TY - JOUR AU - Lommen, STE AU - Jongejans, E AU - Leitsch-Vitalos, M AU - Tokarska-Guzik, B AU - Zalai, Mihály AU - Müller-Schärer, H AU - Karrer, G TI - Time to cut: population models reveal how to mow invasive common ragweed cost-effectively. JF - NEOBIOTA J2 - NEOBIOTA PY - 2018 IS - 39 SP - 53 EP - 78 PG - 26 SN - 1619-0033 DO - 10.3897/neobiota.39.23398 UR - https://m2.mtmt.hu/api/publication/27445442 ID - 27445442 AB - 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. LA - English DB - MTMT ER - TY - JOUR AU - Lommen, Suzanne T E AU - Hallmann, Caspar A AU - Jongejans, Eelke AU - Chauvel, Bruno AU - Leitsch-Vitalos, Melinda AU - Aleksanyan, Alla AU - Tóth, Peter AU - Preda, Cristina AU - Šćepanović, Maja AU - Onen, Huseyin AU - Tokarska-Guzik, Barbara AU - Anastasiu, Paulina AU - Dorner, Zita AU - Fenesi, Annamária AU - Karrer, Gerhard AU - Nagy, Katalin Erzsébet AU - Pinke, Gyula AU - Tiborcz, Viktor AU - Zagyvai, Gergely AU - Zalai, Mihály AU - Kazinczi, Gabriella AU - Leskovšek, Robert AU - Stešević, Danijela AU - Fried, Guillaume AU - Kalatozishvili, Levani AU - Lemke, Andreas AU - Müller-Schärer, Heinz TI - Explaining variability in the production of seed and allergenic pollen by invasive Ambrosia artemisiifolia across Europe JF - BIOLOGICAL INVASIONS J2 - BIOL INVASIONS VL - 20 PY - 2018 IS - 6 SP - 1475 EP - 1491 PG - 17 SN - 1387-3547 DO - 10.1007/s10530-017-1640-9 UR - https://m2.mtmt.hu/api/publication/3301479 ID - 3301479 AB - 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. LA - English DB - MTMT ER - TY - JOUR AU - Franz, Essl AU - Krisztina, Biró AU - Dietmar, Brandes AU - Olivier, Broennimann AU - James, M Bullock AU - Daniel, S Chapman AU - Bruno, Chauvel AU - Stefan, Dullinger AU - Boris, Fumanal AU - Antoine, Guisan AU - Gerhard, Karrer AU - Kazinczi, Gabriella AU - Christoph, Kueffer AU - Beryl, Laitung AU - Claude, Lavoie AU - Michael, Leitner AU - Thomas, Mang AU - Dietmar, Moser AU - Heinz, Müller-Schärer AU - Blaise, Petitpierre AU - Robert, Richter AU - Urs, Schaffner AU - Matt, Smith AU - Uwe, Starfinger AU - Robert, Vautard AU - Gero, Vogl AU - Moritz, von der Lippe AU - Swen, Follak TI - Biological Flora of the British Isles: Ambrosia artemisiifolia JF - JOURNAL OF ECOLOGY J2 - J ECOL VL - 103 PY - 2015 IS - 4 SP - 1069 EP - 1098 PG - 30 SN - 0022-0477 DO - 10.1111/1365-2745.12424 UR - https://m2.mtmt.hu/api/publication/2913398 ID - 2913398 LA - English DB - MTMT ER - TY - CONF AU - Tiborcz, Viktor AU - Zagyvai, Gergely AU - Korda, Márton AU - Schmidt, Dávid AU - Csiszár, Ágnes AU - Sporcic, Deán AU - Teleki, Balázs AU - Bartha, Dénes ED - Bohren, C ED - Bertossa, M ED - Schoenenberger, N ED - Rossinelli, M ED - Conedera, M TI - Distribution of invasive alien woody plant species in Hungary. T2 - 3rd International Symposium Environmental Weeds and Invasive Plants PB - European Weed Research Society (EWRS) PY - 2011 SP - 146 EP - 146 PG - 1 UR - https://m2.mtmt.hu/api/publication/1907122 ID - 1907122 LA - English DB - MTMT ER - TY - JOUR AU - Skjøth, CA AU - Smith, M AU - Šikoparija, B AU - Stach, A AU - Myszkowska, D AU - Kasprzyk, I AU - Radišić, P AU - Stjepanović, B AU - Hrga, I AU - Apatini, D AU - Magyar, Donát AU - Páldy, A AU - Ianovici, N TI - A method for producing airborne pollen source inventories: An example of Ambrosia (ragweed) on the Pannonian Plain JF - AGRICULTURAL AND FOREST METEOROLOGY J2 - AGR FOREST METEOROL VL - 150 PY - 2010 IS - 9 SP - 1203 EP - 1210 PG - 8 SN - 0168-1923 DO - 10.1016/j.agrformet.2010.05.002 UR - https://m2.mtmt.hu/api/publication/2718208 ID - 2718208 LA - English DB - MTMT ER - TY - JOUR AU - Pál, Róbert TI - Invasive plants threaten segetal weed vegetation of South Hungary JF - WEED TECHNOLOGY J2 - WEED TECHNOL VL - 18 PY - 2004 SP - 1314 EP - 1318 PG - 5 SN - 0890-037X DO - 10.1614/0890-037X(2004)018[1314:IPTSWV]2.0.CO;2 UR - https://m2.mtmt.hu/api/publication/1446479 ID - 1446479 N1 - Megjegyzés-21792909 : FN Thomson Reuters Web of Knowledge SU: S Megjegyzés-21947124 SU: S Megjegyzés-21794623 : FN Thomson Reuters Web of Knowledge SU: S Megjegyzés-21794301 : FN Thomson Reuters Web of Knowledge SU: S AB - Invasive plants threaten not only natural habitats but also the native weed associations of the agricultural land. The segetal (arable) weed vegetation in Hungary has changed greatly in recent decades, mainly through the decrease of diversity of arable field flora. This study deals with the role of invasive weeds in transforming the segetal weed communities in South Hungary. It can be stated that these invasives have a serious transforming effect on the natural arable weed associations. Some of the investigated plants and their frequency in the examined region are common ragweed (84%), horseweed (22%), annual fleabane (14%), johnsongrass (36%), and Italian cocklebur (7%). These plants were all frequent and dominant on the studied area, both on arable land and in vineyards. Some of the weed associations already bear the names of these community-forming species. LA - English DB - MTMT ER -