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Journal articles on the topic 'Antechinus'

Author: Grafiati
Published: 4 June 2021
Last updated: 20 February 2023

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1

Sale, M. G., F. J. L. Kraaijeveld-Smit, and J. P. Y. Arnould. "Multiple paternity in the swamp antechinus (Antechinus minimus)." Australian Mammalogy 35, no. 2 (2013): 227. http://dx.doi.org/10.1071/am12039.

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Multiple paternity within litters or broods occurs across a variety of taxa. In the present study, paternity patterns in the swamp antechinus (Antechinus minimus), a small carnivorous marsupial, were investigated using genetic analyses. Microsatellite data confirmed that, of 10 litters sampled from two habitats, a minimum of eight litters were sired by more than one male. Mating with multiple males may enable female swamp antechinuses to increase offspring viability and to ensure fertilisation.
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2

Smith, Geoffrey C., Kath Means, and Sue Churchill. "Aspects of the ecology of the Atherton antechinus (Antechinus godmani) living in sympatry with the rusty antechinus (A. adustus) in the Wet Tropics, Queensland – a trapping and radio-tracking study." Australian Mammalogy 40, no. 1 (2018): 16. http://dx.doi.org/10.1071/am16050.

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The ecology of the geographically restricted Atherton antechinus (Antechinus godmani) is poorly known. This trapping and radio-tracking study provides historical baseline information on its ecology. The Atherton antechinus foraged primarily at night in deep leaf litter and rotting logs. The sympatric, smaller rusty antechinus (A. adustus) was arboreal and active both day and night, suggesting resource partitioning between species. The diet of the Atherton antechinus included a significant component of beetles, centipedes, spiders, cockroaches, crickets, and ants; minor items included a frog and a skink. Declines in male condition of both antechinus species occurred in June–July. Free-living young of the rusty and the Atherton antechinus were first trapped in November and January, respectively. Minimum convex polygon home ranges for the Atherton antechinus were 2.5–5.8 ha for males and 3.6 ha for a female. Multiple nest sites were used by individual Atherton antechinuses with simultaneous sharing of nests observed only between sexes. A home range of a single female was overlapped by the home ranges of numerous males. The Atherton antechinus prefers contiguous areas of wet tropical upland rainforest with old-growth characteristics, including large old trees for nest sites, fallen woody debris and deep leaf litter for foraging. The impacts of climate change could be devastating.
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3

Kämper, Wiebke, Jonathan K. Webb, Mathew S. Crowther, Matthew J. Greenlees, and Richard Shine. "Behaviour and survivorship of a dasyurid predator (Antechinus flavipes) in response to encounters with the toxic and invasive cane toad (Rhinella marina)." Australian Mammalogy 35, no. 2 (2013): 136. http://dx.doi.org/10.1071/am12025.

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Australia’s biogeographical isolation has rendered many endemic species vulnerable to invaders. The recent spread of the cane toad (Rhinella marina) has caused serious population declines for some predatory reptile and mammal species. To determine a priori whether or not cane toad poisoning endangers native species, we can test the fates of predators in laboratory trials. We investigated whether an Australian marsupial whose range is increasingly being occupied by cane toads (the yellow-footed antechinus, Antechinus flavipes) is at risk of toad poisoning by testing (1) whether yellow-footed antechinuses approach or attack cane toads and, if so, whether they die as a result; and (2) if they survive, whether they then learn to avoid toads in subsequent encounters. We also investigated the effects of sympatry with toads on the feeding response. In all, 58% of antechinuses from eastern New South Wales approached or attacked a toad (over 4 or 5 opportunities to do so, on successive nights), and none showed ill effects after doing so. Antechinuses that attacked (killed or ingested) toads rapidly learnt to avoid them. Antechinuses from toad-exposed populations ingested more toad flesh, but otherwise reacted in the same ways as did conspecifics from toad-free areas. Hence, the yellow-footed antechinus is unlikely to face population declines via toad poisoning.
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4

Lorch, Dagmar, Diana O. Fisher, and David M. Spratt. "Variation in ectoparasite infestation on the brown antechinus, Antechinus stuartii, with regard to host, habitat and environmental parameters." Australian Journal of Zoology 55, no. 3 (2007): 169. http://dx.doi.org/10.1071/zo06073.

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We studied ectoparasite infestation patterns in a wild population of brown antechinuses, Antechinus stuartii (Dasyuridae) at three sites in south-eastern New South Wales, over a period of seven months. Ectoparasite diversity on brown antechinuses was particularly high for a small mammal: 18 species of ectoparasites were recorded, including one undescribed species of mite. Ectoparasite infestation varied between study sites and changed seasonally. Variation between sites was related to habitat and environmental parameters, and the highest ectoparasite infestations were encountered in the coolest habitat with greatest depth of leaf litter. Host population densities varied only slightly between sites, and host density was not considered to be a primary factor influencing ectoparasite infestation. This is the first study to provide a host record of ectoparasites of Antechinus stuartii sensu stricto.
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5

Parrott, Marissa L., Simon J. Ward, Peter D. Temple-Smith, and Lynne Selwood. "Effects of drought on weight, survival and breeding success of agile antechinus (Antechinus agilis), dusky antechinus (A. swainsonii) and bush rats (Rattus fuscipes)." Wildlife Research 34, no. 6 (2007): 437. http://dx.doi.org/10.1071/wr07071.

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Extreme weather conditions, such as drought, significantly decrease the survival and breeding success of numerous species. Despite the frequent occurrence of such conditions in Australia, little is known about the effects of changing environmental conditions on the native small mammals. This study, conducted from 2002 to 2004, focussed on sympatric wild populations of the agile antechinus (Antechinus agilis), with more limited information on the dusky antechinus (A. swainsonii) and the bush rat (Rattus fuscipes). Bodyweights of agile antechinus before and during the breeding season were significantly lower in 2003 (drought) than in 2002 or 2004. Survival of female agile antechinus and the number of young per litter also decreased significantly during drought. In contrast, the dusky antechinus showed no difference in mean bodyweights between years, high survival rates of females and similar litter sizes in 2002 and 2003. There was also no difference in bodyweight of bush rats between years. Low rainfall was recorded during pregnancy and lactation in the agile antechinus, but rainfall was higher during pregnancy and lactation in the dusky antechinus. The survival and breeding success of the agile antechinus may have been adversely affected by a combination of interspecific competition, timing of the breeding season and severity of the drought.
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6

Brandies, Parice A., Simon Tang, Robert S. P. Johnson, Carolyn J. Hogg, and Katherine Belov. "The first Antechinus reference genome provides a resource for investigating the genetic basis of semelparity and age-related neuropathologies." Gigabyte 2020 (November 5, 2020): 1–22. http://dx.doi.org/10.46471/gigabyte.7.

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Antechinus are a genus of mouse-like marsupials that exhibit a rare reproductive strategy known as semelparity and also naturally develop age-related neuropathologies similar to those in humans. We provide the first annotated antechinus reference genome for the brown antechinus (Antechinus stuartii). The reference genome is 3.3 Gb in size with a scaffold N50 of 73Mb and 93.3% complete mammalian BUSCOs. Using bioinformatic methods we assign scaffolds to chromosomes and identify 0.78 Mb of Y-chromosome scaffolds. Comparative genomics revealed interesting expansions in the NMRK2 gene and the protocadherin gamma family, which have previously been associated with aging and age-related dementias respectively. Transcriptome data displayed expression of common Alzheimer’s related genes in the antechinus brain and highlight the potential of utilising the antechinus as a future disease model. The valuable genomic resources provided herein will enable future research to explore the genetic basis of semelparity and age-related processes in the antechinus.
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7

Lees, Dylan M., Darcy J. Watchorn, Don A. Driscoll, and Tim S. Doherty. "Microhabitat selection by small mammals in response to fire." Australian Journal of Zoology 69, no. 3 (February 11, 2022): 67–79. http://dx.doi.org/10.1071/zo21022.

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Understanding how fire influences animal behaviour, such as movement and resource selection, is important for ecosystem management because it can improve our capacity to predict how species will respond. We assessed microhabitat selection by two small mammals, the bush rat (Rattus fuscipes) and agile antechinus (Antechinus agilis), in response to a low intensity prescribed fire. We used spool and line tracking and touch pole vegetation surveys to quantify microhabitat selection along 21 trails for bush rats and 22 for antechinuses before and after fire. In unburnt areas, bush rats showed positive selection for sedges, logs, and habitat complexity, with selection further increasing in burnt areas for sedges, ferns, shrubs, habitat complexity and unburnt patches. Agile antechinuses showed no significant microhabitat selection in unburnt or burnt areas and no change in response to fire. Their lack of response to ground fires may be due, partially, to their scansorial behaviour and use of tree hollows as refuge sites. Strong selection by bush rats for small unburnt patches suggests that even low intensity, patchy fires such as planned burns can impact bush rats and that high burn patchiness may help bush rats persist in recently burnt areas. Future fire planning should consider both behavioural and population responses of animals to fire.
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8

Davies, Micah J., and Alex Drew. "Monitoring of small mammal populations in the Brindabella Ranges after fire." Australian Mammalogy 36, no. 1 (2014): 103. http://dx.doi.org/10.1071/am13017.

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We live-trapped small mammals in the Brindabella Ranges west of Canberra, Australian Capital Territory from April 2009 until October 2011 to assess population recovery after an intense and widespread fire that occurred across the region in 2003. Three native mammals (agile antechinus, Antechinus agilis; dusky antechinus, Antechinus swainsonii; bush rat, Rattus fuscipes) were encountered. Trapping records and spool-and-line movement patterns suggested a strong association of these small mammals with moist gully vegetation that had survived the fire.
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9

Shimmin, Glenn A., David A. Taggart, and Peter D. Temple-Smith. "Mating behaviour in the agile antechinus Antechinus agilis (Marsupialia: Dasyuridae)." Journal of Zoology 258, no. 1 (September 2002): 39–48. http://dx.doi.org/10.1017/s0952836902001188.

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10

Crowther, M. S. "Morphological variation within Antechinus agilis and Antechinus stuartii (Marsupialia : Dasyuridae)." Australian Journal of Zoology 50, no. 4 (2002): 339. http://dx.doi.org/10.1071/zo01030.

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A study of morphological variation within and between Antechinus stuartii and A. agilis was undertaken to assess whether previously described diagnostic features of these taxa apply across their ranges. This also allowed resolution of the identity of Antechinus populations from southern New South Wales and Victoria, and identification of areas of sympatry between these two taxa. Morphological variation within both of these taxa was also quantified. Both species are extremely variable in size, and the characters used to diagnose the taxa do not appear to be consistent across the species' ranges. It was confirmed that all populations studied within Victoria are A. agilis. In addition to Kioloa on the south coast of New South Wales, another area of sympatry was identified in the Newnes Plateau, west of Sydney. There is some latitudinal and altitudinal variation in morphology and nipple number, which may be related to the seasonal availability of resources between different geographical areas.
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11

Buckmaster, A. J., and C. R. Dickman. "Early onset of reproduction in the agile antechinus, Antechinus agilis." Australian Mammalogy 35, no. 1 (2013): 115. http://dx.doi.org/10.1071/am11046.

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Ovulation in the agile antechinus, Antechinus agilis, usually occurs when the rate of change of photoperiod in spring is increasing at 127–137 s day–1. We report responses to a much slower rate of change of photoperiod in a population in far east Gippsland, Victoria, and discuss the ecological consequences and management significance of early breeding.
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12

BAKER, ANDREW M., and STEVE VAN DYCK. "Taxonomy and redescription of the Fawn Antechinus, Antechinus bellus (Thomas) (Marsupialia: Dasyuridae)." Zootaxa 3613, no. 3 (February 11, 2013): 201–28. http://dx.doi.org/10.11646/zootaxa.3613.3.1.

