BIOL202 - Study Guide - Lecture 6 - Trophic Interactions I

BIOL202 - Study Guide - Lecture 6 - Trophic Interactions I...

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LECTURE 6: STUDY GUIDE TROPHIC INTERACTIONS BETWEEN SPECIES I: DEFINITIONS AND DEFENSES Reading: Red/Black Campbell 7 th ed, pgs. 549-550, 552-556 esp. Fig 28.11 also pgs 1163, 1161-1162 Black/Grn Campbell, 6 th ed., pgs. 545-549, 555-559 esp. Fig 28.13, also pgs 1180, pg 779-780, 1178-1180 Supplemental Readings on the course website: Diamond, J.M. 1999. Dirty eating for healthy living. Nature 400: 120-121. Musser, R.O., S. M. Hum-Musser, H. Eichenseer, M. Peiffer, G. Ervin, J.B. Murphy, G.W. Felton. 2002. Caterpillar saliva beats plant defences. Nature 416: 599-600. Terminology : trophic interaction parasitism endoparasite vs. ectoparasite parasitoid herbivory/herbivore phytophagous insect gall secondary plant compound Website: http://www.pbs.org/wgbh/evolution/educators/course/session4/explore_b.html Click to watch a short film on “The Evolution of Camouflage” (just below picture of leaf). Link is also provided on the course website. Just for fun (unless you are flying squirrel): http://www.nps.gov/olym/owl.htm Questions from lecture/text : 1. In what main way does parasitism differ from most other types of trophic interactions? 2. Many parasites are protozoan-protists. Be familiar with the fundamental characteristics of these organisms.
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3. What is the modus operandi of a parasitoid? In other words, what do parasitoids do to their victims? If you did not take notes on this, you may want to look online for an answer. Your answer should reveal why some biologists classify parasitoids as predators but others argue that they are really parasites (not that it matters all that
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BIOL202 - Study Guide - Lecture 6 - Trophic Interactions I...

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