title: Ivan Dmitrievich Strelnikov. Part 2. Scientific activities
abstract: The article describes and analyzes the scientific activity of the remarkable Russian / Soviet biologist Ivan Dmitrievich Strelnikov. In his long and eventful life, the main areas of his scientific work were: immunology, border areas between ecology and physiology (physiological ecology, the influence of sunlight and temperature on physiology and ecology of different groups of animals – insects, mollusks, crustaceans, reptiles and mammals). He was the first to clarify and place emphasis on the fa
journal: Principles of the Ecology