{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T03:02:07Z","timestamp":1787022127858,"version":"build-2736575974"},"reference-count":88,"publisher":"Public Library of Science (PLoS)","issue":"7","license":[{"start":{"date-parts":[[2023,7,10]],"date-time":"2023-07-10T00:00:00Z","timestamp":1688947200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100000038","name":"Natural Sciences and Engineering Research Council of Canada","doi-asserted-by":"publisher","award":["2017-04430"],"award-info":[{"award-number":["2017-04430"]}],"id":[{"id":"10.13039\/501100000038","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000038","name":"Natural Sciences and Engineering Research Council of Canada","doi-asserted-by":"publisher","award":["PGS-D"],"award-info":[{"award-number":["PGS-D"]}],"id":[{"id":"10.13039\/501100000038","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Province of Ontario","award":["QEII-GST"],"award-info":[{"award-number":["QEII-GST"]}]},{"DOI":"10.13039\/501100004381","name":"Western University","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100004381","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100016154","name":"Birds Canada","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100016154","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100020073","name":"Delta Waterfowl","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100020073","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Ducks Unlimited"},{"name":"SUNY College of Environmental Science and Forestry"},{"name":"Long Island Wildfowl Heritage Group"},{"DOI":"10.13039\/100020095","name":"Camp Fire Conservation Fund","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100020095","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Waterfowl Research Foundation"},{"DOI":"10.13039\/501100008638","name":"Environment and Climate Change Canada","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100008638","id-type":"DOI","asserted-by":"publisher"}]},{"name":"SC Johnson"},{"name":"Bluff\u2019s Hunting Club"},{"name":"Black Duck Joint Venture"}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:p>\n                    Establishing links between breeding, stopover, and wintering sites for migratory species is important for their effective conservation and management. Isotopic assignment methods used to create these connections rely on the use of predictable, established relationships between the isotopic composition of environmental hydrogen and that of the non-exchangeable hydrogen in animal tissues, often in the form of a calibration equation relating feather (\n                    <jats:italic>\u03b4<\/jats:italic>\n                    <jats:sup>2<\/jats:sup>\n                    H\n                    <jats:sub>f<\/jats:sub>\n                    ) values derived from known-origin individuals and amount-weighted long-term precipitation (\n                    <jats:italic>\u03b4<\/jats:italic>\n                    <jats:sup>2<\/jats:sup>\n                    H\n                    <jats:sub>p<\/jats:sub>\n                    ) data. The efficacy of assigning waterfowl to moult origin using stable isotopes depends on the accuracy of these relationships and their statistical uncertainty. Most current calibrations for terrestrial species in North America are done using amount-weighted mean growing-season\n                    <jats:italic>\u03b4<\/jats:italic>\n                    <jats:sup>2<\/jats:sup>\n                    H\n                    <jats:sub>p<\/jats:sub>\n                    values, but the calibration relationship is less clear for aquatic and semi-aquatic species. Our objective was to critically evaluate current methods used to calibrate\n                    <jats:italic>\u03b4<\/jats:italic>\n                    <jats:sup>2<\/jats:sup>\n                    H\n                    <jats:sub>p<\/jats:sub>\n                    isoscapes to predicted\n                    <jats:italic>\u03b4<\/jats:italic>\n                    <jats:sup>2<\/jats:sup>\n                    H\n                    <jats:sub>f<\/jats:sub>\n                    values for waterfowl. Specifically, we evaluated the strength of the relationships between\n                    <jats:italic>\u03b4<\/jats:italic>\n                    <jats:sup>2<\/jats:sup>\n                    H\n                    <jats:sub>p<\/jats:sub>\n                    values from three commonly used isoscapes and known-origin\n                    <jats:italic>\u03b4<\/jats:italic>\n                    <jats:sup>2<\/jats:sup>\n                    H\n                    <jats:sub>f<\/jats:sub>\n                    values three published datasets and one collected as part of this study, also grouping these data into foraging guilds (dabbling vs diving ducks). We then evaluated the performance of assignments using these calibrations by applying a cross-validation procedure. It remains unclear if any of the tested\n                    <jats:italic>\u03b4<\/jats:italic>\n                    <jats:sup>2<\/jats:sup>\n                    H\n                    <jats:sub>p<\/jats:sub>\n                    isoscapes better predict surface water inputs into food webs for foraging waterfowl. We found only marginal differences in the performance of the tested known-origin datasets, where the combined foraging-guild-specific datasets showed lower assignment precision and model fit compared to data for individual species. We recommend the use of the more conservative combined foraging-guild-specific datasets to assign geographic origin for all dabbling duck species. Refining these relationships is important for improved waterfowl management and contributes to a better understanding of the limitations of assignment methods when using the isotope approach.\n                  <\/jats:p>","DOI":"10.1371\/journal.pone.0288262","type":"journal-article","created":{"date-parts":[[2023,7,10]],"date-time":"2023-07-10T13:50:41Z","timestamp":1688997041000},"page":"e0288262","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":4,"title":["Assigning harvested waterfowl to geographic origin using feather \u03b42H isoscapes: What is the best analytical approach?"],"prefix":"10.1371","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2417-8527","authenticated-orcid":true,"given":"Jackson W.","family":"Kusack","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Douglas 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Hobson","year":"2012","journal-title":"PLOS ONE"},{"key":"pone.0288262.ref024","doi-asserted-by":"crossref","first-page":"e30388","DOI":"10.1371\/journal.pone.0030388","article-title":"A triple-isotope approach to predict the breeding origins of European bats","volume":"7","author":"AG Popa-Lisseanu","year":"2012","journal-title":"PLOS ONE"},{"key":"pone.0288262.ref025","doi-asserted-by":"crossref","first-page":"822","DOI":"10.1093\/auk\/123.3.822","article-title":"A Geographic-Information-System approach to estimating the origin of migratory raptors in North America using stable hydrogen isotope ratios in feathers","volume":"123","author":"CA Lott","year":"2006","journal-title":"The Auk"},{"key":"pone.0288262.ref026","doi-asserted-by":"crossref","first-page":"477","DOI":"10.1007\/s00442-004-1671-7","article-title":"Using stable hydrogen and oxygen isotope measurements of feathers to infer geographical origins of migrating European birds","volume":"141","author":"KA Hobson","year":"2004","journal-title":"Oecologia"},{"key":"pone.0288262.ref027","doi-asserted-by":"crossref","first-page":"228","DOI":"10.1017\/S0959270916000551","article-title":"The potential breeding range of Slender-billed Curlew Numenius tenuirostris identified from stable-isotope analysis","volume":"28","author":"GM Buchanan","year":"2018","journal-title":"Bird Conservation International"},{"key":"pone.0288262.ref028","doi-asserted-by":"crossref","first-page":"766","DOI":"10.1111\/j.2041-210X.2012.00202.x","article-title":"A dragonfly (\u03b42H) isoscape for North America: a new tool for determining natal origins of migratory aquatic emergent insects","volume":"3","author":"KA Hobson","year":"2012","journal-title":"Methods in Ecology and Evolution"},{"key":"pone.0288262.ref029","doi-asserted-by":"crossref","first-page":"92","DOI":"10.2193\/0091-7648(2005)33[92:FSIIWN]2.0.CO;2","article-title":"Feather stable isotopes in western North American waterfowl: spatial patterns, 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Britzke","year":"2009","journal-title":"Journal of Mammalogy"},{"key":"pone.0288262.ref033","doi-asserted-by":"crossref","first-page":"224","DOI":"10.3389\/fevo.2019.00224","article-title":"Expanding the isotopic toolbox to track Monarch butterfly (Danaus plexippus) origins and migration: on the utility of stable oxygen isotope (\u03b418O) measurements","volume":"7","author":"KA Hobson","year":"2019","journal-title":"Frontiers in Ecology and Evolution"},{"key":"pone.0288262.ref034","doi-asserted-by":"crossref","first-page":"2793","DOI":"10.1002\/rcm.5127","article-title":"Can deuterium stable isotope values be used to assign the geographic origin of an auxiliary hoverfly in south-western France?","volume":"25","author":"A Ouin","year":"2011","journal-title":"Rapid Communications in Mass Spectrometry"},{"key":"pone.0288262.ref035","doi-asserted-by":"crossref","first-page":"505","DOI":"10.1007\/s00442-002-1153-8","article-title":"Estimating the latitudinal origins of migratory birds using hydrogen and sulfur stable isotopes in feathers: influence of marine prey base","volume":"134","author":"CA Lott","year":"2003","journal-title":"Oecologia"},{"key":"pone.0288262.ref036","doi-asserted-by":"crossref","first-page":"e0226318","DOI":"10.1371\/journal.pone.0226318","article-title":"Using oxygen and hydrogen stable isotopes to track the migratory movement of Sharp-shinned Hawks (Accipiter striatus) along Western Flyways of North America","volume":"15","author":"EA Wommack","year":"2020","journal-title":"PLOS ONE"},{"key":"pone.0288262.ref037","doi-asserted-by":"crossref","first-page":"e03765","DOI":"10.1002\/ecs2.3765","article-title":"Identifying nesting grounds for juvenile migratory birds with dual isotope: an initial test using North American raptors","volume":"12","author":"BE Crowley","year":"2021","journal-title":"Ecosphere"},{"key":"pone.0288262.ref038","doi-asserted-by":"crossref","first-page":"337","DOI":"10.1007\/s00442-004-1813-y","article-title":"Global 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Biology"},{"key":"pone.0288262.ref041","doi-asserted-by":"crossref","first-page":"266","DOI":"10.1111\/jav.00553","article-title":"Incorporating site and year-specific deuterium ratios (\u03b42H) from precipitation into geographic assignments of a migratory bird","volume":"46","author":"CM Tonra","year":"2015","journal-title":"Journal of Avian Biology"},{"key":"pone.0288262.ref042","doi-asserted-by":"crossref","first-page":"1395","DOI":"10.1139\/z06-135","article-title":"Geographic variation in the isotopic (\u03b4D, \u03b413C, \u03b415N, \u03b434S) composition of feathers and claws from Lesser Scaup and Northern Pintail: implications for studies of migratory connectivity","volume":"84","author":"RG Clark","year":"2006","journal-title":"Can J Zool"},{"key":"pone.0288262.ref043","doi-asserted-by":"crossref","first-page":"553","DOI":"10.1139\/Z09-059","article-title":"Corrigendum\u2014Geographic variation in the isotopic (\u03b4D, \u03b413C, \u03b415N, \u03b434S) composition of feathers and claws from Lesser Scaup and Northern Pintail: implications for studies of migratory connectivity","volume":"87","author":"RG Clark","year":"2009","journal-title":"Can J Zool"},{"key":"pone.0288262.ref044","doi-asserted-by":"crossref","first-page":"103","DOI":"10.1111\/j.1600-048X.2013.00232.x","article-title":"Improving provenance studies in migratory birds when using feather hydrogen stable isotopes","volume":"45","author":"JG van Dijk","year":"2014","journal-title":"Journal of Avian Biology"},{"key":"pone.0288262.ref045","doi-asserted-by":"crossref","first-page":"944","DOI":"10.1111\/ddi.13077","article-title":"Migratory connectivity of Swan Geese based on species\u2019 distribution models, feather stable isotope assignment and satellite tracking","volume":"26","author":"Q Zhu","year":"2020","journal-title":"Diversity and Distributions"},{"key":"pone.0288262.ref046","doi-asserted-by":"crossref","first-page":"618","DOI":"10.1111\/1365-2664.12723","article-title":"Combining citizen science species distribution models and stable isotopes reveals migratory connectivity in the secretive Virginia rail","volume":"54","author":"AMV Fournier","year":"2017","journal-title":"Journal of Applied Ecology"},{"key":"pone.0288262.ref047","doi-asserted-by":"crossref","first-page":"275","DOI":"10.1111\/jav.00751","article-title":"Complex migration and breeding strategies in an elusive bird species illuminated by genetic and isotopic markers","volume":"47","author":"N Seifert","year":"2016","journal-title":"Journal of Avian Biology"},{"key":"pone.0288262.ref048","doi-asserted-by":"crossref","first-page":"291","DOI":"10.1080\/10256010410001731404","article-title":"GIS-based model of stable hydrogen isotope ratios in North American growing-season precipitation for use in animal movement studies","volume":"40","author":"TD Meehan","year":"2004","journal-title":"Isotopes in Environmental and Health Studies"},{"key":"pone.0288262.ref049","doi-asserted-by":"crossref","first-page":"1299","DOI":"10.1029\/2003WR002086","article-title":"Interpolating the isotopic composition of modern meteoric precipitation","volume":"39","author":"GJ Bowen","year":"2003","journal-title":"Water Resources Research"},{"key":"pone.0288262.ref050","unstructured":"Bowen GJ. Gridded maps of the isotopic composition of meteoric waters. 2021. http:\/\/www.waterisotopes.org."},{"key":"pone.0288262.ref051","doi-asserted-by":"crossref","first-page":"919","DOI":"10.1111\/j.1472-4642.2012.00931.x","article-title":"Stable-hydrogen isotope measures of natal dispersal reflect observed population declines in a threatened migratory songbird","volume":"18","author":"CE Studds","year":"2012","journal-title":"Diversity and Distributions"},{"key":"pone.0288262.ref052","doi-asserted-by":"crossref","first-page":"e0163957","DOI":"10.1371\/journal.pone.0163957","article-title":"Within-site variation in feather stable hydrogen isotope (\u03b42Hf) values of boreal songbirds: implications for assignment to molt origin","volume":"11","author":"CJ Nordell","year":"2016","journal-title":"PLOS ONE"},{"key":"pone.0288262.ref053","doi-asserted-by":"crossref","first-page":"255","DOI":"10.1525\/cond.2009.080085","article-title":"Temporal sources of deuterium (\u03b4D) variability in waterfowl feathers across a prairie-to-boreal gradient","volume":"111","author":"DW Coulton","year":"2009","journal-title":"The Condor"},{"key":"pone.0288262.ref054","doi-asserted-by":"crossref","first-page":"663","DOI":"10.1007\/s10336-015-1319-x","article-title":"Combining stable hydrogen (\u03b42H) isotopes and geolocation to assign Scaly-sided Mergansers to moult river catchments","volume":"157","author":"D Solovyeva","year":"2016","journal-title":"Journal of Ornithology"},{"key":"pone.0288262.ref055","doi-asserted-by":"crossref","first-page":"4713","DOI":"10.5194\/hess-17-4713-2013","article-title":"Global isoscapes for \u03b418O and \u03b42H in precipitation: improved prediction using regionalized climatic regression models","volume":"17","author":"S Terzer","year":"2013","journal-title":"Hydrol Earth Syst Sci"},{"key":"pone.0288262.ref056","article-title":"Improved high-resolution global and regionalized isoscapes of \u03b418O, \u03b42H, and d-excess in precipitation","author":"S Terzer-Wassmuth","year":"2021","journal-title":"Hydrological Processes"},{"key":"pone.0288262.ref057","doi-asserted-by":"crossref","first-page":"549","DOI":"10.1890\/07-0058.1","article-title":"Improved estimates of certainty in stable\u2010isotope\u2010based methods for tracking migratory animals","volume":"18","author":"MB Wunder","year":"2008","journal-title":"Ecological Applications"},{"key":"pone.0288262.ref058","doi-asserted-by":"crossref","first-page":"996","DOI":"10.1111\/2041-210X.13426","article-title":"assignR: an R package for isotope-based geographic assignment","volume":"11","author":"C Ma","year":"2020","journal-title":"Methods in Ecology and Evolution"},{"key":"pone.0288262.ref059","doi-asserted-by":"crossref","first-page":"27","DOI":"10.1515\/ami-2020-0004","article-title":"Advancing interpretation of stable isotope assignment maps: comparing and summarizing origins of known-provenance migratory bats","volume":"7","author":"CJ Campbell","year":"2020","journal-title":"Animal Migration"},{"key":"pone.0288262.ref060","unstructured":"IAEA\/WMO. Global Network of Isotopes in Precipitation. The GNIP Database. 2023. https:\/\/nucleus.iaea.org\/wiser."},{"key":"pone.0288262.ref061","unstructured":"IAEA\/WMO. Global Network of Isotopes in Precipitation. The GNIP Database. 