Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/31944
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dc.contributor.authorBawa, Samuel Aen
dc.contributor.authorGregg, Peter Cen
dc.contributor.authorDel Socorro, Alice Pen
dc.contributor.authorMiller, Caraen
dc.contributor.authorAndrew, Nigel Ren
dc.date.accessioned2021-11-17T03:03:40Z-
dc.date.available2021-11-17T03:03:40Z-
dc.date.issued2021-10-
dc.identifier.citationJournal of Thermal Biology, v.101, p. 1-10en
dc.identifier.issn1879-0992en
dc.identifier.issn0306-4565en
dc.identifier.urihttps://hdl.handle.net/1959.11/31944-
dc.description.abstract<p>Understanding the impact that heat stress has on critical life stages of an organism is essential when assessing population responses to extreme events. Heat stress may occur as repeated small-scale events or as a single prolonged event, which may cause different outcomes to the organism. Here, we subjected <i>Helicoverpa punctigera</i> (Wallengren) pupae to two temperatures (44.2 <sup>◦</sup>C and 43 <sup>◦</sup>C) and two exposure treatments - a single 3-h prolonged exposure prolonged and three repeated 1-h exposure period with 24 h recovery time between bouts - to assess the biological traits of individuals. The maximum temperatures were used as they were just below the critical thermal maximum (CTmax) 47.3 <sup>◦</sup>C ± 0.3 <sup>◦</sup>C of pupae for which they could survive exposure. Adults in the prolonged and repeated heat-stressed treatments had 1.70 and 3.34 more days to emergence and 1.57 and 3.30 days extended life span compared to those kept under a constant 25 <sup>◦</sup>C temperature (control treatment). Both pre-oviposition and oviposition periods were extended in the heat-stressed groups. Fecundity in the prolonged and repeated heat-stressed females was reduced by 34.7% and 65.5% eggs in the 43 <sup>◦</sup>C treatment group and by 94.3% and 93.6% eggs in the 44.2 <sup>◦</sup>C treatment group compared to the control group. No eggs from females in either the prolonged and repeated heat-stress groups hatched. We establish that heat stress on pupae can influence the population dynamics of <i>H. punctigera</i> by reducing fecundity as well as extending the pre oviposition period, and affecting adult development. Also, as heat exposure on the parent generation resulted in no offspring production, it is critical to assess cross-generational responses to extreme heat stress.</p>en
dc.languageenen
dc.publisherElsevier Ltden
dc.relation.ispartofJournal of Thermal Biologyen
dc.titleExposure of Helicoverpa punctigera pupae to extreme temperatures for extended periods negatively impacts on adult population dynamics and reproductive outputen
dc.typeJournal Articleen
dc.identifier.doi10.1016/j.jtherbio.2021.103099en
local.contributor.firstnameSamuel Aen
local.contributor.firstnamePeter Cen
local.contributor.firstnameAlice Pen
local.contributor.firstnameCaraen
local.contributor.firstnameNigel Ren
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Science and Technologyen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailabawa@myune.edu.auen
local.profile.emailpgregg@une.edu.auen
local.profile.emailadelsoc2@une.edu.auen
local.profile.emailcmille28@une.edu.auen
local.profile.emailnandrew@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.publisher.placeUnited Kingdomen
local.identifier.runningnumber103099en
local.format.startpage1en
local.format.endpage10en
local.identifier.scopusid85119992879en
local.peerreviewedYesen
local.identifier.volume101en
local.contributor.lastnameBawaen
local.contributor.lastnameGreggen
local.contributor.lastnameDel Socorroen
local.contributor.lastnameMilleren
local.contributor.lastnameAndrewen
dc.identifier.staffune-id:abawaen
dc.identifier.staffune-id:pgreggen
dc.identifier.staffune-id:adelsoc2en
dc.identifier.staffune-id:cmille28en
dc.identifier.staffune-id:nandrewen
local.profile.orcid0000-0001-7534-3567en
local.profile.orcid0000-0002-6642-918Xen
local.profile.orcid0000-0002-2850-2307en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:1959.11/31944en
local.date.onlineversion2021-09-25-
dc.identifier.academiclevelStudenten
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleExposure of Helicoverpa punctigera pupae to extreme temperatures for extended periods negatively impacts on adult population dynamics and reproductive outputen
local.relation.fundingsourcenoteUniversity of New England (UNE) scholarshipen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorBawa, Samuel Aen
local.search.authorGregg, Peter Cen
local.search.authorDel Socorro, Alice Pen
local.search.authorMiller, Caraen
local.search.authorAndrew, Nigel Ren
local.uneassociationYesen
local.atsiresearchNoen
local.sensitive.culturalNoen
local.identifier.wosid000718396300002en
local.year.available2021en
local.year.published2021en
local.fileurl.closedpublishedhttps://rune.une.edu.au/web/retrieve/f464986d-28c1-4355-b59e-ad97196c17c1en
local.subject.for2020310913 Invertebrate biologyen
local.subject.for2020310907 Animal physiological ecologyen
local.subject.seo2020280102 Expanding knowledge in the biological sciencesen
Appears in Collections:Journal Article
School of Environmental and Rural Science
School of Science and Technology
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