13 research outputs found

    NEOTROPICAL XENARTHRANS: a data set of occurrence of xenarthran species in the Neotropics

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    Xenarthrans – anteaters, sloths, and armadillos – have essential functions for ecosystem maintenance, such as insect control and nutrient cycling, playing key roles as ecosystem engineers. Because of habitat loss and fragmentation, hunting pressure, and conflicts with 24 domestic dogs, these species have been threatened locally, regionally, or even across their full distribution ranges. The Neotropics harbor 21 species of armadillos, ten anteaters, and six sloths. Our dataset includes the families Chlamyphoridae (13), Dasypodidae (7), Myrmecophagidae (3), Bradypodidae (4), and Megalonychidae (2). We have no occurrence data on Dasypus pilosus (Dasypodidae). Regarding Cyclopedidae, until recently, only one species was recognized, but new genetic studies have revealed that the group is represented by seven species. In this data-paper, we compiled a total of 42,528 records of 31 species, represented by occurrence and quantitative data, totaling 24,847 unique georeferenced records. The geographic range is from the south of the USA, Mexico, and Caribbean countries at the northern portion of the Neotropics, to its austral distribution in Argentina, Paraguay, Chile, and Uruguay. Regarding anteaters, Myrmecophaga tridactyla has the most records (n=5,941), and Cyclopes sp. has the fewest (n=240). The armadillo species with the most data is Dasypus novemcinctus (n=11,588), and the least recorded for Calyptophractus retusus (n=33). With regards to sloth species, Bradypus variegatus has the most records (n=962), and Bradypus pygmaeus has the fewest (n=12). Our main objective with Neotropical Xenarthrans is to make occurrence and quantitative data available to facilitate more ecological research, particularly if we integrate the xenarthran data with other datasets of Neotropical Series which will become available very soon (i.e. Neotropical Carnivores, Neotropical Invasive Mammals, and Neotropical Hunters and Dogs). Therefore, studies on trophic cascades, hunting pressure, habitat loss, fragmentation effects, species invasion, and climate change effects will be possible with the Neotropical Xenarthrans dataset

    InfluĂȘncia da brisa terra-mar no perĂ­odo de saturação da umidade do ar no interior de dois seringais de cultivo em Ubatuba(SP) Influence of the land-sea breese on the saturation period of the relative humidity inside two adult rubber tree plantations in Ubatuba, State of SĂŁo Paulo, Brazil

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    Avaliou-se, em Ubatuba(SP), a influĂȘncia da brisa terra-mar no nĂșmero de horas com umidade relativa igual ou superior a 90% (NHUR > 90%) no interior de dois seringais [Hevea brasiliensis (Willd. ex Adr. de Juss) MĂŒell Arg.] adultos: um prĂłximo Ă  praia (800 m) e outro distante 5.000 m. Para o perĂ­odo estudado, os resultados demonstraram uma redução significativa do NHUR > 90%, 50% em mĂ©dia, no seringal prĂłximo Ă  praia. A diferença ficou mais evidente, 71,4% em mĂ©dia, quando se analisaram apenas os dias nĂŁo chuvosos, a fim de desconsiderar a saturação atmosfĂ©rica devida Ă  chuva. Os resultados deste estudo mostram que a advecção condicionada pela brisa terra-mar Ă© fator aerodinĂąmico de mesoescala que interfere no inĂ­cio e no final da saturação da umidade atmosfĂ©rica, reduzindo a duração do perĂ­odo de molhamento das folhas.<br>It was studied the influence of the land-sea breese on the duration of relative humidity equal to or higher than 90% (NHUR > 90%) inside two adult rubber tree plantations [Hevea brasiliensis (Willd. ex Adr. de Juss) MĂŒell Arg.]: one located near the shore (800 m) and other approximately 5,000 m away. It was found a significant reduction of NHUR > 90% in the plantation near the shore. This reduction was even more evident in clear nights, without rainfall effect. It is assumed that the advection of land-sea breese interferes at the starting and final moments of the humidity saturation, decreasing the leaf wettness duration period

    Perfil microbiolĂłgico, celular e fatores de risco associados Ă  mastite subclĂ­nica em cabras no semiĂĄrido da ParaĂ­ba Cellular and microbiological profiles and risk factors for subclinical mastitis in goats in the semi-arid region of ParaĂ­ba

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    Foi realizado um estudo da mastite subclĂ­nica em nove rebanhos de cabras leiteiras no semiĂĄrido paraibano com o objetivo de determinar a ocorrĂȘncia da infecção, avaliar o perfil microbiolĂłgico e celular do leite, testar a sensibilidade dos microorganismos isolados frente a antimicrobianos alĂ©m de identificar os fatores de risco. Foram utilizadas 131 cabras leiteiras das quais foram colhidas 261 amostras de leite para exame microbiolĂłgico e 131 para contagem de cĂ©lulas somĂĄticas (CCS). Na ocasiĂŁo das colheitas foi realizado o California Mastitis Test (CMT) e aplicado um questionĂĄrio epidemiolĂłgico por propriedade. Houve crescimento bacteriano em 30 amostras (11,49%) com 25 (83,33%) dos isolados identificados como Staphylococcus coagulase negativa e cinco (16,66%) Staphylococcus aureus. A mĂ©dia de CCS foi de 1,39x10(6) cĂ©lulas/ml. O CMT apresentou baixa sensibilidade (46,7%) e baixa especificidade (60,6%) quando comparado ao exame microbiolĂłgico. A gentamicina e a associação da neomicina, bacitracina e tetraciclina foram os antimicrobianos contra os quais os microrganismos isolados apresentaram 100% de sensibilidade. Penicilina e ampicilina foram os de maiores Ă­ndices de resistĂȘncia (66,67% e 63,89%, respectivamente). A caprinocultura nĂŁo ser a atividade principal da propriedade e o nĂŁo isolamento de animais doentes, foram identificados como fatores de risco para a mastite subclĂ­nica caprina nas propriedades estudadas. Programas de controle e profilaxia da mastite devem ser implementados enfocando as medidas de higiene na ordenha e correção dos fatores de risco identificados nesse estudo.<br>A subclinical mastitis study was conducted in nine dairy goat herds in the semi-arid region of ParaĂ­ba state, Northeastern Brazil, to determine the occurrence of infection, to evaluate microbiological and cellular profiles of the milk, to test the sensitivity of isolated microorganisms to antimicrobials, and to identify risk factors. One hundred thirty-one dairy goats were used, 261 samples were collected for microbiological culture and 131 samples for somatic cells count (SCC). During collection, the California Mastitis Test (CMT) was conducted and an epidemiological questionnaire was applied for each herd. There was bacterial growth in 30 samples (11.49%), with 25 (83.33%) coagulase-negative Staphylococcus and five (16.66%) Staphylococcus aureus isolated. The SCC mean was 1.39x10(6) cells/ml. CMT presented low sensitivity (46.7%) and low specificity (60.6%) compared with microbiological culture. Gentamicin and the association of neomycin, bacitracin and tetracyclin were the antimicrobials against which the microorganisms isolated showed 100% sensitivity. Penicillin and ampicillin had the greatest resistance rates (66.67% and 63.89%, respectively). Goat breeding is not the main activity on the farms and do not isolate diseased animals were identified as risk factors for caprine subclinical mastitis. Program for the control and prophylaxis of mastitis must be implemented focusing primarily on hygiene cares at milking and correction of the risk factors identified in this study
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