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Charting trends in the evolution of the La Alhambra forest (Granada, Spain) through analysis of pollen-emission dynamics over time

Author

Listed:
  • Paloma Cariñanos

    (University of Granada)

  • Manuel Casares-Porcel

    (University of Granada)

  • Ana Valle Díaz Guardia

    (University of Granada)

  • Rafael De Cruz-Márquez

    (Alhambra and Generalife Management Board)

  • Consuelo Díaz Guardia

    (University of Granada)

Abstract

Changing climate conditions are having an appreciable impact both on the adaptive response of the species growing in urban and peri-urban forests (UPF) and on their evolutionary dynamics. This study sought to chart the evolution and pollen dynamics of major species growing in the La Alhambra peri-urban forest (Granada, Spain) over the last 22 years, to examine correlations with weather-related parameters and to estimate potential trends in the event of future climate change. Findings showed that overall pollen levels have gradually increased over the study period, reflecting both plant species diversification and the ability of Mediterranean species—particularly Pinus and Quercus—to adapt to short-term water stress situations. Nevertheless, the climate conditions expected over the coming years in the Mediterranean region, with considerable increase in winter temperatures and a drop in precipitation by up to 24 % for summer rainfall, there is likely to be a reduction in the intensity of pollen emissions, at least from species with strict environmental requirements. The results confirm that pollen emission is a valuable biological indicator for estimating the adaptive response of various species and the resilience of the forest mass to climate-change events.

Suggested Citation

  • Paloma Cariñanos & Manuel Casares-Porcel & Ana Valle Díaz Guardia & Rafael De Cruz-Márquez & Consuelo Díaz Guardia, 2016. "Charting trends in the evolution of the La Alhambra forest (Granada, Spain) through analysis of pollen-emission dynamics over time," Climatic Change, Springer, vol. 135(3), pages 453-466, April.
    • Handle: RePEc:spr:climat:v:135:y:2016:i:3:d:10.1007_s10584-015-1589-6
    DOI: 10.1007/s10584-015-1589-6
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    References listed on IDEAS

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    1. Paloma Cariñanos & Consuelo Díaz de la Guardia & Jose Algarra & Concepción Linares & José Irurita, 2013. "The pollen counts as bioindicator of meteorological trends and tool for assessing the status of endangered species: the case of Artemisia in Sierra Nevada (Spain)," Climatic Change, Springer, vol. 119(3), pages 799-813, August.
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