| 1. |
- Adcox, K, et al.
(author)
-
PHENIX detector overview
- 2003
-
In: Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. - 0167-5087. ; 499:2-3, s. 469-479
-
Journal article (peer-reviewed)abstract
- The PHENIX detector is designed to perform a broad study of A-A, p-A, and p-p collisions to investigate nuclear matter under extreme conditions. A wide variety of probes, sensitive to all timescales, are used to study systematic variations with species and energy as well as to measure the spin structure of the nucleon. Designing for the needs of the heavy-ion and polarized-proton programs has produced a detector with unparalleled capabilities. PHENIX measures electron and muon pairs, photons, and hadrons with excellent energy and momentum resolution. The detector consists of a large number of subsystems that are discussed in other papers in this volume. The overall design parameters of the detector are presented. (C) 2002 Elsevier Science B.V. All rights reserved.
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| 2. |
- Adcox, K, et al.
(author)
-
Formation of dense partonic matter in relativistic nucleus-nucleus collisions at RHIC: Experimental evaluation by the PHENIX Collaboration
- 2005
-
In: Nuclear Physics, Section A. - : Elsevier BV. - 0375-9474. ; 757:1-2, s. 184-283
-
Research review (peer-reviewed)abstract
- Extensive experimental data from high-energy nucleus-nucleus collisions were recorded using the PHENIX detector at the Relativistic Heavy Ion Collider (RHIC). The comprehensive set of measurements from the first three years of RHIC operation includes charged particle multiplicities, transverse energy, yield ratios and spectra of identified hadrons in a wide range of transverse momenta (PT), elliptic flow, two-particle correlations, nonstatistical fluctuations, and suppression of particle production at high PT. The results are examined with an emphasis on implications for the formation of a new state of dense matter. We find that the state of matter created at RHIC cannot be described in terms of ordinary color neutral hadrons.
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| 3. |
- Adcox, K, et al.
(author)
-
Flow Measurements via Two-Particle Azimuthal Correlations in Au+Au Collisions at sqrt[sNN]=130 GeV
- 2002
-
In: Physical Review Letters. - 1079-7114. ; 89
-
Journal article (peer-reviewed)abstract
- Two-particle azimuthal correlation functions are presented for charged hadrons produced in Au+Au collisions at the Relativistic Heavy Ion Collider (sqrt[sNN]=130 GeV). The measurements permit determination of elliptic flow without event-by-event estimation of the reaction plane. The extracted elliptic flow values (v2) show significant sensitivity to both the collision centrality and the transverse momenta of emitted hadrons, suggesting rapid thermalization and relatively strong velocity fields. When scaled by the eccentricity of the collision zone ε, the scaled elliptic flow shows little or no dependence on centrality for charged hadrons with relatively low pT. A breakdown of this ε scaling is observed for charged hadrons with pT >1.0 GeV/c.
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| 4. |
- Wei, C. T., et al.
(author)
-
Cryptic species in a colorful genus: Integrative taxonomy of the bush robins (Aves, Muscicapidae, Tarsiger) suggests two overlooked species
- 2022
-
In: Molecular Phylogenetics and Evolution. - : Elsevier BV. - 1055-7903 .- 1095-9513. ; 175
-
Journal article (peer-reviewed)abstract
- Several cryptic avian species have been validated by recent integrative taxonomic efforts in the Sino-Himalayan mountains, indicating that avian diversity in this global biodiversity hotspot may be underestimated. In the present study, we investigated species limits in the genus Tarsiger, the bush robins, a group of montane forest specialists with high species richness in the Sino-Himalayan region. Based on comprehensive sampling of all 11 subspecies of the six currently recognized species, we applied an integrative taxonomic approach by combining multilocus, acoustic, plumage and morphometric analyses. Our results reveal that the isolated north-central Chinese populations of Tarsiger cyanurus, described as the subspecies albocoeruleus but usually considered invalid, is distinctive in genetics and vocalisation, but only marginally differentiated in morphology. We also found the Taiwan endemic T. indicus formosanus to be distinctive in genetics, song and morphology from T. i. indicus and T. i. yunnanensis of the Sino-Himalayan mountains. Moreover, Bayesian species delimitation using BPP suggests that both albocoeruleus and formosanus merit full species status. We propose their treatment as 'Qilian Bluetail' T. albocoeruleus and 'Taiwan Bush Robin' T. formosanus, respectively.
