Daily activity time budgets of leaf-beetles (Coleoptera, Chrysomelidae) at different stages of their generation cycle

Sergey Ivanovich Pavlov

doi:10.17816/snv20161110

Abstract

Native (natural) motor responses in the active life phases (adult and larvae) of 4 species of leaf-beetles (Coleoptera, Chrysomelidae) of a one-year generation were studied in natural and laboratory conditions in the Samara region during 19742010. Depending on the dominant biological program at each stage of ontogenesis, type of motor activity (specific movements) and time budgets for the implementation of these movements, the entire generation (reproductive) cycle was divided into 4 stages the functional unit of behavioral reactions. These powers include precopulatory period (puberty adult), stage of copulation (mating adults), the stage of ovulation (the maturation and oviposition) and the stage of embryogenesis (hatching and larvae development). The dynamics of the duration of the light period of the day (when the beetles are active) is considered throughout the observation period. The duration of useful time of the light period of the day (for this latitude) is calculated, i.e. the astronomical day length minus the length of morning and evening twilight (when it is relatively cold, the dew falls, and the insects are inactive), exactly the period when the beetles are most mobile. Real time budgets of motor activity in the period of daylight hours at different stages of the lasting cycle are estimated. The main types of motor responses of leaf beetles are recorded and examined. It is established that all in all there are 13 such reactions, of them 5 are common for all stages, 8 are specific.

Highlights

This work addresses modern approaches to the classification of ecosystems as a tool for understanding of their diversity and relation to geographical and environmental systemic factors, as well as for solving practical problems of conservation and rational management
A classification of ecosystems of south east Ukraine is given based on the dominant vegetation classification
The basis of classification is the division of ecosystems according to the type of macroecotope and edaphotope

Summary

Introduction

This work addresses modern approaches to the classification of ecosystems as a tool for understanding of their diversity and relation to geographical and environmental systemic factors, as well as for solving practical problems of conservation and rational management. ВРЕМЕННЫЕ БЮДЖЕТЫ ДНЕВНОЙ АКТИВНОСТИ ЖУКОВ-ЛИСТОЕДОВ (COLEOPTERA, CHRYSOMELIDAE) НА РАЗНЫХ ЭТАПАХ ИХ ГЕНЕРАЦИОННОГО ЦИКЛА Подсчитаны реальные временные бюджеты двигательной активности в течение светлого времени суток на разных этапах генерационного цикла. Ключевые слова: жуки-листоеды, имаго и личинки, генерационный цикл, 4 этапа репродуктивного процесса: прекопуляционный период, этап копуляции, этап овуляции, этап эмбриогенеза, временные бюджеты активности в течение светлого времени суток, основные типы двигательных реакций.

Results

Conclusion