W. Nentwig and M. Nishino and D. Pearman and J. Pergl and W. Rabitsch and J. Rojas-Sandoval and A. Roques and S. Rorke and S. Rossinelli and H.E. Roy and R. Scalera and S. Schindler and K. Štajerová and B. Tokarska-Guzik and K. Walker and D.F. Ward and T. Yamanaka and F. Essl},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85042925928&doi=10.1073%2fpnas.1719429115&partnerID=40&md5=f34257c17e856c21b46712fdec192b94},

doi = {10.1073/pnas.1719429115},

issn = {00278424},

year  = {2018},

date = {2018-01-01},

journal = {Proceedings of the National Academy of Sciences of the United States of America},

volume = {115},

number = {10},

pages = {E2264-E2273},

publisher = {National Academy of Sciences},

abstract = {Our ability to predict the identity of future invasive alien species is largely based upon knowledge of prior invasion history. Emerging alien species-those never encountered as aliens before-therefore pose a significant challenge to biosecurity interventions worldwide. Understanding their temporal trends, origins, and the drivers of their spread is pivotal to improving prevention and risk assessment tools. Here, we use a database of 45,984 first records of 16,019 established alien species to investigate the temporal dynamics of occurrences of emerging alien species worldwide. Even after many centuries of invasions the rate of emergence of new alien species is still high: Onequarter of first records during 2000-2005 were of species that had not been previously recorded anywhere as alien, though with large variation across taxa. Model results show that the high proportion of emerging alien species cannot be solely explained by increases in well-known drivers such as the amount of imported commodities from historically important source regions. Instead, these dynamics reflect the incorporation of new regions into the pool of potential alien species, likely as a consequence of expanding trade networks and environmental change. This process compensates for the depletion of the historically important source species pool through successive invasions. We estimate that 1-16% of all species on Earth, depending on the taxonomic group, qualify as potential alien species. These results suggest that there remains a high proportion of emerging alien species we have yet to encounter, with future impacts that are difficult to predict. © 2018 National Academy of Sciences. All Rights Reserved.},

note = {272},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85049503825,

title = {Time to cut: Population models reveal how to mow invasive common ragweed cost-effectively},

author = { S.T.E. Lommen and E. Jongejans and M. Leitsch-Vitalos and B. Tokarska-Guzik and M. Zalai and H. Müller-Schärer and G. Karrer},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85049503825&doi=10.3897%2fneobiota.39.23398&partnerID=40&md5=07d9e6b75e3f3fc27370c8d5258aceec},

doi = {10.3897/neobiota.39.23398},

issn = {16190033},

year  = {2018},

date = {2018-01-01},

journal = {NeoBiota},

number = {39},

pages = {53-78},

publisher = {Pensoft Publishers},

abstract = {Roadsides are an important habitat for invasive common ragweed, Ambrosia artemisiifolia L., by facilitating seed dispersal. Reducing the size of roadside populations is therefore essential for confining this highly allergenic species. Here, we aim to determine the cost-effectiveness of mowing regimes varying in frequency and timing, by analysing population-level effects and underlying demographic processes. We constructed population models of A. artemisiifolia parameterised by demographic data for four unmanaged reference populations across Europe in two years. We integrated the effects of four experimental mowing regimes along Austrian road sides on plant performance traits of five years and experimental data on seed viability after cutting. All four experimental regimes reduced the projected intrinsic population growth rates (r) compared to the unmanaged controls by reducing plant height and seed viability, thereby counteracting increased size-dependent fecundity. The prevailing 2-cut regime in Austria (cutting during vegetative growth; here in June and just before seed ripening; here in September) performed least well and the reduction in r was mainly due to reduced seed viability after the second cut. The efficacy of the two best experimental regimes (alternative schemes for 2 or 3 cuts) was mainly due to cutting just before female flowering (here in August) by decreasing final adult plant height dramatically and thereby reducing seed numbers. Patterns were consistent across reference populations and years. Whether regimes reduced r below replacement level, however, varied per population, year and the survival rate of the seeds in the soil bank. Our model allowed projecting effects of five theoretical mowing regimes with untested combinations of cuts on r. By plotting r-cost relationships for all regimes, we identified the most cost-effective schemes for each cutting frequency (1-3 cuts). They all included the cut just before female flowering, highlighting the importance of cutting at this moment (here in August). Our work features i) the suitability of a modelling approach for the demography of an annual species with a seed bank, ii) the importance of seed viability in assessing mowing effects, iii) the use of population models in designing cost-effective mowing regimes. © Suzanne T. E. Lommen et al.},

