منابع مشابه
Oak cynipid gall inquilines of Iran (Hym.: Cynipidae: Synergini), with description of new species
ده گونه زنبور اینکوئیلاین (inquiline) همزیست با زنبورهای گالزای بلوط (خانواده‌ی Cynipidae) متعلق به قبیله‌های Cynipini و Synergini برای اولین بار از ایران گزارش می‌شوند. مناطق پراکنش و ارتباط میزبانی آنها نیز ارائه می‌گردد. این گونه ها عبارتند از: Ceroptres cerri Mayr، C. clavicornis Hartig، Saphonecrus haimi (Mayr)، Synergus gallaepomiformis (B. de Fonsc.)، S. pallidipennis Mayr، S. pallipes H...
متن کاملa study on rate making and required reserves determination in reinsurance market: a simulation
reinsurance is widely recognized as an important instrument in the capital management of an insurance company as well as its risk management tool. this thesis is intended to determine premium rates for different types of reinsurance policies. also, given the fact that the reinsurance coverage of every company depends upon its reserves, so different types of reserves and the method of their calc...
Divergent host-plant use promotes reproductive isolation among cynipid gall wasp populations.
Ecological speciation occurs when reproductive isolation evolves as a consequence of divergent natural selection among environments. A direct prediction of this process is that ecologically divergent pairs of populations will exhibit greater reproductive isolation than ecologically similar pairs of populations. By comparing allopatric populations of the cynipid gall wasp Belonocnema treatae inf...
متن کاملThe enemy hypothesis: correlates of gall morphology with parasitoid attack rates in two closely related rose cynipid galls.
We tested the enemy hypothesis for gall morphology on a model system comprising two Diplolepis rose gall wasp species and their associated parasitoids. The enemy hypothesis predicts both that gall traits will influence parasitoid attack rates within species, and that galls with contrasting morphologies will support different parasitoid communities. This hypothesis is supported by studies at bot...
متن کاملTranscriptome profiling of the crofton weed gall fly Procecidochares utilis.
Procecidochares utilis is a tephritid gall fly, which is known to be an effective biological agent that can be used to control the notoriously widespread crofton weed Eupatorium adenophorum. Despite its importance, genetic resources for P. utilis remain scarce. In this study, 1.2 Gb sequences were generated using Illumina paired-end sequencing technology. De novo assemblies yielded 491,760 cont...
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ژورنال
عنوان ژورنال: Nature
سال: 1902
ISSN: 0028-0836,1476-4687
DOI: 10.1038/065561c0