Paraclaravis geoffroyi (Purple-winged Ground-dove)

[sebbe67]

The combination of highly specialised ecological requirements, and the loss and fragmentation of suitable habitat severely threaten this species. The lack of records in the last decade suggests that this species now has an extremely small population that is highly fragmented and declining owing to continuing habitat loss. It has therefore been uplisted to Critically Endangered.
Claravis godefrida is rare in south-east Brazil, with records from Bahia (four old records), Espírito Santo (1956 and 1986), Minas Gerais (1929, 20036), Rio de Janeiro (many old and several recent records), São Paulo (many old and three recent records from two localities), Paraná (one recent record) and Santa Catarina (one old and one recent record4). There have been a few records from east Paraguay (twice in the 19th century and one sighting at Itabó, Canindeyú, in 19943) and north Misiones, Argentina (four records at Iguazú National Park between 1913 and 19915, and Urugua-í Provincial Park1). There are records of flocks of up to 100 at the beginning of the 20th century, but the few post-1980 records involve no more than three birds at any one site4. This indicates an extremely severe decline, and its range is now highly fragmented.

[Melanie]

Syn. Claravis godefrida

Might be possibly extinct. Last reliable sighting was in 2007.

Source: Patterns of diversification in small New World ground doves are consistent with major geologic events

Andrew D. Sweet and Kevin P. Johnson
The Auk January 2015 : Vol. 132, Issue 1 (Jan 2015), pg(s) 300-312

www.iucnredlist.org/details/22690819/0

[Melanie]

Photo

www.arkive.org/purple-winged-ground-dove/claravis-geoffroyi/

[Peter]

Jan 4, 2015 17:27:27 GMT Melanie said:

Syn. Claravis godefrida

Might be possibly extinct. Last reliable sighting was in 2007.

Source: Patterns of diversification in small New World ground doves are consistent with major geologic events

Andrew D. Sweet and Kevin P. Johnson
The Auk January 2015 : Vol. 132, Issue 1 (Jan 2015), pg(s) 300-312

Melanie, do you have this paper?

[Melanie]

Jan 4, 2015 20:34:29 GMT Peter said:

Melanie, do you have this paper?

Yes, I can send you this paper.

[Melanie]

There are several photos of Purple-winged ground doves in captivity. The question whether they are still surviving. If this is the case this thread should be moved to extinct in the wild.

[Melanie]

I've thought I had moved that thread to extinct but now it is back in the endangered category. If you oppose with my decision please leave a feedback and tell why. Listed as possibly extinct in the National Red List of Brazil.

Lista Nacional Oficial de Espécies da Fauna Ameaçadas de Extinção.

Portaria No 444, de 17 de dezembro de 2014. Diário Oficial da União - Seção 1. Nº 245, quinta-feira, 18 de dezembro de 2014.

www.icmbio.gov.br/portal/images/stories/biodiversidade/fauna-brasileira/avaliacao-do-risco/PORTARIA_N%C2%BA_444_DE_17_DE_DEZEMBRO_DE_2014.pdf

I'm still the opinion that this thread belongs either in the extinct or at least in the extinct in the wild category as there was no reliable sighting of this species in the wild since 2007.

[Melanie]

Andrew D. Sweet, J. Dylan Maddox & Kevin P. Johnson. A complete molecular phylogeny of Claravis confirms its paraphyly within small New World ground-doves (Aves: Peristerinae) and implies multiple plumage state transitions. Journal of Avian Biology, Accepted manuscript online: 13 August 2016.

abstract

[Melanie]

A new genus for the Purple-winged gound dove

Paraclaravis, a new genus for the Purple-winged and Maroon-chested Ground-doves (Aves: Columbidae)
GEORGE SANGSTER, ANDREW D. SWEET, KEVIN P. JOHNSON

Abstract

Previous molecular phylogenetic analyses and new analyses reported here demonstrate that the genus Claravis is not monophyletic and comprises two lineages, one with the species pretiosa Ferrari-Pérez, 1886 (Blue Ground-dove), and the other with two species: geoffroyi Temminck, 1811 (Purple-winged Ground-dove) and mondetoura Bonaparte, 1856 (Maroon-chested Ground-dove). Because the generic name Claravis is typified by C. pretiosa (Ferrari-Pérez, 1886), a new genus, Paraclaravis gen. nov., is described for geoffroyi Temminck, 1811 and mondetoura Bonaparte, 1856.



Keywords

Aves, Ground-doves, morphology, nomenclature, Paraclaravis gen. nov., phylogenetics

www.mapress.com/j/zt/article/view/zootaxa.4461.1.10

[Sebbe]

Assessing the extinction probability of the Purple-winged Ground Dove, an enigmatic bamboo specialist.

The continued loss, fragmentation, and degradation of forest habitats is driving an extinction crisis for tropical and subtropical bird species. This loss is particularly acute in the Atlantic Forest of South America, where it is unclear whether several endemic bird species are extinct or extant. We collate and model spatiotemporal distributional data for one such ‘lost’ species, the Purple-winged Ground Dove Paraclaravis geoffroyi, a Critically Endangered endemic of the Atlantic Forest biome, which is nomadic and apparently dependent on masting bamboo stands. We compare its patterns of occurrence with that of a rare ‘control’ forest pigeon, the Violaceous Quail-Dove Geotrygon violacea, which occurs in regional sympatry. We also solicit information from aviculturists who formerly kept the species. We find that the two species share a similar historical recording rate but can find no documentary evidence (i.e. specimens, photos, video, sound recordings) for the persistence of Purple-winged Ground Dove in the wild after the 1980s, despite periodic sighting records, and after which time citizen scientists frequently documented the control species in the wild. Assessments of the probability that the species is extant are sensitive to the method of analysis, and whether records lacking documentary evidence are considered credible. Analysis of the temporal sequence of past records reveals the extent of the historical range contraction of the Purple-winged Ground Dove, while our species distribution model highlights the geographic search priorities for field ornithologists hoping to rediscover the species - aided by the first recording of the species vocalizations which we obtained from interviews with aviculturists. Our interviews also revealed that the species persisted in captivity from the 1970s until the 1990s (up to 150 birds), until a law was passed obstructing captive breeding efforts by private individuals, putting an end to perhaps the best chance we had to save the species from extinction.

www.frontiersin.org/articles/10.3389/fevo.2021.624959/abstract

[surroundx]

Footage of birds in captivity in Brazil.

[Sebbe]

It was assessed as Critically Endangered/Possibly Extinct in the 2022 edition of the Brazilian Red List.