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dc.contributor.editorO'Riordan, Ruth M.
dc.contributor.editorCulloty, Sarah C.
dc.contributor.editorMcallen, Rob
dc.contributor.editorgallagher, mary catherine
dc.date.accessioned2021-03-18T16:09:31Z
dc.date.available2021-03-18T16:09:31Z
dc.date.issued2020
dc.identifier.urihttps://library.oapen.org/handle/20.500.12657/47403
dc.description.abstractAustrominius modestus, formerly Elminius modestus, is a relatively small species of four-plated acorn barnacle, which is native to the subtropical and temperate zones of Australasia. It was introduced into Europe in the 1940s, where its current range includes England, Scotland, Wales, Ireland and continental Europe from Denmark to southern Portugal, as well as two reported locations in the Mediterranean Sea. This species occurs intertidally and subtidally on a very wide range of substrata in both its native and introduced range and is found on sheltered to intermediate exposed shores, but is absent from wave-exposed shores, probably due to the relative fragility of its shell. A. modestus is known to be both euryhaline and eurythermal, but its physiology (and that of other cirripedes) has been relatively little studied in comparison with other invertebrate species. Cold temperatures and competition from arctic-boreal barnacle species currently control its northern limit. At the southern limit, desiccation stress, or some other stress(es), may be limiting the abundance of Austrominius modestus by affecting cyprids and/or metamorphs at the settlement and recruitment stages. Abundance may also be limited by factors occurring at the reproductive stage. Since Austrominius modestus is an obligatory cross-fertiliser, the need for a critical breeding density is one of the factors that appears to have slowed the speed of its spread in Europe. Although this species can commence reproducing at a very young age and under optimal conditions produces multiple broods per year, its fecundity has not yet been studied. An examination of the age of first brooding, the timing and size and number of broods per year at sites at the northern (Scotland) and southern (Portugal) limits of the current invasive range of Austrominius modestus may provide a better understanding of the factors controlling its geographic distribution, abundance and speed of spread in its non-native range. For instance, warming waters could result in increased reproduction and recruitment of Austrominius modestus, leading to a reduced density of the native Semibalanus balanoides Linnaeus which may drive Semibalanus balanoides to extinction in certain parts of its range. Further research is necessary to determine the functional role of Austrominius modestus in relation to native species in order to understand the implications that changes in abundance and distribution of A. modestus may have for ecosystems.en_US
dc.languageEnglishen_US
dc.subject.classificationbic Book Industry Communication::P Mathematics & science::PS Biology, life sciences::PSP Hydrobiology::PSPM Marine biologyen_US
dc.subject.classificationbic Book Industry Communication::R Earth sciences, geography, environment, planning::RN The environment::RNC Applied ecology::RNCB Biodiversityen_US
dc.subject.classificationbic Book Industry Communication::T Technology, engineering, agriculture::TQ Environmental science, engineering & technologyen_US
dc.subject.classificationbic Book Industry Communication::R Earth sciences, geography, environment, planning::RB Earth sciences::RBK Hydrology & the hydrosphere::RBKC Oceanography (seas)en_US
dc.subject.classificationbic Book Industry Communication::R Earth sciences, geography, environment, planning::RN The environment::RNC Applied ecologyen_US
dc.subject.classificationbic Book Industry Communication::P Mathematics & science::PS Biology, life sciencesen_US
dc.subject.classificationbic Book Industry Communication::P Mathematics & science::PS Biology, life sciences::PSV Zoology & animal sciences::PSVT Zoology: Invertebratesen_US
dc.subject.otherAustrominius modestus, Elminius modestus, four-plated acorn barnacle, subtropical Australasia, Australasian marine life, invasive species, ecosystems, invertebrate speciesen_US
dc.titleChapter 1 The Biology of Austrominius Modestus (Darwin) in its Native and Invasive Rangeen_US
dc.typechapter
oapen.relation.isPublishedBy7b3c7b10-5b1e-40b3-860e-c6dd5197f0bben_US
oapen.relation.isPartOfBook0bf278da-435e-4b61-a3b2-a86d9bb2a5aeen_US
oapen.relation.isFundedBy6514ed25-71c1-4e46-b165-a8ea5f2a0b19en_US
oapen.relation.isbn9780367367947en_US
oapen.imprintCRC Pressen_US
oapen.pages79en_US


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