نتایج جستجو برای: hyposoter clausus
تعداد نتایج: 103 فیلتر نتایج به سال:
گونه‌های زیادی از جنس فرفیون (Euphorbia) از خانواده Euphorbiaceae در مراتع استان آذربایجان‌شرقی پراکنده‌هستند. گونه‌های این جنس دارای شیرابه‌ای سمی در تمام قسمت‌های گیاه می‌باشند. در طی این بررسی آفات برگ‌خوار دو گونه متداول فرفیون شامل Euphorbia seguieriana Neck و Jaub & Spach E. heteradenia به‌ترتیب در نواحی مرتعی تیکمه‌داش و هوراند جمع‌آوری و شناسایی‌گردید. شبپرههای برگ‌خوار Hyles lineata...
The parasitoid wasp, Hyposoter horticola, parasitizes a nearly fixed fraction of its host butterfly larvae within a host metapopulation of 300–500 local populations in a 50 3 70-km area. We show, through laboratory observation, that the wasp lays eggs in fully developed larvae that have not yet hatched from the egg, constraining the period of host vulnerability to several hours out of the host’...
The venom gland is a conserved organ in Hymenoptera that shows adaptations associated with life-style diversification. Few studies have investigated venom components and function in the highly diverse parasitic wasps and all suggest that the venom regulates host physiology. We explored the venom of the endoparasitoid Hyposoter didymator (Campopleginae), a species with an associated polydnavirus...
1. We describe the pattern of colonization of suitable, but currently empty, habitat by a host butterfly and two specialist parasitoids living in a highly fragmented landscape. 2. Using survey data collected over 8 years, field sampling and small-scale experiments we show that the ability of the Glanville fritillary butterfly (Melitaea cinxia) to colonize new habitat is intermediate between tha...
Many thousands of endoparasitic wasp species are known to inject polydnavirus (PDV) particles into their caterpillar host during oviposition, causing immune and developmental dysfunctions that benefit the wasp larva. PDVs associated with braconid and ichneumonid wasps, bracoviruses and ichnoviruses respectively, both deliver multiple circular dsDNA molecules to the caterpillar. These molecules ...
Abstract Integrated Pest Management (IPM) programs are alternatives to classical pest control through the application of chemical insecticides. IPM goal is maintain populations below economically injurious levels minimizing use In recent years, research on insect viromes has led discovery many novel viral pathogens in pests, some them producing covert infections that do not cause evident sympto...
Social insects and insects that provision nests are well known to have complex foraging behaviour involving repeated visits to learned locations. Other insects do not forage from a central location and are generally assumed to respond to resources by simple attraction without spatial memory. This simple response to resource cues is generally taken as giving rise to patterns of resource use that...
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