Two subspecies are recognised within Australia[2][3] and New Guinea.[3]
Pomatostomus temporalis temporalis – This subspecies occurs within Australia in the states of Victoria, eastern Queensland (including Cape York), New South Wales and south-eastern South Australia.[2][3] It is a vagrant or accidental visitor to the Australian Capital Territory.[2] It is also the subspecies believed to occur within New Guinea.[3]
Pomoatostomus temporalis rubeculus – This subspecies occurs in Australia within the states of Western Australia, Northern Territory, western Queensland and a small area of northern South Australia.[2][3]
The breast color is usually used as the distinguishing morphological character between the subspecies, with a creamy white breast grading to mid-grey in P. t. temporalis and a mid to deep rufous brown breast in P. t. rubeculus.[3] Other differences relate to brow coloration, facial bands through the eye, tail length and overall size.[3] A zone of intergradation occurs between the two subspecies in north-central Queensland.[3]
Namingedit
A number of alternate names have been provided for the grey-crowned babbler.
Yahoo – This popular alternate name is based on the distinctive call of the grey-crowned babbler. The source of this name is unclear.[4]
Grey-crowned chatterer – Name given by A. J. North[4]
Happy-jack – Popular name, quoted by A. J. North and others, relating to the species habitat of moving about in 'talkative' family groups.[4] Source of this name is not known.[4]
Dog-bird, barker, barking-bird – Popular names whose sources are not known. Presumably named due to cackling soft tuk note.[4]
Conservation statusedit
Australiaedit
There are numerous lists of threatened fauna from within Australia. The official list of threatened species on the Australian Environment Protection and Biodiversity Conservation Act 1999 does not consider the grey-crowned babbler (either as a species or subspecies) to be threatened.
From other sources, the national status of the grey-crowned babbler varies. The eastern subspecies is increasingly being considered threatened, although not by all:
The Directory of Australian Birds considers both subspecies of the grey-crowned babbler to be secure.[3]
The Action Plan for Australian Birds 2000 considers the eastern subspecies (P. t. temporalis) to be near-threatened.[5] Within this document, this subspecies was considered to be near-threatened using criteria 'a' of Maxwell et al. (1996). That is, this subspecies has disappeared from over 50% of its former area of occupancy and/or extent of occurrence and are at risk of further decline. Although there has been little evident change at the northern edge of its range, the subspecies has been declining noticeably in the southern half of its range[5]
The Action Plan for Australian Birds 2000 considers the north-western subspecies (P. t. rubeculus) to be of least concern.[5]
Grey-crowned babbler at Katherine, Northern Territory
States of Australiaedit
The conservation status of the grey-crowned babbler varies from state to state within Australia. For example:
The grey-crowned babbler is listed as threatened on the Victorian Flora and Fauna Guarantee Act (1988).[6] Under this Act, an Action Statement for the recovery and future management of this species has been prepared.[7] On the 2007 advisory list of threatened vertebrate fauna in Victoria, the grey-crowned babbler is listed as endangered.[8]
The eastern subspecies of the grey-crowned babbler (P. t. temporalis) is listed as vulnerable on the NSW Threatened Species Conservation Act 1995.[9] This is the only subspecies occurring within NSW.
The grey-crowned babbler is not listed as a threatened species on the Western Australian Wildlife Conservation Act 1950.[11]
The grey-crowned babbler is listed as least conservation on the Queensland Nature Conservation Act 1992.[12]
Threatsedit
The key process that has led to the decline of the eastern subspecies of the grey-crowned babbler has been the historic loss and fragmentation of its preferred woodland habitat.[5] Grey-crowned babblers generally have a poor ability to immigrate across unsuitable habitats. As a consequence of fragmentation, breeding success and groups sizes decline. Babbler groups are more susceptible to stochastic events leading to local extinction from a fragment. Once a fragment has lost its population of grey-crowned babblers, natural recolonisation rarely occurs because of the species' poor dispersal ability.[5]
Rush Creek, SE Queensland
Referencesedit
^BirdLife International (2016). "Pomatostomus temporalis". IUCN Red List of Threatened Species. 2016: e.T22704983A93993745. doi:10.2305/IUCN.UK.2016-3.RLTS.T22704983A93993745.en. Retrieved 12 November 2021.
^ abcdClayton, M.; Wombey, J. C.; Mason, I. J.; Chesser, R. T. & Wells, A. (2006). CSIRO List of Australian Vertebrates: A reference with conservation status. 2nd Edition. Collingwood, Victoria: CSIRO Publishing. p. 162. ISBN0-643-09075-4.
^ abcdeMacDonald, J. D. (1987). The Illustrated Dictionary of Australian Birds by Common Name. French's Forest, NSW: Reed Books. p. 207. ISBN0-7301-0184-3.
^ abcdeGarnett, S. T.; Crowley, G. M. (2000). The Action Plan for Australian Birds 2000. Canberra, ACT: Environment Australia. p. 673. ISBN0-642-54683-5.
^List of threatened species on the FFG Act, Department of Sustainability and Environment, Victoria 2005-07-18 at the Wayback Machine
^List of prepared Action Statements, Department of Sustainability and Environment, State of Victoria 2006-09-11 at the Wayback Machine
^Victorian Department of Sustainability and Environment (2007). Advisory List of Threatened Vertebrate Fauna in Victoria – 2007. East Melbourne, Victoria: Department of Sustainability and Environment. p. 15. ISBN978-1-74208-039-0.
^Grey-crowned Babbler Species Profile, Department of Conservation and Environment, State of NSW
^Fauna on Schedule 9 of National Parks and Wildlife Act 1972, State of South Australia
^Listing of threatened species and communities, Department of Environment and Conservation, State of Western Australia
^. Archived from the original on 2007-10-29. Retrieved 2007-10-27.
Maxwell, S., Burbridge, A. A. and Morris, K. (eds). 1996, The 1996 Action Plan for Australian Marsupials and Monotremes. Environment Australia, Canberra.
December 15, 2023
grey, crowned, babbler, grey, crowned, babbler, pomatostomus, temporalis, species, bird, family, pomatostomidae, found, australia, indonesia, papua, guinea, natural, habitats, temperate, forests, subtropical, tropical, moist, lowland, forests, temporalisssp, r. The grey crowned babbler Pomatostomus temporalis is a species of bird in the family Pomatostomidae It is found in Australia Indonesia and Papua New Guinea Its natural habitats are temperate forests and subtropical or tropical moist lowland forests Grey crowned babblerssp temporalisssp rubeculusConservation statusLeast Concern IUCN 3 1 1 Scientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass AvesOrder PasseriformesFamily PomatostomidaeGenus PomatostomusSpecies P temporalisBinomial namePomatostomus temporalis Vigors amp Horsfield 1827 Small flock of grey crowned babblers P t temporalis New South Wales Contents 1 Taxonomy 2 Naming 3 Conservation status 3 1 Australia 3 2 States of Australia 3 3 Threats 4 ReferencesTaxonomy editTwo subspecies are recognised within Australia 2 3 and New Guinea 3 Pomatostomus temporalis temporalis This subspecies occurs within Australia in the states of Victoria eastern Queensland including Cape York New South Wales and south eastern South Australia 2 3 It is a vagrant or accidental visitor to the Australian Capital Territory 2 It is also the subspecies believed to occur within New Guinea 3 Pomoatostomus temporalis rubeculus This subspecies occurs in Australia within the states of Western Australia Northern Territory western Queensland and a small area of northern South Australia 2 3 The breast color is usually used as the distinguishing morphological character between the subspecies with a creamy white breast grading to mid grey in P t temporalis and a mid to deep rufous brown breast in P t rubeculus 3 Other differences relate to brow coloration facial bands through the eye tail length and overall size 3 A zone of intergradation occurs between the two subspecies in north central Queensland 3 Naming editA number of alternate names have been provided for the grey crowned babbler Yahoo This popular alternate name is based on the distinctive call of the grey crowned babbler The source of this name is unclear 4 Grey crowned chatterer Name given by A J North 4 Happy jack Popular name quoted by A J North and others relating to the species habitat of moving about in talkative family groups 4 Source of this name is not known 4 Dog bird barker barking bird Popular names whose sources are not known Presumably named due to cackling soft tuk note 4 Conservation status editAustralia edit There are numerous lists of threatened fauna from within Australia The official list of threatened species on the Australian Environment Protection and Biodiversity Conservation Act 1999 does not consider the grey crowned babbler either as a species or subspecies to be threatened From other sources the national status of the grey crowned babbler varies The eastern subspecies is increasingly being considered