Acrocephalus musae ssp. musae (Raiatea Reed-warbler)

[Deleted]

I thought we would already have a thread about this bird ?

Anyway, can You remember the picture made by Georg Forster, named 'Oriolus musae' ? It was drawn on Raiatea ! So it clearly shows that bird, not the nominate race as mentioned here:

elibrary.unm.edu/sora/Auk/v067n01/p0066-p0088.pdf

This pdf is nevertheless quite interesting !

[Deleted]

I meant this one:

piclib.nhm.ac.uk/piclib/www/comp.php?img=71575&frm=med&search=oriolus&last=1

[another specialist]

* Raiatea Reed Warbler, Acrocephalus caffer musae (Raiatea, Society Islands, 19th century?)

Another subspecies of the Tahiti Reed Warbler, known only from a drawing.

www.animalloverworld.com/birds/Probably_extinct_birds.html

[another specialist]

noisi said:

I meant this one:

piclib.nhm.ac.uk/piclib/www/comp.php?img=71575&frm=med&search=oriolus&last=1

[sebbe67]

A. c. musae (Forster, 1844), Raiatea (171 km2)

Original description
This bird was first collected in 1773 during Cook’s second expedition. The fate of the specimen(s) described by J.R. Forster is unknown, with only the painting by his son G. Forster remaining. Both the description (Forster 1844, p. 163) and the painting (Lysaght 1959) clearly indicate the origin of the birds as Ulietea (i.e. Raiatea).

Abundance
After Cook’s expedition, this taxon was only collected by Garrett in the 1870s (Wiglesworth 1891, Thomas 1979). When the WSSE visited Raiatea in January 1922 (Bryan 1920–35), reed warblers were not recorded and no observation has been made since then. This taxon is now considered extinct (Holyoak & Thibault 1984).

Habitat
Unknown.

Specimens in collections
Mees (1991) located in the Übersee-Museum (Bremen) the only specimen known today, collected by Garrett between 1870 and 1873: it was included in the Godeffroy collection in 1874 (Schmeltz 1874). Stresemann (1950) suggested that Sparrman’s type of caffer was more probably from Raiatea than from Tahiti, but this specimen has been destroyed (Medway 2004).

Source:Systematics of the extinct reed warblers Acrocephalus of the Society Islands of eastern Polynesia.

[Deleted]

According to sebbe's paper this bird should be called Acrocephalus musae musae.

[another specialist]

Jun 7, 2008 13:38:17 GMT @noisi said:

According to sebbe's paper this bird should be called Acrocephalus musae musae.

Thread been renamed from

Acrocephalus caffer musae to Acrocephalus musae musae

[another specialist]

There are several changes to the Reed-Warblers based on Cibois et al. (2011). The Saipan Reed-Warbler, Acrocephalus hiwae, Pagan Reed-Warbler, Acrocephalus yamashinae, and Mangareva Reed-Warbler, Acrocephalus astrolabii are split from Nightingale Reed-Warbler, Acrocephalus luscinius. Also, the Leeward Islands Reed-Warbler, Acrocephalus musae and Moorea Reed-Warbler, Acrocephalus longirostris are split from Tahiti Reed-Warbler, Acrocephalus caffer. Note that most of these taxa are now extinct. Cibois et al. also added sequenced more of the extant reed-warblers than previously (esp. A. luscinius, syrinx, and rehsei) and the phylogeny has been adjusted accordingly.
[Acrocephalidae, Sylvioidea I, 2.60]

jboyd.net/Taxo/changes.html

[Melanie]

Rearrangement of the reed warblers in the Pacific region

Charting the course of reed-warblers
across the Pacific islands
Alice Cibois1*, Jon S. Beadell2, Gary R. Graves3, Eric Pasquet4,5, Beth Slikas6,

si-pddr.si.edu/jspui/bitstream/10088/17642/1/vz_Cibois_et_al_2011_J_Biogeography--Charting_the_course_of_reed-warblers_across_the_Pacific_islands.pdf

[Sebbe]

Tahiti Reed-warbler (Acrocephalus cafer) is being split: list A. caffer as Endangered, A. musae as Extinct and A. longirostris as Critically Endangered (Possibly Extinct)?