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| 5. |
- Adcox, K, et al.
(author)
-
Centrality dependence of the high (PT) charged hadron suppression in Au+Au collisions at root s(NN)=130 GeV
- 2003
-
In: Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics. - 0370-2693. ; 561:1-2, s. 82-92
-
Journal article (peer-reviewed)abstract
- PHENIX has measured the centrality dependence of charged hadron p(T) spectra from Au +An collisions at root(s)NN = 130 GeV The truncated mean p(T) decreases with centrality for p(T) > 2 GeV/c, indicating an apparent reduction of the contribution from hard scattering to high p(T) hadrdn production. For central collisions the yield at high p(T) is shown to be suppressed compared to binary nucleon-nucleon collision scaling of p + p, data. This suppression is monotonically increasing with centrality, but most of the change occurs below 30% centrality, i.e., for collisions with less than similar to140 participating nucleons. The observed p(T) and centrality dependence is consistent with the particle production predicted by models including hard scattering and subsequent energy loss of the scattered partons in the dense matter created in the collisions. (C) 2003 Published by Elsevier Science B.V.
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| 6. |
- Adcox, K, et al.
(author)
-
Event-by-event fluctuations in mean p(T) and mean E(T) in root s(NN)=130 GeVAu+Au collisions
- 2002
-
In: Physical Review C (Nuclear Physics). - 0556-2813. ; 66:2
-
Journal article (peer-reviewed)abstract
- Distributions of event-by-event fluctuations of the mean transverse momentum and mean transverse energy near mid-rapidity have been measured in Au+Au collisions at roots(NN)=130 GeV at the Relativistic Heavy-Ion Collider. By comparing the distributions to what is expected for statistically independent particle emission, the magnitude of nonstatistical fluctuations in mean transverse momentum is determined to be consistent with zero. Also, no significant nonrandom fluctuations in mean transverse energy are observed. By constructing a fluctuation model with two event classes that preserve the mean and variance of the semi-inclusive p(T) or e(T) spectra, we exclude a region of fluctuations in roots(NN)=130 GeV Au+Au collisions.
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| 7. |
- Adcox, K, et al.
(author)
-
Measurement of Lambda and (Lambda)over-bar particles in Au plus Au collisions at root s(NN)=130 GeV
- 2002
-
In: Physical Review Letters. - 1079-7114. ; 89:9
-
Journal article (peer-reviewed)abstract
- We present results on the measurement of Lambda and (&ULambda;) over bar production in Au+Au collisions at roots(NN)=130 GeV with the PHENIX detector at the Relativistic Heavy Ion Collider. The transverse momentum spectra were measured for minimum bias and for the 5% most central events. The (&ULambda;) over bar/Lambda ratios are constant as a function of p(T) and the number of participants. The measured net Lambda density is significantly larger than predicted by models based on hadronic strings (e.g., HIJING) but in approximate agreement with models which include the gluon-junction mechanism.
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| 8. |
- Adcox, K, et al.
(author)
-
Measurement of single electrons and implications for charm production in Au+Au collisions at root(NN)-N-S=130 GeV
- 2002
-
In: Physical Review Letters. - 1079-7114. ; 88:19
-
Journal article (peer-reviewed)abstract
- Transverse momentum spectra of electrons from Au+Au collisions at roots(NN) = 130 GeV have been measured at midrapidity by the PHENIX experiment at the Relativistic Heavy Ion Collider. The spectra show an excess above the background from photon conversions and light hadron decays. The electron signal is consistent with that expected from semileptonic decays of charm. The yield of the electron signal dN(e)/dy for p(T) > 0.8 GeV/c is 0.025 +/- 0.004(stat) +/- 0.010( syst) in central collisions, and the corresponding charm cross section is 380 +/- 60(stat) +/- 200(syst ) mub per binary nucleon-nucleon collision.
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| 9. |
- Adcox, K, et al.
(author)
-
Net charge fluctuations in Au+Au interactions root s(NN)=130 GeV
- 2002
-
In: Physical Review Letters. - 1079-7114. ; 89
-
Journal article (peer-reviewed)abstract
- Data from Au+ Au interactions at s(NN)=130 GeV, obtained with the PHENIX detector at the Relativistic Heavy-Ion Collider, are used to investigate local net charge fluctuations among particles produced near midrapidity. According to recent suggestions, such fluctuations may carry information from the quark-gluon plasma. This analysis shows that the fluctuations are dominated by a stochastic distribution of particles, but are also sensitive to other effects, like global charge conservation and resonance decays.
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| 10. |
- Adcox, K, et al.
(author)
-
Suppression of hadrons with large transverse momentum in central Au+Au collisions at root s(NN)=130 GeV
- 2002
-
In: Physical Review Letters. - 1079-7114. ; 88:2
-
Journal article (peer-reviewed)abstract
- Transverse momentum spectra for charged hadrons and for neutral pions in the range 1 Gev/c < P-T < 5 GeV/c have been measured by the PHENIX experiment at RHIC in Au + Au collisions at rootS(NN) = 130 GeV. At high p(T) the spectra from peripheral nuclear collisions are consistent with scaling the spectra from p + p collisions by the average number of binary nucleon-nucleon collisions. The spectra from central collisions are significantly suppressed when compared to the binary-scaled p + p expectation, and also when compared to similarly binary-scaled peripheral collisions, indicating a novel nuclear-medium effect in central nuclear collisions at RHIC energies.
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| 11. |
- Adcox, K, et al.
(author)
-
Transverse-mass dependence of two-pion correlations in Au+Au collisions at root(NN)-N-S=130 GeV
- 2002
-
In: Physical Review Letters. - 1079-7114. ; 88:19
-
Journal article (peer-reviewed)abstract
- Two-pion correlations in roots(NN) = 130 GeV Au+Au collisions at RHIC have been measured over a broad range of pair transverse momentum k(T) by the PHENIX experiment at RHIC. The k(T) dependent transverse radii are similar to results from heavy-ion collisions at roots(NN) = 4.1 , 4.9, and 17.3 GeV, whereas the longitudinal radius increases monotonically with beam energy. The ratio of the outwards to sidewards transverse radii (R-out/R-side) is consistent with unity and independent of k(T) .
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| 12. |
- Alström, Per, et al.
(author)
-
Multiple species within the Striated Prinia Prinia crinigera-Brown Prinia P. polychroa complex revealed through an integrative taxonomic approach
- 2020
-
In: Ibis. - : Wiley. - 0019-1019 .- 1474-919X. ; 162:3, s. 936-967
-
Journal article (peer-reviewed)abstract
- We re-evaluated the taxonomy of the Striated Prinia Prinia crinigera-Brown Prinia P. polychroa complex using molecular, morphological and vocal analyses. The extensive seasonal, sexual, age-related, geographical and taxon-specific variation in this complex has never before been adequately studied. As no previous genetic or vocal analyses have focused on this group, misinterpretation of taxonomic signals from limited conventional morphological study alone was likely. Using mitochondrial and nuclear DNA, we found that P. crinigera sensu lato (s.l.) comprises two non-sister groups of taxa (Himalayan crinigera and Chinese striata groups) that differ substantially morphologically and vocally and that are broadly sympatric in Yunnan Province, China. Prinia polychroa cooki (Myanmar) and P. p. rocki (southern Vietnam) are each morphologically, vocally and genetically distinct. Thai, Cambodian and Laotian populations formerly ascribed to P. p. cooki are morphologically and vocally most similar to and most closely related to Javan P. p. polychroa, and require a new name, proposed here. Prinia p. bangsi of Yunnan is part of the crinigera group rather than of P. polychroa, and hence there is no evidence for sympatry between P. polychroa s.l. and P. crinigera s.l., nor of the occurrence of P. polychroa in mainland China or Taiwan. We recommend the recognition of five species in the complex, with the following suggestions for new English names: Himalayan Prinia P. crinigera sensu stricto (s.s.; with subspecies striatula, crinigera, yunnanensis and bangsi); Chinese Prinia P. striata (subspecies catharia, parumstriata and striata); Burmese Prinia P. cooki (monotypic); Annam Prinia P. rocki (monotypic) and Deignan's Prinia P. polychroa s.s. (subspecies Javan polychroa and the new Southeast Asian taxon). This study underlines the importance of using multiple datasets for the elucidation of diversity of cryptic bird species and their evolutionary history and biogeography.
