2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
6/08/2017 | 2:30 PM - 2:45 PM | ECOLOGICAL TRAITS EXPLAIN REGIONAL DISTRIBUTION PATTERNS IN LOWLAND STREAM INVERTEBRATES | 302B
ECOLOGICAL TRAITS EXPLAIN REGIONAL DISTRIBUTION PATTERNS IN LOWLAND STREAM INVERTEBRATES
Large scale degradation of lowland stream ecosystems has resulted in macroinvertebrate diversity loss, but which stressors were ultimately responsible for this decline is often unclear. Using ecological traits we investigated if there were differences in the trait profiles of species groups with a different occurrence pattern in the Campine region, the Netherlands. Macroinvertebrates have been studied here since the beginning of the twentieth century, with routine sampling for bioassessment purposes spanning almost four decades, as well as many observations of adult insects made by volunteer entomologists. Based on this data we reconstructed the regional species pool and assessed the status of each species, being classified as: 1. regionally extinct, 2. no records during the last 10 years, 3. present, but rare, 4. present and common, and 5. cryptic, not in sampling but larvae or adults observed. Trait profiles of these five groups were compared based on their sensitivity to flow intermittency, drought, salinization, organic load, eutrophication and acidification, as well as their substrate and water type preferences. Especially flow related traits appeared to be important predictors.
- C12 Conservation Ecology
- C03 Invertebrates
- S30 The future of trait-based approaches in research and management
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
Ralf C.M. Verdonschot
(), Wageningen Environmental Research, ralf.verdonschot@wur.nl;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Piet F.M. Verdonschot
(), University of Amsterdam / Wageningen Environmental Research , piet.verdonschot@wur.nl;
ASHA DISCLOSURE:
Financial -
Nonfinancial -