Drying Halves Decomposition Rates in River Networks by
Decreasing Decomposer Diversity

J 2026

Drying Halves Decomposition Rates in River Networks by Decreasing Decomposer Diversity

DEL CAMPO, Ruben; Thibault DATRY; Arnaud FOULQUIER; Naiara LOPEZ-ROJO; Loic CHALMANDRIER et al.

Základní údaje

Originální název

Drying Halves Decomposition Rates in River Networks by Decreasing Decomposer Diversity

Autoři

Vydání

GLOBAL CHANGE BIOLOGY, HOBOKEN, WILEY, 2026, 1354-1013

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10619 Biodiversity conservation

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL, URL

Impakt faktor

Impact factor: 12.000 v roce 2024

Označené pro přenos do RIV

Ano

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

bacteria; biodiversity; climate change; decomposition; drying; ecosystem functioning; fungi; intermittent rivers; macroinvertebrates

Štítky

14314020, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 26. 8. 2026 10:16, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

River drying is intensifying worldwide due to climate change and increasing water abstraction, with major consequences for riverine biodiversity and ecosystem functioning. In river networks, drying not only alters local environmental conditions but also disrupts hydrological connectivity, reshaping the movement of organisms and resources at the river network scale. Leaf litter decomposition-a key ecosystem function in freshwater systems-is particularly sensitive to changes in the structure of decomposer communities. We hypothesized that spatiotemporal patterns of drying regulate decomposition by altering the diversity and composition of detritivorous macroinvertebrates, bacteria and fungi. We combined data from six European river networks spanning a wide latitudinal gradient to assess how local drying intensity and regional hydrological connectivity affect decomposition through changes in these decomposer groups. We found that short drying events (<= 6 dry days) reduced decomposition rates by up to 50% mainly mediated by changes in the composition and diversity of decomposer communities. Drying decreased the diversity of groups contributing to decomposition, shifting the control of this function from a balanced contribution of fungi, bacteria and detritivores in perennial rivers to dominance by dry-tolerant but less efficient bacteria in drying rivers. These community shifts persisted for months after flow resumption, causing sustained reductions in decomposition also in flowing conditions. Regional hydrological connectivity alleviated these negative effects of local drying by facilitating the recovery of more efficient aquatic decomposers. However, this effect depended on the river network. In more arid networks, stronger fragmentation hindered the recovery of decomposer communities after flow resumption. Overall, our results evidence that spatiotemporal patterns of drying can regulate the linkages between community structure and ecosystem functioning in river networks. As drying events become more frequent and prolonged, shifts in decomposers' diversity are likely to alter carbon cycling and energy fluxes in freshwater ecosystems under global change.

Návaznosti

869226, interní kód MU

Název: Securing biodiversity, functional integrity and ecosystem services in DRYing rivER networks (Akronym: DRYvER)

Investor: Evropská unie, Securing biodiversity, functional integrity and ecosystem services in DRYing rivER networks, Climate action, environment, resource efficiency and raw materials (Societal Challenges)

Přiložené soubory

Global_Change_Biology_-_2026_-_Campo_-_Drying_Halves_Decomposition_Rates_in_River_Networks_by_Decreasing_Decomposer.pdf

Citovat

DEL CAMPO, Ruben; Thibault DATRY; Arnaud FOULQUIER; Naiara LOPEZ-ROJO; Loic CHALMANDRIER; Zoltan CSABAI; David CUNILLERA-MONTCUSI; Amaia A. RODELES; Francisco J. PENAS; Balint PERNECKER; Nuria BONADA; Jose BARQUIN; Annika KUNNE; Romain SARREMEJANE; Maria SORIA; Edurne ESTEVEZ; Petr PAŘIL; Heikki MYKRA; Marek POLÁŠEK; Barbora LOSKOTOVÁ; Luka POLOVIĆ a Gabriel SINGER. Drying Halves Decomposition Rates in River Networks by Decreasing Decomposer Diversity. GLOBAL CHANGE BIOLOGY. HOBOKEN: WILEY, 2026, roč. 32, č. 7, s. 1-19. ISSN 1354-1013. Dostupné z: https://doi.org/10.1111/gcb.71010.