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| 13. |
- Collinson, Martin, et al.
(author)
-
Species boundaries in the Herring Gull complex
- 2008
-
In: British Birds. - 0007-0335. ; 101, s. 340-363
-
Journal article (pop. science, debate, etc.)abstract
- The BOURC Taxonomic Sub-committee (TSC) recently published recommendations for the taxonomy of the Herring Gull and Lesser Black-backed Gull complex (Sangster et al. 2007). Six species were recognised: Herring Gull Larus argentatus, Lesser Black-backed Gull L. fuscus, Caspian Gull L. cachinnans,Yellow-legged Gull L. michahellis, Armenian Gull L. armenicus and American Herring Gull L. smithsonianus.This paper reviews the evidence underlying these decisions and highlights the remaining areas of uncertainty where taxonomic revision may be required in future.
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| 14. |
- Collinson, Martin, et al.
(author)
-
Species limits within the genus Melanitta, the scoters
- 2006
-
In: British Birds. - 0007-0335. ; 99, s. 183-201
-
Journal article (pop. science, debate, etc.)abstract
- As part of its reassessment of the taxonomy of birds on the British List, the BOURC Taxonomic Sub-committee has assessed all six recognised taxa of scoters Melanitta against its previously published Species Guidelines (Helbig et al. 2002).We consider that, on the basis of evidence currently available, at least five species should be recognised: Common Scoter M. nigra, Black Scoter M. americana,Velvet Scoter M. fusca,White-winged Scoter M. deglandi and Surf Scoter M. perspicillata.The taxonomic status of the Asian subspecies of White-winged Scoter (stejnegeri) is uncertain, owing to insufficient information on several aspects of its morphology and behaviour. Provisionally, we suggest that it is best treated as conspecific with M. deglandi.
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| 15. |
- Helbig, Andreas J., et al.
(author)
-
Guidelines for assigning species rank
- 2002
-
In: Ibis. - 0019-1019 .- 1474-919X. ; 144:3, s. 518-525
-
Journal article (peer-reviewed)abstract
- Developments in several fields of study (including bio-acoustics and the analysis of DNA) together with reappraisals of the nature of species have impacted significantly on avian taxonomy. The BOU’s Taxonomic Subcommittee has developed guidelines for the applicationof species limits to sympatric, parapatric, allopatric and hybridizing taxa. These are published here to assist researchers understand the rationale behind the committee’s taxonomic recommendations relating to the British List.
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| 16. |
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| 17. |
- Irestedt, Martin, et al.
(author)
-
The spatio-temporal colonization and diversification across the Indo-Pacific by a 'great speciator' (Aves, Erythropitta erythrogaster).
- 2013
-
In: Proceedings of the Royal Society of London. Biological Sciences. - : The Royal Society. - 0962-8452 .- 1471-2954. ; 280:1759, s. 20130309-
-
Journal article (peer-reviewed)abstract
- The Indo-Pacific region has arguably been the most important area for the formulation of theories about biogeography and speciation, but modern studies of the tempo, mode and magnitude of diversification across this region are scarce. We study the biogeographic history and characterize levels of diversification in the wide-ranging passerine bird Erythropitta erythrogaster using molecular, phylogeographic and population genetics methods, as well as morphometric and plumage analyses. Our results suggest that E. erythrogaster colonized the Indo-Pacific during the Pleistocene in an eastward direction following a stepping stone pathway, and that sea-level fluctuations during the Pleistocene may have promoted gene flow only locally. A molecular species delimitation test suggests that several allopatric island populations of E. erythrogaster may be regarded as species. Most of these putative new species are further characterized by diagnostic differences in plumage. Our study reconfirms the E. erythrogaster complex as a 'great speciator': it represents a complex of up to 17 allopatrically distributed, reciprocally monophyletic and/or morphologically diagnosable species that originated during the Pleistocene. Our results support the view that observed latitudinal gradients of genetic divergence among avian sister species may have been affected by incomplete knowledge of taxonomic limits in tropical bird species.
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| 18. |
- Jonsson, Knud Andreas, et al.
