2023 Early Hearing Detection & Intervention Conference

March 5-7, 2023 • Cincinnati, OH

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5/26/2021 | 8:30 AM - 10:30 AM | A COMPARISON OF ALLOCAPNIA SPECIES DETECTABILITY BETWEEN TWO COLLECTION METHODS | Virtual Platform

A COMPARISON OF ALLOCAPNIA SPECIES DETECTABILITY BETWEEN TWO COLLECTION METHODS

Plecoptera have an aquatic nymph and a terrestrial adult life stage, and as a result of climate change and habitat alteration, they are threatened globally. Capniidae, the most represented family of winter stonefly, contains multiple species of Allocapnia that are classified as being species of greatest conservation need by the Arkansas Wildlife Action Plan. We sought to compare the detection probability of Allocapnia species at nine sites in northwestern Arkansas using two methods: timed adult collection and timed nymph collection followed by rearing the nymphs to adults in the lab. Since Allocapnia adults are commonly found on emergent structures and leaves in streams, the timed adult collection focused on searching in these areas and collecting all adults. To collect nymphs, leaf packs and rocky areas were rinsed into a bucket, sieved, then picked out and brought to the lab to be raised to adults. A. rickeri, A. mohri, and A. jeanae were collected. Detection probability was estimated for each Allocapnia species found for both of the collection methods. We will be able to use results gathered to better inform future sampling and reduce bias in distribution or abundance estimates.

Conservation
Monitoring
Habitat

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Presenters/Authors

Camryn Larson (), University of Arkansas, calarson@uark.edu;