Primarily neutral effects of river restoration on macroinvertebrates, macrophytes, and fishes after a decade of monitoring

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F23%3A43906239" target="_blank" >RIV/60076658:12520/23:43906239 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1111/rec.13840" target="_blank" >https://doi.org/10.1111/rec.13840</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/rec.13840" target="_blank" >10.1111/rec.13840</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Primarily neutral effects of river restoration on macroinvertebrates, macrophytes, and fishes after a decade of monitoring

Popis výsledku v původním jazyce

Restoring river habitat heterogeneity is expensive and time consuming, yet often has little effect on aquatic biota. Such poor restoration outcomes could be partly caused by the predominance of short-term studies, which do not account for natural temporal fluctuations nor changes in the effects of restoration through time. Consequently, research that examines the longer-term dynamics of river restoration is crucial for providing a temporal perspective of restoration outcomes and for informing the effectiveness of restoration methods. We used the Nidda River in Germany as a case study of the temporal effects of river hydromorphological restoration on different aquatic taxa. We surveyed macroinvertebrate, macrophyte, and fish communities across three sites prerestoration (2008) and then monitored changes in one control versus two restored sites across 10 years (2010-2019). Overall, we found few effects of restoration on the macroinvertebrate and macrophyte communities, with no effects whatsoever on fishes. Restoration improved some components of the macroinvertebrate and macrophyte communities; however, these positive effects were temporally inconsistent and did not translate to improvements in river ecosystem health (based on an index of ecological quality). Our findings illustrate how allowing for more time for community development will not necessarily alter the fact that local-scale river habitat restoration can elicit little to no change in aquatic communities. Combining local- with broad-scale restoration efforts that address the primary drivers of hydroecological decline, in addition to long-term monitoring, may therefore be required to ensure that river restorations successfully meet their ecological goals.

Název v anglickém jazyce

Primarily neutral effects of river restoration on macroinvertebrates, macrophytes, and fishes after a decade of monitoring

Popis výsledku anglicky

Restoring river habitat heterogeneity is expensive and time consuming, yet often has little effect on aquatic biota. Such poor restoration outcomes could be partly caused by the predominance of short-term studies, which do not account for natural temporal fluctuations nor changes in the effects of restoration through time. Consequently, research that examines the longer-term dynamics of river restoration is crucial for providing a temporal perspective of restoration outcomes and for informing the effectiveness of restoration methods. We used the Nidda River in Germany as a case study of the temporal effects of river hydromorphological restoration on different aquatic taxa. We surveyed macroinvertebrate, macrophyte, and fish communities across three sites prerestoration (2008) and then monitored changes in one control versus two restored sites across 10 years (2010-2019). Overall, we found few effects of restoration on the macroinvertebrate and macrophyte communities, with no effects whatsoever on fishes. Restoration improved some components of the macroinvertebrate and macrophyte communities; however, these positive effects were temporally inconsistent and did not translate to improvements in river ecosystem health (based on an index of ecological quality). Our findings illustrate how allowing for more time for community development will not necessarily alter the fact that local-scale river habitat restoration can elicit little to no change in aquatic communities. Combining local- with broad-scale restoration efforts that address the primary drivers of hydroecological decline, in addition to long-term monitoring, may therefore be required to ensure that river restorations successfully meet their ecological goals.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Restoration Ecology

ISSN

1061-2971

e-ISSN

1526-100X

Svazek periodika

31

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

—

Kód UT WoS článku

000898660100001

EID výsledku v databázi Scopus

2-s2.0-85144138512