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1. Latitude dictates plant diversity effects on instream decomposition

Author

Boyero, L. (Luz), Perez, J. (Javier), Lopez-Rojo, N. (Naiara), Tonin, A. M. (Alan M.), Correa-Araneda, F. (Francisco), Pearson, R. G. (Richard G.), Bosch, J. (Jaime), Albarino, R. J. (Ricardo J.), Anbalagan, S. (Sankarappan), Barmuta, L. A. (Leon A.), Beesley, L. (Leah), Burdon, F. J. (Francis J.), Caliman, A. (Adriano), Callisto, M. (Marcos), Campbell, I. C. (Ian C.), Cardinale, B. J. (Bradley J.), Jesus Casas, J. (J.), Chara-Serna, A. M. (Ana M.), Ciapala, S. (Szymon), Chauvet, E. (Eric), Colon-Gaud, C. (Checo), Cornejo, A. (Aydee), Davis, A. M. (Aaron M.), Degebrodt, M. (Monika), Dias, E. S. (Emerson S.), Diaz, M. E. (Maria E.), Douglas, M. M. (Michael M.), Elosegi, A. (Arturo), Encalada, A. C. (Andrea C.), de Eyto, E. (Elvira), Figueroa, R. (Ricardo), Flecker, A. S. (Alexander S.), Fleituch, T. (Tadeusz), Frainer, A. (Andre), Franca, J. S. (Juliana S.), Garcia, E. A. (Erica A.), Garcia, G. (Gabriela), Garcia, P. (Pavel), Gessner, M. O. (Mark O.), Giller, P. S. (Paul S.), Gomez, J. E. (Jesus E.), Gomez, S. (Sergio), Goncalves, J. F. (Jose F., Jr.), Graca, M. A. (Manuel A. S.), Hall, R. O. (Robert O., Jr.), Hamada, N. (Neusa), Hepp, L. U. (Luiz U.), Hui, C. (Cang), Imazawa, D. (Daichi), Iwata, T. (Tomoya), Edson, S. A. (S. A. Junior), Kariuki, S. (Samuel), Landeira-Dabarca, A. (Andrea), Leal, M. (Maria), Lehosmaa, K. (Kaisa), M'Erimba, C. (Charles), Marchant, R. (Richard), Martins, R. T. (Renato T.), Masese, F. O. (Frank O.), Camden, M. (Megan), McKie, B. G. (Brendan G.), Medeiros, A. O. (Adriana O.), Middleton, J. A. (Jen A.), Muotka, T. (Timo), Negishi, J. N. (Junjiro N.), Pozo, J. (Jesus), Ramirez, A. (Alonso), Rezende, R. S. (Renan S.), Richardson, J. S. (John S.), Rincon, J. (Jose), Rubio-Rios, J. (Juan), Serrano, C. (Claudia), Shaffer, A. R. (Angela R.), Sheldon, F. (Fran), Swan, C. M. (Christopher M.), Tenkiano, N. S. (Nathalie S. D.), Tiegs, S. D. (Scott D.), Tolod, J. R. (Janine R.), Vernasky, M. (Michael), Watson, A. (Anne), Yegon, M. J. (Mourine J.), Yule, C. M. (Catherine M.), Boyero, L. (Luz), Perez, J. (Javier), Lopez-Rojo, N. (Naiara), Tonin, A. M. (Alan M.), Correa-Araneda, F. (Francisco), Pearson, R. G. (Richard G.), Bosch, J. (Jaime), Albarino, R. J. (Ricardo J.), Anbalagan, S. (Sankarappan), Barmuta, L. A. (Leon A.), Beesley, L. (Leah), Burdon, F. J. (Francis J.), Caliman, A. (Adriano), Callisto, M. (Marcos), Campbell, I. C. (Ian C.), Cardinale, B. J. (Bradley J.), Jesus Casas, J. (J.), Chara-Serna, A. M. (Ana M.), Ciapala, S. (Szymon), Chauvet, E. (Eric), Colon-Gaud, C. (Checo), Cornejo, A. (Aydee), Davis, A. M. (Aaron M.), Degebrodt, M. (Monika), Dias, E. S. (Emerson S.), Diaz, M. E. (Maria E.), Douglas, M. M. (Michael M.), Elosegi, A. (Arturo), Encalada, A. C. (Andrea C.), de Eyto, E. (Elvira), Figueroa, R. (Ricardo), Flecker, A. S. (Alexander S.), Fleituch, T. (Tadeusz), Frainer, A. (Andre), Franca, J. S. (Juliana S.), Garcia, E. A. (Erica A.), Garcia, G. (Gabriela), Garcia, P. (Pavel), Gessner, M. O. (Mark O.), Giller, P. S. (Paul S.), Gomez, J. E. (Jesus E.), Gomez, S. (Sergio), Goncalves, J. F. (Jose F., Jr.), Graca, M. A. (Manuel A. S.), Hall, R. O. (Robert O., Jr.), Hamada, N. (Neusa), Hepp, L. U. (Luiz U.), Hui, C. (Cang), Imazawa, D. (Daichi), Iwata, T. (Tomoya), Edson, S. A. (S. A. Junior), Kariuki, S. (Samuel), Landeira-Dabarca, A. (Andrea), Leal, M. (Maria), Lehosmaa, K. (Kaisa), M'Erimba, C. (Charles), Marchant, R. (Richard), Martins, R. T. (Renato T.), Masese, F. O. (Frank O.), Camden, M. (Megan), McKie, B. G. (Brendan G.), Medeiros, A. O. (Adriana O.), Middleton, J. A. (Jen A.), Muotka, T. (Timo), Negishi, J. N. (Junjiro N.), Pozo, J. (Jesus), Ramirez, A. (Alonso), Rezende, R. S. (Renan S.), Richardson, J. S. (John S.), Rincon, J. (Jose), Rubio-Rios, J. (Juan), Serrano, C. (Claudia), Shaffer, A. R. (Angela R.), Sheldon, F. (Fran), Swan, C. M. (Christopher M.), Tenkiano, N. S. (Nathalie S. D.), Tiegs, S. D. (Scott D.), Tolod, J. R. (Janine R.), Vernasky, M. (Michael), Watson, A. (Anne), Yegon, M. J. (Mourine J.), and Yule, C. M. (Catherine M.)

