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Koungoulos LG, Hulme-Beaman A, Fillios M. Phenotypic diversity in early Australian dingoes revealed by traditional and 3D geometric morphometric analysis. Sci Rep 2024; 14:21228. [PMID: 39294146 PMCID: PMC11411105 DOI: 10.1038/s41598-024-65729-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 06/24/2024] [Indexed: 09/20/2024] Open
Abstract
The dingo is a wild dog endemic to Australia with enigmatic origins. Dingoes are one of two remaining unadmixed populations of an early East Asian dog lineage, the other being wild dogs from the New Guinea highlands, but morphological connections between these canid groups have long proved elusive. Here, we investigate this issue through a morphometric study of ancient dingo remains found at Lake Mungo and Lake Milkengay, in western New South Wales. Direct accelerated mass spectrometry (AMS) radiocarbon dates from an ancient Lake Mungo dingo demonstrate that dingoes with a considerably smaller build than the predominant modern morphotype were present in semi-arid southeastern Australia c.3000-3300 calBP. 3D geometric morphometric analysis of a near-complete Mungo cranium finds closest links to East Asian and New Guinean dogs, providing the first morphological evidence of links between early dingoes and their northern relatives. This ancient type is no longer extant within the range of modern dingo variability, but populations from nearby southeastern Australia show a closer resemblance than those to the north and west. Our results reaffirm prior characterisations of regional variability in dingo phenotype as not exclusively derived from recent domestic dog hybridisation but as having an earlier precedent, and suggest further that the dingo's phenotype has changed over time.
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Affiliation(s)
- Loukas G Koungoulos
- Department of Archaeology, School of Humanities, The University of Sydney, Sydney, Australia.
- Archaeology and Natural History, College of Asia and the Pacific, School of Culture, History and Language, The Australian National University, Canberra, Australia.
- Australian Museum Research Institute, Australian Museum, Sydney, Australia.
| | - Ardern Hulme-Beaman
- Department of Veterinary Anatomy, Physiology and Pathology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK
- Department of Archaeology, Classics and Egyptology, School of Histories, Languages and Cultures, University of Liverpool, Liverpool, UK
| | - Melanie Fillios
- Department of Archaeology, School of Humanities, Arts and Social Sciences, The University of New England, Armidale, Australia
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Newsome T, Cairncross R, Cunningham CX, Spencer EE, Barton PS, Ripple WJ, Wirsing AJ. Scavenging with invasive species. Biol Rev Camb Philos Soc 2024; 99:562-581. [PMID: 38148253 DOI: 10.1111/brv.13035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 11/19/2023] [Accepted: 11/22/2023] [Indexed: 12/28/2023]
Abstract
Carrion acts as a hotspot of animal activity within many ecosystems globally, attracting scavengers that rely on this food source. However, many scavengers are invasive species whose impacts on scavenging food webs and ecosystem processes linked to decomposition are poorly understood. Here, we use Australia as a case study to review the extent of scavenging by invasive species that have colonised the continent since European settlement, identify the factors that influence their use of carcasses, and highlight the lesser-known ecological effects of invasive scavengers. From 44 published studies we identified six invasive species from 48 vertebrates and four main groups of arthropods (beetles, flies, ants and wasps) that scavenge. Invasive red foxes (Vulpes vulpes), domestic dogs (Canis familiaris), feral pigs (Sus scrofa), black rats (Rattus rattus) and feral cats (Felis catus) were ranked as highly common vertebrate scavengers. Invasive European wasps (Vespula germanica) are also common scavengers where they occur. We found that the diversity of native vertebrate scavengers is lower when the proportion of invasive scavengers is higher. We highlight that the presence of large (apex) native vertebrate scavengers can decrease rates of scavenging by invasive species, but that invasive scavengers can monopolise carcass resources, outcompete native scavengers, predate other species around carcass resources and even facilitate invasion meltdowns that affect other species and ecological processes including altered decomposition rates and nutrient cycling. Such effects are likely to be widespread where invasive scavengers occur and suggest a need to determine whether excessive or readily available carcass loads are facilitating or exacerbating the impacts of invasive species on ecosystems globally.
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Affiliation(s)
- Thomas Newsome
- School of Life and Environmental Science, University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Rhys Cairncross
- School of Life and Environmental Science, University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Calum X Cunningham
- School of Environmental and Forest Sciences, University of Washington, College of the Environment, Box 352100, Seattle, WA, 98195-2100, USA
| | - Emma E Spencer
- School of Life and Environmental Science, University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Philip S Barton
- School of Life and Environmental Science, Deakin University, Geelong, Victoria, 3216, Australia
| | - William J Ripple
- Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR, 97331, USA
| | - Aaron J Wirsing
- School of Environmental and Forest Sciences, University of Washington, College of the Environment, Box 352100, Seattle, WA, 98195-2100, USA
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3
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Gojobori J, Arakawa N, Xiaokaiti X, Matsumoto Y, Matsumura S, Hongo H, Ishiguro N, Terai Y. Japanese wolves are most closely related to dogs and share DNA with East Eurasian dogs. Nat Commun 2024; 15:1680. [PMID: 38396028 PMCID: PMC10891106 DOI: 10.1038/s41467-024-46124-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 02/14/2024] [Indexed: 02/25/2024] Open
Abstract
Although the domestic dog's origin is still unclear, this lineage is believed to have been domesticated from an extinct population of gray wolves, which is expected to be more closely related to dogs than to other populations of gray wolves. Here, we sequence the whole genomes of nine Japanese wolves (7.5-100x: Edo to Meiji periods) and 11 modern Japanese dogs and analyze them together with those from other populations of dogs and wolves. A phylogenomic tree shows that, among the gray wolves, Japanese wolves are closest to the dog, suggesting that the ancestor of dogs is closely related to the ancestor of the Japanese wolf. Based on phylogenetic and geographic relationships, the dog lineage has most likely originated in East Asia, where it diverged from a common ancestor with the Japanese wolf. Since East Eurasian dogs possess Japanese wolf ancestry, we estimate an introgression event from the ancestor of the Japanese wolf to the ancestor of the East Eurasian dog that occurred before the dog's arrival in the Japanese archipelago.
