| Registro completo |
| Provedor de dados: |
Acta Botanica
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| País: |
Brazil
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| Título: |
Plant architecture influences gall abundance in a tropical montane plant species
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| Autores: |
Boaventura,Maria Gabriela
Pereira,Cássio Cardoso
Cornelissen,Tatiana
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| Data: |
2018-12-01
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| Ano: |
2018
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| Palavras-chave: |
Elevation gradient
Galls
Insects
Plant architecture hypothesis
Plant quality
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| Resumo: |
ABSTRACT Sessile and host-specific herbivores, such as gall-inducing insects, are usually patchily distributed within the populations of their host plants, and it has been suggested that both inter- and intra-plant variation affect gall abundance, distribution and survivorship. Variation in plant traits, such as size and architecture, has been previously demonstrated as a determinant of gall distribution. We examined the influence of architectural complexity of the tropical plant Galianthe brasiliensis (Rubiaceae) on the abundance of the stem-galler Lopesia sp. (Diptera, Cecidomyiidae) along an elevation gradient where both insect and plant were distributed. A total of 120 plants were sampled along the gradient and more than 580 galls were counted, while plant architectural complexity was determined by a combination of height and branch ramification. Increased elevation did not influence plant complexity nor gall abundance (both P>0.05), but plant architectural complexity explained more than 60% of the variation in gall abundance along the gradient (R2=0.62, P<0.001). We suggest that the greater availability of meristematic tissues in more architecturally complex plants explains the results found, as this is a key resource for gall occurrence and establishment.
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| Tipo: |
Info:eu-repo/semantics/other
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000400670
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| Editor: |
Sociedade Botânica do Brasil
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| Relação: |
10.1590/0102-33062018abb0038
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| Formato: |
text/html
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| Fonte: |
Acta Botanica Brasilica v.32 n.4 2018
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| Direitos: |
info:eu-repo/semantics/openAccess
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