note = {11},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85029889533,

title = {Simple yet effective: Historical proximity variables improve the species distribution models for invasive giant hogweed (Heracleum mantegazzianum s.l.) in Poland},

author = { P. Mędrzycki and I. Jarzyna and A. Obidziński and B. Tokarska-Guzik and Z. Sotek and P. Pabjanek and A. Pytlarczyk and I. Sachajdakiewicz},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85029889533&doi=10.1371%2fjournal.pone.0184677&partnerID=40&md5=e61d83eb5a11281f56806abbeffd5917},

doi = {10.1371/journal.pone.0184677},

issn = {19326203},

year  = {2017},

date = {2017-01-01},

journal = {PLoS ONE},

volume = {12},

number = {9},

publisher = {Public Library of Science},

abstract = {Species distribution models are scarcely applicable to invasive species because of their breaking of the models’ assumptions. So far, few mechanistic, semi-mechanistic or statistical solutions like dispersal constraints or propagule limitation have been applied. We evaluated a novel quasi-semi-mechanistic approach for regional scale models, using historical proximity variables (HPV) representing a state of the population in a given moment in the past. Our aim was to test the effects of addition of HPV sets of different minimal recentness, information capacity and the total number of variables on the quality of the species distribution model for Heracleum mantegazzianum on 116000 km2 in Poland. As environmental predictors, we used fragments of 103 1×1 km, world- wide, free-access rasters from WorldGrids.org. Single and ensemble models were computed using BIOMOD2 package 3.1.47 working in R environment 3.1.0. The addition of HPV improved the quality of single and ensemble models from poor to good and excellent. The quality was the highest for the variants with HPVs based on the distance from the most recent past occurrences. It was mostly affected by the algorithm type, but all HPV traits (minimal recentness; information capacity; model type or the number of the time periods) were significantly important determinants. The addition of HPVs improved the quality of current projections, raising the occurrence probability in regions where the species had occurred before. We conclude that HPV addition enables semi-realistic estimation of the rate of spread and can be applied to the short-term forecasting of invasive or declining species, which also break equal-dispersal probability assumptions. © 2017 Mędrzycki et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.},

note = {8},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-85011803578,

title = {No saturation in the accumulation of alien species worldwide},

author = { H. Seebens and T.M. Blackburn and E.E. Dyer and P. Genovesi and P.E. Hulme and J.M. Jeschke and S. Pagad and P. Pyšek and M. Winter and M. Arianoutsou and S. Bacher and B. Blasius and G. Brundu and C. Capinha and L. Celesti-Grapow and W. Dawson and S. Dullinger and N. Fuentes and H. Jäger and J. Kartesz and M. Kenis and H. Kreft and I. Kühn and B. Lenzner and A.M. Liebhold and A. Mosena and D. Moser and M. Nishino and D. Pearman and J. Pergl and W. Rabitsch and J. Rojas-Sandoval and A. Roques and S. Rorke and S. Rossinelli and H.E. Roy and R. Scalera and S. Schindler and K. Štajerová and B. Tokarska-Guzik and M. Van Kleunen and K. Walker and P. Weigelt and T. Yamanaka and F. Essl},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85011803578&doi=10.1038%2fncomms14435&partnerID=40&md5=6494151b062fc7fb59cd9d4c7db3abcb},

doi = {10.1038/ncomms14435},

issn = {20411723},

year  = {2017},

date = {2017-01-01},

journal = {Nature Communications},

volume = {8},

publisher = {Nature Publishing Group},

abstract = {Although research on human-mediated exchanges of species has substantially intensified during the last centuries, we know surprisingly little about temporal dynamics of alien species accumulations across regions and taxa. Using a novel database of 45,813 first records of 16,926 established alien species, we show that the annual rate of first records worldwide has increased during the last 200 years, with 37% of all first records reported most recently (1970-2014). Inter-continental and inter-taxonomic variation can be largely attributed to the diaspora of European settlers in the nineteenth century and to the acceleration in trade in the twentieth century. For all taxonomic groups, the increase in numbers of alien species does not show any sign of saturation and most taxa even show increases in the rate of first records over time. This highlights that past efforts to mitigate invasions have not been effective enough to keep up with increasing globalization. © The Author(s) 2017.},

