Tortricidae as induced by photoperiodic conditions. A negative correlation was found between male age and the number of copulated females. Sperm competition in butterflies and moths, p. The fecundity and fertility of all females were evaluated daily. Redaelli 1 and Rafael Lorscheiter 1 1 Ph.
|Date Added:||13 June 2014|
|File Size:||28.8 Mb|
|Operating Systems:||Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X|
|Price:||Free* [*Free Regsitration Required]|
Annual Review of Entomology Oriental-fruit-moth Grapholita molesta is one of the most important pest of apple Malus domestica and peach Prunus persica. Multiple copulations enhance the risk of predation and parasitism, but those have also several advantages Torres-Vila et al. This decrease in the amount of substances was observed in the copulatory pouch of females with an increase scrpit the number of previous copulations by the males Marcotte et al.
This behavior of females at low temperatures may be related to the need to accumulate energy to maintain vital functions, and has also been observed in another insect species, Plutella xylostela Lepidoptera: Dickson RC Factors governing the induction of diapause in scfipt oriental fruit moth.
Medium, Script Fonts
Van Der Geest, L. Because of the higher sperm investment in the first copulation, successive matings may cause a decrease in fertility in lepidopteran species. Denlinger DL Dormancy in tropical insects.
In both cases only one mating event was sufnot increase the fertility, as well Morais English pdf Article in xml format Article references How to cite this article Automatic translation Send this article svript e-mail. The program Biostat 4.
Mean fertility of females paired with three days old males was not different from that of monogamic females. Tortricidae at different temperatures.
In this grapuolita, the amount of spermatophores received by the females did not significantly affect their mean fertility, even though virgin males had transferred in only one copula three times the amount of eupyrene released by nonvirgin males. Survival strategies in unfavorable periods are important adaptations for some insect species, allowing them to synchronize their life cycles to periods of suitable conditions.
After their third day of life, males are able to copulate with a high number of females, keeping themselves fertile for a long period. Sperm numbers and female fertility in the moth Plodia interpunctella Hubner Lepidoptera; Pyralidae.
Grapholita tristrigana Clemens, 1865
Redaelli 1 and Rafael Lorscheiter 1. Age; Fertility; Oriental moth; Mating. R Development Core Team R: Grapholita molesta ; Behaviour; pest; Malus domestica ; Prunus persica. Obsolete scientific names junior synonyms and others of Grapholita are: Effects of aging and polygamy on the reproductive performance of Grapholita molesta Lepidoptera: Articles using diversity taxobox Articles with 'species' microformats All pages needing factual verification Wikipedia articles needing factual verification from April Commons category link from Wikidata.
Saunders Scripy Insect clocks. This page was last edited on 23 Octoberat Braz J Biol Acta Phytopathol Acad Scient Hungaricae 7: Journal of the Entomological Society of Southern Africa The circadian rhythm of sperm release in the codling moth, Cydia pomonella.
Grapholita tristrigana Clemens,
Effect of juvenile hormone on the central nervous processing of sex pheromone an insect. Development of non-diapausing individuals and those from the second generation tended to be longer in photophases between 10h and 14h long. Pesq Agropec Bras Services on Demand Article. Even though the males emerge with a reproductive system completely formed, the maturation and volume of the glands normally changes throughout the adult phase in tortricids Benz In order to evaluate the effects of polyandry and polygyny in the reproductive performance of this species, newly-emerged adults were submitted to either of two treatments: