View in EDS

Isotopic fractionation with morphological change and sexual specificity in the lappet moth Euthrix potatoria.

Saved in:
Bibliographic Details
Title: Isotopic fractionation with morphological change and sexual specificity in the lappet moth Euthrix potatoria.
Authors: Sato, Nozomu, Azuma, Nobuyuki
Source: Entomologia Experimentalis et Applicata. Dec2016, Vol. 161 Issue 3, p181-186. 6p.
Subjects: Moths, Insect morphology, Insect metamorphosis, Insect sex differences, Food chains
Abstract: The δ15N values of adult holometabolous insects exceed those of larvae, but otherwise little information on terrestrial invertebrates has been obtained in food-web analyses using stable isotope ratios (δ15N, δ13C). Changes in δ13C during metamorphosis and differences between males and females have not been examined. We collected the larvae and cocoons of Euthrix potatoria (L.) ( Lepidoptera: Lasiocampidae) in the field and used them to assess the species' isotopic fractionation. Each emerged moth was divided into five body parts. We conducted stable N and C isotope analyses for each body part, as well as for cocoons and exuviae, and also compared stable isotope ratios between sexes. We confirmed δ15N enrichment through metamorphosis and estimated that δ15N enrichment is accomplished by the relative concentration of 15N due to the excretion of copious meconium, which contains abundant 14N. We also observed changes in δ13C values through metamorphosis. Both isotope values tended to change more in males than in females. The proportion of the whole-adult weight represented by meconium was higher in males than in females, suggesting that high meconium secretion in males contributes to the sexual difference in δ15N. These phenomena may be common in Holometabola, which require a pupal stage. For more accurate food-web assessments, it is important to consider stable isotope changes during different life cycles, as well as sexual differences. [ABSTRACT FROM AUTHOR]
Copyright of Entomologia Experimentalis et Applicata is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
FullText Text:
  Availability: 0
Header DbId: pbh
DbLabel: Psychology and Behavioral Sciences Collection
An: 120128049
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Isotopic fractionation with morphological change and sexual specificity in the lappet moth Euthrix potatoria.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Sato%2C+Nozomu%22">Sato, Nozomu</searchLink><br /><searchLink fieldCode="AR" term="%22Azuma%2C+Nobuyuki%22">Azuma, Nobuyuki</searchLink>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Entomologia+Experimentalis+et+Applicata%22">Entomologia Experimentalis et Applicata</searchLink>. Dec2016, Vol. 161 Issue 3, p181-186. 6p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Moths%22">Moths</searchLink><br /><searchLink fieldCode="DE" term="%22Insect+morphology%22">Insect morphology</searchLink><br /><searchLink fieldCode="DE" term="%22Insect+metamorphosis%22">Insect metamorphosis</searchLink><br /><searchLink fieldCode="DE" term="%22Insect+sex+differences%22">Insect sex differences</searchLink><br /><searchLink fieldCode="DE" term="%22Food+chains%22">Food chains</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The δ15N values of adult holometabolous insects exceed those of larvae, but otherwise little information on terrestrial invertebrates has been obtained in food-web analyses using stable isotope ratios (δ15N, δ13C). Changes in δ13C during metamorphosis and differences between males and females have not been examined. We collected the larvae and cocoons of Euthrix potatoria (L.) ( Lepidoptera: Lasiocampidae) in the field and used them to assess the species' isotopic fractionation. Each emerged moth was divided into five body parts. We conducted stable N and C isotope analyses for each body part, as well as for cocoons and exuviae, and also compared stable isotope ratios between sexes. We confirmed δ15N enrichment through metamorphosis and estimated that δ15N enrichment is accomplished by the relative concentration of 15N due to the excretion of copious meconium, which contains abundant 14N. We also observed changes in δ13C values through metamorphosis. Both isotope values tended to change more in males than in females. The proportion of the whole-adult weight represented by meconium was higher in males than in females, suggesting that high meconium secretion in males contributes to the sexual difference in δ15N. These phenomena may be common in Holometabola, which require a pupal stage. For more accurate food-web assessments, it is important to consider stable isotope changes during different life cycles, as well as sexual differences. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Entomologia Experimentalis et Applicata is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=120128049
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1111/eea.12509
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 6
        StartPage: 181
    Subjects:
      – SubjectFull: Moths
        Type: general
      – SubjectFull: Insect morphology
        Type: general
      – SubjectFull: Insect metamorphosis
        Type: general
      – SubjectFull: Insect sex differences
        Type: general
      – SubjectFull: Food chains
        Type: general
    Titles:
      – TitleFull: Isotopic fractionation with morphological change and sexual specificity in the lappet moth Euthrix potatoria.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Sato, Nozomu
      – PersonEntity:
          Name:
            NameFull: Azuma, Nobuyuki
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 12
              Text: Dec2016
              Type: published
              Y: 2016
          Identifiers:
            – Type: issn-print
              Value: 00138703
          Numbering:
            – Type: volume
              Value: 161
            – Type: issue
              Value: 3
          Titles:
            – TitleFull: Entomologia Experimentalis et Applicata
              Type: main
ResultId 1