Future projections for terrestrial biomes indicate widespread warming and moisture reduction in forests up to 2100 in South America

Terrestrial biomes are the main reservoirs of biodiversity and CO2 on the planet. In South America, they play a crucial role in climate regulation and biodiversity conservation. Despite scientific advances and recent efforts, there is still no detailed analysis of trends in surface air temperature a...

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Main Authors: Luciano J.S. Anjos, Everaldo Barreiros de Souza, Calil Torres Amaral, Tassio Koiti Igawa, Peter Mann de Toledo
Format: Article
Language:English
Published: Elsevier 2021-01-01
Series:Global Ecology and Conservation
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2351989420309835
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author Luciano J.S. Anjos
Everaldo Barreiros de Souza
Calil Torres Amaral
Tassio Koiti Igawa
Peter Mann de Toledo
author_facet Luciano J.S. Anjos
Everaldo Barreiros de Souza
Calil Torres Amaral
Tassio Koiti Igawa
Peter Mann de Toledo
author_sort Luciano J.S. Anjos
collection DOAJ
description Terrestrial biomes are the main reservoirs of biodiversity and CO2 on the planet. In South America, they play a crucial role in climate regulation and biodiversity conservation. Despite scientific advances and recent efforts, there is still no detailed analysis of trends in surface air temperature and precipitation changes until the end of the 21st century and magnitude of change for South America’s terrestrial biomes. In this study, we used the annual mean of temperature and annual cumulative precipitation variables provided by WorldClim (version 2.1) from an ensemble of five Global Circulation Models from the most recent simulations of the CMIP6 project. We used four-time intervals between 2020 and 2100, combined at two climatic trajectories (SSP2-4.5 and SSP5-8.5), to map climate change scenarios’ trend magnitude in South America. Also, we evaluate the exposure level of the nine terrestrial biomes according to their respective vegetal cover densities. Our results indicate that in the two possible futures evaluated (SSP2-4.5 & SSP5-8.5), the terrestrial biomes of South America would be exposed to climatic conditions that are not analogous to the current ones. The results indicate a persistent and long-term annual temperature trend increase, indistinctly for all terrestrial biomes and a significant moisture reduction in forest biomes. The consolidation of such climate scenarios can make potentially modify water and carbon cycling patterns and promoting biodiversity loss, mainly at forest biomes, with probably more severe effects under the pessimistic scenario.
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spelling doaj.art-1b806900645a490fb0b865d2306fad3c2022-12-21T18:53:10ZengElsevierGlobal Ecology and Conservation2351-98942021-01-0125e01441Future projections for terrestrial biomes indicate widespread warming and moisture reduction in forests up to 2100 in South AmericaLuciano J.S. Anjos0Everaldo Barreiros de Souza1Calil Torres Amaral2Tassio Koiti Igawa3Peter Mann de Toledo4Campus de Parauapebas, Universidade Federal Rural da Amazônia - UFRA, Parauapebas, Pará, Brazil; Programa de Pós-Graduação em Ciências Ambientais, PPGCA - UFPA/MPEG/EMBRAPA, Belém, Pará, Brazil; Corresponding author. Universidade Federal Rural da Amazônia - Campus de Parauapebas, Pará, Brazil.Universidade Federal do Pará - Instituto de Geociências, Belém, Pará, BrazilPrograma de Pós-Graduação em Ciências Ambientais, PPGCA - UFPA/MPEG/EMBRAPA, Belém, Pará, BrazilPrograma de Pós-Graduação em Ciências Ambientais, PPGCA - UFPA/MPEG/EMBRAPA, Belém, Pará, BrazilInstituto Nacional de Pesquisas Espaciais, INPE - Divisão de Impactos, Adaptação e Vulnerabilidades, São José dos Campos, São Paulo, BrazilTerrestrial biomes are the main reservoirs of biodiversity and CO2 on the planet. In South America, they play a crucial role in climate regulation and biodiversity conservation. Despite scientific advances and recent efforts, there is still no detailed analysis of trends in surface air temperature and precipitation changes until the end of the 21st century and magnitude of change for South America’s terrestrial biomes. In this study, we used the annual mean of temperature and annual cumulative precipitation variables provided by WorldClim (version 2.1) from an ensemble of five Global Circulation Models from the most recent simulations of the CMIP6 project. We used four-time intervals between 2020 and 2100, combined at two climatic trajectories (SSP2-4.5 and SSP5-8.5), to map climate change scenarios’ trend magnitude in South America. Also, we evaluate the exposure level of the nine terrestrial biomes according to their respective vegetal cover densities. Our results indicate that in the two possible futures evaluated (SSP2-4.5 & SSP5-8.5), the terrestrial biomes of South America would be exposed to climatic conditions that are not analogous to the current ones. The results indicate a persistent and long-term annual temperature trend increase, indistinctly for all terrestrial biomes and a significant moisture reduction in forest biomes. The consolidation of such climate scenarios can make potentially modify water and carbon cycling patterns and promoting biodiversity loss, mainly at forest biomes, with probably more severe effects under the pessimistic scenario.http://www.sciencedirect.com/science/article/pii/S2351989420309835CMIP6 scenariosTemperature increaseMoisture lossClimatic crisis
spellingShingle Luciano J.S. Anjos
Everaldo Barreiros de Souza
Calil Torres Amaral
Tassio Koiti Igawa
Peter Mann de Toledo
Future projections for terrestrial biomes indicate widespread warming and moisture reduction in forests up to 2100 in South America
Global Ecology and Conservation
CMIP6 scenarios
Temperature increase
Moisture loss
Climatic crisis
title Future projections for terrestrial biomes indicate widespread warming and moisture reduction in forests up to 2100 in South America
title_full Future projections for terrestrial biomes indicate widespread warming and moisture reduction in forests up to 2100 in South America
title_fullStr Future projections for terrestrial biomes indicate widespread warming and moisture reduction in forests up to 2100 in South America
title_full_unstemmed Future projections for terrestrial biomes indicate widespread warming and moisture reduction in forests up to 2100 in South America
title_short Future projections for terrestrial biomes indicate widespread warming and moisture reduction in forests up to 2100 in South America
title_sort future projections for terrestrial biomes indicate widespread warming and moisture reduction in forests up to 2100 in south america
topic CMIP6 scenarios
Temperature increase
Moisture loss
Climatic crisis
url http://www.sciencedirect.com/science/article/pii/S2351989420309835
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