• G K Veeresh

      Articles written in Proceedings – Animal Sciences

    • Plant virus diseases transmitted by whiteflies in Karnataka

      V Muniyappa G K Veeresh

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      Whiteflies (Bemisia tabaci) transmitted yellow mosaic, yellow vein mosaic and leaf curl diseases of economically important crops. Horsegram yellow mosaic virus and cowpea mild mottle virus have been isolated and characterised in India. Except these two viruses the causal agents of other whitefly transmitted diseases are not known.

    • Behavioural analysis of feeding and breeding in Lamellicorn beetles

      G K Veeresh K Veena Kumari

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      Social behaviour is recognised in nine families of Coleoptera. The Lamellicorn beetles, in the families Passalidae and Scarabaeidae exhibit varying types of social behaviour.

      Sound production by stridulation in both the larvae and adult passalids is attributed as a social behaviour to hold the families together.

      Some South American scarabs live very close to the anus of sloths and monkeys in order to oviposit on their dung. Many have association with ant nests either for food, shelter or breeding.

      The dung beetles present a whole sequence of bisexual cooperation in the nesting behaviour, excavation and ball-rolling. Parental care is exhibited to a varying degree. An attempt has been made to review the feeding and breeding behaviour of Lamellicorn beetles in the light of available Indian literature including studies made by the authors.

    • Impact of differential feeding on the reproduction of tiger beetleCicindela cancellata DeJean (Cicindelidae: Coleoptera)

      T Shivashankar G K Veeresh

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      Tiger beetles belonging to the family Cicindelidae are exclusively predaceous and have great impact on the natural eco-balance. Recent studies have revealed the existence of more than 300 species all over India under divergent habitats and none have been exploited for biological control of insect pests. Studies on the impact of differential feeding on the reproduction ofCicindella cancellata revealed a definite relationship between the quality and quantity of food consumed by adults on the fecundity, egg size, longevity of the adults, larval emergence pattern and the survivability of first instar larvae.Corcyra cephalonica larvae fed 3 times a day (55·74 mg) resulted in maximum egg production, longer adult life and longer survival of first instar larvae, followed by Corcyra, one larvae per day (37·16 mg) and mixed food of spiders, hoppers and Corcyra (alternately) 32·81 mg). Least fecundity was observed when fed with ants alone and no eggs with no food.

    • Foraging activity and temperature relations in the ponerine antHarpegnathos saltator Jerdon (Formicidae)

      T Shivashankar H C Sharathchandra G K Veeresh

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      Harpegnathos saltator Jerdon constructs nests in the shade of plants and are strictly individual foragers. The nest entrance is barricaded by seeds, seed stalks and faecal pellets of rodents, the function of which is not clear. The diurnal foraging activity is controlled by a combination of surface temperature and light. High midday surface temperature resulted in the bimodal transit activity in a day.

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