note = {990},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-84991258049,

title = {A survey of genetic variation and genome evolution within the invasive Fallopia complex},

author = { K. Bzdęga and A. Janiak and T. Ksiązczyk and A. Lewandowska and M. Gancarek and E. Sliwinska and B. Tokarska-Guzik},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84991258049&doi=10.1371%2fjournal.pone.0161854&partnerID=40&md5=9b6fdbc28af38482cac72b2dab51becc},

doi = {10.1371/journal.pone.0161854},

issn = {19326203},

year  = {2016},

date = {2016-01-01},

journal = {PLoS ONE},

volume = {11},

number = {8},

publisher = {Public Library of Science},

abstract = {The knotweed taxa Fallopia japonica, F. sachalinensis and their interspecific hybrid F. × bohemica are some of the most aggressive invaders in Europe and North America and they are serious threats to native biodiversity. At the same time, they constitute a unique model system for the creation of hybrids and studies of the initiation of evolutionary processes. In the presented study, we focused on (i) examining genetic diversity in selected populations of three Fallopia taxa in the invaded (Poland) and native ranges (Japan), (ii) establishing genome size and ploidy levels and (iii) identifying ribosomal DNA (rDNA)-bearing chromosomes in all of the taxa from the invaded range. We found that the genetic diversity within particular taxa was generally low regardless of their geographical origin. A higher level of clonality was observed for the Polish populations compared to the Japanese populations. Our study suggests that the co-occurrence of F. sachalinensis together with the other two taxa in the same stand may be the source of the higher genetic variation within the F. × bohemica hybrid. Some shift towards the contribution of F. japonica alleles was also observed for selected F. × bohemica individuals, which indicates the possibility of producing more advanced generations of F. × bohemica hybrids. All of the F. sachalinensis individuals were hexaploid (2n = 6x = 66; 2C = 6.01 pg), while those of F. japonica were mostly octoploid (2n = 8x = 88; 2C = 8.87 pg) and all of the F. × bohemica plants except one were hexaploid (2n = 6x = 66; 2C = 6.46 pg). Within the chromosome complement of F. japonica, F. sachalinensis and F. × bohemica, the physical mapping of the rDNA loci provided markers for 16, 13 and 10 chromosomes, respectively. In F. × bohemica, a loss of some of rDNA loci was observed, which indicates the occurrence of genome changes in the hybrid. © 2016 Bzdega et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.},

note = {12},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-84926451096,

title = {The influence of invasive Fallopia taxa on resident plant species in two river valleys (southern Poland)},

author = { D. Chmura and B. Tokarska-Guzik and T. Nowak and G. Woźniak and K. Bzdęga and K. Koszela and M. Gancarek},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84926451096&doi=10.5586%2fasbp.2015.008&partnerID=40&md5=6cf58643d127f6b3caad42501fee4951},

doi = {10.5586/asbp.2015.008},

issn = {00016977},

year  = {2015},

date = {2015-01-01},

journal = {Acta Societatis Botanicorum Poloniae},

volume = {84},

number = {1},

pages = {23-33},

publisher = {Polskie Towarzystwo Botaniczne},

abstract = {Riparian zones in two rivers in southern Poland were studied in terms of species composition and soil parameters in patches dominated by three knotweed taxa (Fallopia japonica; F. sachalinensis and the hybrid F. ×bohemica). The main purpose was to detect any differences in species diversity, environmental conditions and in the impact of the three Fallopia spp. on resident species. Fieldwork was conducted in spring and summer in 30 invaded plots (in total 90 subplots). It was demonstrated that vegetation dominated by particular knotweed taxa differed in response to soil pH and ammonium, nitrate, and magnesium content. Fallopia spp. (living plants and necromass) had a stronger negative impact on the cover and species diversity of the resident species in summer in comparison with spring. Vegetation patches differed significantly in species composition in relation to the knotweed taxa present. These differences may be the consequence of the differentiated biotopic requirements of Fallopia taxa and the coexisting plants, or to the different impact of the knotweed taxa on the resident species. © The Author(s) 2015.},