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We provide a taxonomic redescription of the Fawn Antechinus, Antechinus bellus (Thomas). A. bellus is the only member of its genus to occur in Australia’s Northern Territory, where it can be found in savannah woodlands of the Top End. It is perhaps the most distinctive antechinus, and clearly distinguishable from the other 10 extant species of antechinus found in Australia: externally, A. bellus has pale body fur, white feet and large ears; A. bellus skulls have large auditory bullae and narrow interorbital width, while broadening abruptly at the molar row; mitochondrial and nuclear genes clearly dis-tinguish A. bellus from all congeners, phylogenetically positioning the Fawn Antechinus as sister to Queensland’s A. leo Van Dyck, 1980, with which it shares a curled supratragus of the external ear and a similar tropical latitudinal range.
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13

Stawski, Clare, Taylor Hume, Gerhard Körtner, Shannon E. Currie, Julia Nowack, and Fritz Geiser. "Post-fire recovery of torpor and activity patterns of a small mammal." Biology Letters 13, no. 5 (May 2017): 20170036. http://dx.doi.org/10.1098/rsbl.2017.0036.

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To cope with the post-fire challenges of decreased availability of food and shelter, brown antechinus ( Antechinus stuartii ), a small marsupial mammal, increase the use of energy-conserving torpor and reduce activity. However, it is not known how long it takes for animals to resume pre-fire torpor and activity patterns during the recovery of burnt habitat. Therefore, we tested the hypothesis that antechinus will adjust torpor use and activity after a fire depending on vegetation recovery. We simultaneously quantified torpor and activity patterns for female antechinus from three adjacent areas: (i) the area of a management burn 1 year post-fire, (ii) an area that was burned 2 years prior, and (iii) a control area. In comparison to shortly after the management burn, antechinus in all three groups displayed less frequent and less pronounced torpor while being more active. We provide the first evidence that only 1 year post-fire antechinus resume pre-fire torpor and activity patterns, probably in response to the return of herbaceous ground cover and foraging opportunities.
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14

Shimmin, G. A., M. Jones, D. A. Taggart, and P. D. Temple-Smith. "Sperm Transport and Storage in the Agile Antechinus (Antechinus agilis)1." Biology of Reproduction 60, no. 6 (June 1, 1999): 1353–59. http://dx.doi.org/10.1095/biolreprod60.6.1353.

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15

Geng, Yuepan, Chen Yang, Han Guo, Patrick B. Thomas, Penny L. Jeffery, Lisa K. Chopin, Andrew M. Baker, Ran Tian, and Inge Seim. "The mitochondrial genome of the black-tailed dusky antechinus (Antechinus arktos)." Mitochondrial DNA Part B 5, no. 4 (October 1, 2020): 3835–37. http://dx.doi.org/10.1080/23802359.2020.1840940.

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16

Watchorn, Darcy J., Kita R. Ashman, and Dan K. P. Harley. "Observations of arboreal behaviour in the mainland dusky antechinus (Antechinus mimetes)." Australian Mammalogy 42, no. 2 (2020): 226. http://dx.doi.org/10.1071/am19022.

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During camera-trapping surveys for arboreal mammals within Yellingbo Nature Conservation Reserve we recorded arboreal behaviour in the mainland dusky antechinus, which is typically regarded as a strictly terrestrial species. The species was detected visiting baits positioned ~3.5m high on trees on 29 occasions, providing additional evidence of arboreal behaviour in the species and further demonstrating the value of camera traps in providing novel insights into animal behaviour.
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17

Sale, M. G., and J. P. Y. Arnould. "Inflated population density of island antechinus: a case of allochthonous marine inputs leading to increased food availability?" Australian Journal of Zoology 60, no. 5 (2012): 343. http://dx.doi.org/10.1071/zo12073.

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Resource availability and other processes that affect maintenance, growth and decline of animal populations are central to ecology and conservation. This study quantified features indicative of population fitness and the availability of food resources for island and mainland populations of an insectivorous marsupial, the swamp antechinus (Antechinus minimus). The aim of the study was to test the hypothesis that colonial seabirds increase productivity of island habitats, ultimately providing greater food resources. The study found that antechinus biomass density was 4–13 times greater on the island site compared with the mainland site and was associated with higher recapture rates, suggesting that more individuals were surviving on the island during spring and summer months. An index of antechinus food availability (abundance and biomass of invertebrates) was also higher on the island site. Island antechinus also accessed marine food subsidies, in the form of seabird carrion, during the energetically demanding post-weaning growth period in spring and summer. Furthermore, based on soil nutrient and stable isotope analyses, there was strong evidence of nutrient enrichment from marine sources in the island ecosystem, commonly linked to increased productivity. Therefore, greater antechinus biomass and abundance on offshore islands are likely to be, in part, due to greater survival caused by higher availability of food resources.
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18

Gray, Emma L., Andrew M. Baker, and Jennifer Firn. "Autecology of a new species of carnivorous marsupial, the endangered black-tailed dusky antechinus (Antechinus arktos), compared to a sympatric congener, the brown antechinus (Antechinus stuartii)." Mammal Research 62, no. 1 (June 24, 2016): 47–63. http://dx.doi.org/10.1007/s13364-016-0281-1.

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19

Kaewmongkol, Gunn, Sarawan Kaewmongkol, Helen Owen, Patricia A. Fleming, Peter J. Adams, Una Ryan, Peter J. Irwin, and Stanley G. Fenwick. "Candidatus Bartonella antechini: A novel Bartonella species detected in fleas and ticks from the yellow-footed antechinus (Antechinus flavipes), an Australian marsupial." Veterinary Microbiology 149, no. 3-4 (May 2011): 517–21. http://dx.doi.org/10.1016/j.vetmic.2010.12.003.

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20

Hume, Taylor, Fritz Geiser, Shannon E. Currie, Gerhard Körtner, and Clare Stawski. "Responding to the weather: energy budgeting by a small mammal in the wild." Current Zoology 66, no. 1 (May 17, 2019): 15–20. http://dx.doi.org/10.1093/cz/zoz023.