threatened although not by all The Directory of Australian Birds considers both subspecies of the grey crowned babbler to be secure 3 The Action Plan for Australian Birds 2000 considers the eastern subspecies P t temporalis to be near threatened 5 Within this document this subspecies was considered to be near threatened using criteria a of Maxwell et al 1996 That is this subspecies has disappeared from over 50 of its former area of occupancy and or extent of occurrence and are at risk of further decline Although there has been little evident change at the northern edge of its range the subspecies has been declining noticeably in the southern half of its range 5 The Action Plan for Australian Birds 2000 considers the north western subspecies P t rubeculus to be of least concern 5 nbsp Grey crowned babbler at Katherine Northern TerritoryStates of Australia edit The conservation status of the grey crowned babbler varies from state to state within Australia For example The grey crowned babbler is listed as threatened on the Victorian Flora and Fauna Guarantee Act 1988 6 Under this Act an Action Statement for the recovery and future management of this species has been prepared 7 On the 2007 advisory list of threatened vertebrate fauna in Victoria the grey crowned babbler is listed as endangered 8 The eastern subspecies of the grey crowned babbler P t temporalis is listed as vulnerable on the NSW Threatened Species Conservation Act 1995 9 This is the only subspecies occurring within NSW The grey crowned babbler is listed on schedule 9 rare species of the South Australian National Parks and Wildlife Act 1972 10 The grey crowned babbler is not listed as a threatened species on the Western Australian Wildlife Conservation Act 1950 11 The grey crowned babbler is listed as least conservation on the Queensland Nature Conservation Act 1992 12 Threats edit The key process that has led to the decline of the eastern subspecies of the grey crowned babbler has been the historic loss and fragmentation of its preferred woodland habitat 5 Grey crowned babblers generally have a poor ability to immigrate across unsuitable habitats As a consequence of fragmentation breeding success and groups sizes decline Babbler groups are more susceptible to stochastic events leading to local extinction from a fragment Once a fragment has lost its population of grey crowned babblers natural recolonisation rarely occurs because of the species poor dispersal ability 5 source source source source Rush Creek SE QueenslandReferences edit BirdLife International 2016 Pomatostomus temporalis IUCN Red List of Threatened Species 2016 e T22704983A93993745 doi 10 2305 IUCN UK 2016 3 RLTS T22704983A93993745 en Retrieved 12 November 2021 a b c d Clayton M Wombey J C Mason I J Chesser R T amp Wells A 2006 CSIRO List of Australian Vertebrates A reference with conservation status 2nd Edition Collingwood Victoria CSIRO Publishing p 162 ISBN 0 643 09075 4 a b c d e f g h i Schodde R amp Mason I J 1999 The Directory of Australian Birds Passerines Collingwood Victoria CSIRO Publishing p 851 ISBN 0 643 06456 7 a b c d e MacDonald J D 1987 The Illustrated Dictionary of Australian Birds by Common Name French s Forest NSW Reed Books p 207 ISBN 0 7301 0184 3 a b c d e Garnett S T Crowley G M 2000 The Action Plan for Australian Birds 2000 Canberra ACT Environment Australia p 673 ISBN 0 642 54683 5 List of threatened species on the FFG Act Department of Sustainability and Environment Victoria Archived 2005 07 18 at the Wayback Machine List of prepared Action Statements Department of Sustainability and Environment State of Victoria Archived 2006 09 11 at the Wayback Machine Victorian Department of Sustainability and Environment 2007 Advisory List of Threatened Vertebrate Fauna in Victoria 2007 East Melbourne Victoria Department of Sustainability and Environment p 15 ISBN 978 1 74208 039 0 Grey crowned Babbler Species Profile Department of Conservation and Environment State of NSW Fauna on Schedule 9 of National Parks and Wildlife Act 1972 State of South Australia Listing of threatened species and communities Department of Environment and Conservation State of Western Australia Threatened plants and Animals Parks and Wildlife Service State of Queensland Archived from the original on 2007 10 29 Retrieved 2007 10 27 Maxwell S Burbridge A A and Morris K eds 1996 The 1996 Action Plan for Australian Marsupials and Monotremes Environment Australia Canberra Retrieved from https en wikipedia org w index php title Grey crowned babbler amp oldid 1181524743, wikipedia, wiki, book, books, library,
