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Auteur Lenka Moravcová |
Documents disponibles écrits par cet auteur (5)
Affiner la rechercheCatalogue of alien plants of the Czech Republic (2nd edition) : checklist update, taxonomic diversity and invasion patterns / Petr Pyšek (2012)
Titre : Catalogue of alien plants of the Czech Republic (2nd edition) : checklist update, taxonomic diversity and invasion patterns Type de document : Tiré à part de revue Auteurs : Petr Pyšek ; Jiří Danihelka (1968-) ; Jiří Sádlo (1958-) ; Jindrich Chrtek ; Milan Chytrý (1967-) ; Vojtěch Jarošík (1958-2013) ; Zdenek Kaplan ; František Krahulec ; Lenka Moravcová ; Jan Pergl (1977-) ; Kateřina Štajerová ; Lubomír Tichý Année de publication : 2012 Importance : 155–255 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes
[CBNPMP-Géographique] République TchèqueRésumé : A complete list of all alien taxa ever recorded in the flora of the Czech Republic is presented as an update of the original checklist published in 2002. New data accumulated in the last decade are incorporated and the listing and status of some taxa are reassessed based on improved knowledge. Alien flora of the Czech Republic consists of 1454 taxa listed with information on their taxonomic position, life history, geographic origin (or mode of origin, distinguishing anecophyte and hybrid), invasive status (casual; naturalized but not invasive; invasive), residence time status (archaeophyte vs neophyte), mode of introduction into the country (accidental, deliberate), and date of the first record. Additional information on species performance that was not part of the previous catalogue, i.e. on the width of species’ habitat niches, their dominance in invaded communities, and impact, is provided. The Czech alien flora consists of 350 (24.1%) archaeophytes and 1104 (75.9%) neophytes. The increase in the total number of taxa compared to the previous catalogue (1378) is due to addition of 151 taxa and removal of 75 (39 archaeophytes and 36 neophytes), important part of the latter being the reclassification of 41 taxa as native, mostly based on archaeobotanical evidence. The additions represent taxa newly recorded since 2002 and reported in the national literature; taxa resulting from investigation of sources omitted while preparing the previous catalogue; redetermination of previously reported taxa; reassessment of some taxa traditionally considered native for which the evidence suggests the opposite; and inclusion of intraspecific taxa previously not recognized in the flora. There are 44 taxa on the list that are reported in the present study for the first time as aliens introduced to the Czech Republic or escaped from cultivation: Abies concolor, A. grandis, A. nordmanniana, Avena sterilis subsp. ludoviciana, A. ×vilis, Berberis julianae, B. thunbergii, Bidens ferulifolius, Buddleja alternifolia, Buglossoides incrassata subsp. splitgerberi, Buxus sempervirens, Corispermum declinatum, Cotoneaster dielsianus, C. divaricatus, Euphorbia myrsinites, Gleditsia triacanthos, Helleborus orientalis, Hieracium heldreichii, Koelreuteria paniculata, Lonicera periclymenum, Lotus ornithopodioides, Malus baccata, M. pumila, Miscanthus sacchariflorus, Morus alba, Muscari armeniacum, Paeonia lactiflora, Pennisetum alopecuroides, Pinguicula crystallina subsp. hirtiflora, P. grandiflora subsp. rosea, Podophyllum hexandrum, Pyracantha coccinea, Rhodotypos scandens, Rumex patientia × R. tianschanicus ‘Uteuša’, Salix cordata, Sarracenia purpurea, Sasa palmata ‘Nebulosa’, Scolymus maculatus, Spiraea japonica, Tagetes tenuifolia, Thuja occidentalis, Trifolium badium, Vaccinium corymbosum and Viburnum rhytidophyllum. All added and deleted taxa are commented on. Of the total number of taxa, 985 are classified as casuals, 408 as naturalized but not invasive, and 61 as invasive. The reduction in the number of invasive taxa compared to the previous catalogue is due to a more conservative approach adopted here; only taxa that currently spread are considered invasive. Casual taxa are strongly over-represented among neophytes compared to archaeophytes (76.7% vs 39.4%), while naturalized but non-invasive taxa follow the reversed pattern (18.8% vs 57.4). However, these two groups do not significantly differ in the proportion of invasive taxa. Of introduced neophytes, 250 taxa (22.6%) are considered vanished, i.e. no longer present in the flora, while 23.3% became naturalized, and 4.5% invasive. In addition to the traditional classification based on introduction–naturalization–invasion continuum, taxa were classified into 18 population groups based on their long-term trends in metapopulation dynamics in the country, current state of their populations, and link to the propagule pressure from cultivation. Mapping these population groups onto the unified framework for biological invasions introduced by Blackburn et al. in 2011 made it possible to quantify