{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1361699996004766080.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1007/s10682-006-9117-9"}},{"identifier":{"@type":"URI","@value":"http://link.springer.com/content/pdf/10.1007/s10682-006-9117-9.pdf"}},{"identifier":{"@type":"URI","@value":"http://link.springer.com/article/10.1007/s10682-006-9117-9/fulltext.html"}},{"identifier":{"@type":"URI","@value":"http://link.springer.com/content/pdf/10.1007/s10682-006-9117-9"}}],"dc:title":[{"@value":"A novel hypothesis for the origin of the sexual division of labor in termites: which sex should be soldiers?"}],"description":[{"notation":[{"@value":"Sexual specialization and skewed sex ratios of the altruistic castes, especially soldiers, are common in many termite taxa. However, no theoretical or empirical studies have explained the origin of the sexual division of labor in termites. In most termite species, female alates are larger than male alates, and mature queens are much larger than kings, with females under consistent selection for high fertility. Therefore, females usually have the potential to be larger than males. Here, I present a novel preadaptation hypothesis that potential sexual differences in the suitability for the caste give rise to the sexual division of labor, and I provide the first evidence in support of this hypothesis in termites. Defense in Reticulitermes is typically performed by soldiers via mandibular and phragmotic defense in which soldiers with pluglike heads block openings, thus preventing enemies from invading the nest. Phragmotic defense requires that soldiers have heads wide enough to plug nest openings. Therefore, a size threshold for workers that develop into soldiers is a likely adaptation for effective defense. I show that sexual size dimorphism (SSD) and a size threshold for soldiers promote skewed sex ratios. A female-biased soldier sex ratio was observed in species with SSD, whereas there was no bias in soldier sex ratio in species without SSD. Thus, SSD and soldier sex ratio data from several Reticulitermes species support the preadaptation hypothesis."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381699996004766080","@type":"Researcher","foaf:name":[{"@value":"Kenji Matsuura"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"02697653"},{"@type":"EISSN","@value":"15738477"}],"prism:publicationName":[{"@value":"Evolutionary Ecology"}],"dc:publisher":[{"@value":"Springer Science and Business Media LLC"}],"prism:publicationDate":"2006-09-28","prism:volume":"20","prism:number":"6","prism:startingPage":"565","prism:endingPage":"574"},"reviewed":"false","dc:rights":["http://www.springer.com/tdm"],"url":[{"@id":"http://link.springer.com/content/pdf/10.1007/s10682-006-9117-9.pdf"},{"@id":"http://link.springer.com/article/10.1007/s10682-006-9117-9/fulltext.html"},{"@id":"http://link.springer.com/content/pdf/10.1007/s10682-006-9117-9"}],"createdAt":"2006-09-27","modifiedAt":"2020-04-18","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050564288161136896","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Loss of males from mixed-sex societies in termites"}]},{"@id":"https://cir.nii.ac.jp/crid/1050587981434192768","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Skewed soldier sex ratio in termites: testing the size-threshold hypothesis"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004235972465280","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Cellulolytic Protist Numbers Rise and Fall Dramatically in Termite Queens and Kings during Colony Foundation"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285707262760704","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Sexual difference in juvenile-hormone titer in workers leads to sex-biased soldier differentiation in termites"}]},{"@id":"https://cir.nii.ac.jp/crid/1360302865735773440","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Plastic brain structure changes associated with the division of labor and aging in termites"}]},{"@id":"https://cir.nii.ac.jp/crid/1360302866851135104","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Maternal determination of soldier proportion and paternal determination of soldier sex ratio in hybrid Reticulitermes (Isoptera: Rhinotermitidae) termite colonies"}]},{"@id":"https://cir.nii.ac.jp/crid/1360848656379482496","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Colony‐dependent sex differences in protozoan communities of the lower termite\n                    <i>Reticulitermes speratus</i>\n                    (Isoptera: Rhinotermitidae)"}]},{"@id":"https://cir.nii.ac.jp/crid/1361694370367417600","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"The making of the defensive caste: Physiology, development, and evolution of the soldier differentiation in termites"}]},{"@id":"https://cir.nii.ac.jp/crid/1522825129688697088","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"On the Apterous Line of the Termite Velocitermes heteropterus (Isoptera: Termitidae) : Developmental Pathways and Cellulose Digestion"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1007/s10682-006-9117-9"},{"@type":"OPENAIRE","@value":"doi_dedup___::bb955e0d1220e6d6969499a23cdd0514"},{"@type":"CROSSREF","@value":"10.1128/ec.00286-12_references_DOI_UbnJtFuASnm8pGfXc11DxfzaKUO"},{"@type":"CROSSREF","@value":"10.1186/s12915-018-0563-y_references_DOI_UbnJtFuASnm8pGfXc11DxfzaKUO"},{"@type":"CROSSREF","@value":"10.1016/j.jinsphys.2016.02.005_references_DOI_UbnJtFuASnm8pGfXc11DxfzaKUO"},{"@type":"CROSSREF","@value":"10.1111/dgd.12873_references_DOI_UbnJtFuASnm8pGfXc11DxfzaKUO"},{"@type":"CROSSREF","@value":"10.1371/journal.pone.0293096_references_DOI_UbnJtFuASnm8pGfXc11DxfzaKUO"},{"@type":"CROSSREF","@value":"10.1007/s00040-012-0252-8_references_DOI_UbnJtFuASnm8pGfXc11DxfzaKUO"},{"@type":"CROSSREF","@value":"10.1007/s11284-016-1387-2_references_DOI_UbnJtFuASnm8pGfXc11DxfzaKUO"},{"@type":"CROSSREF","@value":"10.1111/ede.12335_references_DOI_UbnJtFuASnm8pGfXc11DxfzaKUO"},{"@type":"CROSSREF","@value":"10.2108/zsj.29.815_references_DOI_UbnJtFuASnm8pGfXc11DxfzaKUO"}]}