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Weeds and their importance in sustaining the diversity of floral visiting insects in coffee crops Arvenses y su importancia en el sostenimiento de la diversidad de insectos visitantes florales del café

How to Cite
Maldonado-Cepeda, J., Gómez-Llano, J., Benavides Machado, P., Escobar, L. E., & Gil-Palacio, Z. (2023). Weeds and their importance in sustaining the diversity of floral visiting insects in coffee crops. Cenicafe Journal, 74(1), e74102. https://doi.org/10.38141/10778/74102

Dimensions
PlumX

Keywords
Abejas

Bidens pilosa

biodiversidad

Coffea arabica

café de Colombia

flores

Cenicafé

Bees

Bidens pilosa

biodiversity

Coffea arabica

Colombian Coffee

flowers

Cenicafé

Abelhas

Bidens pilosa

biodiversidade

Coffea arabica

café colombiano

flores

Cenicafé

Sectión
Articles
Juan Maldonado-Cepeda
Jesús Gómez-Llano
Pablo Benavides Machado
Luis Eduardo Escobar
Zulma Gil-Palacio

Summary

The objective of this research was to evaluate the importance of weeds in sustaining the diversity of insects that visit coffee flowers. For this purpose, two plots under integrated weed management (IWM) and two plots under excessive weed management (EWM) were selected. In each plot, insects visiting coffee flowers were collected and recorded on 30 trees at eight-minute intervals per tree, at three different times during one day. All samplings were conducted during two flowering events per year, over the course of two years, resulting in a total of 192 hours of observations. Subsequently, the insects were identified for each plot, and abundance, richness, and diversity were estimated for the orders q=1 and q=2. These values were compared using a least significant difference test at 5% significance level. Additionally, in the IWM plots, three transects were established, and insects visiting the weeds were collected using the same frequency and method as in the previous sampling, during periods when the coffee was not flowering. A total of 2,347 individuals and 163 species were recorded in the coffee flowers of the IWM plots, while 2,543 individuals and 162 species were collected in the EWM plots. In the weeds, 735 individuals and 171 species were recorded. The richness, abundance, and diversity values for the orders q=1 and q=2 were statistically similar between the plots. The weeds Bidens pilosa, Commelina difusa, Emilia sonchifolia, Hyptis atrorubens, and Galinsoga parviflora were the most visited by insects. The results of this study demonstrate a high diversity of floral visiting insect species in both the coffee crop and the weeds.

Juan Maldonado-Cepeda, Centro Nacional de Investigaciones de Café

Asistente de Investigación. Disciplina de Entomología, Cenicafé

Jesús Gómez-Llano, Centro Nacional de Investigaciones de Café

Asistente de Investigación. Disciplina de Entomología, Cenicafé

Pablo Benavides Machado, Centro Nacional de Investigaciones de Café

Investigador Científico III. Disciplina de Entomología, Cenicafé.

Luis Eduardo Escobar, Centro Nacional de Investigaciones de Café

Asistente de Investigación. Disciplina de Entomología, Cenicafé

Zulma Gil-Palacio, Centro Nacional de Investigaciones de Café

Investigador Científico II. Disciplina de Entomología, Cenicafé

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