No abstract

Species diversity and number of potential pollinator species on H. officinalis seed crops in various ecotopes of farm fields were studied under the influence of “Bi-58 new” insecticide treatment and without preliminary treatment. The presence of 16 insect species belonging to four families of the genus Hymenoptera (Megachilida, Apidae, Halictidae and Vespidae), two families of the Diptera row (Syrphidae and Stratiomyidae) and one family of the genus Lepidoptera (Lycaenalidae) has been identified on the seed crops of H. officinalis. The insecticidal treatment in general did not significantly affect the total number of pollinators, but changed the species composition of pollinators and their number on the field area. As much as possible, the decrease in the prevalence and number of the Megachilida species was affected.

In birds, acute stress (a three-day 12-hour inversion of the photomode) is associated with the dominant activity of the sympathetic hypothalamus and hippocampus, which suppress the tone of the parasympathetic section and the reticular formation of the midbrain. The effect of hyperglycemia on the background of a negative chronotropic effect indicates a mismatch of the functions of the autonomic sections of the hypothalamus on the 30th day. Chronic stress in birds (30-days crowding) causes persistent pathological stress of the functions of the anterior hypothalamus and reticular formation of the middle brain with the suppression of parasympathetic tone of the posterior hypothalamus and high functional activity of the hippocampus, determining the switching of the ventricles of the heart to a more economical mode of functioning by the 30th day. Using central cholinoblockers or tranquilizers, having a cholinoblocking component in the mechanism of its influence during neurogenic stress and in the post-stress period is excluded, but it is possible to use stressprotektors.