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Title: | Amazonian trees show increased edge effects due to Atlantic Ocean warming and northward displacement of the Intertropical Convergence Zone since 1980 |
Authors: | Albiero-Júnior, Alci Camargo, José Luís Campana Roig, Fidel Alejandro Schöngart, Jochen Pinto, Renan Mercuri Venegas-González, Alejandro Mario, Tomazello-filho, |
Keywords: | Climate Change Drought Ecosystems Oceanography Surface Waters Atlantic Ocean Dendroclimatology Forest Fragmentations Forest Fragments Tree Rings Forestry Rain Anthropogenic Effect Dendroclimatology Displacement Edge Effect Global Warming Habitat Fragmentation Intertropical Convergence Zone Tree Tree Ring Amazonas Atlantic Ocean Climate Change Controlled Study Environmental Factor Environmental Monitoring Environmental Temperature Forest Management Geographic Distribution Greenhouse Effect Nonhuman Plant Parameters Precipitation Priority Journal Scleronema Micranthum Summer Tree Tree Growth Climate Change Growth, Development And Aging Malvaceae Rainforest Tree Tropic Climate Amazon River Atlantic Ocean Malvaceae Scleronema Micranthum Climate Change Malvaceae Rain Rainforest Trees Tropical Climate |
Issue Date: | 2019 |
metadata.dc.publisher.journal: | Science of the Total Environment |
metadata.dc.relation.ispartof: | Volume 693 |
Abstract: | Recent investigations indicate a warming of Atlantic Ocean surface waters since 1980, probably influenced by anthropic actions, inducing rainfall intensification mainly during the rainy season and slight reductions during the dry season in the Amazon. Under these climate changes, trees in upland forests (terra firme) could benefit from the intensification of the hydrological cycle and could also be affected by the reduction of precipitation during the dry season. Results of dendrochronological analyses, spatial correlations and structural equation models, showed that Scleronema micranthum (Ducke) Ducke (Malvaceae) trees exposed in fragmented areas and to edge effects in Central Amazonian terra firme forest were more sensitive to the increase in the Atlantic Ocean surface temperature and consequent northward displacement of the Intertropical Convergence Zone, mainly during the dry season. Therefore, we proved that in altered and potentially more stressful environments such as edges of fragmented forests, recent anthropogenic climatic changes are exerting pressure on tree growth dynamics, inducing alterations in their performance and, consequently, in essential processes related to ecosystem services. Changes that could affect human well-being, highlighting the need for strategies that reduce edge areas expansion in Amazon forests and anthropic climate changes of the Anthropocene. © 2019 Elsevier B.V. |
metadata.dc.identifier.doi: | 10.1016/j.scitotenv.2019.07.321 |
Appears in Collections: | Artigos |
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