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1.
Prev Vet Med ; 225: 106135, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38394962

RESUMEN

The aim of this scoping review was to describe the zoonotic bacterial pathogens already reported and their frequency in different bat species. Six databases were searched, without restriction on the year or location where the studies were carried out. Based on the inclusion and exclusion criteria, 146 studies that were published between 1964 and 2020 (most after 2005) were selected. In these studies, 102 zoonotic bacterial genera were described in different samples of fourteen bat families in 55 countries, suggesting the possible role of bats as hosts for these pathogens. The pathogens mainly identified in bats were Bartonella spp., Leptospira spp. and Staphylococcus spp. In conclusion, the information provided by this scoping review expands the knowledge about zoonotic bacterial pathogens already identified in bats, which can guide epidemiological surveillance policies for these pathogens in different countries.


Asunto(s)
Infecciones por Bartonella , Bartonella , Quirópteros , Humanos , Animales , Infecciones por Bartonella/epidemiología , Infecciones por Bartonella/microbiología , Infecciones por Bartonella/veterinaria , Filogenia , Bacterias
2.
Parasitol Res ; 122(1): 127-137, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36308532

RESUMEN

The conversion of natural areas into agricultural landscapes results in different mosaics of land use types, modifying biodiversity and consequently altering the patterns of ecological interactions, such as between frugivorous bats and ectoparasites. Our objectives were to investigate whether variations in the configuration and composition of human-disturbed landscapes interfere with the prevalence and average intensity of ectoparasite infestation in the frugivorous bats Artibeus lituratus (Olfers, 1818), Carollia perspicillata (Linnaeus, 1758), and Sturnira lilium (É Geoffroy, 1810), in a region of the Brazilian Atlantic Forest. We also evaluated whether there is a response in the parasite load associated with the ectoparasite group (mite or fly). We found six species of flies and three mites. The proportion of infested hosts was more affected by the landscape than the mean infestation values. Land cover diversity influenced seven of the interactions studied. Forest cover affected eight of the interactions and was associated with a reduction in the parasite load in seven of them. The increase in the proportion of edges per area of each fragment presented a different influence related to the host species. Variations in parasite load did not show any typical response related to the mite or fly group. Our study indicates that landscape configuration and composition interfere with bat-ectoparasite interactions, which may be related to interference in encounter rates between hosts (for mites and flies) and between hosts and their ectoparasites in roosts (for flies). The taxonomic identity of the interacting species suggests that the relationship with the landscape is context-dependent.


Asunto(s)
Quirópteros , Dípteros , Infestaciones Ectoparasitarias , Ácaros , Humanos , Animales , Ácaros/fisiología , Quirópteros/parasitología , Dípteros/fisiología , Prevalencia , Infestaciones Ectoparasitarias/epidemiología , Infestaciones Ectoparasitarias/veterinaria , Infestaciones Ectoparasitarias/parasitología , Brasil/epidemiología , Interacciones Huésped-Parásitos
3.
Am J Primatol ; 83(2): e23226, 2021 02.
Artículo en Inglés | MEDLINE | ID: mdl-33492691

RESUMEN

The Saguinus mystax group traditionally includes three species, S. mystax, S. labiatus, and S. imperator. The additional inclusion of S. inustus is argued on molecular grounds, which have an important impact on our comprehension of the phenotypical evolution and biogeography of the group. Here, we investigate the evolutionary events leading to the diversification of the S. mystax group, integrating phylogenetic, temporal, and geographic information with the current knowledge of the Amazonian paleogeographical history. The examination of 208 specimens of Saguinus resulted in 25 morphological characters, of which 13 were used for the first time in a phylogenetic analysis of the genus. Morphological characters were also combined with molecular data and analyzed using Bayesian and Maximum Likelihood methods. Trees resulting from morphological and combined data recovered a monophyletic S. mystax group, including S. inustus, whose inclusion was supported by two morphological synapomorphies. Molecular based age estimates place the origin of Saguinus in the middle Miocene (17.4-13 million years ago [mya]), whereas the S. mystax group originated in an interval between 12 and 6 mya. Our results also suggest that the ancestral area of Saguinus was western Amazon, from where they dispersed to their current distribution after the end of the Pebas lakes system. The diversification events in the S. mystax group are related to the Pliocene development of the modern Amazon river network associated to the uplift of Fitzcarrald Arch.


