{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T19:00:09Z","timestamp":1790017209757,"version":"4.0.1"},"reference-count":37,"publisher":"Oxford University Press (OUP)","issue":"6","license":[{"start":{"date-parts":[[2013,5,13]],"date-time":"2013-05-13T00:00:00Z","timestamp":1368403200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"NSF","award":["DEB-79060332"],"award-info":[{"award-number":["DEB-79060332"]}]},{"name":"NSF","award":["BRS-8315399"],"award-info":[{"award-number":["BRS-8315399"]}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Evolutionary Biology"],"published-print":{"date-parts":[[2013,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Evolution of pollen feeding in <jats:italic><jats:styled-content style=\"fixed-case\">H<\/jats:styled-content>eliconius<\/jats:italic> has allowed exploitation of rich amino acid sources and dramatically reorganized life\u2010history traits. In <jats:italic><jats:styled-content style=\"fixed-case\">H<\/jats:styled-content>eliconius,<\/jats:italic> eggs are produced mainly from adult\u2010acquired resources, leaving somatic development and maintenance to larva effort. This innovation may also have spurred evolution of chemical defence via amino acid\u2010derived cyanogenic glycosides. In contrast, nonpollen\u2010feeding heliconiines must rely almost exclusively on larval\u2010acquired resources for both reproduction and defence. We tested whether adult amino acid intake has an immediate influence on cyanogenesis in <jats:italic><jats:styled-content style=\"fixed-case\">H<\/jats:styled-content>eliconius<\/jats:italic>. Because <jats:italic><jats:styled-content style=\"fixed-case\">H<\/jats:styled-content>eliconius<\/jats:italic> are more distasteful to bird predators than close relatives that do not utilize pollen, we also compared cyanogenesis due to larval input across <jats:italic><jats:styled-content style=\"fixed-case\">H<\/jats:styled-content>eliconius<\/jats:italic> species and nonpollen\u2010feeding relatives. Except for one species, we found that varying the amino acid diet of an adult <jats:italic><jats:styled-content style=\"fixed-case\">H<\/jats:styled-content>eliconius<\/jats:italic> has negligible effect on its cyanide concentration. Adults denied amino acids showed no decrease in cyanide and no adults showed cyanide increase when fed amino acids. Yet, pollen\u2010feeding butterflies were capable of producing more defence than nonpollen\u2010feeding relatives and differences were detectable in freshly emerged adults, before input of adult resources. Our data points to a larger role of larval input in adult chemical defence. This coupled with the compartmentalization of adult nutrition to reproduction and longevity suggests that one evolutionary consequence of pollen feeding, shifting the burden of reproduction to adults, is to allow the evolution of greater allocation of host plant amino acids to defensive compounds by larvae.<\/jats:p>","DOI":"10.1111\/jeb.12119","type":"journal-article","created":{"date-parts":[[2013,5,13]],"date-time":"2013-05-13T07:06:43Z","timestamp":1368428803000},"page":"1254-1260","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":30,"title":["Pollen feeding, resource allocation and the evolution of chemical defence in passion vine butterflies"],"prefix":"10.1093","volume":"26","author":[{"given":"M. Z.","family":"Cardoso","sequence":"first","affiliation":[{"name":"Section of Integrative Biology University of Texas Austin TX USA"},{"name":"Bot\u00e2nica, Ecologia e Zoologia Centro de Bioci\u00eancias Universidade Federal do Rio Grande do Norte Natal Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"L. 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