{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,20]],"date-time":"2026-10-20T06:39:19Z","timestamp":1792478359638,"version":"4.5.0"},"reference-count":53,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2026,10,19]],"date-time":"2026-10-19T00:00:00Z","timestamp":1792368000000},"content-version":"vor","delay-in-days":18,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T00:00:00Z","timestamp":1790812800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100000923","name":"Australian Research Council","doi-asserted-by":"publisher","award":["DP230101932"],"award-info":[{"award-number":["DP230101932"]}],"id":[{"id":"10.13039\/501100000923","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Global Change Biology"],"published-print":{"date-parts":[[2026,10]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Climate change is widely expected to push many taxa beyond their biological limits, yet some populations persist in environments that routinely experience climatic extremes. This raises a fundamental question: does their thermal tolerance reflect species\u2010level thermal generalism (an evolved capacity to maintain performance across a broad thermal range) or population\u2010specific acclimation to local conditions (phenotypic plasticity)? Distinguishing between these alternatives is key for predicting whether tolerance to climatic extremes will generalise across species distributions or remain restricted to heat\u2010tolerant populations. To test these competing hypotheses, we quantified physiological performance (at cellular and organismal levels) in three economically important estuarine fish (\n                    <jats:styled-content style=\"fixed-case\">\n                      <jats:italic>Acanthopagrus australis<\/jats:italic>\n                    <\/jats:styled-content>\n                    ,\n                    <jats:styled-content style=\"fixed-case\">\n                      <jats:italic>Sillago ciliata<\/jats:italic>\n                    <\/jats:styled-content>\n                    and\n                    <jats:styled-content style=\"fixed-case\">\n                      <jats:italic>Rhabdosargus sarba<\/jats:italic>\n                    <\/jats:styled-content>\n                    ) collected from 20 sites across 15 estuaries along a ~1000\u2010km latitudinal gradient spanning their core and poleward range edges. Sites differed in thermal variability, including some that intermittently exceeded the severest end\u2010of\u2010century climate projections. We then experimentally exposed two of the fish species from low and high thermal variability sites to moderate (+2\u00b0C, 14\u2009days) or extreme (+4\u00b0C, 7\u2009days) simulated marine heatwave events, assessing 12 physiological and behavioural proxies. All three species collected in\u00a0situ maintained comparable physiological performance across sites of contrasting thermal variability. Both experimental species, each collected from a single high\u2010 and low\u2010variability site, tolerated heatwave conditions regardless of thermal history or heatwave intensity, supporting species\u2010level thermal generalism rather than population\u2010specific acclimation. In the absence of heatwave conditions,\n                    <jats:styled-content style=\"fixed-case\">\n                      <jats:italic>S.\u2009ciliata<\/jats:italic>\n                    <\/jats:styled-content>\n                    from high\u2010variability sites also showed steeper allometric scaling and faster growth at 26 versus 24\u00b0C experimental control temperatures, suggesting this species may benefit from the warmer baseline temperatures projected under gradual climate change. Combined, our findings support thermal generalism as the primary driver of tolerance in estuarine fishes to climatic extremes, with important implications for the fisheries they support under climate change.\n                  <\/jats:p>","DOI":"10.1111\/gcb.71143","type":"journal-article","created":{"date-parts":[[2026,10,20]],"date-time":"2026-10-20T05:51:31Z","timestamp":1792475491000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Thermal Generalism Shapes Tolerance to Extreme Heatwaves in Estuarine Fishes"],"prefix":"10.1111","volume":"32","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2255-9652","authenticated-orcid":false,"given":"Angus","family":"Mitchell","sequence":"first","affiliation":[{"name":"Southern Seas Ecology Laboratories, School of Biological Sciences Adelaide University  Adelaide South Australia Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8256-1412","authenticated-orcid":false,"given":"David J.","family":"Booth","sequence":"additional","affiliation":[{"name":"School of Life Sciences University of Technology Sydney  Ultimo New South Wales Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5350-6852","authenticated-orcid":false,"given":"Sean D.","family":"Connell","sequence":"additional","affiliation":[{"name":"Southern Seas Ecology Laboratories, School of Biological Sciences Adelaide University  Adelaide South Australia Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9950-465X","authenticated-orcid":false,"given":"Timothy","family":"Ravasi","sequence":"additional","affiliation":[{"name":"Marine Climate Change Unit Okinawa Institute of Science and Technology (OIST)  Onna\u2010son Okinawa Japan"},{"name":"College of Science and Engineering James Cook University  Townsville Queensland Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4499-3940","authenticated-orcid":false,"given":"Ivan","family":"Nagelkerken","sequence":"additional","affiliation":[{"name":"Southern Seas Ecology Laboratories, School of Biological Sciences Adelaide University  Adelaide South Australia Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,10,19]]},"reference":[{"key":"e_1_2_12_2_1","doi-asserted-by":"publisher","DOI":"10.1098\/rspb.2000.1065"},{"key":"e_1_2_12_3_1","unstructured":"Barto\u0144 K.2025.\u201cMuMIn: Multi\u2010Model Inference. 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