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Temporal and spatial metabolic rate variation in the Antarctic springtail Gomphiocephalus hodgsoni

McGaughran, Angela; Convey, Peter; Redding, G.P.; Stevens, Mark I.

Description

Spatial and temporal environmental variation in terrestrial Antarctic ecosystems are known to impact species strongly at a local scale, but the ways in which organisms respond (e.g. physiologically, behaviourally) to such variation are poorly understood. Further, very few studies have attempted to assess inter-annual variability of such responses. Building on previous work demonstrating intra-seasonal variation in standard metabolic rate in the springtail Gomphiocephalushodgsoni, we...[Show more]

dc.contributor.authorMcGaughran, Angela
dc.contributor.authorConvey, Peter
dc.contributor.authorRedding, G.P.
dc.contributor.authorStevens, Mark I.
dc.date.accessioned2022-02-08T23:58:08Z
dc.identifier.issn0022-1910
dc.identifier.urihttp://hdl.handle.net/1885/259877
dc.description.abstractSpatial and temporal environmental variation in terrestrial Antarctic ecosystems are known to impact species strongly at a local scale, but the ways in which organisms respond (e.g. physiologically, behaviourally) to such variation are poorly understood. Further, very few studies have attempted to assess inter-annual variability of such responses. Building on previous work demonstrating intra-seasonal variation in standard metabolic rate in the springtail Gomphiocephalushodgsoni, we investigated variation in metabolic activity of G. hodgsoni across two austral summer periods at Cape Bird, Ross Island. We also examined the influence of spatial variation by comparing metabolic rates of G. hodgsoni at Cape Bird with those from two other isolated continental locations within Victoria Land (Garwood and Taylor Valleys). We found significant differences between metabolic rates across the 2 years of measurement at Cape Bird. In addition, standard metabolic rates of G. hodgsoni obtained from Garwood and Taylor Valleys were significantly higher than those at Cape Bird where habitats are comparable, but environmental characteristics differ (e.g. microclimatic temperatures are higher). We discuss potential underlying causes of these metabolic rate variation patterns, including those related to differences among individuals (e.g. physiological and genetic differences), locations (e.g. habitat quality and microclimatic regime differences) and populations (e.g. acclimation differences among G. hodgsoni populations in the form of metabolic cold adaptation (MCA)).
dc.description.sponsorshipAM was supported by a Sir Robin Irvine Doctoral Scholarship and a Top Achievers Doctoral Scholarship
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherElsevier
dc.rights© 2009 Elsevier Ltd.
dc.sourceJournal of Insect Physiology
dc.subjectCollembola
dc.subjectMetabolic cold adaptation
dc.subjectMetabolism
dc.subjectMicroclimate
dc.subjectPhysiological variability
dc.subjectPolar
dc.titleTemporal and spatial metabolic rate variation in the Antarctic springtail Gomphiocephalus hodgsoni
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume56
dc.date.issued2010
local.identifier.absfor060302 - Biogeography and Phylogeography
local.identifier.absfor060203 - Ecological Physiology
local.identifier.ariespublicationU3488905xPUB16788
local.publisher.urlhttps://www.elsevier.com/en-au
local.type.statusPublished Version
local.contributor.affiliationMcGaughran, Angela, College of Science, ANU
local.contributor.affiliationConvey, Peter, Natural Environment Research Council
local.contributor.affiliationRedding, G.P., Massey University
local.contributor.affiliationStevens, Mark I., Flinders University
local.description.embargo2099-12-31
local.bibliographicCitation.issue1
local.bibliographicCitation.startpage57
local.bibliographicCitation.lastpage64
local.identifier.doi10.1016/j.jinsphys.2009.09.003
local.identifier.absseo970106 - Expanding Knowledge in the Biological Sciences
dc.date.updated2020-12-13T07:22:08Z
local.identifier.scopusID2-s2.0-71449099053
local.identifier.thomsonID000273924500008
CollectionsANU Research Publications

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