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dc.contributor.authorJupe, Len
dc.contributor.authorBilton, Den
dc.contributor.authorKnights, Aen
dc.descriptionNo embargo requireden

Future climate change is leading to the redistribution of life on Earth as species struggle to cope with rising temperatures. Local adaptation allows species to become locally optimised and persist despite environmental selection, but the extent to which this occurs in nature may be limited by dispersal and gene flow. Congeneric marine gastropod species (Littorina littorea and L. saxatilis) with markedly different developmental modes were collected from across a latitudinal thermal gradient to explore the prevalence of local adaptation to temperature. The acute response of metabolic rate (using oxygen consumption as a proxy) to up-ramping and down-ramping temperature regimes between 6-36ºC was quantified for five populations of each species. The highly dispersive L. littorea exhibited minimal evidence of local adaptation to the thermal gradient, with no change in thermal optimum (Topt) or thermal breadth (Tbr) and a decline in maximal performance (μmax) with increasing latitude. In contrast, the direct developing L. saxatilis displayed evidence of local optimisation, although these varied idiosyncratically with latitude, suggesting a suite of selective pressures may be involved in shaping thermal physiology in this relatively sedentary species. Our results show that the biogeography of thermal traits can differ significantly between related species, and show that inter-population differences in thermal performance do not necessarily follow simple patterns which may be predicted based on latitudinal changes in environmental temperatures. Further research is clearly required to better understand the mechanisms that can lead to the emergence of local adaptation in marine systems and allow improved predictions of species redistribution in response to climate change.

dc.publisherEcological Society of Americaen
dc.subjectthermal toleranceen
dc.subjectmetabolic rateen
dc.subjectgene flowen
dc.subjectdivergent natural selectionen
dc.subjectadaptive differentiationen
dc.subjectmarine invertebrateen
dc.subjectspecies distributionen
dc.subjectclimate changeen
dc.titleDo differences in developmental mode shape the potential for local adaptation?en
dc.typeJournal Article
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Biological and Marine Sciences
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences
plymouth.organisational-group/Plymouth/Research Groups
plymouth.organisational-group/Plymouth/Research Groups/Marine Institute
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dc.rights.embargoperiodNot knownen
rioxxterms.typeJournal Article/Reviewen

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