TheInternationalConferencesonEphemeroptera(Mayflies)andSymposiaonPlecoptera
(Stoneflies)areheldeverythreeyears,indifferentpartsoftheworld.
Theseeventsallow
specialistsfromdifferentcountriestointeractandpresenttheresultsoftheirlatest
investigations.
TheIXInternationalConferenceonEphemeropteraandXillInternationalSymposiumon
Plecoptera,wereheldAugust16-21,1998,andAugust20-23,1998,respectively,inTaffdel
Valle,Tucuman,Argentina,withajointsymposiumonAugust20,1998.
Theseeventswerehos-
tedbythe"InstitutoSuperiordeEntomologfa"FacultaddeCienciasNaturales,fromtheNational
UniversityofTucuman,andattendedbyapproximately80specialistsfrom25countries.
Atpresent,whenthebiodiversitycrisisandthepressuresonfresh-waterenvironmentsand
theirinhabitantsareworsethaneverbefore,theinformation,discussionsandguidelinescoming
outofeventsofthiskindarebecomingmoreandmoreimportant.
The54papersincludedinthisvolumeareamongthosepresentedduringthemeetings,
andacceptedafterpeerreviewbyinternationalspecialists.
Thepapersaregroupedinfivelooselydefinedsections(exceptthefirstthatcorresponds
toapaneldiscussion),althoughseveralofthepaperscouldexceedthesubjectboundaries
wheretheyarelocated.
Iwouldliketothankthemanyindividualsandinstitutionsthathelpedwithboththis
bookandtheorganizationoftheevents,namely:
Themembersoftheorganizingcommittee:H. R. Fernandez,M. G. Cuezzo, F.
Romero, C. Molineriand C. Nieto. AlsocollaboratingwereM. Ceraolo,1.
Chocobar,M. Guzmande Tome,S. Moro,M. Orce,V.
Manzoandmanyvolunteersandstudentstoonumeroustodetail here.
Withouttheiruntiringefforts,theeventssimplywouldnothavebeenpossible.
Thefollowingpersonsactedasmanuscriptreviewers:J. Alba-Tercedor,J.
V. Arnekleiv, R. Baumann,J. E. Brittain, 1. C. Campbell,J. M.
Elouard,J. F. Flannagan,R. W. Flowers, C. Froehlich,E. Gaino,M. T.
Gillies,P. Goloboff,P. M. Grant,M. D. Hubbard, Y. Isobe,J.
Jackson,N. N. Kapoor,P. Landolt, W. P. McCafferty, 1. McLellan,R.
Nelson, W. L. Peters,G. Pritchard,M. Sartori,!. Sivec,1. Stanford,
K. W. Stewart,D. Studemann,B. Stark,P. Suter,B. Sweeney,S.
Szczytko,andP. Zwick.
Theseinstitutionsprovidedtheirinstitutionaland/oreconomicsupport:Facultadde
CienciasNaturaleseInstitutoMiguelLillo,UniversidadNacionaldeTucuman;ConsejoNa-
cionaldeInvestigacionesCientificasyTecnicas(CONICET);ConsejodeInvestigaciones,
UniversidadNacionaldeTucuman(CIUNT);Fundaci6nAntorchas,Fundaci6nMiguelLillo;
Direcci6ndeTurismo,MunicipalidaddeTaffdelValle. vii viii Preface
ThePermanentCommitteeonEphemeropteraConferencesprovidedpartialfinancial
supportforfellowshipsforstudentsfromtheCzechRepublic,ChinaandSlovenia;andthe
NorthAmericanBenthologicalSocietyforstudentsfromBoliviaandVenezuela.
Thecompletionofthisbookwouldnothavebeenpossiblewithouttheinvaluableeffort
ofGustavoSanchez,whomadethedigitalworkoftheoriginalsandthecoverdesign,
C. Molineriand C.
Nietowhopatientlyreviewedthefinalcopies,andvaluableadvicefrom
MaryAnnMcCarraandRobertWheeler. ThecoverillustrationsweredonebyS.
RoigJu- nen!(Ephemeroptera)and A. Dupuy(Plecoptera).
EduardoDominguez ConvenorandEditor August,2000 CONTENTS STATUS OF
THE KNOWLEDGE OF EPHEMEROPTERA IN THE WORLD
IntroductiontothePanelDiscussion . 1. Alba-Tercedor
StatusoftheKnowledgeofEphemeropterainNortheastAsiaandGuidelinesfor
FutureResearch...3 y. 1. Bae
TheCurrentStatusofEphemeropteraBiologyinAustralia...7 I. C.
Campbell KnowledgeoftheAfrican-MalagasyMayflies ...13 J. M. Elouard
TheGentleQuest: 200YearsinSearchofNorthAmericanMayflies...21 W. P.
McCafferty
TheStatusoftheTaxonomyoftheMayfly(Ephemeroptera)FaunaofSouthAmerica.
. 37 M. L. Pescador,M. D. Hubbard,andM. delC. Zuniga
TheEphemeropteraofNewZealandandNewCaledonia...43 W. L. Peters
CurrentKnowledgeofMayflyResearchinEurope(Ephemeroptera)...47 M.
Sartori
StatusoftheSystematicKnowledgeandPrioritiesinEphemeropteraStudies:
theOrientalRegion '...53 T. Soldan ECOLOGYANDBEHA~OUR
LifeCycleandAnnualProductionof Caenissp(Ephemeroptera,Caenidae)
inLakeEscondido(Bariloche,Argentina)...67 D. A. AnonSuarezandR. 1.
Albarino ix x Contents
EffectsofRotenoneTreatmentonMayflyDriftandStandingStocks
inTwoNorwegianRivers...77 1. V. Arnekleiv,D. Dolmen,and L.
Rj(jnning
LongitudinalDistributionoftheMayfly(Ephemeroptera)Communities
attheChocancharavaRiverBasin(Cordoba,Argentina)...89 M. delC.
Corigliano,C. M. Gualdoni, A. M. Oberto,andG. B. Raffaini
EmergenceofEphemeropterafromtheAssiniboineRiver,Canada...97 1. F.
Flannagan,1. Alba-Tercedor,R. G. Lowen,andD. G. Cobb MayfliesasFood
107 P. M. Grant
SeasonalVariationofEphemeropterainFourStreamsofGuatopoNational
Park,Venezuela...:...125 V. Maldonado,B. Perez,andC. Cressa
AbundanceandAltitudinalDistributionofEphemeropterainan
Andean-PatagoneanRiverSystem(Argentina)...
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