Effect of seasonality and pond permanence on aquatic insect emergence from grassland pondsShow full item record
Title | Effect of seasonality and pond permanence on aquatic insect emergence from grassland ponds |
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Author | Freeman, Lexi |
Date | 2022-04-22 |
Genre | Thesis |
Degree | Master of Science |
Abstract | The objectives of this study were to examine the effects of seasonality and pond permanence on aquatic insect emergence. Pond permanence is based on 3 pond types: permanent ponds that continuously hold water, semi-permanent ponds that dried and refilled with water, and temporary ponds. We conducted the present study in 14 human-made farm ponds at the Lyndon B. Johnson (LBJ) Grasslands in North Texas. Emergent insects were collected on 9 dates from March through July in 14 ponds. Nine taxonomic groups of aquatic insects were captured in adequate numbers for analysis: Odonata: Anisoptera (dragonflies) and Zygoptera (damselflies); Ephemeroptera (mayflies); Trichoptera (caddisflies); and Dipterans: Tipulidae (crane flies); Chaoboridae (phantom midges); Chironomidae: Tanypodinae (predatory chironomids) and Chironominae/Orthocladinae (herbivorous and detritivorous chironomids); and Ceratopogonidae (biting midges). We found both a seasonal effect and effect of pond type in several taxa, with seasonal flux dependent on emergent insect size and pond permanence. |
Link | https://repository.tcu.edu/handle/116099117/52531 |
Department | Biology |
Advisor | Chumchal, Matt Drenner, Ray |
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Embargoed until: 2032-04-25
This item appears in the following Collection(s)
- Masters Theses [4089]
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