EARLY HEARING DETECTION AND INTERVENTION VIRTUAL CONFERENCE
MARCH 2-5, 2021

(Virtually the same conference, without elevators, airplane tickets, or hotel room keys)

<< BACK TO AGENDA

5/26/2021 | 8:30 AM - 10:30 AM | FLOW INTERMITTENCE EFFECT ON AQUATIC AND TERRESTRIAL INVERTEBRATE COMMUNITIES IN NATURALLY SALINE SEMI-ARID STREAMS | Virtual Platform

FLOW INTERMITTENCE EFFECT ON AQUATIC AND TERRESTRIAL INVERTEBRATE COMMUNITIES IN NATURALLY SALINE SEMI-ARID STREAMS

Saline streams in semi-arid regions are frequently affected by flow intermittence. Both salinity and intermittency are natural stressors that shape biological communities. However, we know little about their effects on aquatic invertebrates and even less on terrestrial invertebrate communities. Here, we examined changes in the structure and composition of both invertebrate communities along drying in two intermittent saline streams (SE Spain), distinguishing the wet, contraction and dry phases. We sampled instream aquatic invertebrates during the aquatic phases and terrestrial invertebrates in channels and its shoreline during the three phases. For both communities and in both streams, the greatest abundance and richness occurred during the contraction phase. The aquatic and terrestrial composition significatively differed among phases in both studied streams. Coleoptera, Ephemeroptera, Heteroptera and Odonata were the most important taxa in explaining differences, with their highest abundances in the contraction phase. Formicidae, Araneae and Hemiptera were responsible for terrestrial differences, with higher abundances in the contraction and dry than in the wet phase. These findings report the significant effect of intermittence on invertebrate communities in saline streams, with the contraction phase particularly contributing to the diversity of the communities.

Aquatic–terrestrial biodiversity
Dry rivers
Salinity

Presentation:
This presentation has not yet been uploaded.

Handouts:
Handout is not Available

Transcripts:
CART transcripts are NOT YET available, but will be posted shortly after the conference

Presenters/Authors

Zeus Freixinos (), Department of Ecology and Hydrology, University of Murcia, Campus de Espinardo, 30100,Spain, zfreixinos@gmail.com;