TY  - JOUR
A1  - Weber, Michael
A1  - Scholz, Denis
A1  - Schröder-Ritzrau, Andrea
A1  - Deininger, Michael
A1  - Spötl, Christoph
A1  - Lugli, Federico
A1  - Mertz-Kraus, Regina
A1  - Jochum, Klaus Peter
A1  - Fohlmeister, Jens Bernd
A1  - Stumpf, Cintia F.
A1  - Riechelmann, Dana F. C.
T1  - Evidence of warm and humid interstadials in central Europe during early MISSUE 3 revealed by a multi-proxy speleothem record
JF  - Quaternary science reviews : the international multidisciplinary research and review journal
N2  - Marine Isotope Stage 3 (MIS 3, 57-27 ka) was characterised by numerous rapid climate oscillations (i.e., Dansgaard-Oeschger (D/O-) events), which are reflected in various climate archives. So far, MIS 3 speleothem records from central Europe have mainly been restricted to caves located beneath temperate Alpine glaciers or close to the Atlantic Ocean. Thus, MIS 3 seemed to be too cold and dry to enable speleothem growth north of the Alps in central Europe. Here we present a new speleothem record from Bunker Cave, Germany, which shows two distinct growth phases from 52.0 (+0.8, -0.5) to 50.9 (+0.6, -1.3) ka and 473 (+1.0, -0.6) to 42.8 (+/- 0.9) ka, rejecting this hypothesis. These two growth phases potentially correspond to the two warmest and most humid phases in central Europe during MIS 3, which is confirmed by pollen data from the nearby Eifel. The hiatus separating the two phases is associated with Heinrich stadial 5 (HS 5), although the growth stop precedes the onset of HS 5. The first growth phase is characterised by a fast growth rate, and Mg concentrations and Sr isotope data suggest high infiltration and the presence of soil cover above the cave. The second growth phase was characterised by drier, but still favourable conditions for speleothem growth. During this phase, the delta C-13 values show a significant decrease associated with D/O-event 12. The timing of this shift is in agreement with other MIS 3 speleothem data from Europe and Greenland ice core data. (C) 2018 Elsevier Ltd. All rights reserved.
KW  - Speleothems
KW  - Pleistocene
KW  - Palaeoclimatology
KW  - Europe
KW  - Dansgaard-Oeschger event
KW  - Marine isotope stage 3
KW  - Bunker cave
KW  - Multi-proxy approach
KW  - U-Th series
Y1  - 2018
U6  - https://doi.org/10.1016/j.quascirev.2018.09.045
SN  - 0277-3791
VL  - 200
SP  - 276
EP  - 286
PB  - Elsevier
CY  - Oxford
ER  - 
TY  - JOUR
A1  - Pyšek, Petr
A1  - Pergl, Jan
A1  - Essl, Franz
A1  - Lenzner, Bernd
A1  - Dawson, Wayne
A1  - Kreft, Holger
A1  - Weigelt, Patrick
A1  - Winter, Marten
A1  - Kartesz, John
A1  - Nishino, Misako
A1  - Antonova, Liubov A.
A1  - Barcelona, Julie F.
A1  - Cabezas, Francisco José
A1  - Cárdenas López, Dairon
A1  - Cárdenas-Toro, Juliana
A1  - Castańo, Nicolás
A1  - Chacón, Eduardo
A1  - Chatelain, Cyrille
A1  - Dullinger, Stefan
A1  - Ebel, Aleksandr L.
A1  - Figueiredo, Estrela
A1  - Fuentes, Nicol
A1  - Genovesi, Piero
A1  - Groom, Quentin J.
A1  - Henderson, Lesley
A1  - Inderjit, 
A1  - Kupriyanov, Andrey
A1  - Masciadri, Silvana
A1  - Maurel, Noëlie
A1  - Meerman, Jan
A1  - Morozova, Olʹga V.
A1  - Moser, Dietmar
A1  - Nickrent, Daniel
A1  - Nowak, Pauline M.
A1  - Pagad, Shyama
A1  - Patzelt, Annette
A1  - Pelser, Pieter B.
