Daily, seasonal, and interannual variability of airborne pollen of Araucaria angustifolia growing in the subtropical area of Argentina
Araucaria angustifolia is an anemophilous conifer native to Southern America threatened with extinction, with a noticeable decrease in its distribution area and seed production. To better understand the reproductive dynamics, the aerobiological curves obtained with Hirst methodology were analyzed du...
| Main Authors: | , , , |
|---|---|
| Format: | Artículo |
| Language: | Inglés |
| Published: |
Springer
2020
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.12123/6771 https://link.springer.com/article/10.1007%2Fs10453-020-09626-y https://doi.org/10.1007/s10453-020-09626-y |
| _version_ | 1855483876971905024 |
|---|---|
| author | Latorre, Fabiana Rotundo, Cristian Andres Abud Sierra, María Laura Fassola, Hugo Enrique |
| author_browse | Abud Sierra, María Laura Fassola, Hugo Enrique Latorre, Fabiana Rotundo, Cristian Andres |
| author_facet | Latorre, Fabiana Rotundo, Cristian Andres Abud Sierra, María Laura Fassola, Hugo Enrique |
| author_sort | Latorre, Fabiana |
| collection | INTA Digital |
| description | Araucaria angustifolia is an anemophilous conifer native to Southern America threatened with extinction, with a noticeable decrease in its distribution area and seed production. To better understand the reproductive dynamics, the aerobiological curves obtained with Hirst methodology were analyzed during 7 years in San Antonio (Misiones, Argentina), including productivity, seasonality, start, end, duration, and peak, along with the role of meteorological/seasonal climate factors. An alternation between 1 year of high pollen values (1685 pollen grains day m-3, on average), followed by 2 years of a progressive reduction (456 pollen grains day m-3, on average) in productivity, was observed. This pattern was negatively related to temperature during the month preceding pollination; August minimum temperature yielded the best fit (correlation coefficient r = - 0.9, p\0.01). In only 36 days, including October, 90% of the annual pollen was released. The daily pattern showed a curve with higher concentrations between hour 8 and hour 14. The daily maximum at hour 10 suggests pollen inputs from local sources. The eolic transport is limited due to the big size and weight of the grains and the unfavorable atmospheric conditions that prevail in this subtropical forest (high humidity and low wind speed). The average airborne
pollen curve showed a peak during the second fortnight of October. Rain induced a noticeable reduction in pollen concentration modifying the shape of the aerobiological curve. Aerobiological analyses provide reliable information for the design of conservation
strategies, such as ex situ planting and selective harvesting of seeds. |
| format | Artículo |
| id | INTA6771 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | INTA67712020-02-14T15:44:14Z Daily, seasonal, and interannual variability of airborne pollen of Araucaria angustifolia growing in the subtropical area of Argentina Latorre, Fabiana Rotundo, Cristian Andres Abud Sierra, María Laura Fassola, Hugo Enrique Araucaria Angustifolia Polen Clima Productividad Estacionalidad Argentina Pollen Climate Productivity Seasonality Araucaria angustifolia is an anemophilous conifer native to Southern America threatened with extinction, with a noticeable decrease in its distribution area and seed production. To better understand the reproductive dynamics, the aerobiological curves obtained with Hirst methodology were analyzed during 7 years in San Antonio (Misiones, Argentina), including productivity, seasonality, start, end, duration, and peak, along with the role of meteorological/seasonal climate factors. An alternation between 1 year of high pollen values (1685 pollen grains day m-3, on average), followed by 2 years of a progressive reduction (456 pollen grains day m-3, on average) in productivity, was observed. This pattern was negatively related to temperature during the month preceding pollination; August minimum temperature yielded the best fit (correlation coefficient r = - 0.9, p\0.01). In only 36 days, including October, 90% of the annual pollen was released. The daily pattern showed a curve with higher concentrations between hour 8 and hour 14. The daily maximum at hour 10 suggests pollen inputs from local sources. The eolic transport is limited due to the big size and weight of the grains and the unfavorable atmospheric conditions that prevail in this subtropical forest (high humidity and low wind speed). The average airborne pollen curve showed a peak during the second fortnight of October. Rain induced a noticeable reduction in pollen concentration modifying the shape of the aerobiological curve. Aerobiological analyses provide reliable information for the design of conservation strategies, such as ex situ planting and selective harvesting of seeds. EEA Montecarlo Fil: Latorre, Fabiana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mar del Plata. Instituto de Investigaciones Marinas y Costeras; Argentina. Universidad Nacional de Mar del Plata. Instituto de Investigaciones Marinas y Costeras; Argentina Fil: Rotundo, Cristian Andres. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Montecarlo; Argentina Fil: Abud Sierra, María Laura. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología; Argentina Fil: Fassola, Hugo Enrique. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Montecarlo; Argentina 2020-02-14T15:39:38Z 2020-02-14T15:39:38Z 2020-02 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/6771 https://link.springer.com/article/10.1007%2Fs10453-020-09626-y 0393-5965 1573-3025 https://doi.org/10.1007/s10453-020-09626-y eng info:eu-repo/semantics/restrictedAccess application/pdf Springer Aerobiologia 1-14 (publshed online: February 2020) |
| spellingShingle | Araucaria Angustifolia Polen Clima Productividad Estacionalidad Argentina Pollen Climate Productivity Seasonality Latorre, Fabiana Rotundo, Cristian Andres Abud Sierra, María Laura Fassola, Hugo Enrique Daily, seasonal, and interannual variability of airborne pollen of Araucaria angustifolia growing in the subtropical area of Argentina |
| title | Daily, seasonal, and interannual variability of airborne pollen of Araucaria angustifolia growing in the subtropical area of Argentina |
| title_full | Daily, seasonal, and interannual variability of airborne pollen of Araucaria angustifolia growing in the subtropical area of Argentina |
| title_fullStr | Daily, seasonal, and interannual variability of airborne pollen of Araucaria angustifolia growing in the subtropical area of Argentina |
| title_full_unstemmed | Daily, seasonal, and interannual variability of airborne pollen of Araucaria angustifolia growing in the subtropical area of Argentina |
| title_short | Daily, seasonal, and interannual variability of airborne pollen of Araucaria angustifolia growing in the subtropical area of Argentina |
| title_sort | daily seasonal and interannual variability of airborne pollen of araucaria angustifolia growing in the subtropical area of argentina |
| topic | Araucaria Angustifolia Polen Clima Productividad Estacionalidad Argentina Pollen Climate Productivity Seasonality |
| url | http://hdl.handle.net/20.500.12123/6771 https://link.springer.com/article/10.1007%2Fs10453-020-09626-y https://doi.org/10.1007/s10453-020-09626-y |
| work_keys_str_mv | AT latorrefabiana dailyseasonalandinterannualvariabilityofairbornepollenofaraucariaangustifoliagrowinginthesubtropicalareaofargentina AT rotundocristianandres dailyseasonalandinterannualvariabilityofairbornepollenofaraucariaangustifoliagrowinginthesubtropicalareaofargentina AT abudsierramarialaura dailyseasonalandinterannualvariabilityofairbornepollenofaraucariaangustifoliagrowinginthesubtropicalareaofargentina AT fassolahugoenrique dailyseasonalandinterannualvariabilityofairbornepollenofaraucariaangustifoliagrowinginthesubtropicalareaofargentina |