Results 31 to 40 of about 7,037 (232)

Mitotic activity patterns and cytoskeletal changes throughout the progression of diapause developmental program in Daphnia

open access: yesBMC Cell Biology, 2018
Background Diapause is a form of dormancy that is genetically predetermined to allow animals to overcome harsh environmental conditions. It is induced by predictive environmental cues bringing cellular activity levels into a state of suspended animation.
Luxi Chen   +8 more
doaj   +1 more source

Watching the days go by: Asymmetric regulation of caterpillar development by changes in photoperiod

open access: yesEcology and Evolution, 2021
Many insects possess the plastic ability to either develop directly to adulthood, or enter diapause and postpone reproduction until the next year, depending on environmental cues (primarily photoperiod) that signal the amount of time remaining until the ...
Olle Lindestad   +2 more
doaj   +1 more source

Normal sleep bouts are not essential for C. elegans survival and FoxO is important for compensatory changes in sleep [PDF]

open access: yes, 2018
Additional file 6: Decreased lag-2 function does not slow vulval development. The progeny of wild type and lag-2(q420) animals raised at 25.5 °C were selected at the L4 stage, prior to lethargus entry. Vulval eversion was scored after 3 h; the percentage
Bennett, Heather L   +7 more
core   +4 more sources

Dynamics of a Hyperparasitic System with Prolonged Diapause for Host*

open access: yesInternational Journal of Modern Nonlinear Theory and Application, 2013
A hyperparasitic system with prolonged diapause for host is investigated. It is assumed that host prolonged diapause occur at larval stage, and parasitoid attack is limited to egg stage before the initiation of host diapause. Such behavior has been reported for many ichneumons.
Limin Zhang, Chaofeng Zhang
openaire   +2 more sources

Host Plants and Habitats of the Baltimore Checkerspot Butterfly, \u3ci\u3eEuphydryas Phaeton\u3c/i\u3e (Lepidoptera: Nymphalidae), in the Great Lakes Region [PDF]

open access: yes, 2017
The habitats and host plants of Euphydryas phaeton in the Great Lakes region are examined using data from several different populations spread over much of the region.
Scholtens, Brian G
core   +2 more sources

Integrated Management of European Cherry Fruit Fly Rhagoletis cerasi (L.): Situation in Switzerland and Europe [PDF]

open access: yes, 2012
: The European cherry fruit fly, Rhagoletis cerasi (L.) (Diptera: Tephritidae), is a highly destructive pest. The low tolerance for damaged fruit requires preventive insecticide treatments for a marketable crop.
Agee   +145 more
core   +2 more sources

Determinants of the population growth of the West Nile virus mosquito vector Culex pipiens in a repeatedly affected area in Italy [PDF]

open access: yes, 2014
Background The recent spread of West Nile Virus in temperate countries has raised concern. Predicting the likelihood of transmission is crucial to ascertain the threat to Public and Veterinary Health.
Bonfanti, L.   +5 more
core   +1 more source

Adaptive developmental delay in Chagas disease vectors: an evolutionary ecology approach. [PDF]

open access: yesPLoS Neglected Tropical Diseases, 2010
BACKGROUND:The developmental time of vector insects is important in population dynamics, evolutionary biology, epidemiology and in their responses to global climatic change.
Frédéric Menu   +4 more
doaj   +1 more source

Parasitoids of \u3ci\u3eChionaspis Pinifoliae\u3c/i\u3e (Homoptera: Diaspididae) in Iowa [PDF]

open access: yes, 2017
Three parasitoids (Hymenoptera: Encyrtidae: Aphelininae), Aphytis diaspidis, Coccobius varicornis, and Marietta pulchella, were recovered from field collections of the pine needle scale, Chionaspis pinifoliae, on Pinus sylvestris in central Iowa ...
Burden, Daniel J, Hart, Elwood R
core   +2 more sources

Effects of larval diapause and the juvenile hormone analog, fenoxycarb, on testis development and spermatogenesis in the wax moth, Galleria mellonella (Lepidoptera: Pyralidae)

open access: yesEuropean Journal of Entomology, 2018
Facultative diapause in the wax moth, Galleria mellonella, occurs in the final larval instar. Application of juvenile hormone analogs (JHAs) to the larvae of this species has similar effects to diapause, in terms of prolonged development of the larval ...
Piotr BEBAS   +3 more
doaj   +1 more source

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