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Affiliation(s)
- Jun Gojobori
- SOKENDAI (The Graduate University for Advanced Studies), Research Center for Integrative Evolutionary Science, Shonan Village, Hayama, Kanagawa, 240-0193, Japan
| | - Nami Arakawa
- SOKENDAI (The Graduate University for Advanced Studies), Research Center for Integrative Evolutionary Science, Shonan Village, Hayama, Kanagawa, 240-0193, Japan
| | - Xiayire Xiaokaiti
- SOKENDAI (The Graduate University for Advanced Studies), Research Center for Integrative Evolutionary Science, Shonan Village, Hayama, Kanagawa, 240-0193, Japan
| | - Yuki Matsumoto
- Research and Development Section, Anicom Specialty Medical Institute, Naka-ku, Chojamachi, Yokohama, 231-0033, Japan
| | - Shuichi Matsumura
- Faculty of Applied Biological Sciences, Gifu University, Yanagido 1-1, Gifu, 501-1193, Japan
| | - Hitomi Hongo
- SOKENDAI (The Graduate University for Advanced Studies), Research Center for Integrative Evolutionary Science, Shonan Village, Hayama, Kanagawa, 240-0193, Japan
| | - Naotaka Ishiguro
- SOKENDAI (The Graduate University for Advanced Studies), Research Center for Integrative Evolutionary Science, Shonan Village, Hayama, Kanagawa, 240-0193, Japan.
- Faculty of Applied Biological Sciences, Gifu University, Yanagido 1-1, Gifu, 501-1193, Japan.
| | - Yohey Terai
- SOKENDAI (The Graduate University for Advanced Studies), Research Center for Integrative Evolutionary Science, Shonan Village, Hayama, Kanagawa, 240-0193, Japan.
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Koungoulos LG, Balme J, O’Connor S. Dingoes, companions in life and death: The significance of archaeological canid burial practices in Australia. PLoS One 2023; 18:e0286576. [PMID: 37862353 PMCID: PMC10588905 DOI: 10.1371/journal.pone.0286576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 05/18/2023] [Indexed: 10/22/2023] Open
Abstract
The dingo, also known as the Australian native dog, was introduced in the late Holocene. Dingoes were primarily wild animals but a number resided in Aboriginal people's camps. Traditionally, these individuals were taken from wild litters before weaning and raised by Aboriginal people. It is generally believed that these dingoes were not directly provided for, and upon sexual maturity, returned to reproduce in the wild. However, some died while in the company of people and, were buried in occupation sites. This Australian practice parallels the burial of domestic dogs in many regions of the Asia-Pacific and beyond but has attracted very little research. We explore the historical and archaeological evidence for dingo burial, examining its different forms, chronological and geographic distribution, and cultural significance. Dingoes were usually buried in the same manner as Aboriginal community members and often in areas used for human burial, sometimes alongside people. This practice probably occurred from the time of their introduction until soon after European colonisation. We present a case study of dingo burials from Curracurrang Rockshelter (NSW) which provides insights into the lives of ancient tame dingoes, and suggests that domestication and genetic continuity between successive camp-dwelling generations may have occurred prior to European contact.
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Affiliation(s)
- Loukas George Koungoulos
- School of Culture, History and Language, College of Asia and the Pacific, The Australian National University, Canberra, Australia
| | - Jane Balme
- School of Social Sciences, University of Western Australia, Crawley, Australia
| | - Sue O’Connor
- School of Culture, History and Language, College of Asia and the Pacific, The Australian National University, Canberra, Australia
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Wang T, Zhu L, Zhu W, Kanda H. Direct synthesis of hydrogen fluoride-free multilayered Ti 3C 2/TiO 2 composite and its applications in photocatalysis. Heliyon 2023; 9:e18718. [PMID: 37554843 PMCID: PMC10405010 DOI: 10.1016/j.heliyon.2023.e18718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 07/17/2023] [Accepted: 07/25/2023] [Indexed: 08/10/2023] Open
Abstract
Ti3C2/TiO2 hybrids are environment-friendly and exhibit excellent photocatalytic and hydrogen-generating power characteristics. Herein, a novel single-step method is proposed for fabricating multilayer structures in which TiO2, generated from (NH4)2TiF6, wraps the Ti3C2 MXene by etching Ti3AlC2 with (NH4)2TiF6. The optimal reaction conditions for the etching of Ti3AlC2 with (NH4)2TiF6 were systematically studied. The phase composition, morphology, and photophysical properties of the Ti3C2/TiO2 hybrids were investigated using X-ray diffraction, field-emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, Raman spectroscopy, and UV-vis spectrophotometry. The thermal stability of the hybrids was investigated using thermogravimetric and differential thermal analyses. Along with the formation of Ti3C2 MXene, Ti3AlC2 reacted with (NH4)2TiF6 at 60 °C for 24 h to form hybrids surrounded by NH4TiOF3 crystals. Subsequent reactions of these hybrids with H3BO3 resulted in the conversion of NH4TiOF3 crystals into TiO2 and eventually into Ti3C2/TiO2 hybrids. Furthermore, the photocatalytic activity of the Ti3C2/TiO2 hybrids was measured by monitoring the photodegradation of methylene blue under ultraviolet light, which showed that the photocatalytic activity of the Ti3C2/TiO2 hybrids was higher than that of the commercial anatase TiO2 nanoparticles.
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Affiliation(s)
- Tao Wang
- Department of Materials Process Engineering, Nagoya University, Nagoya, 464-8603, Japan
| | - Li Zhu
- Department of Materials Process Engineering, Nagoya University, Nagoya, 464-8603, Japan
| | - Wanying Zhu
- Department of Materials Process Engineering, Nagoya University, Nagoya, 464-8603, Japan
| | - Hideki Kanda
- Department of Materials Process Engineering, Nagoya University, Nagoya, 464-8603, Japan
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Hecht EE, Barton SA, Rogers Flattery CN, Meza Meza A. The evolutionary neuroscience of domestication. Trends Cogn Sci 2023; 27:553-567. [PMID: 37087363 DOI: 10.1016/j.tics.2023.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/17/2023] [Accepted: 03/22/2023] [Indexed: 04/24/2023]
Abstract
How does domestication affect the brain? This question has broad relevance. Domesticated animals play important roles in human society, and substantial recent work has addressed the hypotheses that a domestication syndrome links phenotypes across species, including Homo sapiens. Surprisingly, however, neuroscience research on domestication remains largely disconnected from current knowledge about how and why brains change in evolution. This article aims to bridge that gap. Examination of recent research reveals some commonalities across species, but ultimately suggests that brain changes associated with domestication are complex and variable. We conclude that interactions between behavioral, metabolic, and life-history selection pressures, as well as the role the role of experience and environment, are currently largely overlooked and represent important directions for future research.
