Rio de Janeiro, Brazil
Rio de Janeiro, Brazil

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Moratelli R.,Campus Fiocruz da Mata Atlantica | Peracchi A.L.,Federal Rural University of Rio de Janeiro | De Oliveira J.A.,Federal University of Rio de Janeiro
Zootaxa | Year: 2011

Twelve species are recognized in the South American bat genus Myotis Kaup (Vespertilionidae, Myotinae), with several nominal forms currently regarded as synonyms, among them Myotis guaycuru Proenca, 1943. Its holotype, so far the only specimen assigned to the species, has not been examined in recent taxonomic reviews. To address the taxonomic status of M. guaycuru, we located and redescribed its holotype and compared it to representatives and/or descriptions of all South American species in the genus. Qualitative traits, namely the plagiopatagium attached at ankles, the short and wooly fur and the lingually displaced P3, unambiguously assign the holotype of M. guaycuru to Myotis simus Thomas (1901). The analysis of cranial variation and pelage color across a wide geographical range of M. simus reveals morphometric and morphological discontinuity between Bolivian and Amazonian/Peruvian samples, the latter including topotypes of M. simus. The holotype of M. guaycuru was found to be morphometrically and morphologically more similar to these Amazonian samples than to the geographically nearer Bolivian sample, preventing the use of this nominal form to refer to the Bolivian population if its distinction suggested by morphometric analyses is confirmed by the analyses of other character systems. Copyright © 2011 Magnolia Press.


Novaes R.L.M.,Campus Fiocruz da Mata Atlantica | Laurindo R.D.S.,Federal University of Lavras | Souza R.D.F.,State University of Rio de Janeiro
Studies on Neotropical Fauna and Environment | Year: 2015

The Caatinga biome is restricted to Brazil, and its bat fauna is among the least studied in South America, with scarce information on species occurrence, distributions, and structure of assemblages. Moreover, most of the information available on bats from this biome comes from relicts of other ecosystem formations. From 2010 to 2012 we conducted bat surveys in different sites along the Serra da Jitirana, a xerophytic locality in the Caatinga of Piauí state, northeastern Brazil. We recorded 20 species in six families. Representatives of animalivorous guilds predominated in both the number of individuals and species. We speculate that the low numbers of frugivores is a response to the environmental constraints imposed by the drought. Along with an analysis of this assemblage, we also report here new information on roosts, behavior, and feeding items for several species about which little is yet known. © 2015, © 2015 Taylor & Francis.


Ghazali M.,Ukrainian Academy of Sciences | Moratelli R.,Campus Fiocruz da Mata Atlantica | Dzeverin I.,Ukrainian Academy of Sciences
Journal of Mammalian Evolution | Year: 2016

The genus Myotis is unique among mammals in its high taxonomic diversity and global distribution. Their phylogenetic relationships reflect biogeographic affinities rather than phenotypes. Myotis diverged from other bats in the early Miocene, with a subsequent split between Old and New World lineages about 19 million years ago. Similar ecomorphs (‘Leuconoe’ [near-water hunters], ‘Myotis’ [gleaners], ‘Selysius’ [aerial hawkers]) emerged independently in different lineages of Myotis. We retrieved the probable ancestral ecomorph for each lineage. Phenetic diversity was estimated from the analysis of body and skull traits. It seems that evolution of Myotis fluctuated between ‘Leuconoe’, ‘Selysius’, and larger ‘Myotis’. © 2016 Springer Science+Business Media New York


Moratelli R.,Campus Fiocruz da Mata Atlantica | De Andreazzi C.S.,Campus Fiocruz da Mata Atlantica | De Oliveira J.A.,Federal University of Rio de Janeiro | Cordeiro J.L.P.,Campus Fiocruz da Mata Atlantica
Mammalia | Year: 2011

Myotis simus is apparently restricted to tropical and subtropical South American lowlands, with a possible disjunction isolating northern and southern populations. Twenty-eight museum and literature records were assembled and analysed in the context of a taxonomic review of South American species of Myotis. In order to model the distribution of M. simus, to reveal putative areas of occurrence and environmental constraints to its distribution, as well as to test the previously proposed hypothesis of disjunct distribution, Maximum entropy algorithm (MaxEnt) was implemented on the information retrieved from the sampling localities, using nine environmental variables. Two regions with increased probability values were revealed in the Amazon and Parana basins, connected by a bottleneck in southeastern Bolivia, which provides further support for the previously proposed hypothesis of disjunctive distribution. The predicted distribution for M. simus was strongly associated with the drainage basins, precipitations of the driest quarter, mean temperatures of the warmest quarter and altitude. The Andean eastern slopes and the Guyana, Parana and Central Brazilian plateaus delimit the geographical distribution of M. simus, and the confirmed records document its presence in both terra firme and floodplain areas in lowland forest and savanna formations across South America. © 2011 by Walter de Gruyter - Berlin.


