Mortality of aquatic insects during overwintering

Mariia Frolova

Bachelor's thesis

Abstract:

Overwintering is a difficult period for most aquatic insects and therefore is often associated with a high mortality rate. In order to survive, insects use different overwintering strategies and adaptations.The aim of this work is to critically evaluate the advantages and disadvantages of different strategies for overwintering, with the view of mortality and energy requirements as well as a description of the methods used to monitor mortality during the overwintering period in different groups of insects.This Bachelor thesis has been divided into 4 theoretical parts. The first theoretical chapter discusses the main limiting factors on which insect mortality depends during overwintering. The second chapter describes the types of diapause. The third chapter deals with adaptations to the winter cold and ice. In the forth and final chapter, the basics of the methods used to identify insect mortality are discussed.

Keywords

Insect, mortality, overwintering, climatic conditions, life history

Jazyk práce: English

Datum vytvoření / odevzdání či podání práce: 16. 4. 2019

Obhajoba závěrečné práce

• Vedúci: Mgr. Filip Harabiš, Ph.D.

Czech University of Life Sciences Prague

Faculty of Environmental Sciences

Bachelor programme / odbor:
Environmental Scinces / Applied Ecology