轉(zhuǎn)Bt棉對蜘蛛生長發(fā)育及棉田蜘蛛群落結(jié)構(gòu)與動態(tài)的影響.pdf

1、Master7SThesisofHubeiUniversJtyY935097轉(zhuǎn)Bt棉對蜘蛛生長發(fā)育及棉田蜘蛛群落結(jié)構(gòu)與動態(tài)的影響TheinfluenceofBtcottononthespiderdevelopmentandthespidercommunityinthefields專業(yè)：生態(tài)學(xué)指導(dǎo)老師：陳建教授研究生：劉杰湖北大學(xué)生命科學(xué)學(xué)院二oo六年五月于武昌TheinfluenceofBtcottononthespiderdevelo

2、pmentandthespidercommunityinthefieldsAbstract：Thisstudycontainedtwoparts：alaboratoryexperimentandafieldinvestigationlastingfortwoyears(i)Thelaboratorystudywasperformedtoinvestigatewhether掣砌ofHylyphantesgraminicolaandCole

3、osomaoctomaculatumaswellaspredationbehaviorofHgarminicolawereaffectedbyBtcottonLarvaeofHelicoverpaarmigera，preysforthespiders，werefedonBttransgeniccottonhybrid(Zhongrnian29)orconventionalcotton(Xiangza3)respectivelyThepr

4、edationfunctionalresponsesbyadult且graminicolawhichsurvivedinfeedingexperimenttolarvaeof衄armigerawhichwerefedwithBtcottonorconventionalcottonwasalsocarriedoutunderlaboratoryconditions(ii)Thefieldinvestigationisalsocarried

5、outtodetectthedifferenceofspidercommunitiesbetweenBttransgeniccottonfieldandconventionalcottonfieldThefieldexperimentwascarriedoutha2004and2005bypitfalltrapsThe刪nresultswereshowed／isfollows：1，Nosignificantdifference協(xié)thed

6、evelopmentpaRemandadultbodyweight(p005)wasdetectedbetweenHgraminicolanymphsrearedonBtcottonfedHarmigeralarvaeandthoseonconventionalcottonfedonesSameconclusionwasdrawnfromcomparingthedevelopmentandadultbodyweightofCoctoma

7、culatumnymphsraisedonBtcottonfed爿=armigeralarvaewiththoseraisedonconventionalcottonfedones(pO05)Predationbehaviorofadult丘graminicolawasunaffectedwhentheyraisedonBtcottonfedIZarmigeraQ)O05)2，Lycosidae(7661％ofallspiders)do

8、minatedthespidercommunities，followedbyGnaphosidae(1275％)andTitanoecidae(37l％)ThemostdominantspeciesarePardosalaura，GnaphosakompirensisandNursciaalbofasciatarespectively3，NosignificantdifferenceintheSpiderabundance①005)Wa