1,721,178 research outputs found
Diversification and species limits in scale-backed antbirds (Willisornis: Thamnophilidae), an Amazonian endemic lineage
No full textQuaresma, Tânia Fontes, Cronemberger, Áurea A., Batista, Romina, Aleixo, Alexandre (2022): Diversification and species limits in scale-backed antbirds (Willisornis: Thamnophilidae), an Amazonian endemic lineage. Zoological Journal of the Linnean Society 196 (4): 1408-1430, DOI: 10.1093/zoolinnean/zlac011, URL: http://dx.doi.org/10.1093/zoolinnean/zlac01
FIGURE 1. A in Pseudasthenes, a new genus of ovenbird (Aves: Passeriformes: Furnariidae)
No full textFIGURE 1. A simplified majority-rule Bayesian consensus tree of the Furnariidae (see text) that highlights the lack of a sister relationship between Pseudasthenes and Asthenes as well as the paraphyly of Asthenes, Schizoeaca, and Oreophylax. Asterisks represent nodes with a posterior probability of 1.0.Published as part of Aleixo, Alexandre, Chesser, Terry, Jr, Remsen & Brumfield, Robb T., 2010, Pseudasthenes, a new genus of ovenbird (Aves: Passeriformes: Furnariidae), pp. 61-68 in Zootaxa 2416 on page 65, DOI: 10.5281/zenodo.29404
Figure 4 in Diversification and species limits in scale-backed antbirds (Willisornis: Thamnophilidae), an Amazonian endemic lineage
No full textFigure 4. Graphs of BAPS clusters and geographic distribution of individuals analysed when considering A, mitochondrial (K = 8); B, BF5 (K = 3); C, MUSK (K = 6) datasets. Samples were plotted on the map in the pie chart format representing the percentage of admixture recovered by the bar graphs.Published as part of Quaresma, Tânia Fontes, Cronemberger, Áurea A., Batista, Romina & Aleixo, Alexandre, 2022, Diversification and species limits in scale-backed antbirds (Willisornis: Thamnophilidae), an Amazonian endemic lineage, pp. 1408-1430 in Zoological Journal of the Linnean Society 196 (4) on page 1416, DOI: 10.1093/zoolinnean/zlac011, http://zenodo.org/record/738668
FIGURE 2 in Certhiasomus, a new genus of woodcreeper (Aves: Passeriformes: Dendrocolaptidae)
No full textFIGURE 2. Majority-rule Bayesian consensus tree of the Dendrocolaptidae that highlights the lack of a sister relationship between Certhiasomus and Deconychura. Numbers above the branches indicate posterior probability values.Published as part of Derryberry, Elizabeth, Claramunt, Santiago, Chesser, Terry, Aleixo, Alexandre, Cracraft, Joel, Moyle, Robert G. & Brumfield, Robb T., 2010, Certhiasomus, a new genus of woodcreeper (Aves: Passeriformes: Dendrocolaptidae), pp. 44-50 in Zootaxa 2416 on page 48, DOI: 10.5281/zenodo.29391
Willisornis vidua VIDUA (HELLMAYR 1905
No full textWILLISORNIS VIDUA VIDUA (HELLMAYR, 1905) Taxonomy Genetic lineages with plumage characteristics discussed below can be assigned to W. v. vidua (type locality: Igarapé-Açu, state of Pará, in the Belém area of endemism; Peters, 1951). Plumage attributes Males similar to W. v. nigrigula overall, but without a black throat patch. Ventral region grey, with lighter throat. Females are also similar to those in W. v. nigrigula, but with the white interscapular spot absent or inconspicuous. Genetic differentiation Specimens with the plumage characteristics above belong to a genetic group with some geographic structuring recovered for the mitochondrial genes across the Tocantins River and which are referred herein as W. v. vidua A and W. v. vidua B. These groups are completely sorted for their mitochondrial DNA, but less so for the nuclear genes, occupying together the area comprised between the east bank of the Xingu eastward to Maranhão in easternmost Brazilian Amazonia (Fig. 1). Plumage variation We did not detect any conspicuous geographic variation in plumage that could be related to the comparatively shallow level of genetic structure recovered within this group.Published as part of Quaresma, Tânia Fontes, Cronemberger, Áurea A., Batista, Romina & Aleixo, Alexandre, 2022, Diversification and species limits in scale-backed antbirds (Willisornis: Thamnophilidae), an Amazonian endemic lineage, pp. 1408-1430 in Zoological Journal of the Linnean Society 196 (4) on page 1421, DOI: 10.1093/zoolinnean/zlac011, http://zenodo.org/record/738668