note = {18},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-84896716149,

title = {The importance of land use type in Fallopia (Reynoutria) Japonica invasion in the suburban environment},

author = { D. Chmura and P. Nejfeld and M. Borowska and G. Woźniak and T. Nowak and B. Tokarska-Guzik},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84896716149&partnerID=40&md5=22a992a2981ec6e5e99d6b6a0ade8f8c},

issn = {15052249},

year  = {2013},

date = {2013-01-01},

journal = {Polish Journal of Ecology},

volume = {61},

number = {2},

pages = {379-384},

abstract = {In total 273 stands of the invasive species Fallopia (Reynoutria) japonica in Oświęcim valley (southern Poland) were examined, in terms of cover, area, abundance, height and width of shoots, and presence of coexisting species. F. japonica occurred more frequently in wastelands and was the rarest in forests. Statistical analyses revealed some significant differences among habitats with particular traits. The most abundant populations, occupying the largest area, were recorded in wetlands and along railway lines. Populations were very diverse in terms of their percentage of flowering shoots within a particular type of habitat, however, the highest percentage was again observed in wetlands and along railways. In forests, gardens and in wastelands the contribution of flowering shoots was lower. The presence of accompanying species in the studied populations was generally low, most frequently stands of F. japonica were mono-specific with a slightly higher cover of accompanying species being recorded in F. japonica populations in forests. The highest proportion of the tallest shoots within a patch of F. japonica was observed in wetlands, while the lowest was in wastelands and in railways. The individuals with the thickest shoots were present in forests and wetlands and the thinnest in wastelands. Despite the simplified nature of the data collection the study demonstrated that F. japonica is more vigorous and forms larger stands occupying larger areas in some of the analyzed habitats. The study showed that in man-made habitats the considered species has favourable conditions for its development and further spread and this is of concern to conservationists and land managers as it can pose a threat to native biodiversity.},

note = {11},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-84865992818,

title = {Unexpected genetic diversity of Fallopia japonica from Central Europe revealed after AFLP analysis},

author = { K. Bzdęga and A. Janiak and S. Tarłowska and M.M. Kurowska and B. Tokarska-Guzik and I. Szarejko},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84865992818&doi=10.1016%2fj.flora.2012.05.002&partnerID=40&md5=6fae375b33865dfffbbe0280848f867c},

doi = {10.1016/j.flora.2012.05.002},

issn = {03672530},

year  = {2012},

date = {2012-01-01},

journal = {Flora: Morphology, Distribution, Functional Ecology of Plants},

volume = {207},

number = {9},

pages = {636-645},

abstract = {Recently much attention has been paid to genetic aspects of invasive success in Japanese knotweed s.l. One hypothesis to explain the invasive spread of these species is a multiple introduction, which leads to a higher level of genetic diversity in the invaded range. Fallopia japonica is considered to be genetically uniform in Europe, introduced as a single female clone. However, there is some evidence suggesting that invasion history and dynamics differ between Western and Central-Eastern Europe. We used AFLP markers to characterize genetic diversity of three Fallopia taxa that occur in Poland: F. japonica, F. sachalinensis and their hybrid Fallopia×. bohemica, growing in so-called 'homogeneous' populations, consisting of one taxon and 'heterogeneous' populations, composed of the three taxa cohabiting together. No polymorphism, resp. an insignificantly low variability was observed in the 'homogeneous' populations. In the 'heterogeneous' stands polymorphism was detected within each taxa, with one exception that concerns individuals of F. sachalinensis from a riparian habitat. The highest level of polymorphism was found among individuals of F.×. bohemica. The most striking result of our study is the observation of polymorphism between individuals of F. japonica. The AFLP data also showed that F.×. bohemica is most diverse when occurring in a heterogeneous configuration with F. japonica and F. sachalinensis in the same habitat. Our results are the first evidence of genetic diversity in F. japonica populations in Central Europe and can implicate the possibility of its multiple introduction in this region or the existence of sexual reproduction of this species. © 2012 .},

note = {18},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-80655145850,

title = {Distribution patterns and habitat preferences of mountain vascular plant species in the Silesian uplands (Southern Poland)},