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Affiliation(s)
- Erin E Hecht
- Department of Human Evolutionary Biology, Harvard University, 11 Divinity Avenue, Cambridge, MA 02171, USA.
| | - Sophie A Barton
- Department of Human Evolutionary Biology, Harvard University, 11 Divinity Avenue, Cambridge, MA 02171, USA
| | | | - Araceli Meza Meza
- Department of Human Evolutionary Biology, Harvard University, 11 Divinity Avenue, Cambridge, MA 02171, USA
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Boronyak L, Jacobs B. Pathways to coexistence with dingoes across Australian farming landscapes. FRONTIERS IN CONSERVATION SCIENCE 2023. [DOI: 10.3389/fcosc.2023.1126140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023] Open
Abstract
IntroductionAgriculture and biodiversity conservation are both vitally important human activities that overlap geographically and are often in conflict. Animal agriculture has been implicated in species loss and the degradation of ecosystems due to land clearing, overgrazing, and conflicts with large carnivores such as dingoes (Canis dingo). This paper explores the potential for transformation in Australian commercial livestock production from human-dingo conflict towards social-ecological coexistence.MethodA qualitative model that depicts transformative change was developed from field observations and twenty-one in-depth interviews with livestock producers, conservation researchers, grazing industry representatives and policy makers across Australia. The model articulates the current state of dingo management and the drivers of system change.ResultsSeven pathways are described to catalyse transformation from routine lethal management of dingoes towards a future vision that embeds mutually beneficial coexistence. Central to transformation is the adoption by livestock producers of preventive non-lethal innovations supported by a new farming movement, Predator Smart Farming, that balances livestock grazing and wildlife conservation values to unlock the resilience of landscapes, animals (domesticated and wild) and livelihoods. Other key pathways include targeted research, capacity building, outreach and knowledge sharing networks; institutional (policy, legislation, and economic incentives) and cultural change; public awareness raising and advocacy to reduce lethal control; and greater involvement of Indigenous Australians in decisions relating to wildlife management.DiscussionThe seven transition pathways are discussed in relation to how they can collectively foster coexistence with dingoes in extensive rangelands grazing systems. International examples of interventions are used to illustrate the types of successful actions associated with each pathway that could inform action in Australia. The findings have implications for coexistence with large carnivores in rangeland ecosystems globally.
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Donfrancesco V, Allen BL, Appleby R, Behrendorff L, Conroy G, Crowther MS, Dickman CR, Doherty T, Fancourt BA, Gordon CE, Jackson SM, Johnson CN, Kennedy MS, Koungoulos L, Letnic M, Leung LK, Mitchell KJ, Nesbitt B, Newsome T, Pacioni C, Phillip J, Purcell BV, Ritchie EG, Smith BP, Stephens D, Tatler J, van Eeden LM, Cairns KM. Understanding conflict among experts working on controversial species: A case study on the Australian dingo. CONSERVATION SCIENCE AND PRACTICE 2023. [DOI: 10.1111/csp2.12900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
Affiliation(s)
| | - Benjamin L. Allen
- University of Southern Queensland Institute for Life Sciences and the Environment Toowoomba Queensland Australia
- Centre for African Conservation Ecology Nelson Mandela University Port Elizabeth South Africa
| | - Rob Appleby
- Centre for Planetary Health and Food Security Griffith University Nathan Queensland Australia
| | - Linda Behrendorff
- School of Agriculture and Food Sciences University of Queensland Gatton Queensland Australia
| | - Gabriel Conroy
- Genecology Research Centre, School of Science, Technology and Engineering University of the Sunshine Coast Maroochydore DC Queensland Australia
| | - Mathew S. Crowther
- School of Life and Environmental Sciences University of Sydney New South Wales Australia
| | - Christopher R. Dickman
- Desert Ecology Research Group, School of Life and Environmental Sciences University of Sydney Sydney New South Wales Australia
| | - Tim Doherty
- Desert Ecology Research Group, School of Life and Environmental Sciences University of Sydney Sydney New South Wales Australia
| | - Bronwyn A. Fancourt
- Ecosystem Management, School of Environmental and Rural Science University of New England Armidale New South Wales Australia
| | - Christopher E. Gordon
- Center for Biodiversity Dynamics in a Changing World Aarhus University Aarhus C Denmark
| | - Stephen M. Jackson
- Collection Care and Conservation Australian Museum Research Institute Sydney New South Wales Australia
| | - Chris N. Johnson
- School of Natural Sciences and Australian Research Council Centre of Excellence for Australian Biodiversity and Heritage University of Tasmania Hobart Tasmania Australia
| | - Malcolm S. Kennedy
- Threatened Species Operations Department of Environment and Science Brisbane Queensland Australia
| | - Loukas Koungoulos
- Department of Archaeology, School of Philosophical and Historical Inquiry The University of Sydney Sydney New South Wales Australia
| | - Mike Letnic
- Centre for Ecosystem Science, School of Biological, Earth and Environmental Sciences University of New South Wales Sydney New South Wales Australia
- Evolution and Ecology Research Centre, School of Biological, Earth and Environmental Sciences University of New South Wales Sydney New South Wales Australia
| | - Luke K.‐P. Leung
- School of Agriculture and Food Sciences University of Queensland Gatton Queensland Australia
| | - Kieren J. Mitchell
- Australian Research Council Centre of Excellence for Australian Biodiversity and Heritage, School of Biological Sciences University of Adelaide Adelaide South Australia Australia
| | - Bradley Nesbitt
- School of Environmental and Rural Science University of New England Armidale New South Wales Australia
| | - Thomas Newsome
- Global Ecology Lab, School of Life and Environmental Sciences University of Sydney Sydney New South Wales Australia
| | - Carlo Pacioni
- Department of Environment, Land, Water and Planning Arthur Rylah Institute Heidelberg Victoria Australia
- Environmental and Conservation Sciences Murdoch University Murdoch Western Australia Australia
| | | | - Brad V. Purcell
- Kangaroo Management Program Office of Environment and Heritage Dubbo New South Wales Australia
| | - Euan G. Ritchie
- School of Life and Environmental Sciences and Centre for Integrative Ecology Deakin University Burwood Victoria Australia
| | - Bradley P. Smith
- College of Psychology, School of Health, Medical and Applied Sciences CQUniversity Australia Wayville South Australia Australia
| | | | - Jack Tatler
- Narla Environmental Pty Ltd Warriewood New South Wales Australia
| | - Lily M. van Eeden
- Department of Environment, Land, Water and Planning Arthur Rylah Institute Heidelberg Victoria Australia
| | - Kylie M. Cairns
- Centre for Ecosystem Science, School of Biological, Earth and Environmental Sciences University of New South Wales Sydney New South Wales Australia
- Evolution and Ecology Research Centre, School of Biological, Earth and Environmental Sciences University of New South Wales Sydney New South Wales Australia
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Brumm A, Germonpré M, Koungoulos L. The human-initiated model of wolf domestication - An expansion based on human-dingo relations in Aboriginal Australia. Front Psychol 2023; 14:1082338. [PMID: 37205085 PMCID: PMC10187142 DOI: 10.3389/fpsyg.2023.1082338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 02/15/2023] [Indexed: 05/21/2023] Open
Abstract
The historically known relationship of interspecies companionship between Aboriginal foraging communities in Australia and free-ranging dingoes provides a model for understanding the human-canid relations that gave rise to the first domesticated dogs. Here, we propose that a broadly similar relationship might have developed early in time between wild-living wolves and mobile groups of foragers in Late Pleistocene Eurasia, with hunter-gatherers routinely raiding wild wolf dens for pre-weaned pups, which were socialized to humans and kept in camp as tamed companions ("pets"). We outline a model in which captive wolf pups that reverted to the wild to breed when they were sexually mature established their territories in the vicinity of foraging communities - in a "liminal" ecological zone between humans and truly wild-living wolves. Many (or most) of the wolf pups humans took from the wilderness to rear in camp may have derived from these liminal dens where the breeding pairs had been under indirect human selection for tameness over many generations. This highlights the importance of the large seasonal hunting/aggregation camps associated with mammoth kill-sites in Gravettian/Epigravettian central Europe. Large numbers of foragers gathered regularly at these locations during the wild wolf birthing season. We infer that if a pattern of this kind occurred over long periods of time then there might have been a pronounced effect on genetic variation in free-ranging wolves that denned and whelped in the liminal zones in the vicinity of these human seasonal aggregation sites. The argument is not that wolves were domesticated in central Europe. Rather, it is this pattern of hunter-gatherers who caught and reared wild wolf pups gathering seasonally in large numbers that might have been the catalyst for the early changes leading to the first domesticated dogs - whether in western Eurasia or further afield.
