{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T00:49:12Z","timestamp":1787014152774,"version":"build-2736575974"},"reference-count":85,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2019,8,27]],"date-time":"2019-08-27T00:00:00Z","timestamp":1566864000000},"content-version":"am","delay-in-days":365,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#am"},{"start":{"date-parts":[[2018,8,27]],"date-time":"2018-08-27T00:00:00Z","timestamp":1535328000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100000001","name":"National Science Foundation","doi-asserted-by":"publisher","award":["NSF DEB\u20101406862"],"award-info":[{"award-number":["NSF DEB\u20101406862"]}],"id":[{"id":"10.13039\/100000001","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000001","name":"National Science Foundation","doi-asserted-by":"publisher","award":["NSF DEB\u20101256115"],"award-info":[{"award-number":["NSF DEB\u20101256115"]}],"id":[{"id":"10.13039\/100000001","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100008986","name":"University of Guelph","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100008986","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000039","name":"Environment Canada","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100000039","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Ecology Letters"],"published-print":{"date-parts":[[2018,11]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Environmental change induces some wildlife populations to shift from migratory to resident behaviours. Newly formed resident populations could influence the health and behaviour of remaining migrants. We investigated migrant\u2013resident interactions among monarch butterflies and consequences for life history and parasitism. Eastern North American monarchs migrate annually to Mexico, but some now breed year\u2010round on exotic milkweed in the southern US and experience high infection prevalence of protozoan parasites. Using stable isotopes (\u03b4\n                    <jats:sup>2<\/jats:sup>\n                    H, \u03b4\n                    <jats:sup>13<\/jats:sup>\n                    C) and cardenolide profiles to estimate natal origins, we show that migrant and resident monarchs overlap during fall and spring migration. Migrants at sites with residents were 13 times more likely to have infections and three times more likely to be reproductive (outside normal breeding season) compared to other migrants. Exotic milkweed might either attract migrants that are already infected or reproductive, or alternatively, induce these states. Increased migrant\u2013resident interactions could affect monarch parasitism, migratory success and long\u2010term conservation.\n                  <\/jats:p>","DOI":"10.1111\/ele.13144","type":"journal-article","created":{"date-parts":[[2018,8,29]],"date-time":"2018-08-29T17:05:11Z","timestamp":1535562311000},"page":"1670-1680","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":58,"title":["Migratory monarchs that encounter resident monarchs show life\u2010history differences and higher rates of parasite infection"],"prefix":"10.1111","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3036-5580","authenticated-orcid":false,"given":"Dara A.","family":"Satterfield","sequence":"first","affiliation":[{"name":"Odum School of Ecology University of Georgia Athens GA 30602 USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John C.","family":"Maerz","sequence":"additional","affiliation":[{"name":"Warnell School of Forestry and Natural Resources University of Georgia Athens GA 30602 USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3761-8237","authenticated-orcid":false,"given":"Mark D.","family":"Hunter","sequence":"additional","affiliation":[{"name":"Department of Ecology and Evolutionary Biology University of Michigan Ann Arbor MI 48109 USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5832-8610","authenticated-orcid":false,"given":"D.T. 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