Evolutionary ecology of Odonata: a complex life cycle perspective

Area of Science:

• Evolutionary Ecology
• Developmental Biology
• Entomology

Background:

• Insects often exhibit complex life cycles with distinct larval and adult stages.
• Odonates (dragonflies and damselflies) possess aquatic larval and terrestrial adult phases, presenting a model for studying life-stage interactions.

Purpose of the Study:

• To analyze and summarize the complex life cycle of Odonata from an ontogenetic perspective within evolutionary ecology.
• To identify pathways generating carry-over effects between aquatic and terrestrial stages and mechanisms that decouple these stages.

Main Methods:

• Review and synthesis of existing literature on Odonata ontogeny.
• Application of an evolutionary ecology framework to understand life-stage transitions.
• Identification of morphological, physiological, and behavioral mechanisms influencing inter-stage effects.

Main Results:

• Carry-over effects between aquatic larval and terrestrial adult Odonata stages were identified via specific pathways.
• Mechanisms decoupling life stages, such as compensatory strategies and environmental stressors during metamorphosis and adulthood, were highlighted.
• The study identified factors that can override the influence of prior environmental conditions on subsequent life stages.

Conclusions:

• Findings have implications for the evolution, selection, and fitness of Odonata populations.
• Carry-over and numerical effects significantly shape population dynamics, metapopulation structure, and community interactions across habitats.
• Understanding these ontogenetic processes is vital for applied conservation strategies for Odonata.