EARLY HEARING DETECTION AND INTERVENTION VIRTUAL CONFERENCE
MARCH 2-5, 2021
(Virtually the same conference, without elevators, airplane tickets, or hotel room keys)
5/22/2018 | 11:30 AM - 11:45 AM | ARTIFICIAL NIGHT LIGHTING IMPACTS RESOURCE EXCHANGE ACROSS AN AQUATIC-TERRESTRIAL BOUNDARY | 320
ARTIFICIAL NIGHT LIGHTING IMPACTS RESOURCE EXCHANGE ACROSS AN AQUATIC-TERRESTRIAL BOUNDARY
Artificial night lighting (ANL) has increased concurrently with human habitation along freshwater shorelines, illuminating littoral and riparian areas. Do alterations to the natural light regime alter resource exchange between these highly productive ecosystems? To help answer this question, we installed 20 mesocosms in the littoral zone of Haven Hill Lake (Michigan, USA), manipulated the presence of fish and ANL, and measured a suite of community- and ecosystem-level parameters. We found that ANL increased emergent invertebrate abundance and altered emergent and terrestrial invertebrate community composition, while having few effects on aquatic benthic invertebrate communities and ecosystem processes. ANL also increased the presence of riparian spiders (Tetragnathidae) by 101% and spider biomass by 51%, with both biomass and abundance positively correlated with invertebrate-prey abundance. These results indicate that ANL along shorelines and in littoral zones can impact the transfer of resources across the aquatic-riparian boundary, and the consumers that utilize those resources.
- Invertebrate
- Subsidy
- Predator-prey
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
Elizabeth Parkinson
(), Dept. Biological Sciences, Oakland University, emparkinson@oakland.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Scott Tiegs
(), Dept. of Biological Sciences, Oakland University, tiegs@oakland.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -