Hypsipetes siquijorensis (Steere 1890)

Aderyn a rhywogaeth o adar yw Bwlbwl bronresog (sy'n enw gwrywaidd; enw lluosog: bwlbwliaid bronresog) a adnabyddir hefyd gyda'i enw gwyddonol Hypsipetes siquijorensis; yr enw Saesneg arno yw Slaty-crowned bulbul. Mae'n perthyn i deulu'r Bwlbwliaid (Lladin: Pycnonotidae) sydd yn urdd y Passeriformes.^[1]

Talfyrir yr enw Lladin yn aml yn H. siquijorensis, sef enw'r rhywogaeth.^[2]

Teulu

Mae'r bwlbwl bronresog yn perthyn i deulu'r Bwlbwliaid (Lladin: Pycnonotidae). Dyma rai o aelodau eraill y teulu:

Rhestr Wicidata:

rhywogaeth enw tacson delwedd Bwlbwl brongoch Hypsipetes philippinus Bwlbwl bronresog Hypsipetes siquijorensis Bwlbwl Comoro Hypsipetes parvirostris Bwlbwl daear Phyllastrephus terrestris Bwlbwl du Hypsipetes leucocephalus Bwlbwl Madagasgar Hypsipetes madagascariensis Bwlbwl melynaidd Hypsipetes everetti Bwlbwl pigbraff Hypsipetes crassirostris Bwlbwl pigflew cyffredin Bleda syndactylus Bwlbwl Réunion Hypsipetes borbonicus Bwlbwl Shelley Arizelocichla masukuensis Bwlbwliaid bochresog Arizelocichla milanjensis

Gweler hefyd

• Rhestr Goch yr IUCN

Cyfeiriadau

The streak-breasted bulbul (Hypsipetes siquijorensis) is a songbird species in the bulbul family, Pycnonotidae.

It is endemic to the Philippines being found in the Visayas on the islands of Tablas Island, Siquijor, Cebu and Romblon where its natural habitat is tropical moist lowland forest and tropical moist shrubland. It is threatened by habitat loss and hunting.^[2]

Description and taxonomy

EBird describes the bird as "A medium-sized bird of foothill forest and edge as well as more open wooded areas. Fairly large for a bulbul. Dark brown above with a pale belly and a warm brown chest and throat with pale streaking. Note brown cheek and black crown that can be raised into a spiky crest. Similar to Philippine Bulbul, but larger, with a longer bill, a black crown, and a paler throat and chest. Voice consists of rather unpleasant grating chatters and harsh downslurred squeals."^[3] However, this description mostly refers to the siquijorensis sub-species (potentially a split). The other two sub-species have much lighter colored appearances and no spiky crown. ^[4]

The streak-breasted bulbul was originally described in the genus Iole and later placed in the genus Ixos before being re-classified to the genus Hypsipetes in 2010.^[5] Alternate names for the streak-breasted bulbul include the mottle-breasted bulbul and slaty-crowned bulbul.

Subspecies

Three subspecies are currently recognized:^[6] It has been proposed that each should be elevated to the full species level with each having different calls and considerable differences in appearances.

• Romblon bulbul (H. s. cinereiceps) - (Bourns & Worcester, 1894): Originally described as a separate species in the genus Iole. Found on Tablas and Romblon. Gray spiky crown and overall appearance with a large bill.
• Cebu bulbul (H. s. monticola) - (Bourns & Worcester, 1894): Originally described as a separate species in the genus Iole. Alternatively named the Cebu slaty-crowned bulbul. Found on Cebu. White throat and overall paler appearance. Thought extinct until its rediscovery in 1996.
• Siquijor bulbul (H. s. siquijorensis) - (Steere, 1890): Found on Siquijor. Slightly larger with a spiky black crest.

Habitat and conservation status

It is found in tropical lowland moist primary and secondary forest. It is able to tolerate degraded habitat provided there is nearby forest but occurs in lower densities in these areas.

