stockwell aslo2017 session024_final

GEISHA:GLOBALEVALUATIONOFTHEIMPACTSOFSTORMSONFRESHWATERHABITATANDSTRUCTUREOFPHYTOPLANKTONASSEMBLAGESJasonStockwell1,Orlane Anneville2,VijayPatil3,AlexanderLooi1,Cayelan Carey4,Gaël Dur5,Bastiaan Ibelings6,SallyMacIntyre7,GiuseppeMorabito8,Peeter Nõges9,DonaldPierson10,JamesRusak11,SamiSouissi12,Dietmar Straile13,StephenThackeray14

1UniversityofVermont,2FrenchNationalInstituteforAgriculturalResearch,3USGS,4VirginiaTech,5ShizuokaUniversity,6UniversityofGeneva,7UniversityofCaliforniaSantaBarbara,8ItalianNationalResearchCouncil,9EstonianUniversityofLifeSciences,10UppsalaUniversity,11OntarioMinistryofEnvironmentandClimateChange,12UniversitéLille,13UniversityofKonstanz,14CentreforEcology&Hydrology

Photocredit:LakeChamplainBasinProgram

GEISHA– Evaluatetheimpactofstormsonlakephytoplanktoncommunitycomposition

Identifymechanismsthatleadtonewphytoplanktonassemblagesorcommunityresilience

Storms

EcosystemFunctionBiodiversity

PhysicalHabitat

Identifyassociationsbetweenabruptshiftsinphytoplanktonandextremeevents

Characterizechangesinphytoplanktoncommunityrelativetolakephysicalstates

Credit: Eric Leibensperger / SUNY-Plattsburgh

GEISHAoriginatedfromGLEONProject“Stormblitz”

GLEON15inArgentina(2013)

Reynolds1988

Long-termdatasetstotesthypotheses;high-frequencydatasetsasavailable

Project“Stormblitz”proceededslowly

GLEON16inQuébec(2014)

Needed$tomakeprogress!

GEISHAcreatesthetime,space,andresourcestoworkasacohesiveunitTask 1:DataCompilationGatherdata,QA/QC,andcombinedatasets.

Task 2:MethodDevelopmentDevelopmetricsandstatisticaltoolstoruninter-sitecomparisons

Task 3:DataAnalysesMetrics,effect-sizesandmeta-analyses.

Task 4:Interpretation,SynthesisandTheoreticalModelsofChangesinCommunitiesProposehypothesesonmechanismsdrivingobservations;developframeworksonrulesofcommunityassembly andsensitivityofecosystemstostorms.

GEISHAisaninternationalteamthatbringsdiversesetsofskillsandexperiencestothetable

Name Familyname CountryRita Adrian Germany

Orlane Anneville France

Laurence Carvalho UK

Gaël Dur Japan

Chih-hao Hsieh Taiwan

Marc Lajeunesse USA

Aleksandra Lewandowska Germany

AlexanderH. Looi USA

Vijay Patil USA

Jim Rusak Canada

Nico Salmaso Italy

François Schmitt France

Sami Souissi France

Jason Stockwell USA

Dietmar Straile Germany

StephenJ. Thackeray UK

Patrick Venail Switzerland

• Modelers

• Ecologists

• Limnologists

• Physicists

• Empiricists

• Theoreticians

GEISHAalsoincludesmanydataprovidersandadditionalparticipants(>50total)

Syuhei BanJulianaBonhembeger

Cayelan CareyChun-WeiChang

IsabelleDomaizonEvelynGaiser

JenniferGrahamJosefHejzlar

AmyHetheringtonScottHigginsBasIbelings

Kanako IshikawaStéphan Jacquet

Alo LaasMaryLofton

SallyMacIntyreShin-IchiroMatsukzaki

Guiseppe Morabito

DaviddeMottaMarquesEmilyNodinePeeter NõgesTinaNõges

Ho-DongParkDonPierson

FrancescoPomatiAnnaRigosi

Alon RimmerLarsRudstam

AngelaShambaughHilarySwain

MichaelVanniRebeccaWaskovichTannerWilliamson

YangYangHoracioZagarese

TamarZohary

Howtomanagealarge,internationalgroupinteracting atdifferent timeandspace scales?

• Whatmakescollaborationssucceedorfail?

• Whatkindsofchallengesarewelikelytoface?

• Bestpracticesforteamscience

Teamscienceconceptsusedtoengagethegroupduringfirstworkshop(Readetal.2016.Buildingtheteamforteamscience. Ecosphere7:e01291)

• Thecollaborativedecisionmakingprocess

• Dealingwithconflict• Disagreementsarepartoftheprocess(i.e.,the“groanzone”)

Datacommitmentfrom>30lakes

Low-frequency:manualsamples(phyto,verticalprofiles)every2weeks;weather;>4yrs

High-frequency:buoydataonchl a,phycocyanin,otherlimnologicalvariables;weather;coupledwithlow-frequencydata

Datachallenges:1)phytoplanktontaxonomy;2)match/mis-matchofsamplingfrequencyandtimescalesofstormimpacts

2wks 2wks 2wks 2wks 2wks

2wks Low-frequencydata

High-frequencydata

Baseline

Impact

Firstworkshopfocusedonteamprocess,ideas,short-termgoalsandresponsibility

• Emphasisonteamsciencetolaygroundworkforlong-termcollaboration(organizersheavilypreparedforthis)

• Ideageneration,refinementandexpansionofquestions/approaches

• BiologyandPhysicsworkinggroups;focusonwithinandcross-overquestions;reviewpaperplanned– whatdoesastormlookliketophytoplankton?

Workplansestablishedandresponsibilityassignedtokeepontrackbetweenworkshops• Groups/sub-groupsmeetatleastmonthly

viaSkype;specifygoalsandresponsibilities

• Datacompilation&QA/QCongoing;establishFTPserver

• 1st draftofreviewpaperdueat2nd workshop(June@USGSJohnWesleyPowellCenter,FortCollins)

• 3rd workshop(November@CESAB,Aix-en-Provence)

• GLEON19All-Hands’Meeting(lateNovember@NewPaltz,NY)

Dataneededfromunder-representedregions

Low-frequency:manualsamples(phytoplankton,verticalprofiles)every2weeks;>5yrs

High-frequency:buoydataonchl a,phycocyanin,otherlimnologicalvariables;coupledwithlow-frequencydata

GEISHAfundingisfromtwosources:CESAB(France)andUSGS(USA)

Fundingcoordinatedacrossinstitutions• 5workshops(CESAB)• 1workshop,3-yrPhD(USGS)

Co-fundingofferedadvantagestobothinstitutions

Disagreementispartoftheprocess

Kaner etal.(2007)

Pre-workshopsurveyofGEISHAparticipants

Whatisyourexpectedlevelofinvolvement?

Howimportantarethefollowingoutcomes?

Pre-workshopsurveyofGEISHAparticipants