Impacts of detritivore diversity loss on instream decomposition are greatest in the tropics

Boyero, Luz, López-Rojo, Naiara, Tonin, Alan M., Pérez, Javier, Correa-Araneda, Francisco, Pearson, Richard G., Bosch, Jaime, Albariño, Ricardo J., Anbalagan, Sankarappan, Barmuta, Leon A., Basaguren, Ana, Burdon, Francis J., Caliman, Adriano, Callisto, Marcos, Calor, Adolfo R., Campbell, Ian C., Cardinale, Bradley J., Jesús Casas, J., Chará-Serna, Ana M., Chauvet, Eric, Ciapała, Szymon, Colón-Gaud, Checo, Cornejo, Aydeé, Davis, Aaron M., Degebrodt, Monika, Dias, Emerson S., Díaz, Maria, Douglas, Michael M., Encalada, Andrea C., Figueroa, Ricardo, Flecker, Alexander S., Fleituch, Tadeusz, García, Erica A., García, Gabriela, García, Pavel E., Gessner, Mark O., Gómez, Jesús E., Gómez, Sergio, Gonçalves, Jose F., Graça, Manuel A.S., Gwinn, Daniel C., Hall, Robert O., Hamada, Neusa, Hui, Cang, Imazawa, Daichi, Iwata, Tomoya, Kariuki, Samuel K., Landeira-Dabarca, Andrea, Laymon, Kelsey, Leal, María, Marchant, Richard, Martins, Renato T., Masese, Frank O., Maul, Megan, McKie, Brendan G., Medeiros, Adriana O., Erimba, Charles M.M’, Middleton, Jen A., Monroy, Silvia, Muotka, Timo, Negishi, Junjiro N., Ramírez, Alonso, Richardson, John S., Rincón, José, Rubio-Ríos, Juan, dos Santos, Gisele M., Sarremejane, Romain, Sheldon, Fran, Sitati, Augustine, Tenkiano, Nathalie S.D., Tiegs, Scott D., Tolod, Janine R., Venarsky, Michael, Watson, Anne, and Yule, Catherine M. (2021) Impacts of detritivore diversity loss on instream decomposition are greatest in the tropics. Nature Communications, 12 (1). 3700.

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Abstract

The relationship between detritivore diversity and decomposition can provide information on how biogeochemical cycles are affected by ongoing rates of extinction, but such evidence has come mostly from local studies and microcosm experiments. We conducted a globally distributed experiment (38 streams across 23 countries in 6 continents) using standardised methods to test the hypothesis that detritivore diversity enhances litter decomposition in streams, to establish the role of other characteristics of detritivore assemblages (abundance, biomass and body size), and to determine how patterns vary across realms, biomes and climates. We observed a positive relationship between diversity and decomposition, strongest in tropical areas, and a key role of abundance and biomass at higher latitudes. Our results suggest that litter decomposition might be altered by detritivore extinctions, particularly in tropical areas, where detritivore diversity is already relatively low and some environmental stressors particularly prevalent.

Item ID: 69972
Item Type: Article (Research - C1)
ISSN: 2041-1723
Copyright Information: Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/ licenses/by/4.0/
Date Deposited: 08 Mar 2022 03:04
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