(author)
-
Complete subspecies-level phylogeny of the Oriolidae (Aves: Passeriformes): Out of Australasia and return
- 2019
-
In: Molecular Phylogenetics and Evolution. - : Elsevier. - 1055-7903 .- 1095-9513. ; 137, s. 200-209
-
Journal article (peer-reviewed)abstract
- Old World orioles (Oriolidae) are medium-sized passerine birds confined largely to forested areas of Africa, Eurasia and Australasia. We present a new complete molecular (mtDNA) subspecies level phylogeny of the Oriolidae including all 113 taxa (35 species) together with a backbone phylogeny of 19 taxa from the main Oriolus clades based on (i) 21 nuclear genes, (ii) whole mito-genomes, and (iii) genome-wide ultraconserved elements. We use this phylogeny to assess systematic relationships and the biogeographical history of this avian family. Furthermore, we use morphological measurements to investigate the relationship between size and shape axes and upstream or back-colonization of this extensive island region from Asia. We show that several subspecies or groups of subspecies may warrant species rank and we find a continental example of two morphologically distinct species (O. mellianus/O. traillii) being genetically (mtDNA) very similar. Biogeographically, we confirm previous findings that members of the Oriolidae originated in Australo-Papua. Dispersal out of this area took place around 15 Mya to southeast Asia and Africa, and from Africa to the Palearctic followed by recolonization of the Indonesian and Philippine island region during the Plio-Pleistocene. Recolonisation of the Indonesian and Philippine islands coincided with an increase in body size, which may have facilitated the ability to co-exist with other congenerics.
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| 19. |
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| 20. |
- Jønsson, Knud Andreas, et al.
(author)
-
The evolution of mimicry of friarbirds by orioles (Aves : Passeriformes) in Australo-Pacific archipelagos.
- 2016
-
In: Proceedings of the Royal Society of London. Biological Sciences. - : The Royal Society. - 0962-8452 .- 1471-2954. ; 283:1833
-
Journal article (peer-reviewed)abstract
- Observations by Alfred Wallace and Jared Diamond of plumage similarities between co-occurring orioles (Oriolus) and friarbirds (Philemon) in the Malay archipelago led them to conclude that the former represent visual mimics of the latter. Here, we use molecular phylogenies and plumage reflectance measurements to test several key predictions of the mimicry hypothesis. We show that friarbirds originated before brown orioles, that the two groups did not co-speciate, although there is one plausible instance of co-speciation among species on the neighbouring Moluccan islands of Buru and Seram. Furthermore, we show that greater size disparity between model and mimic and a longer history of co-occurrence have resulted in a stronger plumage similarity (mimicry). This suggests that resemblance between orioles and friarbirds represents mimicry and that colonization of islands by brown orioles has been facilitated by their ability to mimic the aggressive friarbirds.
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| 21. |
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| 22. |
- Olsson, Urban, 1954, et al.
(author)
-
Systematic revision of the avian family Cisticolidae based on a multi-locus phylogeny of all genera
- 2013
-
In: Molecular Phylogenetics and Evolution. - : Elsevier BV. - 1055-7903 .- 1095-9513. ; 66:3, s. 790-799
-
Journal article (peer-reviewed)abstract
- The avian taxon Cisticolidae includes c. 110 species which are distributed throughout the tropical and subtropical parts of the Old World. We estimated the phylogeny of 47 species representing all genera assumed to be part of Cisticolidae based on sequence data from two mitochondrial and two nuclear markers, in total 3495 bp. Bayesian inference and maximum likelihood analyses resulted in a generally well-supported phylogeny which clarified the position of several previously poorly known taxa. The placement of Drymocichla, Malcorus, Micromacronus, Oreophilais, Phragmacia, Phyllolais, Poliolais and Urorhipis in Cisticolidae is corroborated, whereas Rhopophilus and Scotocerca are removed from Cisticolidae. Urorhipis and Heliolais are placed in the genus Prinia whereas Prinia burnesii is shown to be part of Timaliidae, and is placed in the genus Laticilla. Although not recovered by all single loci independently, four major clades were identified within Cisticolidae, and one of these is here described as a new taxon (Neomixinae).
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| 23. |
- Parkin, David T, et al.