author = { T. Nowak and A. Urbisz and P. Kapusta and B. Tokarska-Guzik},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-80655145850&partnerID=40&md5=3a4c7e50872f8edc695278f8353ea925},

issn = {15052249},

year  = {2011},

date = {2011-01-01},

journal = {Polish Journal of Ecology},

volume = {59},

number = {2},

pages = {219-234},

abstract = {The descent of some mountain species into the lowlands is an interesting phenomenon in plant geography and ecology. The main purpose of the present study is to update the list of mountain species for the Silesian Uplands and to provide a synthesis of the knowledge accumulated to date on the habitats for their occurrence, a possible origin and their distribution patterns. In the present study, both the authors' own records and those obtained by other researchers have been used: published, unpublished and herbarium records, and assembled in a form compatible with the Atlas of distribution of vascular plants in Poland (ATPOL) in the ATPOL-Silesia database). A list of mountain species present in the study region (approximately 4000 km2) is provided in relation to their altitudinal groups. For each species, information about its affiliation to geographical elements and the type of habitats in which it has occurred is recorded. The distribution of mountain species in the Silesian Uplands has been investigated by mapping the species onto a grid of 2 × 2 km squares (1040 in total). For ATPOL squares, containing at least one mountain species (N = 647), CORINE land cover data were obtained and used in explaining the distribution of mountain species composition and richness. In the vascular flora of the Silesian Uplands 76 mountain taxa have been noted, including 2 submontane, 41 montane, 1 subalpine and 32 multizonal species. The list of mountain species has been supplemented with Lonicera nigra and Cirsium erisithales. Many mountain species occurring in the Silesian Uplands have localities distributed throughout the whole region and thus they do not represent any particular type of range. Some species show certain patterns of distribution associated with local habitat conditions. Stands of the montane species are concentrated mainly in the western part of the Silesian Uplands, while the multizonal species are concentrated in the eastern and central part of the study area. Most of the mountain species occur in natural habitats, in particular in broadleaved woodlands, even when they have been degraded. However, some of the species prefer strongly degraded habitats, in particular sand- and clay-pits, quarries and industrial spoils which has been confirmed by multivariate (RDA) analysis. Discussing the possible origin of the mountain species in the Silesian Uplands one can consider migration routes from two directions: from the Sudety Mts. or from the Carpathian Mts. (located approximately 400 km south-west from a study area and 50-100 km south, respectively). Another possible explanation is that the species had a wider range during the glaciations and survived here in refugia.},

note = {6},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-80053947088,

title = {Applicability of functional groups concept in analysis of spatiotemporal vegetation changes on manmade habitats},

author = { G. Woźniak and D. Chmura and A. Błońska and B. Tokarska-Guzik and E.M. Sierka},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-80053947088&partnerID=40&md5=96e07712a5ad05045f1430c4ea0e9a40},

issn = {12301485},

year  = {2011},

date = {2011-01-01},

journal = {Polish Journal of Environmental Studies},

volume = {20},

number = {3},

pages = {623-631},

abstract = {The immense variety in plant diversity at the species level might explain why it is so difficult to establish strict generalizations in vegetation dynamics. In the last two decades many published research reports have shown that the introduction of the concept of plant functional groups (PEG) into the analysis of vegetation dynamics might be more informative in explaining spatiotemporal changes of vegetation than analysis based only on species composition. The spontaneous vegetation development observed on post-industrial manmade habitats (coal-mine heaps in the Silesian Upland; southern Poland), which are different in age provide an excellent opportunity to study the changes of participation of species representing the analyzed PFG. In this study a vast range of life history features were taken into account in order to find which of them are the most explicable (not redundant) in terms of changes in species composition in time during vegetation development. The study showed that during vegetation development in manmade habitats some features undergo variation over time and their importance depends on the developmental phase of succession/colonization processes. The results revealed that the most explanatory PFG's are plant height, leaf shape and area, root system, seed weight, and photo-synthetic pathway. It is impossible to recommend one closed set of species feature categories to provide the best explanation of spatiotemporal changes of vegetation on manmade habitats during all developmental stages, because the significance of a different plant's features varies in the following phases of vegetation development.},

note = {14},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-0041082538,

title = {The flora and vegetation of an old solvay process tip in Jaworzno (Upper Silesia, Poland)},

