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Pelecanoides (1 Viewer)
- Thread starter JustinJansen
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Xenospiza
Distracted
Peter Kovalik
Well-known member
Fischer JH, Debski I, Miskelly CM, Bost CA, Fromant A, Tennyson AJD, et al. (2018):
Peter Kovalik
Well-known member
Pelecanoides whenuahouensis
IOC Updates Diary Oct 8
Treat Pelecanoides whenuahouensis sp. nov. as a subspecies of P. georgicus
IOC Updates Diary Oct 8
Treat Pelecanoides whenuahouensis sp. nov. as a subspecies of P. georgicus
Jim LeNomenclatoriste
Je suis un mignon petit Traquet rubicole
Based on..?
l_raty
laurent raty
There are data in BOLD that suggests, in any case, that there may be some 'problem' with Pelecanoides georgicus from around New Zealand.
(The usual caveat here being that the data from this area are private and thus not directly accessible; the only thing you can see is where the sequences fall in identification trees -- like the one I attached below. This is not really 'new', by the way; I have an ID tree from 2009 where the pattern of polyphyly of georgicus was already visible, albeit with less sequences than today.)
(The usual caveat here being that the data from this area are private and thus not directly accessible; the only thing you can see is where the sequences fall in identification trees -- like the one I attached below. This is not really 'new', by the way; I have an ID tree from 2009 where the pattern of polyphyly of georgicus was already visible, albeit with less sequences than today.)
Peter Kovalik
Well-known member
BirdLife's Globally Threatened Bird Forums
South Georgia Diving-petrel (Pelecanoides georgicus) is being split: assessment of newly recognised taxa.
Posted on May 23, 2019 by Red List Team (BirdLife International)
Following a taxonomic reassessment, South Georgia Diving-petrel (Pelecanoides georgicus) is being split into South Georgia Diving-petrel (P. georgicus) and Whenua Hou Diving-petrel (P. whenuahouensis).
The newly-defined South Georgia Diving-petrel occurs in the southern Atlantic, Indian and Pacific Oceans, with remaining colonies in South Georgia (Georgias del Sur) in the south Atlantic, on the Prince Edward Islands (South Africa), Crozet and Kerguelen Islands (French Overseas Territories) and Heard Island (Australia) in the southern Indian Ocean and on Macquarie Island (Australia) and nearby Bishop Islet (Australia; Fischer et al. 2018a). The pre-split species was listed as Least Concern, with a global population estimated to number around 15,000,000 individuals (Brooke 2004) and suspected to be in decline owing to predation by invasive species (de Hoyo et al. 1992), and other ongoing threats. Following the split of the Whenua Hou Diving-petrel, the newly-defined South Georgia Diving-petrel is still likely to number in the millions (Fischer et al. 2018a), has a large range and is unlikely to be declining at a rate approaching the threshold for listing as threatened under Criterion A. Therefore, unless new information becomes available, South Georgia Diving-petrel will be retained as Least Concern.
The newly-split Whenua Hou Diving-petrel breeds only in the dunes of one bay of Codfish Island/Whenua Hou (New Zealand), where it has a very small population and may be declining (Fischer et al. 2018a). We are therefore undertaking a full assessment of the species’s Red List Category. Our current information on the species’s conservation status will now be compared to all Red List Criteria.
South Georgia Diving-petrel (Pelecanoides georgicus) is being split: assessment of newly recognised taxa.
Posted on May 23, 2019 by Red List Team (BirdLife International)
Following a taxonomic reassessment, South Georgia Diving-petrel (Pelecanoides georgicus) is being split into South Georgia Diving-petrel (P. georgicus) and Whenua Hou Diving-petrel (P. whenuahouensis).
The newly-defined South Georgia Diving-petrel occurs in the southern Atlantic, Indian and Pacific Oceans, with remaining colonies in South Georgia (Georgias del Sur) in the south Atlantic, on the Prince Edward Islands (South Africa), Crozet and Kerguelen Islands (French Overseas Territories) and Heard Island (Australia) in the southern Indian Ocean and on Macquarie Island (Australia) and nearby Bishop Islet (Australia; Fischer et al. 2018a). The pre-split species was listed as Least Concern, with a global population estimated to number around 15,000,000 individuals (Brooke 2004) and suspected to be in decline owing to predation by invasive species (de Hoyo et al. 1992), and other ongoing threats. Following the split of the Whenua Hou Diving-petrel, the newly-defined South Georgia Diving-petrel is still likely to number in the millions (Fischer et al. 2018a), has a large range and is unlikely to be declining at a rate approaching the threshold for listing as threatened under Criterion A. Therefore, unless new information becomes available, South Georgia Diving-petrel will be retained as Least Concern.