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Abstract Energy conservation is paramount for small mammals because of their small size, large surface area to volume ratio, and the resultant high heat loss to the environment. To survive on limited food resources and to fuel their expensive metabolism during activity, many small mammals employ daily torpor to reduce energy expenditure during the rest phase. We hypothesized that a small terrestrial semelparous marsupial, the brown antechinus Antechinus stuartii, would maximize activity when foraging conditions were favorable to gain fat reserves before their intense breeding period, but would increase torpor use when conditions were poor to conserve these fat reserves. Female antechinus were trapped and implanted with small temperature-sensitive radio transmitters to record body temperature and to quantify torpor expression and activity patterns in the wild. Most antechinus used torpor at least once per day over the entire study period. Total daily torpor use increased and mean daily body temperature decreased significantly with a reduction in minimum ambient temperature. Interestingly, antechinus employed less torpor on days with more rain and decreasing barometric pressure. In contrast to torpor expression, activity was directly related to ambient temperature and inversely related to barometric pressure. Our results reveal that antechinus use a flexible combination of physiology and behavior that can be adjusted to manage their energy budget according to weather variables.
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21

van, der Ree R. "The occurrence of the yellow-footed antechinus Antechinus flavipes in remnant linear habitats in north-eastern Victoria." Australian Mammalogy 25, no. 1 (2003): 97. http://dx.doi.org/10.1071/am03097.

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THE yellow-footed Antechinus Antechinus flavipes is distributed from South Australia, through central Victoria, New South Wales and into Queensland as well as in south-western Australia (Van Dyck 1998). In south-eastern Australia, the conservation of A. flavipes is not assured because its range largely corresponds with the temperate woodlands that have undergone extensive clearing and degradation (Menkhorst 1995). Despite this, no studies on the effects of the loss and fragmentation of habitat on A. flavipes have been published in the scientific literature. In contrast, numerous ecological studies that investigate the consequences of anthropogenic disturbance have been undertaken on its congeners, the brown antechinus Antechinus stuartii and agile antechinus Antechinus agilis (e.g., Bennett 1987; Downes et al. 1997; Knight and Fox 2000). These studies indicate that the abundance of these species may be influenced by patch size (Bennett 1987; Dunstan and Fox 1996), distance to large forest blocks (Downes et al. 1997), habitat structure (Knight and Fox 2000) and degree of tolerance to modified habitats that surround the patch (Knight and Fox 2000). Can the response of A. stuartii and A. agilis be used to predict how the loss, fragmentation and degradation of habitat may affect A. flavipes? In this note, I provide preliminary information about a population of A. flavipes occupying linear fragments of woodland in an agricultural landscape in southeastern Australia.
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22

Beckman, J., and A. Lill. "morphometric variation associated with teat-number differences in Antechinus agilis and A. swainsonii ? Observations from the Otway Ranges, Victoria." Australian Mammalogy 29, no. 2 (2007): 177. http://dx.doi.org/10.1071/am07022.

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That there is intraspecific variation in teat-number in Antechinus agilis (agile antechinus) and A. swainsonii (dusky antechinus) has been known for a long time. Our aim was to determine whether other key morphometric traits differed among individuals with different numbers of teats. External body dimensions and pelage characteristics were measured on live individuals and compared. Within-species variation in some external body dimensions (tail, pes, and snout-vent length) coincided with teat-number differentiation in both antechinus species in the Otway Ranges, Victoria. Disparities in pelage colour and markings were apparent between A. agilis 6- and 10-teat phenotypes, but were not obvious among A. swainsonii teat phenotypes. Although small sample sizes obviated statistical analysis, we tentatively concluded that female A. agilis with 7, 8, or 9 teats in the Otway Ranges probably displayed morphometric and pelage characteristics intermediate between those of 6- and 10-teat individuals. A comparison of morphometric traits among 6-teat A. agilis from different geographic areas (Otways, Portland and Wilsons Promontory) also revealed some variation. This result was consistent with an expectation of clinal variation in external morphology among antechinus. Overall, this study indicates that localized disparities that are associated with teat-number, as well as clinal differences occurring over large geographic distances, contribute to intraspecific variation in external morphology in antechinus.
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23

Baker, Andrew, T. Mutton, E. Mason, and E. Gray. "A taxonomic assessment of the Australian Dusky Antechinus Complex: a new species, the Tasman Peninsula Dusky Antechinus (Antechinus vandycki sp. nov.) and an elevation to species of the Mainland Dusky Antechinus (Antechinus swainsonii mimetes (Thomas))." Memoirs of the Queensland Museum - Nature 59 (2015): 75–126. http://dx.doi.org/10.17082/j.2204-1478.59.2015.2014-10.

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24

Cooper, C. E., K. Vernes, and T. Cooper. "Fate of wild-caught Antechinus flavipes released after physiological experiments." Australian Mammalogy 31, no. 2 (2009): 143. http://dx.doi.org/10.1071/am09013.

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Animals may be released into the wild for introduction, translocation or rehabilitation programs. Often, released animals do not survive or reproduce as well as wild conspecifics. Another circumstance whereby animals may be released is the return to the wild of research subjects, and although these animals may be expected to fare better than those from introduction, translocation or rehabilitation programs, there is little information regarding their subsequent survival and reproduction. We examine here the survivorship and reproductive success of five (one male, four female) yellow-footed antechinus (Antechinus flavipes) released back into the wild after being held in captivity for approximately one week for physiological experiments. Three of the four female Antechinus were recaptured after release and, on inspection, all three had 10 pouch young. Survivorship after release of antechinus held in captivity (0.75) was not different from the population as a whole, which ranged between 0.5 and 1.0. We therefore present unequivocal evidence that Antechinus released into the wild after physiological experiments can successfully survive and reproduce. This information is important for wildlife managers and animal ethics committees when considering the fate of ex-research animals.
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25

Toftegaard, C. L., and A. J. Bradley. "Structure of specialized osmetrichia in the brown antechinus Antechinus stuartii (Marsupialia: Dasyuridae)." Journal of Zoology 248, no. 1 (May 1999): 27–30. http://dx.doi.org/10.1111/j.1469-7998.1999.tb01019.x.

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26

Shimmin, G. A., D. A. Taggart, and P. D. Temple-Smith. "Sperm competition and genetic diversity in the agile antechinus (Dasyuridae: Antechinus agilis)." Journal of Zoology 252, no. 3 (November 2000): 343–50. http://dx.doi.org/10.1111/j.1469-7998.2000.tb00629.x.

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27

Ward, S. J. "Possible Predation on Feathertail Gliders (Acrobates pygmaeus) by Agile Antechinus (Antechinus agilis)." Australian Mammalogy 21, no. 2 (1999): 173. http://dx.doi.org/10.1071/am00173.

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A series of observations of the remains of partially eaten feathertail gliders Acrobates pygmaeus and three other small forest vertebrates is reported. All were made while checking nest-boxes erected for an ecological study of A. pygmaeus, and each nest-box had a restricted entrance hole. The delicacy with which some of these animals had been killed and eaten and the small size of the entrances to the nest-boxes indicated a small- sized predator was responsible, and the most likely species in the area is the agile antechinus Antechinus agilis. These small dasyurid marsupials were also captured from the nest-boxes on several occasions. Based on faecal analysis, they had previously been considered almost totally insectivorous.
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28

Mutton, Thomas Y., Emma L. Gray, Susan J. Fuller, and Andrew M. Baker. "Life history, breeding biology and movement in a new species of carnivorous marsupial, the buff-footed antechinus (Antechinus mysticus) and a sympatric congener, the subtropical antechinus (Antechinus subtropicus)." Mammal Research 62, no. 4 (July 22, 2017): 373–85. http://dx.doi.org/10.1007/s13364-017-0325-1.

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29

Agar, NS, and IR Godwin. "Red-Cell Metabolism in the Brown Antechinus, the Bilby and the Rufous Hare-Wallaby." Australian Journal of Zoology 39, no. 6 (1991): 681. http://dx.doi.org/10.1071/zo9910681.

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Standard haematological parameters measured in the bilby (Macrotis lagotis) and the rufous hare-wallaby (Lagorchestes hirsutus) were not markedly different. Both species had very high levels of red blood cell 2,3-diphosphoglycerate, whilst the levels of adenosine triphosphate were within the range of most marsupials and mammals. The activities of red-cell enzymes were measured in these two species as well as in the brown antechinus (Antechinus stuartii). Some significant findings were (i) very high levels of hexokinase, glyceraldehyde phosphate dehydrogenase and lactate dehydrogenase in the antechinus and (ii) very high levels of glucose-6-phosphate dehydrogenase and glutathione peroxidase in the rufous hare-wallaby. The glycolytic rate, measured as the amount of lactate produced by the red cells incubated with eight different substrates, was found to be generally higher in the antechinus than in the other two species. The maximum rate of glycolysis was observed with mannose whilst galactose was a poor substrate in all three species.
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Baker, Andrew, and Steve Van Dyck. "Taxonomy and redescription of the swamp Antechinus, Antechinus minimus (E. Geoffroy) (Marsupialia: Dasyuridae)." Memoirs of the Queensland Museum - Nature 59 (July 31, 2015): 127–70. http://dx.doi.org/10.17082/j.2204-1478.59.2015.2014-11.

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31

Davison, A. "A new subspecies of Dusky Antechinus, Antechinus swainsonii (Marsupialia: Dasyuridae) from western Victoria." Australian Mammalogy 14, no. 2 (1991): 103. http://dx.doi.org/10.1071/am91010.

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Antechinus swainsonii insulanus subsp. nov. is described from specimens collected in the Grampians National Park in western Victoria. This subspecies, specimens of which were previously referred to as A. swainsonii mimetes, differs most notably from A. s. swainsonii and A. s. mimetes by its widely flared zygomatic arches, by its broader rostrum, by lacking an entoconid on the second lower molar and by having a sharply raised hypocristid on the fourth lower molar. Antechinus s. insulanus further differs significantly from other southern specimens of A. swainsonii in ten out of fifteen cranial and dental measurements used.
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Agar, N. S., and B. M. McAllan. "Red cell metabolism in a small dasyurid marsupial, the brown antechinus (Antechinus stuartii)." Comparative Haematology International 5, no. 3 (1995): 201–5. http://dx.doi.org/10.1007/bf00368045.

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33

Green, K., and H. Crowley. "Energetics and Behavior of Active Subnivean Insectivores Antechinus-Swainsonii and Antechinus-Stuartii (Marsupialia, Dasyuridae) in the Snowy Mountains." Wildlife Research 16, no. 5 (1989): 509. http://dx.doi.org/10.1071/wr9890509.

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Antechinus spp. respond to a snow-covered environment by increasing their metabolic rate and by occupying an insulated nest while not active. However, the two species occurring in the Snowy Mountains have different behavioural adaptations: Antechinus swainsonii is diurnal (allowing the benefits of basking in the sun), whereas A. stuartii is nocturnal and makes frequent visits to a communal nest. Antechinus stuartii is able to survive the winter with a lower ratio of field metabolic rate to basal metabolic rate, indicating that it is energetically less stressed and better adapted to existence in the cold per se than is A. swainsonii. However, A. swainsonii appears to forgo the energetic benefits of communal nesting in favour of the lesser competition for food afforded by solitary nesting.
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Righetti, Joanne, Barry J. Fox, and David B. Croft. "Behavioural mechanisms of competition in small dasyurid marsupials." Australian Journal of Zoology 48, no. 5 (2000): 561. http://dx.doi.org/10.1071/zo00023.

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The competitive behaviour of three species of small dasyurid marsupial, Antechinus swainsonii, Antechinus stuartii and Sminthopsis murina, was assessed in specially designed enclosures and smaller encounter cages, by videotaping the activity of pairs of animals, both as conspecifics and members of different species (except for A. swainsoni versus S. murina). Spatio-temporal analyses revealed differences in activity patterns and interactions within and between the species. Interference competition occurred in all intraspecific and interspecific comparisons tested. Encounter competition was judged to be the mechanism operating as all animals entered into interactions with other individuals. Encounters were particularly prevalent within Antechinus, indicating that they were more social than the relatively solitary Sminthopsis. Avoidance behaviour occurred between the two Antechinus species and this may enable them to coexist, so that this mechanism may be considered to be avoidance competition. The smaller competitor, S. murina, showed avoidance of the larger A. stuartii. Intraspecific competition was judged to be stronger than interspecific competition, but the latter could have more severe consequences, with the death of the smaller species occurring in some situations. This highlighted the asymmetric nature of competition, with body size determining the outcome of interactions between species.
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BAKER, ANDREW M., and STEVE VAN DYCK. "Taxonomy and redescription of the Atherton Antechinus, Antechinus godmani (Thomas) (Marsupialia: Dasyuridae)." Zootaxa 3670, no. 4 (June 14, 2013): 401. http://dx.doi.org/10.11646/zootaxa.3670.4.1.