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Affiliation(s)
- Adam Brumm
- Australian Research Centre for Human Evolution, Griffith University, Brisbane, QLD, Australia
- *Correspondence: Adam Brumm,
| | | | - Loukas Koungoulos
- School of Humanities, The University of Sydney, Sydney, NSW, Australia
- College of Asia and the Pacific, The Australian National University, Canberra, NSW, Australia
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Fleming PA, Stobo-Wilson AM, Crawford HM, Dawson SJ, Dickman CR, Doherty TS, Fleming PJS, Newsome TM, Palmer R, Thompson JA, Woinarski JCZ. Distinctive diets of eutherian predators in Australia. ROYAL SOCIETY OPEN SCIENCE 2022; 9:220792. [PMID: 36312571 PMCID: PMC9554524 DOI: 10.1098/rsos.220792] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 09/16/2022] [Indexed: 06/01/2023]
Abstract
Introduction of the domestic cat and red fox has devastated Australian native fauna. We synthesized Australian diet analyses to identify traits of prey species in cat, fox and dingo diets, which prey were more frequent or distinctive to the diet of each predator, and quantified dietary overlap. Nearly half (45%) of all Australian terrestrial mammal, bird and reptile species occurred in the diets of one or more predators. Cat and dingo diets overlapped least (0.64 ± 0.27, n = 24 location/time points) and cat diet changed little over 55 years of study. Cats were more likely to have eaten birds, reptiles and small mammals than foxes or dingoes. Dingo diet remained constant over 53 years and constituted the largest mammal, bird and reptile prey species, including more macropods/potoroids, wombats, monotremes and bandicoots/bilbies than cats or foxes. Fox diet had greater overlap with both cats (0.79 ± 0.20, n = 37) and dingoes (0.73 ± 0.21, n = 42), fewer distinctive items (plant material, possums/gliders) and significant spatial and temporal heterogeneity over 69 years, suggesting the opportunity for prey switching (especially of mammal prey) to mitigate competition. Our study reinforced concerns about mesopredator impacts upon scarce/threatened species and the need to control foxes and cats for fauna conservation. However, extensive dietary overlap and opportunism, as well as low incidence of mesopredators in dingo diets, precluded resolution of the debate about possible dingo suppression of foxes and cats.
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Affiliation(s)
- Patricia A. Fleming
- Centre for Terrestrial Ecosystem Science and Sustainability, Harry Butler Institute, Murdoch University, 90 South Street, Murdoch, Western Australia 6150, Australia
| | - Alyson M. Stobo-Wilson
- NESP Threatened Species Recovery Hub, Charles Darwin University, Casuarina, Northern Territory 0909, Australia
- CSIRO Land and Water, PMB 44, Winnellie, Northern Territory 0822, Australia
| | - Heather M. Crawford
- Centre for Terrestrial Ecosystem Science and Sustainability, Harry Butler Institute, Murdoch University, 90 South Street, Murdoch, Western Australia 6150, Australia
| | - Stuart J. Dawson
- Centre for Terrestrial Ecosystem Science and Sustainability, Harry Butler Institute, Murdoch University, 90 South Street, Murdoch, Western Australia 6150, Australia
- Department of Primary Industries and Regional Development, 3 Baron-Hay Court, South Perth, Western Australia 6151, Australia
| | - Chris R. Dickman
- Desert Ecology Research Group, School of Life and Environmental Sciences, The University of Sydney, Heydon-Laurence Building A08, Camperdown, New South Wales 2006, Australia
| | - Tim S. Doherty
- School of Life and Environmental Sciences, The University of Sydney, Heydon-Laurence Building A08, Camperdown, New South Wales 2006, Australia
| | - Peter J. S. Fleming
- Vertebrate Pest Research Unit, NSW Department of Primary Industries, Orange Agricultural Institute, 1447 Forest Road, Orange, New South Wales 2800, Australia
- Ecosystem Management, School of Environmental and Rural Science, University of New England, Armidale, New South Wales 2351, Australia
- Institute for Agriculture and the Environment, Centre for Sustainable Agricultural Systems, University of Southern Queensland, Toowoomba, Queensland 4350, Australia.
