Subterranean behavior and other notes for ironoquia plattensis (Trichoptera: Limnephilidae) in Nebraska

Keith Geluso, Mary J. Harner, Lindsay A. Vivian

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Ironoquia plattensis Alexander & Whiles (Trichoptera: Limnephilidae) was discovered along the Platte River in central Nebraska in the late 1990s, and basic information about its life history is not well understood. Here, we describe previously undocumented life-history traits that demonstrate strategies used by I. plattensis for surviving in fluctuating wetland environments in a landscape formally shaped by flooding. In an off-channel aquatic habitat along the Platte River, we observed 1) larvae residing in a slough that did not dry completely, 2) larvae emigrating from aquatic to terrestrial habitats 1 mo earlier than reported previously, 3) larvae moving above ground during the summer aestivation period, 4) larvae residing underground in soil during summer aestivation, and 5) mass emergence and swarming of adults after daybreak in autumn. Underground larval aestivation represents a previously undocumented behavior for this species. It is unclear whether aestivating underground represents an unreported common behavior or an infrequent response to local disturbances. At our site, insects may have been responding to a prescribed burn in April and introduction of cattle in mid-May that yielded the site unsuitable for aboveground aestivation. Additional studies on the life history for I. plattensis are warranted to help manage, locate, and protect the few sites where it occurs.

Original languageEnglish (US)
Pages (from-to)1021-1025
Number of pages5
JournalAnnals of the Entomological Society of America
Volume104
Issue number5
DOIs
StatePublished - Sep 1 2011

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Limnephilidae
estivation
Trichoptera
larvae
life history
rivers
swarming
summer
aquatic habitat
eclosion
wetlands
autumn
insects
cattle
habitats
soil

Keywords

  • Platte River
  • caddisfly
  • larval movement
  • life-history strategy
  • subterranean behavior

ASJC Scopus subject areas

  • Insect Science

Cite this

Subterranean behavior and other notes for ironoquia plattensis (Trichoptera : Limnephilidae) in Nebraska. / Geluso, Keith; Harner, Mary J.; Vivian, Lindsay A.

In: Annals of the Entomological Society of America, Vol. 104, No. 5, 01.09.2011, p. 1021-1025.

Research output: Contribution to journalArticle

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