Asunto(s)
Evolución Biológica , Filogeografía , Saguinus/clasificación , Animales , Saguinus/anatomía & histología , Saguinus/genética
4.
Oecologia ; 193(1): 189-198, 2020 May.
Artículo en Inglés | MEDLINE | ID: mdl-32405932

RESUMEN

While functional traits can facilitate or constrain interactions between pair of species in ecological communities, relative abundances regulate the probabilities of encounter among individuals. However, the relative importance of traits and relative abundances for the role species play in seed dispersion networks remains poorly explored. Here, we analyzed 20 Neotropical seed dispersal networks distributed from Mexico to southeastern Brazil to evaluate how relative abundance and functional traits influence bat species' roles in seed dispersal networks. We tested how bat relative abundance and traits relate to species contribution to between-module (c metric) and within-module connectivity (z metric) and their position and potential to mediate indirect effects between species (betweenness centrality). Our results indicate that relative abundance is the main determinant of the role bats play in the networks, while traits such as aspect ratio show modest yet statistically significant importance in predicting specific roles. Moreover, all seed dispersal networks presented two or three superabundant obligatory frugivore species that interacted with a high number of plants. The modest influence of the functional traits on species' roles is likely related to the low variation of morphological traits related to foraging ecology, which reduces the chances of morphological mismatching between consumers and resources in the system. In this scenario, abundant bats have higher chances of encountering resources and being capable of consuming them which leads such species to play critical roles in the community by acting as module hubs and network connectors.


Asunto(s)
Quirópteros , Dispersión de Semillas , Animales , Aves , Brasil , Ecosistema , Frutas , México , Semillas
5.
Acta amaz ; 46(2): 227-232, abr.-jun. 2016. tab
Artículo en Inglés | LILACS, VETINDEX | ID: biblio-1455291

RESUMEN

The northern Brazilian state of Mato Grosso is considered an important biogeographical region, but has many sampling gaps. Apart from the well-documented non volant mammal community in the region, the bat fauna still poorly recorded. The aim of this study was to record the bat species of Juruena National Park, northern Mato Grosso, Brazil. Nineteen sites were sampled using mist-nets placed at ground level and near potential bat roosts. We collected 115 individuals belonging to 35 species and five families, which increased the number of species known for Mato Grosso´s Amazon from 86 to 91. The five new records were: Peropteryx kappleri, Peropteryx leucoptera, Lonchorhina inusitata, Tonatia saurophila, and Artibeus concolor. Our results pointed out the necessity of more studies in order to better estimate the bat diversity in northern Mato Grosso.


O norte do estado do Mato Grosso é uma importante região para estudos biogeográficos com muitos hiatos de amostragem sendo a fauna de morcegos pobremente conhecida. O objetivo deste estudo foi fornecer uma lista de morcegos para o Parque Nacional do Juruena, norte do Mato Grosso, Brasil. Foram amostrados 19 sítios e empregadas redes-de-neblina ao nível do solo e próximos a abrigos potenciais de morcegos. Foram coletados 115 indivíduos representando 35 espécies e cinco famílias, aumentando de 86 para 91 o número de espécies conhecidas para a Amazônia no Mato Grosso. Houve cinco novos registros para a porção amazônica do estado: Peropteryx kappleri,Peropteryx leucoptera, Lonchorhina inusitata, Tonatia saurophila e Artibeus concolor. Os resultados indicam a necessidade de mais estudos para uma melhor estimativa da diversidade no norte do Mato Grosso.


