Difference between revisions of "'''Oviposition and Egg Desiccation'''"

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'''2016'''
 
'''2016'''
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*[[Media:Oviposition Poster Final.pdf| Oviposition Habitat Selectivity of Tailwater Macroinvertebrates: A Methodological Approach from the Colorado River Basin]]
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*[[Media:Miller SFS C10 Hydroecology.pdf| Novel Hydrologic Regimes Disrupt Insect Life History Strategies: Effects of Hydropeaking on Insect Oviposition]]
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*[[Media:USUTailwater 30Nov2016.pdf| Controls on the Structure and Function of Tailwater Macroinvertebrate Assemblages, USU progress report November 2016]]
 
*[http://www.usu.edu/buglab/Projects/CurrentProjects/#item=123 Macroinvertebrate Oviposition (egg-laying) Habitat Preferences on the Green River below Flaming Gorge Dam]
 
*[http://www.usu.edu/buglab/Projects/CurrentProjects/#item=123 Macroinvertebrate Oviposition (egg-laying) Habitat Preferences on the Green River below Flaming Gorge Dam]
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*[[Media:20160218 FoodbaseBottleneck.pdf| A life history bottleneck for aquatic insects arising from load following]]
 
*[[Media:Kennedy 2016 HydropowerEPT.pdf| Kennedy et al. 2016. Flow Management for Hydropower Extirpates Aquatic Insects, Undermining River Food Webs. BioScience]]
 
*[[Media:Kennedy 2016 HydropowerEPT.pdf| Kennedy et al. 2016. Flow Management for Hydropower Extirpates Aquatic Insects, Undermining River Food Webs. BioScience]]
  

Revision as of 16:17, 27 March 2017



Oviposition and Egg Desiccation Studies below Flaming Gorge and Glen Canyon Dams

Kennedy's 2016 Bioscience paper presents a conceptual model describing how hydropower flows could be limiting aquatic insect diversity and production by limiting the reproductive success of insects accustom to laying their eggs along the shoreline. It provides supporting data from an egg desiccation study done below Flaming Gorge Dam, light trap data collected in the Grand Canyon, and a comparison of fluctuation intensity and EPT diversity in several western US hydropower tailwaters. The paper concludes that egg desiccation from fluctuating flows is likely a leading factor in limiting aquatic insect diversity and production in tailwaters below hydropower facilities. The paper also proposes a bugflow experiment to be tested at Glen Canyon Dam as a possible mitigation for fluctuating flows made for hydropower production.

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Updates

EPThydropeakingModel.jpg MidgeAbundanceFlow.jpg DesiccationMortality.jpg EPTdiversityHydropeaking.jpg


Links and Information

Papers and Presentations

2016

Other Stuff

MacroinvertEggmasses.jpg

Macroinvertebrate egg masses on the Green River below Flaming Gorge Dam

P1020356.JPG

Caddis hatch below Parker Dam. There are several species of EPT below Parker and Davis Dam in spite of daily fluctuations that exceed 6 feet per day.