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36

Parrott, Marissa L., Simon J. Ward, and Peter D. Temple-Smith. "Olfactory cues, genetic relatedness and female mate choice in the agile antechinus (Antechinus agilis)." Behavioral Ecology and Sociobiology 61, no. 7 (January 11, 2007): 1075–79. http://dx.doi.org/10.1007/s00265-006-0340-8.

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37

Yousef, A., and L. Selwood. "Embryonic development in culture of the marsupials Antechinus stuartii (Macleay) and Sminthopsis macroura (Spencer) during preimplantation stages." Reproduction, Fertility and Development 5, no. 4 (1993): 445. http://dx.doi.org/10.1071/rd9930445.

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Forty-nine blastocysts from 11 brown antechinus, Antechinus stuartii, and 96 blastocysts from 17 stripe-faced dunnarts, Sminthopsis macroura, were used to develop a culture system for embryos during preimplantation stages. Blastocysts of brown antechinus were collected on Days 6-9 for unilaminar stages, Days 16-21 for bilaminar stages and Days 20 and 21 for trilaminar stages. Blastocysts of stripe-faced dunnarts were collected on Day 6 for unilaminar stages, Days 6-8 for bilaminar stages and Day 8 for trilaminar stages. Culture media were Dulbecco's modified Eagle's medium (DMEM) with 4.5% glucose and Whittingham's T6 medium both of which were supplemented with 5, 10, 12.5 and 20% fetal calf serum (FCS). Antechinus serum (5%) and bovine serum albumin (0.1%, 0.2%) were also added to some media. Human amniotic fluid (HAF) and Monomed media were also tested. Blastocysts were cultured at 35 degrees C in 5% CO2 in air. DMEM + 10% FCS and HAF supported normal development for the longest periods and over the greatest range of stages. Developmental failure of blastocysts in vitro during expansion of the unilaminar blastocyst and formation of the bilaminar blastocyst suggests that these stages may be dependent on uterine signals. When cultured in DMEM + 10% FCS, the rate of development of bilaminar and trilaminar blastocysts into organogenesis was 4 h slower than in vivo in the stripe-faced dunnart and about 6 h slower than in vivo in the brown antechinus. Embryos of stripe-faced dunnarts were cultured to within 18 h of birth.
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Allison, Louise M., Lesley A. Gibson, and John G. Aberton. "Dietary strategy of the swamp antechinus (Antechinus minimus maritimus) (Marsupialia:Dasyuridae) in coastal and inland heathland habitats." Wildlife Research 33, no. 1 (2006): 67. http://dx.doi.org/10.1071/wr05038.

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In the coastal heathlands of southern Victoria, populations of a rare dasyurid, the swamp antechinus (Antechinus minimus maritimus), are restricted to small and disjunct patches of suitable habitat. Although characteristics of their preferred habitat in terms of vegetation structure and composition have been described, little is known of their diet preferences. Diet and food availability of the species was examined at two coastal and two inland sites, during winter and spring by way of faecal analyses and pitfall trapping. Only minor differences in diet were observed between the coastal and inland habitats and this was consistent across season. There was, however, variation in food availability between the two habitat types, with generally higher frequencies of invertebrates occurring within the inland than in the coastal habitat during spring. Even so, when diet was directly compared with food availability, the differences observed within individual categories within each season were similar in magnitude and direction for both habitats, suggesting that inland and coastal populations of the swamp antechinus have similar dietary strategies. Insect larvae, Diplopoda and Coleoptera appeared to be favoured dietary items being almost consistently over-represented in the diet compared to their availability, whereas Collembola, Amphipoda, Dermaptera and Formicidae were avoided as they were never consumed in proportion to their availability. Although dietary preferences were evident, there was no clear selection of any one particular prey item, and so the swamp antechinus was considered a dietary generalist. Also, as the species sampled from most of the range of prey items available to them, it fits the qualitative criterion of opportunism. The generalist strategy of the swamp antechinus is likely to be advantageous in an environment subject to disturbance.
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McAllan, B. M. "Dasyurid marsupials as models for the physiology of ageing in humans." Australian Journal of Zoology 54, no. 3 (2006): 159. http://dx.doi.org/10.1071/zo05073.

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Marsupials of the order Dasyuromorphia have features that make them useful as models for ageing processes in humans. First, they are long-lived for their size, with most small species living for at least 1 year, often several years, contrasting with the mouse, a conventional model for ageing studies, where most populations turn over within 4–6 months. Longevity in some dasyurids allows biological comparisons with other long-lived mammals. Second, the predictable reproduction and life histories of the genera Antechinus and Sminthopsis allow analysis of the role of sex hormones in physiological changes as ageing progresses. For Antechinus, this includes the interaction between testosterone and cortisol in initiating pathologies in males but not females. Many ageing processes are expressed differently between male and female humans, and have a stress component. The neuropathological changes that occur in Antechinus can be used as a model for the dementias of ageing, including Alzheimer’s disease. The age-related neuropathologies in Antechinus indicate that hormonal influences may be important. Finally, in Sminthopsis, the interaction between sex hormones, reproduction and the fattening season offer insights into the interaction between longevity and reduced energy intake, including obesity. Thus these mammals offer useful models for many of the possible influences for healthy ageing in humans.
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Parrott, Marissa L., Simon J. Ward, and Peter D. Temple-Smith. "Genetic similarity, not male size, influences female mate choice in the agile antechinus (Antechinus agilis)." Australian Journal of Zoology 54, no. 5 (2006): 319. http://dx.doi.org/10.1071/zo06030.

