Mayflies or “Fish flies”
description
Transcript of Mayflies or “Fish flies”
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Mayflies or “Fish flies”
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Description• Mainly aquatic
insects • Nymphs live
for 1 year.
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Description
• Flying adults live less than a day.
• Also called Fish flies
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Metamorphosis• Incomplete & Complete
Metamorphosis• Developmental Adaptation
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Mayfly Metamorphosis
Winged adults emerge from aquatic nymphs
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Mayfly Nymphs• Feathery Gills
(Structural Adaptation)
• Many species can vibrate gills (Behavioral Adaptation)
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Mayfly Nymphs• Live under
stones or in burrows
• Behavioral Adaptation
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Mayfly Nymphs• Cerci
• Defensive adaptation (Structural)
• “Scorpion Stance”
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Mayfly Reproduction
• Adults only purpose is to reproduce
• Emerge in SWARMS!
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Mayfly Swarms• Developmental
Adaptation• More chances to
find a mate• Reduces losses
by predation
QuickTime™ and a decompressor
are needed to see this picture.
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Mayfly Swarms June 2010
swarm picked up on Doppler radar!
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Bibliography1. Encyclopedia of Life. “Mayflies” Accessed Nov 6, 2010
http://www.eol.org/pages/5232. Proceedings of the Indian Academy of Animal
Sciences.Volume 94, Number 3, 351-357 June, 1985. “Behavioural strategies of emergence, swarming, mating and oviposition in mayflies” by K G Sivaramakrishnan and K Venkataraman
3. Buglopedia. “Mayflies” Accessed Nov 6, 2010 http://www.bugsurvey.nsw.gov.au/html/popups/bpedia_02_vsens_ma-ny-a.html
4. “Mayfly Cerci as Defense against Stonefly Predation: Deflection and Detection.” Barbara L. Peckarsky. Oikos Vol. 48, No. 2 (Feb., 1987), pp. 161-170. Accessed Nov 8, 2010 http://www.jstor.org/stable/3565851