A1  - Seebens, Hanno
A1  - Shu, Wen-sheng
A1  - Thomas, Jacob
A1  - Velayos, Mauricio
A1  - Weber, Ewald
A1  - Wieringa, Jan J.
A1  - Baptiste, Maria P.
A1  - Kleunen, Mark van
T1  - Naturalized alien flora of the world
T1  - Naturalizovaná nepůvodní flóra světa
BT  - species diversity, taxonomic and phylogenetic patterns, geographic distribution and global hotspots of plant invasion
BT  - druhová diverzita, taxonomické a fylogenetické složení, geografické zákonitosti a globální ohniska rostlinných invazí
JF  - Preslia : the journal of the Czech Botanical Society
N2  - Using the recently built Global Naturalized Alien Flora (GloNAF) database, containing data on the distribution of naturalized alien plants in 483 mainland and 361 island regions of the world, we describe patterns in diversity and geographic distribution of naturalized and invasive plant species, taxonomic, phylogenetic and life-history structure of the global naturalized flora as well as levels of naturalization and their determinants. The mainland regions with the highest numbers of naturalized aliens are some Australian states (with New South Wales being the richest on this continent) and several North American regions (of which California with 1753 naturalized plant species represents the world’s richest region in terms of naturalized alien vascular plants). England, Japan, New Zealand and the Hawaiian archipelago harbour most naturalized plants among islands or island groups. These regions also form the main hotspots of the regional levels of naturalization, measured as the percentage of naturalized aliens in the total flora of the region. Such hotspots of relative naturalized species richness appear on both the western and eastern coasts of North America, in north-western Europe, South Africa, south-eastern Australia, New Zealand, and India. High levels of island invasions by naturalized plants are concentrated in the Pacific, but also occur on individual islands across all oceans. The numbers of naturalized species are closely correlated with those of native species, with a stronger correlation and steeper increase for islands than mainland regions, indicating a greater vulnerability of islands to invasion by species that become successfully naturalized. South Africa, India, California, Cuba, Florida, Queensland and Japan have the highest numbers of invasive species. Regions in temperate and tropical zonobiomes harbour in total 9036 and 6774 naturalized species, respectively, followed by 3280 species naturalized in the Mediterranean zonobiome, 3057 in the subtropical zonobiome and 321 in the Arctic. The New World is richer in naturalized alien plants, with 9905 species compared to 7923 recorded in the Old World. While isolation is the key factor driving the level of naturalization on islands, zonobiomes differing in climatic regimes, and socioeconomy represented by per capita GDP, are central for mainland regions. The 11 most widely distributed species each occur in regions covering about one third of the globe or more in terms of the number of regions where they are naturalized and at least 35% of the Earth’s land surface in terms of those regions’ areas, with the most widely distributed species Sonchus oleraceus occuring in 48% of the regions that cover 42% of the world area. Other widely distributed species are Ricinus communis, Oxalis corniculata, Portulaca oleracea, Eleusine indica, Chenopodium album, Capsella bursa-pastoris, Stellaria media, Bidens pilosa, Datura stramonium and Echinochloa crus-galli. Using the occurrence as invasive rather than only naturalized yields a different ranking, with Lantana camara (120 regions out of 349 for which data on invasive status are known), Calotropis procera (118), Eichhornia crassipes (113), Sonchus oleraceus (108) and Leucaena leucocephala (103) on top. As to the life-history spectra, islands harbour more naturalized woody species (34.4%) thanmainland regions (29.5%), and fewer annual herbs (18.7% compared to 22.3%). Ranking families by their absolute numbers of naturalized species reveals that Compositae (1343 species), Poaceae (1267) and Leguminosae (1189) contribute most to the global naturalized alien flora. Some families are disproportionally represented by naturalized aliens on islands (Arecaceae, Araceae, Acanthaceae, Amaryllidaceae, Asparagaceae, Convolvulaceae, Rubiaceae, Malvaceae), and much fewer so on mainland (e.g. Brassicaceae, Caryophyllaceae, Boraginaceae). Relating the numbers of naturalized species in a family to its total global richness shows that some of the large species-rich families are over-represented among naturalized aliens (e.g. Poaceae, Leguminosae, Rosaceae, Amaranthaceae, Pinaceae), some under-represented (e.g. Euphorbiaceae, Rubiaceae), whereas the one richest in naturalized species, Compositae, reaches a value expected from its global species richness. Significant phylogenetic signal indicates that families with an increased potential of their species to naturalize are not distributed randomly on the evolutionary tree. Solanum (112 species), Euphorbia (108) and Carex (106) are the genera richest in terms of naturalized species; over-represented on islands are Cotoneaster, Juncus, Eucalyptus, Salix, Hypericum, Geranium and Persicaria, while those relatively richer in naturalized species on the mainland are Atriplex, Opuntia, Oenothera, Artemisia, Vicia, Galium and Rosa. The data presented in this paper also point to where information is lacking and set priorities for future data collection. The GloNAF database has potential for designing concerted action to fill such data gaps, and provide a basis for allocating resources most efficiently towards better understanding and management of plant invasions worldwide.
KW  - alien species
KW  - distribution
KW  - Global Naturalized Alien Flora (GloNAF) database
KW  - invasive species
KW  - islands
KW  - life history
KW  - mainland
KW  - naturalized species
KW  - phylogeny
KW  - plant invasion
KW  - regional floras
KW  - species richness
KW  - taxonomy
KW  - zonobiome
Y1  - 2017
U6  - https://doi.org/10.23855/preslia.2017.203
SN  - 0032-7786
VL  - 89
IS  - 3
SP  - 203
EP  - 274
PB  - Czech Botanical Soc.
CY  - Praha
ER  - 
TY  - JOUR
A1  - Seebens, Hanno
A1  - Essl, Franz
A1  - Dawson, Wayne
A1  - Fuentes, Nicol
A1  - Moser, Dietmar
A1  - Pergl, Jan
A1  - Pysek, Petr
A1  - van Kleunen, Mark
A1  - Weber, Ewald
A1  - Winter, Marten
A1  - Blasius, Bernd
T1  - Global trade will accelerate plant invasions in emerging economies under climate change
JF  - Global change biology
N2  - Trade plays a key role in the spread of alien species and has arguably contributed to the recent enormous acceleration of biological invasions, thus homogenizing biotas worldwide. Combining data on 60-year trends of bilateral trade, as well as on biodiversity and climate, we modeled the global spread of plant species among 147 countries. The model results were compared with a recently compiled unique global data set on numbers of naturalized alien vascular plant species representing the most comprehensive collection of naturalized plant distributions currently available. The model identifies major source regions, introduction routes, and hot spots of plant invasions that agree well with observed naturalized plant numbers. In contrast to common knowledge, we show that the 'imperialist dogma,' stating that Europe has been a net exporter of naturalized plants since colonial times, does not hold for the past 60 years, when more naturalized plants were being imported to than exported from Europe. Our results highlight that the current distribution of naturalized plants is best predicted by socioeconomic activities 20 years ago. We took advantage of the observed time lag and used trade developments until recent times to predict naturalized plant trajectories for the next two decades. This shows that particularly strong increases in naturalized plant numbers are expected in the next 20 years for emerging economies in megadiverse regions. The interaction with predicted future climate change will increase invasions in northern temperate countries and reduce them in tropical and (sub) tropical regions, yet not by enough to cancel out the trade-related increase.
KW  - alien vascular plants
KW  - bioinvasion
KW  - climate warming
KW  - global spread
KW  - imperialist dogma
KW  - model
KW  - network of plant invasion
Y1  - 2015
U6  - https://doi.org/10.1111/gcb.13021
SN  - 1354-1013
SN  - 1365-2486
VL  - 21
IS  - 11
SP  - 4128
EP  - 4140
PB  - Wiley-Blackwell
CY  - Hoboken
ER  - 
TY  - JOUR
A1  - Essl, Franz
A1  - Dawson, Wayne
A1  - Kreft, Holger
A1  - Pergl, Jan
A1  - Pysek, Petr
A1  - van Kleunen, Mark
A1  - Weigelt, Patrick
A1  - Mang, Thomas
A1  - Dullinger, Stefan
A1  - Lenzner, Bernd
A1  - Moser, Dietmar
A1  - Maurel, Noelie
A1  - Seebens, Hanno
A1  - Stein, Anke
A1  - Weber, Ewald
A1  - Chatelain, Cyrille
A1  - Inderjit, 
A1  - Genovesi, Piero
A1  - Kartesz, John
A1  - Morozova, Olga
A1  - Nishino, Misako
A1  - Nowak, Pauline M.