Asunto(s)
Animales , Biodiversidad , Grupos de Población Animal , Quirópteros
6.
Cladistics ; 32(1): 2-35, 2016 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-34732020

RESUMEN

Molossidae is a large (roughly 100 species) pantropically distributed clade of swift aerially insectivorous bats for which the phylogeny remains relatively unknown and little studied compared with other speciose groups of bats. We investigated phylogenetic relationships among 62 species, representing all extant molossid genera and most of the subgenera, using 102 morphological characters from the skull, dentition, postcrania, external morphology, tongue, and penis, based on direct observation and literature reports. Both parsimony and Bayesian analyses were used in phylogenetic reconstruction. Our analysis supports two main clades of molossids, both of which mingle Old World and New World taxa. One clade is comprised of Mormopterus,Platymops, Sauromys, Neoplatymops, Molossops, Cynomops, Cheiromeles, Molossus, and Promops. The other clade includes Tadarida, Otomops, Nyctinomops, Eumops, Chaerephon, and Mops. The position of Myopterus with respect to these two groups is unclear. As in other recent analyses, we find that several genera do not appear to be monophyletic (e.g. Tadarida, Chaerephon, and Molossops sensu lato). We recommend that the subgenera of Molossops sensu lato and Austronomus be recognized at the generic level. We conclude that much more data are needed to investigate lower level problems (generic monophyly and relationships within genera) and to resolve the higher-level branching pattern of the family.

7.
Zootaxa ; 3878(1): 19-36, 2014 Oct 22.
Artículo en Inglés | MEDLINE | ID: mdl-25544431

RESUMEN

The genus Eumops is the most diverse genera of molossid bats in the Neotropics. In Peru this genus is widely distributed and represented by nine species: E. auripendulus, E. delticus, E. hansae, E. maurus, E. nanus, E. patagonicus, E. perotis, E. trumbulli, and E. wilsoni. After several years of mammalian diversity surveys in the coastal desert and western slopes of southwestern Peru, a specimen of Eumops was collected whose unique set of traits allows us to assert that deserves to be described as a new species. Based on molecular and morphological evidence, the new species is related to medium-large sized species (i.e. E. glaucinus, E. auripendulus, and E. perotis). Cytochrome b genetic divergence between the new species and the other species of the genus was high (> 12%) and it is consistent with morphological divergence presented for this new species. This new species, endemic to Peru, increases the diversity of Eumops to 16 species.


Asunto(s)
Quirópteros/clasificación , Distribución Animal , Estructuras Animales/anatomía & histología , Estructuras Animales/crecimiento & desarrollo , Animales , Tamaño Corporal , Quirópteros/anatomía & histología , Quirópteros/genética , Quirópteros/crecimiento & desarrollo , Ecosistema , Femenino , Masculino , Tamaño de los Órganos , Filogenia
8.
Acta Parasitol ; 58(4): 556-63, 2013 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-24338319

RESUMEN

A total of 71 bat flies belonging to families Nycteribiidae and Streblidae, and 37 mites were collected on 12 species of bats (Phyllostomidae and Vespertilionidae) from the Chapada do Abanador (Minas Gerais, Brazil), between July 2009 and April 2010. Two new occurrences of ectoparasites were recorded on Histiotus velatus (bat fly Basilia producta) and on Carollia perspicillata (mite Parichoronyssus bakeri). Five new occurrences were recorded for the state of Minas Gerais, increasing the range for bat flies Anatrichobius passosi, Paraeuctenodes similis, Basilia juquiensis, Basilia producta and for mite Periglischrus vargasi. Moreover, two new species of mites were recorded for Brazil (P. bakeri and Macronyssus aff. leislerianus). With regard to infracommunities, the most frequent association was between Anastrebla modestini and Exastinion clovisi on bat Anoura geoffroyi. This study contributed to characterize the fauna of bat ectoparasites in representative but poorly-sampled environments of the Atlantic Forest, the campos de altitude (high altitude grasslands) and cloud forests of southern Minas Gerais.


Asunto(s)
Ácaros y Garrapatas/crecimiento & desarrollo , Quirópteros/parasitología , Dípteros/crecimiento & desarrollo , Infestaciones Ectoparasitarias/veterinaria , Animales , Brasil , Infestaciones Ectoparasitarias/parasitología
9.
Zootaxa ; 3721: 172-82, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-26120667

RESUMEN

In this study, we review the taxonomy of Saguinus niger (É. Geoffroy) and revalidate Saguinus ursula Hoffmannsegg as a distinct species. The revalidation is based on pelage coloration, and the pattern of morphological divergence is corroborated by molecular data. Samples from the east bank of the Tocantins River (S. ursulus) were distinct from specimens of S. niger from the west bank in having mid-dorsal hair with an wide (5.0-55 mm) intermediary band of bright and golden buffy color; long (ca. 23-26 mm) dorsal hair at the inter-scapular region; and naked (not noticeably haired) face, hands and fingers. Saguinus ursulus and S. niger are allopatric, and Tocantins River is putatively acting as an effective barrier for gene flow. A lectotype to S. ursulus from syntypes was designated.


