A marsupial assemblage (Mammalia, Didelphimorphia) from the Quaternary of the Serra Da Capivara, State of Piauí, Brazil

Motta, Filipe Armando; Hadler, Patrícia; Cherem, Jorge José; Ribeiro, Ana María

doi:10.4072/rbp.2019.3.05

Cited by 4 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These three genera also differ in lower molar size, with Gracilinanus generally presenting larger molars than Cryptonanus and Monodelphis. The length of m1-m4 in a sample Gracilinanus microtarsus from Rio de Janeiro state (see 2.2 Analysis of pellets) varies from 6.12 to 6.44 mm, while specimens of Cryptonanus agricolai from Piauí state studied by Motta et al (2019) varied from 5.4 to 5.6 mm, and specimens of a sample of Monodelphis iheringi from Rio de Janeiro state varied from 5.47 to 5.84 mm. The specimen examined in this study presented small molars, with a m1-m4 length of 5.59 mm, which combined with the prominent entoconids confirms its identity as a representative of the genus Cryptonanus.…”

Section: Resultsmentioning

confidence: 99%

Small mammals in the diet of Barn Owls (Tyto furcata) in an urban area in Rio de Janeiro state, Brazil, with a new record of the dwarf mouse opossum (Cryptonanus)

et al. 2022

View full text Add to dashboard Cite

Several studies emphasize the use of owl pellets in small mammal inventories in natural areas harboring high richness of rare species, but few Brazilian Atlantic forest localities have been surveyed by this method. The present study documents the species composition and abundance of small mammals in the diet of Tyto furcata in an urban area of the municipality of Campos dos Goytacazes, Rio de Janeiro, Brazil, remarking on a new record of the dwarf mouse opossum genus Cryptonanus in the Atlantic forest. We analyzed 265 pellets regurgitated by a pair of T. furcata from November 2016 to September 2017 found in a nesting box. Analysis of the samples enabled finding a total of 596 individuals of four small mammal species. Mus musculus was predominant among the prey items (98.3%), while the native rodents Necromys lasiurus (1.3%) and Holochilus brasiliensis (0,17%) were much rarer. A single specimen of Cryptonanus sp. was identified among the diet items based on distinctive dental characters. The identification of this genus in the present study represents the second record in the state of Rio de Janeiro, and the sixth in the Atlantic Forest biome, suggesting that this marsupial occupies a wider ecological and biogeographic range. The present study underscores the relevance of owl pellets for small mammal surveys, even in urban and highly disturbed areas.

show abstract

Section: Resultsmentioning

confidence: 99%

Small mammals in the diet of Barn Owls (Tyto furcata) in an urban area in Rio de Janeiro state, Brazil, with a new record of the dwarf mouse opossum (Cryptonanus)

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Besides, other fossil species of Thylamys are recorded in the late Miocene of the Pampean Argentina (Buenos Aires and La Pampa provinces, T. pinei Goin, Montalvo andVisconti, 2000 andT. zetti Goin, 1997;Huayquerian SALMA;Goin, 1997;Goin et al, 2000;Verzi et al, 2008), as well as in lower Pliocene deposits of the Buenos Aires Province (T. contrerasi; Montehermosan SALMA; Goin, 1997;Prevosti et al, 2021), and Pleistocene/Holocene localities of Argentina and Brazil (Deschamps and Tonni, 1992;Hadler et al, 2009;Motta et al, 2019) Amazonia (TAR-31; ca. 13.0 Ma, 6°30'S).…”

Section: Paleobiogeographical Implicationsmentioning

confidence: 99%

Late middle Miocene Metatheria (Mammalia: Didelphimorphia and Paucituberculata) from Juan Guerra, San Martín Department, Peruvian Amazonia

Stutz

Abello

Marivaux

et al. 2022

Journal of South American Earth Sciences

Self Cite

View full text Add to dashboard Cite

“…During the last two decades, descriptions of numerous Quaternary small mammal assemblages have been published for the country (e.g. de Oliviera et al, 2013;Hadler et al, 2018;Motta et al, 2019;Neves et al, 2017Neves et al, , 2020. However, many of them are limited to taxonomic aspects because they lack, due to the nature of the deposits (e.g.…”

Section: Introductionmentioning

confidence: 99%

Forest stability during the Holocene in Santa Catarina, southern Brazil revealed by small mammals from Gruta do Presépio

Hadler,

Fernández,

Cherem

et al. 2023

The Holocene

Self Cite

View full text Add to dashboard Cite

Quaternary small mammals are important proxies for paleoenvironmental reconstructions. The Brazilian record, although famous and continuously growing, is hampered by poor chronological control due to the nature of most of the published assemblages. Here, we present a taphonomic analysis and paleoenvironmental reconstruction based on marsupials, bats, and rodents (480 remains) from the Gruta do Presépio archeological site (GPR, hereafter), Santa Catarina State, southern Brazil. The site is a rock shelter located in an Atlantic Forest biome, an important biodiversity hotspot. The GPR sedimentary sequence spans the Early Holocene (8330 ± 30 years 14C BP) to recent Historical time (after the arrival of Europeans). Most of the small mammal remains were deposited by strigiforms, although for the oldest units some strongly digested remains could indicate the activity of diurnal birds or carnivorous mammals. The GPR small mammal assemblages include 28 taxa (five marsupials, nine chiropterans, and 14 rodents). Most of them indicate the occurrence and persistence of forested environments during the Holocene around the site, which is in overall agreement with regional palynological data. A major community change, implying the increment of rodents allied to disturbed ecosystems (e.g. Akodon, Oligoryzomys, Mus), is very recent and reflects human forest clearance as a signature of the Anthropocene.

show abstract

A marsupial assemblage (Mammalia, Didelphimorphia) from the Quaternary of the Serra Da Capivara, State of Piauí, Brazil

Cited by 4 publications

References 0 publications

Small mammals in the diet of Barn Owls (Tyto furcata) in an urban area in Rio de Janeiro state, Brazil, with a new record of the dwarf mouse opossum (Cryptonanus)

Small mammals in the diet of Barn Owls (Tyto furcata) in an urban area in Rio de Janeiro state, Brazil, with a new record of the dwarf mouse opossum (Cryptonanus)

Late middle Miocene Metatheria (Mammalia: Didelphimorphia and Paucituberculata) from Juan Guerra, San Martín Department, Peruvian Amazonia

Forest stability during the Holocene in Santa Catarina, southern Brazil revealed by small mammals from Gruta do Presépio

Contact Info

Product

Resources

About