| | - Thomas M. Newsome
- School of Life and Environmental Sciences, The University of Sydney, Heydon-Laurence Building A08, Camperdown, New South Wales 2006, Australia
| | - Russell Palmer
- Department of Biodiversity, Conservation and Attractions, Locked Bag 104, Bentley Delivery Centre, Western Australia 6983, Australia
| | - Jim A. Thompson
- Queensland Museum Network, PO Box 3300, South Brisbane BC, Queensland 4101, Australia
| | - John C. Z. Woinarski
- Research Institute for the Environment and Livelihoods, Charles Darwin University, Casuarina, Northern Territory 0909, Australia
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The Role of Socialisation in the Taming and Management of Wild Dingoes by Australian Aboriginal People. Animals (Basel) 2022; 12:ani12172285. [PMID: 36078005 PMCID: PMC9454437 DOI: 10.3390/ani12172285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 08/26/2022] [Accepted: 08/29/2022] [Indexed: 11/23/2022] Open
Abstract
Simple Summary The dingo (Canis dingo) is a wild-living canid endemic to mainland Australia; the descendent of an early lineage of dog introduced thousands of years ago to the continent, where it was isolated from further introductions of domestic canines until European colonisation began in 1788. Dingoes are notoriously difficult to maintain in captivity and owing to their predatory nature it is also known that they can pose a serious risk to children. Yet, written records and oral histories indicate that Aboriginal people in mainland Australia routinely practiced the rearing and keeping of dingoes in a tame state within their home communities and domestic spaces. This paper reviews historical and archaeological evidence for the management of wild and captive dingoes by Indigenous communities, revealing a substantial divide between the nature and outcomes of these interactions between historical/pre-contact Aboriginal societies and those in contemporary Australia. It is concluded that this special human-wild canid relationship has implications for the understanding of the domestication of dogs from wolves during the Late Pleistocene. Abstract Historical sources and Indigenous oral traditions indicate that Australian Aboriginal people commonly reared and kept the wild-caught pups of dingoes (C. dingo) as tamed companion animals. A review of the available evidence suggests Indigenous communities employed an intense socialisation process that forged close personal bonds between humans and their tame dingoes from an early age. This was complemented by oral traditions which passed down awareness of the dangers to children posed by wild or unfamiliar dingoes, and which communicated the importance of treating dingoes with respect. Together, these practices resulted in what can be interpreted as substantially altered behaviours in tamed dingoes, which, despite their naturally high prey drive, were not considered a serious threat to children and were thus able to be maintained as companion animals in the long term. This relationship is of importance for understanding the original domestication of the dog, as it demonstrates a means by which careful and deliberate socialisation by foragers could both manage risks to children’s safety posed by keeping wild canids in the domestic realm and retain them well into reproductive maturity—both issues which have been highlighted as obstacles to the domestication of dogs from wolves.
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12
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Thompson ER, Driscoll DA, Venn SE, Geary WL, Ritchie EG. Interspecific variation in the diet of a native apex predator and invasive mesopredator in an alpine ecosystem. AUSTRAL ECOL 2022. [DOI: 10.1111/aec.13214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Eilysh R. Thompson
- School of Life and Environmental Sciences, Centre for Integrative Ecology Deakin University Burwood Victoria 3125 Australia
| | - Don A. Driscoll
- School of Life and Environmental Sciences, Centre for Integrative Ecology Deakin University Burwood Victoria 3125 Australia
| | - Susanna E. Venn
- School of Life and Environmental Sciences, Centre for Integrative Ecology Deakin University Burwood Victoria 3125 Australia
| | - William L. Geary
- School of Life and Environmental Sciences, Centre for Integrative Ecology Deakin University Burwood Victoria 3125 Australia
| | - Euan G. Ritchie
- School of Life and Environmental Sciences, Centre for Integrative Ecology Deakin University Burwood Victoria 3125 Australia
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13
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Before Azaria: A Historical Perspective on Dingo Attacks. Animals (Basel) 2022; 12:ani12121592. [PMID: 35739928 PMCID: PMC9219548 DOI: 10.3390/ani12121592] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 06/10/2022] [Accepted: 06/16/2022] [Indexed: 12/22/2022] Open
Abstract
This paper investigates the origin of the once popular belief in Australian society that wild dingoes do not attack humans. To address this problem, a digital repository of archived newspaper articles and other published texts written between 1788 and 1979 were searched for references to dingoes attacking non-Indigenous people. A total of 52 accounts spanning the period between 1804 and 1928 was identified. A comparison of these historical accounts with the details of modern dingo attacks suggests that at least some of the former are credible. The paper also examined commonly held attitudes towards dingoes in past Australian society based on historical print media articles and other records. Early chroniclers of Australian rural life and culture maintained that dingoes occasionally killed and ate humans out of a predatory motivation. By the early decades of the 20th century, however, an opposing view of this species had emerged: namely, that dingoes were timid animals that continued to pose a danger to livestock, but never to people. This change in the cultural image of dingoes can possibly be linked to more than a century of lethal dingo control efforts greatly reducing the frequency of human–dingo interactions in the most populous parts of the country. This intensive culling may also have expunged the wild genetic pool of dingoes that exhibited bold behaviour around people and/or created a dingo population that was largely wary of humans.
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14
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Lesch R, Kitchener AC, Hantke G, Kotrschal K, Fitch WT. Cranial volume and palate length of cats, Felis spp., under domestication, hybridization and in wild populations. ROYAL SOCIETY OPEN SCIENCE 2022; 9:210477. [PMID: 35116138 PMCID: PMC8790375 DOI: 10.1098/rsos.210477] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 12/21/2021] [Indexed: 05/07/2023]
Abstract
Reduced brain size, compared with wild individuals, is argued to be a key characteristic of domesticated mammal species, and often cited as a key component of a putative 'domestication syndrome'. However, brain size comparisons are often based on old, inaccessible literature and in some cases drew comparisons between domestic animals and wild species that are no longer thought to represent the true progenitor species of the domestic species in question. Here we replicate studies on cranial volumes in domestic cats that were published in the 1960s and 1970s, comparing wildcats, domestic cats and their hybrids. Our data indicate that domestic cats indeed, have smaller cranial volumes (implying smaller brains) relative to both European wildcats (Felis silvestris) and the wild ancestors of domestic cats, the African wildcats (Felis lybica), verifying older results. We further found that hybrids of domestic cats and European wildcats have cranial volumes that cluster between those of the two parent species. Apart from replicating these studies, we also present new data on palate length in Felis cat skulls, showing that domestic cat palates are shorter than those of European wildcats but longer than those of African wildcats. Our data are relevant to current discussions of the causes and consequences of the 'domestication syndrome' in domesticated mammals.
