6 research outputs found

    New records of bird species from Ilha Grande, state of Rio de Janeiro, southeastern Brazil

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    We add 32 new records of species to the existing checklist of birds of the coastal island of Ilha Grande, state of Rio de Janeiro, Brazil. Notably, seven of these species are endemic to the Atlantic Forest. Sporophila falcirostris is globally Vulnerable and Haematopus palliatus is Near Threatened in Brazil. We also report the second record of Agelaioides badius from Rio de Janeiro state. We also compare our species list with lists of birds of Ilhabela and Anchieta islands. While some of the newly recorded species are probably non-resident to Ilha Grande or represent range expansions, most species occur in Rio de Janeiro throughout the year. Thus, our records may be a consequence of the surveying new sites on the island but also recent colonization. Our study increases the number of bird species known to occur on Ilha Grande from 222 to 254, which is one-third of the species reported from Rio de Janeiro state. We recorded 13 species threatened by extinction at regional, national or global levels

    Morcegos (Mammalia, Chiroptera) em remanescente de Floresta Atlântica, Rio de Janeiro, sudeste do Brasil

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    Biodiversity inventories are essential to generate information leading to the proposal of conservation plans, especially for threatened areas. Despite being one of the best sampled regions for bats in Brazil, some areas of Rio de Janeiro still represent knowledge gaps. Between May 2011 and June 2012, we performed 36 nightly samplings to conduct an inventory of bat species in Reserva Ecológica de Guapiaçu, in Cachoeiras de Macacu, in the state of Rio de Janeiro, southeastern Brazil. We used 10 mist-nets per night opened from sunset to sunrise. A total of 1,290 individuals belonging to 31 bat species were caught. They were distributed in three families, Phyllostomidae (24 species), Vespertilionidae (four species) and Molossidae (three species). We recorded two other species of two families, Noctilionidae and Thyropteridae, by direct observations. The species richness of bats in Reserva Ecológica de Guapiaçu is one of the largest ever recorded in the Atlantic Forest.Keywords: rainforest, species richness, abundance, biodiversity inventory.Inventários de biodiversidade são essenciais para gerar informações que levem à proposta de planos de conservação, especialmente para áreas ameaçadas. Apesar do estado do Rio de Janeiro ser a região com maior número de amostragens de morcegos no Brasil, algumas áreas ainda representam lacunas de conhecimento. Entre maio de 2011 e junho de 2012, realizamos 36 amostragens noturnas para inventariar as espécies de morcegos da Reserva Ecológica de Guapiaçu, no município de Cachoeiras de Macacu, Rio de Janeiro. Foram utilizadas 10 redes-de-neblina por noite, abertas do anoitecer ao amanhecer. Um total de 1.290 indivíduos pertencentes a 31 espécies de morcegos foi capturado. As espécies estão distribuídas em três famílias, Phyllostomidae (24 espécies), Vespertilionidae (quatro espécies) e Molossidae (três espécies). Duas outras espécies, das famílias Noctilionidae e Thyropteridae, foram registradas por observações diretas. A riqueza de morcegos da Reserva Ecológica de Guapiaçu é uma das maiores já registradas na Floresta Atlântica.Palavras-chave: floresta úmida, riqueza de espécies, abundância, inventário de biodiversidade

    First evidence of frugivory in Myotis (Chiroptera, Vespertilionidae, Myotinae)

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    Myotis occurs from tropical to temperate regions throughout the globe, and it is the largest bat genus with more than 100 species. Most species are insect-eaters, but a few also feed on other invertebrates and fishes; there is no confirmed evidence of a plant item in their diet. During fieldwork in the Brazilian Atlantic Forest, small seeds were retrieved from the feces of one adult female of the Black Myotis, Myotis nigricans—one of the most common Neotropical bats. In a germination experiment, 40% of those seeds grew into seedlings. Our findings are the first evidence of fruit consumption for any Myotis species. We reject a possible contamination because the cotton bag was never used before for bats. This study is the first evidence of frugivory in the genus Myotis

