Climate Change Data Portal
| Combining individual-based models and advection models to assess climate change impact on Antarctic krill | |
| 项目编号 | http://gepris.dfg.de/gepris/projekt/411096565 |
| Professorin Dr. UtaBerger | |
| 项目主持机构 | Technische Universität Dresden |
| 开始日期 | 2018 |
| 英文摘要 | TheSouthernOceanisparticularlysusceptibletoclimatewarmingandcomprisessomeofthemostrapidlywarmingregionsworldwide.Thishasresultedinanincreaseinseasurfacetemperaturesof0.9ºCinsummeraroundtheislandofSouthGeorgiasince1925and1ºCatthewesternAntarcticPeninsulafrom1951to1998.Furthermore,globalwarmingaffectstheextensionofseaiceandthetimingofseaiceformation.TheseenvironmentalchangestogetherwithoceanacidificationwillimpactthepopulationdynamicsofAntarctickrill(Euphausiasuperba)inanunknownway.SincekrillisbothanecologicallykeyspecieswithitscentralroleintheAntarcticfoodwebandofhigheconomicvalue,morereliablecircumpolarprojectionsofthetrendsofAntarctickrillpopulationsinresponsetoclimatechangeareurgentlyneededforbettermanagementandconservationmeasures.Inprinciplepopulationmodelscanprovidesuchinsights,butdifferingthreatsto,andbehaviourof,larvalkrillcomparedwithadultkrillmeansthatmechanisticmodelsareneededinsteadofcorrelativeempiricalmodels.Itwillbecrucialtoconsiderthebehaviourandindividualvariabilityofkrillinthemodeltoassesstheadaptationpotentialofkrilltoglobalchange.Therefore,individual-based,process-basedmodelswillbedesignedandimplementedincludingphysiologicalsubmodelsfordifferentlifestagesofkrill.Modellingthewholelifecycleofkrillisparticularlyimportantsincekrillreversesitsdailyverticalmigrationbehaviourasitgetsolderandwhileadultkrillisabletoreduceitsmetabolicactivityinwinterlarvalkrillhastoremainactivethroughouttheyear.Apartfromphysiologicalandbehaviouralaspectsitiscrucialtounderstandtowhichenvironmentalconditionskrillisexposedto.Especiallyseaicecoverissupposedtoplayacrucialrolesinceitprovideskrilllarvaeshelterfrompredatorsandcurrents,butisalsoalowfoodenvironmentwhereresourcesarescarceandpatchilydistributed.Tomeaningfullyinvestigatetheimpactofchangingspatialandtemporalseaicedynamicsandfoodavailabilityonthekrillpopulationdynamicstheindividualbasedmodelneedstobecoupledwithadvectionmodels.Thisisespeciallyimportantaskrilllarvaedonotactivelyswimandtheirinteractionwithseaicecanhaveasignificantimpactontheirtransportintermsofdestinationandtimingofarrival.Thecouplingofadvectionmodelsandindividual-basedmodelsishighlyinnovativerequiringappropriatehandlingofthedifferentspatialandtemporalresolutionsrelevantforthetwomodellingcomponents,namelythekrillanditstransportbywatercurrentsandseaicedrift.Theproposedprojectwillthushelptointegrateexistingknowledge,allowingforanimprovedprojectionofthelikelyimpactofenvironmentalchangeonAntarctickrillatcircumpolarscales. |
| 学科分类 | 0603 - 生态学;06 - 生物科学 |
| 资助机构 | DE-DFG |
| 项目类型 | Research Grants |
| 国家 | DE |
| 语种 | 英语 |
| 文献类型 | 项目 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/69375 |
| 推荐引用方式 GB/T 7714 | Professorin Dr. UtaBerger.Combining individual-based models and advection models to assess climate change impact on Antarctic krill.2018. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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