简介：为Protoperidinium种类的分类和鉴定在它的分类学习期间是最困难的工作。在这研究，Protoperidinium的分类地位被跟踪它的分类历史澄清，23种类在中国的海岸上属于类Protoperidiniumpreliminarily被识别，并且词法描述和板模式为每种被给。类似的种类的关键差别也在这研究被讨论，我们相信那P。oceanicum和P。murry，P。tumidum和P。fatulipes，P。水珠和P。majus是分开的种类；P。diabolum应该被当作有效名字而不是报导名字Peridiniumglobosum或Peridiniumlongipes；在P之间的分类关系。punctulatum和P。subinerme要求进一步的学习。

简介：Dominantspeciesofzooplanktoncommunityvarywithlatitude.ThoughChinapossessesavastcoastalareainnorthwesternPacific,studiesonthelatitudinaldominantspeciesgradientarerare.WecollectedzooplanktonsamplesfromHaizhouBay(34.56?–35.19?N,119.51?–120.30?E),YueqingBay(28.14?–28.38?N,121.10?–121.21?E)andDongshanBay(23.65?–23.90?N,117.45?–117.60?E)inMay2012andMay2013topreliminarilycharacterizethelatitudinaldominantspeciesdistribution.Allthesampleswerecollectedverticallyusinga0.505mmmeshplanktonnetwith0.8minmouthdiameterfrombottomtosurface.Calanussinicus,Aidanosagittacrassa,Labidoceraeuchaeta,Zonosagittanagae,AcartiapacificaandParacalanusparvuswerefoundtobedominant.C.sinicuswasthemostdominantspeciesandtheuniqueoneoccurredinallthreebays.Withlatitudedecreasing,boththeabundanceandproportionofC.sinicusdeclinedsharply.Clusteranalysisshowedthatthe6dominantspeciescouldbedividedinto3groups,basedontheiroccurrencesinthethreebays.OurresultssuggestedthatthedistributionofdominantspeciesalongthecoastofChinahasasignificantlatitudinalgradient.C.sinicuswhichwidelydistributesinthecoastalwaterofthenorthwesternPacificcanwelladapttothetemperatureatdifferentlatitudes.ThehighabundanceinHaizhouBayindicatedthatC.sinicuswasanexemplarywarm-temperatespecies,andmorecommonlyoccursinthenorthofChinaseas.Theecologicalcharacteristicsofdominantspecieschangefromwarm-temperatetypeinhigh-latitudinalbaystowarmwatertypeinlow-latitudinalbays.

简介：叶的地理模式的全面信息中国森林里的词法特点仍然是少见的。探索叶特点的空间模式，我们调查了叶区域(LA)，叶厚度(副)，特定的叶区域(SLA)，并且长叶越过来自沿着在7月和2013年8月之间的东方中国(NSTEC)的纵贯的横断的九个典型森林的847种类的干燥的事内容(LDMC)，并且也计算了社区由决定每种的相对优势的叶特点的加权的工具(CWM)。我们的结果显示出那，为所有种类，工具(?????????吗？？

简介：ThestrongadaptabilityofBroussonetiapapyrifera(L.)Vent.tolowphosphorus(P)conditionscanbeattributedtothelargeamountofroot-exudedorganicacidsandthehighef?ciencyofPextraction.However,microelementcontentsarein?uencedbylow-Pstress,andtheireffectsonthephotosyntheticcapabilityofB.papyriferaremainunknown.Inthisstudy,weinvestigatedtheeffectsoflow-Ptreatmentonnetphotosyntheticrate(P_N);chlorophylla?uorescence(ChlF)characteristics;andFe,Mn,Cu,andZncontentsofB.papyriferaandMorusalbaL.seedlings.ResultsshowthatB.papyriferaexhibitedbetterphotosyntheticcapabilityundermoderatePde?-ciency(0.125,0.063,and0.031mmol/LPtreatments),whereasthephotosyntheticcapabilityofM.albadecreasedundermoderateandseverePde?ciency(0.016and0mmol/LPtreatments).UndermoderatePde?ciency,thedecreaseinCuandZncontentsinB.papyriferawaslowerthanthatinM.alba.UnderseverePde?ciency,aconsiderabledecreaseofphotosyntheticcapabilityinB.papyriferaandM.albawasassociatedwithlowCuandZncontents.ThePNofthetwoMoraceaespeciesexhibitedabettercorrelationwithCuandZncontentsthanwithFeorMncontent.Pde?ciencycouldnotonlydecreasecyclicphotophorylationandphotosyntheticef?ciency,butcouldalsoaffectthestabilityofthylakoidmembranestructureandelectrontransportef?ciencybyin?uencingthecontentsofCuorZn,therebyaffectingphotosynthesis.

简介：Horizontalandverticaldistributionsofδ18Oandδ13Cwereinvestigatedinshellsoffourplanktonicforaminiferalspecies,Globigerinoidesruber,Globigerinoidessacculifer,PulleniatinaobliquiloculataandNeogloboquedrinadutertrei,fromatotalof62core-topsedimentsamplesfromtheIndonesianthroughflowregion.Resultswerecomparedtomodernhydrologicconditionsinordertoexplorepotentialofproxiesinreconstructingfluvialdischargeandupperoceanwatercolumncharacteristicsinthisregion.Ourresultsshowthat,intheMakassarStrait,bothofdepletedδ18Oandδ13Cofthesefourspecieswerelinkedtofreshwaterinput.IntheBaliSea,however,depletedδ18Oandδ13Cforthesespeciesmaybeduetodifferentreasons.Depletedδ18Owasaresultoffreshwaterinputandaswellinfluencedbyalong-shorecurrentswhiledepletedδ13CwasmorelikelyduetotheJava-Sumatraupwelling.Comparisonofshellδ18OrecordsandhydrographicdataofWorldOceanAtlas2005suggeststhatG.ruberandG.sacculifercalcifywithinthemixed-layer,respectivelyat0–50mand20–75mwaterdepth,andP.obliquiloculataandN.dutertreiwithintheupperthermocline,bothat75–125mwaterdepth.N.dutertreicalcifiesatslightlydeeperwaterdepththanP.obliquiloculatadoes.Ingeneral,δ13CvaluesofbothG.ruberandG.sacculiferarelargerthanthoseofP.obliquiloculataandN.dutertreiatallsites,possiblyrelatedtodepthhabitatsofthesespeciesandverticaldistributionofnutrientsintheIndonesianthroughflowregion.