Naslov
Water scarcity – the macroinvertebrate perspective

Autori
Miliša, Marko ; Matoničkin Kepčija, Renata

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
3rd Central European Symposium for Aquatic Macroinvertebrates Research (CESAMIR) Book of abstracts / Rewicz, Tomasz ; Wysocka, Anna ; Bacela-Spychalska, Karolina ; Grabowski, Michal ; Hupalo, Kamil - Łódź, 2018, 51-51

Skup
3rd Central European Symposium for Aquatic Macroinvertebrate Research (CESAMIR)

Mjesto i datum
Łódź, Poljska, 08.07.2018. - 13.07.2018

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
vegetation removal, flow manipulation, water scarcity, tufa, mountain stream

Sažetak
Supposedly, there is a process going on called climate change. The issue has been somewhat trumped recently though. Nevertheless, there are data and predictions that precipitation volume and its locations may be altering, and it seems we are witnessing these changes. Simultaneously, temperatures fluctuate and coincidentally or not at similar locations as for aforementioned water dynamics shifts. Water dynamics, consequently may differ from what biota is adapted to in a respective aquatic habitat. That is why many freshwater researchers are focusing their investigations towards this issue. We have done a study in which we mimicked water scarcity at an ecosystem level. At a tufa barrier where normally, aquatic and other vegetation limits the flow, creating lotic channels, we enabled broader flow area by removing the vegetation. With its removal, water level dropped and flow velocity decreased – hence mimicking water scarcity event. We focused research on moss mats at normally open canopy sites and away from removed vegetation to avoid including physical effects of vegetation removal other than the flow change. We sampled the moss mats half a year before the impact and half a year after it. In second study, we observed changes in macroinvertebrate communities in a mountain stream at an artificially broadened site that resulted in similar changes – flow inhibition and water level decrease. In both cases, inhibited flow caused a decrease in macroinvertebrate abundance and diversity. Rheophilic taxa were the most impacted. In addition, we noted an increase in detrital accumulation especially for the fine detritus.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA