Rinjani scops owl

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Rinjani scops owl
Rinjani Scops Owl Otus jolandae, Lombok - journal.pone.0053712.g001-right.png
Two Rinjani scops owls perched on a branch
CITES Appendix II (CITES) [2]
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Strigiformes
Family: Strigidae
Genus: Otus
Species:
O. jolandae
Binomial name
Otus jolandae
Sangster et al., 2013

The Rinjani scops owl (Otus jolandae) is a species of scops owl found only on Lombok in the Lesser Sunda Islands of Indonesia and its neighbouring Gili Islands. The only bird species endemic to the island, it was first recognized as a separate species in September 2003 [3] [4] and was formally described in 2013. [5]

Contents

Etymology

The specific epithet jolandae honours Dr Jolanda Luksenburg, a biologist who codiscovered the species in 2003. Both the English common name and proposed Indonesian name Celepuk Rinjani refer to Mount Rinjani, the 3700 m active volcano that dominates Lombok. The owls are also known locally as burung pok, referring onomatopoeically to the call. [5]

Description and identification

As with most other Otus owls, the Rinjani scops owl is mainly brown in colour, barred and spotted in various shades with white. It is largely similar in appearance to the Moluccan scops owl, O. magicus, but has a different call, a clean whistling hoot rather than the raspy croak of O. magicus. [5]

History

Seven specimens of the owl were obtained from May to July in 1896 by British naturalist Alfred Everett, who also used paid local collectors. However, at that time, the bird was not recognised as being specifically distinct from the Moluccan scops owl, which occurs on other islands in the Lesser Sundas. The Everett specimens are held in the British Natural History Museum (including the holotype) and the American Museum of Natural History. [5]

In September 2003 George Sangster and Jolanda Luksenburg saw, and recorded vocalisations of, scops owls on Lombok. In the same month Ben King did so as well. Both parties independently concluded that the calls differed substantially from those of O. magicus and other Asian scops owls. In 2008 photographs and more sound recordings were obtained by Bram Demeulemeester and Philippe Verbelen. Another sound recording was obtained in August 2011 by Jan van der Laan. [5]

Detailed comparison of the Everett specimens and the later sound recordings with those of other scops owls found in Wallacea and the Indo-Malayan region indicated that the Lombok owls constituted a previously undescribed species and provided the basis for the 2013 description. [5]

Distribution and habitat

The Rinjani scops owl is restricted to the island of Lombok where it is the only resident scops owl species. It is locally common within remaining forest habitat on the island, much of which lies within the Gunung Rinjani National Park, at elevations of 25–1350 m. [5]

Threats

Prior to 2018, the Rinjani scops owl was not included on Indonesia's protected species list; however, given that there was no harvest quota in place for the species, it could not be commercially traded. In 2018, the Government of Indonesia revised its list of protected species, which now does include the Rinjani scops owl as a protected species. However, open illegal trade in this species in the bird markets of Lombok has been recorded, [6] [7] and as such, illegal trade should be considered a potential threat to the conservation of this species.

See also

Related Research Articles

<span class="mw-page-title-main">Lombok</span> Island in West Nusa Tenggara, Indonesia

Lombok is an island in West Nusa Tenggara province, Indonesia. It forms part of the chain of the Lesser Sunda Islands, with the Lombok Strait separating it from Bali to the west and the Alas Strait between it and Sumbawa to the east. It is roughly circular, with a "tail" to the southwest, about 70 kilometres across and a total area of about 4,738.65 square kilometres including smaller offshore islands. The provincial capital and largest city on the island is Mataram.

<span class="mw-page-title-main">Scops owl</span> Genus of birds

Scops owls are typical owls in family Strigidae belonging to the genus Otus and are restricted to the Old World. Otus is the largest genus of owls with 59 species. Scops owls are colored in various brownish hues, sometimes with a lighter underside and/or face, which helps to camouflage them against the bark of trees. Some are polymorphic, occurring in a greyish- and a reddish-brown morph. They are small and agile, with both sexes being compact in size and shape. Female scops owls are usually larger than males.

<span class="mw-page-title-main">Mount Rinjani</span> Volcano in Lombok, Indonesia

Mount Rinjani is an active volcano in Indonesia on the island of Lombok. Administratively the mountain is in the Regency of North Lombok, West Nusa Tenggara. It rises to 3,726 metres (12,224 ft), making it the second highest volcano in Indonesia. It is also the highest point in the Indonesian province of West Nusa Tenggara.

<span class="mw-page-title-main">Mauritius scops owl</span> Extinct species of owl

The extinct Mauritius scops owl, also known as Mauritius owl, Mauritius lizard owl, Commerson's owl, Sauzier's owl, or Newton's owl, was endemic to the Mascarene island of Mauritius. It is known from a collection of subfossil bones from the Mare aux Songes swamp, a detailed sketch made by de Jossigny in 1770, a no less detailed description by Desjardins of a bird shot in 1836, and a number of brief reports about owls, the first being those of Van Westzanen in 1602 and Matelief in 1606.

<span class="mw-page-title-main">Siau scops owl</span> Species of owl

The Siau scops owl is a critically endangered owl species. They live on Siau Island, north of Sulawesi, Indonesia and are (were) forest dwellers. The species is only known from a single holotype from 1866 although there have been more recent potential sightings, including one in 2017. Even so, their habitat is being lost to excessive logging of the forest on the island and there would be very few if any individuals left. The taxonomic arrangement for this owl has not been fully worked out. While recognized as a distinct species by the IOC, others consider it as a subspecies of either the Sulawesi scops owl or Moluccan scops owl.

<span class="mw-page-title-main">Flores hawk-eagle</span> Species of bird

The Flores hawk-eagle is a large raptor in the family Accipitridae. It is an endemic species to the Lesser Sunda Islands in Indonesia. A member of the genus Nisaetus, it was considered as a subspecies of and conspecific with the changeable hawk-eagle but genetic studies have evidenced it as a legitimate species. A forest dwelling predator, this species is classified as Critically Endangered due to habitat loss and persecution.

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The Flores scops owl is an owl endemic to the island of Flores, Indonesia. It is threatened by habitat loss. This owl is around 19–21 cm from head to tail. They are a forest dwelling owl that is smallish in size. Some 250–2,499 individuals are estimated to be extant in the wild, dwindling due to habitat loss.

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<span class="mw-page-title-main">Sunda scops owl</span> Species of owl

The Sunda scops owl is a small brown owl native to the Sunda Islands.

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Wallace's scops owl is endemic to the Sumbawa and Flores islands, in the Lesser Sundas chain of Indonesia. It is not rare in most of its habitat and has no subspecies except for the nominate. It is also known as the Lesser Sunda scops owl. It is named after Alfred Russel Wallace, a British naturalist, explorer, geographer, and biologist.

<span class="mw-page-title-main">Moluccan scops owl</span> Species of owl

The Moluccan scops owl is an owl found in the Maluku and Lesser Sunda Islands of Indonesia. It closely resembles the Rinjani scops owl.

The Sula scops owl, is a small owl in the scops-owl genus Otus found on the Sula Islands of Indonesia. Taxonomically, some groups consider it to be a distinct species, others a subspecies of the Sulawesi scops owl, and yet others a subspecies of the Moluccan scops owl.

The Sangihe scops owl is an owl species endemic to the Sangihe Island of Indonesia.

<span class="mw-page-title-main">Simeulue scops owl</span> Species of owl

The Simeulue scops owl is an owl species endemic to the island of Simeulue, Indonesia.

<span class="mw-page-title-main">Lesser Sundas deciduous forests</span> Ecoregion in Lesser Sundas, Indonesia

The Lesser Sundas deciduous forests is a tropical dry forest ecoregion in Indonesia. The ecoregion includes the islands of Lombok, Sumbawa, Komodo, Flores, and Alor, along with the many adjacent smaller islands.

The year 2013 in birding and ornithology.

The Wetar scops owl is an owl endemic to Wetar of the Maluku Islands of Indonesia. It was previously considered a subspecies of the Moluccan scops owl, but was split as a distinct species by the IUCN Red List and BirdLife International in 2014, and the International Ornithological Congress followed suit in 2022.

<span class="mw-page-title-main">Principe scops owl</span> Species of owl

The Principe scops owl is a species of scops owl found only on Príncipe Island of São Tomé and Príncipe, an island country in the Gulf of Guinea off the coast of Africa. First noticed by its distinctive nighttime call, it was formally described in 2022. The first records of suspicions of its existence are from 1928. Given its low population numbers and tiny range, researchers have asked the IUCN to declare it Critically Endangered. Its distribution is limited to native forests where human activity is low—in fact, its range is entirely within a protected area, the Príncipe Obô Natural Park—and it seems to prefer larger trees. It feeds on insects. Its predators include the Mona monkey and the black rat.

References

  1. BirdLife International (2017). "Otus jolandae". IUCN Red List of Threatened Species . 2017: e.T61786867A117002556. doi: 10.2305/IUCN.UK.2017-3.RLTS.T61786867A117002556.en . Retrieved 11 November 2021.
  2. "Appendices | CITES". cites.org. Retrieved 2022-01-14.
  3. "Unique Calls Reveal New Owl Species". Live Science. 13 February 2013. Retrieved 2013-02-14.
  4. "A new owl species from Indonesia is formally described". BBC News. Retrieved 2013-02-14.
  5. 1 2 3 4 5 6 7 Sangster, G.; King, B. F.; Verbelen, P.; Trainor, C. R. (2013). "A new owl species of the genus Otus (Aves: Strigidae) from Lombok, Indonesia". PLOS ONE. 8 (2): e53712. Bibcode:2013PLoSO...853712S. doi: 10.1371/journal.pone.0053712 . PMC   3572129 . PMID   23418422.
  6. Shepherd et al. (2020)
  7. Leupen, Boyd T. C.; Shepherd, Loretta; Shepherd, Chris R; Damianou, Evros; Nijman, Vincent (2022-04-30). "Market surveys in Mataram, Lombok, illustrate the expanse of legal and illegal Indonesian bird trade networks". Indonesian Journal of Applied Environmental Studies. 3 (1): 42–52. doi: 10.33751/injast.v3i1.5127 . ISSN   2722-0141. S2CID   248481041.