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Influência Do Tamanho Da Fonte Alimentar No Comportamento De Forrageamento De \Textit{Nasutitermes Corniger} (Termitidae)

Authors: Gazal, Vinicius; Souza, Thiago Sampaio; Fernandes, Vinicius José; Aguiar-Menezes, Elen de Lima;

Influência Do Tamanho Da Fonte Alimentar No Comportamento De Forrageamento De \Textit{Nasutitermes Corniger} (Termitidae)

Abstract

O tamanho da fonte alimentar pode modular, em algumas espécies de cupins subterrâneos e de madeira seca, o forrageamento de operários no substrato alimentar. Neste trabalho procurou-se determinar se o tamanho da fonte alimentar influencia no forrageamento do cupim arborícola \textit{Nasutitermes corniger}. Para isso, madeiras de \textit{Eucalyptus grandis} (Eucalipto) de distintos tamanhos foram colocadas na arena de forrageamento de ninhos de \textit{N.corniger} mantidos em laboratório. Assim, as madeiras foram disponibilizadas, simultaneamente, aos cupins em três tamanhos: 1) 5,0 cm x 2,5 cm x 2,0 cm; 2) 10,0 cm x 2,5 cm x 2,0 cm; e 3) 15,0 cm x 2,5 cm x 2,0 cm (n = 20). Nos testes observou-se a ocorrência de recrutamento e quantificou-se o número de cupins recrutados e o número de operários consumindo cada quantidade de madeira. Os testes tiveram duração de uma hora. A ocorrência de recrutamento em massa de operários foi maior na madeira de 10 cm comprimento (13/20), do que nas de 5 cm (7/20) e 15 cm (6/20). O número total de cupins recrutados para a madeira de 10 cm (183,4±6,2) foi maior do que para a de 5 cm (73,0±8,6) (F2,48 = 3,3; g.l.=2; p<0,05). Similarmente, o número de operários consumindo a madeira de 10 cm (144,7±4,9) foi maior do que na de 5 cm (54,7±7,0) (F2,48 = 3,6; g.l.=2; p< 0,05). Portanto, estes resultados permitem afirmar que o tamanho da fonte alimentar modula o forrageamento de \textit{N.corniger}, com preferência de exploração por madeiras de tamanho mediano. Apoio: CAPES, UFRRJ.

Keywords

eucalipto, térmitas, madeira, comprimento, preferência

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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