(author)
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Species limits in Acrocephalus and Hippolais warblers from the Western Palearctic
- 2004
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In: British Birds. - 0007-0335. ; 97:6, s. 276-299
-
Journal article (pop. science, debate, etc.)abstract
- The taxonomic affiliations within the genera [Acrocephalus] and [Hippolais] have long been a matter for debate. Recent molecular and behavioural studies have provided a wealth of new data which can be used to analyse the evolutionary relationships of the Palearctic taxa in these genera. In this paper, we make a series of recommendations for changes in species limits, highlight some problem areas and discuss situations where more research is needed.
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| 24. |
- Parkin, David T., et al.
(author)
-
The development of guidelines to assist in defining species limits
- 2006
-
In: Acta Zoologica Sinica. - 0001-7302. ; 52, s. 435-438
-
Journal article (peer-reviewed)abstract
- This review describes the reasoning behind the “Guidelines for assessing species rank” developed by the Taxonomic Subcommittee of the British Ornithologists’ Union, and recently published in the Ibis. It sets out criteria for delimiting species taxa based primarily on the Evolutionary Species Concept and General Lineage Concept of Species (Mayden, 1997; de Queiroz, 1999), and secondarily on the Biological Species Concept, Recognition Species Concept and Phylogenetic Species Concept. Procedures and scenarios are canvassed for defining diagnosability and for determining species limits in situations of sympatry, parapatry, allopatry and hybrid zones. The role and significance of DNA sequence data is also addressed.
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| 25. |
- Robb, Magnus S., et al.
(author)
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The rediscovery of Strix butleri (Hume, 1878) in Oman and Iran, with molecular resolution of the identity of Strix omanensis Robb, van den Berg and Constantine, 2013
- 2016
-
In: Avian Research. - : Elsevier BV. - 2053-7166. ; 7
-
Journal article (peer-reviewed)abstract
- Background: Many species of owls (Strigidae) represent cryptic species and their taxonomic study is in flux. In recent years, two new species of owls of the genus Strix have been described from the Middle East by different research teams. It has been suggested that one of these species, S. omanensis, is not a valid species but taxonomic comparisons have been hampered by the lack of voucher specimens of S. omanensis, and the poor state of the holotype of S. butleri. Methods: Here we use new DNA sequence data to clarify the taxonomy and nomenclature of the S. butleri complex. We also report the capture of a single S. butleri sensu stricto in Mashhad, Iran. Results: A cytochrome b sequence of S. omanensis was found to be identical to that of the holotype of S. butleri, indicating that the name S. omanensis is best regarded as a junior synonym of S. butleri. The identity of the S. butleri captured in Mashhad, Iran, was confirmed using DNA sequence data. This represents a major (1300 km) range extension of this species. Conclusions: The population discovered in Oman in 2013 and originally named 'S. omanensis' actually represents the rediscovery of S. butleri, which was known from a single specimen and had not been recorded since 1878. The range of S. butleri extends into northeast Iran. Our study augments the body of evidence for the recognition of S. butleri and S. hadorami as separate species and highlights the importance of using multiple evidence to study cryptic owl species.
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| 26. |
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| 27. |
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| 28. |
- Sangster, George, 1970-
(author)
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Integrative taxonomy of birds : Studies into the nature, origin and delimitation of species
- 2013
-
Doctoral thesis (other academic/artistic)abstract
- Species are the basic currency in biodiversity studies but what constitutes a species has long been controversial. A major breakthough was the insight that most systematists agree that species are segments of population lineages, and that multiple lines of evidence should be employed and integrated, a procedure called integrative taxonomy. For this dissertation, I have studied integrative taxonomy from three angles. First, I address a series of influential claims about the nature and empirical basis of taxonomic change in birds. In Paper I, I show that taxonomic change is overwhelmingly data-driven. Thus, increasing numbers of species represent progress, not taxonomic inflation resulting from a change in species concept. In Paper II, I provide the first detailed quantitative analysis of how species are delimited in practice. This study shows that, contrary to widely held beliefs, avian taxonomy has not been dominated by the Biological Species Concept. Instead, species delimitation is increasingly pluralistic and eclectic. I argue that taxonomic practice is more unified than is implied by the controversy over species concepts. Integrative taxonomy can provide new insights into the speciation process. In Paper III, I show that two very different evolutionary patterns have been referred to by the term ‘ring species’ which are best distinguished using an integrative approach. Finally, two case studies of integrative taxonomy are presented. In Paper IV, we describe a new cryptic species of owl, the Rinjani Scops Owl (Otus jolandae), using evidence from plumage details, morphometrics, vocalizations and playback studies. Paper V presents a study of the evolutionary history of diversification in a widespread Indo-Pacific passerine, the Red-bellied Pitta (Erythropitta erythrogaster). Using molecular species delimitation methods and evidence from plumage details and morphometrics, we suggest that this species includes up to 17 species which originated during the Pleistocene
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| 29. |
- Sangster, G., et al.
