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

Boyero, Luz and López-Rojo, Naiara and Tonin, Alan M. and Pérez, Javier and Correa-Araneda, Francisco and Pearson, Richard G. and Bosch, Jaime and Albariño, Ricardo J. and Anbalagan, Sankarappan and Barmuta, Leon A. and Basaguren, Ana and Burdon, Francis J. and Caliman, Adriano and Callisto, Marcos and Calor, Adolfo R. and Campbell, Ian C. and Cardinale, Bradley J. and Casas, J. Jesús and Chará-Serna, Ana M. and Chauvet, Eric and Ciapała, Szymon and Colón-Gaud, Checo and Cornejo, Aydeé and Davis, Aaron M. and Degebrodt, Monika and Dias, Emerson S. and Díaz, María E. and Douglas, Michael M. and Encalada, Andrea C. and Figueroa, Ricardo and Flecker, Alexander S. and Fleituch, Tadeusz and García, Erica A. and García, Gabriela and García, Pavel E. and Gessner, Mark O. and Gómez, Jesús E. and Gómez, Sergio and Gonçalves Jr, Jose F. and Graça, Manuel A. S. and Gwinn, Daniel C. and Hall Jr, Robert O. and Hamada, Neusa and Hui, Cang and Imazawa, Daichi and Iwata, Tomoya and Kariuki, Samuel K. and Landeira-Dabarca, Andrea and Laymon, Kelsey and Leal, María and Marchant, Richard and Martins, Renato T. and Masese, Frank O. and Maul, Megan and McKie, Brendan G. and Medeiros, Adriana O. and M’ Erimba, Charles M. and Middleton, Jen A. and Monroy, Silvia and Muotka, Timo and Negishi, Junjiro N. and Ramírez, Alonso and Richardson, John S. and Rincón, José and Rubio-Ríos, Juan and dos Santos, Gisele M. and Sarremejane, Romain and Sheldon, Fran and Sitati, Augustine and Tenkiano, Nathalie S. D. and Tiegs, Scott D. and Tolod, Janine R. and Venarsky, Michael and Watson, Anne and Yule, Catherine M. Impacts of detritivore diversity loss on instream decomposition are greatest in the tropics. (2021) Nature Communications, 12. 3700 (2021). ISSN 2041-1723

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Official URL: https://doi.org/10.1038/s41467-021-23930-2


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, stron- gest 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, parti- cularly in tropical areas, where detritivore diversity is already relatively low and some environmental stressors particularly prevalent.

Item Type:Article
Additional Information:Licence : CC BY
HAL Id:hal-03272960
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
Basque Government funds (Ref. IT951-16)
Deposited On:28 Jun 2021 15:25

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