Columbiformes (1 Viewer)

[Jim LeNomenclatoriste]

Doesn't the paper say that all domestic birds are from livia?

Honestly ? I only read what interests me.

 

[l_raty]

The basal cluster (that is advocated to be split as "Columba gymnocyclus Gray") is only three of the specimens they included in their analysis, two from Mali, including the type of lividior Bates, and one from Ghana. These birds would be C. l. gymnocycla in current taxonomy, even though they are in the range of "lividor" on the map. (They did not study any specimen from the range they attributed to gymnocycla on their map (coastal Senegambia only -- the type locality of gymnocycla is Senegal). But, anyway, I don't know what the respective ranges of gymnocycla and lividior on this map are based on -- my impression from a brief search is that, before being synonymized, lividior was regarded as known from the type locality only.)

I'd not be really comfortable with a split based on such limited sampling. (No topotypical samples for gymnocephala -- we cannot be fully sure that the name applies. The closest samples from further E in Africa are of C. l. targia, from Darfur; these showed some admixture from the W African group (see Fig. 2.C.), despite the huge distance separating them from the accepted range of gymnocephala -- we cannot be sure either of what is happening in between. What if the admixture increases progressively as we go west from Darfur ?)

PS -- David & Gosselin on gymnocyclus vs. gymnocycla : v.122 (2002) - Bulletin of the British Ornithologists' Club - Biodiversity Heritage Library

 

[Xenospiza]

Thanks Laurent!
My views of David & Gosselin's knowledge of classical languages are yet again proven by them claiming κύκλος is an adjective.

κύκλος - Wiktionary, the free dictionary

en.wiktionary.org

 

[l_raty]

Thanks Laurent!
My views of David & Gosselin's knowledge of classical languages are yet again proven by them claiming κύκλος is an adjective.

κύκλος - Wiktionary, the free dictionary

en.wiktionary.org

Of course they don't.
They say γυμνόκυκλος, -ον is adjectival, because it is formed in the way adjectives are formed in ancient Greek, and would have been understood as one by anyone speaking the language, even though it is not found as such in dictionaries.
(But χρυσεόκυκλος, -ον is in dictionaries, and is unquestionably adjectival.)
Insisting that γυμνόκυκλος is not a Greek adjective is akin to insisting that "green-headed" is not an English adjective, while "red-headed" is, because the latter appears as such in English dictionaries, while the former does not.

 

[Peter Kovalik]

Peters, C., Geary, M., Hosie, C., Nelson, H., Rusk, B., and Muir, A. (2023). Non-invasive sampling reveals low mitochondrial genetic diversity for an island endemic species: the critically endangered Grenada Dove Leptotila wellsi. Ecology and Evolution 13: e10767. https://doi.org/10.1002/ece3.10767

Abstract
As an island endemic with a decreasing population, the critically endangered Grenada Dove Leptotila wellsi is threatened by accelerated loss of genetic diversity resulting from ongoing habitat fragmentation. Small, threatened populations are difficult to sample directly but advances in molecular methods mean that non-invasive samples can be used. We performed the first assessment of genetic diversity of populations of Grenada Dove by (a) assessing mtDNA genetic diversity in the only two areas of occupancy on Grenada, (b) defining the number of haplotypes present at each site and (c) evaluating evidence of isolation between sites. We used non-invasively collected samples from two locations: Mt Hartman (n = 18) and Perseverance (n = 12). DNA extraction and PCR were used to amplify 1751 bps of mtDNA from two mitochondrial markers: NADH dehydrogenase 2 (ND2) and Cytochrome b (Cyt b). Haplotype diversity (h) of 0.4, a nucleotide diversity (π) of 0.00023 and two unique haplotypes were identified within the ND2 sequences; a single haplotype was identified within the Cyt b sequences. Of the two haplotypes identified, the most common haplotype (haplotype A = 73.9%) was observed at both sites and the other (haplotype B = 26.1%) was unique to Perseverance. Our results show low mitochondrial genetic diversity and clear evidence for genetically isolated populations. The Grenada Dove needs urgent conservation action, including habitat protection and potentially augmentation of gene flow by translocation in order to increase genetic resilience and diversity with the ultimate aim of securing the long-term survival of this critically endangered species.

 

[Jim LeNomenclatoriste]

https://onlinelibrary.wiley.com/doi/abs/10.1111/ibi.13305

Nash, J.A., Harrington, R.C., Zyskowski, K., Near, T.J. and Prum, R.O. (2024), Species status and phylogenetic relationships of the enigmatic Negros Fruit Dove (Ptilinopus arcanus). Ibis. https://doi.org/10.1111/ibi.13305

Abstract
The Negros Fruit Dove Ptilinopus arcanus is an enigmatic bird known only from a single specimen collected on Negros Island, Philippines, in 1953. We extracted and sequenced ultra-conserved elements from historical toe-pad samples of the type specimen of P. arcanus and 27 other species of ptilinopine doves to investigate the species status and phylogenetic relationships of this taxon. We establish that P. arcanus represents a valid species, resolve its phylogenetic position at the base of the radiation of ‘core’ Ptilinopus fruit doves, and estimate that P. arcanus diverged from its most recent common ancestor several million years before Negros Island emerged from the seafloor. We also perform an ancestral range reconstruction to evaluate the effect of different altitudinal preferences on the putative historical range of this species, and we discuss how these findings can inform future efforts to relocate and potentially conserve this species


Please, described a new genus for it !!! .

