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(Not only) Thamnophilidae (1 Viewer)

Silva, S.M., C.C. Ribas, and A. Aleixo (2021)
Recent population differentiation in the habitat specialist Glossy Antshrike (Aves: Thamnophilidae) across Amazonian seasonally flooded forests
Ecology and Evolution (advance online publication)
doi: 10.1002/ece3.7951

We assessed population structure and the spatio-temporal pattern of diversification in the Glossy Antshrike Sakesphorus luctuosus (Aves, Thamnophilidae) to understand the processes shaping the evolutionary history of Amazonian floodplains and address unresolved taxonomic controversies surrounding its species limits. By targeting ultraconserved elements (UCEs) from 32 specimens of S. luctuosus, we identified independent lineages and estimated their differentiation, divergence times, and migration rates. We also estimated current and past demographic histories for each recovered lineage. We found evidence confirming that S. luctuosus consists of a single species, comprising at least four populations, with some highly admixed individuals and overall similar levels of migration between populations. We confirmed the differentiation of the Araguaia River basin population (S. l. araguayae) and gathered circumstantial evidence indicating that the taxon S. hagmanni may represent a highly introgressed population between three distinct phylogroups of S. luctuosus. Divergences between populations occurred during the last 1.2 mya. Signs of population expansions were detected for populations attributed to subspecies S. l. luctuosus, but not for the S. l. araguayae population. Our results support that S. luctuosus has had a complex population history, resulting from a high dependence on southeastern “clear water” seasonally flooded habitats and their availability through time. Spatial and demographic expansions toward the western “white water” flooded forests might be related to recent changes in connectivity and availability of these habitats. Our study reinforces the view that isolation due to absence of suitable habitat has been an important driver of population differentiation within Amazonian flooded forests, but also that differences between várzeas (“white water” floodplains, mostly in southwestern Amazonia) and igapós (“clear water” floodplains, especially located in the east) should be further explored as drivers of micro-evolution for terrestrial species.
 
Del-Rio, G., M.A. Rego, B.M. Whitney, F. Schunck, L.F. Silveira, B.C. Faircloth, and R.T. Brumfield (2021)
Displaced clines in an avian hybrid zone (Thamnophilidae: Rhegmatorhina) within an Amazonian interfluve
Evolution (advance online publication)
doi: 10.1111/evo.14377

Secondary contact between species often results in the formation of a hybrid zone, with the eventual fates of the hybridizing species dependent on evolutionary and ecological forces. We examine this process in the Amazon Basin by conducting the first genomic and phenotypic characterization of the hybrid zone formed after secondary contact between two obligate army-ant-followers: the White-breasted Antbird (Rhegmatorhina hoffmannsi) and the Harlequin Antbird (R. berlepschi). We found a major geographic displacement (∼120 km) between the mitochondrial and nuclear clines, and we explore potential hypotheses for the displacement, including sampling error, genetic drift, and asymmetric cytonuclear incompatibilities. We cannot exclude roles for sampling error and genetic drift in contributing to the discordance; however, the data suggest expansion and unidirectional introgression of hoffmannsi into the distribution of berlepschi.
 
Ribas, T.F.A., J.C. Pieczarka, D.K. Griffin, L.G. Kiazim, C.Y. Nagamachi, P.C.M. O´Brien, M.A. Ferguson-Smith, F. Yang, A. Aleixo, and R.E. O’Connor (2021)
Analysis of multiple chromosomal rearrangements in the genome of Willisornis vidua using BAC-FISH and chromosome painting on a supposed conserved karyotype
BMC Ecology and Evolution 21: 34
doi: 10.1186/s12862-021-01768-y

Background
Thamnophilidae birds are the result of a monophyletic radiation of insectivorous Passeriformes. They are a diverse group of 225 species and 45 genera and occur in lowlands and lower montane forests of Neotropics. Despite the large degree of diversity seen in this family, just four species of Thamnophilidae have been karyotyped with a diploid number ranging from 76 to 82 chromosomes. The karyotypic relationships within and between Thamnophilidae and another Passeriformes therefore remain poorly understood. Recent studies have identified the occurrence of intrachromosomal rearrangements in Passeriformes using in silico data and molecular cytogenetic tools. These results demonstrate that intrachromosomal rearrangements are more common in birds than previously thought and are likely to contribute to speciation events. With this in mind, we investigate the apparently conserved karyotype of Willisornis vidua, the Xingu Scale-backed Antbird, using a combination of molecular cytogenetic techniques including chromosome painting with probes derived from Gallus gallus (chicken) and Burhinus oedicnemus (stone curlew), combined with Bacterial Artificial Chromosome (BAC) probes derived from the same species. The goal was to investigate the occurrence of rearrangements in an apparently conserved karyotype in order to understand the evolutionary history and taxonomy of this species. In total, 78 BAC probes from the Gallus gallus and Taeniopygia guttata (the Zebra Finch) BAC libraries were tested, of which 40 were derived from Gallus gallus macrochromosomes 1–8, and 38 from microchromosomes 9–28.