2015. https:\/\/nucleus.iaea.org\/wiser."},{"key":"pone.0288262.ref062","unstructured":"Gendron M, Smith A. National Harvest Survey website. Canadian Wildlife Service, Environment and Climate Change Canada, Ottawa, Ontario; 2019. https:\/\/wildlife-species.canada.ca\/harvest-survey."},{"key":"pone.0288262.ref063","doi-asserted-by":"crossref","first-page":"211","DOI":"10.1080\/1025601031000096781","article-title":"Comparative equilibration and online technique for determination of non-exchangeable hydrogen of keratins for use in animal migration studies","volume":"39","author":"LI Wassenaar","year":"2003","journal-title":"Isot Environ Healt S"},{"key":"pone.0288262.ref064","doi-asserted-by":"crossref","first-page":"732","DOI":"10.1111\/2041-210X.13556","article-title":"Calibration chain transformation improves the comparability of organic hydrogen and oxygen stable isotope data","volume":"12","author":"S Magozzi","year":"2021","journal-title":"Methods in Ecology and Evolution"},{"key":"pone.0288262.ref065","unstructured":"R Core Team. R: a language and environment for statistical computing. Vienna, Austria: R Foundation for Statistical Computing; 2021."},{"key":"pone.0288262.ref066","volume-title":"RStudio: integrated development for R","author":"RStudio Team","year":"2021"},{"key":"pone.0288262.ref067","doi-asserted-by":"crossref","first-page":"439","DOI":"10.32614\/RJ-2018-009","article-title":"Simple features for R: standardized support for spatial vector data","volume":"10","author":"E. Pebesma","year":"2018","journal-title":"The R Journal"},{"key":"pone.0288262.ref068","doi-asserted-by":"crossref","unstructured":"Hijmans RJ. terra: spatial data analysis. R package. 2021. https:\/\/CRAN.R-project.org\/package=terra.","DOI":"10.32614\/CRAN.package.terra"},{"key":"pone.0288262.ref069","unstructured":"South A. rnaturalearth: world map data from natural earth. R package version 010. 2017. https:\/\/CRAN.R-project.org\/package=rnaturalearth."},{"key":"pone.0288262.ref070","first-page":"5","article-title":"The moult migration","volume":"19","author":"F. Salomonsen","year":"1968","journal-title":"Wildfowl"},{"key":"pone.0288262.ref071","doi-asserted-by":"crossref","first-page":"1780","DOI":"10.1890\/04-0175","article-title":"The role of species abundance in determining breeding origins of migratory birds with stable isotopes","volume":"14","author":"JA Royle","year":"2004","journal-title":"Ecological Applications"},{"key":"pone.0288262.ref072","doi-asserted-by":"crossref","DOI":"10.1093\/condor\/duz052","article-title":"Using stable isotopes to estimate migratory connectivity for a patchily distributed, wetland-associated Neotropical migrant","volume":"121","author":"J Reese","year":"2019","journal-title":"The Condor"},{"key":"pone.0288262.ref073","doi-asserted-by":"crossref","first-page":"e35679","DOI":"10.1371\/journal.pone.0035679","article-title":"Disease dynamics and bird migration\u2014Linking Mallards Anas platyrhynchos and subtype diversity of the Influenza A virus in time and space","volume":"7","author":"G Gunnarsson","year":"2012","journal-title":"PLOS ONE"},{"key":"pone.0288262.ref074","doi-asserted-by":"crossref","first-page":"233","DOI":"10.1676\/wils-127-02-233-238.1","article-title":"Breeding origins of Northern Shovelers (Anas clypeata) wintering on the Great Salt Lake, Utah","volume":"127","author":"AJ Roberts","year":"2015","journal-title":"The Wilson Journal of Ornithology"},{"key":"pone.0288262.ref075","unstructured":"BirdLife International and Handbook of the Birds of the World. Bird species distribution maps of the world. Version 2020.1. 2021. http:\/\/datazone.birdlife.org\/species\/requestdis."