نتایج جستجو برای: sublethal effects

تعداد نتایج: 1546470  

Journal: :Journal of economic entomology 2016
Adam G Dolezal Jimena Carrillo-Tripp W Allen Miller Bryony C Bonning Amy L Toth

Honey bees are exposed to a variety of environmental factors that impact their health, including nutritional stress, pathogens, and pesticides. In particular, there has been increasing evidence that sublethal exposure to pesticides can cause subtle, yet important effects on honey bee health and behavior. Here, we add to this body of knowledge by presenting data on bee-collected pollen containin...

Journal: :Nihon eiseigaku zasshi. Japanese journal of hygiene 1984
M Miyashita

Uviovo and Beatty1) reported that zinc decreased brood size and body size of young at birth, but had no effect on the intervals between broods in the guppy. Boyd2) reported that a threshold concentration of organochloric insecticides such as DDT, dieldrin, toxaphen and lindane caused the pregnant females of the mosquitofish to abort. However, little attention has been paid to the stage of pregn...

ژورنال: بوم شناسی آبزیان 2016
Davoodi, Reza, Gholami, Razieh, Nooryazdan, Hamidreza, Oujifard, Amin,

We conducted this study to determine the chronic effects of Azadirachtin on growth parameters, survival and gill morphology of grass carp [Ctenopharyngodon idella (C. idella)] with an average weight of 11.09±2.3g. We equally distributed 120 fish between three treatments and a control group, with three replicates each. Sublethal concentrations of poison, 0.073 (10% LC50), 0.15 (20% LC50), 0.22...

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