Results 171 to 180 of about 1,996 (194)
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Nervous inhibition of corpora allata by photoperiod in Pyrrhocoris apterus
Nature, 1976PHOTOPERIOD governs reproduction in many insect species with adult diapause. The nervous and neuroendocrine systems mediate the impact of the environment on ovarian functions. It has been suggested that the daylengths promoting diapause prevent secretion of the activation hormone (most probably a complex of neurohormones) from the pars intercerebralis (
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20‐hydroxyecdysone prevents oxidative stress damage in adultPyrrhocoris apterus
Archives of Insect Biochemistry and Physiology, 2007AbstractInjections of 38 pmol paraquat (1,1′‐dimethyl‐4,4′‐bypyridilium) into adultPyrrhocoris apterus(average body weight 29.6 mg in males and 36.9 mg in females) caused a significant elevation of lipid peroxidation and protein carbonylation and a decline of membrane fluidity in the microsomal brain fraction.
Natraj, Krishnan +3 more
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Journal of Thermal Biology, 2019
Post-diapause, overwintered adults of the true bug Pyrrhocoris apterus L. (Heteroptera, Pyrrhocoridae) form conspicuous aggregations at warm spots in early spring. Using a combination of laboratory experiments and field observations, we assessed the influence of this behaviour on the seasonal timing of reproduction.
Alois, Honek, Zdenka, Martinkova
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Post-diapause, overwintered adults of the true bug Pyrrhocoris apterus L. (Heteroptera, Pyrrhocoridae) form conspicuous aggregations at warm spots in early spring. Using a combination of laboratory experiments and field observations, we assessed the influence of this behaviour on the seasonal timing of reproduction.
Alois, Honek, Zdenka, Martinkova
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Behavioral regulation of developmental cycle in Pyrrhocoris apterus L. (Heteroptera: Pyrrhocoridae)
Oecologia, 1976During the warm season the larvae of Pyrrhocoris apterus select in their natural habitats places with temperatures which do not exceed 24°C on average even at the hours of maximum sunshine. At the same time other places of their habitats have temperatures up to 50°C. This active behavioral selection of the microclimate regulates the speed of P. apterus
A, Honêk, K, Ŝrámková
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Pyrrhocoris apterus Linn. in the United States
1911(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Tremulation of firebags Pyrrhocoris apterus L. (Heteroptera, Pyrrhocoridae)
Moscow University Biological Sciences Bulletin, 2007Tremulatory signals of firebugs Pyrrhocoris apterus L. are described. The oscillogram of the tremulatory signals is given.
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Pyrrhocoris apterus L. (Hem.: Pyrrhocoridae) in Dorset
1982(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Function of the neuroendocrine complex in diapausing Pyrrhocoris apterus females
Journal of Insect Physiology, 1977Abstract The role of the brain in inhibiting the action of corpora allata in diapausing short-day females was investigated by transplantation experiments. The function of the transplanted glands was evaluated by oviposition. Active glands from long-day females remained active for a long period of time after transplantation into short-day females ...
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Anomalies antennaires de Pyrrhocoris apterus L. [Hem. Pyrrhocoridae]
Bulletin de la Société entomologique de France, 1914Gadeau de Kerville Henri. Anomalies antennaires de Pyrrhocoris apterus L. [Hem. Pyrrhocoridae]. In: Bulletin de la Société entomologique de France, volume 19 (8),1914. pp. 258-260.
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Published as part of Heyden, Torsten van der, 2024, New records of Heteroptera from the Canary Islands (Spain), XIII, pp.
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