A new species of Cerradomys (Mammalia: Rodentia: Cricetidae) from Central Brazil, with remarks on the taxonomy of the genus

Bonvicino, Cibele Rodrigues; Casado, Flávia; Weksler, Marcelo

doi:10.1590/s1984-46702014000600002

Cited by 18 publications

(20 citation statements)

References 17 publications

(25 reference statements)

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“…For instance, for many years cytogenetic information indicated that the previous “Oryzomys subflavus” could, in fact, be more than one species, since nine different karyotypes were attributed to a single taxonomic entity (Maia and Hulak 1981, Almeida and Yonenaga-Yassuda 1985, Svartman and Almeida 1992, Silva 1994). Nowadays, after interdisciplinary studies with morphology and molecular phylogeny, it is possible to recognize eight species (Weksler et al 2006, Percequillo et al 2008, Tavares et al 2011, Bonvicino et al 2014). Moreover, for a long time Nectomys was represented by only one species in Brazil, with two diploid numbers (2n = 52 + 1 to 3 Bs and 2n = 56 + 1 to 3 Bs).…”

Section: Discussionmentioning

confidence: 99%

Advances in cytogenetics of Brazilian rodents: cytotaxonomy, chromosome evolution and new karyotypic data

Di-Nizo¹,

Banci²,

Sato-Kuwabara³

et al. 2017

CCG

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Rodents constitute one of the most diversified mammalian orders. Due to the morphological similarity in many of the groups, their taxonomy is controversial. Karyotype information proved to be an important tool for distinguishing some species because some of them are species-specific. Additionally, rodents can be an excellent model for chromosome evolution studies since many rearrangements have been described in this group.This work brings a review of cytogenetic data of Brazilian rodents, with information about diploid and fundamental numbers, polymorphisms, and geographical distribution. We point out that, even with the recent efforts on cytogenetic studies in this group, many species lack karyotypic data. Moreover, we describe for the first time the karyotype of Carterodon sulcidens (Lund, 1838) (Family Echimyidae), a new fundamental number for an undescribed species of Neacomys Thomas, 1900 (Family Cricetidae, Subfamily Sigmodontinae), and illustrate the karyotype of a Brazilian specimen of Mus musculus Linnaeus, 1758 (Family Muridae). This review compiles the cytogenetic data on Brazilian rodents reported in the last three decades, after the last revision published in 1984, including synonyms, chromosomal variations, and geographic distribution. Additionally, it also reinforces that Brazilian biodiversity is still poorly known, considering the new data reported here.

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Section: Discussionmentioning

confidence: 99%

Advances in cytogenetics of Brazilian rodents: cytotaxonomy, chromosome evolution and new karyotypic data

Di-Nizo¹,

Banci²,

Sato-Kuwabara³

et al. 2017

CCG

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“…O Brasil está entre os países mais ricos em espécies de mamíferos, com 701 espécies distribuídas em 243 gêneros, 50 famílias e 12 ordens (Paglia et al 2012). Este número cresce a cada ano devido à descrição de novas espécies, revisões e revalidações taxonômicas (ex: Feijó & Langguth 2013, Trigo et al 2013, Bonvicino et al 2014, Hrbek et al 2014, Marsh 2014.…”

Section: Introductionunclassified

Primeira Avaliação Do Status De Conservação Dos Mamíferos Do Estado Da Bahia, Brasil

Cassano¹,

Almeida-Rocha²,

Alvarez³

et al. 2017

Oecol. Austr.

