A Survey of Small Mammals in the Atlantic Forest of the Northwestern Region of Rio De Janeiro State

Gonçalves-Oliveira, Jonathan; Teixeira, Bernardo Rodrigues; Olifiers, Natalie; Lucio, Camila dos Santos; Riski, Letícia Lutke; Costa-Neto, Sócrates Fraga da; Lemos, Elba Regina Sampaio de; Bonvicino, Cibele Rodrigues; D’Andrea, Paulo Sérgio

doi:10.4257/oeco.2016.2004.08

Cited by 5 publications

(3 citation statements)

References 21 publications

(31 reference statements)

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“…The higher abundance of the rodents O. nigripes and A. cursor in areas with greater anthropic influence (peridomicile), also confirms the opportunistic nature of these species in relation to habitat occupancy, as previously observed in disturbed regions and along forest borders (Olifiers et al 2005, Vaz et al 2007, Geise 2012, Cardoso et al 2016, Gonçalves et al 2016. However, A. cursor showed more association with habitat variables, such as a close vegetation near the ground, which can provide shelter, protection against predators, and food resources (Dalmagro and Vieira 2005, Lima et al 2010, Melo et al 2013), a higher vegetation density in the understory and an open canopy, which are characteristic of open areas (Cirelli and Penteado-Dias 2003).…”

Section: Discussionsupporting

confidence: 65%

Community structure and population dynamics of small mammals in an urban-sylvatic interface area in Rio de Janeiro, Brazil

Gentile¹,

Cardoso²,

Costa-Neto³

et al. 2018

Zoologia

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ABSTRACT. The Atlantic Forest is one of the most disturbed Brazilian biomes, with 183 out of 298 species of mammals occurring in the state of Rio de Janeiro. In this study, we aimed to characterize the diversity, community structure, and habitat use of small mammals in the FIOCRUZ Atlantic Forest Campus (CFMA), including areas of Pedra Branca State Park (PBSP, subunit Pau da Fome), state of Rio de Janeiro. We also compared species diversity and composition between two moments 15 years apart (2001 and 2012-2015) and analyzed the population dynamics of the marsupial Didelphis aurita (Wied-Neuwied, 1826). Small mammal captures were made in different habitats: sylvatic-urban interface areas near human dwellings, disturbed forest, and preserved forest areas. Five marsupial species and four rodent species were captured in both periods. There was a reduction in species richness and β diversity between the two periods, indicating that disturbances in the environment over the years may have affected the small mammal community structure. The most altered environment showed the greatest species richness and abundance, while the forest areas showed the smallest values, which may be explained by the loss of mammal species, mainly specialist species in forested areas. We identified three groups of species according to habitat preferences: one related to environments with a higher density of vegetation in upper strata -Marmosa paraguayana (Tate, 1931) and Monodelphis americana (Müller, 1776), another related to a higher density in lower forest strata -Akodon cursor (Winge, 1887), and another with no association with the investigated habitat variables -D. aurita and Oligoryzomys nigripes (Olfers, 1818). The small mammal community structure showed a low level of nestedness in both sampling periods. This study is the first report to evaluate the community structure of small mammals in the sylvatic-urban interface area of Pedra Branca State Park, the largest forest reserve within an urban area in Brazil. The surveys indicate that the small mammal diversity was low in both sampling periods and in both areas, and a species loss in the Pau da Fome locality was observed, despite it is a conservation unit. The greater species abundance and richness in the most disturbed areas suggest an increase of factors favoring the occurrence of synanthropic and opportunistic species.

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Section: Discussionsupporting

confidence: 65%

Community structure and population dynamics of small mammals in an urban-sylvatic interface area in Rio de Janeiro, Brazil

Gentile¹,

Cardoso²,

Costa-Neto³

et al. 2018

Zoologia

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“…In Brazil, the occurrence of Bartonella in wild rodents was only confirmed by PCR in 2015, in samples obtained from seven species of sigmodontine rodents from the Cerrado region of central Brazil ( Favacho et al, 2015 ). Since this study, Bartonella has been recorded in wild rodents from many Brazilian localities, in all the country's biomes ( de Sousa et al, 2018 ; Gonçalves et al, 2016a ; Rozental et al, 2017 ). Eleven species of bat have also tested positive for Bartonella by PCR ( André et al, 2019 ; Ferreira et al, 2018 ; Ikeda et al, 2017 ), including animals in protected areas in the Amazon and Cerrado biomes, and the Atlantic Forest region of the states of Rio de Janeiro (Pedra Branca State Park), Bahia (APA do Pratigi), and Santa Catarina (Serra do Tabuleiro State Park).…”