Moratelli R.,Campus Fiocruz da Mata Atlantica | Moratelli R.,Smithsonian Institution | Wilson D.E.,Smithsonian Institution
Proceedings of the Biological Society of Washington | Year: 2015

Myotis diminutus Moratelli & Wilson, 2011a (Vespertilionidae, Myotinae) was known only from the holotype-a subadult collected in a fragment of moist forest on the western slope of the Ecuadorian Andes in 1979. Based on recent work in museum collections, we discovered a second specimen of Myotis diminutus, collected in 1959. This specimen of Myotis diminutus comes from La Guayacana, Narinõ, western Colombia (≈ 135 km north from the type locality); and M. nigricans (Schinz, 1821) also was collected at the same locality. This record confirms the distinctiveness of Myotis diminutus. This species is known from only the Chocó ecoregion, one of the critical biodiversity hotspots on Earth. We have no evidence of living individuals. In this report we also investigate the relationships among Myotis nigricans from eastern and western sides of the Andes. Our results confirm that populations from both sides of the Cordillera represent the same subspecies-Myotis nigricans nigricans.


Moratelli R.,Campus Fiocruz da Mata Atlantica | de Oliveira J.A.,Federal University of Rio de Janeiro
Zoologia | Year: 2011

Myotis albescens (É. Geoffroy, 1806) occurs from Mexico to Uruguay and Argentina. Despite a large number of specimens in collections, its variability in South America has been underestimated, potentially leading to errors in identification. In order to clarify the taxonomic limits of M. albescens and to evaluate previous hypotheses of geographic variation in size we analyzed the type material and studied the variability in South American samples using multivariate exploratory and confirmatory procedures, as well as frequency analyses of discrete morphological data. The presence of a fringe of hairs along the trailing edge of the uropatagium, the long and silky pelage with frosted appearance on the dorsum, ear 9 to 14 mm long, broad interorbital and postorbital constrictions, and a globular braincase were identified as the most useful traits to distinguish M. albescens from its South American congeners. In agreement with Bergman's rule, larger specimens were found in the South. Beyond the geographic component, Individual variation is an important factor affecting the variability in the size and shape of the skull and pelage color. © 2011 Sociedade Brasileira de Zoologia.


Moratelli R.,Campus Fiocruz da Mata Atlantica | Peracchi A.L.,Federal Rural University of Rio de Janeiro | Dias D.,Instituto Oswaldo Cruz | De Oliveira J.A.,Federal University of Rio de Janeiro
Mammalian Biology | Year: 2011

The genus Myotis (Vespertilionidae, Myotinae) comprises a diverse group of small to large-sized vespertilionid bats that present a worldwide distribution. Twelve South American species are currently recognized. In this paper we evaluate the morphological and morphometric variation observed in South American populations of the most widespread species, Myotis nigricans. Against this background, two forms can be morphologically distinguished from M. nigricans and other known South American species. We describe these new species, documenting their diagnostic external and cranial characters by comparing them to other sympatric and cryptic species of South American Myotis. In addition, we provide an emended diagnosis of Myotis nigricans. © 2011 Deutsche Gesellschaft für Säugetierkunde.


Moratelli R.,Campus Fiocruz da Mata Atlantica | Moratelli R.,Smithsonian Institution | Wilson D.E.,Smithsonian Institution
Journal of Mammalogy | Year: 2014

We describe Myotis midastactus sp. nov. from the Bolivian savanna on the basis of differences in fur color, and cranial and external features that unquestionably distinguish it from all other Neotropical Myotis. This new species is morphologically allied to M. simus Thomas, 1901 and other species in the M. ruber group. Myotis midastactus is endemic to Bolivia, where it occurs with 6 congeners-albescens, dinellii, keaysi, nigricans, riparius, and oxyotus. Previously identified as M. simus, M. midastactus is in syntopy with M. nigricans and M. riparius in the department of Santa Cruz, and there is no evidence that true M. simus occurs in Bolivia. © 2014 American Society of Mammalogists.


Moratelli R.,Campus Fiocruz da Mata Atlantica | Wilson D.E.,Smithsonian Institution
Mammalian Biology | Year: 2011

A new species of bat in the genus Myotis (Vespertilionidae, Myotinae) is described from the Chocó ecoregion on the western slope of the Andes in northwestern Ecuador. The genus Myotis comprises a diverse group of small to large-sized vespertilionid bats distributed worldwide. Twelve South American species are recognized currently, 6 of which occur in Ecuador. Morphological relationships among the new species and the other 12 South American species of Myotis were examined using 15 cranial and 5 external characters. Both qualitative and quantitative analyses found the new species to be distinct. As an aid to future identifications, we provide a key to the Ecuadorian species of Myotis. © 2010 Deutsche Gesellschaft für Säugetierkunde.


Dias D.,Instituto Oswaldo Cruz | Esberard C.E.L.,Federal Rural University of Rio de Janeiro | Moratelli R.,Campus Fiocruz da Mata Atlantica
Check List | Year: 2016

Lonchophylla peracchii was recently described from Rio de Janeiro Atlantic Forest samples previously assigned to either L. bokermanni Sazima, Vizotto & Taddei, 1978 or L. mordax Thomas, 1903. The species is currently restricted to the Atlantic Forest of Southeastern Brazil. Based on museum specimens, we extend the species distribution to the Atlantic Forest of Northeastern Brazil. The specimens reported here were collected in Ilhéus, Bahia state, representing a range extension of ca. 500 km northward. © 2016 Check List and Authors.

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