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Affiliation(s)
- Raffaela Lesch
- Department of Behavioral and Cognitive Biology, Faculty of Life Sciences, University of Vienna, Vienna, Austria
- Institute of Animal Welfare Science, University for Veterinary Medicine, Vienna, Austria
| | | | - Georg Hantke
- Department Natural Sciences, National Museums Scotland, Edinburgh, UK
| | - Kurt Kotrschal
- Department of Behavioral and Cognitive Biology, Faculty of Life Sciences, University of Vienna, Vienna, Austria
| | - W. Tecumseh Fitch
- Department of Behavioral and Cognitive Biology, Faculty of Life Sciences, University of Vienna, Vienna, Austria
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15
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Brumm A, Bulbeck D, Hakim B, Burhan B, Oktaviana AA, Sumantri I, Zhao JX, Aubert M, Sardi R, McGahan D, Saiful AM, Adhityatama S, Kaifu Y. Skeletal remains of a Pleistocene modern human (Homo sapiens) from Sulawesi. PLoS One 2021; 16:e0257273. [PMID: 34587195 PMCID: PMC8480874 DOI: 10.1371/journal.pone.0257273] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 08/27/2021] [Indexed: 11/25/2022] Open
Abstract
Major gaps remain in our knowledge of the early history of Homo sapiens in Wallacea. By 70-60 thousand years ago (ka), modern humans appear to have entered this distinct biogeographical zone between continental Asia and Australia. Despite this, there are relatively few Late Pleistocene sites attributed to our species in Wallacea. H. sapiens fossil remains are also rare. Previously, only one island in Wallacea (Alor in the southeastern part of the archipelago) had yielded skeletal evidence for pre-Holocene modern humans. Here we report on the first Pleistocene human skeletal remains from the largest Wallacean island, Sulawesi. The recovered elements consist of a nearly complete palate and frontal process of a modern human right maxilla excavated from Leang Bulu Bettue in the southwestern peninsula of the island. Dated by several different methods to between 25 and 16 ka, the maxilla belongs to an elderly individual of unknown age and sex, with small teeth (only M1 to M3 are extant) that exhibit severe occlusal wear and related dental pathologies. The dental wear pattern is unusual. This fragmentary specimen, though largely undiagnostic with regards to morphological affinity, provides the only direct insight we currently have from the fossil record into the identity of the Late Pleistocene people of Sulawesi.
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Affiliation(s)
- Adam Brumm
- Australian Research Centre for Human Evolution, Griffith University, Brisbane, Australia
| | - David Bulbeck
- Archaeology and Natural History, School of Culture, History and Language, College of Asia and the Pacific, Australian National University, Canberra, Australia
| | | | - Basran Burhan
- Australian Research Centre for Human Evolution, Griffith University, Brisbane, Australia
| | - Adhi Agus Oktaviana
- Pusat Penelitian Arkeologi Nasional (ARKENAS), Jakarta, Indonesia
- Place, Evolution and Rock Art Heritage Unit, Griffith Centre for Social and Cultural Research, Griffith University, Gold Coast, Australia
| | - Iwan Sumantri
- Archaeology Laboratory, Hasanuddin University, Makassar, Indonesia
| | - Jian-xin Zhao
- School of Earth & Environmental Sciences, University of Queensland, St. Lucia, Queensland, Australia
| | - Maxime Aubert
- Australian Research Centre for Human Evolution, Griffith University, Brisbane, Australia
- Place, Evolution and Rock Art Heritage Unit, Griffith Centre for Social and Cultural Research, Griffith University, Gold Coast, Australia
| | - Ratno Sardi
- Balai Arkeologi Sulawesi Selatan, Makassar, Indonesia
| | - David McGahan
- Australian Research Centre for Human Evolution, Griffith University, Brisbane, Australia
| | | | | | - Yousuke Kaifu
- The University Museum, The University of Tokyo, Bunkyo, Tokyo, Japan
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16
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Castle G, Smith D, Allen LR, Allen BL. Terrestrial mesopredators did not increase after top-predator removal in a large-scale experimental test of mesopredator release theory. Sci Rep 2021; 11:18205. [PMID: 34521924 PMCID: PMC8440509 DOI: 10.1038/s41598-021-97634-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 08/25/2021] [Indexed: 12/02/2022] Open
Abstract
Removal or loss of top-predators has been predicted to cause cascading negative effects for ecosystems, including mesopredator release. However, reliable evidence for these processes in terrestrial systems has been mixed and equivocal due, in large part, to the systemic and continued use of low-inference study designs to investigate this issue. Even previous large-scale manipulative experiments of strong inferential value have been limited by experimental design features (i.e. failure to prevent migration between treatments) that constrain possible inferences about the presence or absence of mesopredator release effects. Here, we build on these previous strong-inference experiments and report the outcomes of additional large-scale manipulative experiments to eradicate Australian dingoes from two fenced areas where dingo migration was restricted and where theory would predict an increase in extant European red foxes, feral cats and goannas. We demonstrate the removal and suppression of dingoes to undetectable levels over 4–5 years with no corresponding increases in mesopredator relative abundances, which remained low and stable throughout the experiment at both sites. We further demonstrate widespread absence of negative relationships between predators, indicating that the mechanism underpinning predicted mesopredator releases was not present. Our results are consistent with all previous large-scale manipulative experiments and long-term mensurative studies which collectively demonstrate that (1) dingoes do not suppress red foxes, feral cats or goannas at the population level, (2) repeated, temporary suppression of dingoes in open systems does not create mesopredator release effects, and (3) removal and sustained suppression of dingoes to undetectable levels in closed systems does not create mesopredator release effects either. Our experiments add to similar reports from North America, Asia, Europe and southern Africa which indicate that not only is there a widespread absence of reliable evidence for these processes, but there is also a large and continually growing body of experimental evidence of absence for these processes in many terrestrial systems. We conclude that although sympatric predators may interact negatively with each other on smaller spatiotemporal scales, that these negative interactions do not always scale-up to the population level, nor are they always strong enough to create mesopredator suppression or release effects.
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Affiliation(s)
- Geoff Castle
- Institute for Life Sciences and the Environment, University of Southern Queensland, Toowoomba, QLD, 4350, Australia
| | - Deane Smith
- Institute for Life Sciences and the Environment, University of Southern Queensland, Toowoomba, QLD, 4350, Australia.,NSW Department of Primary Industries, Vertebrate Pest Research Unit, Armidale, NSW, 2351, Australia
| | - Lee R Allen
- Department of Agriculture and Fisheries, Queensland Government, Toowoomba, QLD, 4350, Australia
| | - Benjamin L Allen
- Institute for Life Sciences and the Environment, University of Southern Queensland, Toowoomba, QLD, 4350, Australia. .,Centre for African Conservation Ecology, Nelson Mandela University, Port Elizabeth, 6034, South Africa.
