Impact of environmental changes on the behavioral diversity of the Odonata (Insecta) in the Amazon
Bethânia Oliveira de Resende, Victor Rennan Santos Ferreira, Leandro Schlemmer Brasil, Lenize Batista Calvão, Thiago Pereira Mendes, Fernando Geraldo de Carvalho, Cristian Camilo Mendoza‐Penagos, Rafael Costa Bastos, Joás Silva Brito, José Max Barbosa de Oliveira, Karina Dias‐Silva, Ana Luiza‐Andrade, Rhainer Guillermo Nascimento Ferreira, Adolfo Cordero‐Rivera, Leandro Juen
Abstract
The odonates are insects that have a wide range of reproductive, ritualized territorial, and aggressive behaviors. Changes in behavior are the first response of most odonate species to environmental alterations. In this context, the primary objective of the present study was to assess the effects of environmental alterations resulting from shifts in land use on different aspects of the behavioral diversity of adult odonates. Fieldwork was conducted at 92 low-order streams in two different regions of the Brazilian Amazon. To address our main objective, we measured 29 abiotic variables at each stream, together with five morphological and five behavioral traits of the resident odonates. The results indicate a loss of behaviors at sites impacted by anthropogenic changes, as well as variation in some morphological/behavioral traits under specific environmental conditions. We highlight the importance of considering behavioral traits in the development of conservation strategies, given that species with a unique behavioral repertoire may suffer specific types of extinction pressure.