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== Taxonomy ==
== Taxonomy ==
[[File:Adult Dusky Hopping Mouse (Notomys fuscus).jpg|left|thumb|Adult dusky hopping mouse (''Notomys fuscus''). Photo: Katherine Moseby.]]
[[File:Adult Dusky Hopping Mouse (Notomys fuscus).jpg|left|thumb|Adult dusky hopping mouse (''Notomys fuscus''). Photo: Katherine Moseby.]]
The dusky hopping mouse, or Wilkinti,<ref name=":0" /><ref name=":1">{{Cite book|last=South Australian Arid Lands Natural Resources Management Board|title=Biodiversity Studies. Wikinti (Dusky Hopping Mouse) and Ooarri (Fawn Hopping Mouse) Student Fact Sheet|publisher=South Australian Arid Lands Natural Resources Management Board.|year=16 June 2021|location=South Australia|pages=1-2}}</ref> is a [[mammal]] in the order [[Rodent|Rodentia]], and suborder [[Sciurognathi]]. The species is in the family [[Muridae]] and the subfamily [[Murinae]] (includes all Australian native rats and mice). The dusky hopping mouse belongs to the genus ''[[Hopping mouse|Notomys]]'', a group of desert-dwelling rodents.<ref name=":2">{{Cite book|last=Breed, B. and Ford, F.|title=Native Mice and Rats|publisher=CSIRO Publishing|year=2007|location=Collingwood, Victoria|pages=3-5}}</ref>
The dusky hopping mouse, or Wilkinti,<ref name=":0" /><ref name=":1">{{Cite book|last=South Australian Arid Lands Natural Resources Management Board|title=Biodiversity Studies. Wikinti (Dusky Hopping Mouse) and Ooarri (Fawn Hopping Mouse) Student Fact Sheet|publisher=South Australian Arid Lands Natural Resources Management Board.|date=16 June 2021|location=South Australia|pages=1–2}}</ref> is a [[mammal]] in the order [[Rodent|Rodentia]], and suborder [[Sciurognathi]]. The species is in the family [[Muridae]] and the subfamily [[Murinae]] (includes all Australian native rats and mice). The dusky hopping mouse belongs to the genus ''[[Hopping mouse|Notomys]]'', a group of desert-dwelling rodents.<ref name=":2">{{Cite book|last=Breed, B. and Ford, F.|title=Native Mice and Rats|publisher=CSIRO Publishing|year=2007|location=Collingwood, Victoria|pages=3–5}}</ref>


The species was originally described as ''Ascopharynx fuscus'' (Wood Jones 1925) from a specimen collected in [[South Australia]]. Subsequent collections were described as ''Notomys fuscus eyreius'' in 1960.<ref>{{Cite book|last=Jackson, S. and Groves, C.|title=Taxonomy of Australian Mammals|publisher=CSIRO Publishing|year=2015|location=Clayton South, Victoria|pages=199-200}}</ref> Hopping mice collected in [[Queensland]] between 1957 to 1959 were described as a new species, ''Notomys filmeri,'' however, later [[Taxonomic rank|taxonomic]] investigation revealed these were ''Notomys fuscus.''<ref name=":4">{{Cite journal|last=Dickman, C R., and Robin, L.|date=2014|title=Putting science in its place: the role of Sandringham Station in fostering arid zone science in Australia|journal=Historical Records of Australian Science|volume=25(2)|pages=186-201}}</ref>
The species was originally described as ''Ascopharynx fuscus'' (Wood Jones 1925) from a specimen collected in [[South Australia]]. Subsequent collections were described as ''Notomys fuscus eyreius'' in 1960.<ref>{{Cite book|last=Jackson, S. and Groves, C.|title=Taxonomy of Australian Mammals|publisher=CSIRO Publishing|year=2015|location=Clayton South, Victoria|pages=199–200}}</ref> Hopping mice collected in [[Queensland]] between 1957 to 1959 were described as a new species, ''Notomys filmeri,'' however, later [[Taxonomic rank|taxonomic]] investigation revealed these were ''Notomys fuscus.''<ref name=":4">{{Cite journal|last=Dickman, C R., and Robin, L.|date=2014|title=Putting science in its place: the role of Sandringham Station in fostering arid zone science in Australia|journal=Historical Records of Australian Science|volume=25|issue=2|pages=186–201|doi=10.1071/HR14014}}</ref>




== Description ==
== Description ==
[[File:Dusky Hopping Mouse (Notomys fuscus).jpg|thumb|Specimen of dusky hopping mouse (''Notomys fuscus''), showing throat pouch. Image: Queensland Museum.|left]]
[[File:Dusky Hopping Mouse (Notomys fuscus).jpg|thumb|Specimen of dusky hopping mouse (''Notomys fuscus''), showing throat pouch. Image: Queensland Museum.|left]]
The dusky hopping mouse has pale orange-brown upper parts, occasionally with grey tinged streaks. The under parts are grey-white.<ref name=":6">{{Cite book|last=Menkhorst, P. and Knight, F.|title=A Field Guide to the Mammals of Australia, Third Edition|publisher=Oxford University Press|year=2011|location=South Melbourne, Victoria|pages=184-185}}</ref> It grows to 80-115 mm long,<ref name=":6" /> with an average weight of 35 g.<ref name=":2" /><ref name=":6" /> The tail is between 120-155 mm long,<ref name=":6" /> ending in a tuft of dark hairs.<ref name=":0" /><ref name=":7">{{Cite book|last=Watts, C. H. S., and Kemper, C. M.|title=Fauna of Australia. Volume 1B. Mammalia|publisher=CSIRO Publishing|year=1987|editor-last=D. W. Walton and G. R. Dyne|location=Victoria|chapter=Muridae}}</ref> They have a well-developed throat pouch, with an opening surrounded by a fleshy margin with inward pointing, coarse white hairs.<ref name=":6" /><ref name=":8">{{Cite journal|last=Watts|first=C. H. S.|date=1975|title=The neck and chest glands of the Australian hopping-mice, Notomys.|journal=Australian Journal of Zoology|volume=23(2)|pages=151-157}}</ref> Its ears are large and furless for dissipating heat, and they have prominent dark eyes,<ref name=":0" /><ref name=":9">{{Cite journal|last=Breed|first=B.|date=2014|title=Australia's other mammals: The mice and rats.|journal=Wildlife Australia|volume=51(2)|pages=10-14}}</ref> and strong [[Incisor|incisor teeth]].<ref name=":7" /><ref name=":9" /> It has short front legs, and long, elongated hind feet.<ref name=":0" /><ref name=":7" /> with only three pads on the sole.<ref name=":6" /> Male reproductive anatomy is distinctive.<ref name=":2" /> The [[glans]] is small and tapered towards the tip. The surface has large dorsally projecting spines, with slightly curved tips.<ref>{{Cite journal|last=Morrissey, B. L., and Breed, W. G.|date=1982|title=Variation in external morphology of the glans penis of Australian native rodents|journal=Australian Journal of Zoology|volume=30(4)|pages=495-502}}</ref> The [[Testicle|testes]] are extremely small compared to other native rodents.<ref name=":11">{{Cite journal|last=Breed|first=W. G.|date=1986|title=Comparative morphology and evolution of the male reproductive tract in the Australian hydromyine rodents (Muridae)|journal=Journal of Zoology|volume=209(4)|pages=607-629}}</ref><ref name=":12">{{Cite journal|last=Breed, W. G., Ding, X., Tuke, J., and Leigh, C. M.|date=2020|title=Morphological diversity of the spermatozoon and male reproductive tract in Australian Hopping mice, genus Notomys–is it determined by sexual selection?|journal=Journal of Zoology|volume=311(3)|pages=194-203}}</ref> Females have two pairs of inguinal teats.<ref name=":6" /><ref name=":7" />
The dusky hopping mouse has pale orange-brown upper parts, occasionally with grey tinged streaks. The under parts are grey-white.<ref name=":6">{{Cite book|last=Menkhorst, P. and Knight, F.|title=A Field Guide to the Mammals of Australia, Third Edition|publisher=Oxford University Press|year=2011|location=South Melbourne, Victoria|pages=184–185}}</ref> It grows to 80-115 mm long,<ref name=":6" /> with an average weight of 35 g.<ref name=":2" /><ref name=":6" /> The tail is between 120-155 mm long,<ref name=":6" /> ending in a tuft of dark hairs.<ref name=":0" /><ref name=":7">{{Cite book|last=Watts, C. H. S., and Kemper, C. M.|title=Fauna of Australia. Volume 1B. Mammalia|publisher=CSIRO Publishing|year=1987|editor-last=D. W. Walton and G. R. Dyne|location=Victoria|chapter=Muridae}}</ref> They have a well-developed throat pouch, with an opening surrounded by a fleshy margin with inward pointing, coarse white hairs.<ref name=":6" /><ref name=":8">{{Cite journal|last=Watts|first=C. H. S.|date=1975|title=The neck and chest glands of the Australian hopping-mice, Notomys.|journal=Australian Journal of Zoology|volume=23|issue=2|pages=151–157|doi=10.1071/ZO9750151}}</ref> Its ears are large and furless for dissipating heat, and they have prominent dark eyes,<ref name=":0" /><ref name=":9">{{Cite journal|last=Breed|first=B.|date=2014|title=Australia's other mammals: The mice and rats.|journal=Wildlife Australia|volume=51|issue=2|pages=10–14}}</ref> and strong [[Incisor|incisor teeth]].<ref name=":7" /><ref name=":9" /> It has short front legs, and long, elongated hind feet.<ref name=":0" /><ref name=":7" /> with only three pads on the sole.<ref name=":6" /> Male reproductive anatomy is distinctive.<ref name=":2" /> The [[glans]] is small and tapered towards the tip. The surface has large dorsally projecting spines, with slightly curved tips.<ref>{{Cite journal|last=Morrissey, B. L., and Breed, W. G.|date=1982|title=Variation in external morphology of the glans penis of Australian native rodents|journal=Australian Journal of Zoology|volume=30|issue=4|pages=495–502|doi=10.1071/ZO9820495}}</ref> The [[Testicle|testes]] are extremely small compared to other native rodents.<ref name=":11">{{Cite journal|last=Breed|first=W. G.|date=1986|title=Comparative morphology and evolution of the male reproductive tract in the Australian hydromyine rodents (Muridae)|journal=Journal of Zoology|volume=209|issue=4|pages=607–629|doi=10.1111/j.1469-7998.1986.tb03615.x}}</ref><ref name=":12">{{Cite journal|last=Breed, W. G., Ding, X., Tuke, J., and Leigh, C. M.|date=2020|title=Morphological diversity of the spermatozoon and male reproductive tract in Australian Hopping mice, genus Notomys–is it determined by sexual selection?|journal=Journal of Zoology|volume=311|issue=3|pages=194–203|doi=10.1111/jzo.12779|s2cid=216251471}}</ref> Females have two pairs of inguinal teats.<ref name=":6" /><ref name=":7" />




