Pushing boundaries of range and resilience: a review of range-extension by a barrens-forming sea urchin
Pushingboundariesofrangeandresilience:areviewofrange-‐extensionbyabarrens-‐formingseaurchinScottD.Ling,InstituteforMarine&AntarcticStudies,UniversityofTasmania,Hobart.Tas.7001,Australia;email:Scott.Ling@utas.edu.auThebarrens-‐formingseaurchinCentrostephanusrodgersii(Diadematidae)hasundergonerece...
Main Author: | |
---|---|
Format: | Text |
Language: | English |
Published: |
Universidad de La Laguna
2012
|
Subjects: | |
Online Access: | http://ecite.utas.edu.au/80090 |
id |
ftunivtasecite:oai:ecite.utas.edu.au:80090 |
---|---|
record_format |
openpolar |
spelling |
ftunivtasecite:oai:ecite.utas.edu.au:80090 2023-05-15T14:02:30+02:00 Pushing boundaries of range and resilience: a review of range-extension by a barrens-forming sea urchin Ling, SD 2012 http://ecite.utas.edu.au/80090 en eng Universidad de La Laguna Ling, SD, Pushing boundaries of range and resilience: a review of range-extension by a barrens-forming sea urchin, Workshop: Responses of key sea urchin populations to climate change processes: From Larvae to Ecosystems, 14-18 November 2012, Tenerife, Canary Islands, Spain, pp. 10. (2012) [Plenary Presentation] http://ecite.utas.edu.au/80090 Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Plenary Presentation NonPeerReviewed 2012 ftunivtasecite 2019-12-13T21:45:28Z Pushingboundariesofrangeandresilience:areviewofrange-‐extensionbyabarrens-‐formingseaurchinScottD.Ling,InstituteforMarine&AntarcticStudies,UniversityofTasmania,Hobart.Tas.7001,Australia;email:Scott.Ling@utas.edu.auThebarrens-‐formingseaurchinCentrostephanusrodgersii(Diadematidae)hasundergonerecentpolewardrange-‐extensiontotheTasmaniancoastline(SEAustralia).Bycompilingfieldobservations(includingSSTspanning>60yrs),broad-‐scalesurveysandmanipulativeexperimentsconductedduringthepastdecade,thisreviewdetailsknowledgeontheresponseofthiskeyseaurchinspeciestoclimatechangeandduallyexploresmultipleprocessesinfluencingtheultimateecologicalconsequenceofcatastrophic-‐shiftfromproductivekelpbedstourchinbarrens,asnowobservedwithintherange-‐extensionregion.Asaresultofchangingregionalclimate,easternTasmaniahasbecomeincreasinglysuitableforCentrostephanuslarvaldevelopmentwiththetimingoftheseaurchinsarrival,age-‐structureandspatialdistributionacrosstheextension-‐regionconsistentwithpatternsinwarmingseatemperaturesandcurrent-‐drivendispersalpotential.Furthermore,consistencyintemperaturedependencyoflarvaldevelopmentpluslackofgeneticdifferentiationofthespeciesacrossitsentirerange,confirmthecriticalroleofchangingclimateindrivingtherange-‐extension.Continuedwarmingpredictedforthisregionwillfavourincreasedlarvalsurvival,promotingongoingpopulationexpansionandultimatelyincreasedlikelihoodofpopulationsreachingsufficientdensitytoaffectwidespreadovergrazing.Assuch,knowledgeofpatternsandmechanismspromotingovergrazingarealsoreviewedforthepurposeofidentifyingkelpbedsatgreatestriskgivenclimatetrends,reefsubstratumtypesandpredatorabundance(chieflyspinylobsters)asinfluencedbyintensefishingpressure.Finally,thisreviewshowshowmanagementofnon-‐climaticlocalscalestressorscanbeusedtoincreaseresilienceofkelpbedsagainstovergrazinggivenlarge-‐scaleclimate-‐drivenincreasesinkeyseaurchinpopulations. Text Antarc* eCite UTAS (University of Tasmania) |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) |
spellingShingle |
Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Ling, SD Pushing boundaries of range and resilience: a review of range-extension by a barrens-forming sea urchin |
topic_facet |
Biological Sciences Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) |
description |
Pushingboundariesofrangeandresilience:areviewofrange-‐extensionbyabarrens-‐formingseaurchinScottD.Ling,InstituteforMarine&AntarcticStudies,UniversityofTasmania,Hobart.Tas.7001,Australia;email:Scott.Ling@utas.edu.auThebarrens-‐formingseaurchinCentrostephanusrodgersii(Diadematidae)hasundergonerecentpolewardrange-‐extensiontotheTasmaniancoastline(SEAustralia).Bycompilingfieldobservations(includingSSTspanning>60yrs),broad-‐scalesurveysandmanipulativeexperimentsconductedduringthepastdecade,thisreviewdetailsknowledgeontheresponseofthiskeyseaurchinspeciestoclimatechangeandduallyexploresmultipleprocessesinfluencingtheultimateecologicalconsequenceofcatastrophic-‐shiftfromproductivekelpbedstourchinbarrens,asnowobservedwithintherange-‐extensionregion.Asaresultofchangingregionalclimate,easternTasmaniahasbecomeincreasinglysuitableforCentrostephanuslarvaldevelopmentwiththetimingoftheseaurchinsarrival,age-‐structureandspatialdistributionacrosstheextension-‐regionconsistentwithpatternsinwarmingseatemperaturesandcurrent-‐drivendispersalpotential.Furthermore,consistencyintemperaturedependencyoflarvaldevelopmentpluslackofgeneticdifferentiationofthespeciesacrossitsentirerange,confirmthecriticalroleofchangingclimateindrivingtherange-‐extension.Continuedwarmingpredictedforthisregionwillfavourincreasedlarvalsurvival,promotingongoingpopulationexpansionandultimatelyincreasedlikelihoodofpopulationsreachingsufficientdensitytoaffectwidespreadovergrazing.Assuch,knowledgeofpatternsandmechanismspromotingovergrazingarealsoreviewedforthepurposeofidentifyingkelpbedsatgreatestriskgivenclimatetrends,reefsubstratumtypesandpredatorabundance(chieflyspinylobsters)asinfluencedbyintensefishingpressure.Finally,thisreviewshowshowmanagementofnon-‐climaticlocalscalestressorscanbeusedtoincreaseresilienceofkelpbedsagainstovergrazinggivenlarge-‐scaleclimate-‐drivenincreasesinkeyseaurchinpopulations. |
format |
Text |
author |
Ling, SD |
author_facet |
Ling, SD |
author_sort |
Ling, SD |
title |
Pushing boundaries of range and resilience: a review of range-extension by a barrens-forming sea urchin |
title_short |
Pushing boundaries of range and resilience: a review of range-extension by a barrens-forming sea urchin |
title_full |
Pushing boundaries of range and resilience: a review of range-extension by a barrens-forming sea urchin |
title_fullStr |
Pushing boundaries of range and resilience: a review of range-extension by a barrens-forming sea urchin |
title_full_unstemmed |
Pushing boundaries of range and resilience: a review of range-extension by a barrens-forming sea urchin |
title_sort |
pushing boundaries of range and resilience: a review of range-extension by a barrens-forming sea urchin |
publisher |
Universidad de La Laguna |
publishDate |
2012 |
url |
http://ecite.utas.edu.au/80090 |
genre |
Antarc* |
genre_facet |
Antarc* |
op_relation |
Ling, SD, Pushing boundaries of range and resilience: a review of range-extension by a barrens-forming sea urchin, Workshop: Responses of key sea urchin populations to climate change processes: From Larvae to Ecosystems, 14-18 November 2012, Tenerife, Canary Islands, Spain, pp. 10. (2012) [Plenary Presentation] http://ecite.utas.edu.au/80090 |
_version_ |
1766272806473957376 |