IUCN has assessed this bird as endangered with population estimates being 2,500 to 9,999 mature individuals and continuing to decrease. Although it can tolerate less than ideal forest, this species' main threat is habitat loss with wholesale clearance of forest habitats as a result of logging, agricultural conversion and mining activities occurring within the range. Siquijor, Cebu and Tablas Island are some of the most deforested islands with just 8 km² of forest remaining on Siquijor and 15km² on Cebu. It appears to face interspecies competition from the Yellow-vented bulbul and the Philippine bulbul.

Conservation actions proposed include: the promotion of improved management of the existing reserves to prevent further habitat deterioration on Siquijor, Cebu and Romblon; the designation of further protected areas as appropriate, particularly on Tablas Island; the promotion of forest restoration and regeneration on Tablas Island; and on Cebu, investigation into the potential for targeted conservation, including captive breeding, of the subspecies monticola.^[7]

References

• Gregory, Steven M. (2000): Nomenclature of the Hypsipetes Bulbuls (Pycnonotidae). Forktail 16: 164–166. PDF fulltext
• Moyle, Robert G. & Marks, Ben D. (2006): Phylogenetic relationships of the bulbuls (Aves: Pycnonotidae) based on mitochondrial and nuclear DNA sequence data. Mol. Phylogenet. Evol. 40(3): 687–695. doi:10.1016/j.ympev.2006.04.015 (HTML abstract)
• Pasquet, Éric; Han, Lian-Xian; Khobkhet, Obhas & Cibois, Alice (2001): Towards a molecular systematics of the genus Criniger, and a preliminary phylogeny of the bulbuls (Aves, Passeriformes, Pycnonotidae). Zoosystema 23(4): 857–863. PDF fulltext

Retrieved from "https://en.wikipedia.org/w/index.php?title=Streak-breasted_bulbul&oldid=1142382402"

El bulbul de Siquijor (Hypsipetes siquijorensis)^[2]​ es una especie de ave paseriforme de la familia Pycnonotidae endémica de Filipinas.

Taxonomía

Fue una de las especies de Ixos que se trasladaron al género Hypsipetes – siempre que se la mantenga separado de Ixos – ya que es pariente cercano del Hypsipetes philippinensis), el cual a su vez esta cercanamente relacionado con la especie tipo de Hypsipetes, el Hypsipetes leucocephalus.^[3]​

Se reconocen tres subespecies:^[4]​

• H. s. cinereiceps - (Bourns y Worcester, 1894): se encuentra en las islas de Tablas y Romblón;
• H. s. monticola - (Bourns y Worcester, 1894): se localiza en la isla de Cebú;
• H. s. siquijorensis - (Steere, 1890): se encuentra en la isla de Siquijor.

Distribución y hábitat

Es endémica de algunas islas del interior del archipiélago filipino. Su hábitat natural son los bosques húmedos bajos subtropicales y las zonas arbustivas húmedas subtropicales. Se encuentra amenazada por pérdida de hábitat.^[5]​

Referencias

Bibliografía

• Gregory, Steven M. (2000): Nomenclature of the Hypsipetes Bulbuls (Pycnonotidae). Forktail 16: 164-166. PDF fulltext
• Moyle, Robert G. & Marks, Ben D. (2006): Phylogenetic relationships of the bulbuls (Aves: Pycnonotidae) based on mitochondrial and nuclear DNA sequence data. Mol. Phylogenet. Evol. 40(3): 687-695. doi 10.1016/j.ympev.2006.04.015 (HTML abstract)
• Pasquet, Éric; Han, Lian-Xian; Khobkhet, Obhas & Cibois, Alice (2001): Towards a molecular systematics of the genus Criniger, and a preliminary phylogeny of the bulbuls (Aves, Passeriformes, Pycnonotidae). Zoosystema 23(4): 857-863. PDF fulltext

Hypsipetes siquijorensis Hypsipetes generoko animalia da. Hegaztien barruko Pycnonotidae familian sailkatua dago.

Erreferentziak

• World Bird Names

Ikus, gainera

• Hypsipetes
• Pycnonotidae

Negrosinbulbuli (Hypsipetes siquijorensis)^[2] on bulbulien heimoon kuuluva varpuslintu.

