Water content, fibres, and herbivory in leaves of two distinct and adjacent tree communities of the Brazilian Atlantic Forest

ABSTRACT The aims of the present study were to verify whether plants from Mussununga differ from those of Mata Alta in relation to herbivory, water content, and fibres, and to test whether plants with lower leaf water content and higher fibres are less attacked by chewing insects. The results indica...

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Veröffentlicht in:Hoehnea 2017-03, Vol.44 (1), p.103-110
Hauptverfasser: Nascimento, Aline Alves do, Menezes, Luis Fernando Tavares de, Nascimento, Marcelo Trindade
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Sprache:eng
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Zusammenfassung:ABSTRACT The aims of the present study were to verify whether plants from Mussununga differ from those of Mata Alta in relation to herbivory, water content, and fibres, and to test whether plants with lower leaf water content and higher fibres are less attacked by chewing insects. The results indicated that leaf herbivory percentages and fibres were similar between the two communities, although individuals from Mata Alta showed higher leaf water content than individuals from Mussununga. Thus, the herbivory patterns found for these tree communities do not seem to not be influenced by water content and fibres. Other factors (e.g., chemical defenses and/or herbivores) may be acting as main drivers. RESUMO Os objetivos do estudo foram avaliar se plantas de duas comunidades arbóreas distintas e adjacentes da Mata Atlântica (Mata Alta e Mussununga) diferem em relação à herbivoria e se plantas com maior conteúdo de água ou menor concentração de fibras nas folhas sofrem mais herbivoria. Os resultados indicaram que as duas comunidades estudadas não diferem quanto à porcentagem de herbivoria foliar e fibras, embora indivíduos da Mata Alta apresentem maiores porcentagens de água em suas folhas que indivíduos da Mussununga. Desta forma, o padrão de herbivoria encontrado para as duas comunidades arbóreas parece não ser influenciado pela concentração de fibra e conteúdo de água. Outros fatores (i.e. defesas químicas e/ou herbívoros) podem estar atuando como principais agentes.
ISSN:2236-8906
2236-8906
DOI:10.1590/2236-8906-43/2016