== Distribution ==
== Distribution ==
[[File:Sub-adult Dusky Hopping Mouse (Notomys fuscus)1.jpg|left|thumb|Sub-adult dusky hopping mouse (''Notomys fuscus''). Photo: Katherine Moseby.]]
[[File:Sub-adult Dusky Hopping Mouse (Notomys fuscus)1.jpg|left|thumb|Sub-adult dusky hopping mouse (''Notomys fuscus''). Photo: Katherine Moseby.]]
The species historically inhabited large areas of central [[Australia]], south-west [[Queensland]], and far west [[South Australia]],<ref name=":10">{{Cite journal|last=Moseby, K. E., Brandle, R., and Adams, M.|date=1999|title=Distribution, habitat and conservation status of the rare dusky hopping-mouse, Notomys fuscus (Rodentia: Muridae)|journal=Wildlife Research|volume=26(4)|pages=479-494}}</ref> and [[Western Australia]].<ref name=":13">{{Cite journal|last=Robinson, A. C., Kemper, C. M., Medlin, G. C. and Watts, C. H. S.|date=2000|title=The rodents of South Australia|journal=Wildlife Research|volume=27|pages=379-404}}</ref> Sub-fossil specimens were found in far-south [[South Australia]], near the [[Flinders Ranges]].<ref name=":10" /> Populations were recorded in the [[Northern Territory]], however have not been observed since 1939.<ref name=":15">{{Cite journal|last=Cole, J. R. and Woinarski, J. C. Z.|date=2000|title=Rodents of the arid Northern Territory: conservation status and distribution.|journal=Wildlife Research|volume=27(4)|pages=437-449}}</ref><ref name=":16">{{Cite web|last=Pavey|first=C.|date=2006|title=Threatened Species of the Northern Territory. Dusky Hopping-Mouse, Notomys fuscus.|url=https://nt.gov.au/__data/assets/pdf_file/0018/205506/dusky-hoppingmouse.pdf|url-status=live|access-date=16 June 2016|website=Department of Environment, Parks and Water Security}}</ref> It is highly likely to have occurred in western [[New South Wales]].<ref name=":14">{{Cite web|last=Adam|first=P.|date=2004|title=Dusky hopping-mouse (Notomys fuscus) – endangered species listing|url=https://www.environment.nsw.gov.au/topics/animals-and-plants/threatened-species/nsw-threatened-species-scientific-committee/determinations/final-determinations/2004-2007/dusky-hopping-mouse-notomys-fuscus-endangered-species-listing|url-status=live|access-date=16 June 2021|website=Threatened Species Scientific Committee}}</ref> Distribution has shown a marked decline of more than 90% since the arrival of Europeans,<ref name=":10" /> with populations now patchy and highly fragmented.<ref name=":0" /><ref name=":10" /> It is currently thought to be restricted to the Cobblers Sandhills and [[Strzelecki Desert]] in north-east [[South Australia]],<ref name=":10" /><ref name=":13" /> south-west [[Queensland]] and far north-west [[New South Wales]].<ref name=":6" /><ref name=":18">{{Cite web|last=Department of the Environment, Water, Heritage and the Arts|date=2008|title=Approved Conservation Advice for Notomys fuscus (Dusky Hopping-mouse).|url=http://www.environment.gov.au/biodiversity/threatened/species/pubs/125-conservation-advice.pdf|url-status=live|access-date=16 June 2021|website=Department of Agriculture, Water and the Environment}}</ref> The species was presumed to be extinct in [[New South Wales]], before being re-discovered in [[Sturt National Park]] in 2003.<ref name=":14" /><ref name=":19">{{Cite web|last=Office of Environment and Heritage|date=2017|title=Dusky Hopping-mouse – profile.|url=https://www.environment.nsw.gov.au/threatenedSpeciesApp/profile.aspx?id=10563|url-status=live|access-date=16 June 2021|website=Office of Environment and Heritage}}</ref> Since then, a number of sightings have been recorded near [[Broken Hill]], [[New South Wales]].<ref name=":19" /><ref name=":20">{{Cite journal|last=Val, J., Mazzer, T., and Shelly, D.|date=2012|title=A new record of the dusky hopping mouse (Notomys fuscus) in New South Wales.|journal=Australian Mammalogy|volume=34(2)|pages=257-259}}</ref>
The species historically inhabited large areas of central [[Australia]], south-west [[Queensland]], and far west [[South Australia]],<ref name=":10">{{Cite journal|last=Moseby, K. E., Brandle, R., and Adams, M.|date=1999|title=Distribution, habitat and conservation status of the rare dusky hopping-mouse, Notomys fuscus (Rodentia: Muridae)|journal=Wildlife Research|volume=26|issue=4|pages=479–494|doi=10.1071/WR97061}}</ref> and [[Western Australia]].<ref name=":13">{{Cite journal|last=Robinson, A. C., Kemper, C. M., Medlin, G. C. and Watts, C. H. S.|date=2000|title=The rodents of South Australia|journal=Wildlife Research|volume=27|issue=4|pages=379–404|doi=10.1071/WR97044}}</ref> Sub-fossil specimens were found in far-south [[South Australia]], near the [[Flinders Ranges]].<ref name=":10" /> Populations were recorded in the [[Northern Territory]], however have not been observed since 1939.<ref name=":15">{{Cite journal|last=Cole, J. R. and Woinarski, J. C. Z.|date=2000|title=Rodents of the arid Northern Territory: conservation status and distribution.|journal=Wildlife Research|volume=27|issue=4|pages=437–449|doi=10.1071/WR97053}}</ref><ref name=":16">{{Cite web|last=Pavey|first=C.|date=2006|title=Threatened Species of the Northern Territory. Dusky Hopping-Mouse, Notomys fuscus.|url=https://nt.gov.au/__data/assets/pdf_file/0018/205506/dusky-hoppingmouse.pdf|url-status=live|access-date=16 June 2016|website=Department of Environment, Parks and Water Security}}</ref> It is highly likely to have occurred in western [[New South Wales]].<ref name=":14">{{Cite web|last=Adam|first=P.|date=2004|title=Dusky hopping-mouse (Notomys fuscus) – endangered species listing|url=https://www.environment.nsw.gov.au/topics/animals-and-plants/threatened-species/nsw-threatened-species-scientific-committee/determinations/final-determinations/2004-2007/dusky-hopping-mouse-notomys-fuscus-endangered-species-listing|url-status=live|access-date=16 June 2021|website=Threatened Species Scientific Committee}}</ref> Distribution has shown a marked decline of more than 90% since the arrival of Europeans,<ref name=":10" /> with populations now patchy and highly fragmented.<ref name=":0" /><ref name=":10" /> It is currently thought to be restricted to the Cobblers Sandhills and [[Strzelecki Desert]] in north-east [[South Australia]],<ref name=":10" /><ref name=":13" /> south-west [[Queensland]] and far north-west [[New South Wales]].<ref name=":6" /><ref name=":18">{{Cite web|last=Department of the Environment, Water, Heritage and the Arts|date=2008|title=Approved Conservation Advice for Notomys fuscus (Dusky Hopping-mouse).|url=http://www.environment.gov.au/biodiversity/threatened/species/pubs/125-conservation-advice.pdf|url-status=live|access-date=16 June 2021|website=Department of Agriculture, Water and the Environment}}</ref> The species was presumed to be extinct in [[New South Wales]], before being re-discovered in [[Sturt National Park]] in 2003.<ref name=":14" /><ref name=":19">{{Cite web|last=Office of Environment and Heritage|date=2017|title=Dusky Hopping-mouse – profile.|url=https://www.environment.nsw.gov.au/threatenedSpeciesApp/profile.aspx?id=10563|url-status=live|access-date=16 June 2021|website=Office of Environment and Heritage}}</ref> Since then, a number of sightings have been recorded near [[Broken Hill]], [[New South Wales]].<ref name=":19" /><ref name=":20">{{Cite journal|last=Val, J., Mazzer, T., and Shelly, D.|date=2012|title=A new record of the dusky hopping mouse (Notomys fuscus) in New South Wales.|journal=Australian Mammalogy|volume=34|issue=2|pages=257–259|doi=10.1071/AM11031}}</ref>




