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Although it is known that differences along the hypothalamic\u2013pituitary\u2013gonadal (HPG) axis can explain differences in reproductive timing across the dark-eyed junco (Junco hyemalis) range, it remains unknown whether these differences arise from local adaptation or early-life environmental effects. We exposed nestlings from a single population to photoperiods mimicking development at the northern and southern extents of the species\u2019 breeding range. In autumn, we adjusted the photoperiod in the northern treatment to mimic southward migration, after which all birds experienced the same daylengths through the winter to simulate mixed overwintering flocks in the wild. Beginning early March, birds were injected with gonadotropin-releasing hormone (GnRH) to measure induced testosterone as a proxy for HPG axis maturation; brood patches, cloacal protuberances and fat were also measured. Males raised under northern developmental photoperiods delayed the onset of reproductive readiness compared with control males. Sample date affected females\u2019 GnRH-induced testosterone and fat deposition but not in clear patterns. These results indicate the daylength under which male songbirds develop can influence their reproductive schedules. Further research should discern the interplay of plasticity and genotypes and potential sex-specific differences.<\/jats:p>","DOI":"10.1098\/rspb.2026.1696","type":"journal-article","created":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T00:22:56Z","timestamp":1791937376000},"source":"Crossref","is-referenced-by-count":1,"title":["Developmental photoperiod alters the onset and capacity for reproduction in male dark-eyed juncos (\n                    <i>Junco hyemalis<\/i>\n                    )"],"prefix":"10.1098","volume":"293","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-5893-5590","authenticated-orcid":false,"given":"Carlie G.","family":"Saline","sequence":"first","affiliation":[{"name":"Biological Sciences Department, North Dakota State University 1 , Fargo, ND 58105, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adam M.","family":"Fudicker","sequence":"additional","affiliation":[{"name":"Center for the Integrative Study of Animal Behavior, Indiana University Bloomington 2 , Bloomington, IN 47405, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Allison J.","family":"Byrd","sequence":"additional","affiliation":[{"name":"Department of Biology, Indiana University Bloomington 3 , Bloomington, IN 47405, USA"},{"name":"Tin Mountain Conservation Center 4 , Albany, NH 03818, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ellen D.","family":"Ketterson","sequence":"additional","affiliation":[{"name":"Department of Biology, Indiana University Bloomington 3 , Bloomington, IN 47405, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Timothy J.","family":"Greives","sequence":"additional","affiliation":[{"name":"Biological Sciences Department, North Dakota State University 1 , Fargo, ND 58105, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"175","published-online":{"date-parts":[[2026,10,14]]},"reference":[{"key":"2026101906353622700_RSPB20261696C1","doi-asserted-by":"crossref","first-page":"283","DOI":"10.1177\/074873001129001980","article-title":"Mammalian photoperiodic system: formal properties and neuroendocrine mechanisms of photoperiodic time measurement","volume":"16","author":"Goldman","year":"2001","journal-title":"J. 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Soft."},{"key":"2026101906353622700_RSPB20261696C35","doi-asserted-by":"crossref","first-page":"148","DOI":"10.18637\/jss.v067.i01","article-title":"Fitting linear mixed-effects models using lme4","volume":"67","author":"Bates","year":"2015","journal-title":"J. Stat. Soft."},{"key":"2026101906353622700_RSPB20261696C36","article-title":"emmeans: Estimated Marginal Means, aka Least-Squares Means","author":"Lenth","year":"2024"},{"key":"2026101906353622700_RSPB20261696C37","doi-asserted-by":"crossref","first-page":"453","DOI":"10.1146\/annurev.es.18.110187.002321","article-title":"Food as a limit on breeding birds: a life-history perspective","volume":"18","author":"Martin","year":"1987","journal-title":"Annu. Rev. Ecol. Syst."},{"key":"2026101906353622700_RSPB20261696C38","doi-asserted-by":"crossref","first-page":"577","DOI":"10.2307\/3545949","article-title":"Fat stores and arrival on the breeding grounds: reproductive consequences for passerine migrants","volume":"77","author":"Sandberg","year":"1996","journal-title":"Oikos"},{"key":"2026101906353622700_RSPB20261696C39","doi-asserted-by":"crossref","DOI":"10.1016\/0018-506X(91)90049-N","article-title":"Territorial aggression and song of male European robins (Erithacus Rubecula) in autumn and spring: Effects of antiandrogen treatment","volume":"25","author":"Schwabl","year":"1991","journal-title":"Horm. Behav."},{"key":"2026101906353622700_RSPB20261696C40","doi-asserted-by":"crossref","first-page":"95","DOI":"10.1146\/annurev.ecolsys.32.081501.114006","article-title":"The physiology of life history trade-offs in animals","volume":"32","author":"Zera","year":"2001","journal-title":"Annu. Rev. Ecol. Syst."},{"key":"2026101906353622700_RSPB20261696C41","doi-asserted-by":"crossref","first-page":"199","DOI":"10.2141\/jpsa.43.199","article-title":"Gonadotropin releasing hormones and their receptors in avian species","volume":"43","author":"B\u00e9d\u00e9carrats","year":"2006","journal-title":"J. Poult. Sci."},{"key":"2026101906353622700_RSPB20261696C42","doi-asserted-by":"crossref","first-page":"57","DOI":"10.1016\/j.anireprosci.2005.05.004","article-title":"Pituitary gonadotropin-releasing hormone (GnRH) receptor: structure, distribution and regulation of expression","volume":"88","author":"Rispoli","year":"2005","journal-title":"Anim. Reprod. Sci."},{"key":"2026101906353622700_RSPB20261696C43","doi-asserted-by":"crossref","first-page":"20221334","DOI":"10.1098\/rspb.2022.1334","article-title":"Genetic evidence for widespread population size expansion in North American boreal birds prior to the last glacial maximum","volume":"290","author":"Kimmitt","year":"2023","journal-title":"Proc. R. Soc. B"},{"key":"2026101906353622700_RSPB20261696C44","article-title":"Bird migration: A general survey. Oxford, England: Oxford University Press","author":"Berthold","year":"2001"},{"key":"2026101906353622700_RSPB20261696C45","doi-asserted-by":"crossref","first-page":"179","DOI":"10.1016\/j.yhbeh.2013.10.006","article-title":"Examining sources of variation in HPG axis function among individuals and populations of the dark-eyed junco","volume":"65","author":"Bergeon Burns","year":"2014","journal-title":"Horm. Behav."},{"key":"2026101906353622700_RSPB20261696C46","doi-asserted-by":"crossref","first-page":"330","DOI":"10.1098\/rsbl.2011.1100","article-title":"Melatonin delays clutch initiation in a wild songbird","volume":"8","author":"Greives","year":"2016","journal-title":"Biol. Lett."},{"key":"2026101906353622700_RSPB20261696C47","article-title":"Personal communication","author":"Greives","year":"2025"},{"key":"2026101906353622700_RSPB20261696C48","article-title":"Personal observation","author":"Saline","year":"2024"},{"key":"2026101906353622700_RSPB20261696C49","doi-asserted-by":"crossref","first-page":"1621","DOI":"10.1098\/rstb.2007.0004","article-title":"Control of the annual cycle in birds: endocrine constraints and plasticity in response to ecological variability","volume":"363","author":"Dawson","year":"2007","journal-title":"Phil. Trans. R. Soc. Lond. Ser. 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Bio."},{"key":"2026101906353622700_RSPB20261696C53","doi-asserted-by":"crossref","first-page":"44","DOI":"10.1006\/gcen.1997.6894","article-title":"Effects of day length and temperature on gonadal development, body mass, and fat depots in white-crowned sparrows, Zonotrichia Leucophrys pugetensis.","volume":"107","author":"Wingfield","year":"1997","journal-title":"Gen. Comp. 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Lett."},{"key":"2026101906353622700_RSPB20261696C59","doi-asserted-by":"crossref","first-page":"220","DOI":"10.1093\/evolut\/qpae155","article-title":"Shared environmental similarity between relatives influences heritability of reproductive timing in wild great tits","volume":"79","author":"Jones","year":"2025","journal-title":"Evolution"},{"key":"2026101906353622700_RSPB20261696C60","doi-asserted-by":"crossref","first-page":"2653","DOI":"10.1098\/rspb.2007.0852","article-title":"Recent postglacial range expansion drives the rapid diversification of a songbird lineage in the genus Junco","volume":"274","author":"Mil\u00e1","year":"2007","journal-title":"Proc. R. Soc. 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