Results
The karyotype is similar to typical Passeriformes karyotypes, with a diploid number of 2n = 80. Our chromosome painting results show that most of the Gallus gallus chromosomes are conserved, except GGA-1, 2 and 4, with some rearrangements identified among macro- and microchromosomes. BAC mapping revealed many intrachromosomal rearrangements, mainly inversions, when comparing Willisornis vidua karyotype with Gallus gallus, and corroborates the fissions revealed by chromosome painting.

Conclusions
Willisornis vidua presents multiple chromosomal rearrangements despite having a supposed conservative karyotype, demonstrating that our approach using a combination of FISH tools provides a higher resolution than previously obtained by chromosome painting alone. We also show that populations of Willisornis vidua appear conserved from a cytogenetic perspective, despite significant phylogeographic structure.
 
Christophe Gouraud (2022) Note on the nomenclature of Myrmothera guttata Vieillot, 1824 (Passeriformes, Thamnophilidae). Bulletin of the British Ornithologists' Club 142: 5-9
Note on the nomenclature of Myrmothera guttata Vieillot, 1824 (Passeriformes, Thamnophilidae)

Abstract
Work on the publication date of Bonnaterre & Vieillot's Tableau encyclopédique et méthodique calls into question the priority of some names in use today. Among these Myrmothera guttata Vieillot, 1824, proves to be a junior synonym of a name introduced earlier. The possible reversal of precedence is studied here in compliance with the International Code of Zoological Nomenclature.
 
Peter Kovalik said:
Christophe Gouraud (2022) Note on the nomenclature of Myrmothera guttata Vieillot, 1824 (Passeriformes, Thamnophilidae). Bulletin of the British Ornithologists' Club 142: 5-9
Note on the nomenclature of Myrmothera guttata Vieillot, 1824 (Passeriformes, Thamnophilidae)

Abstract
Work on the publication date of Bonnaterre & Vieillot's Tableau encyclopédique et méthodique calls into question the priority of some names in use today. Among these Myrmothera guttata Vieillot, 1824, proves to be a junior synonym of a name introduced earlier. The possible reversal of precedence is studied here in compliance with the International Code of Zoological Nomenclature.
Click to expand...

I know it's nitpicking, but the validity of the act of reversal of precedence is, unfortunately, questionable.

The last of the 25 references presented in the Appendix and intended to meet the requirement of ICZN 23.9.2:

Zimmer, K. & Isler, M. L. 2020. Rufous-bellied Antwren (Isleria guttata), version 1.0 in del Hoyo, J., Elliott, A., Sargatal, J., Christie, D. A. & de Juana, E. (eds.) Birds of the world. Cornell Lab of Ornithology, Ithaca, NY. Rufous-bellied Antwren - Isleria guttata - Birds of the World (accessed on 25 March 2021).​
​
...is an e-only work that fails to meet ICZN 8.1.3.2 (it's not in a format assuring "copies with fixed content and layout"), as well as, so far as I can assess, ICZN 8.5.3 (was not registered in ZooBank before being issued), hence does not qualify as a published work in the sense of the Code. As this work is not published at all in the sense of the Code, it can of course not be deemed to have been "published [...] in the immediately preceding 50 years" in the sense of ICZN 23.9.1.2.

Thus the Appendix only provides evidence of 24 works meeting the criterion of this article, instead of the required minimum of 25...
 
Tânia Fontes Quaresma, Áurea A Cronemberger, Romina Batista, and Alexandre Aleixo. 2022. Diversification and species limits in scale-backed antbirds (Willisornis: Thamnophilidae), an Amazonian endemic lineage. Zoological Journal of the Linnean Society XXX: zlac011.
https://doi.org/10.1093/zoolinnean/zlac011

Abstract
The genus Willisornis is endemic to the Amazon Basin, inhabiting upland terra firme forest, with two species and seven subspecies currently recognized. Despite numerous systematic studies, a taxonomically-dense sampled phylogeny for Willisornis is still lacking, which, combined with evidence of paraphyly and gene flow between its recognized species, underscores the uncertainty concerning species limits and evolutionary history of the genus. Here we present phylogenies and population genetic analyses, including all currently recognized Willisornis taxa, relating them to patterns of plumage variation, and reconstructing the spatiotemporal context of diversification in the genus. Our analyses have uncovered 13 independent genetic lineages in the genus, and the monophyly of all currently named taxa, which also showed robust plumage diagnoses. However, deeply coalesced genetic lineages were also found within most Willisornis taxa, for which no consistent variation in plumage was found. The diversification of the genus Willisornis is related to hydrographic and climate change cycles across Amazonia since the Plio-Pleistocene, with most genetic lineages originating in the past one million years. Based on our findings, we recommend the recognition of a total of six species in Willisornis (one of which polytypic) based on the congruency between deeply coalesced lineages and consistent plumage diagnoses.
 