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=== Behaviour ===
=== Behaviour ===
The dusky hopping mouse is a [[Sociality|social]] species,<ref name=":6" /> living in colonies of up to five individuals.<ref name=":19" /><ref name=":17" /><ref name=":0" /> They live in burrows consisting of vertical shafts with a series of entrances approximately 3 cm in diameter,<ref name=":6" /><ref name=":0" /> leading to a network of horizontal tunnels and chambers<ref name=":1" /><ref name=":2" /> extending up to 2m deep.<ref name=":17" /> ''Notomys'' species dig their burrows from below, resulting in an absence of loose sand surrounding the entrance holes.<ref name=":9" /> This species prefers to forage at night in sheltered microhabitats, rather than open areas, to avoid the risk of [[predation]].<ref name=":22">{{Cite journal|last=Morris, T., Gordon, C. E., & Letnic, M.|date=2015|title=Divergent foraging behaviour of a desert rodent, Notomys fuscus, in covered and open microhabitats revealed using giving up densities and video analysis.|journal=Australian Mammalogy|volume=37(1)|pages=46-50}}</ref> It is an [[Opportunism|opportunistic]],<ref name=":10" /> [[Omnivore|omnivorous]] feeder, however is considered a [[Seed predation|granivore]] (74% of the diet).<ref name=":21">{{Cite journal|last=Murray, B. R., Dickman, C. R., Watts, C. H. S., & Morton, S. R.|date=1999|title=The dietary ecology of Australian desert rodents.|journal=Wildlife Research|volume=26(4)|pages=421-437}}</ref> Green plant material, insects,<ref name=":21" /> and fruits are also eaten.<ref name=":10" /> It does not need to drink water.<ref name=":0" /><ref name=":19" /> The neck throat pouch is a [[Sebaceous gland|glandular]] area, used for marking territories. Females may scent-mark their young, ensuring they acquire a smell that grants them acceptance within the colony.<ref name=":8" />[[File:Dusky hopping mouse track.jpg|thumb|Dusky hopping mouse (''Notomys fuscus'') tracks in the sand. Photo: Mike Letnic.]]
The dusky hopping mouse is a [[Sociality|social]] species,<ref name=":6" /> living in colonies of up to five individuals.<ref name=":19" /><ref name=":17" /><ref name=":0" /> They live in burrows consisting of vertical shafts with a series of entrances approximately 3 cm in diameter,<ref name=":6" /><ref name=":0" /> leading to a network of horizontal tunnels and chambers<ref name=":1" /><ref name=":2" /> extending up to 2m deep.<ref name=":17" /> ''Notomys'' species dig their burrows from below, resulting in an absence of loose sand surrounding the entrance holes.<ref name=":9" /> This species prefers to forage at night in sheltered microhabitats, rather than open areas, to avoid the risk of [[predation]].<ref name=":22">{{Cite journal|last=Morris, T., Gordon, C. E., & Letnic, M.|date=2015|title=Divergent foraging behaviour of a desert rodent, Notomys fuscus, in covered and open microhabitats revealed using giving up densities and video analysis.|journal=Australian Mammalogy|volume=37|issue=1|pages=46–50|doi=10.1071/AM14030}}</ref> It is an [[Opportunism|opportunistic]],<ref name=":10" /> [[Omnivore|omnivorous]] feeder, however is considered a [[Seed predation|granivore]] (74% of the diet).<ref name=":21">{{Cite journal|last=Murray, B. R., Dickman, C. R., Watts, C. H. S., & Morton, S. R.|date=1999|title=The dietary ecology of Australian desert rodents.|journal=Wildlife Research|volume=26|issue=4|pages=421–437|doi=10.1071/WR97046}}</ref> Green plant material, insects,<ref name=":21" /> and fruits are also eaten.<ref name=":10" /> It does not need to drink water.<ref name=":0" /><ref name=":19" /> The neck throat pouch is a [[Sebaceous gland|glandular]] area, used for marking territories. Females may scent-mark their young, ensuring they acquire a smell that grants them acceptance within the colony.<ref name=":8" />[[File:Dusky hopping mouse track.jpg|thumb|Dusky hopping mouse (''Notomys fuscus'') tracks in the sand. Photo: Mike Letnic.]]
=== Life cycle and reproduction ===
=== Life cycle and reproduction ===
In the wild, lifespan has been recorded as being up to 13 months of age.<ref name=":17" /> In [[captivity]], males and females reach [[Sexual maturity|reproductive maturity]] at 70 days of age.<ref name=":23">{{Cite journal|last=Aslin, H. J. and Watts, C. H. S.|date=1980|title=Breeding of a captive colony of Notomys fuscus Wood Jones (Rodentia: Muridae).|journal=Australian Wildlife Research|volume=7|pages=379-383}}</ref> This species is likely [[Monogamy in animals|monogamous]], and females may display selectivity in choosing which males will sire offspring.<ref name=":9" /><ref name=":12" /> Breeding is non-seasonal, occurring year-round, in both wet and dry conditions.<ref name=":10" /><ref name=":23" /> Females are observed to be [[Estrous cycle|polyoestrous]], with a [[Pregnancy (mammals)|gestation period]] of 32 to 38 days, and a litter size of one to five offspring. An average of 42 days occurs between litters, and the maximum reproductive life for females is approximately 24 months, and males 36 months.<ref name=":23" /> Subpopulations may persist at low but stable numbers, however others exhibit “boom-and-bust” variation, with numbers increasing and decreasing rapidly in response to rainfall and resource availability.<ref name=":20" /><ref name=":17" /><ref name=":24">{{Cite journal|last=Moseby, K. E., Owens, H., Brandle, R., Bice, J. K., and Gates, J.|date=2006|title=Variation in population dynamics and movement patterns between two geographically isolated populations of the dusky hopping mouse (Notomys fuscus).|journal=Wildlife Research|volume=33(3)|pages=223-232}}</ref><ref>{{Cite journal|last=Waudby, H. P., and How, T.|date=2008|title=An additional record of the dusky hopping mouse Notomys fuscus in South Australia.|journal=Australian Mammalogy|volume=30(1)|pages=47-50}}</ref>
In the wild, lifespan has been recorded as being up to 13 months of age.<ref name=":17" /> In [[captivity]], males and females reach [[Sexual maturity|reproductive maturity]] at 70 days of age.<ref name=":23">{{Cite journal|last=Aslin, H. J. and Watts, C. H. S.|date=1980|title=Breeding of a captive colony of Notomys fuscus Wood Jones (Rodentia: Muridae).|journal=Australian Wildlife Research|volume=7|issue=3|pages=379–383|doi=10.1071/WR9800379}}</ref> This species is likely [[Monogamy in animals|monogamous]], and females may display selectivity in choosing which males will sire offspring.<ref name=":9" /><ref name=":12" /> Breeding is non-seasonal, occurring year-round, in both wet and dry conditions.<ref name=":10" /><ref name=":23" /> Females are observed to be [[Estrous cycle|polyoestrous]], with a [[Pregnancy (mammals)|gestation period]] of 32 to 38 days, and a litter size of one to five offspring. An average of 42 days occurs between litters, and the maximum reproductive life for females is approximately 24 months, and males 36 months.<ref name=":23" /> Subpopulations may persist at low but stable numbers, however others exhibit “boom-and-bust” variation, with numbers increasing and decreasing rapidly in response to rainfall and resource availability.<ref name=":20" /><ref name=":17" /><ref name=":24">{{Cite journal|last=Moseby, K. E., Owens, H., Brandle, R., Bice, J. K., and Gates, J.|date=2006|title=Variation in population dynamics and movement patterns between two geographically isolated populations of the dusky hopping mouse (Notomys fuscus).|journal=Wildlife Research|volume=33|issue=3|pages=223–232|doi=10.1071/WR05034}}</ref><ref>{{Cite journal|last=Waudby, H. P., and How, T.|date=2008|title=An additional record of the dusky hopping mouse Notomys fuscus in South Australia.|journal=Australian Mammalogy|volume=30|issue=1|pages=47–50|doi=10.1071/AM08006}}</ref>