Willisornis poecilinotus GUTTURALIS
No full textWILLISORNIS POECILINOTUS GUTTURALIS (TODD, 1927) Taxonomy Genetic lineages with plumage characteristics described below can be unequivocally assigned to W. p. gutturalis (type locality: São Paulo de Olivença, on the south bank of the upper Amazon; Peters, 1951), distributed in south-western Amazonian Brazil and north-eastern Peru (Gill et al., 2022). Plumage attributes Males are similar to those of W. p. duidae lineages, but readily distinguished by a conspicuous a narrow black throat patch. Females are pale rufous above and below, paler underneath. ‘Lace’ similar as in males, in black−white colour. Tail pale rufous, with white spots in the middle part and on the terminal edges. Genetic differentiation Specimens with the plumage characteristics above belong to a highly distinct genetic lineages that is completely sorted for their mitochondrial DNA, but less so for the nuclear genes and which is distributed in a restricted area between the Juruá and Amazon/ Solimões rivers (Fig. 1). Plumage variation We have not identified conspicuous variations in plumage.Published as part of Quaresma, Tânia Fontes, Cronemberger, Áurea A., Batista, Romina & Aleixo, Alexandre, 2022, Diversification and species limits in scale-backed antbirds (Willisornis: Thamnophilidae), an Amazonian endemic lineage, pp. 1408-1430 in Zoological Journal of the Linnean Society 196 (4) on page 1420, DOI: 10.1093/zoolinnean/zlac011, http://zenodo.org/record/738668
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Willisornis poecilinotus GRISEIVENTRIS
No full textWILLISORNIS POECILINOTUS GRISEIVENTRIS (VON PELZELN, 1869) Taxonomy Genetic lineages sharing plumage characteristics discussed below are unequivocally assigned to W. p. griseiventris (type locality: Borba, on the right/ eastern bank of the Madeira River; Peters, 1951), distributed in south-eastern Peru, northern Bolivia and south-western Amazonian Brazil, eastwards to the upper Xingu River (Pulido-Santacruz et al., 2018; Gill et al., 2022). Plumage attributes Males similar to those in W. p. poecilinotus. Females pale plain rufous throughout the dorsal region, extending to the forehead and the sides of the head. ‘Dark-light lace’ on the back and wings absent. Throat and ventral region grey. Upper and under tail parts concolorous with the body, but with narrow distinct white terminal edges. Genetic differentiation Specimens with the plumage characteristics above belong to a widespread genetic lineage with two major geographic sister groups replacing each other across the Madeira River and referred herein as W. p. griseiventris A and W. p. griseiventris B. These two lineages are completely sorted for their mitochondrial DNA, but less so for the nuclear genes, occurring throughout most of south/central Amazonia, from the upper Juruá River eastward to the headwaters of the Xingu River (Fig. 1). Plumage variation We identified a geographic gradient in male plumage colour in W. p. griseiventris A and B running from west to east, with the darkest individuals found in the west (considering the overall body colour) and the palest in the east. Despite this clear trend, major shifts in the overall plumage colour intensity were not correlated with interclade boundaries and the presence of the Madeira River itself.Published as part of Quaresma, Tânia Fontes, Cronemberger, Áurea A., Batista, Romina & Aleixo, Alexandre, 2022, Diversification and species limits in scale-backed antbirds (Willisornis: Thamnophilidae), an Amazonian endemic lineage, pp. 1408-1430 in Zoological Journal of the Linnean Society 196 (4) on pages 1420-1421, DOI: 10.1093/zoolinnean/zlac011, http://zenodo.org/record/738668
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