invasion failures, and boom-and-busts, in the Czech alien flora. Depending on inclusion criteria (whether or not extinct/vanished taxa and hybrids are considered), alien taxa ever recorded in the Czech Republic contribute 29.7–33.1% to the total country’s plant diversity; taking into account only naturalized taxa, a permanent element of the country’s flora, the figure is 14.4–17.5%. Analysis of the dates of the first record, known for 771 neophytes, indicates that alien taxa in the flora have been increasing at a steady pace without any distinct deceleration trend; by extrapolating this data to all 1104 neophytes recorded it is predicted that the projected number would reach 1264 in 2050. Deliberate introduction was involved in 747 cases (51.4%), the remaining 48.6% of taxa are assumed to have arrived by unintentional pathways. Archaeophytes are more abundant in landscapes, occupy on average a wider range of habitat types than neophytes, but reach a lower cover in plant communities. The alien flora is further analysed with respect to representation of genera and families, origin and life history. Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=135312 Pyšek, Petr, Danihelka, Jiří (1968-), Sádlo, Jiří (1958-), Chrtek, Jindrich, Chytrý, Milan (1967-), Jarošík, Vojtěch (1958-2013), Kaplan, Zdenek, Krahulec, František, Moravcová, Lenka, Pergl, Jan (1977-), Štajerová, Kateřina, Tichý, Lubomír 2012 Catalogue of alien plants of the Czech Republic (2nd edition) : checklist update, taxonomic diversity and invasion patterns. Preslia, 84 : 155–255.Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 25251B PEE Tiré à part Bureaux PEE Consultable Documents numériques
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Article (2012)Adobe Acrobat PDFCatalogue of alien plants of the Czech Republic (2nd edition) : checklist update, taxonomic diversity and invasion patterns Electronic Appendix 1. / Petr Pyšek in Preslia, 84 (2012)
Titre : Catalogue of alien plants of the Czech Republic (2nd edition) : checklist update, taxonomic diversity and invasion patterns Electronic Appendix 1. Type de document : Électronique Auteurs : Petr Pyšek ; Jiří Danihelka (1968-) ; Jiří Sádlo (1958-) ; Jindrich Chrtek ; Milan Chytrý (1967-) ; Vojtěch Jarošík (1958-2013) ; Zdenek Kaplan ; František Krahulec ; Lenka Moravcová ; Jan Pergl (1977-) ; Kateřina Štajerová ; Lubomír Tichý Année de publication : 2012 Article en page(s) : 3 p. Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes
[CBNPMP-Géographique] République TchèquePermalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=142482
in Preslia > 84 (2012) . - 3 p.Pyšek, Petr, Danihelka, Jiří (1968-), Sádlo, Jiří (1958-), Chrtek, Jindrich, Chytrý, Milan (1967-), Jarošík, Vojtěch (1958-2013), Kaplan, Zdenek, Krahulec, František, Moravcová, Lenka, Pergl, Jan (1977-), Štajerová, Kateřina, Tichý, Lubomír 2012 Catalogue of alien plants of the Czech Republic (2nd edition) : checklist update, taxonomic diversity and invasion patterns Electronic Appendix 1. Preslia, 84: 3 p..Documents numériques
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Appendice 1 (2012)Adobe Acrobat PDF
Titre : Catalogue of alien plants of the Czech Republic (2nd edition) : checklist update, taxonomic diversity and invasion patterns Electronic Appendix 2 Type de document : Électronique Auteurs : Petr Pyšek ; Jiří Danihelka (1968-) ; Jiří Sádlo (1958-) ; Jindrich Chrtek ; Milan Chytrý (1967-) ; Vojtěch Jarošík (1958-2013) ; Zdenek Kaplan ; František Krahulec ; Lenka Moravcová ; Jan Pergl (1977-) ; Kateřina Štajerová ; Lubomír Tichý Année de publication : 2012 Article en page(s) : 2 p. Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes
[CBNPMP-Géographique] République TchèquePermalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=142483
in Preslia > 84 (2012) . - 2 p.Pyšek, Petr, Danihelka, Jiří (1968-), Sádlo, Jiří (1958-), Chrtek, Jindrich, Chytrý, Milan (1967-), Jarošík, Vojtěch (1958-2013), Kaplan, Zdenek, Krahulec, František, Moravcová, Lenka, Pergl, Jan (1977-), Štajerová, Kateřina, Tichý, Lubomír 2012 Catalogue of alien plants of the Czech Republic (2nd edition) : checklist update, taxonomic diversity and invasion patterns Electronic Appendix 2. Preslia, 84: 2 p..Documents numériques
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Appendice 2 (2012)Adobe Acrobat PDF
Titre : Differences in germination and seedling establishment of alien and native Impatiens species Type de document : Électronique Auteurs : Irena Perglova ; Jan Pergl (1977-) ; Hana Skalova ; Lenka Moravcová ; Vojtěch Jarošík (1958-2013) ; Petr Pyšek Année de publication : 2009 Article en page(s) : 357-375 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Ecologie de la germination
[CBNPMP-Thématique] Physiologie de la germination
[CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes
[CBNPMP-Thématique] Banque de semencesMots-clés : Impatiens Résumé : Comparative studies of closely related species may provide useful insights into the effect of species traits on invasion success since some of the biases associated with multispecies studies, such as phylogenetic effects, are considerably reduced by virtue of the experimental design. In this study seed and seedling traits of three congeneric alien species in Europe, differing in their region of origin, invasion status and history (Impatiens glandulifera, I. parviflora, I. capensis), were compared with the native I. noli-tangere in laboratory and common garden experiments. Seeds of I. glandulifera required the shortest period of stratification, germinated well both under laboratory and experimental garden conditions and the seedlings produced more biomass than those of the other species. Seeds of I. parviflora required a longer period of stratification, had the highest percentage germination but seedling emergence in the experimental garden was poorer than in I. glandulifera. Neither of these two species invasive in the Czech Republic formed soil seed banks. The native I. noli-tangere had the lowest percentage germination and formed a short-term persistent seed bank. Impatiens capensis germinated well in the laboratory, had the highest seedling emergence in the garden and its seed remained viable in the soil for three years. This indicates that in terms of germination and emergence, this species is comparable with the two invasive alien congeners and there appear to be no constraints to its invasion in the Czech Republic where it does not occur yet. Its absence may be due to a low propagule pressure; in the national flora I. capensis is listed as a potential future invader without mentioning it being cultivated in this country. Our results indicate that differences in the invasiveness of three alien species of balsams in the temperate zone of Central Europe can be attributed, at least in part, to their differing performances in the early stages of their life cycle. The short period of time required for seed stratification and the high seedling biomass of I. glandulifera might have increased its invasion potential compared to other Impatiens species occurring in the Czech Republic. Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=142551
in Preslia > 81 (2009) . - 357-375Perglova, Irena, Pergl, Jan (1977-), Skalova, Hana, Moravcová, Lenka, Jarošík, Vojtěch (1958-2013), Pyšek, Petr 2009 Differences in germination and seedling establishment of alien and native Impatiens species. Preslia, 81: 357-375.Documents numériques
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Article (2009)URL
Titre : Naturalized plants have smaller genomes than their non-invading relatives: a flow cytometric analysis of the Czech alien flora Type de document : Électronique Auteurs : M Kubešová ; Lenka Moravcová ; J Suda ; Vojtěch Jarošík (1958-2013) ; Petr Pyšek Année de publication : 2010 Article en page(s) : 81-96 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes Résumé : Genome size has been suggested as one of the traits associated with invasiveness of plant species. To provide a quantitative insight into the role of this trait, we estimated nuclear DNA content in 93 alien species naturalized in the Czech Republic, belonging to 32 families, by using flow cytometry, and compared it with the values reported for non-invading congeneric and confamilial species from the Plant DNA C-values database. Species naturalized in the Czech Republic have significantly smaller genomes than their congeners not known to be naturalized or invasive in any part of the world. This trend is supported at the family level: alien species naturalized in the Czech flora have on average a smaller genome than is the mean value for non-invading confamilials. Moreover, naturalized and non-invading species clearly differed in the frequency of five genome size categories; this difference was mainly due to very small genomes prevailing and intermediate to very large genomes under-represented in the former group. Our results provide the first quantitative support for association of genome size with invasiveness, based on a large set of alien species across a number of plant families. However, there was no difference in the genome size of invasive species compared to naturalized but non-invasive. This suggests that small genome size provides alien plants with an advantage already at the stage of naturalization and need not be necessarily associated with the final stage of the process, i.e. invasion. Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=142462
in Preslia > 82 (2010) . - 81-96Kubešová, M, Moravcová, Lenka, Suda, J, Jarošík, Vojtěch (1958-2013), Pyšek, Petr 2010 Naturalized plants have smaller genomes than their non-invading relatives: a flow cytometric analysis of the Czech alien flora. Preslia, 82: 81-96.Documents numériques
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Article (2010)Adobe Acrobat PDF