=== Dispersal and movement ===
=== Dispersal and movement ===
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=== Predation ===
=== Predation ===
[[File:Feral cat (Felis catus).jpg|thumb|Feral cats (''Felis catus'') target small mammals as prey, such as native rodents. Photo: Megan Moppett.]]
[[File:Feral cat (Felis catus).jpg|thumb|Feral cats (''Felis catus'') target small mammals as prey, such as native rodents. Photo: Megan Moppett.]]
Introduced predators such as the [[Red fox|red fox (Vulpes vulpes)]]<ref name=":30">{{Cite journal|last=Letnic, M., Crowther, M. S., and Koch, F.|date=2009|title=Does a top‐predator provide an endangered rodent with refuge from an invasive mesopredator?.|journal=Animal Conservation|volume=12(4)|pages=302-312}}</ref> and [[Feral cat|feral cat (Felis catus)]] have detrimental impacts on dusky hopping mouse populations.<ref name=":22" /><ref name=":25">{{Cite journal|last=Gordon, C. E., and Letnic, M.|date=2016|title=Functional extinction of a desert rodent: implications for seed fate and vegetation dynamics.|journal=Ecography|volume=39(9)|pages=815-824}}</ref> Where [[Feral cat|cat]] and [[Red fox|fox]] abundance is high, dusky hopping mouse populations decline.<ref name=":30" /><ref name=":25" /><ref name=":31">{{Cite journal|last=Letnic, M., & Koch, F.|date=2010|title=Are dingoes a trophic regulator in arid Australia? A comparison of mammal communities on either side of the dingo fence.|journal=Austral Ecology|volume=35(2)|pages=167-175}}</ref> [[Feral cat|Cats]] target smaller prey such as [[Rodent|rodents]], which can make up a large proportion of their diet.<ref name=":32">{{Cite journal|last=Vernes, K., Jackson, S. M., Elliott, T. F., Tischler, M., and Harper, A.|date=2021|title=Diets of mammalian carnivores in the deserts of north-eastern South Australia.|journal=Journal of Arid Environments|volume=188|pages=104377}}</ref> Native species, such as the [[Barn owl|barn owl (''Tyto alba'')]], frequently consume this species,<ref name=":22" /><ref name=":26">{{Cite journal|last=McDowell, M. C., and Medlin, G. C.|date=2009|title=The effects of drought on prey selection of the barn owl (Tyto alba) in the Strzelecki Regional Reserve, north-eastern South Australia.|journal=Australian Mammalogy|volume=31(1)|pages=47-55}}</ref> as does the [[dingo]].<ref name=":22" /><ref name=":28">{{Cite journal|last=Allen, B. L., Fawcett, A., Anker, A., Engeman, R. M., Lisle, A., and Leung, L. K. P|date=2018|title=Environmental effects are stronger than human effects on mammalian predator-prey relationships in arid Australian ecosystems.|journal=Science of the Total Environment|volume=610|pages=451-461}}</ref> [[Dingo|Dingoes]] may de-populate localised populations of hopping mice within months,<ref name=":27">{{Cite journal|last=Allen, B. L., and Leung, L. K. P.|date=2012|title=Assessing predation risk to threatened fauna from their prevalence in predator scats: dingoes and rodents in arid Australia.|journal=PLoS One|volume=7(5)|pages=e36426}}</ref> particularly under [[drought]] conditions.<ref name=":28" /> [[Crest-tailed mulgara|Crest-tailed mulgara (''Dasycercus cristicauda'')]] have also been recorded eating this species.<ref name=":29">{{Cite journal|last=Contos, P. and Letnic, M.|date=2020|title=Diet of the crest-tailed mulgara (Dasycercus cristicauda) in the Strzelecki Desert.|journal=Australian Mammalogy|volume=42(2)|pages=211-215}}</ref>
Introduced predators such as the [[Red fox|red fox (Vulpes vulpes)]]<ref name=":30">{{Cite journal|last=Letnic, M., Crowther, M. S., and Koch, F.|date=2009|title=Does a top‐predator provide an endangered rodent with refuge from an invasive mesopredator?.|journal=Animal Conservation|volume=12|issue=4|pages=302–312|doi=10.1111/j.1469-1795.2009.00250.x}}</ref> and [[Feral cat|feral cat (Felis catus)]] have detrimental impacts on dusky hopping mouse populations.<ref name=":22" /><ref name=":25">{{Cite journal|last=Gordon, C. E., and Letnic, M.|date=2016|title=Functional extinction of a desert rodent: implications for seed fate and vegetation dynamics.|journal=Ecography|volume=39|issue=9|pages=815–824|doi=10.1111/ecog.01648}}</ref> Where [[Feral cat|cat]] and [[Red fox|fox]] abundance is high, dusky hopping mouse populations decline.<ref name=":30" /><ref name=":25" /><ref name=":31">{{Cite journal|last=Letnic, M., & Koch, F.|date=2010|title=Are dingoes a trophic regulator in arid Australia? A comparison of mammal communities on either side of the dingo fence.|journal=Austral Ecology|volume=35|issue=2|pages=167–175|doi=10.1111/j.1442-9993.2009.02022.x}}</ref> [[Feral cat|Cats]] target smaller prey such as [[Rodent|rodents]], which can make up a large proportion of their diet.<ref name=":32">{{Cite journal|last=Vernes, K., Jackson, S. M., Elliott, T. F., Tischler, M., and Harper, A.|date=2021|title=Diets of mammalian carnivores in the deserts of north-eastern South Australia.|journal=Journal of Arid Environments|volume=188|pages=104377|doi=10.1016/j.jaridenv.2020.104377|s2cid=228861284}}</ref> Native species, such as the [[Barn owl|barn owl (''Tyto alba'')]], frequently consume this species,<ref name=":22" /><ref name=":26">{{Cite journal|last=McDowell, M. C., and Medlin, G. C.|date=2009|title=The effects of drought on prey selection of the barn owl (Tyto alba) in the Strzelecki Regional Reserve, north-eastern South Australia.|journal=Australian Mammalogy|volume=31|issue=1|pages=47–55|doi=10.1071/AM08115}}</ref> as does the [[dingo]].<ref name=":22" /><ref name=":28">{{Cite journal|last=Allen, B. L., Fawcett, A., Anker, A., Engeman, R. M., Lisle, A., and Leung, L. K. P|date=2018|title=Environmental effects are stronger than human effects on mammalian predator-prey relationships in arid Australian ecosystems.|journal=Science of the Total Environment|volume=610|pages=451–461|doi=10.1016/j.scitotenv.2017.08.051|pmid=28818660|url=https://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=2980&context=icwdm_usdanwrc}}</ref> [[Dingo|Dingoes]] may de-populate localised populations of hopping mice within months,<ref name=":27">{{Cite journal|last=Allen, B. L., and Leung, L. K. P.|date=2012|title=Assessing predation risk to threatened fauna from their prevalence in predator scats: dingoes and rodents in arid Australia.|journal=PLOS ONE|volume=7|issue=5|pages=e36426|doi=10.1371/journal.pone.0036426|pmid=22563498|pmc=3341367|doi-access=free}}</ref> particularly under [[drought]] conditions.<ref name=":28" /> [[Crest-tailed mulgara|Crest-tailed mulgara (''Dasycercus cristicauda'')]] have also been recorded eating this species.<ref name=":29">{{Cite journal|last=Contos, P. and Letnic, M.|date=2020|title=Diet of the crest-tailed mulgara (Dasycercus cristicauda) in the Strzelecki Desert.|journal=Australian Mammalogy|volume=42|issue=2|pages=211–215|doi=10.1071/AM19003|s2cid=202861177}}</ref>
=== Habitat degradation ===
=== Habitat degradation ===
[[Livestock]], [[Kangaroo|kangaroos]] and [[European rabbit|rabbits]] overgraze vegetation required for shelter and food sources,<ref name=":19" /> leading to scalding, wind and [[sheet erosion]] and a shift from [[Perennial plant|perennial]], to less productive [[Ephemerality|ephemeral]] plant species.<ref name=":10" /><ref name=":24" /> [[Livestock]] also damage habitats by trampling.<ref name=":32" /><ref name=":33">{{Cite journal|last=Vernes, K., Elliott, T. F., & Jackson, S. M.|date=2021|title=150 years of mammal extinction and invasion at Koonchera Dune in the Lake Eyre Basin of South Australia.|journal=Biological Invasions|volume=23(2)|pages=593-610}}</ref> Reduced food availability limits hopping mice abundance, and the availability of suitable habitat limits their distribution.<ref name=":10" /><ref name=":24" /> However, higher annual rainfall and more [[Productivity (ecology)|productive]] ecosystems may buffer the effects of [[livestock]], by providing more dependable and abundant resources, allowing mice to proliferate.<ref name=":10" /><ref name=":28" />
[[Livestock]], [[Kangaroo|kangaroos]] and [[European rabbit|rabbits]] overgraze vegetation required for shelter and food sources,<ref name=":19" /> leading to scalding, wind and [[sheet erosion]] and a shift from [[Perennial plant|perennial]], to less productive [[Ephemerality|ephemeral]] plant species.<ref name=":10" /><ref name=":24" /> [[Livestock]] also damage habitats by trampling.<ref name=":32" /><ref name=":33">{{Cite journal|last=Vernes, K., Elliott, T. F., & Jackson, S. M.|date=2021|title=150 years of mammal extinction and invasion at Koonchera Dune in the Lake Eyre Basin of South Australia.|journal=Biological Invasions|volume=23|issue=2|pages=593–610|doi=10.1007/s10530-020-02387-2|s2cid=226344657}}</ref> Reduced food availability limits hopping mice abundance, and the availability of suitable habitat limits their distribution.<ref name=":10" /><ref name=":24" /> However, higher annual rainfall and more [[Productivity (ecology)|productive]] ecosystems may buffer the effects of [[livestock]], by providing more dependable and abundant resources, allowing mice to proliferate.<ref name=":10" /><ref name=":28" />
[[File:Sub-adult Dusky Hopping Mouse (Notomys fuscus).jpg|thumb|Sub-adult Dusky Hopping Mouse (''Notomys fuscus''). Photo: Katherine Moseby.]]
[[File:Sub-adult Dusky Hopping Mouse (Notomys fuscus).jpg|thumb|Sub-adult Dusky Hopping Mouse (''Notomys fuscus''). Photo: Katherine Moseby.]]
=== Competition ===
=== Competition ===
Competition for food and habitat occurs with the [[House mouse|house mouse (''Mus musculus'')]],<ref name=":17" /> which increase in abundance more rapidly under favourable conditions, depleting resources and outcompeting the native mice.<ref name=":10" /> The [[European rabbit|rabbit (''Oryctolagus cuniculus)'']] also competes with dusky hopping mice for food. Declines in [[European rabbit|rabbit]] abundance, and increased resources, following the release of the [[Rabbit hemorrhagic disease|Rabbit Haemorrhagic Disease Virus]] (RHDV) in [[Australia]] in 1995, saw the dusky hopping mouse increased their extent of occurrence by 241 to 365% over 14 years.<ref name=":34">{{Cite journal|last=Pedler, R. D., Brandle, R., Read, J. L., Southgate, R., Bird, P., and Moseby, K. E.|date=2016|title=Rabbit biocontrol and landscape‐scale recovery of threatened desert mammals.|journal=Conservation Biology|volume=30(4)|pages=774-782}}</ref>
Competition for food and habitat occurs with the [[House mouse|house mouse (''Mus musculus'')]],<ref name=":17" /> which increase in abundance more rapidly under favourable conditions, depleting resources and outcompeting the native mice.<ref name=":10" /> The [[European rabbit|rabbit (''Oryctolagus cuniculus)'']] also competes with dusky hopping mice for food. Declines in [[European rabbit|rabbit]] abundance, and increased resources, following the release of the [[Rabbit hemorrhagic disease|Rabbit Haemorrhagic Disease Virus]] (RHDV) in [[Australia]] in 1995, saw the dusky hopping mouse increased their extent of occurrence by 241 to 365% over 14 years.<ref name=":34">{{Cite journal|last=Pedler, R. D., Brandle, R., Read, J. L., Southgate, R., Bird, P., and Moseby, K. E.|date=2016|title=Rabbit biocontrol and landscape‐scale recovery of threatened desert mammals.|journal=Conservation Biology|volume=30|issue=4|pages=774–782|doi=10.1111/cobi.12684|pmid=26852773}}</ref>


