Ch 33 - Invertebrates (PART 2 of 2)(1 slide per page)-1

5 m cases in 20 african countries 2009 3185 cases in

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Unformatted text preview: w into stomach lining • Female or offspring emerge from skin blister • No non-human vector 1986: 3.5 M cases in 20 African countries 2009: 3185 cases in 4 countries (85% in S. Sudan) 2010: 1794 cases (95% in S. Sudan) 2011: 1060 (97% in S Sudan) 2012: 542 cases 2013: 115 cases by 9/1) (vs 484 in 2012) 98 Filaria (lymphatic filariasis) (Elephantiasis) ~120M people infected in 73 countries • Spread mainly by biting insects (e.g. mosquitoes & blk flies) • Blocks lymphatic nodes resulting in swelling Swollen testicles in severe cases 99 Loa loa filariasis (African eye worm) •Contracted through biting insects (deer fly, mango fly) •Human form restricted to the rain forest and swamp forest areas of West Africa ~12-13 million humans are infected with the Loa loa larvae. 100 Phylum Nematomorpha: Horse hair worms (Gordian worms) (closely related to Nematodes)(Not in your text book) • ~320 spp • Live in freshwater, leaflitter and algal mats near edges of streams and ponds • Parasites of terrestrial and aquatic insects and freshwater crayfish • Adults have no mouth or functional digestive tract • Causes insect to go crazy and jump in water and drown • Adult then burrows out and is now in water again so can lay eggs 101 Phylum Arthropoda Greek: Jointed Foot Figure 32.11 (Campbell et al.) 102 Arthropod Diversity Arthropods represent > 85% of animal species •Insects ~ 74%; Other arth...
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This note was uploaded on 02/12/2014 for the course BIOLOGY 2011 taught by Professor Woo during the Fall '10 term at University of Central Florida.

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