A method for producing airborne pollen source inventories: An example of Ambrosia (ragweed) on the Pannonian Plain

Skjøth, Carsten Ambelas; Smith, Matt; Šikoparija, Branko; Stach, Alicja; Myszkowska, Dorota; Kasprzyk, Idalia; Radišić, Predrag; Stjepanović, Barbara; Hrga, Ivana; Apatini, D.; Magyar, Donát; Páldy, Anna; Ianovici, Nıcoleta

doi:10.1016/j.agrformet.2010.05.002

Cited by 93 publications

(103 citation statements)

References 42 publications

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“…Common ragweed is a pioneer plant that is known to prefer open, disturbed sites (Essl et al 2009) and tends to grow in suitable habitats if two conditions are fulfilled (Skjøth et al 2010): (1) available seeds; (2) soil disturbance. For this reason, major construction works in the Milan area 2000-2013 were examined in order to determine whether changes in land use could be related to the decrease in airborne concentrations of Ambrosia pollen in 2013.…”

Section: Examining Land Use Change In the Milan Areamentioning

confidence: 99%

Is the recent decrease in airborne Ambrosia pollen in the Milan area due to the accidental introduction of the ragweed leaf beetle Ophraella communa?

Bonini¹,

Šikoparija

Prentović

et al. 2015

Aerobiologia

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This study aims to determine whether a significant decrease in airborne concentrations of Ambrosia pollen witnessed in the north-west of the Province of Milan in Northern Italy could be explained by environmental factors such as meteorology, or whether there is evidence to support the hypothesis that the decrease was related to the presence of large numbers of the oligophagous Ophraella communa leaf beetles that are used as a biological control agent against Ambrosia in other parts of the world. Airborne concentrations of Ambrosia, Cannabaceae and Urticaceae pollen data (2000-2013) were examined for trends over time and correlated with meteorological data. The amount of Ambrosia pollen recorded annually during the main flowering period of Ambrosia (AugustSeptember) was entered into linear regression models with meteorological data in order to determine whether the amount of airborne Ambrosia pollen recorded in 2013 was lower than would normally be expected based on the prevailing weather conditions. There were a number of significant correlations between concentrations of airborne Ambrosia, Cannabaceae and Urticaceae pollen, as well as between airborne pollen concentrations and daily and monthly meteorological data. The linear regression models greatly overestimated the amount of airborne Ambrosia pollen in 2013. The results of the regression analysis support the hypothesis that the observed decrease in airborne Ambrosia pollen may indeed be related to the presence of large numbers of O. communa in the Milan area, as the drastic decrease in airborne Ambrosia pollen in 2013 cannot be explained by meteorology alone.

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Section: Examining Land Use Change In the Milan Areamentioning

confidence: 99%

Is the recent decrease in airborne Ambrosia pollen in the Milan area due to the accidental introduction of the ragweed leaf beetle Ophraella communa?

Bonini¹,

Šikoparija

Prentović

et al. 2015

Aerobiologia

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“…In particular a few stations with particularly high concentrations protruding from surrounding sites (for example, ITMAGE and ROUSSILLON) have a large impact on the results of validation. We compared our cross validation (eight or nine sites left out each time) with three papers about ragweed pollen source estimation over the Pannonian Plain, France and Austria (Skjøth et al, 2010;Karrer et al, 2015). Their cross validations (one site left out each time) show corresponding correlations of 0.37, 0.25, 0.63 and root mean squared error of 25, 16 and 3 %, respectively.…”

Section: First Guess Simulation and Calibration Of The Ragweed Densitymentioning

confidence: 99%

“…The International Association for Aerobiology (IAA) recommends for the samples reading at magnification 400× minimum of 3 longitudinal bands or at least 12 transverse bands or minimum 500 random fields (Jäger et al, 1995). The actual sampling methods (longitudinal, transverse or random) and magnifications may vary between the several national networks but are generally compliant (Jato et al, 2006;Skjøth et al, 2010;García-Mozo et al, 2009;Sofiev et al, 2015;Galán et al, 2014;Thibaudon et al, 2014). We based our study on daily pollen concentrations, although for some stations hourly data are available.…”