    New records of bird species from Ilha Grande, state of Rio de Janeiro, southeastern Brazil

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    We add 32 new records of species to the existing checklist of birds of the coastal island of Ilha Grande, state of Rio de Janeiro, Brazil. Notably, seven of these species are endemic to the Atlantic Forest. Sporophila falcirostris is globally Vulnerable and Haematopus palliatus is Near Threatened in Brazil. We also report the second record of Agelaioides badius from Rio de Janeiro state. We also compare our species list with lists of birds of Ilhabela and Anchieta islands. While some of the newly recorded species are probably non-resident to Ilha Grande or represent range expansions, most species occur in Rio de Janeiro throughout the year. Thus, our records may be a consequence of the surveying new sites on the island but also recent colonization. Our study increases the number of bird species known to occur on Ilha Grande from 222 to 254, which is one-third of the species reported from Rio de Janeiro state. We recorded 13 species threatened by extinction at regional, national or global levels

    New records of bird species from Ilha Grande, state of Rio de Janeiro, southeastern Brazil

    No full text
    We add 32 new records of species to the existing checklist of birds of the coastal island of Ilha Grande, state of Rio de Janeiro, Brazil. Notably, seven of these species are endemic to the Atlantic Forest. Sporophila falcirostris is globally Vulnerable and Haematopus palliatus is Near Threatened in Brazil. We also report the second record of Agelaioides badius from Rio de Janeiro state. We also compare our species list with lists of birds of Ilhabela and Anchieta islands. While some of the newly recorded species are probably non-resident to Ilha Grande or represent range expansions, most species occur in Rio de Janeiro throughout the year. Thus, our records may be a consequence of the surveying new sites on the island but also recent colonization. Our study increases the number of bird species known to occur on Ilha Grande from 222 to 254, which is one-third of the species reported from Rio de Janeiro state. We recorded 13 species threatened by extinction at regional, national or global levels

    NEOTROPICAL CARNIVORES: a data set on carnivore distribution in the Neotropics

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    Mammalian carnivores are considered a key group in maintaining ecological health and can indicate potential ecological integrity in landscapes where they occur. Carnivores also hold high conservation value and their habitat requirements can guide management and conservation plans. The order Carnivora has 84 species from 8 families in the Neotropical region: Canidae; Felidae; Mephitidae; Mustelidae; Otariidae; Phocidae; Procyonidae; and Ursidae. Herein, we include published and unpublished data on native terrestrial Neotropical carnivores (Canidae; Felidae; Mephitidae; Mustelidae; Procyonidae; and Ursidae). NEOTROPICAL CARNIVORES is a publicly available data set that includes 99,605 data entries from 35,511 unique georeferenced coordinates. Detection/non-detection and quantitative data were obtained from 1818 to 2018 by researchers, governmental agencies, non-governmental organizations, and private consultants. Data were collected using several methods including camera trapping, museum collections, roadkill, line transect, and opportunistic records. Literature (peer-reviewed and grey literature) from Portuguese, Spanish and English were incorporated in this compilation. Most of the data set consists of detection data entries (n = 79,343; 79.7%) but also includes non-detection data (n = 20,262; 20.3%). Of those, 43.3% also include count data (n = 43,151). The information available in NEOTROPICAL CARNIVORES will contribute to macroecological, ecological, and conservation questions in multiple spatio-temporal perspectives. As carnivores play key roles in trophic interactions, a better understanding of their distribution and habitat requirements are essential to establish conservation management plans and safeguard the future ecological health of Neotropical ecosystems. Our data paper, combined with other large-scale data sets, has great potential to clarify species distribution and related ecological processes within the Neotropics. There are no copyright restrictions and no restriction for using data from this data paper, as long as the data paper is cited as the source of the information used. We also request that users inform us of how they intend to use the data
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