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Insect Extinctions and Insect Survival

Conservation Biology, 2006
Dunn (2005) puts forward an interesting challenge: “If we are serious about insect conservation, we need to spend more time and money documenting extinctions.” Arguably, we should spend more resources ensuring that the ship stays afloat and is on course rather than perfecting technology to record its sinking.
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The insect abdomen—a heartbeat manager in insects?

Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2002
Different possibilities of coordination between circulation, respiration and abdominal movements were found in pupae of Pieris brassicae, Tenebrio molitor, Galleria mellonella and Leptinotarsa decemlineata. Coordination principles depend on metabolic rate: the need to support circulation with abdominal movements appears only at higher metabolic rates ...
U, Tartes, A, Vanatoa, A, Kuusik
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Insects in hypoxia

Journal of Insect Physiology, 2001
Insects exhibit a remarkable array of adaptations that allow them to handle more or less severe hypoxia associated with numerous aquatic and terrestrial habitats. We consider these habitats and then discuss physiological, behavioral and morphological mechanisms that facilitate insect life under oxygen deprivation.
W W., Hoback, D W., Stanley
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RESPIRATION OF INSECTS

Science, 1927
These experiments would seem to prove that no special spiracles are used for inhaling and others used for exhaling, but rather that all are alike in this respect, as the abdomen expands air is taken in and as the body contracts the gases are exhaled.
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Putting the insect into the birch?insect interaction

Oecologia, 2003
Leaf maturation in mountain birch (Betula pubescens ssp. czerepanovii) is characterized by rapid shifts in the types of dominant phenolics: from carbon-economic flavonoids aglycons in flushing leaves, via hydrolysable tannins and flavonoid glycosides, to carbon-rich proanthocyanidins (condensed tannins) in mature foliage.
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