Asunto(s)
Saguinus/clasificación , Estructuras Animales/anatomía & histología , Animales , Museos , Saguinus/anatomía & histología
10.
Biota neotrop. (Online, Ed. port.) ; 11(4): 111-131, Oct.-Dec. 2011. tab
Artículo en Portugués | LILACS-Express | LILACS | ID: lil-651614

RESUMEN

A fauna de mamíferos do estado de São Paulo consta de 231 táxons, sendo este número uma estimativa da real diversidade presente na região, dado a falta de amostragem em grandes extensões do estado, e também de revisões taxonômicas para determinados grupos. Ainda assim, nosso conhecimento aumentou em 20% desde a última estimativa em 1998, principalmente em relação aos quirópteros e roedores. Estes dados são provenientes de inventários faunísticos, e também do estudo de espécimes depositados em coleções científicas oriundos de revisões taxonômicas. Também temos um maior volume de dados a respeito da distribuição dos mamíferos em relação às diferentes paisagens presentes no estado, o que nos permite dividir a mastofauna em três componentes distintos: o mais importante desses é o das espécies generalistas, que ocorrem em todas as principais paisagens do estado; o segundo grupo concentra espécies das formações abertas, e o terceiro grupo inclui as espécies essencialmente florestais. Além disso, o número de estudos que tem se preocupado com o efeito da fragmentação de hábitats sobre as comunidades de mamíferos, bem como a respeito da permeabilidade das espécies em áreas alteradas, também aumentaram. Dados a respeito da ocorrência, abundância e vulnerabilidade das espécies foram essenciais para traçar estratégias em relação à escolha de áreas e à indicação de ações prioritárias para a conservação dos mamíferos no estado, assim como classificar as espécies nas diferentes categorias de ameaças propostas, culminando na Lista das Espécies Ameaçadas do Estado de São Paulo. Entretanto, ainda existem inúmeras lacunas de conhecimento, que vão desde o número limitado de amostras zoológicas, até a falta de informações acerca da ecologia e história natural de várias espécies. É imprescindível que aumentemos as amostras de mamíferos em coleções zoológicas, principalmente em áreas de Floresta Ombrófila Densa, nos fragmentos de Cerrado, bem como em áreas do centro e oeste do Estado, que permanecem ainda pouco estudadas, com o objetivo de produzir um maior número de revisões taxonômicas em diversos grupos de mamíferos, e de estudos com abordagens filogeográficas e de genética de populações, para diagnosticarmos de forma efetiva a riqueza de mamíferos no estado, bem como os mecanismos evolutivos responsáveis por esta diversificação. Aliados a esses estudos serão necessárias abordagens ecológicas para gerarmos conhecimento, que em conjunto, nos permitirá avaliarmos o estado de conservação dos mamíferos de São Paulo e tomarmos decisões sobre as melhores estratégias para manejarmos e preservarmos estas espécies.


