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Showing 1 to 5 of 5 for “"Anax junius"”.
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The Dragonfly Fauna (Odonata:Anisoptera) of a Lentic Habitat in Southwestern Missouri
… were considered dominants. E. simplicicollis and Anax junius (Drury), occurring pond side for almost six months, had the longest flight seasons and E. simplicicollis had the longest reproductive period, extending over four months. Larval collections were made over an 11 month period, extending …
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Research in motion: patterns of large-scale migration in dragonflies and birds
… managers. In contrast, understanding why and how Anax junius Drury (Odonata: Aeshnidae) is moving across North America does not have such direct conservation implications. The species is not endangered, nor have threats to its range or behavior been suggested. My interest instead grew from the …
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Ecology of benthic macroinvertebrates in experimental ponds
… floridanus (Ephemeroptera: Baetidae), Anax junius (Odonata: Aeshnidae), Gomphus exilis (Odonata: Gomphidae), and Enallagma civile (Odonata: Coenagrionidae). Growth rates ranged from 0.011 to 0.025 mg DW/d for Ephemeroptera and from 0.012 to 0.061 mg DW/d for Odonata. Annual production …
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An Investigation of the Effect of Malathion on Adaptive Plasticity of Pseudacris sierra
… to the predatory dragonfly larvae <em>Anax junius</em>. The results of this experiment show that malathion alone caused the tail muscle depth to increase to the same magnitude as tadpoles that only experienced a predator’s presence. Malathion also caused a significant increase in tail …
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Possible Effects Of Climate Change On Induced Defenses In Tadpoles
… long) with four predator treatments (caged Anax dragonfly nymph presence/absence x caged Belostoma water bug presence/absence) to address two questions. First, do the two factors of hydroperiod and predator presence interact either synergistically or antagonistically? Secondly, do tadpole …