Analysis of Changes in Flowering Phases and Airborne Pollen Dispersion of the Genus Betula (Birch)

Veriankaitė, Laura; Šaulienė, Ingrida; Bukantis, Arūnas

doi:10.3846/jeelm.2010.16

Cited by 12 publications

(8 citation statements)

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“…Taking into consideration the fact that air temperature determines the processes of pollen release from plants (Veriankaitė et al 2010a) and the spread of particles may be determined by other meteorological parameters, the significance of air humidity for modeled processes was evaluated. The research results revealed (Fig.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of Meteorological Parameters Influence Upon Pollen Spread in the Atmosphere / Meteorologinių Parametrų Įtakos Žiedadulkių Sklaidai Atmosferoje Įvertinimas / Оценка Влияния Метеорологических Параметро Вн Адисперсию Пыльцыв Атмосфере

Veriankaitė

Šaulienė

Bukantis

2011

Journal of Environmental Engineering and Landscape Management

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The elements determining the meteorological conditions are the main parameters in processes of airborne pollen modeling. In modern research the influence of different meteorological element or their complex is analyzed basing upon the statistic methods or using dispersion models in which the possible influence of meteorological parameters upon airborne pollen is described in equations. The correlation of meteorological indicators and pollen concentration in the atmosphere fixed in Klaipėda Aerobiological Station is analyzed in this article. The coefficients of correlation of meteorological parameters and pollen concentration are calculated basing upon the Spearman's rank correlation method. The analysis of various factors was used for determining the complex influence of meteorological parameters upon the pollen concentration in the air. After evaluation of influence of meteorological parameters as separate factors one has determined that more than a half of analyzed pollen types showed statistically reliable (p < 0.05) correlation of pollen amount in the air and relative air humidity (89%), air temperature (74%) and amount of precipitation (52%). The investigation results showed that 37% of pollen amount of indicated plants genera and families in the atmosphere was determined by wind velocity. After evaluation of complex influence of meteorological factors on the concentration of pollen spread in the air one has determined that relative humidity and/or air temperature are one of the most significant environmental factors determining the amount of pollen in the atmosphere during the vegetation. Their influence was determined for all the three cases under study.

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Section: Resultsmentioning

confidence: 99%

Evaluation of Meteorological Parameters Influence Upon Pollen Spread in the Atmosphere / Meteorologinių Parametrų Įtakos Žiedadulkių Sklaidai Atmosferoje Įvertinimas / Оценка Влияния Метеорологических Параметро Вн Адисперсию Пыльцыв Атмосфере

Veriankaitė

Šaulienė

Bukantis

2011

Journal of Environmental Engineering and Landscape Management

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“…In Lithuania, the spatial variation of the start of flowering was considerable, differences could reach 24 days, and the values of the variation coefficients did not exceed 9%. Generally, Betula pendula started to flower at the beginning of May, with a tendency to significantly accelerate [14,25]. If birch flowering came earlier, the difference between the earliest and the latest flowering of plants in Lithuania increased.…”

Section: Discussionmentioning

confidence: 99%

“…In Lithuania in the 70s, Betula species started to flower mainly in May, and in the 90s in late April and the average advance was 10-15 days. At the beginning of the twenty-first century (2004)(2005)(2006)(2007)(2008) birches flowered even in the middle of April [14,25]. The authors showed warming as a cause of this.…”

Section: Discussionmentioning

confidence: 99%

“…It has major implications for the global carbon cycle, ecosystems, populations, individual species, shift in phenology, ecology of many living organisms (humans, plants, animals, fungi), public health, and economy [4,[8][9][10][11]. Plants strongly respond to interannual climatic variation so they are good indicator of the global environmental change, especially warming [8,[12][13][14]. During last decades the interest in phenology has been increased, resulting in many phenological researches [3,[15][16][17][18][19].…”

Section: Digital Signaturementioning

confidence: 99%

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The variation of the onset of Betula pendula (Roth.) flowering in Rzeszów, SE Poland: fluctuation or trend?

