Bio 201 F09 True lect 15 (L16)v2r

Bio 201 F09 True - Todays factoid Permafrost and global warming story posted on Biology in the News on BB melting of Arctic permafrost(soil that

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Today’s factoid ‘Permafrost and global warming’ story posted on Biology in the News on BB melting of Arctic permafrost (soil that has been previously frozen all year around for a long period of time) is now expected to release up to 1.1 gigatons of carbon into the atmosphere as CO2 this is due to thawing making organic carbon accessible to microbes and other organisms a ‘positive feedback’ mechanism worsening climate change http://nsidc.org/frozenground/images/ permafrost_distribution_in_the_arctic.jpg
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update • slide in Monday’s lecture stated that the incidence of elephantiasis is ~250 million worldwide • recent data from World Health Organization has lower estimate – ~120 million – http://www.who.int/mediacentre/factsheets/fs102/ en/ • thanks Linie Hou!
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Barnacles are crustaceans modifed For sessile liFe style http://www.njscuba.net/biology/img/anatomy_barnacle.gif “…a little shrimp-like animal, standing on its head in a limestone house and kicking food into its mouth.” -Louis Agassiz
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Found in huge diversity of aquatic and marine habitats. There may be ~ 1 copepod / liter in the ocean. Ocean volume: 1.37 x 10 14 liters Copepods: Possibly most abundant animal on earth Most few mm In length herbivores parasites, or symbionts
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Chelicera (singular) Pedipalp Latin [“foot”+“touch”]
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Insect: Head, Thorax, Abdomen
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Evolution of the insect wing pdm is also called nubbin in Drosophila (fruit Fies) this gene encodes a protein that regulates transcription of other genes
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springtails apterygotes (bristletails, silverfish) mayflies,dragonflies (wings cannot be folded back) exopterygotes (wings develop outside body) Hemimetabolous incomplete metamorphosis endopterygotes (wings develop inside body) Holometabolous complete metamorphosis >80% of all insect species e.g. grasshoppers, roaches, locusts, mantids, stick insects, termites, earwigs, aphids, cicadas e.g. beetles, butterflies, moths, bees, wasps, ants, flies HEXAPODS, NOT INSECTS INSECTS PTERYGOTES [WINGED INSECTS] A current view of insect relationships
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Insect development some have direct development some indirect many different varieties
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This note was uploaded on 12/22/2009 for the course BIO 201 taught by Professor True during the Fall '08 term at SUNY Stony Brook.

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Bio 201 F09 True - Todays factoid Permafrost and global warming story posted on Biology in the News on BB melting of Arctic permafrost(soil that

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