São Paulo harbors 231 mammal species until now. This is an estimate of its real diversity since many regions of the State continue poorly surveyed, and also reflects the lack of taxonomic work for certain mammal taxa. Nevertheless, our knowledge of the São Paulo mammals has increased in 20% in the last 12 years, especially in relation to bats and rodents. These new data are based in mammal inventories and also in the analysis of specimens housed in scientific collections associated with taxonomic revisions. We also know better about the mammal distribution in the distinct vegetation units present in the State, permitting us to divide the mammals in three distinct components: the most important one is the generalists, represented by species occurring in every landscape in the State, while the second one concentrates species inhabiting the open formations, and the third component the species associated with the forest formations. Besides, the number of studies dealing with the effect of fragmentation and the permeability of mammals in altered areas also has increased. Occurrence, abundance and vulnerability data were essential to raise strategies in order to choose priority areas and to indicate priority actions to conserve the mammals of the State, as well as to classify the species in the different proposed threaten categories, culminating in the List of the Threaten Species of the São Paulo State. However, there are many points yet poorly developed or poorly known, such as the limited number of zoological samples, and the lack of information about the ecology and natural history of many species, respectively. It's extremely important that we increase our samples in the scientific collections, especially in areas of Dense Ombrofilous Forests, in the Cerrado fragments, as well as in central and western areas of the State that continue poorly surveyed. The objective is to produce more taxonomic work in several mammalian groups, and also studies focusing in the phylogeography and in the population genetics in order to effectively diagnose the mammal richness of the State, as well as the evolutionary processes responsible for this diversification. Additionally, ecological data accompanying this information is needed in order to evaluate the conservation status of the São Paulo mammals to decide about the better strategies to manage and conserve these mammals.

11.
Biota neotrop. (Online, Ed. port.) ; 11(1): 299-311, jan.-mar. 2011. ilus, graf, mapas, tab
Artículo en Portugués | LILACS | ID: lil-599704

RESUMEN

Registramos 39 espécies de quirópteros na Estação Ecológica Serra Geral do Tocantins e áreas adjacentes, nordeste do estado do Tocantins, durante 28 dias de trabalho de campo nos anos de 2003 e 2008 e na estação chuvosa. Este estudo da quiropterofauna é um dos primeiros para o estado do Tocantins, aumentando o número de espécies conhecido para esta região, com 29 espécies registradas pela primeira vez no estado. As espécies mais abundantes foram P. lineatus e C. perspicillata, com 23,5 e 15,4 por cento do total de capturas. A diversidade no nível de família também foi alta: Phyllostomidae (26 espécies), Vespertilionidae (5), Molossidae (3), Emballonuridae (2), Mormoopidae (1), Noctilionidae (1) e Thyropteridae (1). A maioria das áreas mésicas e de cerrado (s.s.) não estão incluídas em unidades de conservação, representando uma ameaça para espécies restritas a estes tipos de hábitats, como T. devivoi que foi capturada apenas em áreas de veredas com Heliconiacea. Além disso, a região vem sendo alterada devido ao rápido avanço da agricultura e pastagens e do turismo crescente. Assim, a elevada diversidade de morcegos registrada na região, além dos diversos papéis ecológicos que estas espécies desempenham, somadas às ameaças acima relatadas, aumentam as prioridades em se estabelecer estratégias de conservação para este grupo de mamíferos nas regiões adjacentes à Estação Ecológica Serra Geral do Tocantins. Dentre as espécies com interesse taxonômico, biogeográfico e de conservação destacam-se Lonchophylla dekeyseri, Glyphonycteris behnii, Micronycteris sanborni, Artibeus anderseni, Sturnira tildae e a recém-descrita Thyroptera devivoi.


During 28 days of field work in rainy season in 2003 and 2008, 39 species of bats were recorded in the Estação Ecológica Serra Geral do Tocantins, northeastern State of Tocantins. This is one of the first studies about bat communities in the State of Tocantins increasing the number of species known to occur in that Federal unit, with 29 species representing the first occurrence for the State. Frugivores P. lineatus and C. perspicillata were the most common species in the community, with 23.5 and 15.4 percent of total captures. Diversity at the family level also was high with seven families recorded: Phyllostomidae (26 species), Vespertilionidae (5), Molossidae (3), Emballonuridae (2), Mormoopidae (1), Noctilionidae (1), and Thyropteridae (1). Most of mesic and cerrado (s.s.) areas are not included in this Conservation Unit, imposing a problem for the conservation of habitat-restricted species like T. devivoi which was captured only in "veredas" with Heliconiacea until now. Additionally, the region is facing an increase in the tourism, agriculture and pasture activities. Due to the high expected bat diversity for the area, the known ecological functions played by bats, and the several human induced threats, there is urgency concerning the conservation strategies for this group of mammals in the vicinity of the Estação Ecológica Serra Geral do Tocantins. The species with high importance in relation to taxonomy, biogeography and conservation issues are: Lonchophylla dekeyseri, Glyphonycteris behnii, Micronycteris sanborni, Artibeus anderseni, Sturnira tildae and the recently described Thyroptera devivoi.

