Sarcophilus harrisii (Dasyuromorphia: Dasyuridae)

Rose, Robert K.; Pemberton, David; Mooney, Nick; Jones, Menna Lloyd

doi:10.1093/mspecies/sex001

Cited by 23 publications

(30 citation statements)

References 94 publications

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“…Bopy Mass: Compared to other borhyaenoids, Eomakhaira molossus is notable for its small size. Regression equations of the lower dentition from Myers (2001) and Gordon (2003) yield body mass estimates of 9.5-10 kg for Eomakhaira molossus (table $10), comparable to a male Tasmanian devil (Sarcophilus harristi; Rose et al, 2016). The holotype specimen, SGOPV 3490, is comparable in size to a skull of Sarcophilus, though SGOPV 3490 is deeper and narrower.…”

Section: Discussion Paleobiology Of Sgopv 3490mentioning

confidence: 93%

Eomakhaira molossus, A New Saber-Toothed Sparassodont (Metatheria: Thylacosmilinae) from the Early Oligocene (?Tinguirirican) Cachapoal Locality, Andean Main Range, Chile

Engelman

Flynn

Wyss

et al. 2020

American Museum Novitates

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Thylacosmiline sparassodonts (previously recognized as thylacosmilids) are among the most iconic groups of endemic South American Cenozoic mammals due to their distinctive morphology and convergent resemblance to saber-toothed placental carnivores. However, the early evolution of this group and its relationship to other sparassodonts remains poorly understood, primarily because only highly specialized Neogene taxa such as Thylacosmilus, Anachlysictis, and Patagosmilus are well known. Here, we describe a new Paleogene sparassodont, Eomakhaira molossus, from the Cachapoal locality of central Chile, the first sparassodont reported from early Oligocene strata of the Abanico Formation. Eomakhaira shares features with both Neogene thylacosmilines and Paleogene "proborhyaenids,' and phylogenetic analyses recover this taxon as sister to the clade of Patagosmilus + Thylacosmilus. This broader clade, in turn, is nested within the group conventionally termed Proborhyaenidae. Our analyses support prior hypotheses of a close relationship between thylacosmilines and traditionally recognized proborhyaenids and provide the strongest evidence to date that thylacosmilines are proborhyaenids (i.e, the latter name as conventionally used refers to a paraphyletic group). To reflect the internestedness of these taxa, we

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Section: Discussion Paleobiology Of Sgopv 3490mentioning

confidence: 93%

Eomakhaira molossus, A New Saber-Toothed Sparassodont (Metatheria: Thylacosmilinae) from the Early Oligocene (?Tinguirirican) Cachapoal Locality, Andean Main Range, Chile

Engelman

Flynn

Wyss

et al. 2020

American Museum Novitates

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“…Additionally, DFTD infection is probably associated with olfactory cues, as ulcerated tumours are regularly the source of secondary infections and necrosis. Devils have a keen sense of smell [52], so it is conceivable that they would react to DFTD olfactory cues, potentially influencing contact behaviour. Nonetheless, our results suggest that healthy individuals are not avoiding diseased individuals entirely.…”

Section: Discussionmentioning

confidence: 99%

“…For example, a femalefemale relationship persisted through the entire six-month study period, including after one female began to develop clinical signs of DFTD. Most of the dyads' interactions took place during the day, indicating the females were regularly denning together (devils are nocturnal; [52]); a behaviour unlikely to result in competitive interactions or injury [35].…”

Section: Discussionmentioning

confidence: 99%

Infectious disease and sickness behaviour: tumour progression affects interaction patterns and social network structure in wild Tasmanian devils

et al. 2020

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Infectious diseases, including transmissible cancers, can have a broad range of impacts on host behaviour, particularly in the latter stages of disease progression. However, the difficulty of early diagnoses makes the study of behavioural influences of disease in wild animals a challenging task. Tasmanian devils ( Sarcophilus harrisii ) are affected by a transmissible cancer, devil facial tumour disease (DFTD), in which tumours are externally visible as they progress. Using telemetry and mark–recapture datasets, we quantify the impacts of cancer progression on the behaviour of wild devils by assessing how interaction patterns within the social network of a population change with increasing tumour load. The progression of DFTD negatively influences devils' likelihood of interaction within their network. Infected devils were more active within their network late in the mating season, a pattern with repercussions for DFTD transmission. Our study provides a rare opportunity to quantify and understand the behavioural feedbacks of disease in wildlife and how they may affect transmission and population dynamics in general.

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“…The Tasmanian devil ( Sarcophilus harrisii ), the largest extant carnivorous marsupial [ 63 ], could act in this role, if rock-wallabies were introduced to Tasmania, by reducing the probability of dispersal beyond rocky refuge areas to which they are introduced. Even if adult rock-wallabies could evade devils, the population would probably be limited to rocky areas.…”

Section: Discussionmentioning

confidence: 99%

Roughing it: terrain is crucial in identifying novel translocation sites for the vulnerable brush-tailed rock-wallaby (Petrogale pencillata)

2020

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Translocations—the movement of species from one place to another—are likely to become more common as conservation attempts to protect small isolated populations from threats posed by extreme events such as bushfires. The recent Australian mega-fires burnt almost 40% of the habitat of the brush-tailed rock-wallaby ( Petrogale pencillata ), a threatened species whose distribution is already restricted, primarily due to predation by invasive species. This chronic threat of over-predation, coupled with the possible extinction of the genetically distinct southern population (approx. 40 individuals in the wild), makes this species a candidate for a conservation translocation. Here, we use species distribution models to identify translocation sites for the brush-tailed rock-wallaby. Our models exhibited high predictive accuracy, and show that terrain roughness, a surrogate for predator refugia, is the most important variable. Tasmania, which currently has no rock-wallabies, showed high suitability and is fox-free, making it a promising candidate site. We outline our argument for the trial translocation of rock-wallaby to Maria Island, located off Tasmania's eastern coast. This research offers a transparent assessment of the translocation potential of a threatened species, which can be adapted to other taxa and systems.

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Sarcophilus harrisii (Dasyuromorphia: Dasyuridae)

Cited by 23 publications

References 94 publications

Eomakhaira molossus, A New Saber-Toothed Sparassodont (Metatheria: Thylacosmilinae) from the Early Oligocene (?Tinguirirican) Cachapoal Locality, Andean Main Range, Chile

Eomakhaira molossus, A New Saber-Toothed Sparassodont (Metatheria: Thylacosmilinae) from the Early Oligocene (?Tinguirirican) Cachapoal Locality, Andean Main Range, Chile

Infectious disease and sickness behaviour: tumour progression affects interaction patterns and social network structure in wild Tasmanian devils

Roughing it: terrain is crucial in identifying novel translocation sites for the vulnerable brush-tailed rock-wallaby (Petrogale pencillata)

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