Biogeography and diversification of bare-eyes, an endemic Amazonian clade
Lincoln Carneiro,Tibério C. T. Burlamaqui,Alexandre Aleixo,David C. Oren,José Maria Cardoso Da Silva
Abstract
Aim
Biotic interchange, speciation and extinction processes drive biotas assembling. However, the evolutionary outcomes of those mechanisms are complex and difficult to discriminate. Here, we investigate how these processes affect avian diversification in tropical forest regions and test the relative roles of vicariant speciation and biotic interchange on the assemblage of Amazonian biota through the reconstruction of the biogeographical history of bare-eyes using molecular markers.

Location
Amazon.

Taxon
Phlegopsis (Aves: Thamnophilidae).

Methods
We carried out a phylogenetic reconstruction of Phlegopsis based on four mtDNA and nuclear markers of 52 individuals from 21 localities representing all recognized taxa in the genus. We estimated phylogenetic relationships using both gene tree and species tree methods, demographic history, gene flow and divergence time to reconstruct the biogeographical history of the genus.

Results
Phylogenetic analyses recovered nine lineages delimited by some of the largest Amazonian rivers. Molecular dating and biogeographical studies showed that (1) most of the diversification in the genus occurred during the Quaternary; (2) vicariance was the most critical biogeographical process driving the history of this group and (3) two lineages are expanding their ranges, with one of them (P. n. nigromaculata) crossing the boundaries of areas of endemism.

Main conclusions
Our results reinforce the notion that continental biotas are assembled by alternating dispersal and vicariance events. In Phlegopsis, vicariance shaped the distribution and differentiation of most lineages, but one event of post-speciation dispersal made two lineages sympatric in Western Amazonia. Dispersal events within the Amazon are not random but are constrained by the characteristics of the species that are expanding their ranges and the features of the places that receive such species. Although most of the speciation events of Phlegopsis occurred during the Quaternary, there is no reason to assume that such events were driven by climatic-vegetation changes associated with the Milankovitch cycles.
 
"Note from Remsen: This is a proposal submitted to and rejected unanimously by NACC. Although the comments are not yet public, all voters agreed with the synopsis in the proposal, i.e., lack of information from the contact zone and minimal vocal differences."

Comments? How about the proposals themselves, unless this is something from 2021 or earlier. Nice to know they are voting on proposals. Be also nice to you know...get a glimpse on what might get voted on this year hint hint.
 
Elzen, R. van den, Berg, H.-M., Pilat, M., & Renner, S. C. (2023). Type specimens of Thamnophilidae Swainson, 1824 (Chordata, Animalia) in the Bird Collection of the Natural History Museum Vienna. Annalen des Naturhistorischen Museums in Wien, Serie B, 125 45–81.

Abstract
The annotated type list of Thamnophilidae (antbirds) in the Natural History Museum Vienna (NHMW) bird collection covers 52 taxa including 32 valid species, 18 subspecies and two taxa that are the basis of replacement names (nomina nova). 42 taxa are based on syntypes (including one uncertain case), eight on holotypes and one on paratypes. Among these, a majority is based on specimens collected by Johann Natterer from Brazil. Taxa represented by single specimens were collected by Friedrich Sellow, Wilhelm Hoffmanns, Henry George Watkins, Casimir Watkins, and George Flemming, respectively. Taxa and corresponding specimens, known to have been exchanged with or received from other institutions, are also documented.
 
What is the species called "Alapi de Cayenne" in this plate of the Planches Enluminées, and called Alapi by Buffon ? The black bird with the white spot on the back

t.8 - Planches enluminées d'histoire naturelle - Biodiversity Heritage Library

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Here I use d’Aubenton and/or de Buffon indiscriminately. Zimmer, 1926, Catalogue Edward E. Ayer Ornith. Library, pt. I, p. 105, has, “Buffon, in 1749, began the publication of his “Histoire Naturelle Générale,” completed in 1804 (after his death), in 44 quarto volumes. Of these, the nine volumes of birds (Vols. 23-31) appeared from 1770 to 1783 [edition quoted by Gmelin and by Hermann]. A separate edition of the same work in 71 volumes, 12mo, was begun in 1752 and completed in 1805, of which the ornithology occupied 18 volumes (Vols. 47-64) [edition quoted by Boddaert under D’Aubenton]. In 1765, Daubenton the younger (whose father was collaborator with Buffon in the “Hist. Nat. Générale”), instigated by Buffon, commenced the publication of a series of 1008 colored plates, 973 of which are of birds, drawn by Martinet. These were issued without text other than the vernacular names (often from Brisson) on their legends. They appeared in promiscuous order in 42 cahiers, from 1765 to 1780 or a little later in both large and small folio, and appear to lack any definite title or title-page, although the collection seems always to have been known as “Daubenton’s Planches Enluminées.””

For swift reference to the plates I often use “All the World’s Birds. Buffon’s Illustrated Natural History General and Particular of Birds”, S. Schmitt & C. Crémière (eds.), 2008 (English ed.), Rizzoli Intl. Pubs., New York (originally published in French 2007 (Éditions Citadelles & Mazenod, Paris)). Thomas Pennant’s, 1786, “Histoire Naturelle des Oiseaux, par Le Comte de Buffon, and Les Planches Enluminées, systematically disposed.” is also useful.
 

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