Estimation of predation rate and handling time of boll weevil larvae by Marava arachidis (Dermaptera: Labiidae) using different mathematical methods

Autor: J. G. Silva Neto, T. G. F. Silva, A. S. Salustino, E. L. Leite, K. G. Abreu, A. S. Silva, J. L. Batista, C. H. Brito, E. K. Araújo, B. A. P. Cândido, I. V. I. Silva, C. R. S. M. Viagem, I. M. Buenaventura Ramírez, D. F. Correia Neto, J. B. Malaquias
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Brazilian Journal of Biology, Vol 84 (2024)
Druh dokumentu: article
ISSN: 1678-4375
1519-6984
DOI: 10.1590/1519-6984.282251
Popis: Abstract Anthonomus grandis grandis (Coleoptera: Curculionidae) is a pest with a large potential for destruction in cotton crops, causing damage to the cotton reproductive structures. The earwig Marava arachidis (Dermaptera: Labiidae), is an important reference as a predator in several crops and being easy to rear in the laboratory. To analyze the potential biocontrol of M. arachidis of A. grandis grandis larvae, a study of predatory capacity was conducted using a functional response model. A. grandis grandis larvae were exposed to the predator at densities 1, 2, 4, 6, and 8 larvae (= prey/predator / Petri dish), with 30 replications at each density. Contact between the predator and the prey occurred for 24 hours; after this period, the level of predation of M. arachidis was assessed based on the proportion of preyed larvae. The linear logistic regression coefficient was used with a beta-binomial generalized linear model to determine the functional response. The negative signal of the linear coefficient and the goodness-of-fit tests revealed a quadratic or type II functional response, with the number of prey varying from 1.00 larva (density of 1 larva/predator) to 6.50 larvae (density of 8 larvae/predator). Therefore, the results of the present study demonstrate a high predatory capacity of M. arachidis on A. grandis grandis larvae.
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