Imma Oliveras Menor

Apr 17, 2024 | nature.com | Manoela Machado |Erika Berenguer |Paulo M. Brando |Ane A. Alencar |Imma Oliveras Menor |Jos Barlow

AbstractThe fire crises in the Amazon continues to increase the risk of large-scale forest dieback, threatening regional biodiversity and global climate. This issue gained international attention in 2019 when fires in the Brazilian Amazon led to a fire ban imposition. Despite the uncertainty of its impact, the fire ban was reenacted in subsequent years. Here we assess the effectiveness of each fire ban by comparing observed fire counts with climate-driven predictions of fire for 2019–2021.

Aug 23, 2023 | nature.com | Christopher Doughty |Benjamin Wiebe |Kali B. Middleby |Michael L Goulden |Yadvinder Malhi |Sophie Fauset | +2 more

AbstractThe critical temperature beyond which photosynthetic machinery in tropical trees begins to fail averages approximately 46.7 °C (Tcrit)1. However, it remains unclear whether leaf temperatures experienced by tropical vegetation approach this threshold or soon will under climate change.

Apr 26, 2023 | nature.com | Rafael Oliveira |Luciano Rodrigues Pereira |Martin Acosta |Imma Oliveras Menor |Adriane Esquivel-Muelbert |Leticia Fernandes | +16 more

AbstractTropical forests face increasing climate risk1,2, yet our ability to predict their response to climate change is limited by poor understanding of their resistance to water stress. Although xylem embolism resistance thresholds (for example, \varPsi 50) and hydraulic safety margins (for example, HSM50) are important predictors of drought-induced mortality risk3,4,5, little is known about how these vary across Earth’s largest tropical forest.