The newly-split Whenua Hou Diving-petrel breeds only in the dunes of one bay of Codfish Island/Whenua Hou (New Zealand), where it has a very small population and may be declining (Fischer et al. 2018a). We are therefore undertaking a full assessment of the species’s Red List Category. Our current information on the species’s conservation status will now be compared to all Red List Criteria.
thyoloalethe
Well-known member
Stephanie Grosser, Fiona Robertson, Lara D. Shepherd, Alan J. D. Tennyson, Colin M. Miskelly, Graeme A. Taylor & Bruce C. Robertson. 2021. Phylogenetic affinities of the Whenua Hou Diving Petrel: implications for conservation. Emu. Published online: 05 June 2021.
https://doi.org/10.1080/01584197.2021.1908148
Abstract
Diving petrels (genus Pelecanoides) are a group of small Southern Ocean seabirds whose taxonomy has remained problematic due to a lack of morphological diversity between species and limited availability of genetic data. Here we examine the phylogenetic relationships of the Pelecanoides diving petrels with analyses of the mitochondrial cytochrome b gene, focusing in particular, on the recently described and critically endangered Whenua Hou Diving Petrel (P. whenuahouensis). Pelecanoides whenuahouensis showed only minor sequence divergence from its sister species, the South Georgian Diving Petrel (P. georgicus), comparable to divergence levels observed between subspecies of the Common Diving Petrel (P. urinatrix). The paratype of P. whenuahouensis, which was collected from the now extinct population on the Auckland Islands, is genetically indistinguishable from P. georgicus raising the question of which species formerly bred on these subantarctic islands. Our genetic analyses provide insights into the phylogeography and evolutionary history of Pelecanoides and will help inform the conservation of the critically endangered Whenua Hou Diving Petrel.
https://doi.org/10.1080/01584197.2021.1908148
Abstract
Diving petrels (genus Pelecanoides) are a group of small Southern Ocean seabirds whose taxonomy has remained problematic due to a lack of morphological diversity between species and limited availability of genetic data. Here we examine the phylogenetic relationships of the Pelecanoides diving petrels with analyses of the mitochondrial cytochrome b gene, focusing in particular, on the recently described and critically endangered Whenua Hou Diving Petrel (P. whenuahouensis). Pelecanoides whenuahouensis showed only minor sequence divergence from its sister species, the South Georgian Diving Petrel (P. georgicus), comparable to divergence levels observed between subspecies of the Common Diving Petrel (P. urinatrix). The paratype of P. whenuahouensis, which was collected from the now extinct population on the Auckland Islands, is genetically indistinguishable from P. georgicus raising the question of which species formerly bred on these subantarctic islands. Our genetic analyses provide insights into the phylogeography and evolutionary history of Pelecanoides and will help inform the conservation of the critically endangered Whenua Hou Diving Petrel.
Jim LeNomenclatoriste
Je suis un mignon petit Traquet rubicole
Does this mean that the Whenua hou is not a valid species?
l_raty
laurent raty
They write that the limited divergence from georgicus "calls into question" its ranking as a species (rather than a subspecies), and that "any future taxonomic appraisal should carefully weigh up all available evidence, including genetic, morphological, ecological and behavioural data in support of either classification."
Besides this divergence issue, the status of the former (= extinct) Auckland population is now unclear -- the morphological analyses in the OD had made a specimen from this population a whenuahouensis, but this specimen's mtDNA now appears to be that of a georgicus.
albertonykus
Well-known member
Tennyson, A.J.D., A.L. Bond, J.H. Cooper, and J.H. Fischer (2022)
Lectotypification of the Subantarctic Diving Petrel Pelecanoides urinatrix exsul Salvin, 1896 (Procellariiformes: Procellariidae)
Bulletin of the British Ornithologists' Club 142: 302–309
doi: 10.25226/bboc.v142i3.2022.a3
The description of the Subantarctic Diving Petrel Pelecanoides urinatrix exsul Salvin, 1896, creates confusion because the type series contains specimens of three different taxa. Here we nominate a lectotype, thereby fixing the identity of this taxon, and restrict its type locality to the Baie de l'Observatoire, La Grande Terre, Kerguelen Islands, Indian Ocean. This stabilises its taxonomy.
Lectotypification of the Subantarctic Diving Petrel Pelecanoides urinatrix exsul Salvin, 1896 (Procellariiformes: Procellariidae)
Bulletin of the British Ornithologists' Club 142: 302–309
doi: 10.25226/bboc.v142i3.2022.a3
The description of the Subantarctic Diving Petrel Pelecanoides urinatrix exsul Salvin, 1896, creates confusion because the type series contains specimens of three different taxa. Here we nominate a lectotype, thereby fixing the identity of this taxon, and restrict its type locality to the Baie de l'Observatoire, La Grande Terre, Kerguelen Islands, Indian Ocean. This stabilises its taxonomy.
