9 research outputs found

    First record of the Hauxwell's Thrush, Turdus hauxwelli Lawrence, 1869 (Aves: Turdidae) from Mato Grosso do Sul, Brazil, and geographic range extension

    Get PDF
    We report the first record of the Hauxwell’s Thrush, Turdus hauxwelli Lawrence, 1869 (Aves: Turdidae) in the state of Mato Grosso do Sul, Brazil. During an ornithological inventory conducted in Serra de Maracajú, municipality of Corguinho, we mist-netted and collected an individual of the species. The specimen was prepared as study skin and is held in the ornithological collection of the Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro. This record is located 472 km south of the closest visual/song record and 616 km southeast of the closest museum specimen, being the southernmost occurrence of this thrush

    Taxonomia Alfa de Tangara Peruviana (Desmarest, 1805) e Tangara Preciosa (Cabanis, 1851) (Aves, Passeriformes, Emberizidae)

    Get PDF
    Tangara peruviana and Tangara preciosa are rather similar taxa showing parapatric distribution along the Mata Atlântica areas of Southeastern and Southern Brazil, and have been thus treated as a single species with two subspecies throughout its history. Even those authors that regarded them as independent species, do so with reservations, furthering the case for future taxonomic revision. This paper reviews the taxonomic status of these species, reinforcing their validity based on color and morphometric analysis.Tangara peruviana occurs from Espírito Santo to Paraná, inhabiting mainly restingas, and being characterized by having a black back. Tangara preciosa occurs from the extreme northern Paraná southwards to Rio Grande do Sul (Brazil), Paraguay, Argentina and Uruguay, inhabiting coastal forests as well as interior forests with presence of Araucaria. It is diagnosable by its chestnut back patch.Tangara peruviana e Tangara preciosa são táxons muito semelhantes, de distribuição parapátrica na Mata Atlântica do Sudeste/Sul brasileiros e que foram, ao longo da história, seguidas vezes considerados uma única espécie com duas subespécies. Mesmo aqueles autores que os consideram táxons independentes o fizeram com restrições, deixando clara a necessidade de uma futura revisão de sua taxonomia. Este trabalho revê a taxonomia dessas espécies reforçando a sua validade com base em coloração e morfometria. Tangara peruviana ocorre do Espírito Santo até o Paraná, ocupando, principalmente, restingas e caracteriza- se pela presença de manto negro. Tangara preciosa ocorre do extremo norte do Paraná ao Rio Grande do Sul (Brasil), Paraguai, Argentina e Uruguai, ocupando desde florestas costeiras até interioranas com a presença de araucárias, sendo diagnosticável pela presença de um manto castanho ao invés de preto

    Seeing the forest through many trees: multi-taxon patterns of phylogenetic diversity in the Atlantic Forest hotspot

    Get PDF
    We combine phylogenetic and point locality data from selected lineages of the Atlantic Forest flora and fauna to compare spatial patterns of biodiversity sustained by the current configuration of forest remnants to a scenario of complete forest preservation. We then ask the question "how much biodiversity is likely lost, already"? Specifically, we assess how habitat loss likely impacted the climatic spaces occupied by the local species, the inferred composition of local communities and the spatial distribution of phylogenetic diversity and endemism

    Environmental correlates of taxonomic and phylogenetic diversity in the Atlantic Forest

    Get PDF
    Aim There is little consensus on which environmental variables are best at predicting multiple dimensions of diversity. We ask whether there are common environmental correlates of diversity, despite ecological differences, across nine clades of plants and animals distributed along a single rainforest domain. For that, we compare the environmental correlates of species richness, phylogenetic diversity, and phylogenetic endemism. Location Brazilian Atlantic Forest. Taxon:Five clades of plants (Bromelioideae, Miconieae, Bertolonia, Cambessedesieae, and the Fridericia and allies) and four clades of animals (butterlies in the tribe Ithomiini, frogs in the genera Boana and Proceratophrys, and birds in the subfamily Thraupinae). Methods Using curated occurrence localities and phylogenetic data, we generated maps of (a) species richness, (b) phylogenetic diversity, (c) residuals of phylogenetic diversity regressed on species richness, and (d) phylogenetic endemism for all groups. We also compiled a set of 30 environmental descriptors, including records of current temperature and precipitation, climatic stability over time, and topography. Through a machine learning framework, we explored the environmental correlates of each of these diversity measures for each group. Results The environmental variables used here were strong predictors of diversity for all studied groups. However, models for phylogenetic endemism had lower predictive power. Although patterns of diversity are different among groups, correlates of diversity are consistent across taxa. For both species richness and phylogenetic diversity, current precipitation and precipitation stability over time were consistently ranked among the variables that strongly correlate with diversity patterns. The correlates of phylogenetic endemism were less homogeneous across groups. The results suggest that including climate stability over time is important when predicting diversity measures that reflect historical components. Main conclusions Investigating environmental correlates of diversity for multiple clades and diversity measures in a single geographic area allows for a better understanding of common patterns across taxa. This study shows that environmental conditions, particularly precipitation, are good predictors of the patterns of species richness and phylogenetic diversity‐but not phylogenetic endemism‐across different Atlantic Forest groups.Additional co-authors: Marcelo Reginato, Karina Lucas Silva‐Brandão, André Victor Lucci Freitas, Renato Goldenberg, Lúcia G. Lohmann, Fabián A. Michelangeli, Cristina Miyaki, Miguel T. Rodrigues, Ana C. Carnava

    Alpha taxonomy of Synallaxis stictothorax group (Aves: Passeriformes: Furnariidae): Synallaxis chinchipensis Chapman, 1925 as a valid species, with a lectotype designation

    No full text
    The Synallaxis stictothorax group comprises poorly understood South American Furnariidae. This paper aims to present the morphological and nomenclatural aspects of this group, re-describing its valid species and to propose a fresh nomenclatural treatment for group members. Our analysis corroborated the specific status of the disputed taxon Synallaxis chinchipensis and refuted the diagnostic characteristics of the subspecies Synallaxis stictothorax maculata . Following the recommendations of the Code, a lectotype was designated to the nominal species Synallaxis hypochondriaca . We also draw attention to the need for continued review of the taxonomy of polytypic species, as this is the most efficient way of distinguishing natural groups from those that are merely historical artefacts of bird taxonomy

    Alpha taxonomy of Synallaxis stictothorax group (Aves: Passeriformes: Furnariidae): Synallaxis chinchipensis Chapman, 1925 as a valid species, with a lectotype designation

    No full text
    The Synallaxis stictothorax group comprises poorly understood South American Furnariidae. This paper aims to present the morphological and nomenclatural aspects of this group, re-describing its valid species and to propose a fresh nomenclatural treatment for group members. Our analysis corroborated the specific status of the disputed taxon Synallaxis chinchipensis and refuted the diagnostic characteristics of the subspecies Synallaxis stictothorax maculata . Following the recommendations of the Code, a lectotype was designated to the nominal species Synallaxis hypochondriaca . We also draw attention to the need for continued review of the taxonomy of polytypic species, as this is the most efficient way of distinguishing natural groups from those that are merely historical artefacts of bird taxonomy
    corecore