A1  - Pagad, Shyama
A1  - Shu, Wen-sheng
A1  - Winter, Marten
T1  - Drivers of the relative richness of naturalized and invasive plant species on Earth
JF  - AoB PLANTS
N2  - Biological invasions are a defining feature of the Anthropocene, but the factors that determine the spatially uneven distribution of alien plant species are still poorly understood. Here, we present the first global analysis of the effects of biogeographic factors, the physical environment and socio-economy on the richness of naturalized and invasive alien plants. We used generalized linear mixed-effects models and variation partitioning to disentangle the relative importance of individual factors, and, more broadly, of biogeography, physical environment and socio-economy. As measures of the magnitude of permanent anthropogenic additions to the regional species pool and of species with negative environmental impacts, we calculated the relative richness of naturalized (= RRN) and invasive (= RRI) alien plant species numbers adjusted for the number of native species in 838 terrestrial regions. Socio-economic factors (per-capita gross domestic product (GDP), population density, proportion of agricultural land) were more important in explaining RRI (similar to 50 % of the explained variation) than RRN (similar to 40 %). Warm-temperate and (sub)tropical regions have higher RRN than tropical or cooler regions. We found that socio-economic pressures are more relevant for invasive than for naturalized species richness. The expectation that the southern hemisphere is more invaded than the northern hemisphere was confirmed only for RRN on islands, but not for mainland regions nor for RRI. On average, islands have similar to 6-fold RRN, and >3-fold RRI compared to mainland regions. Eighty-two islands (=26 % of all islands) harbour more naturalized alien than native plants. Our findings challenge the widely held expectation that socio-economic pressures are more relevant for plant naturalization than for invasive plants. To meet international biodiversity targets and halt the detrimental consequences of plant invasions, it is essential to disrupt the connection between socio-economic development and plant invasions by improving pathway management, early detection and rapid response.
KW  - Alien species richness
KW  - biogeography
KW  - invasion stages
KW  - islands
KW  - pressures
KW  - vascular plants
Y1  - 2019
U6  - https://doi.org/10.1093/aobpla/plz051
SN  - 2041-2851
VL  - 11
IS  - 5
PB  - Oxford Univ. Press
CY  - Oxford
ER  - 
TY  - JOUR
A1  - Buggisch, W.
A1  - Höhndorf, A.
A1  - Paech, H.-J.
A1  - Kleinschmidt, G.
A1  - Kreuzer, H.
A1  - Weber, Bernd
T1  - Stephenson bastion formation (palaeontology)
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Buggisch, W.
A1  - Paech, H.-J.
A1  - Weber, Bernd
T1  - The watts needle formation (palaeontology)
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Martin, D.
A1  - Weber, Bernd
T1  - Oxime ether analogs of sex pheromone components of turnip moth (Agrotis segetum SCHIFFERMÜLLER)
Y1  - 1994
ER  - 
TY  - JOUR
A1  - Thomson, M. R. A.
A1  - Weber, Bernd
T1  - A new and unusual fauna from the Blaiklock Glacier Group, Shackleton Range
Y1  - 1995
ER  - 
TY  - JOUR
A1  - Weber, Bernd
T1  - Fossilfunde in der Shackleton Range
Y1  - 1995
ER  - 
TY  - JOUR
A1  - Weber, Bernd
T1  - Mikrofossilien und Biostratigraphie jungproterozoischer und altpaläozoischer Sedimente der Shackleton Range
Y1  - 1995
ER  -