Ash-free dry mass values for northcentral USA caddisflies (Insecta, Trichoptera)

Abstract

Ash-free dry mass (AFDM) values are presented for the adult stage of 63 caddisfly species commonly found throughout the northcentral US. Weights ranged from 0.01 mg for the smallest species to 7.22 mg for the largest. These values represent the first published data on the AFDM of the adult stage of Trichoptera, and can be used in other studies for more precise assessments of stream conditions without destruction of specimens. This increased precision is demonstrated herein by re-analyzing a previously published data set.

Comparison of caddisfly (Insecta, Trichoptera) assemblages from lake and river habitats of the Huron Mountains of Michigan (USA)

“…Ash-free dry mass ( AFDM ) values for each species were taken from Houghton and Lardner’s (2020) determination of 63 common caddisflies of the north-central US. Species without a determined value were assigned the value of a congener of similar size.…”

Catalog of the Hydroptilidae (Insecta, Trichoptera)

“…— Edmonds-Brown 2020 : 91 [checklist]. — Houghton and Lardner 2020 : 42 [distribution]. — O’Connor 2020 : 140 [distribution].…”