Emergence, Growth, Drift and Microdistribution of Stoneflies (Plecoptera) in an Ozark Foothills Stream, Delaware County

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Adult stonefly emergence, nymphal growth, drift and microdistribution were examined in Battle Branch, a secondorder, spring-fed stream, from November, 1982 to May, 1984. Adults of 22 species emerged successionally, with specific adults present every month. Searching emergent objects and the stream margin was best for collection of winter and early spring emerging species. Sweeping the streamside and light trapping were most efficient for late spring and summer emerging species. Nymphal growth for nine abundant species generally fit double log or semilog models. Drift was low, but did show a post-sunset pulse. Generally, leaf material was found to be significantly related ... continued below

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vi, 122 leaves: ill.

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Ernst, Mark R. (Mark Richard) May 1985.

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  • Ernst, Mark R. (Mark Richard)

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Adult stonefly emergence, nymphal growth, drift and microdistribution were examined in Battle Branch, a secondorder, spring-fed stream, from November, 1982 to May, 1984. Adults of 22 species emerged successionally, with specific adults present every month. Searching emergent objects and the stream margin was best for collection of winter and early spring emerging species. Sweeping the streamside and light trapping were most efficient for late spring and summer emerging species. Nymphal growth for nine abundant species generally fit double log or semilog models. Drift was low, but did show a post-sunset pulse. Generally, leaf material was found to be significantly related (p<O.001) to density, diversity and biomass of stoneflies in Battle Branch.

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vi, 122 leaves: ill.

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  • May 1985

Start & End Dates

  • 1982 - 1984

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  • May 10, 2015, 6:16 a.m.

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  • Dec. 5, 2016, 2:10 p.m.

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Ernst, Mark R. (Mark Richard). Emergence, Growth, Drift and Microdistribution of Stoneflies (Plecoptera) in an Ozark Foothills Stream, Delaware County, thesis, May 1985; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc504198/: accessed November 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .