Diapause induction and termination in the small brown planthopper, Laodelphax striatellus (Hemiptera: Delphacidae). [PDF]
PLoS ONE, 2014 The small brown planthopper, Laodelphax striatellus (Fallén) enters the photoperiodic induction of diapause as 3rd or 4th instar nymphs. The photoperiodic response curves in this planthopper showed a typical long-day response type with a critical ...
LiuFeng Wang +4 more
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Diapause completion in the almond seed wasp, Eurytoma amygdali (Hymenoptera: Eurytomidae) following early low temperature treatment [PDF]
European Journal of Entomology, 2006 Fruit of two almond, Prunus amygdalus Linnaeus, cultivars (Retsou and Truoito) containing diapausing larvae of Eurytoma amygdali Enderlein, were collected in early August from coastal areas in northern Greece.
John T. MARGARITOPOULOS +1 more
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Interspecific Variation in Size, Diapause Intensity, and Moisture Responses of First-InstarSpeyeria(Lepidoptera: Nymphalidae) Larvae [PDF]
Annals of the Entomological Society of America, 2014 AbstractEgg weights of Speyeria (Nymphalidae) species from California were measured to estimate relative sizes of first-instar larvae. First-instar larvae were compared for diapause intensity and for their physiological and behavioral responses to atmospheric humidity and free water.
Sims, Steven R, Shapiro, Arthur M
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Ecophysiological consequences of variability in diapause intensity [PDF]
Ecophysiological consequences of variability in diapause intensityapplication/pdf Diapause intensity (DI) is a physiological trait represented by the duration of diapause under given conditions of environment. In many species, it is highly variable, probably being controlled by multiple genes and tends to form a cline in response to the latitudinal gradient of selection pressure.
Masaki, Shinzo
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The influence of temperature on the intensity of diapause in the eggs of the Emma field cricket (Orthoptera: Gryllidae) [PDF]
The influence of temperature on the intensity of diapause in the eggs of the Emma field cricket (Orthoptera: Gryllidae)application/pdf Series of experiments have been carried out with eggs of the Emma field cricket (=Gryllulus mitratus in former publications) in order to analyse the effects of temperature in early stages of development on the intensity of diapause, which supervenes at around the time the eggs absorb water.
Masaki, Shinzo
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European Journal of Entomology, 2023 The true bug Oxycarenus lavaterae has spread northwards through Europe from the Mediterranean at the beginning of the 21st century. Temperature and photoperiod in particular countries are important for the prediction of further spread.
Oldřich NEDVĚD +2 more
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Acridid ecology in the sugarcane agro-ecosystem in the Zululand region of KwaZulu-Natal, South Africa [PDF]
Journal of Orthoptera Research, 2020 Grasshoppers and locusts are well known crop and pasture pests throughout the world. Periodically they cause extensive damage to large areas of crops and grazing lands, which often exacerbate food shortage issues in many countries.
Adrian Bam, Pia Addison, Desmond Conlong
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Time measurement in insect photoperiodism: The role of photophase duration and light intensity
European Journal of Entomology, 2022 The initial stages of diapause induction - as summer gives way to autumn - involve a process of time measurement in which the duration of daylength (or nightlength) is determined by a photoperiodic 'clock' based upon the circadian system. In many insects
David SAUNDERS
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Ocean deoxygenation and copepods: coping with oxygen minimum zone variability [PDF]
Biogeosciences, 2020 Increasing deoxygenation (loss of oxygen) of the ocean, including expansion of oxygen minimum zones (OMZs), is a potentially important consequence of global warming.
K. F. Wishner, B. Seibel, D. Outram
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Genomically correlated trait combinations and antagonistic selection contributing to counterintuitive genetic patterns of adaptive diapause divergence in Rhagoletis flies [PDF]
, 2021 International audienceAbstract Adaptation to novel environments can result in unanticipated genomic responses to selection. Here, we illustrate how multifarious, correlational selection helps explain a counterintuitive pattern of genetic divergence ...
Hood, Glen +14 more
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