Climate change increases functional richness and shifts trait
composition of benthic macroinvertebrate assemblages along the
river continuum

J 2026

Climate change increases functional richness and shifts trait composition of benthic macroinvertebrate assemblages along the river continuum

ZHAI, Marie; Michal JANÁČ; Michal HORSÁK a Jindřiška BOJKOVÁ

Základní údaje

Originální název

Climate change increases functional richness and shifts trait composition of benthic macroinvertebrate assemblages along the river continuum

Autoři

ZHAI, Marie; Michal JANÁČ; Michal HORSÁK a Jindřiška BOJKOVÁ

Vydání

Limnologica, MUNICH, Elsevier, 2026, 0075-9511

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10617 Marine biology, freshwater biology, limnology

Stát vydavatele

Německo

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 2.000 v roce 2024

Označené pro přenos do RIV

Ano

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

Biological traits; Climate change; Functional richness; Macroinvertebrates; River continuum

Štítky

14314020, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 5. 3. 2026 11:05, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

The recently observed massive reorganisations of macroinvertebrate assemblages in streams are usually attributed to the combined effects of changes in water quality and climate. The consequences of the associated functional changes for ecosystem services and future development are still unknown. In this study, we try to disentangle the effects of climate change on the functional structure from other anthropogenic effects. To do so, we examine functional richness and composition of biological traits in macroinvertebrate assemblages, coming from 65 near-natural streams in the Czech Republic, where anthropogenic stressors apart from those due to climate change were minimal. We sampled the macroinvertebrates using a standardized biomonitoring sampling protocol during three periods from 1997 to 2015. To understand the patterns along the river continuum, we covered a substantial gradient of source distance (3-260 km). The assemblages previously showed a high increase in total species richness and abundances of many native species. As functional richness directly depends on species richness by virtue of probability, we introduced a novel concept of rarefied functional richness, where assemblages of the species richer period were rarefied to equal the number of species in the less species rich period at each site. We found a significant functional enrichment, predominantly independent of the higher number of species and tending towards a unimodal pattern along the source distance. The functional composition overall shifted to that of downstream sections in all source distance intervals, based mainly on life cycle, body size, locomotion, representation of several feeding groups, and dispersal abilities. The shift was mostly indicative of the substantial effects of lower flow conditions associated with fine sediment deposition, increased temperature and an increase in resources, mainly for collectors/gatherers and predators.

Návaznosti

GA23-05268S, projekt VaV

Název: Souvislost mezi oteplováním klimatu a rostoucí druhovou bohatostí bezobratlých v tekoucích vodách: od historických dat po experimenty

Investor: Grantová agentura ČR, Souvislost mezi oteplováním klimatu a rostoucí druhovou bohatostí bezobratlých v tekoucích vodách: od historických dat po experimenty

Citovat

ZHAI, Marie; Michal JANÁČ; Michal HORSÁK a Jindřiška BOJKOVÁ. Climate change increases functional richness and shifts trait composition of benthic macroinvertebrate assemblages along the river continuum. Limnologica. MUNICH: Elsevier, 2026, roč. 116, January, s. 1-8. ISSN 0075-9511. Dostupné z: https://doi.org/10.1016/j.limno.2025.126307.

@article{2549581,
   author = {Zhai, Marie and Janáč, Michal and Horsák, Michal and Bojková, Jindřiška},
   article_location = {MUNICH},
   article_number = {January},
   doi = {https://doi.org/10.1016/j.limno.2025.126307},
   keywords = {Biological traits; Climate change; Functional richness; Macroinvertebrates; River continuum},
   language = {eng},
   issn = {0075-9511},
   journal = {Limnologica},
   title = {Climate change increases functional richness and shifts trait composition of benthic macroinvertebrate assemblages along the river continuum},
   url = {https://doi.org/10.1016/j.limno.2025.126307},
   volume = {116},
   year = {2026}
}

TY  - JOUR
ID  - 2549581
AU  - Zhai, Marie - Janáč, Michal - Horsák, Michal - Bojková, Jindřiška
PY  - 2026
TI  - Climate change increases functional richness and shifts trait composition of benthic macroinvertebrate assemblages along the river continuum
JF  - Limnologica
VL  - 116
IS  - January
SP  - 1-8
EP  - 1-8
PB  - Elsevier
SN  - 00759511
KW  - Biological traits
KW  - Climate change
KW  - Functional richness
KW  - Macroinvertebrates
KW  - River continuum
UR  - https://doi.org/10.1016/j.limno.2025.126307
N2  - The recently observed massive reorganisations of macroinvertebrate assemblages in streams are usually attributed to the combined effects of changes in water quality and climate. The consequences of the associated functional changes for ecosystem services and future development are still unknown. In this study, we try to disentangle the effects of climate change on the functional structure from other anthropogenic effects. To do so, we examine functional richness and composition of biological traits in macroinvertebrate assemblages, coming from 65 near-natural streams in the Czech Republic, where anthropogenic stressors apart from those due to climate change were minimal. We sampled the macroinvertebrates using a standardized biomonitoring sampling protocol during three periods from 1997 to 2015. To understand the patterns along the river continuum, we covered a substantial gradient of source distance (3-260 km). The assemblages previously showed a high increase in total species richness and abundances of many native species. As functional richness directly depends on species richness by virtue of probability, we introduced a novel concept of rarefied functional richness, where assemblages of the species richer period were rarefied to equal the number of species in the less species rich period at each site. We found a significant functional enrichment, predominantly independent of the higher number of species and tending towards a unimodal pattern along the source distance. The functional composition overall shifted to that of downstream sections in all source distance intervals, based mainly on life cycle, body size, locomotion, representation of several feeding groups, and dispersal abilities. The shift was mostly indicative of the substantial effects of lower flow conditions associated with fine sediment deposition, increased temperature and an increase in resources, mainly for collectors/gatherers and predators.
ER  -

ZHAI, Marie; Michal JANÁČ; Michal HORSÁK a Jindřiška BOJKOVÁ. Climate change increases functional richness and shifts trait composition of benthic macroinvertebrate assemblages along the river continuum. \textit{Limnologica}. MUNICH: Elsevier, 2026, roč.~116, January, s.~1-8. ISSN~0075-9511. Dostupné z: https://doi.org/10.1016/j.limno.2025.126307.

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