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17
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Roshier DA, Carter A. Space use and interactions of two introduced mesopredators, European red fox and feral cat, in an arid landscape. Ecosphere 2021. [DOI: 10.1002/ecs2.3628] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- David A. Roshier
- Australian Wildlife Conservancy PO Box 8070 Subiaco East Western Australia 6008 Australia
| | - Andrew Carter
- Australian Wildlife Conservancy PO Box 8070 Subiaco East Western Australia 6008 Australia
- Institute for Land, Water and Society Charles Sturt University PO Box 789 Albury New South Wales 2640 Australia
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18
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Zhang M, Sun G, Ren L, Yuan H, Dong G, Zhang L, Liu F, Cao P, Ko AMS, Yang MA, Hu S, Wang GD, Fu Q. Ancient DNA Evidence from China Reveals the Expansion of Pacific Dogs. Mol Biol Evol 2021; 37:1462-1469. [PMID: 31913480 DOI: 10.1093/molbev/msz311] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The ancestral homeland of Australian dingoes and Pacific dogs is proposed to be in South China. However, the location and timing of their dispersal and relationship to dog domestication is unclear. Here, we sequenced 7,000- to 2,000-year-old complete mitochondrial DNA (mtDNA) genomes of 27 ancient canids (one gray wolf and 26 domestic dogs) from the Yellow River and Yangtze River basins (YYRB). These are the first complete ancient mtDNA of Chinese dogs from the cradle of early Chinese civilization. We found that most ancient dogs (18/26) belong to the haplogroup A1b lineage that is found in high frequency in present-day Australian dingoes and precolonial Pacific Island dogs but low frequency in present-day China. Particularly, a 7,000-year-old dog from the Tianluoshan site in Zhejiang province possesses a haplotype basal to the entire haplogroup A1b lineage. We propose that A1b lineage dogs were once widely distributed in the YYRB area. Following their dispersal to South China, and then into Southeast Asia, New Guinea and remote Oceania, they were largely replaced by dogs belonging to other lineages in the last 2,000 years in present-day China, especially North China.
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Affiliation(s)
- Ming Zhang
- Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China.,CAS Center for Excellence in Life and Paleoenvironment, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Guoping Sun
- Zhejiang Provincial Institute of Relics and Archaeology, Hangzhou, China
| | - Lele Ren
- School of History and Culture, Lanzhou University, Lanzhou, China
| | - Haibing Yuan
- National Demonstration Center for Experimental Archaeology Education, Department of Archaeology, Sichuan University, Chengdu, China
| | - Guanghui Dong
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, China
| | - Lizhao Zhang
- Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China
| | - Feng Liu
- Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China
| | - Peng Cao
- Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China
| | - Albert Min-Shan Ko
- Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China
| | - Melinda A Yang
- Department of Biology, University of Richmond, Richmond, VA
| | - Songmei Hu
- Shaanxi Academy of Archaeology, Xi'an, China
| | - Guo-Dong Wang
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China.,Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming, China
| | - Qiaomei Fu
- Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China.,CAS Center for Excellence in Life and Paleoenvironment, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
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19
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Cairns KM, Newman KD, Crowther MS, Letnic M. Pelage variation in dingoes across southeastern Australia: implications for conservation and management. J Zool (1987) 2021. [DOI: 10.1111/jzo.12875] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- K. M. Cairns
- Centre for Ecosystem Science School of Biological, Earth and Environmental Sciences University of New South Wales Sydney NSW Australia
- Evolution and Ecology Research Centre School of Biological, Earth and Environmental Sciences University of New South Wales Sydney NSW Australia
| | - K. D. Newman
- School of Biosciences University of Melbourne Parkville VIC Australia
| | - M. S. Crowther
- School of Life and Environmental Sciences University of Sydney Sydney NSW Australia
| | - M. Letnic
- Centre for Ecosystem Science School of Biological, Earth and Environmental Sciences University of New South Wales Sydney NSW Australia
- Evolution and Ecology Research Centre School of Biological, Earth and Environmental Sciences University of New South Wales Sydney NSW Australia
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20
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Tatler J, Prowse TA, Roshier DA, Cairns KM, Cassey P. Phenotypic variation and promiscuity in a wild population of pure dingoes (
Canis dingo
). J ZOOL SYST EVOL RES 2021. [DOI: 10.1111/jzs.12418] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Jack Tatler
- Centre for Applied Conservation Science and School of Biological Sciences University of Adelaide Adelaide South Australia Australia
| | - Thomas A.A. Prowse
- School of Mathematical Sciences University of Adelaide Adelaide South Australia Australia
| | - David A. Roshier
- Australian Wildlife Conservancy Subiaco East Western Australia Australia
- Centre for Ecosystem Science University of New South Wales Sydney New South Wales Australia
| | - Kylie M. Cairns
- Centre for Ecosystem Science University of New South Wales Sydney New South Wales Australia
- Evolution & Ecology Research Centre, School of Biological, Earth and Environmental Sciences University of New South Wales Sydney New South Wales Australia
| | - Phillip Cassey
- Centre for Applied Conservation Science and School of Biological Sciences University of Adelaide Adelaide South Australia Australia
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21
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Dog colour patterns explained by modular promoters of ancient canid origin. Nat Ecol Evol 2021; 5:1415-1423. [PMID: 34385618 PMCID: PMC8484016 DOI: 10.1038/s41559-021-01524-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 07/01/2021] [Indexed: 02/06/2023]
Abstract
Distinctive colour patterns in dogs are an integral component of canine diversity. Colour pattern differences are thought to have arisen from mutation and artificial selection during and after domestication from wolves but important gaps remain in understanding how these patterns evolved and are genetically controlled. In other mammals, variation at the ASIP gene controls both the temporal and spatial distribution of yellow and black pigments. Here, we identify independent regulatory modules for ventral and hair cycle ASIP expression, and we characterize their action and evolutionary origin. Structural variants define multiple alleles for each regulatory module and are combined in different ways to explain five distinctive dog colour patterns. Phylogenetic analysis reveals that the haplotype combination for one of these patterns is shared with Arctic white wolves and that its hair cycle-specific module probably originated from an extinct canid that diverged from grey wolves more than 2 million years ago. Natural selection for a lighter coat during the Pleistocene provided the genetic framework for widespread colour variation in dogs and wolves.
