215 



mdn&ig vitamma. nnf Mil ■minn irily imliiiniiitiTriiiiii: >iiiTi Tiiiin fiiii. famucK^mSBl" 



systeott ia. the Asctic agygtjrolariy vubienble to iiiQMCt% poflnSBtts. : .. V.V ;j- 



Ihis impact oay be hi^^ter in tliB AjDCtE tban in i^ 

 Elwneatal Idaetics in Uokigical^siemria.tiiB Arct^ns^ 6e damer^^oLtcmars: 



tropbte levels* 



^ ] ■ : w 



;•» .' 



!•• • :i :-:^ ^M-u'M^l 



flower UttJtndes - eg. tfylidiechcariboa yet«as yeigptBtfoa-dpeg g 

 and lower 48 l o sp e c t l vdLy. ;. ^1 



tlan at lower kttitiides - t.g. mnJkiiasriaaSboa yetsos yeigptwtf oa-dbeg iy»tep» "'^^^i^Ofc-^ 



= : ■ ■ 1 ■ . .- ■ - i ■ 



^^ 1 ■ ■ - ! ■ - _^ ■ :• ■• 



■Tiflpfiiy ci^^"y H'^^QCO* TTTFf^^TtmK^^**ff OT-"^ frX^^*^tnltf ^^ ^ Ay^^f'CiP^y ^iljf&l ^^^ ^ ftFt-"^ ' 

 .: .._ • .5 ..•■..■■ ■ . ■ ^ '_ ..: j j ■ . .■ ■ _•;•.;• ■;■ •.■- .■.:[ - 



oar cmxent ksowledgB dut is based on stnaea in man leapmiBe atytieim •..;. V°. ■\r^. >- . 



MONiTaRiNa H. ■ • ■ J • . • .■■••.■ • -^^^rV -■•■:<■.• 



• 5 .•••■•? ■ • . ; j ■ ■• :t •■. ' .-. '■} '■ ■'■•••.■.• ■.■.' 



/!Wedontlmowrexa dly^wu ii>c Ii moadtodiigi>q^ 



addiess Ae innnertfiie conoectf. Namdy, are thiy>> J mif ,rai ) t yniff^yi tUriy i«H nMBA-iTnrK(<wt .» 



in die AJadsn e nviiunia eat andjmaeeinpaijtmt ere 0|ey in aecniBatsitint inahSfcfiKii^'^r ^v- -;, 



rignifinenfly incteaae«KEirioa.^«poenre? tlj^oamaOIymeaiia ?aieiliq^,itt onfnirti%1y^]jie|i^^^ ;.. 



fbod items. MnniTnring is alwh w witi alto detect mid awm ^ rigtffit^imcg ^^of • 



' ;• ?■ , '' '-, ■ ' '. '■ ', \' "--i "!■■ '■'^' ; ■■-■^r-'^- "-r ~rx- 



dutmaymdiAJadcalntliefittoie. ■ .M ' -^ -^1 • .;■- ^ -.A'v ;A,>^^ 



i - ■ : ■■-:•; ■' ■ ^ ! '■ ■ ;! • ■'/ ■ .; . ■ ?'.^-'-' '■ 



UAF It in a food poflt£oa to doi^ tne ottaaakoiiingmmdLuio ofEar "wbol&bbi^-tliv . u: 



_^ ■ ■ ■ ■ ■, ■ j ■"•. •■•; ; f ; ■: : -■ 1 r- ■■ I ii : \ :':y^''W-'^^'^ 



c cH i ntiin" of lanuaua aa> i ) tt e a|Cln aog<ii in ,ifdiieDBed( 

 ^Wlfc ihe e xnepd oo of ifaizaiea ^ bedtfatpe-j. 



■2 ■ • ^. . ..•■<.. 1,1' .■■■-.•■. .:• . .• '' 



been adjected rtnTBigiimcfa^flhe last 2D4'iyea!t IJtafriiknDyn^o£ihe po « qHf > i >ai l i Miyt- --^^ 



I '' '.; • ■ " 'V ^^Vi. ':■■'' -l -..-.■.■:■ :^:^'^-''-':V^ "• 



widiin Acetic e c o syaieui s fiardie Mninrta»i Tf fXuiitfK^iif ^ iiif^jfaiiwL^^y^rfaiiy ;^^*!^ . . ..^, 



• 'I ■ ■ ■ ' ^ ^ ■ "■■■ ^ '•. V- '"""'. :■' -■ ■ ■ ■^-■■:.^ ■•■':;^-V 

 <ynnfCTii >gJdnedc«relatBdiD Mae peih w iy Jat been i de utlfi e d i. SddiitD&smnBr ■ 



^ T' ■ '\ ■' '"''■'' Ii" ^^' :■; .-.^^.T--:' ••;.-;? 



ecologiit working in a c oo ii llna i Hl fliriiioabgdLwidrffl'dgia^aysieojs ■ r. >.',v A r 



• .•.1- ■.'■.■'.-' ' . •■< I ■ ■■ -: "i ''■•:■''■■ :"•■';>■ -r^'/r 



IS MORE SOEKnFICRESEARCS NEEDED? . j ; ,. ^ v^-ti 



