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15 Cards in this Set

  • Front
  • Back
~270 spp
200 in austrilasia, 70 in S america
Diverse (in body form and ecology)
Classif. by teeth and feet
Repro diff than eutheria
Types of Marsupials
Hugh Tyndale-Biscoe’s treatment:
* Predatory marsupials (Thylacinidae, Dasyuridae, Notoryctidae)
* Bandicoots (Peramelidae)
* Pollen eaters, sap suckers (honey & feather-tailed & pigmy possums and sugar gliders, Tarsipedidae, Acrobatidae, Burramyidae and Petauridae)
* Folivores(koala, greater glider & possums)
* Wombats
* Kangaroos (Potoroidae and Macropodidae)
Syndactylous feet (fused digets)
Macropods (big feet)
Family Macropodidae
* Hare Wallabies (Lagorchestesspp.)
5 species. Extinct or severely reduced.
* Nailtail Wallabies (Onychogaleaspp.)
3 species. 1 extinct
* Rock Wallabies (Petrogalespp.)
11 species. Severe range reductions, none extinct yet, some status uncertain
* Padymelons (Thylogalespp.)
3 species. Mostly common or abundant, 1 species extinct on mainland, 1 often abundant (pest, even)
* Typical wallabies, wallaroos and kangaroos (Macropusspp.)
14 species. 1 extinct. Rest varied, some very reduced, some very abundant.
Grey and Red Kangaroos are very abundant.
* Others: Tree kangaroos (2 species, threatened), Quokka (vulnerable), Swamp Wallaby (doing okay).
** Pastoral use
** rabbits reduce amy of grass and increase erosion
Grazers and Browsers
Bridled nailtail Wallaby
Onychogalea fraenata
Nail on their tail
Brushtailed Rock Wallaby
Petrogale penicillata
West of Brisbane
Reduced, some doing well
Yellow-footed Rock-Wallaby
Petrogale xanthopus
Huge feet
Very Agile
Red Kangaroo
Huge musckes
Competition with males
Can be taller than a human standing up
Parma Wallaby
Macropus parma
Matchie's Tree Kangaroo
Drndroladus matchiei
in PNG
Forestomach (2 parts of stomach)
Fermentation vat
Bacteria digests the food and these biproducts are nutrients for the K
Can find grass in their stomachs where there is no grass
Winter --> sun
Summer --> shade
Coat deflects heat
Lick thier paws to that it evaporates and divert cool blood into body
Bipedality and Energenics
Can move rapidly with stored energy in tail or legs from muscles
When moving slow- (move with tail) as they increase speed, their 02 requirements increase.
Fast- (hopping) doesnt increase 02 requirements. Length of hop increases, velocity Increases but 02 req dont increase
*can swim!
Young are born early and go into pouch.
Males- tested are anterior to penis, bifid penis
Females- Lateral vaginae, uteri, Fallopian tubes, ovaries, median vagina.
Embryonic diapause (arrested the development of blastocyst in useris (70-100 cells)) around 204 days
Short gestation ~34 days (then climbs into pouch)
Long extrauterine development
Pregnancy does not inhibit osetrus. BUT lactation does