Navegando por Autor "Alexandre, Rafaela Jemely Rodrigues"

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Artigo
Bat flies (Diptera: Streblidae) of Phyllostominae and Stenodermatinae (Chiroptera: Phyllostomidae) bats from cocoa and natural areas of Amazonia
(2023-11-12) França, Júlia de Oliveira; Alexandre, Rafaela Jemely Rodrigues; Correia, Letícia Lima; Souza, Loyriane Moura; Graciolli, Gustavo; Aguiar, Ludmilla Moura de Souza; Vieira, Thiago Bernardi
Streblidae and Nycteribiidae are ectoparasitic flies exclusive to bats, with an estimated diversity of over 100 species in Brazil. Its distribution and abundance may be influenced by host’s shelter, geographic distribution, behavior, and size. Bat species respond differently to environmental changes, such as changing land use and land cover for cocoa production in the eastern Amazon. We sought to investigate the community of ectoparasite flies (Diptera: Streblidae) on Phyllostominae and Stenodermatinae (Chiroptera: Phyllostomidae) bats and the parasite-host interactions in cacao plantations and natural areas in the Brazilian Amazon. Twenty-two bats were collected, reaching a total of 54 flies. The observed richness was 15 (estimated in 24) species, with Trichobius dugesioides being the most abundant. The cacao plantations showed greater richness, eight species more than the natural ones, however, showing the absence of a specific distribution pattern for each area. This result may be because human interference in cocoa areas are barely perceptible, at least for the bats studied. In addition, the adoption of cabruca-type cocoa plantations can influence the result, as previously shown in the literature.
Artigo
Chiropterofauna (Mammalia: Chiroptera) from the Altamiro de Moura Pacheco State Park, Goiás, Brazil
(2024-01-09) Carvalho, Erica Santos de; Pena, Simone Almeida; Alexandre, Rafaela Jemely Rodrigues; Dias-Silva, Karina; Bastos, Rogério Pereira; Oprea, Monik; Brito, Daniel; Silva, Jessica Conceição da; Vieira, Thiago Bernardi
The Brazilian Cerrado is undergoing important changes. It is estimated that 70% of its natural area has converted to human use. The loss and fragmentation of natural habitats is considered the main cause of species loss in ecosystems. However, the lack of knowledge of biodiversity makes it difficult to design effective conservation measures. This article presents a list and an estimate of the richness of bats in the Parque Estadual Altamiro de Moura Pacheco (PEAMP) in Goiás. All collected bats belong to the Phyllostomidae family, with Carollia perspicillata (67%) and Artibeus planirostris (18%) representing 86% of the captured individuals.
Artigo
Weak congruence between biological assemblages of streams and their relationship with the environmental gradient in the Cerrado-Amazon transition area, Brazil
(2023-03-31) Alexandre, Rafaela Jemely Rodrigues; Montag, Luciano Fogaça de Assis; Dias-Silva, Karina; Brasil, Leandro Schlemmer; Maracahipes-Santos, Leonardo; Batist, Joana Darc; Vieira, Thiago Bernardi
Congruence between taxa is the agreement between groups, it is used to find indicator taxa, being a quick and effective way to assess biodiversity. The objective of this work was to evaluate the congruence between fish assemblages, Heteroptera, Odonata in streams of the Amazon-Cerrado transition area. The study took place in 24 streams in the transition between the Cerrado and Amazon biomes, Brazil. The analysis results showed weak congruence between Odonata and Heteroptera for the two data sets. Disagree Odonata and fish showed weak congruence but signicant with abundance data, and with incidence data, the congruence was not significant. A similar result was obtained when analyzing fish and Heteroptera, which were not congruent with any of the datasets used. These findings were repeated when analyzing the suborder Zygoptera separately, instead of Odonata. The variance partition test, with abundance data, showed that both environmental variables and space are responsible for structuring the Heteroptera community, different fish, Odonata and Zygoptera did not respond to any of the analyzed variables, with incidence data no group showed a relationship with the environmental and spatial variables analyzed. The pRDA, with abundance data, confirmed the relationship of the Heteroptera assemblage with environmental and spatial variables, however, the other assemblages did not present significant results. With the incidence data, it was not significant for all assemblages. The weak congruence between the different groups can due to the different responses to the same environmental gradient, which was confirmed by the variance partition test.