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  • Life history and food habits of Isoperla quinquepunctata (Banks) (Plecoptera: Perlodidae) from a spring source and Willow Creek in the Piceance Basin, Colorado [Elektronski vir]
    Martinson, Robert J. ; Sandberg, John B. ; Kondratieff, Boris C.
    Life history aspects of the perlodine stonefly Isoperla quinquepunctata (Banks) are reported from the Piceance Basin, Colorado. We wished to discover if the conditions of a spring source would affect ... the life cycle and relative food habits of I. quinquepunctata as compared to nearby Willow Creek, a typical region small stream site. It is often unusual to find stoneflies directly in a spring source in the southern Rocky Mountains, which had dissolved oxygen concentrations well below 5.2 mg/l (58% saturation), but withflowing water. Isoperla quinquepunctata exhibited a univoltine slow life cycle with extended hatching at both sites. At the spring, while the largest I. quinquepunctata nymphs ingested a variety of food types, they did not switch to carnivory as has usually been reported for Isoperla. Diatoms comprised the majority of the gut contents of nymphs from both the spring and Willow Creek sites, with detritus a more important component at the Willow Creek site.
    Vir: Illiesia [Elektronski vir] : international journal of stonefly research. - ISSN 1854-0392 (Vol. 8, no. 12, 13. avg. 2012, str. 125-133)
    Vrsta gradiva - e-članek
    Leto - 2012
    Jezik - angleški
    COBISS.SI-ID - 1139189

    Povezava(-e):

    http://www2.pms-lj.si/illiesia/papers/Illiesia08-12.pdf
    Digitalna knjižnica Slovenije - dLib.si

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