=== Climate Change ===
=== Climate Change ===

Revision as of 16:11, 24 September 2021

The dusky hopping mouse (Notomys fuscus), is a small rodent endemic to Australia, inhabiting desert regions characterised by sand dunes. Populations have experienced significant declines since the arrival of Europeans, and continue to be subject to threatening processes. It is currently listed as a threatened species.[1]

Dusky hopping mouse
Dusky hopping mouse (Notomys fuscus). Photo: Mike Letnic.
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Muridae
Genus: Notomys
Species:
N. fuscus
Binomial name
Notomys fuscus
Jones, 1925
Current distribution of the dusky hopping mouse (Notomys fuscus), Image: IUCN Red List.

Taxonomy

Adult dusky hopping mouse (Notomys fuscus). Photo: Katherine Moseby.

The dusky hopping mouse, or Wilkinti,[1][3] is a mammal in the order Rodentia, and suborder Sciurognathi. The species is in the family Muridae and the subfamily Murinae (includes all Australian native rats and mice). The dusky hopping mouse belongs to the genus Notomys, a group of desert-dwelling rodents.[4]

The species was originally described as Ascopharynx fuscus (Wood Jones 1925) from a specimen collected in South Australia. Subsequent collections were described as Notomys fuscus eyreius in 1960.[5] Hopping mice collected in Queensland between 1957 to 1959 were described as a new species, Notomys filmeri, however, later taxonomic investigation revealed these were Notomys fuscus.[6]


Description

Specimen of dusky hopping mouse (Notomys fuscus), showing throat pouch. Image: Queensland Museum.

The dusky hopping mouse has pale orange-brown upper parts, occasionally with grey tinged streaks. The under parts are grey-white.[7] It grows to 80-115 mm long,[7] with an average weight of 35 g.[4][7] The tail is between 120-155 mm long,[7] ending in a tuft of dark hairs.[1][8] They have a well-developed throat pouch, with an opening surrounded by a fleshy margin with inward pointing, coarse white hairs.[7][9] Its ears are large and furless for dissipating heat, and they have prominent dark eyes,[1][10] and strong incisor teeth.[8][10] It has short front legs, and long, elongated hind feet.[1][8] with only three pads on the sole.[7] Male reproductive anatomy is distinctive.[4] The glans is small and tapered towards the tip. The surface has large dorsally projecting spines, with slightly curved tips.[11] The testes are extremely small compared to other native rodents.[12][13] Females have two pairs of inguinal teats.[7][8]


Distribution

Sub-adult dusky hopping mouse (Notomys fuscus). Photo: Katherine Moseby.

The species historically inhabited large areas of central Australia, south-west Queensland, and far west South Australia,[14] and Western Australia.[15] Sub-fossil specimens were found in far-south South Australia, near the Flinders Ranges.[14] Populations were recorded in the Northern Territory, however have not been observed since 1939.[16][17] It is highly likely to have occurred in western New South Wales.[18] Distribution has shown a marked decline of more than 90% since the arrival of Europeans,[14] with populations now patchy and highly fragmented.[1][14] It is currently thought to be restricted to the Cobblers Sandhills and Strzelecki Desert in north-east South Australia,[14][15] south-west Queensland and far north-west New South Wales.[7][19] The species was presumed to be extinct in New South Wales, before being re-discovered in Sturt National Park in 2003.[18][20] Since then, a number of sightings have been recorded near Broken Hill, New South Wales.[20][21]


Ecology

Habitat

The Strzelecki Desert, contains habitats preferred by the dusky hopping mouse (Notomys fuscus). Photo: Mike Letnic.

The preferred habitat of the dusky hopping mouse is the crests and slopes of stabilised desert sand dunes and ridges,[15][20] with sand required for digging burrows.[22] Dense populations tend to occur only within the vicinity of major drainage systems.[14] It does not appear to favour a particular vegetation type, occurring in dunes well-vegetated by canegrass (Zygochloa paradoxa), as well as degraded ecosystems dominated by ephemeral herbaceous species.[14] It has also been associated with perennial shrub species such as nitre bush (Nitraria billardierei) and Acacia species.[20]

Behaviour

The dusky hopping mouse is a social species,[7] living in colonies of up to five individuals.[20][22][1] They live in burrows consisting of vertical shafts with a series of entrances approximately 3 cm in diameter,[7][1] leading to a network of horizontal tunnels and chambers[3][4] extending up to 2m deep.[22] Notomys species dig their burrows from below, resulting in an absence of loose sand surrounding the entrance holes.[10] This species prefers to forage at night in sheltered microhabitats, rather than open areas, to avoid the risk of predation.[23] It is an opportunistic,[14] omnivorous feeder, however is considered a granivore (74% of the diet).[24] Green plant material, insects,[24] and fruits are also eaten.[14] It does not need to drink water.[1][20] The neck throat pouch is a glandular area, used for marking territories. Females may scent-mark their young, ensuring they acquire a smell that grants them acceptance within the colony.[9]

Dusky hopping mouse (Notomys fuscus) tracks in the sand. Photo: Mike Letnic.

Life cycle and reproduction

In the wild, lifespan has been recorded as being up to 13 months of age.[22] In captivity, males and females reach reproductive maturity at 70 days of age.[25] This species is likely monogamous, and females may display selectivity in choosing which males will sire offspring.[10][13] Breeding is non-seasonal, occurring year-round, in both wet and dry conditions.[14][25] Females are observed to be polyoestrous, with a gestation period of 32 to 38 days, and a litter size of one to five offspring. An average of 42 days occurs between litters, and the maximum reproductive life for females is approximately 24 months, and males 36 months.[25] Subpopulations may persist at low but stable numbers, however others exhibit “boom-and-bust” variation, with numbers increasing and decreasing rapidly in response to rainfall and resource availability.[21][22][26][27]

Dispersal and movement

When travelling slowly, hopping mice move on all fours, however they hop on the hind feet when travelling at speed.[4][8] Individuals are can disperse over large distances to colonise isolated habitats, crossing areas of hard unsuitable substrate.[22] Foraging distances are up to 400m per night, extending up to 1.5km over three nights.[22][26] Individuals inhabiting degraded habitats with limited vegetation and food resources show lower mobility, whereas those inhabiting highly diverse habitats with a wide variety of resources have wider ranging movement patterns.[26]  

Threats

Predation

Feral cats (Felis catus) target small mammals as prey, such as native rodents. Photo: Megan Moppett.

Introduced predators such as the red fox (Vulpes vulpes)[28] and feral cat (Felis catus) have detrimental impacts on dusky hopping mouse populations.[23][29] Where cat and fox abundance is high, dusky hopping mouse populations decline.[28][29][30] Cats target smaller prey such as rodents, which can make up a large proportion of their diet.[31] Native species, such as the barn owl (Tyto alba), frequently consume this species,[23][32] as does the dingo.[23][33] Dingoes may de-populate localised populations of hopping mice within months,[34] particularly under drought conditions.[33] Crest-tailed mulgara (Dasycercus cristicauda) have also been recorded eating this species.[35]

Habitat degradation

Livestock, kangaroos and rabbits overgraze vegetation required for shelter and food sources,[20] leading to scalding, wind and sheet erosion and a shift from perennial, to less productive ephemeral plant species.[14][26] Livestock also damage habitats by trampling.[31][36] Reduced food availability limits hopping mice abundance, and the availability of suitable habitat limits their distribution.[14][26] However, higher annual rainfall and more productive ecosystems may buffer the effects of livestock, by providing more dependable and abundant resources, allowing mice to proliferate.[14][33]

Sub-adult Dusky Hopping Mouse (Notomys fuscus). Photo: Katherine Moseby.

Competition

Competition for food and habitat occurs with the house mouse (Mus musculus),[22] which increase in abundance more rapidly under favourable conditions, depleting resources and outcompeting the native mice.[14] The rabbit (Oryctolagus cuniculus) also competes with dusky hopping mice for food. Declines in rabbit abundance, and increased resources, following the release of the Rabbit Haemorrhagic Disease Virus (RHDV) in Australia in 1995, saw the dusky hopping mouse increased their extent of occurrence by 241 to 365% over 14 years.[37]

Climate Change

This species experiences natural population declines during dry periods, when food resources are limited, and increase strongly following rainfall events.[26][33] Decreases in rainfall, less frequent rainfall events and more frequent droughts under climate change may cause declines or extinctions.[19][22] Predation of hopping mice by dingoes intensifies under drought conditions, which may significantly impact populations.[33]

Conservation status

Dusky hopping mouse (Notomys fuscus) in the Strzelecki Desert. Photo: Sue Rodwell.


The total remaining population is estimated to be between 2,500 and 10,000 individuals.[1][14]

  • International Union for the Conservation of Nature (IUCN) Red List: Vulnerable[22]
  • Australia: Vulnerable (Environment Protection and Biodiversity Conservation Act 1999)[1][19]
  • New South Wales: Endangered (Biodiversity Conservation Act 2016 No 63)[38]
  • South Australia: Vulnerable (National Parks and Wildlife Act 1972)[39]
  • Queensland: Endangered (Nature Conservation Act 1992)[40][41]
  • Northern Territory: Endangered (Territory Parks and Wildlife Conservation Act 2000)[17][42]


References

  1. ^ a b c d e f g h i j k "Species Profile and Threats Database. Notomys fuscus - Dusky Hopping-mouse, Wilkinti". Department of Agriculture, Water and the Environment. 16 July 2000. Retrieved 16 June 2021.{{cite web}}: CS1 maint: url-status (link)
  2. ^ Woinarski, J. & Burbidge, A.A. (2016). "Notomys fuscus". IUCN Red List of Threatened Species. 2016: e.T14863A22401596. doi:10.2305/IUCN.UK.2016-2.RLTS.T14863A22401596.en.
  3. ^ a b South Australian Arid Lands Natural Resources Management Board (16 June 2021). Biodiversity Studies. Wikinti (Dusky Hopping Mouse) and Ooarri (Fawn Hopping Mouse) Student Fact Sheet. South Australia: South Australian Arid Lands Natural Resources Management Board. pp. 1–2.
  4. ^ a b c d e Breed, B. and Ford, F. (2007). Native Mice and Rats. Collingwood, Victoria: CSIRO Publishing. pp. 3–5.{{cite book}}: CS1 maint: multiple names: authors list (link)
  5. ^ Jackson, S. and Groves, C. (2015). Taxonomy of Australian Mammals. Clayton South, Victoria: CSIRO Publishing. pp. 199–200.{{cite book}}: CS1 maint: multiple names: authors list (link)
  6. ^ Dickman, C R., and Robin, L. (2014). "Putting science in its place: the role of Sandringham Station in fostering arid zone science in Australia". Historical Records of Australian Science. 25 (2): 186–201. doi:10.1071/HR14014.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  7. ^ a b c d e f g h i j Menkhorst, P. and Knight, F. (2011). A Field Guide to the Mammals of Australia, Third Edition. South Melbourne, Victoria: Oxford University Press. pp. 184–185.{{cite book}}: CS1 maint: multiple names: authors list (link)
  8. ^ a b c d e Watts, C. H. S., and Kemper, C. M. (1987). "Muridae". In D. W. Walton and G. R. Dyne (ed.). Fauna of Australia. Volume 1B. Mammalia. Victoria: CSIRO Publishing.{{cite book}}: CS1 maint: multiple names: authors list (link)
  9. ^ a b Watts, C. H. S. (1975). "The neck and chest glands of the Australian hopping-mice, Notomys". Australian Journal of Zoology. 23 (2): 151–157. doi:10.1071/ZO9750151.
  10. ^ a b c d Breed, B. (2014). "Australia's other mammals: The mice and rats". Wildlife Australia. 51 (2): 10–14.
  11. ^ Morrissey, B. L., and Breed, W. G. (1982). "Variation in external morphology of the glans penis of Australian native rodents". Australian Journal of Zoology. 30 (4): 495–502. doi:10.1071/ZO9820495.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  12. ^ Breed, W. G. (1986). "Comparative morphology and evolution of the male reproductive tract in the Australian hydromyine rodents (Muridae)". Journal of Zoology. 209 (4): 607–629. doi:10.1111/j.1469-7998.1986.tb03615.x.
  13. ^ a b Breed, W. G., Ding, X., Tuke, J., and Leigh, C. M. (2020). "Morphological diversity of the spermatozoon and male reproductive tract in Australian Hopping mice, genus Notomys–is it determined by sexual selection?". Journal of Zoology. 311 (3): 194–203. doi:10.1111/jzo.12779. S2CID 216251471.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  14. ^ a b c d e f g h i j k l m n o Moseby, K. E., Brandle, R., and Adams, M. (1999). "Distribution, habitat and conservation status of the rare dusky hopping-mouse, Notomys fuscus (Rodentia: Muridae)". Wildlife Research. 26 (4): 479–494. doi:10.1071/WR97061.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  15. ^ a b c Robinson, A. C., Kemper, C. M., Medlin, G. C. and Watts, C. H. S. (2000). "The rodents of South Australia". Wildlife Research. 27 (4): 379–404. doi:10.1071/WR97044.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  16. ^ Cole, J. R. and Woinarski, J. C. Z. (2000). "Rodents of the arid Northern Territory: conservation status and distribution". Wildlife Research. 27 (4): 437–449. doi:10.1071/WR97053.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  17. ^ a b Pavey, C. (2006). "Threatened Species of the Northern Territory. Dusky Hopping-Mouse, Notomys fuscus" (PDF). Department of Environment, Parks and Water Security. Retrieved 16 June 2016.{{cite web}}: CS1 maint: url-status (link)
  18. ^ a b Adam, P. (2004). "Dusky hopping-mouse (Notomys fuscus) – endangered species listing". Threatened Species Scientific Committee. Retrieved 16 June 2021.{{cite web}}: CS1 maint: url-status (link)
  19. ^ a b c Department of the Environment, Water, Heritage and the Arts (2008). "Approved Conservation Advice for Notomys fuscus (Dusky Hopping-mouse)" (PDF). Department of Agriculture, Water and the Environment. Retrieved 16 June 2021.{{cite web}}: CS1 maint: multiple names: authors list (link) CS1 maint: url-status (link)
  20. ^ a b c d e f g Office of Environment and Heritage (2017). "Dusky Hopping-mouse – profile". Office of Environment and Heritage. Retrieved 16 June 2021.{{cite web}}: CS1 maint: url-status (link)
  21. ^ a b Val, J., Mazzer, T., and Shelly, D. (2012). "A new record of the dusky hopping mouse (Notomys fuscus) in New South Wales". Australian Mammalogy. 34 (2): 257–259. doi:10.1071/AM11031.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  22. ^ a b c d e f g h i j Woinarski, J and Burbidge, A. A. (2016). "Notomys fuscus. The IUCN Red List of Threatened Species 2016: e.T14863A22401596". IUCN Red List of Threatened Species. 2016. doi:10.2305/IUCN.UK.2016-2.RLTS.T14863A22401596.en. Retrieved 16 June 2021.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  23. ^ a b c d Morris, T., Gordon, C. E., & Letnic, M. (2015). "Divergent foraging behaviour of a desert rodent, Notomys fuscus, in covered and open microhabitats revealed using giving up densities and video analysis". Australian Mammalogy. 37 (1): 46–50. doi:10.1071/AM14030.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  24. ^ a b Murray, B. R., Dickman, C. R., Watts, C. H. S., & Morton, S. R. (1999). "The dietary ecology of Australian desert rodents". Wildlife Research. 26 (4): 421–437. doi:10.1071/WR97046.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  25. ^ a b c Aslin, H. J. and Watts, C. H. S. (1980). "Breeding of a captive colony of Notomys fuscus Wood Jones (Rodentia: Muridae)". Australian Wildlife Research. 7 (3): 379–383. doi:10.1071/WR9800379.{{cite journal}}: CS1 maint: multiple names: authors list (link)
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