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Effects of shade cocoa plantation on artificial fruit consumption by birds in two contrasting landscapes in Southern Bahia, Brazil

Published online by Cambridge University Press:  04 June 2013

Jamille de Assis Bomfim ,
Roberta Mariano Silva ,
Virgínia de Fernandes Souza ,
Edyla Ribeiro de Andrade  and
Eliana Cazetta
Jamille de Assis Bomfim*
Affiliation:
Programa de Pós-Graduação em Ecologia e Conservação da Biodiversidade, Universidade Estadual de Santa Cruz., Rodovia Ilhéus-Itabuna, km 16, Ilhéus, Bahia, Brasil, CEP 45662-900
Roberta Mariano Silva
Affiliation:
Programa de Pós-Graduação em Ecologia e Conservação da Biodiversidade, Universidade Estadual de Santa Cruz., Rodovia Ilhéus-Itabuna, km 16, Ilhéus, Bahia, Brasil, CEP 45662-900
Virgínia de Fernandes Souza
Affiliation:
Programa de Pós-Graduação em Ecologia e Conservação da Biodiversidade, Universidade Estadual de Santa Cruz., Rodovia Ilhéus-Itabuna, km 16, Ilhéus, Bahia, Brasil, CEP 45662-900
Edyla Ribeiro de Andrade
Affiliation:
Programa de Pós-Graduação em Ecologia e Conservação da Biodiversidade, Universidade Estadual de Santa Cruz., Rodovia Ilhéus-Itabuna, km 16, Ilhéus, Bahia, Brasil, CEP 45662-900
Eliana Cazetta
Affiliation:
Programa de Pós-Graduação em Ecologia e Conservação da Biodiversidade, Universidade Estadual de Santa Cruz., Rodovia Ilhéus-Itabuna, km 16, Ilhéus, Bahia, Brasil, CEP 45662-900 Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Rodovia Ilhéus-Itabuna, km 16, Ilhéus, Bahia, Brasil, CEP 45662-900
*
1Corresponding author. Email: [email protected]
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Abstract:

To investigate the influence of forests and agroforestry systems on fruit consumption by birds, we studied two landscapes, one covered predominantly with forests and the other dominated by traditional shade cocoa plantations. In each landscape, we sampled three forest fragments and three shade cocoa plantations. We placed 15 artificial fruits in 25, 1–2-m-tall shrubs spaced every 50 m and evaluated the detection and consumption of fruits after 72 h. We used hemispherical photographs positioned above each fruit station to evaluate canopy openness. We found a statistically significant difference in fruit consumption between landscapes, which means that more fruits were detected and consumed in the forest-dominated landscape. However, forests and shade cocoa plantations within each landscape exhibited similar fruit consumption. Canopy openness was similar between the landscapes, however, the cocoa plantations exhibited greater canopy openness than forests. The results of this study reinforce the importance of the presence of forests in the agricultural landscape. Thus, to evaluate the capacity of agroforest to protect species and maintain ecological interactions it is also necessary to consider the landscape context.

Keywords

agroforestry systemanthropogenic disturbanceavifaunaforest coverfrugivory
Type
Research Article
Information
Journal of Tropical Ecology , Volume 29 , Issue 4 , July 2013 , pp. 313 - 319
Copyright
Copyright © Cambridge University Press 2013 

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