Section: Introductionmentioning

confidence: 99%

Investigation of Bartonella spp. in brazilian mammals with emphasis on rodents and bats from the Atlantic Forest

Gonçalves-Oliveira

Rozental

Guterres

et al. 2020

International Journal for Parasitology: Parasites and Wildlife

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The Bartonella species are zoonotic agents that infect mammals and are transmitted by arthropod vectors. Approximately 18 distinct genotypes cause diseases in humans, and may be spread by both domestic and wild animals. In Brazil, Bartonella genotypes have been identified in several species of wild mammals, and in the present study, we analyzed samples from non-human primates (marmosets), marsupials, rodents, and bats, and compared them with the genotypes described in mammals from Brazil, to examine the distribution of Bartonella genotypes in two impacted areas of Rio de Janeiro state, in southeastern Brazil. We used polymerase chain reaction (PCR) methods to detect the Bartonella DNA using partial sequences of the gltA, ftsZ , and groEL genes. We generated Bayesian inference and maximum likelihood trees to characterize the positive PCR samples and infer the phylogenetic relationships of the genotypes. A total of 276 animals were captured, including 110 bats, 91 rodents, 38 marsupials, and 37 marmosets. The DNA of Bartonella was amplified from tissue samples collected from 12 (4.34%) of the animals, including eight rodents – Akodon cursor (5/44) and Nectomys squamipes (3/27) – and four bats, Artibeus lituratus (3/58) and Carollia perspicillata (1/15). We identified Bartonella genotypes closely related to those described in previous studies, as well as new genotypes in both the rodent and the bat samples. Considering the high diversity of the Bartonella genotypes and hosts identified in the present study, further research is needed to better understand the relationships between the different Bartonella genotypes and their vectors and host species. The presence of Bartonella in the wild rodents and bats from the study area indicates that the local human populations may be at risk of infection by Bartonella due to the spillover of these strains from the wild environment to domestic and peri-domestic environments.

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“…In this effort, we focused on the H. suramericanum RJ population which seems to be endemic to the Brazilian Atlantic Forest. This biome is a biodiversity hotspot for plants [39], birds (e.g., spinetails) [40], and mammals [41]. Nonetheless, no effort has determined whether the Atlantic Forest also harbors more fungal pathogens.…”

Section: Strong Population Structure In H Suramericanum In South Americamentioning

confidence: 99%

Genomic Diversity Analysis Reveals a Strong Population Structure in Histoplasma capsulatum LAmA (Histoplasma suramericanum)

Almeida-Silva

Teixeira

Matute

et al. 2021

JoF

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Histoplasmosis is a severe mycotic disease affecting thousands of immunocompetent and immunocompromised individuals with high incidence in Latin America, where the disease agents are Histoplasma capsulatum and Histoplasma suramericanum. In this work, we used whole-genome sequencing to infer the species diversity and the population structure of H. suramericanum in South America. We find evidence for strong population structure and little admixture within the species. Genome-level phylogenetic trees indicate the existence of at least three different discrete populations. We recovered the existence of a previously identified population, LAmB, and confirm that it is highly differentiated along the whole genome. We also find that H. suramericanum is composed of two populations, one in Northern South America, and another in the southern portion of the continent. Moreover, one of the lineages from the southern population is endemic to Rio de Janeiro and there was no association with clinical data and species isolated from patients with histoplasmosis. Our results point out the need to characterize the symptomatology of histoplasmosis caused by different species and lineages of Histoplasma spp.

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A Survey of Small Mammals in the Atlantic Forest of the Northwestern Region of Rio De Janeiro State

Cited by 5 publications

References 21 publications

Community structure and population dynamics of small mammals in an urban-sylvatic interface area in Rio de Janeiro, Brazil

Community structure and population dynamics of small mammals in an urban-sylvatic interface area in Rio de Janeiro, Brazil

Investigation of Bartonella spp. in brazilian mammals with emphasis on rodents and bats from the Atlantic Forest

Genomic Diversity Analysis Reveals a Strong Population Structure in Histoplasma capsulatum LAmA (Histoplasma suramericanum)

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