A. musae has not been recorded since the early 1900s and should be listed as Extinct.

www.birdlife.org/globally-threatened-bird-forums/2016/09/tahiti-reed-warbler-acrocephalus-cafer-is-being-split-list-a-caffer-as-endangered-a-musae-as-extinct-and-a-longirostris-as-critically-endangered-possibly-extinct/

[Peter]

Taxonomy

Kingdom Phylum Class Order Family
Animalia Chordata Aves Passeriformes Acrocephalidae

Scientific Name: Acrocephalus musae
Species Authority: (Forster, 1844)
Common Name(s):
English – Forster’s Reed-warbler, Leeward Islands Reed-warbler, Leeward Islands Reed Warbler
Taxonomic Source(s): del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
Identification information:

Assessment Information 

Red List Category & Criteria: Extinct ver 3.1
Year Published: 2016
Date Assessed: 2016-10-01
Assessor(s): BirdLife International
Reviewer(s): Butchart, S. & Symes, A.
Contributor(s): Gouni, A., Raust, P. & Blainvillain, C.
Facilitator/Compiler(s): Khwaja, N., Mahood, S., O'Brien, M., Shutes, S., Stattersfield, A., Derhé, M. & Martin, R
Justification:
This species was lost from both islands in the late 1800s or early 1900s and is now Extinct.

Geographic Range

Range Description: Acrocephalus musae (including garretti) both went extinct on the islands of Raiatea and Huahine respectively, in the Society Islands, French Polynesia, in the late 1800s or early 1900s.
Countries occurrence:
Regionally extinct:
French Polynesia
Additional data:
♦ Continuing decline in area of occupancy (AOO): No
♦ Extreme fluctuations in area of occupancy (AOO): No ♦ Estimated extent of occurrence (EOO) - km2: 0
♦ Continuing decline in extent of occurrence (EOO): No ♦ Extreme fluctuations in extent of occurrence (EOO): No
♦ Number of Locations: 0 ♦ Continuing decline in number of locations: Unknown
♦ Extreme fluctuations in the number of locations: No
♦ Upper elevation limit (metres): 1700
Range Map: Click here to open the map viewer and explore range.

Population

Population: The population was lost from the both islands by the early 1900s.

Trend Justification: The population is no more.
Additional data:
♦ Number of mature individuals: 0 ♦ Continuing decline of mature individuals: No
♦ Extreme fluctuations: No ♦ Population severely fragmented: No
♦ Continuing decline in subpopulations: Unknown
♦ Extreme fluctuations in subpopulations: No ♦ All individuals in one subpopulation: No

Habitat and Ecology

Habitat and Ecology: It occurred in bamboo thickets and second growth forests in river valleys and hillsides to 1,700 m. It feds on insects but also takes lizards, small fish, crayfish, snails and nectar (Pratt et al. 1987, Thibault 1988). It was thought to breed exclusively in bamboo thickets (P. Raust in litt. 2007).
Systems: Terrestrial
Continuing decline in area, extent and/or quality of habitat: No
Movement patterns: Not a Migrant

Threats

Major Threat(s): The introduction of feral cats Felis catus, rats Rattus spp. (A. Gouni in litt. 2012) and many alien bird species, including the aggressive Common Myna Acridotheres tristis, may have contributed to its extinction (Thibault 1988, Seitre and Seitre 1991).

Citation: BirdLife International. 2016. Acrocephalus musae. The IUCN Red List of Threatened Species 2016: e.T22735592A104321144. Downloaded on 11 December 2016.

www.iucnredlist.org/details/22735592/0