@article{2585442,
   author = {del Campo, Ruben and Datry, Thibault and Foulquier, Arnaud and LopezandRojo, Naiara and Chalmandrier, Loic and Csabai, Zoltan and CunilleraandMontcusi, David and Rodeles, Amaia A. and Penas, Francisco J. and Pernecker, Balint and Bonada, Nuria and Barquin, Jose and Kunne, Annika and Sarremejane, Romain and Soria, Maria and Estevez, Edurne and Pařil, Petr and Mykra, Heikki and Polášek, Marek and Loskotová, Barbora and Polović, Luka and Singer, Gabriel},
   article_location = {HOBOKEN},
   article_number = {7},
   doi = {https://doi.org/10.1111/gcb.71010},
   keywords = {bacteria; biodiversity; climate change; decomposition; drying; ecosystem functioning; fungi; intermittent rivers; macroinvertebrates},
   language = {eng},
   issn = {1354-1013},
   journal = {GLOBAL CHANGE BIOLOGY},
   title = {Drying Halves Decomposition Rates in River Networks by Decreasing Decomposer Diversity},
   url = {https://doi.org/10.1111/gcb.71010},
   volume = {32},
   year = {2026}
}

TY  - JOUR
ID  - 2585442
AU  - del Campo, Ruben - Datry, Thibault - Foulquier, Arnaud - Lopez-Rojo, Naiara - Chalmandrier, Loic - Csabai, Zoltan - Cunillera-Montcusi, David - Rodeles, Amaia A. - Penas, Francisco J. - Pernecker, Balint - Bonada, Nuria - Barquin, Jose - Kunne, Annika - Sarremejane, Romain - Soria, Maria - Estevez, Edurne - Pařil, Petr - Mykra, Heikki - Polášek, Marek - Loskotová, Barbora - Polović, Luka - Singer, Gabriel
PY  - 2026
TI  - Drying Halves Decomposition Rates in River Networks by Decreasing Decomposer Diversity
JF  - GLOBAL CHANGE BIOLOGY
VL  - 32
IS  - 7
SP  - 1-19
EP  - 1-19
PB  - WILEY
SN  - 13541013
KW  - bacteria
KW  - biodiversity
KW  - climate change
KW  - decomposition
KW  - drying
KW  - ecosystem functioning
KW  - fungi
KW  - intermittent rivers
KW  - macroinvertebrates
UR  - https://doi.org/10.1111/gcb.71010
N2  - River drying is intensifying worldwide due to climate change and increasing water abstraction, with major consequences for riverine biodiversity and ecosystem functioning. In river networks, drying not only alters local environmental conditions but also disrupts hydrological connectivity, reshaping the movement of organisms and resources at the river network scale. Leaf litter decomposition-a key ecosystem function in freshwater systems-is particularly sensitive to changes in the structure of decomposer communities. We hypothesized that spatiotemporal patterns of drying regulate decomposition by altering the diversity and composition of detritivorous macroinvertebrates, bacteria and fungi. We combined data from six European river networks spanning a wide latitudinal gradient to assess how local drying intensity and regional hydrological connectivity affect decomposition through changes in these decomposer groups. We found that short drying events (<= 6 dry days) reduced decomposition rates by up to 50% mainly mediated by changes in the composition and diversity of decomposer communities. Drying decreased the diversity of groups contributing to decomposition, shifting the control of this function from a balanced contribution of fungi, bacteria and detritivores in perennial rivers to dominance by dry-tolerant but less efficient bacteria in drying rivers. These community shifts persisted for months after flow resumption, causing sustained reductions in decomposition also in flowing conditions. Regional hydrological connectivity alleviated these negative effects of local drying by facilitating the recovery of more efficient aquatic decomposers. However, this effect depended on the river network. In more arid networks, stronger fragmentation hindered the recovery of decomposer communities after flow resumption. Overall, our results evidence that spatiotemporal patterns of drying can regulate the linkages between community structure and ecosystem functioning in river networks. As drying events become more frequent and prolonged, shifts in decomposers' diversity are likely to alter carbon cycling and energy fluxes in freshwater ecosystems under global change.
ER  -

DEL CAMPO, Ruben; Thibault DATRY; Arnaud FOULQUIER; Naiara LOPEZ-ROJO; Loic CHALMANDRIER; Zoltan CSABAI; David CUNILLERA-MONTCUSI; Amaia A. RODELES; Francisco J. PENAS; Balint PERNECKER; Nuria BONADA; Jose BARQUIN; Annika KUNNE; Romain SARREMEJANE; Maria SORIA; Edurne ESTEVEZ; Petr PAŘIL; Heikki MYKRA; Marek POLÁŠEK; Barbora LOSKOTOVÁ; Luka POLOVI$\backslash$'C a Gabriel SINGER. Drying Halves Decomposition Rates in River Networks by Decreasing Decomposer Diversity. \textit{GLOBAL CHANGE BIOLOGY}. HOBOKEN: WILEY, 2026, roč.~32, č.~7, s.~1-19. ISSN~1354-1013. Dostupné z: https://doi.org/10.1111/gcb.71010.

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