Sandall 2020 Dissertation Supplementary Appendix B
Dragonflies spend much of their lives as aquatic larvae before emerging as terrestrial adults. In order to survive for up to several years in these underwater habitats, they have developed behaviors to avoid becoming prey to other organisms in their environment. Hiding in aquatic substrates in a burrow represents a larval life history strategy that is present in over 1000 species of dragonflies in the Cordulegastridae, Gomphidae, and Petaluridae families. This literature review of digital specimen data and primary literature examines the morphology, aquatic habitats, and biogeographic realms of burrowing dragonfly larvae. Due to the unique pressures of the complex life cycle on the overall population dynamics of dragonflies, I discuss the effects of water body traits on the physiology of the larvae. In this context, I identify how this relates to both detection and protection of the one third of dragonfly taxa that exhibit burrowing as larvae. This review indicates that while the majority of burrowing dragonflies are present in the literature, there are biogeographic realms that have particular room for exploration and that trait data availability is variable between taxa. Due to the unique interactions with the substrate in which burrowing dragonflies live, these larvae may face increased aquatic habitat threats in the face of climatic changes and human alterations to the environment.
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| Work Title | Sandall 2020 Dissertation Supplementary Appendix B |
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| License | CC BY 4.0 (Attribution) |
| Work Type | Dissertation |
| DOI | doi:10.26207/64h1-s455 |
| Deposited | June 24, 2020 |
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