Cloud Forest Tree Growth Responses to Climate and Drought Vary by Island and Species in the Macaronesian Region

作者：María A. García‐López, Ana I. García‐Cervigón, Rui B. Elias, Victoria Calvo‐Donate, José María Fernández‐Palacios, Miguel García‐Hidalgo, Susana Gómez‐González, Manuela Gouveia, Miguel Menezes de Sequeira, José Miguel Olano, David S. Pescador, Gabriel Sangüesa‐Barreda, Vicente Rozas · 发表于：Journal of Biogeography · 年份：2025 · DOI：10.1111/jbi.15091 · 被引用次数：4 · 研究领域：Plant Water Relations and Carbon Dynamics、Tree-ring climate responses、Forest ecology and management

ABSTRACT Aim Macaronesian cloud forests are insular ecosystems subjected to local environmental variability, but the responses of their tree species to climate variations have never been studied. Our aim was to assess how the variation in environmental conditions associated with the geographical location of several islands in three Macaronesian archipelagos affects the growth patterns and drought‐resistance of the dominant cloud forests trees. Location Azores, Madeira and Canary archipelagos. Portugal and Spain. Taxon Lauraceae, Aquifoliaceae, Clethraceae, Oleaceae, Rosaceae and Cupressaceae. Methods We assessed variations in the radial growth response of 10 cloud forest tree species from 18 populations on 5 islands along a geographical gradient in Macaronesia. We quantified the influence of local climatic variables and North Atlantic Oscillation (NAO) and East Atlantic Pattern (EA) circulation patterns on tree growth and how drought events affected to the resistance, recovery and resilience indices estimated for these species. Results Trees from the same island showed similar growth patterns, particularly in islands with marked hydric stress. In Madeira and the Canary Islands, radial growth was mainly determined by water availability, winter NAO negatively affected growth and droughts caused abrupt narrow growth‐ring width. In the Azores, the effect of the EA was positive, as it increased temperature and relative humidity and promoted growth. Trees from wetter environments d...