test 3 (2) - Iii:' . / '/" NAME Page"l of~lO...

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Iii:' .. / NAME '/" Page"l of~lO . . -. '- / . . :{-,," :Biology 227 -·Principles.ofEcology ; TestThree. : . , . . "I', ~.1·' -; !' ,,". . ~,- ~ :,l'f-r. 1. ,~ '...• J . '.~ t " ~ . J (" l' '" ~.. ~ j - ! .'"., . Dr . .5anders t" ",. April 11, 2007 : ' SHORT ANSWER . " ' . ,.~ .• I ./"" , '" . ,. - . . ' •.,. ... . ,:. -., " '-. . - 1. (4 pt) Therocky intertidal community studied by Robert Paine that included the starfish Pisaster; 'limpets, barnacles, and mussels. 'a) What was the most importantlimiting resource for community? J~~te ' -\'L\ b) The results of his experiment in which he removed Pisaster de~onstrated a: ~~~ :5Qe ci.eo '(~eJod1x) , 2. (4 Terrestrial primary production is generally limited _ _' Put answers below. +2-, -ihi;'=; . tJav"blAq , S'9b£~e"t:) q~i~: diJ¥tt' 0~ -i> +n.V'!pti~~ ') I 3. (3 In experiments with two freshwater diatoms (algae), Tilman found they had different niches their relative dominance a lake depended on: ~~~~~ •.. :'." . +2-.*,O~(JI~ l~VIJ ~t\\ ~,a,k , 4. (3 is the reason there is a limit to number of trophic levels a food web? f,ktaJ)ijt 'e~1J '. ~,:I(J~tailaU1-fvuf"ui {ev.d., +-3 I ~ , .' :"":'. ," 5. (4 Plagiorhynchus worms Puccinia rusts (a fungus) are parasites change either , their hosts' normal behavior or morphology. is changed the hosts below how does it increase likelihood of transmitting parasites to a new host? I . :... ..th.tIP\o.,~i(lrhl""~W>' l;Odm," lVI, t.'ft,t< &0,' ~. "'Wl,~~'J p6:SfhVe ~lYn "k:tX/! j ~ Amp hi .pod -'.' J..., # l' J..... /..•. /l 1 1', lI\/i-Ar Jh" nJ. ./·LJI.h ~rn I ~I ~ LAl1I\flv.\JO ~LAjMVJ 'UW(iWJL-l~VVJ :-:~ {,t.I? P(·uv~, IA~Cf, 11 ~"C. .' .;,/ +'t etJ.f&t bj oVcduJ t 8'01v. ~ A,IIII •• (GIt'lA",'t-' <lIu. "~pldo bt~aAt'Y!i .. ew:J. ,Mustard Plant -¥\AU(YlAtA. f(-~ ~~ /~. tbsdte- . 3fz:t'1j i'W. ,( . ~ . -el ~i~ l1- f hJ!J.u( (;), ~ .f1 (fl-V'l/".· I i~ ffu f IL '~ - pb il fn a;fW~ ,- 'lWltl ~, _". '¥k +£1.A) ~ I If- $f"r iOI ~WJ ;h '~Vl{Yll Spll-01 ~ rtMi~r t"'tl~?to ,~. '~\6(t'lt~ W1(Y~()tA~~. 6. (2pt) Consider mutualism between Pseudomyrmex ants Acacia trees. Name one . benefit of the association to the ants and one 'benefit to,the acacias, ' 1i(M.;l cdNt Vh~U~"v\' "" .r i . . 4 ~ Ttl .~ ~t: fb <-{1M. ti ~ ()A . 'iV ,V' ~ S fO tl' fYllll'(M(.L 'Y t Z- AlfJ. .t£ ~ Ii ~nJ\1jt ,', ' .. ". J' .iW 661'111/1- ft. ., v.C(;.{A'lA. ~ PYb~W~L h-t.iN tl4~ ,~ . ·0- AJ~ .\~t€ ~ I ",.f-VJ; lpl4:f'Vfl AYUl--ar-t.tM,) ~ tVl-(. .VlJfAffitWYJ) f' ~N>lA' r r,r- . --xx Gk " 4 17
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" 7. (3pt) In'an'exRepmentthat l~s~e.(f,severa.l ye(lr~,Brownse~erely redl;lced. the n}lIl,lber of large granivorous rodents from a community that also included small and , insectivorous rode~ts.~ Relative to·'a control community'where thelarge granivores were page2 of 10 KEY NAME: not removed, what happened to populations of the: 'r ' ,',. .': ',' a) s~all granivorolls -i'lnLKtasetLJ tc. tv101Q: _ fpoJ. ... ,~v~ict~ L.be:~<0~ , \e~' ({\~ 'l€i1 r~r1'~~~1 . " ' , ,~b) insectiv.0rous rod~nts - nO~{l lot,.~ ~~ad' ~ O~"~- ~,\~{M;flL and, c) ec_oI6gica~;~ip~e did thisexperiment d~monstrate? ~~." , ,t6Yn.~~dujrO(\J ; ~.' , 8. (4 pt) Compare contrast following groups. ,.' , ' " " , , ~A 4.AJ, fD 1 &tt7tL ~ J1'm~ Dominant species - ~lJt ~ ~~; 1IIrJ. . 0Vl ~. t~mfAnA ''''f (J ! ; r" •. Keysto'1 e speci~S - ~,l( 0.- S~j~ "': fII'n~{(~1j tho,ik SlMil/l"". -tJ,1n1M4 ;&vtpad f {flI7Ifi'llA~~ 1hnfl,.Jb. . Ftk~ ,~Gt~'.fs, ,
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NAME: KEY ~ MULTIPLE CHOIC~ ::Circle the BEST choice for each statement. (2 pts each) 1. C~nsider iw~'~~aphsi beimv; which a~~ related to feeding by sunfish on zooplankton prey: Whic~of fo1l9yY~ng ,statements is true in the context of Optimal Foraging .
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test 3 (2) - Iii:' . / '/&quot; NAME Page&quot;l of~lO...

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