Tematica Mammiferi marini

Tursiops australis Charlton-Robb et al., 2011

Phylum: Chordata Haeckel, 1874

Classe: Mammalia Linnaeus, 1758

Ordine: Cetartiodactyla Montgelard et al., 1997

Famiglia: Delphinidae Gray, 1821

Genere: Tursiops Gervais, 1855

Descrizione

Ritenuta erroneamente parte della popolazione di Tursiops truncatus australiana, questa specie è stata descritta dalla ricercatrice dell'Università di Monash Kate Charlton-Robb, che ha cominciato ad esaminare la popolazione di delfini di Melbourne comparandola fisicamente e geneticamente alle altre popolazioni di tursiopi. Le differenze riscontrate hanno giustificato la scoperta di questa nuova specie, arrivando anche a localizzare l'intera popolazione di Burrunan esistenti. La differenza sta principalmente nella colorazione dei fianchi, che in questa specie sono avorio-ocra chiaro.

Diffusione

Grazie agli studi della ricercatrice si conoscono due popolazioni differenti: circa 100 esemplari abitano Port Phillip (dove sorge Melbourne) mentre 50 sono stati localizzati nella laguna conosciuta come Gippsland Lakes.

Bibliografia

–Charlton-Robb, Kate; Gershwin, Lisa-ann; Thompson, Ross; Austin, Jeremy; Owen, Kylie; McKechnie, Stephen (2011-09-14). "A New Dolphin Species, the Burrunan Dolphin Tursiops australis sp. nov., Endemic to Southern Australian Coastal Waters".
–Jedensjö, M.; Kemper, C.M.; Milella, M.; Willems, E.P.; Krützen, M. (July 2020). "Taxonomy and distribution of bottlenose dolphins (genus Tursiops ) in Australian waters: an osteological clarification". Canadian Journal of Zoology. 98 (7): 461-479.
–Oremus, Marc; Garrigue, Claire; Tezanos-Pinto, Gabriela; Scott Baker, C. (2015-04-02). "Phylogenetic identification and population differentiation of bottlenose dolphins (Tursiopsspp.) in Melanesia, as revealed by mitochondrial DNA". Marine Mammal Science. 31 (3): 1035-1056.
–Gray, H.W.I.; Nishida, S.; Welch, A.J.; Moura, A.E.; Tanabe, S.; Kiani, M.S.; Culloch, R.; Möller, L.; Natoli, A.; Ponnampalam, L.S.; Minton, G. (May 2018). "Cryptic lineage differentiation among Indo-Pacific bottlenose dolphins (Tursiops aduncus) in the northwest Indian Ocean". Molecular Phylogenetics and Evolution. 122: 1-14.
–Ben Chehida, Yacine; Thumloup, Julie; Schumacher, Cassie; Harkins, Timothy; Aguilar, Alex; Borrell, Asunción; Ferreira, Marisa; Rojas-Bracho, Lorenzo; Robertson, Kelly M.; Taylor, Barbara L.; Víkingsson, Gísli A. (December 2020). "Mitochondrial genomics reveals the evolutionary history of the porpoises (Phocoenidae) across the speciation continuum". Scientific Reports. 10 (1): 15190.
–Horreo, Jose L. (May 2019). "New insights into the phylogenetic relationships among the oceanic dolphins (Cetacea: Delphinidae)". Journal of Zoological Systematics and Evolutionary Research. 57 (2): 476-480.
–Moura, Andre E.; Nielsen, Sandra C. A.; Vilstrup, Julia T.; Moreno-Mayar, J. Victor; Gilbert, M. Thomas P.; Gray, Howard W. I.; Natoli, Ada; Möller, Luciana; Hoelzel, A. Rus (2013-11-01). "Recent Diversification of a Marine Genus (Tursiops spp.) Tracks Habitat Preference and Environmental Change". Systematic Biology. 62 (6): 865-877.
–Lee, Kyunglee; Lee, JunMo; Cho, Yuna; Kim, Hyun Woo; Park, Kyum Joon; Sohn, Hawsun; Choi, Young-Min; Kim, Hye Kwon; Jeong, Dae Gwin; Kim, Ji Hyung (2018-01-09). "First report of the complete mitochondrial genome and phylogenetic analysis of Fraser's dolphin Lagenodelphis hosei (Cetacea: Delphinidae)". Conservation Genetics Resources. 11 (1): 47-50.
–Zurano, Juan P.; Magalhães, Felipe M.; Asato, Ana E.; Silva, Gabriel; Bidau, Claudio J.; Mesquita, Daniel O.; Costa, Gabriel C. (April 2019). "Cetartiodactyla: Updating a time-calibrated molecular phylogeny". Molecular Phylogenetics and Evolution. 133: 256-262.
–Charlton-Robb, K.; Taylor, A. C.; McKechnie, S. W. (2015-02-01). "Population genetic structure of the Burrunan dolphin (Tursiops australis) in coastal waters of south-eastern Australia: conservation implications". Conservation Genetics. 16 (1): 195-207.
–Charlton-Robb, K.; Gershwin, L.; Thompson, R.; Austin, J.; Owen, K.; McKechnie, Stephen (2011). Fleischer, Robert C. (ed.). "A New Dolphin Species, the Burrunan Dolphin Tursiops australis sp. nov., Endemic to Southern Australian Coastal Waters". PLoS ONE. 6 (9): e24047.
–"Researcher discovers new dolphin species in Victoria". Monash University. 15 September 2011.
–"New species of dolphin discovered". BBC News. 15 September 2011.
–Ritchie, Kerrie (15 September 2011). "New dolphin species discovered in Victoria". ABC News. Retrieved 16 September 2011.
–Jedensjö, M. (26 March 2020). "Taxonomy and distribution of bottlenose dolphins (genus Tursiops) in Australian waters: an osteological clarification". Canadian Journal of Zoology. Retrieved 6 July 2020.
–Department of Sustainability and Environment. Advisory List of Threatened Vertebrate Fauna in Victoria. In: Department of Sustainability and Environment, editor. Melbourne East, Australia: State Government of Victoria; 2013.
–Menkhorst, P.W.; Knight, F. (2011). A field guide to the mammals of Australia (3rd ed.). Melbourne: Oxford University Press. p. 236.
–Filby, Nicole E.; Stockin, Karen A.; Scarpaci, Carol (2014-12-01). "Long-term responses of Burrunan dolphins (Tursiops australis) to swim-with dolphin tourism in Port Phillip Bay, Victoria, Australia: A population at risk". Global Ecology and Conservation. 2: 62-71.
vMonk, Alissa; Charlton-Robb, Kate; Buddhadasa, Saman; Thompson, Ross M. (2014-08-19). "Comparison of Mercury Contamination in Live and Dead Dolphins from a Newly Described Species, Tursiops australis". PLOS ONE. 9 (8): e104887.
–Puszka, Helena; Shimeta, Jeff; Robb, Kate (2021-01-19). "Assessment on the effectiveness of vessel-approach regulations to protect cetaceans in Australia: A review on behavioral impacts with case study on the threatened Burrunan dolphin (Tursiops australis)".

	Data: 28/08/2018 Emissione: I Delfini Stato: Arctic Territories Nota: Emesso in un foglietto di 4 v. diversi