Brazilian montane rainforest expansion induced by Heinrich Stadial 1 event

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Pinaya, Jorge L. D. ^[1] ; Cruz, Francisco W. ^[2] ; Ceccantini, Gregorio C. T. ^[3] ; Correa, Pedro L. P. ^[1] ; Pitman, Nigel ^[4] ; Vemado, Felipe ^[5] ; Lopez, Maria del C. Armen S. ^[5] ; Pereira Filho, Augusto J. ^[5] ; Grohmann, Carlos H. ^[6] ; Chiessi, Cristiano M. ^[7] ; Strikis, Nicolas M. ^[8] ; Horak-Terra, Ingrid ^[9] ; Pinaya, Walter H. L. ^[10] ; de Medeiros, Vanda B. ^[2] ; Santos, Rudney de A. ^[2] ; Akabane, Thomas K. ^[2] ; Silva, Maicon A. ^[3] ; Cheddadi, Rachid ^[11] ; Bush, Mark ^[12] ; Henrot, Alexandra-Jane ^[13] ; Francois, Louis ^[13] ; Hambuckers, Alain ^[14] ; Boyer, Frederic ^[15] ; Carre, Matthieu ^[16] ; Coissac, Eric ^[15] ; Ficetola, Francesco ^[15] ; Huang, Kangyou ^[17] ; Lezine, Anne-Marie ^[16] ; Nourelbait, Majda ^[11] ; Rhoujjati, Ali ^[18] ; Taberlet, Pierre ^[15] ; Sarmiento, Fausto ^[19] ; Abel-Schaad, Daniel ^[20] ; Alba-Sanchez, Francisca ^[20] ; Zheng, Zhuo ^[17] ; De Oliveira, Paulo E. ^{[3, 2, 4]}

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^[1] Univ Sao Paulo, Politech Sch, Sao Paulo, SP - Brazil

^[2] Univ Sao Paulo, Inst Geosci, Sao Paulo, SP - Brazil

^[3] Univ Sao Paulo, Inst Biosci, Sao Paulo, SP - Brazil

^[4] Field Museum Nat Hist, Sci Act, Chicago, IL 60605 - USA

^[5] Univ Sao Paulo, Inst Astron & Geophys & Atmospher Sci, Sao Paulo, SP - Brazil

^[6] Univ Sao Paulo, Inst Energy & Environm, Sao Paulo, SP - Brazil

^[7] Univ Sao Paulo, Sch Arts Sci & Humanities, Sao Paulo, SP - Brazil

^[8] Fed Fluminense Univ, Niteroi, RJ - Brazil

^[9] Fed Univ Jequitinhonha & Mucuri Valleyst, Inst Agr Sci, Unai, MG - Brazil

^[10] Fed Univ ABC, Ctr Math Computat & Cognit, Santo Andre, SP - Brazil

^[11] Univ Montpellier, ISEM, CNRS, IRD, EPHE, Montpellier - France

^[12] Florida Inst Technol, Dept Biol Sci, Melbourne, FL 32901 - USA

^[13] Univ Liege, UR SPHERES, Unite Modelisat Climat & Cycles Biogeochim, Liege - Belgium

^[14] Univ Liege, UR SPHERES, Unite Biol Comportement, Liege - Belgium

^[15] Univ Grenoble Alpes, Lab Ecol Alpine, CNRS, Grenoble - France

^[16] Sorbonne Univ UPMC, LOCEAN Lab, CNRS, IRD, MNHN, Paris - France

^[17] Sun Yat Sen Univ, Sch Earth Sci & Geol Engn, Guangzhou, Guangdong - Peoples R China

^[18] Univ Cadi Ayyad, Lab Georessources, Unite Rech Associee CNRST URAC 42, Fac Sci & Tech, Marrakech - Morocco

^[19] Univ Georgia, Dept Geog, Neotrop Montol Collab, Athens, GA 30602 - USA

^[20] Univ Granada, Fac Ciencias, Dept Bot, Granada, Andalucia - Spain

• Tipo de documento: Artigo Científico
• Fonte: SCIENTIFIC REPORTS; v. 9, NOV 29 2019.
• Citações Web of Science: 0

Resumo

The origin of modern disjunct plant distributions in the Brazilian Highlands with strong floristic affinities to distant montane rainforests of isolated mountaintops in the northeast and northern Amazonia and the Guyana Shield remains unknown. We tested the hypothesis that these unexplained biogeographical patterns reflect former ecosystem rearrangements sustained by widespread plant migrations possibly due to climatic patterns that are very dissimilar from present-day conditions. To address this issue, we mapped the presence of the montane arboreal taxa Araucaria, Podocarpus, Drimys, Hedyosmum, Ilex, Myrsine, Symplocos, and Weinmannia, and cool-adapted plants in the families Myrtaceae, Ericaceae, and Arecaceae (palms) in 29 palynological records during Heinrich Stadial 1 Event, encompassing a latitudinal range of 30 degrees S to 0 degrees S. In addition, Principal Component Analysis and Species Distribution Modelling were used to represent past and modern habitat suitability for Podocarpus and Araucaria. The data reveals two long-distance patterns of plant migration connecting south/southeast to northeastern Brazil and Amazonia with a third short route extending from one of them. Their paleofloristic compositions suggest a climatic scenario of abundant rainfall and relative lower continental surface temperatures, possibly intensified by the effects of polar air incursions forming cold fronts into the Brazilian Highlands. Although these taxa are sensitive to changes in temperature, the combined pollen and speleothems proxy data indicate that this montane rainforest expansion during Heinrich Stadial 1 Event was triggered mainly by a less seasonal rainfall regime from the subtropics to the equatorial region. (AU)

• Processo FAPESP: 15/50683-2 - Vulnerabilidade de populações sob cenários extremos
• Beneficiário: Paulo Eduardo de Oliveira
• Modalidade de apoio: Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Temático
• Processo FAPESP: 16/04982-0 - Apoio para a pesquisa integrada através do monitoramento de medidas do clima e da biodiversidade
• Beneficiário: Pedro Luiz Pizzigatti Corrêa
• Modalidade de apoio: Auxílio à Pesquisa - Programa eScience e Data Science - Regular
• Processo FAPESP: 13/50297-0 - Dimensions US-BIOTA São Paulo: integrando disciplinas para a predição da biodiversidade da Floresta Atlântica no Brasil
• Beneficiário: Cristina Yumi Miyaki
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático
• Processo FAPESP: 17/50085-3 - PIRE: educação e pesquisa em clima das Américas usando os exemplos de anéis de árvores e espeleotemas (PIRE-CREATE)
• Beneficiário: Francisco William da Cruz Junior
• Modalidade de apoio: Auxílio à Pesquisa - Temático