 

[dnsallen]

https://onlinelibrary.wiley.com/doi/abs/10.1111/ibi.13305

Nash, J.A., Harrington, R.C., Zyskowski, K., Near, T.J. and Prum, R.O. (2024), Species status and phylogenetic relationships of the enigmatic Negros Fruit Dove (Ptilinopus arcanus). Ibis. https://doi.org/10.1111/ibi.13305

Abstract
The Negros Fruit Dove Ptilinopus arcanus is an enigmatic bird known only from a single specimen collected on Negros Island, Philippines, in 1953. We extracted and sequenced ultra-conserved elements from historical toe-pad samples of the type specimen of P. arcanus and 27 other species of ptilinopine doves to investigate the species status and phylogenetic relationships of this taxon. We establish that P. arcanus represents a valid species, resolve its phylogenetic position at the base of the radiation of ‘core’ Ptilinopus fruit doves, and estimate that P. arcanus diverged from its most recent common ancestor several million years before Negros Island emerged from the seafloor. We also perform an ancestral range reconstruction to evaluate the effect of different altitudinal preferences on the putative historical range of this species, and we discuss how these findings can inform future efforts to relocate and potentially conserve this species


Please, described a new genus for it !!! .

Is this available anywhere beyond the abstract?

 

[Peter Kovalik]

Is this available anywhere beyond the abstract?

if you want full pdf please send me your email address in PM

 

[Jim LeNomenclatoriste]

if you want full pdf please send me your email address in PM

You know my mail

 

[Jim LeNomenclatoriste]

You know my mail

Sorry Peter, I already have this paper. I confused it with the article on sunbirds 🤣🤣🤣

 

[Acanthis]

https://onlinelibrary.wiley.com/doi/abs/10.1111/ibi.13305

Nash, J.A., Harrington, R.C., Zyskowski, K., Near, T.J. and Prum, R.O. (2024), Species status and phylogenetic relationships of the enigmatic Negros Fruit Dove (Ptilinopus arcanus). Ibis. https://doi.org/10.1111/ibi.13305

Abstract
The Negros Fruit Dove Ptilinopus arcanus is an enigmatic bird known only from a single specimen collected on Negros Island, Philippines, in 1953. We extracted and sequenced ultra-conserved elements from historical toe-pad samples of the type specimen of P. arcanus and 27 other species of ptilinopine doves to investigate the species status and phylogenetic relationships of this taxon. We establish that P. arcanus represents a valid species, resolve its phylogenetic position at the base of the radiation of ‘core’ Ptilinopus fruit doves, and estimate that P. arcanus diverged from its most recent common ancestor several million years before Negros Island emerged from the seafloor. We also perform an ancestral range reconstruction to evaluate the effect of different altitudinal preferences on the putative historical range of this species, and we discuss how these findings can inform future efforts to relocate and potentially conserve this species


Please, described a new genus for it !!! .

Oui, that was my first thought too!😁

 

[Jim LeNomenclatoriste]

Oui, that was my first thought too!😁

Or put Alectroenas on Ptilinopus 😏

 

[Acanthis]

Or put Alectroenas on Ptilinopus 😏

Tricky!
Somewhere near Haemataena and/or Chrysoena?

 

[Jim LeNomenclatoriste]

Tricky!

Mouahahahaha

 

[dnsallen]

https://onlinelibrary.wiley.com/doi/abs/10.1111/ibi.13305

Nash, J.A., Harrington, R.C., Zyskowski, K., Near, T.J. and Prum, R.O. (2024), Species status and phylogenetic relationships of the enigmatic Negros Fruit Dove (Ptilinopus arcanus). Ibis. https://doi.org/10.1111/ibi.13305

Abstract
The Negros Fruit Dove Ptilinopus arcanus is an enigmatic bird known only from a single specimen collected on Negros Island, Philippines, in 1953. We extracted and sequenced ultra-conserved elements from historical toe-pad samples of the type specimen of P. arcanus and 27 other species of ptilinopine doves to investigate the species status and phylogenetic relationships of this taxon. We establish that P. arcanus represents a valid species, resolve its phylogenetic position at the base of the radiation of ‘core’ Ptilinopus fruit doves, and estimate that P. arcanus diverged from its most recent common ancestor several million years before Negros Island emerged from the seafloor. We also perform an ancestral range reconstruction to evaluate the effect of different altitudinal preferences on the putative historical range of this species, and we discuss how these findings can inform future efforts to relocate and potentially conserve this species


Please, described a new genus for it !!! .