},{"key":"pone.0288262.ref076","doi-asserted-by":"crossref","first-page":"1850","DOI":"10.1016\/j.quascirev.2006.01.021","article-title":"Stable hydrogen-isotope ratios in beetle chitin: preliminary European data and re-interpretation of North American data","volume":"25","author":"DR Gr\u00f6cke","year":"2006","journal-title":"Quaternary Science Reviews"},{"key":"pone.0288262.ref077","doi-asserted-by":"crossref","first-page":"51","DOI":"10.1007\/s00027-022-00882-3","article-title":"Characterizing spatial and temporal variation in stable hydrogen isotopes (\u03b42H) between two distinct lentic freshwater food webs","volume":"84","author":"MC Cavallaro","year":"2022","journal-title":"Aquatic Sciences"},{"key":"pone.0288262.ref078","doi-asserted-by":"crossref","first-page":"1223","DOI":"10.1111\/j.1365-2656.2012.01998.x","article-title":"The early bird gets the shrimp: confronting assumptions of isotopic equilibrium and homogeneity in a wild bird population","volume":"81","author":"MB Wunder","year":"2012","journal-title":"Journal of Animal Ecology"},{"key":"pone.0288262.ref079","volume-title":"Environmental Isotopes in Hydrogeology","author":"I Clark","year":"1997"},{"key":"pone.0288262.ref080","doi-asserted-by":"crossref","first-page":"449","DOI":"10.1007\/s00442-007-0669-3","article-title":"Hydrogen isotopic variation in migratory bird tissues of known origin: implications for geographic assignment","volume":"152","author":"KM Langin","year":"2007","journal-title":"Oecologia"},{"key":"pone.0288262.ref081","doi-asserted-by":"crossref","first-page":"567","DOI":"10.1093\/condor\/105.3.567","article-title":"Variation in hydrogen stable-isotope ratios between adult and nestling Cooper\u2019s Hawks","volume":"105","author":"TD Meehan","year":"2003","journal-title":"The Condor"},{"key":"pone.0288262.ref082","doi-asserted-by":"crossref","first-page":"722","DOI":"10.1139\/z2012-039","article-title":"Assigning birds to geographic origin using feather hydrogen isotope ratios (\u03b42H): importance of year, age, and habitat","volume":"90","author":"S Hach\u00e9","year":"2012","journal-title":"Can J Zool"},{"key":"pone.0288262.ref083","doi-asserted-by":"crossref","first-page":"201","DOI":"10.1111\/2041-210X.12147","article-title":"Geographic assignment with stable isotopes in IsoMAP","volume":"5","author":"GJ Bowen","year":"2014","journal-title":"Methods Ecol Evol"},{"key":"pone.0288262.ref084","doi-asserted-by":"crossref","first-page":"266","DOI":"10.1111\/jav.00553","article-title":"Incorporating site and year-specific deuterium ratios (\u03b42H) from precipitation into geographic assignments of a migratory bird","volume":"46","author":"CM Tonra","year":"2015","journal-title":"J Avian Biol"},{"key":"pone.0288262.ref085","doi-asserted-by":"crossref","first-page":"891","DOI":"10.1111\/2041-210X.12229","article-title":"Contrasting assignment of migratory organisms to geographic origins using long-term versus year-specific precipitation isotope maps","volume":"5","author":"HB Vander Zanden","year":"2014","journal-title":"Methods in Ecology and Evolution"},{"key":"pone.0288262.ref086","doi-asserted-by":"crossref","first-page":"1317","DOI":"10.2193\/2006-188","article-title":"Use of stable isotope methodology to determine natal origins of Mallards at a fine scale within the Upper Midwest","volume":"71","author":"ML Szymanski","year":"2007","journal-title":"The Journal of Wildlife Management"},{"key":"pone.0288262.ref087","unstructured":"Raftovich R, Fleming K, Chandler S, Cain C. Migratory bird hunting activity and harvest during the 2020\u201321 and 2021\u201322 hunting seasons. U.S. Fish and Wildlife Service, Laurel, Maryland, USA; 2022. https:\/\/www.fws.gov\/birds\/surveys-and-data\/reports-and-publications\/hunting-activity-and-harvest.php."},{"key":"pone.0288262.ref088","article-title":"Data from: Assigning harvested waterfowl to geographic origin using feather \u03b42H isoscapes: What is the best analytical approach?","author":"JW Kusack","year":"2023","journal-title":"Dryad, Dataset"}],"container-title":["PLOS ONE"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/dx.plos.org\/10.1371\/journal.pone.0288262","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,10,23]],"date-time":"2024-10-23T18:40:51Z","timestamp":1729708851000},"score":1,"resource":{"primary":{"URL":"https:\/\/dx.plos.org\/10.1371\/journal.pone.0288262"}},"subtitle":[],"editor":[{"given":"Lee W","family":"Cooper","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"editor"}]}],"short-title":[],"issued":{"date-parts":[[2023,7,10]]},"references-count":88,"journal-issue":{"issue":"7","published-online":{"date-parts":[[2023,7,10]]}},"URL":"https:\/\/doi.org\/10.1371\/journal.pone.0288262","relation":{},"ISSN":["1932-6203"],"issn-type":[{"value":"1932-6203","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,7,10]]}}}