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The Great Lakes Entomologist

Emergence

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Acroneuria Lycorias (Boreal Stonefly, Plecoptera: Perlidae) Emergence Behaviors Discovered In Pinus Strobus Canopy, Hannah Hoff, Jonathan G. Martin, Patrick J. Liesch, Erik R. Olson Sep 2019

Acroneuria Lycorias (Boreal Stonefly, Plecoptera: Perlidae) Emergence Behaviors Discovered In Pinus Strobus Canopy, Hannah Hoff, Jonathan G. Martin, Patrick J. Liesch, Erik R. Olson

The Great Lakes Entomologist

Species of Plecoptera, or stoneflies, are known to use vertical emergence supports, and researchers believe many species of Plecoptera exploit arboreal habitats during emergence. However, the exact nature of these arboreal behaviors has largely remained a mystery. While exploring the habitat potential of Pinus strobus (L.) (Eastern White Pine) canopies in northern Wisconsin we observed Acroneuria lycorias (Newman) (Boreal Stonefly, Plecoptera: Perlidae) exuviae at heights as high as 12m (observations at 6.6, 9, 9.5, and 12m). Most A. lycorias exuviae appeared to have a strong preference for emergence sites at the underside or base of branches similar to some Odonate …


Dragonfly (Odonata: Corduliidae, Macromiidae, Gomphidae, Aeshnidae) And Damselfly (Odonata: Calopterygidae) Exuviae Observed At Record Heights In Pinus Strobus And Picea Abies Canopies, Madison M. Laughlin, Jonathan G. Martin, Patrick J. Liesch, Erik R. Olson Aug 2018

Dragonfly (Odonata: Corduliidae, Macromiidae, Gomphidae, Aeshnidae) And Damselfly (Odonata: Calopterygidae) Exuviae Observed At Record Heights In Pinus Strobus And Picea Abies Canopies, Madison M. Laughlin, Jonathan G. Martin, Patrick J. Liesch, Erik R. Olson

The Great Lakes Entomologist

Most odonate species do not typically climb higher than 50 cm when choosing an emergence support. We observed multiple species of odonate nymphs using trees as emergence supports at heights greater than 50 cm and up to 4, 6.9, and 14.6 m for Calopteryx maculata (Ebony Jewelwing), Somatochlora minor (Ocellated Emerald), and Didymops transversa (Stream Cruiser), respectively. These heights represent the greatest heights ever documented for odonate nymphs emergence supports. Our research suggests that some species (S. minor; D. transversa) appear to have a greater affinity for climbing to great heights during emergence than others (Dromogomphus spinosus …