{"title":"蜂头几何形态测定法在夜间活动蜂属(膜翅目,蜂总科)性别和种类鉴别中的应用","authors":"Priscila Soares Oliveira, Rodrigo Barbosa Gonçalves","doi":"10.1007/s13592-023-01020-0","DOIUrl":null,"url":null,"abstract":"<div><p>Geometric morphometrics is an approach widely used in biological research. For bees, wing landmarks are applied to investigate several questions, such as species identification and population dynamics, yet other morphological structures remain understudied. <i>Megalopta</i> Smith reunite species that forage at dim-light conditions having heads with modifications on shape and size associated with specialized compound eyes and ocelli. In this study, we selected both sexes of 14 species to test if head landmarks can successfully differentiate <i>Megalopta</i> sexes, species, and taxonomic groups. We found that head and eye centroid size and Mahalanobis and Procrustes distances were consistently different between males and females. Male and female differed on lower head landmarks. When contrasting both species and taxonomic groups, canonical variate analysis could differentiate species pairs for most comparisons, while principal component and cluster analysis did not recover such taxonomic groups. Species differences were linked to variation in upper eye landmarks. We conclude that head and wing geometric morphometrics have similar potential and constraints, and response subjects should be selected based on underlying biological questions rather than convenience alone.</p></div>","PeriodicalId":8078,"journal":{"name":"Apidologie","volume":null,"pages":null},"PeriodicalIF":2.4000,"publicationDate":"2023-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13592-023-01020-0.pdf","citationCount":"0","resultStr":"{\"title\":\"Head geometric morphometrics as a reliable method to discriminate sexes and species of Megalopta, a nocturnal bee genus (Hymenoptera, Apoidea)\",\"authors\":\"Priscila Soares Oliveira, Rodrigo Barbosa Gonçalves\",\"doi\":\"10.1007/s13592-023-01020-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Geometric morphometrics is an approach widely used in biological research. For bees, wing landmarks are applied to investigate several questions, such as species identification and population dynamics, yet other morphological structures remain understudied. <i>Megalopta</i> Smith reunite species that forage at dim-light conditions having heads with modifications on shape and size associated with specialized compound eyes and ocelli. In this study, we selected both sexes of 14 species to test if head landmarks can successfully differentiate <i>Megalopta</i> sexes, species, and taxonomic groups. We found that head and eye centroid size and Mahalanobis and Procrustes distances were consistently different between males and females. Male and female differed on lower head landmarks. When contrasting both species and taxonomic groups, canonical variate analysis could differentiate species pairs for most comparisons, while principal component and cluster analysis did not recover such taxonomic groups. Species differences were linked to variation in upper eye landmarks. We conclude that head and wing geometric morphometrics have similar potential and constraints, and response subjects should be selected based on underlying biological questions rather than convenience alone.</p></div>\",\"PeriodicalId\":8078,\"journal\":{\"name\":\"Apidologie\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.4000,\"publicationDate\":\"2023-08-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://link.springer.com/content/pdf/10.1007/s13592-023-01020-0.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Apidologie\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s13592-023-01020-0\",\"RegionNum\":3,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENTOMOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Apidologie","FirstCategoryId":"97","ListUrlMain":"https://link.springer.com/article/10.1007/s13592-023-01020-0","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENTOMOLOGY","Score":null,"Total":0}
Head geometric morphometrics as a reliable method to discriminate sexes and species of Megalopta, a nocturnal bee genus (Hymenoptera, Apoidea)
Geometric morphometrics is an approach widely used in biological research. For bees, wing landmarks are applied to investigate several questions, such as species identification and population dynamics, yet other morphological structures remain understudied. Megalopta Smith reunite species that forage at dim-light conditions having heads with modifications on shape and size associated with specialized compound eyes and ocelli. In this study, we selected both sexes of 14 species to test if head landmarks can successfully differentiate Megalopta sexes, species, and taxonomic groups. We found that head and eye centroid size and Mahalanobis and Procrustes distances were consistently different between males and females. Male and female differed on lower head landmarks. When contrasting both species and taxonomic groups, canonical variate analysis could differentiate species pairs for most comparisons, while principal component and cluster analysis did not recover such taxonomic groups. Species differences were linked to variation in upper eye landmarks. We conclude that head and wing geometric morphometrics have similar potential and constraints, and response subjects should be selected based on underlying biological questions rather than convenience alone.
期刊介绍:
Apidologie is a peer-reviewed journal devoted to the biology of insects belonging to the superfamily Apoidea.
Its range of coverage includes behavior, ecology, pollination, genetics, physiology, systematics, toxicology and pathology. Also accepted are papers on the rearing, exploitation and practical use of Apoidea and their products, as far as they make a clear contribution to the understanding of bee biology.
Apidologie is an official publication of the Institut National de la Recherche Agronomique (INRA) and Deutscher Imkerbund E.V. (D.I.B.)