12.
Biota neotrop. (Online, Ed. port.) ; 11(1): 329-338, jan.-mar. 2011. mapas, tab
Artículo en Portugués | LILACS | ID: lil-599706

RESUMEN

Inventários e estudos faunísticos detalhados sobre vertebrados são uma das fontes mais relevantes de dados para interpretações de padrões detalhados de diversidade biológica. Dados básicos e de boa qualidade sobre faunística são ainda mais urgentes em regiões pouco estudadas e sob intensa ameaça antrópica, tais como a região do Cerrado, um dos 34 hotspots globais para a conservação da biodiversidade. Apresentamos aqui uma síntese dos resultados dos inventários de vertebrados na Estação Ecológica Serra Geral do Tocantins (~716.000 ha), a segunda maior unidade de conservação em todo o Cerrado. Foram registradas 450 espécies de vertebrados na EESGT e entorno imediato, incluindo 17 espécies ameaçadas, 50 espécies endêmicas do Cerrado e 11 espécies com distribuição potencialmente restrita. Do total de espécies amostradas, 180 são novos registros para a região do Jalapão. Ao menos 12 espécies amostradas foram consideradas potenciais espécies novas, das quais quatro foram descritas recentemente, a partir do material obtido no inventário. Os resultados evidenciam que a EESGT é uma das mais importantes áreas protegidas no Brasil central, contribuindo para a persistência de espécies ameaçadas, dependentes dos últimos grandes blocos contínuos de vegetação nativa de Cerrado. Nossos resultados indicam ainda que a conservação da EESGT e suas principais subunidades é crucial para a representatividade do sistema de áreas protegidas do Cerrado, protegendo potenciais endemismos restritos que aliam alta vulnerabilidade intrínseca e valor como indicadores de padrões e processos biogeográficos formadores da rica e cada vez mais ameaçada fauna Neotropical.


Basic taxonomic and distributional data on vertebrates are one of the most useful and reliable sources of information for conservation planning. Biological data are even more relevant in rich and highly threatened regions such as the Brazilian Cerrado, one of the least studied global biodiversity hotspots. Herein we provide a summary of the results of a vertebrate survey at Estação Ecológica Serra Geral do Tocantins (~716.000 ha), the second largest protected area in the Cerrado region. We recorded 450 species in EESGT and surroundings, including 17 threatened species, 50 Cerrado endemics and 11 potential restricted-range species. Our results also added 180 new vertebrate records for the Jalapão region. At least 12 species were considered potential undescribed taxa; four of these were recently described based on specimens obtained in the present study. Our results indicate that EESGT is among the most biologically relevant protected areas in the Cerrado. Proper management will favor the persistence of threatened vertebrates dependent on the last remaining large blocks of pristine Cerrado savannas. Moreover, EESGT and its major biological subunits contribute decisively to the representativeness of the reserve system in the Cerrado, conserving presumed narrow endemics with high intrinsic vulnerability and high potential value as indicators of biogeographic processes of diversification in rich and complex Neotropical biotas.

13.
Biota neotrop. (Online, Ed. port.) ; 9(2): 267-270, Apr.-June 2009. mapas, tab
Artículo en Inglés | LILACS | ID: lil-529231

RESUMEN

There is a lack of knowledge of the biology and distribution of Nyctinomops aurispinosus. Herein, we report the southernmost record of this species, from the city of Curitiba (25º 25' S and 49º 15' W, 920 m), state of Paraná, Brazil, and summarize its distribution in South America.


Há uma grande lacuna no conhecimento da biologia e corologia de Nyctinomops aurispinosus. Nesta comunicação, nós apresentamos o registro mais austral deste molossídeo, realizado na cidade de Curitiba (25º 25' S e 49º 15' W, 920 m), estado do Paraná, Brasil, e sumarizamos a distribuição geográfica conhecida para a espécie na América do Sul.


Asunto(s)
Biodiversidad , Quirópteros , Clasificación , Ecosistema , Ecosistema/análisis , Ecosistema/clasificación , Mamíferos
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