Globally invariant metabolism but density-diversity mismatch in springtails

作者：Anton Potapov, Carlos A. Guerra, Johan van den Hoogen, А. Б. Бабенко, Bruno Cavalcante Bellini, Matty P. Berg, Steven L. Chown, Louis Deharveng, Ľubomír Kováč, Natalia A. Kuznetsova, Jean‐François Ponge, Mikhail Potapov, David J. Russell, Douglas Alexandre, Juha M. Alatalo, Javier Ignacio Arbea Polite, Ipsa Bandyopadhyay, Verónica Bernava, Stef Bokhorst, Thomas Bolger, Gabriela Castaño‐Meneses, Matthieu Chauvat, Ting‐Wen Chen, Mathilde Chomel, Aimée T. Classen, Jérôme Cortet, Peter Čuchta, Ana Manuela de la Pedrosa, Susana S. D. Ferreira, Cristina Fiera, Juliane Filser, Oscar Franken, Saori Fujii, Essivi Gagnon Koudji, Meixiang Gao, Benoît Gendreau-Berthiaume, Diego F. Gomez-Pamies, Michelle Greve, I. Tanya Handa, Charlène Heiniger, Martin Holmstrup, Pablo Homet, Mari Ivask, Charlene Janion‐Scheepers, Malte Jochum, Sophie Joimel, Bruna Claudia S. Jorge, Edīte Juceviča, Luís Carlos Iuñes de Oliveira Filho, Osmar Klauberg Filho, Dilmar Baretta, Eveline J. Krab, Annely Kuu, Estevam Cipriano Araújo de Lima, Dunmei Lin, Amy Liu, Jing‐Zhong Lu, María José Luciáñez Sánchez, Michael Thomas Marx, Matthew M. McCary, Maria A. Minor, Taizo Nakamori, Ilaria Negri, Raúl Ochoa‐Hueso, José G. Palacios‐Vargas, Melanie M. Pollierer, Pascal Querner, Natália Raschmanová, Muhammad Imtiaz Rashid, Laura J. Raymond-Léonard, Laurent Rousseau, Ruslan A. Saifutdinov, Sandrine Salmon, Emma J. Sayer, Nicole Scheunemann, Cornelia Scholz, Julia Seeber, Yulia B. Shveenkova, Sophya Stebaeva, Maria Sterzyńska, Xin Sun, Winda Ika Susanti, А. А. Таскаева, Madhav P. Thakur, Maria Α. Tsiafouli, Matthew S. Turnbull, Mthokozisi N. Twala, Alexei V. Uvarov, Lisa Venier, Lina A. Widenfalk, Bruna Raquel Winck, Dániel Winkler, Donghui Wu, Zhijing Xie, Rui Yin, Douglas Zeppelini, Thomas W. Crowther, Nico Eisenhauer, Stefan Scheu · 发表于：bioRxiv (Cold Spring Harbor Laboratory) · 年份：2022 · DOI：10.1101/2022.01.07.475345 · 被引用次数：11 · 研究领域：Soil Carbon and Nitrogen Dynamics、Fire effects on ecosystems、Species Distribution and Climate Change

Soil life supports the functioning and biodiversity of terrestrial ecosystems 1, 2 . Springtails (Collembola) are among the most abundant soil animals regulating soil fertility and flow of energy through above- and belowground food webs 3–5 . However, the global distribution of springtail diversity and density, and how these relate to energy fluxes remains unknown. Here, using a global dataset collected from 2,470 sites, we estimate total soil springtail biomass at 29 Mt carbon (threefold higher than wild terrestrial vertebrates 6 ) and record peak densities up to 2 million individuals per m² in the Arctic. Despite a 20-fold biomass difference between tundra and the tropics, springtail energy use (community metabolism) remains similar across the latitudinal gradient, owing to the increase in temperature. Neither springtail density nor community metabolism were predicted by local species richness, which was highest in the tropics, but comparably high in some temperate forests and even tundra. Changes in springtail activity may emerge from latitudinal gradients in temperature, predation 7, 8 , and resource limitation 7, 9, 10 in soil communities. Contrasting temperature responses of biomass, diversity and activity of springtail communities suggest that climate warming will alter fundamental soil biodiversity metrics in different directions, potentially restructuring terrestrial food webs and affecting major soil functions.