Temporal niche dynamics of spreading native invertebrates
underlie doubling of richness in pristine temperate streams

J 2025

Temporal niche dynamics of spreading native invertebrates underlie doubling of richness in pristine temperate streams

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

Základní údaje

Originální název

Temporal niche dynamics of spreading native invertebrates underlie doubling of richness in pristine temperate streams

Autoři

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

Vydání

JOURNAL OF ANIMAL ECOLOGY, HOBOKEN, WILEY, 2025, 0021-8790

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10511 Environmental sciences

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL, URL

Impakt faktor

Impact factor: 3.700 v roce 2024

Organizační jednotka

Přírodovědecká fakulta

DOI

https://doi.org/10.1111/1365-2656.70005

UT WoS

001422097500001

EID Scopus

2-s2.0-105001649967

Klíčová slova anglicky

aquatic invertebrates; increasing temperature; long-term changes; niche filling; niche shift; streams; winners

Štítky

14314020, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 6. 1. 2026 13:45, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

While biodiversity loss is undeniably a global phenomenon, an increase in taxonomic richness has recently been reported from some ecosystems and spatial scales. A striking increase in abundance and/or species richness has been documented from temperate rivers over the last 25 years, with many of the expanding species (i.e. winners) being native species. However, the lack of repeatedly collected local environmental data prevents the exploration of their niche dynamics and also makes it difficult to distinguish between possible causes. We fill this gap by using species occurrence data from 65 pristine Czech rivers sampled in 1997-2000 and 2015. The same methods were used for sampling macroinvertebrates and measuring environmental parameters in both periods. We selected 43 winners, defined as taxonomically validated and originally non-rare native macroinvertebrate species whose occupancy increased by at least six sites between the time periods. We searched for consistent patterns of niche dynamics (i.e. stability, expansion and restriction) among species that might contribute most to the overall increase in species richness. Using several biological traits, we also compared the winners with the other 253 taxa collected to look for differences. Analysis of the occurrence data showed that niche stability was by far the predominant pattern of the niche dynamics. This clearly indicates that the winners fill their original niches, with a limited contribution of niche shift or expansion, depending on the species. As no significant differences in either temperature preferences or the other biological traits were found between the winners and the other taxa, there is no unique set of functional traits that explain the success of the winners. The observed mechanism of filling the original niche space by the spreading native species not only explains the increase in local species richness, but also contributes to support the hypothesis of a climate-driven increase in ecosystem energy flow from a new perspective. The increased metabolism of the system may relax interspecific competition allowing it to carry more individuals and species, even without the need for an increase in nutrients and ecosystem recovery.

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

HORSÁK, Michal; Michal JANÁČ; Marie ZHAI a Jindřiška BOJKOVÁ. Temporal niche dynamics of spreading native invertebrates underlie doubling of richness in pristine temperate streams. JOURNAL OF ANIMAL ECOLOGY. HOBOKEN: WILEY, 2025, roč. 94, č. 4, s. 693-705. ISSN 0021-8790. Dostupné z: https://doi.org/10.1111/1365-2656.70005.

@article{2501062,
   author = {Horsák, Michal and Janáč, Michal and Zhai, Marie and Bojková, Jindřiška},
   article_location = {HOBOKEN},
   article_number = {4},
   doi = {https://doi.org/10.1111/1365-2656.70005},
   keywords = {aquatic invertebrates; increasing temperature; long-term changes; niche filling; niche shift; streams; winners},
   language = {eng},
   issn = {0021-8790},
   journal = {JOURNAL OF ANIMAL ECOLOGY},
   title = {Temporal niche dynamics of spreading native invertebrates underlie doubling of richness in pristine temperate streams},
   url = {https://doi.org/10.5061/dryad.zpc866tk0},
   volume = {94},
   year = {2025}
}

TY  - JOUR
ID  - 2501062
AU  - Horsák, Michal - Janáč, Michal - Zhai, Marie - Bojková, Jindřiška
PY  - 2025
TI  - Temporal niche dynamics of spreading native invertebrates underlie doubling of richness in pristine temperate streams
JF  - JOURNAL OF ANIMAL ECOLOGY
VL  - 94
IS  - 4
SP  - 693-705
EP  - 693-705
PB  - WILEY
SN  - 00218790
KW  - aquatic invertebrates
KW  - increasing temperature
KW  - long-term changes
KW  - niche filling
KW  - niche shift
KW  - streams
KW  - winners
UR  - https://doi.org/10.5061/dryad.zpc866tk0
N2  - While biodiversity loss is undeniably a global phenomenon, an increase in taxonomic richness has recently been reported from some ecosystems and spatial scales. A striking increase in abundance and/or species richness has been documented from temperate rivers over the last 25 years, with many of the expanding species (i.e. winners) being native species. However, the lack of repeatedly collected local environmental data prevents the exploration of their niche dynamics and also makes it difficult to distinguish between possible causes. We fill this gap by using species occurrence data from 65 pristine Czech rivers sampled in 1997-2000 and 2015. The same methods were used for sampling macroinvertebrates and measuring environmental parameters in both periods. We selected 43 winners, defined as taxonomically validated and originally non-rare native macroinvertebrate species whose occupancy increased by at least six sites between the time periods. We searched for consistent patterns of niche dynamics (i.e. stability, expansion and restriction) among species that might contribute most to the overall increase in species richness. Using several biological traits, we also compared the winners with the other 253 taxa collected to look for differences. Analysis of the occurrence data showed that niche stability was by far the predominant pattern of the niche dynamics. This clearly indicates that the winners fill their original niches, with a limited contribution of niche shift or expansion, depending on the species. As no significant differences in either temperature preferences or the other biological traits were found between the winners and the other taxa, there is no unique set of functional traits that explain the success of the winners. The observed mechanism of filling the original niche space by the spreading native species not only explains the increase in local species richness, but also contributes to support the hypothesis of a climate-driven increase in ecosystem energy flow from a new perspective. The increased metabolism of the system may relax interspecific competition allowing it to carry more individuals and species, even without the need for an increase in nutrients and ecosystem recovery.
ER  -

HORSÁK, Michal; Michal JANÁČ; Marie ZHAI a Jindřiška BOJKOVÁ. Temporal niche dynamics of spreading native invertebrates underlie doubling of richness in pristine temperate streams. \textit{JOURNAL OF ANIMAL ECOLOGY}. HOBOKEN: WILEY, 2025, roč.~94, č.~4, s.~693-705. ISSN~0021-8790. Dostupné z: https://doi.org/10.1111/1365-2656.70005.

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