Building of Leaf Shelters by Stenoma scitiorella Walker (Lepidoptera: Elachistidae): Manipulation of Host Plant Quality?
Autor(a) principal: | |
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Data de Publicação: | 2002 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Neotropical entomology (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2002000400005 |
Resumo: | Building of leaf shelters is a widespread behavior among microlepidopteran larvae. Apparently, these shelters provide refuge to caterpillars against bad weather and reduce the risks of predation and parasitism. Recent studies about nutritional ecology of insects have suggested that such behavior would actually be an strategy evolutionarily selected to maximize the quality of the host plant consumed by them. Stenoma scitiorella Walker caterpillars tie together young Xylopia aromatica (Lam.) Mart. (Annonaceae) leaves to build a shelter in which they retreat, feeding exclusively on inner leaves. The accumulation of damage and excrement in leaf shelters with several caterpillars may lead to a decline in larval development and survivorship. For providing the best conditions for larval development most leaf shelters (53,4%) are occupied by only one caterpillar. Although altering the water and soluble carbohydrates contents, the building of shelters did not affect either the tannins concentrations or the preference of caterpillars for external or internal leaves. Hence, probably this behavior does not denote an adaptative strategy of the insect to overcome the host plant chemical defenses. Thus, it is possible that the leaf shelters of S. scitiorella caterpillars are built for other purposes as, for example, to protect caterpillars from desiccation and predation. |
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Building of Leaf Shelters by Stenoma scitiorella Walker (Lepidoptera: Elachistidae): Manipulation of Host Plant Quality?CerradoherbivorycaterpillartanninXylopia aromaticaBuilding of leaf shelters is a widespread behavior among microlepidopteran larvae. Apparently, these shelters provide refuge to caterpillars against bad weather and reduce the risks of predation and parasitism. Recent studies about nutritional ecology of insects have suggested that such behavior would actually be an strategy evolutionarily selected to maximize the quality of the host plant consumed by them. Stenoma scitiorella Walker caterpillars tie together young Xylopia aromatica (Lam.) Mart. (Annonaceae) leaves to build a shelter in which they retreat, feeding exclusively on inner leaves. The accumulation of damage and excrement in leaf shelters with several caterpillars may lead to a decline in larval development and survivorship. For providing the best conditions for larval development most leaf shelters (53,4%) are occupied by only one caterpillar. Although altering the water and soluble carbohydrates contents, the building of shelters did not affect either the tannins concentrations or the preference of caterpillars for external or internal leaves. Hence, probably this behavior does not denote an adaptative strategy of the insect to overcome the host plant chemical defenses. Thus, it is possible that the leaf shelters of S. scitiorella caterpillars are built for other purposes as, for example, to protect caterpillars from desiccation and predation.Sociedade Entomológica do Brasil2002-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2002000400005Neotropical Entomology v.31 n.4 2002reponame:Neotropical entomology (Online)instname:Sociedade Entomológica do Brasil (SEB)instacron:SEB10.1590/S1519-566X2002000400005info:eu-repo/semantics/openAccessCOSTA,ALEXANDRE A.VARANDA,ELENICE M.eng2003-02-20T00:00:00Zoai:scielo:S1519-566X2002000400005Revistahttp://www.scielo.br/neONGhttps://old.scielo.br/oai/scielo-oai.php||editor@seb.org.br1678-80521519-566Xopendoar:2003-02-20T00:00Neotropical entomology (Online) - Sociedade Entomológica do Brasil (SEB)false |
dc.title.none.fl_str_mv |
Building of Leaf Shelters by Stenoma scitiorella Walker (Lepidoptera: Elachistidae): Manipulation of Host Plant Quality? |
title |
Building of Leaf Shelters by Stenoma scitiorella Walker (Lepidoptera: Elachistidae): Manipulation of Host Plant Quality? |
spellingShingle |
Building of Leaf Shelters by Stenoma scitiorella Walker (Lepidoptera: Elachistidae): Manipulation of Host Plant Quality? COSTA,ALEXANDRE A. Cerrado herbivory caterpillar tannin Xylopia aromatica |
title_short |
Building of Leaf Shelters by Stenoma scitiorella Walker (Lepidoptera: Elachistidae): Manipulation of Host Plant Quality? |
title_full |
Building of Leaf Shelters by Stenoma scitiorella Walker (Lepidoptera: Elachistidae): Manipulation of Host Plant Quality? |
title_fullStr |
Building of Leaf Shelters by Stenoma scitiorella Walker (Lepidoptera: Elachistidae): Manipulation of Host Plant Quality? |
title_full_unstemmed |
Building of Leaf Shelters by Stenoma scitiorella Walker (Lepidoptera: Elachistidae): Manipulation of Host Plant Quality? |
title_sort |
Building of Leaf Shelters by Stenoma scitiorella Walker (Lepidoptera: Elachistidae): Manipulation of Host Plant Quality? |
author |
COSTA,ALEXANDRE A. |
author_facet |
COSTA,ALEXANDRE A. VARANDA,ELENICE M. |
author_role |
author |
author2 |
VARANDA,ELENICE M. |
author2_role |
author |
dc.contributor.author.fl_str_mv |
COSTA,ALEXANDRE A. VARANDA,ELENICE M. |
dc.subject.por.fl_str_mv |
Cerrado herbivory caterpillar tannin Xylopia aromatica |
topic |
Cerrado herbivory caterpillar tannin Xylopia aromatica |
description |
Building of leaf shelters is a widespread behavior among microlepidopteran larvae. Apparently, these shelters provide refuge to caterpillars against bad weather and reduce the risks of predation and parasitism. Recent studies about nutritional ecology of insects have suggested that such behavior would actually be an strategy evolutionarily selected to maximize the quality of the host plant consumed by them. Stenoma scitiorella Walker caterpillars tie together young Xylopia aromatica (Lam.) Mart. (Annonaceae) leaves to build a shelter in which they retreat, feeding exclusively on inner leaves. The accumulation of damage and excrement in leaf shelters with several caterpillars may lead to a decline in larval development and survivorship. For providing the best conditions for larval development most leaf shelters (53,4%) are occupied by only one caterpillar. Although altering the water and soluble carbohydrates contents, the building of shelters did not affect either the tannins concentrations or the preference of caterpillars for external or internal leaves. Hence, probably this behavior does not denote an adaptative strategy of the insect to overcome the host plant chemical defenses. Thus, it is possible that the leaf shelters of S. scitiorella caterpillars are built for other purposes as, for example, to protect caterpillars from desiccation and predation. |
publishDate |
2002 |
dc.date.none.fl_str_mv |
2002-10-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2002000400005 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2002000400005 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1519-566X2002000400005 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Entomológica do Brasil |
publisher.none.fl_str_mv |
Sociedade Entomológica do Brasil |
dc.source.none.fl_str_mv |
Neotropical Entomology v.31 n.4 2002 reponame:Neotropical entomology (Online) instname:Sociedade Entomológica do Brasil (SEB) instacron:SEB |
instname_str |
Sociedade Entomológica do Brasil (SEB) |
instacron_str |
SEB |
institution |
SEB |
reponame_str |
Neotropical entomology (Online) |
collection |
Neotropical entomology (Online) |
repository.name.fl_str_mv |
Neotropical entomology (Online) - Sociedade Entomológica do Brasil (SEB) |
repository.mail.fl_str_mv |
||editor@seb.org.br |
_version_ |
1754820843749244928 |