Levinneisyys

Negrosinbulbulia tavataan neljällä saarella Filippiineillä. Sen kannaksi arvioidaan 3 500–15 000 yksilöä. Se on luokiteltu erittäin uhanalaiseksi, koska sen levinneisyysalue on hyvin pieni ja sirpaloitunut ja kanta pienenemässä.^[1]

Lähteet

Vogels

De leikruinbuulbuul (Hypsipetes siquijorensis ook wel Ixos siquijorensis) is een zeer zeldzame zangvogel uit de familie van de buulbuuls. De soort is endemisch voor de Filipijnen, waar nog slechts enkele duizenden examplaren in het wild voorkomen.

De lokale namen voor de leikruinbuulbuul zijn: tigbaya (Siquijor) of tagmaya (andere delen Visayas)

Kenmerken

De leikruinbuulbuul is een grote buulbuul die zo'n 26,5 cm lang kan worden met een spanwijdte van 13 cm. De verschillende ondersoorten zijn te onderscheiden door middel van de kleur van hun kruin en de strepen op hun borst. De H. s. siquijorensis heeft een donkerbruine kruin en smalle witte strepen op een witbruine hals, terwijl de H. s. cinereiceps een grijze kruin heeft met een bijna helemaal witte hals en brede witte strepen op een olijfbruine borst.

De leikruinbuulbuul is een luidruchtige opvallende vogel.

Ondersoorten

Er zijn drie ondersoorten bekend van deze vogel:

• Hypsipetes siquijorensis cinereiceps (Romblon en Tablas)
• Hypsipetes siquijorensis monticola (Cebu)
• Hypsipetes siquijorensis siqijorensis (Siquijor)

Verspreiding en leefgebied

De leikruinbuulbuul komt voor in de oerwouden en secundaire bossen van de eilanden Cebu, Romblon, Tablas en Siquijor. Een enkele keer kan deze vogel ook op open plekken in de bossen aangetroffen worden. Hierbij dient aangemerkt te worden dat de ondersoort uit Cebu bijna uitgestorven is en de ondersoort uit Siquijor erg zeldzaam is geworden.

Voortplanting

De voortplanting van de leikruinbuulbuul vindt plaats in juni. Over hun nest en eieren is weinig bekend.

Bronnen, noten en/of referenties

• Kennedy, R.S., Gonzales P.C., Dickinson E.C., Miranda, Jr, H.C., Fisher T.H. (2000) A Guide to the Birds of the Philippines, Oxford University Press, Oxford.

Ixos siquijorensis é uma espécie de ave da família Pycnonotidae.

É endémica das Filipinas.

Os seus habitats naturais são: florestas subtropicais ou tropicais húmidas de baixa altitude e matagal húmido tropical ou subtropical.^[1]

Está ameaçada por perda de habitat.^[1]

Referências

Streckbröstad bulbyl^[2] (Hypsipetes siquijorensis) är en fågel i familjen bulbyler inom ordningen tättingar.^[3]

Utbredning och systematik

Streckbröstad bulbyl förekommer i Filippinerna och delas upp i tre distinkta underarter:^[3]

• H. s. cinereiceps – förekommer på Romblon och Tablas
• H. s. monticola – förekommer på Cebu
• H. s. siquijorensis – förekommer på Siquijor

Status

IUCN kategoriserar arten som starkt hotad.^[1]

Noter

1. ^ [a b] Birdlife International 2016 Hypsipetes siquijorensis Från: IUCN 2016. IUCN Red List of Threatened Species. Version 2016.3 www.iucnredlist.org. Läst 2016-02-01.
2. ^ Sveriges ornitologiska förening (2016) Officiella listan över svenska namn på världens fågelarter, läst 2016-11-10
3. ^ [a b] Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood (2016) The eBird/Clements checklist of birds of the world: Version 2016 http://www.birds.cornell.edu/clementschecklist/download, läst 2016-08-11

Externa länkar

• Wikispecies har information om Hypsipetes siquijorensis.
  Artförteckning

Hypsipetes siquijorensis là một loài chim trong họ Pycnonotidae.^[1]

Chú thích

Tham khảo

• Dữ liệu liên quan tới Hypsipetes siquijorensis tại Wikispecies