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Our research investigates the effects of genetic relatedness between mates and male size on female mate choice in the agile antechinus (Antechinus agilis). Females were provided with a simultaneous choice between one large and one small male, with a minimum 5 g (~20% of male weight) difference between males, in specially designed mate-choice enclosures. Genetic relatedness between males and females was determined using highly polymorphic, species-specific, microsatellite markers. Male size did not influence mate choice, with approximately equal numbers of large and small males chosen. Females chose males that were more genetically dissimilar to themselves significantly more times and showed significantly more sexual and non-exploratory behaviours near the genetically dissimilar males. The results show that, when free female mate choice is possible, female agile antechinus choose males on the basis of genetic relatedness, rather than male size.
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41

Sale, Michael G., Barbara A. Wilson, and John P. Y. Arnould. "Factors influencing population dynamics in island and mainland populations of the swamp antechinus (Antechinus minimus)." Australian Journal of Zoology 56, no. 3 (2008): 187. http://dx.doi.org/10.1071/zo08076.

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Simultaneously analysing demographic processes of small mammals living in different ecological contexts may help to understand mechanisms that influence the growth and decline of these populations. The size and demography of swamp antechinus (Antechinus minimus) populations located in a coastal mainland habitat and on a small offshore island in south-eastern Australia were investigated. Large demographic differences occurred between the two ecosystems, with the island population density often 100 times greater than that on the mainland. The swamp antechinus in the mainland habitat was influenced by extrinsic climatic forces, with juvenile recruitment, individual body mass and overall population size being affected by rainfall, a factor likely to influence food availability for the species. However, the island population did not appear to be affected by drought to the same degree where allochthonous marine nutrient inputs may have offset any drought-induced reduction in primary production. Significantly greater juvenile recruitment in the island habitats combined with restricted emigration and potentially reduced predation and interspecific competition are likely to be responsible for the high population densities on the island. Although island populations appear robust, future conservation efforts should focus on mainland populations given the genetic deficiencies in the island populations.
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42

Sale, M. G., S. J. Ward, and J. P. Y. Arnould. "Aspects of the ecology of swamp antechinus (Antechinus minimus maritimus) on a Bass Strait island." Wildlife Research 33, no. 3 (2006): 215. http://dx.doi.org/10.1071/wr05051.

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The swamp antechinus (Antechinus minimus maritimus) is a small insectivorous marsupial inhabiting closed heath and tussock grassland in south-eastern Australia. The species is considered ‘Near Threatened’ on the Australian mainland. Populations persist on coastal islands off Wilsons Promontory, but their current status is unknown. This study investigated the density, diet and reproduction of the swamp antechinus on Kanowna Island. Data were collected by live trapping in different vegetation types during four trips between August 2003 and January 2004. Higher animal densities (47–129 ha–1) were found for Kanowna Island than for previously studied mainland populations (1–18 ha–1). Examination of scats showed that this species eats a wide variety of prey types, with moth larvae a major dietary component, particularly during the breeding season. Births were estimated to have occurred between 28 June and 8 August, which is a longer period than reported for other populations of this species. Factors including reduced predation, restricted dispersal and increased food availability may be responsible for supporting this dense population.
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43

Kelly, Luke T., and Andrew F. Bennett. "Habitat requirements of the yellow-footed antechinus (Antechinus flavipes) in box - ironbark forest, Victoria, Australia." Wildlife Research 35, no. 2 (2008): 128. http://dx.doi.org/10.1071/wr07088.

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Understanding the habitat requirements of a species is critical for effective conservation-based management. In this study, we investigated the influence of forest structure on the distribution of the yellow-footed antechinus (Antechinus flavipes), a small dasyurid marsupial characteristic of dry forests on the inland side of the Great Dividing Range, Australia. Hair-sampling tubes were used to determine the occurrence of A. flavipes at 60 sites stratified across one of the largest remaining tracts of dry box–ironbark forest in south-eastern Australia. We considered the role of six potential explanatory variables: large trees, hollow-bearing trees, coppice hollows, logs, rock cover and litter. Logistic regression models were examined using an information-theoretic approach to determine the variables that best explained the presence or absence of the species. Hierarchical partitioning was employed to further explore relationships between occurrence of A. flavipes and explanatory variables. Forest structure accounted for a substantial proportion of the variation in occurrence of A. flavipes between sites. The strongest influence on the presence of A. flavipes was the cover of litter at survey sites. The density of hollow-bearing trees and rock cover were also positive influences. The conservation of A. flavipes will be enhanced by retention of habitat components that ensure a structurally complex environment in box–ironbark forests. This will also benefit the conservation of several threatened species in this dry forest ecosystem.
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44

Leung, Luke K. P. "Ecology of Australian tropical rainforest mammals. I. The Cape York antechinus, Antechinus leo (Dasyuridae : Marsupialia)." Wildlife Research 26, no. 3 (1999): 287. http://dx.doi.org/10.1071/wr96042.

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This is the first detailed ecological study of the Cape York antechinus, Antechinus leo, a small marsupial endemic to rainforest on the Cape York Peninsula, North Queensland, Australia. A total of 181 animals was captured 725 times at Iron Range during a capture–mark–recapture study from 1989 to 1991. A. leo is crepuscular–nocturnal, insectivorous, semi-arboreal and nests in hollows. Its life-history strategy is typical of the genus, including the synchrony of reproductive events and the post-mating death of all males. The estimated annual mating season is from mid-September to mid-October. Young were born around 1 November ( 12 days), and were carried in the pouch until early to mid December. Juveniles became trappable around mid February. Daughters stayed in their mother’s home range, while sons dispersed soon after they left the nest. Lactation, weaning and dispersal of young were timed to coincide with the wet season when the abundance of invertebrates increased, suggesting that populations are limited by food supply.
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Shimmin, G. A., D. A. Taggart, and P. D. Temple-Smith. "Variation in reproductive surpluses of the agile antechinus (Antechinus agilis) at different teat-number locations." Australian Journal of Zoology 48, no. 5 (2000): 511. http://dx.doi.org/10.1071/zo00017.

