Global ecosystem thresholds driven by aridity

Miguel Berdugo*, Manuel Delgado-Baquerizo, Santiago Soliveres, Rocío Hernández-Clemente, Yanchuang Zhao, Juan J. Gaitán, Nicolas Gross, Hugo Saiz, Vincent Maire, Anika Lehman, Matthias C. Rillig, Ricard V. Solé, Fernando T. Maestre

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

516 Scopus citations


Aridity, which is increasing worldwide because of climate change, affects the structure and functioning of dryland ecosystems. Whether aridification leads to gradual (versus abrupt) and systemic (versus specific) ecosystem changes is largely unknown. We investigated how 20 structural and functional ecosystem attributes respond to aridity in global drylands. Aridification led to systemic and abrupt changes in multiple ecosystem attributes. These changes occurred sequentially in three phases characterized by abrupt decays in plant productivity, soil fertility, and plant cover and richness at aridity values of 0.54, 0.7, and 0.8, respectively. More than 20% of the terrestrial surface will cross one or several of these thresholds by 2100, which calls for immediate actions to minimize the negative impacts of aridification on essential ecosystem services for the more than 2 billion people living in drylands.

Original languageEnglish (US)
Pages (from-to)787-790
Number of pages4
Issue number6479
StatePublished - Feb 14 2020

ASJC Scopus subject areas

  • General


Dive into the research topics of 'Global ecosystem thresholds driven by aridity'. Together they form a unique fingerprint.

Cite this