Kasprzyk

2016

Acta Agrobot

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The global rise in air temperature has major implications for ecosystems, populations, ecology of many living organisms, public health as well as economy. Plants, like silver birch (Betula pendula Roth.), strongly respond to the climatic variation. Therefore, the species is a good indicator of the global climate change, especially warming. The phenological observation was undertaken to verify the hypothesis on an acceleration of the start of Betula pendula pollen release in the season. The investigations were carried out in 2000-2015 (16 years) in the Rzeszów area, SE Poland. On average, Betula pendula started to pollinate in the middle of April; the difference between the earliest and latest dates was nearly 1 month. The full pollination started on 18 April, on average. The timing of pollination strongly depended on the course of weather in February and March. The most crucial was temperature in the first half of March. Considering the synergistic impact of meteorological parameters, the most important were temperature and rainfall in January and February, rainfall in March and temperature just before the pollination. It was found that North Atlantic Circulation influenced pollen release in Betula pendula. The positive North Atlantic Oscillation in March and in December-March periods resulted in pollination onset. Tendency towards warmer average annual temperature was recorded, however the timing of phenophases did not follow it. Despite the strong relationship with temperature there was no acceleration of Betula pendula pollination. Probably, the climate warming effect on the onset and duration in Betula pendula phenophases would be detectable in longer than a 16-year period.

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“…For instance, Menzel et al (2006) reported an advance of flowering around 2.5 days per decade from 1970 to 2000. The correlation between earlier pollen dispersal and increasing spring temperature has been widely demonstrated, e.g., in species belonging to the order Fagales in temperate climates (Bortenschlager and Bortenschlager 2005), and in Betula (Emberlin et al 2002;Frei and Gassner 2008;Yli-Panula et al 2009;Veriankaitė et al 2010 and references therein), Alnus (Emberlin et al 2007;Gonzáles-Parrado et al 2006;Rodríguez-Rajo et al 2006), and Castanea (Rodríguez-Rajo et al 2005. A similar advance with increasing winter/spring temperature has been observed also in Platanus (Norris-Hill 1998; Sabariego Ruiz et al 2008).…”

Section: Introductionmentioning

confidence: 95%

Models to predict the start of the airborne pollen season

et al. 2014

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Aerobiological data can be used as indirect but reliable measures of flowering phenology to analyze the response of plant species to ongoing climate changes. The aims of this study are to evaluate the performance of several phenological models for predicting the pollen start of season (PSS) in seven spring-flowering trees (Alnus glutinosa, Acer negundo, Carpinus betulus, Platanus occidentalis, Juglans nigra, Alnus viridis, and Castanea sativa) and in two summer-flowering herbaceous species (Artemisia vulgaris and Ambrosia artemisiifolia) by using a 26-year aerobiological data set collected in Turin (Northern Italy). Data showed a reduced interannual variability of the PSS in the summer-flowering species compared to the spring-flowering ones. Spring warming models with photoperiod limitation performed best for the greater majority of the studied species, while chilling class models were selected only for the early spring flowering species. For Ambrosia and Artemisia, spring warming models were also selected as the best models, indicating that temperature sums are positively related to flowering. However, the poor variance explained by the models suggests that further analyses have to be carried out in order to develop better models for predicting the PSS in these two species. Modeling the pollen season start on a very wide data set provided a new opportunity to highlight the limits of models in elucidating the environmental factors driving the pollen season start when some factors are always fulfilled, as chilling or photoperiod or when the variance is very poor and is not explained by the models.

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Analysis of Changes in Flowering Phases and Airborne Pollen Dispersion of the Genus Betula (Birch)

Cited by 12 publications

References 46 publications

The variation of the onset of Betula pendula (Roth.) flowering in Rzeszów, SE Poland: fluctuation or trend?

Models to predict the start of the airborne pollen season

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