Section: Observed Pollen Concentrationsmentioning

confidence: 99%

“…Methods for producing ragweed pollen emission suitable for input to regional scale models have been developed in recent studies (Skjøth et al, 2010;Šikoparija et al, 2012;Chapman et al, 2014). Due to a lack of statistical information related to plant location and amount within a given geographical area, the bottom up approach to produce plant presence inventories is unpractical for most herbaceous allergenic species like ragweed.…”

Section: Liu Et Al: Ragweed Pollen Production and Dispersion Modementioning

confidence: 99%

“…Due to a lack of statistical information related to plant location and amount within a given geographical area, the bottom up approach to produce plant presence inventories is unpractical for most herbaceous allergenic species like ragweed. Quantitative habitat maps for such species are often derived from spatial variations in annual pollen sum, knowledge on plant ecology and detailed land cover information by top-down approach (such as Skjøth et at., 2010Karrer et al, 2015). Lately, an observation-based habitat map of ragweed has been published in the context of the ENV.B2/ETU/2010/0037 project "Assessing and controlling the spread and the effects of common ragweed in Europe" (Bullock et al, 2012).…”

Section: Liu Et Al: Ragweed Pollen Production and Dispersion Modementioning

confidence: 99%

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Ragweed pollen production and dispersion modelling within a regional climate system, calibration and application over Europe

et al. 2016

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Abstract. Common ragweed (Ambrosia artemisiifolia L.) is a highly allergenic and invasive plant in Europe. Its pollen can be transported over large distances and has been recognized as a significant cause of hay fever and asthma (D'Amato et al., 2007;Burbach et al., 2009). To simulate production and dispersion of common ragweed pollen, we implement a pollen emission and transport module in the Regional Climate Model (RegCM) version 4 using the framework of the Community Land Model (CLM) version 4.5. In this online approach pollen emissions are calculated based on the modelling of plant distribution, pollen production, species-specific phenology, flowering probability, and flux response to meteorological conditions. A pollen tracer model is used to describe pollen advective transport, turbulent mixing, dry and wet deposition.The model is then applied and evaluated on a European domain for the period 2000-2010. To reduce the large uncertainties notably due to the lack of information on ragweed density distribution, a calibration based on airborne pollen observations is used. Accordingly a cross validation is conducted and shows reasonable error and sensitivity of the calibration. Resulting simulations show that the model captures the gross features of the pollen concentrations found in Europe, and reproduce reasonably both the spatial and temporal patterns of flowering season and associated pollen concentrations measured over Europe. The model can explain 68.6, 39.2, and 34.3 % of the observed variance in starting, central, and ending dates of the pollen season with associated root mean square error (RMSE) equal to 4.7, 3.9, and 7.0 days, respectively. The correlation between simulated and observed daily concentrations time series reaches 0.69. Statistical scores show that the model performs better over the central Europe source region where pollen loads are larger and the model is better constrained.From these simulations health risks associated to common ragweed pollen spread are evaluated through calculation of exposure time above health-relevant threshold levels. The total risk area with concentration above 5 grains m −3 takes up 29.5 % of domain. The longest exposure time occurs on Pannonian Plain, where the number of days per year with the daily concentration above 20 grains m −3 exceeds 30.

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Allergenic Pollen

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A method for producing airborne pollen source inventories: An example of Ambrosia (ragweed) on the Pannonian Plain

Cited by 93 publications

References 42 publications

Is the recent decrease in airborne Ambrosia pollen in the Milan area due to the accidental introduction of the ragweed leaf beetle Ophraella communa?

Is the recent decrease in airborne Ambrosia pollen in the Milan area due to the accidental introduction of the ragweed leaf beetle Ophraella communa?

Ragweed pollen production and dispersion modelling within a regional climate system, calibration and application over Europe

Allergenic Pollen

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