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foram listadas como as principais ameaças para os mamíferos da Bahia. Trinta e três das 45 espécies ameaçadas ou 'Quase Ameaçadas' tiveram registros em 21 Unidades de Conservação (UC) de proteção integral, localizadas inteira ou parcialmente na Bahia, e 32 das 45 espécies são cobertas por Planos de Ação Nacional (PAN). A lista de mamíferos ameaçados de extinção na Bahia inclui percentual elevado de carnívoros, mamíferos aquáticos, primatas e ungulados, seguindo o padrão observado em listas vermelhas. O alto número de espécies 'Dados Insuficientes' e a concentração de esforços de pesquisa em regiões restritas do estado são alarmantes e sugerem ausência de planejamento e baixa aplicação de recursos para descrever a biodiversidade, resultando em um conhecimento limitado sobre as populações de mamíferos e suas distribuições geográficas. A Bahia ocupa uma posição de destaque para a conservação de alguns taxa cuja distribuição é total ou majoritariamente incluída no estado. Os biomas Caatinga, Cerrado e Marinho carecem de UC de proteção integral para representar sua mastofauna característica. A publicação da lista de mamíferos ameaçados de extinção, investimentos para a criação e proteção efetiva de UC existentes e outras ações previstas em PAN são instrumentos complementares que devem ser fomentados por instituições governamentais e não-governamentais no intuito de proteger a rica diversidade de mamíferos da Bahia. Palavras-chave: conservação de biodiversidade; espécies ameaçadas; Mammalia. ABSTRACT-FIRST EVALUATION OF MAMMALS CONSERVATION STATUS IN BAHIA, BRAZIL Endangered species lists identify real and potential taxa extinction risks at global and regional scales, supporting decision-making processes and public policy. The construction of the first list of threatened species in Bahia state started in 2013. This paper describes the evaluation of conservation status of mammals in Bahia and its main results. The list was built in three phases: (1) preparatory, (2) evaluation and (3) final (validation). One species was considered regionally extinct, 41 were included in categories of threat ('Critically Endangered', 'Endangered' or 'Vulnerable') and four were considered 'Near Threatened'. Moreover, 51 species were classified as 'Data Deficient'. Habitat loss and fragmentation, hunting and roadkill were listed as the main threats for mammals in Bahia state. Thirty three out of 45 threatened or 'Near Threatened' species were recorded in 21 strictly protected areas (PA), completely or partially located in Bahia, and 32 of the 45 species are included in National Action Plans (PAN). The list of threatened mammals of Bahia includes a high percentage of carnivores, aquatic mammals, primates and ungulates, following the pattern of red lists. The high number of 'Data Deficient' species and research effort concentration in relatively small regions along the state are alarming and suggest the absence of planning and insufficient resource destination for biodiversity description, resulting in a limited knowledge on mammal populatio...

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“…D. aurita has a preference for forest interiors (Ribeiro et al, 2016), however, this species can also be found at the edge of wetlands and mangroves, as well as in urbanized areas (Graipel & Santos-Filho, 2006). C. subflavus is mainly associated to forest formations that occur within the Cerrado (Bonvicino et al, 2014), however together with C. tener and N. lasiurus favor open areas (Percequillo et al, 2008;Vivo & Carmignotto, 2015). In this study, C. agricolai was more abundant in Eucalyptus stands, showing that this marsupial can occupy different vegetation strata and cross different types of habitat between fragments of forest and that monoculture Eucalyptus are permeable to some species of marsupials (Passamani & Fernandez, 2011).…”

Section: Discussionmentioning

confidence: 99%

Use of silvicultural landscapes by small mammals in the state of São Paulo, Brazil

Uribe¹,

Cristina²

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Use of silvicultural landscapes by small mammals in the state of São Paulo, Brazil Studies in agricultural landscapes have shown that anthropogenic environments may be relevant to wildlife species. Given the extent of these areas efficient research methods are needed to assess its ecological value in terms of local diversity, such as the use of biological indicators. The main goal here was to evaluate the possible relationship between the native vegetation biomass and diversity of small mammals in a silvicultural landscape of São Paulo. The study was developed at Fazenda Três Lagoas, which is part of the "Programa de Pesquisa em Biodiversidade" (PPBio), at Angatuba municipality, State of São Paulo, and lasted nine months. From May 2015 to March 2016 nine sampling campaigns were carried over a grid of 15 pitfall traps, five in Eucalyptus plantations, five in native vegetation and five in abandoned pastures. In the Chapter 1 the distribution and abundance patterns of small mammals on a silvicultural landcape during the early second cycle of Eucalyptus plantation in Southeastern Brazil was evaluated. A total of 672 individuals from 15 species of the orders Rodentia (9 spp.) and Didelphimorphia (6 spp.) were captured and five new species were detected in the study area in comparison to the first cycle. Although these species are predominantly generalists, there were differences in the abundance of small mammals in the three environments. The presence of native vegetation patches associated with riparian areas and abandoned pastures and the role of small mammals as a food resource for predators on a trophic structure, gives a certain conservation value to silvicultural landscapes in southeastern Brazil. In the Chapter 2 the relationship between landscape metrics and patterns of diversity, distribution and abundance of small mammals in a silvicultural landscape were evaluated. The species richness and family diversity of small mammals have been predominantly determined by the percentage of native vegetation. However, the abundance of small mammals can be determined by an indirect estimate of the native vegetation biomass (i.e., NDVI), which can be considered a 3D landscape metric as it is related to volume. Therefore, to succeed in assessing the value of agricultural landscape, future studies should consider landscape context, as well as the landscape metrics associated with geospatial data analysis and the distinct responses of species.

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A new species of Cerradomys (Mammalia: Rodentia: Cricetidae) from Central Brazil, with remarks on the taxonomy of the genus

Cited by 18 publications

References 17 publications

Advances in cytogenetics of Brazilian rodents: cytotaxonomy, chromosome evolution and new karyotypic data

Advances in cytogenetics of Brazilian rodents: cytotaxonomy, chromosome evolution and new karyotypic data

Primeira Avaliação Do Status De Conservação Dos Mamíferos Do Estado Da Bahia, Brasil

Use of silvicultural landscapes by small mammals in the state of São Paulo, Brazil

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