Mechanisms controlling development, growth, and metabolism are coordinated in response to changes in environmental conditions, enhancing the likelihood of survival to reproductive maturity. Much remains to be learned about the molecular basis underlying environmental influences on these processes. C. elegans larvae enter a developmentally dormant state called L1 diapause when hatched into nutri...

A major expenditure in vector biology laboratories is the rearing of mosquitoes. Most mosquito colonies require substantial effort to maintain, including frequent bloodmeals for optimal performance. Successful cryopreservation of mosquitoes continues to be elusive. Although using diapause as a storage mechanism is an option for mosquito preservation, several obstacles include the lack of a well...

The insect neuropeptide family FXPRLa, which carries the Phe-Xaa-Pro-Arg-Leu-NH2 sequence at the C-terminus, is involved in many physiological processes. Although ligand-receptor interactions in FXPRLa signaling have been examined using in vitro assays, the correlation between these interactions and in vivo physiological function is unclear. Diapause in the silkworm, Bombyx mori, is thought to ...

The effect of La Crosse (LAC) virus infection on Aedes triseriatus overwintering success was determined. Eggs from LAC virus transovarially infected (LAC TOT+) and uninfected (LAC TOT-) Ae. triseriatus colonies were induced into diapause, held in natural conditions, and returned to the laboratory at predetermined times for assay of diapause, mortality, and filial infection rates, and to examine...

We propose an optimal control framework to describe intra-seasonal predator-prey interactions, which are characterized by a continuous-time dynamical model comprising predator and prey density, as well as the energy budget of the prey over the length of a season. The model includes a time-dependent decision variable for the prey, representing the portion of the prey population in time that is a...

couch potato (cpo) encodes an RNA binding protein that has been reported to be expressed in the peripheral and central nervous system of embryos, larvae and adults, including the major endocrine organ, the ring gland. A polymorphism in the D. melanogaster cpo gene coding region displays a latitudinal cline in frequency in North American populations, but as cpo lies within the inversion In(3R)Pa...

Abstract The work presents the results of a study features seasonal development dangerous invasive insect box tree moth, Cydalima perspectalis Walker, specialised on plants genus Buxus L. Models for forecasting dates resumption larvae activity in spring after winter diapause, first adult flights overwintered generation and appearance summer have been developed southern regions Russia. accuracy ...

As warm-adapted insects of tropical origin, Odonata cope with cold periods by seasonal regulation and diapause. A model for larval-overwintering species is proposed three response patterns related to the timing emergence, which can be predicted from cues during last few stadia. For emergence present season, there an often time-constrained preemergence development, accelerated long days higher t...

Embryonic diapause or temporary cessation of embryonic development is a common phenomenon in the plant and animal species. embryogenesis blastocyst stage reproductive strategy characterized by delayed implantation uterus. It defined over 130 species mammals. occurs obligate facultative cases where embryo from to later stages not appropriate (eg, during environmental conditions lactation). The b...

Photoperiod induced dormancy for 14 North American strains of Aedes albopictus were determined at 21, 26 and 29 degrees C. Strains tested at 21 degrees C and intermediate temperatures of 25-27 degrees C demonstrated clear photoperiodic responses whereas temperatures of 29 degrees C and above, greatly reduced or negated diapause incidence. A suboptimal larval diet increased the percentage diapau...