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22
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Shipman P. What the dingo says about dog domestication. Anat Rec (Hoboken) 2020; 304:19-30. [PMID: 33103861 PMCID: PMC7756258 DOI: 10.1002/ar.24517] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 06/22/2020] [Accepted: 06/22/2020] [Indexed: 01/27/2023]
Abstract
Worldwide, dogs (Canis familiaris) are certainly the most common domesticate (900 million according to the World Atlas) and are sometimes used as a proxy for human presence. Dogs were the first and therefore arguably most important species ever to be domesticated. It is widely accepted that the domestic dog is a descendent of Pleistocene gray wolves (Canis lupus), possibly of a population now extinct. How can an extant canid, the dingo (Canis dingo or Canis familiaris), whose status as a species and as a domesticate is controversial, improve our understanding of the ancient process of domesticating the dog? Here I review anatomical, behavioral, biogeographic, and molecular evidence on the appropriate status of dingoes in a historical context. Dingoes are now the major apex predator in Australia aside from humans. Different sources of evidence have suggested different times of arrival in Greater Australia for humans and canids and different degrees of intimacy or domestication between humans and canids. Just as domestic dogs are often accorded near‐human status, dingoes have special relationships with human families, but reproductively and behaviorally they remain independent. In sum, traits of the dingo reflect its lupine ancestry, a certain degree of accommodation to human company, and unique adaptations to the demands of its habitat. Emphasizing that domestication is a long‐term process, not an event, helps clarify the ambiguous status of dingoes.
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Affiliation(s)
- Pat Shipman
- Department of Anthropology, Pennsylvania State University, State College, Pennsylvania, USA
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23
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Eeden L, Dickman C, Crowther M, Newsome T. A Theory of Change for promoting coexistence between dingoes and livestock production. CONSERVATION SCIENCE AND PRACTICE 2020. [DOI: 10.1111/csp2.304] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Affiliation(s)
- Lily Eeden
- School of Life and Environmental Sciences The University of Sydney Sydney Australia
| | - Christopher Dickman
- School of Life and Environmental Sciences The University of Sydney Sydney Australia
| | - Mathew Crowther
- School of Life and Environmental Sciences The University of Sydney Sydney Australia
| | - Thomas Newsome
- School of Life and Environmental Sciences The University of Sydney Sydney Australia
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24
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Edwards MC, Hoy JM, FitzGibbon SI, Murray PJ. Relaxed predation theory: size, sex and brains matter. Biol Rev Camb Philos Soc 2020; 96:153-161. [PMID: 32441454 DOI: 10.1111/brv.12611] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 04/26/2020] [Accepted: 04/28/2020] [Indexed: 01/23/2023]
Abstract
Australia's wildlife is being considerably impacted by introduced mammalian predators such as cats (Felis catus), dogs (Canis lupus familiaris), and foxes (Vulpes vulpes). This is often attributed to native wildlife being naïve to these introduced predators. A systematic review of the literature reveals that native metatherians (body mass range 0.02-25 kg) do not recognise, and show relaxed antipredator behaviours towards, native and some introduced mammalian predators. Native eutherians (all with body mass < 2 kg), however, do appear to recognise and exhibit antipredator behaviours towards both native and introduced predators. Based on our findings, we propose a novel theory, the 'Relaxed Predation Theory'. Our new theory is based on the absence of large mammalian predators leading to reduced predation pressure in Australia during the past 40000-50000 years, and on three key differences between Australian metatherians and eutherians: size, sex, and brains. In light of this Relaxed Predation Theory, we make a number of recommendations for the conservation of Australian wildlife: (i) predator avoidance training of suitable species; (ii) exclusion fencing to exclude some, but not all, predators to facilitate the development of antipredator behaviours; (iii) captive breeding programs to prevent the extinction of some species; and (iv) reintroduction of Australia's larger predators, potentially to compete with and displace introduced predators. A more detailed understanding of the responses of Australian mammals to predators will hopefully contribute to the improved conservation of susceptible species.
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Affiliation(s)
- Megan C Edwards
- School of Agriculture and Food Sciences, The University of Queensland, Gatton Campus, 4343, Queensland, Australia.,Hidden Vale Wildlife Centre, The University of Queensland, 617 Grandchester Mount-Mort Road, Grandchester, 4340, Queensland, Australia
| | - Julia M Hoy
- Hidden Vale Wildlife Centre, The University of Queensland, 617 Grandchester Mount-Mort Road, Grandchester, 4340, Queensland, Australia
| | - Sean I FitzGibbon
- School of Agriculture and Food Sciences, The University of Queensland, Gatton Campus, 4343, Queensland, Australia
| | - Peter J Murray
- School of Agriculture and Food Sciences, The University of Queensland, Gatton Campus, 4343, Queensland, Australia
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25
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Old dogs, new tricks: 3D geometric analysis of cranial morphology supports ancient population substructure in the Australian dingo. ZOOMORPHOLOGY 2020. [DOI: 10.1007/s00435-019-00475-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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26
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Abstract
BACKGROUND The Australian dingo continues to cause debate amongst Aboriginal people, pastoralists, scientists and the government in Australia. A lingering controversy is whether the dingo has been tamed and has now reverted to its ancestral wild state or whether its ancestors were domesticated and it now resides on the continent as a feral dog. The goal of this article is to place the discussion onto a theoretical framework, highlight what is currently known about dingo origins and taxonomy and then make a series of experimentally testable organismal, cellular and biochemical predictions that we propose can focus future research. DISCUSSION We consider a canid that has been unconsciously selected as a tamed animal and the endpoint of methodical or what we now call artificial selection as a domesticated animal. We consider wild animals that were formerly tamed as untamed and those wild animals that were formerly domesticated as feralized. Untamed canids are predicted to be marked by a signature of unconscious selection whereas feral animals are hypothesized to be marked by signatures of both unconscious and artificial selection. First, we review the movement of dingo ancestors into Australia. We then discuss how differences between taming and domestication may influence the organismal traits of skull morphometrics, brain and size, seasonal breeding, and sociability. Finally, we consider cellular and molecular level traits including hypotheses concerning the phylogenetic position of dingoes, metabolic genes that appear to be under positive selection and the potential for micronutrient compensation by the gut microbiome. CONCLUSIONS Western Australian Government policy is currently being revised to allow the widespread killing of the Australian dingo. These policies are based on an incomplete understanding of the evolutionary history of the canid and assume the dingo is feralized. However, accumulated evidence does not definitively show that the dingo was ever domesticated and additional focused research is required. We suggest that incorporating ancient DNA data into the debate concerning dingo origins will be pivotal to understanding the evolutionary history of the canid. Further, we advocate that future morphological, behavioural and genetic studies should focus on including genetically pure Alpine and Desert dingoes and not dingo-dog hybrids. Finally, we propose that future studies critically examine genes under selection in the dingo and employ the genome from a wild canid for comparison.
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Affiliation(s)
- J. William O. Ballard
- School of Biotechnology and Biomolecular Science, University of New South Wales, Sydney, NSW 2052 Australia
| | - Laura A. B. Wilson
- School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, NSW 2052 Australia
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