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Natural infection and diversity of hemotropic mycoplasmas in free-ranging Geoffroy's cat (Leopardus geoffroyi) and margay cat (Leopardus wiedii) populations in Southern Brazil.

Vet Microbiol

January 2025

Laboratório de Protozoologia e Rickettsioses Vetoriais (ProtozooVet), Faculdade de Veterinária (FAVET), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil. Electronic address:

Hemoplasma infection significantly impacts felines health, yet there is a research gap regarding free-ranging wild small felids. Therefore, this study aimed to investigate the occurrence of hemoplasma in Leopardus geoffroyi and Leopardus wiedii in southern Brazil. For this purpose, we conducted molecular research for Mycoplasma spp.

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Shared Pheromone Compounds in Neotropical Rice Stink Bugs: The Role of Zingiberenol and Sesquipiperitol.

J Chem Ecol

January 2025

Embrapa Recursos Genéticos e Biotecnologia, Laboratório de Semioquímicos, Brasília, DF, 70297-400, Brazil.

The small black stem bug, Paratibraca (= Glyphepomis) spinosa (Campos and Grazia 1998), is a rice pest in Brazil and is part of a complex of stink bugs that includes Oebalus poecilus (Dallas) and Tibraca limbativentris Stål. Together, these pentatomid species pose a serious threat to rice crops throughout South America. In this study, we identified the sex pheromone of P.

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Parasitic infections in non-human primates (NHPs) kept ex situ can be caused by zoonotic protists like and . In Brazil, little is known about these infections in neotropical species. This study aimed to identify Amoebozoa and Ciliophora groups in fecal samples through in vitro isolation and molecular analysis, mapping their distribution in Brazil.

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Habitat fragmentation and land use changes threaten neotropical habitats and alter patterns of diversity at forest edges. Like other arthropod assemblages, neotropical fruit-feeding butterfly communities show strong vertical stratification within forests, with some recent work showing its potential role in speciation. At forest edges, species considered to be forest canopy specialists have been observed descending to the forest understory, with the similarity in light conditions between the canopy and understory strata at edges hypothesized to be responsible for this phenomenon.

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Cytogenomics of (Hymenoptera: Apidae) and the Sharing of a Satellite DNA Family in Several Neotropical Meliponini Genera.

Genes (Basel)

January 2025

Laboratório de Citogenética de Insetos, Departamento de Biologia Geral, Universidade Federal de Viçosa, Campus Universitário, Viçosa 36570-900, Minas Gerais, Brazil.

Background/objectives: A striking feature of the karyotypes of stingless bees is the large amount of heterochromatin present in most species. Cytogenomic studies performed in some Meliponini species have suggested that evolutionary events related to the diversification and amplification of satellite DNA families in the heterochromatin may reflect the structuring of phylogenetic clades in this tribe. In this study, we performed a genomic analysis in to characterize different satDNA families in its genome.

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