Abstract

Running waters contribute substantially to global carbon fluxes through decomposition of terrestrial plant litter by aquatic microorganisms and detritivores. Diversity of this litter may influence instream decomposition globally in ways that are not yet understood. We investigated latitudinal differences in decomposition of litter mixtures of low and high functional diversity in 40 streams on 6 continents and spanning 113° of latitude. Despite important variability in our dataset, we found latitudinal differences in the effect of litter functional diversity on decomposition, which we explained as evolutionary adaptations of litter-consuming detritivores to resource availability. Specifically, a balanced diet effect appears to operate at lower latitudes versus a resource concentration effect at higher latitudes. The latitudinal pattern indicates that loss of plant functional diversity will have different consequences on carbon fluxes across the globe, with greater repercussions likely at low latitudes.

Published
2021

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

Author

Boyero L, López-Rojo N, Tonin AM, Pérez J, Correa-Araneda F, Pearson RG, Bosch J, Albariño RJ, Anbalagan S, Barmuta LA, Basaguren A, Burdon FJ, Caliman A, Callisto M, Calor AR, Campbell IC, Cardinale BJ, Jesús Casas J, Chará-Serna AM, Chauvet E, Ciapała S, Colón-Gaud C, Cornejo A, Davis AM, Degebrodt M, Dias ES, Díaz ME, Douglas MM, Encalada AC, Figueroa R, Flecker AS, Fleituch T, García EA, García G, García PE, Gessner MO, Gómez JE, Gómez S, Gonçalves JF Jr, Graça MAS, Gwinn DC, Hall RO Jr, Hamada N, Hui C, Imazawa D, Iwata T, Kariuki SK, Landeira-Dabarca A, Laymon K, Leal M, Marchant R, Martins RT, Masese FO, Maul M, McKie BG, Medeiros AO, Erimba CMM, Middleton JA, Monroy S, Muotka T, Negishi JN, Ramírez A, Richardson JS, Rincón J, Rubio-Ríos J, Dos Santos GM, Sarremejane R, Sheldon F, Sitati A, Tenkiano NSD, Tiegs SD, Tolod JR, Venarsky M, Watson A, and Yule CM

Subjects
Animals, Biodiversity, Biomass, Body Size, Chironomidae physiology, Climate, Ephemeroptera physiology, Insecta physiology, Plant Leaves chemistry, Rainforest, Tropical Climate, Tundra, Biota, Ecosystem, Rivers chemistry, Rivers microbiology, Rivers parasitology, Rivers virology
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.

Published
2021
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3. Latitude dictates plant diversity effects on instream decomposition.

Author

Boyero L, Pérez J, López-Rojo N, Tonin AM, Correa-Araneda F, Pearson RG, Bosch J, Albariño RJ, Anbalagan S, Barmuta LA, Beesley L, Burdon FJ, Caliman A, Callisto M, Campbell IC, Cardinale BJ, Casas JJ, Chará-Serna AM, Ciapała S, Chauvet E, Colón-Gaud C, Cornejo A, Davis AM, Degebrodt M, Dias ES, Díaz ME, Douglas MM, Elosegi A, Encalada AC, de Eyto E, Figueroa R, Flecker AS, Fleituch T, Frainer A, França JS, García EA, García G, García P, Gessner MO, Giller PS, Gómez JE, Gómez S, Gonçalves JF Jr, Graça MAS, Hall RO Jr, Hamada N, Hepp LU, Hui C, Imazawa D, Iwata T, Junior ESA, Kariuki S, Landeira-Dabarca A, Leal M, Lehosmaa K, M'Erimba C, Marchant R, Martins RT, Masese FO, Camden M, McKie BG, Medeiros AO, Middleton JA, Muotka T, Negishi JN, Pozo J, Ramírez A, Rezende RS, Richardson JS, Rincón J, Rubio-Ríos J, Serrano C, Shaffer AR, Sheldon F, Swan CM, Tenkiano NSD, Tiegs SD, Tolod JR, Vernasky M, Watson A, Yegon MJ, and Yule CM

Abstract

Running waters contribute substantially to global carbon fluxes through decomposition of terrestrial plant litter by aquatic microorganisms and detritivores. Diversity of this litter may influence instream decomposition globally in ways that are not yet understood. We investigated latitudinal differences in decomposition of litter mixtures of low and high functional diversity in 40 streams on 6 continents and spanning 113° of latitude. Despite important variability in our dataset, we found latitudinal differences in the effect of litter functional diversity on decomposition, which we explained as evolutionary adaptations of litter-consuming detritivores to resource availability. Specifically, a balanced diet effect appears to operate at lower latitudes versus a resource concentration effect at higher latitudes. The latitudinal pattern indicates that loss of plant functional diversity will have different consequences on carbon fluxes across the globe, with greater repercussions likely at low latitudes., (Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).)

Published
2021
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