author = { E.V.J. Cohn and A. Rostański and B. Tokarska-Guzik and I.C. Trueman and G. Woźniak},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-0041082538&partnerID=40&md5=7f68a82d364c67fc2afbc35ebf95cebc},

issn = {00016977},

year  = {2001},

date = {2001-01-01},

journal = {Acta Societatis Botanicorum Poloniae},

volume = {70},

number = {1},

pages = {47-60},

publisher = {Polish Botanical Society},

abstract = {This paper demonstrates the flora, plant communities and substrates of an old solvay process spoil tip in Upper Silesia, Poland. In an area of 15 000 m2 there are growing 136 vascular plant species. The flora is characterised by the preponderance of Asteraceae - species and long-lived perennial herbs, many of them coming from meadows and grasslands. Ninety-five percent of species are apophytes despite the anthropogenic origin of the site. A majority of species are associated with moderately dry, base-rich soils with low or moderate levels of nitrogen. The site is shown to be an important refuge for some protected species, montane species and other elements uncommon in the local flora. An analysis of a series of samples used a methodology based on the assessment of percentage cover of particular species and multivariate analysis based on TWINSPAN. Both suggested a relatively high overall similarity between the samples with minor variations associated with moister substrates. Elemental analysis and pH determinations of soil samples associated with the relevés revealed a narrow range of pH and an absence of any strong concentrations of heavy metals. A redundancy analysis of the soil-plant relationships suggested that the strongest trend of differentiation was most closely associated with a phosphate gradient, and the next strongest was pH and possibly waterlogging. The most species-rich vegetation was associated with low phosphate and high pH levels. The results could be interpreted to suggest that processes of soil development and plant succession are slow but nevertheless perceptible, with implications for future loss of diversity. The vegetation constitutes an assemblage essentially of one type showing only weak relationships with described vegetation types such as Molinio-Arrhenatheretea meadow, FestucoBrometea grassland and Caricetalia davallianae mire. The results also suggest that the vegetation of the site is of considerable value for nature conservation. The site should be protected and be the subject of further research.},

note = {19},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-0034436020,

title = {Reynoutria x bohemica (Polygonaceae) - A new taxon to the Polish flora [Reynoutria x bohemica (Polygonaceae) - Nowy takson we florze Polski]},

author = { B. Fojcik and B. Tokarska-Guzik},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-0034436020&partnerID=40&md5=7842e9ec9fae97912a2024d16749ffad},

issn = {1640629X},

year  = {2000},

date = {2000-01-01},

journal = {Fragmenta Floristica et Geobotanica Polonica},

volume = {7},

pages = {63-71},

abstract = {Reynoutria × bohemica Chrtek & Chrtková is a hybrid between Reynoutria japonica Houtt. and R. sachalinensis (F. Schmidt) Nakai. Till now this taxon has been described from the Czech Republic, Germany, the British Isles and Hungary. Recently a few stands of R. × bohemica have been found in towns of South Poland (Katowice, Wrocław, Zabrze, Sosnowiec, Mikołów). Intermediate size and shape of leaves and type of hairs of the lower epidermis of leaves are the characteristic features which makes it possible to distinguish it from the other taxa (Table 1). The distribution of all the Reynoutria taxa in Katowice has been studied using a method of mapping the species on a grid of squares with a side 1 kilometre. These fields represent a decimal expansion of the grid of squars accepted in the ATPOL (ZAJAC 1978). R. japonica occurs very frequently in this area, R. × bohemica grows fairly frequently while R. sachalinensis is rather rare. The range and frequency of occurrence of the hybrid seems to be depend on presence of R. sachalinensis.},

note = {10},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{2-s2.0-0031401671,

title = {Differentiation and distribution of the genus Phalaris (Poaceae) in Katowice Province (Southern Poland)},

author = { B. Tokarska-Guzik},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-0031401671&partnerID=40&md5=157841726f6f35e05d1d44f65c89a662},

issn = {0015931X},

year  = {1997},

date = {1997-01-01},

journal = {Fragmenta Floristica et Geobotanica},

volume = {42},

number = {2},

pages = {327-337},

abstract = {The author describes the morphological variability in the two species of Phalaris L. occurring in Poland. The paper includes a key to the determination of these species and their distribution maps in Katowice Province.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}