Please don't describe a new genus until the stats have been put under a microscope. The specimen has a lot of similarities with a juvenile Black-naped FD. See here for example ML609413533 - Black-naped Fruit-Dove - Macaulay Library
and it does occur very close to this species in figs 3, 4, 5.

 

[Jim LeNomenclatoriste]

and it does occur very close to this species in figs 3, 4, 5.

I must not see the same figures as you because arcanus is alone on his branch, sister of all the Ptilinopus. 🤔

 

[dnsallen]

I must not see the same figures as you because arcanus is alone on his branch, sister of all the Ptilinopus. 🤔

It is possible I don't fully understand what the trees of figs 3, 4, 5 represent, but it appears to me that arcanus is closest to melanospilus (of all the other Ptilinopus) in the diagrams.

 

[Acanthis]

Please don't describe a new genus until the stats have been put under a microscope. The specimen has a lot of similarities with a juvenile Black-naped FD. See here for example ML609413533 - Black-naped Fruit-Dove - Macaulay Library
and it does occur very close to this species in figs 3, 4, 5.

If I recall the tale of its discovery correctly a pair were shot but one individual couldn't be recovered. Of course it may have been two juveniles together....

In the figs. arcanus branches off between melanospilus and luteovirens which appear separate in this paper, though are grouped together in:

Paul Oliver, Andrew Hugall, Audrey Prasetya, et al. Oligo-Miocene colonisation and radiation within South-West Pacific arc terranes underpinned repeated upstream continental colonisations in pigeons (Columbiformes). Authorea. October 11, 2022.
DOI: 10.22541/au.166549195.57268331/v1

I think from Jim's comment re. arcanus being basal to all other Ptilinopus he has sheared off the much earlier diverging Ramphiculus and Megaloprepia and removed them from consideration

 

[Jim LeNomenclatoriste]

Orlando J. Espinosa-Chávez, Adolfo G. Navarro-Sigüenza, Hernando Rodríguez-Correa, Luis A. Sánchez-González. 2024. Highly divergent sympatric lineages of Leptotila verreauxi (aves: Columbidae) suggest a secondary contact area in the Isthmus of Tehuantepec, Mexico. Avian Research, 100160,

https://www.sciencedirect.com/science/article/pii/S2053716624000033

Abstract
Due to a complex geological and biotic history, the Isthmus of Tehuantepec (IT), has been long recognized as a driver for the evolutionary divergence of numerous lowland and highland taxa. Widely distributed in the lowlands of the American continent, the White-Tipped Dove (Leptotila verreauxi) is a polytypic species with 13 recognized subspecies. Four of these have been recorded in Mexico, and the distribution of three abuts at the IT, suggesting a contact zone. To estimate phylogenetic patterns, divergence times and genetic differentiation, we examined two mtDNA (ND2 and COI) and one nDNA (β-fibint 7) markers. We also used correlative ecological niche models (ENM) to assess whether ecological differences across the IT may have acted as a biogeographical boundary. We estimated paleodistributions during the Middle Holocene, Last Glacial Maximum and Last Interglacial, to evaluate the influence of climate changes on the distribution and demographic changes. Our results showed genetically distinct lineages that diverged approximately 2.5 million years ago. Climatic and ecological factors may have played a dual role in promoting differentiation, but also in the formation of a secondary contact zone in the southern IT. Our ecological niche comparisons indicated that the ecological niche of sympatric lineages at the IT are not identical, suggesting niches divergence; in addition, environmental niche models across the region indicated no abrupt biogeographic barriers, but the presence of regions with low suitability. These results suggest that genetic differentiation originated by a vicariant event probably related to environmental factors favored the evolution of different ecological niches. Also, the absence of a biogeographic barrier but the presence of less suitable areas in the contact regions, suggest that secondary contact zones may be also maintained by climatic factors for the eastern group, but also by biotic interactions for the western group.

 

[Peter Kovalik]

Hein van Grouw, Wim Dekkers, and Kees Rookmaaker (2024) Third time lucky for Forsten's pigeon; taeniura, forsterii, forsteni. Bulletin of the British Ornithologists' Club 144: 29-38.
Third time lucky for Forsten's pigeon; taeniura, forsterii, forsteni

Abstract
Temminck's major work on pigeons became famous partly because of the complementary plates by Knip, even though Knip had used subterfuge to make the published work appear to be hers. It was generally assumed that this permanently ended their partnership as the evidence for renewed cooperation between the two, present in Knip's second pigeon book, was widely overlooked. A rediscovered letter from Temminck to Knip confirms the renewed partnership, with Temminck supplying specimens of new species of pigeon to be included in Knip's work. One of these was a Ducula from Sulawesi, collected by the Dutch naturalist Forsten. Due to a spelling mistake, this species initially did not receive the name intended by Temminck. Although the error was subsequently corrected by Bonaparte, his action is invalid in the eyes of the International code for zoological nomenclature. Another article in the Code, however, dealing with a different matter, is applicable and rules that the ‘amended’ name is valid after all.