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The teat number of Antechinus agilis can vary from 6 to 10 depending on geographical location. Previous studies have found that there are more eggs ovulated and embryos produced than the number of teats available; however, the full range of teat numbers has not been examined. The aim of this study was to determine how pre- and post-embryonic loss varies between females from different populations characterised by differences in the number of teats. In the current study females from 6-, 8- and 10-teat populations across Victoria were trapped during gestation. Reproductive tracts of females were removed and the number of embryos and corpora lutea counted. Evaluation of the reproductive surpluses in these three populations indicate that females from the 8-teat population have the lowest level of reproductive surplus, from both oocyte to embryo and embryo to teat. Females from the 6-teat population had few losses from the oocyte to embryo stage; however, a maximum of only ~60% of these embryos could result in pouch young because of the reduced number of teats. A similar pattern of high embryo loss occurred in the 10-teat populations, despite an increased number of teats being available, because of the excessive numbers of embryos produced.
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46

Marchesan, Doreen, and Susan M. Carthew. "Autecology of the yellow-footed antechinus (Antechinus flavipes) in a fragmented landscape in southern Australia." Wildlife Research 31, no. 3 (2004): 273. http://dx.doi.org/10.1071/wr02038.

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Autecological data were collected on southern populations of the yellow-footed antechinus (Antechinus flavipes), during a wider study on the persistence of this species in a highly fragmented landscape of the southern Mt Lofty Ranges, South Australia. Data are presented to provide information on this species in the southern part of its range, to present a comparison with populations in other, more northern regions, and to provide an insight into the species' persistence in a fragmented system. Resulting recapture rates lend support to the presence of a male-biased dispersal strategy, which is the first published indication of such a strategy for the species. New information was also recorded for nest sites, with most sites occurring in tall Xanthorrhoea semiplana tateana, and only 33% found in tree cavities. Other results showed mostly comparable population densities and weights with other, more northern populations. However, differences were apparent with respect to juvenile dispersal behaviour and, to some extent, breeding times. Within-study populations also showed variation with regard to weights, density and breeding times. Forest animals were lighter, were largely of lower population densities, and were generally later breeders than animals that inhabited patches and strips of remnant vegetation. Such differences in weight and density may have been due to favourable 'edge effects' in patches and strips, while variations in breeding times may be due to local climatic or habitat factors. The life-history strategies and tolerance of habitat edges shown by A.�flavipes (presently and historically) provide some explanation for the species' persistence in this fragmented system.
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Mason, Eugene D., Chris J. Burwell, and Andrew M. Baker. "Prey of the silver-headed antechinus (Antechinus argentus), a new species of Australian dasyurid marsupial." Australian Mammalogy 37, no. 2 (2015): 164. http://dx.doi.org/10.1071/am14036.

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The silver-headed antechinus (Antechinus argentus) is one of Australia’s most recently described mammals, and the single known population at Kroombit Tops in south-east Queensland is threatened. Nothing is known of the species’ ecology, so during 2014 we collected faecal pellets each month (March–September) from a population at the type locality to gather baseline data on diet composition. A total of 38 faecal pellets were collected from 12 individuals (eight females, four males) and microscopic analysis of pellets identified seven invertebrate orders, with 70% combined mean composition of beetles (Coleoptera: 38%) and cockroaches (Blattodea: 32%). Other orders that featured as prey were ants, crickets/grasshoppers, butterflies/moths, spiders, and true bugs. Given that faecal pellets could only be collected from a single habitat type (Eucalyptus montivaga high-altitude open forest) and location, this is best described as a generalist insectivorous diet that is characteristic of other previously studied congeners.
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48

Cunningham, R. B., D. B. Lindenmayer, C. MacGregor, S. Barry, and A. Welsh. "Effects of trap position, trap history, microhabitat and season on capture probabilities of small mammals in a wet eucalypt forest." Wildlife Research 32, no. 8 (2005): 657. http://dx.doi.org/10.1071/wr04069.

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In this study, we use data drawn from a series of trapping events on four 0.5-ha trapping grids surveyed in the wet eucalypt forests of central Victoria, south-eastern Australia, to identify relationships between capture probabilities and several factors of interest for three species of small mammals that are common throughout the forests of this region: the agile antechinus (Antechinus agilis), the dusky antechinus (Antechinus swainsonii) and the bush rat (Rattus fuscipes). The design of our study – four regular trapping grids – generated spatio-temporal data with binary responses and many covariates. We used powerful and relatively new statistical methodology to deal with the spatio-temporal dependence patterns in the data – analytical problems that are common in trapping data such as these modelled here. Although A. agilis, A. swainsonii and R. fuscipes are among the best studied mammals in Australia, our data analysis produced new perspectives on their probability of being captured. In particular, we quantified how capture probability is affected by trap position within a trapping grid, day of capture in a sequence of trapping days, history of trap occupancy over time by different species and sexes of those species, time of the year or season, and microhabitat attributes. Our insights are discussed in terms of their consequences for trapping protocols that might be applied in the field.
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Woolley, PA. "Observations On The Reproductive Biology Of Myoictis Albopunctatus And Dasyurus Spartacus, Dasyurid Wallacei, Neophascogale Lorentzi, Dasyurus Marsupials Endemic To New Guinea." Australian Mammalogy 23, no. 1 (2001): 63. http://dx.doi.org/10.1071/am01063.

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FIELD and laboratory observations on the reproductive biology of seven species of dasyurid marsupials endemic to New Guinea (viz. ?Antechinus? habbema, ?Antechinus? melanurus, ?Antechinus? naso, Murexia longicaudata, Murexia rothschildi, Myoictis melas and Phascolosorex dorsalis) have been recorded by Woolley (in press). Here, less detailed observations on another four, previously unstudied, species (Myoictis wallacei, Neophascogale lorentzi, Dasyurus albopunctatus and Dasyurus spartacus) are presented to provide information on some aspects of reproduction in each species. Only a small number of individuals of each species were trapped, or collected by other means, and maintained in captivity (Table 1). The methods used for trapping and maintenance can be found in Woolley (1993), and for the observations made on the animals, Woolley (in press). Captive breeding could not be attempted because only one sex of each species was maintained. The limited reproductive data obtained from individuals at the time of capture, and from captive animals, is summarised for males in Table 2 and Fig. 1, and for females in Table 3.
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Monamy, V. "An observation of free-living Dusky Antechinuses, Antechinus swainsonii (Marsupialia: Dasyuridae) during the breeding season." Australian Mammalogy 14, no. 1 (1991): 23. http://dx.doi.org/10.1071/am91003.

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