(author)
-
Niltavinae, a new taxon of Old World flycatchers (Aves: Muscicapidae)
- 2016
-
In: Zootaxa. - : Magnolia Press. - 1175-5326 .- 1175-5334. ; 4196:3, s. 428-429
-
Journal article (peer-reviewed)abstract
- The relationships among Old World chats and flycatchers (Muscicapidae) have recently been clarified in two independent molecular phylogenetic studies (Sangster et al. 2010, Zuccon & Ericson 2010). Both studies recovered a well-supported clade of predominantly blue flycatchers of the genera Niltava, Cyornis, Eumyias and Cyanoptila, some species traditionally included in the genus Rhinomyias and one species traditionally included in Ficedula (F. monileger). The family-group name Niltavinae Sangster, Alström, Forsmark & Olsson, 2010, was introduced for this clade (Sangster et al. 2010). Unfortunately, our description of the new taxon Niltavinae did not include a diagnosis (sensu ICZN article 13.1.1) and thus inadvertently made this name unavailable for nomenclatural purposes (Zuccon 2011). The supplementary data associated with our original paper included evidence by which the taxon Niltavinae can be diagnosed: a 1 base pair (bp) deletion in the ornithine decarboxylase gene, as shown in Figure S1 in the online version (doi:10.1016/j.ympev.2010.07.008), but this was not mentioned in the printed version of our paper. Given that Niltavinae Sangster, Alström, Forsmark & Olsson, 2010 represents a nomen nudum, and the clade for which this name was intended thus remains unnamed, we here provide the following description.
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| 30. |
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| 31. |
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| 32. |
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| 33. |
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| 34. |
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| 35. |
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| 36. |
- Sangster, George, et al.
(author)
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Taxonomic recommendations for Western Palaearctic birds: 10th report
- 2015
-
In: Ibis. - : Wiley. - 0019-1019 .- 1474-919X. ; 157:1, s. 193-200
-
Journal article (peer-reviewed)abstract
- This paper is the tenth report of the Taxonomic Sub-Committee of the BOU Records Committee. Species-level decisions are based on criteria outlined by Helbig et al. (2002). The ninth report of the Sub-Committee was published by Sangster et al. (2013). Recommendations in this report fall into five categories: (i) recognition of higher taxa not recognised by Voous (Paroidea), (ii) changes in generic allocation (Melanocorypha leucoptera, Calandrella rufescens), (iii) changes in the taxonomic sequence of species (Alaudidae, Prunella), (iv) changes in species limits (Struthio camelus, Thalassarche cauta, Poecile lugubris, Phylloscopus tenellipes, Sylvia cantillans, Oenanthe lugens, Passer italiae), and (v) changes in nomenclature (Sylvia cantillans moltonii).
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| 37. |
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| 38. |
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| 39. |
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| 40. |
- Svensson, Lars, et al.
(author)
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Species limits in the Red-breasted Flycatcher
- 2005
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In: British Birds. - 0007-0335. ; 98:10, s. 538-541
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Journal article (pop. science, debate, etc.)abstract
- Traditionally, the Red-breasted Flycatcher [Ficedula parva] has been treated as a polytypic species with two subspecies: the western [parva] and the eastern [albicilla]. These taxa show clear differences in morphology and vocalisations and are diagnosably distinct, probably in both sexes and at all ages. There are striking differences in moult patterns between the two forms, and DNA-sequence data indicate that they are genetically divergent. It is clear that [parva] and [albicilla] are independent evolutionary lineages that are genetically distinct and fulfil the criteria for species recognition. It is recommended that they are treated as separate species, Red-breasted Flycatcher [F. parva] and Taiga Flycatcher [F. albicilla].
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