Bibliografie tematiche / Australian marsupials

Letteratura scientifica selezionata sul tema "Australian marsupials"

Autore: Grafiati
Pubblicato: 4 giugno 2021
Ultima modifica: 21 febbraio 2023

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Articoli di riviste sul tema "Australian marsupials"

1

J. Foley, William. "Marsupial Nutrition". Pacific Conservation Biology 5, n. 3 (1999): 240. http://dx.doi.org/10.1071/pc99240a.

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Abstract (sommario):
In the early 1980s advances in marsupial biology could no longer be encapsulated in a single volume such as Hugh Tyndale-Biscoe's "Life of Marsupials" and Cambridge University Press commissioned a series of monographs covering a range of different topics in marsupial biology. As it was, only three of that series were realized and among them was the ptedecessor to this book "Digestive Physiology and Nutrition of Marsupials" published in 1982. "Marsupial Nutrition" is a considerably expanded and comprehensive review of studies of nutrition and digestive physiology of Australasian and South American marsupials. In Australia, many ecologists view the limited nutrient status of our soils and vegetation as a fundamental limit to animal populations. This book explains firstly how Australian marsupials have responded to those limitations and secondly asks whether these responses are common amongst marsupials living in New Guinea and South America.
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2

Kirsch, John A. W., Mark S. Springer e François-Joseph Lapointe. "DNA-hybridisation Studies of Marsupials and their Implications for Metatherian Classification". Australian Journal of Zoology 45, n. 3 (1997): 211. http://dx.doi.org/10.1071/zo96030.

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Abstract (sommario):
We review past DNA-hybridisation studies of marsupials and present a reanalysis of the data, utilising results from our and additional studies to formulate and rationalise a new classification of Marsupialia. In the reanalysis, 13 individual DNA-hybridisation matrices, many lacking some pairwise comparisons, were sutured in stages to provide the basis for generating a tree of 101 marsupials plus an outgroup eutherian; a fourteenth matrix provided data for a tree including eight additional eutherians and a monotreme. Validation was achieved by jackknifing on taxa for each matrix as well as on tables combining two or more matrices generated during assembly of the 102-taxon data set. The results are consistent with most conclusions from the individual studies and dramatise the unevenness of hierarchical levels in current classifications of marsupials. In particular, the affinities of the American marsupial Dromiciops gliroides with, and the distinctness of marsupial bandicoots from, Australasian metatherians are reaffirmed, while opossums are shown to be as internally divergent as are most members of the order Diprotodontia. Calibration of the 102-taxon tree and dating of the major dichotomies suggest that no extant marsupial lineage originated before the latest Cretaceous, and that all of them together with most South American and all Australasian fossils should be recognised as a monophyletic group contrasting with a largely Laurasian (if possibly paraphyletic) taxon. These inferences, together with the details of the phylogeny, mandate that the misleading ‘Australian’ v. ‘American’ distinction be abandoned, even as a geographic convenience.
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3

Burke, Catherine, Delaney Burnard, Adam Polkinghorne, Jonathan Webb e Wilhelmina Huston. "Cloacal and Ocular Microbiota of the Endangered Australian Northern Quoll". Microorganisms 6, n. 3 (12 luglio 2018): 68. http://dx.doi.org/10.3390/microorganisms6030068.

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Abstract (sommario):
The Australian northern quoll is an important predatory marsupial carnivore that is currently endangered due to inappropriate fire regimes, predation, and the spread of invasive cane toads. The microbiota of Australian marsupials has not been extensively studied, but is thought to play a role in their health. This study provides an initial characterization of the cloacal microbiota of the northern quoll, as well as other marsupials including possums and kangaroos which were opportunistically sampled. The northern quoll cloaca microbiota was dominated by Enterococcus and Lactobacillus and had a relatively high proportion of members of the Proteobacteria phylum, which has been observed in other carnivorous marsupials. The diversity and structure of the microbiota was not influenced by presence of Chlamydiales which are intracellular bacteria and potential pathogens. The microbiota of the other marsupials was quite varied, which may be related to their health status. Characterization of the northern quoll microbiota will help to better understand the biology of this endangered animal.
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4

PARAMESWARAN, N., R. M. O'HANDLEY, M. E. GRIGG, A. WAYNE e R. C. A. THOMPSON. "Vertical transmission of Toxoplasma gondii in Australian marsupials". Parasitology 136, n. 9 (24 giugno 2009): 939–44. http://dx.doi.org/10.1017/s0031182009006453.

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SUMMARYTo date, little is known about the dynamics of vertical transmission of Toxoplasma gondii in Australian marsupials. Studies in mice demonstrate that vertical transmission of T. gondii is common and that chronically infected mice can transmit T. gondii to successive generations. In this study, PCR and immunohistochemistry were used to detect T. gondii in chronically infected marsupial dams and their offspring. T. gondii was detected in the unfurred pouch young of 2 out of 10 chronically infected western grey kangaroos (Macropus fuliginosus) and in the unfurred pouch young of a brush-tailed bettong (Bettongia penicillata). Results of the study suggest that vertical transmission of T. gondii can occur in chronically infected Australian marsupials.
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5

Snipes, RL, H. Snipes e FN Carrick. "Morphometric data on the intestines of five Australian marsupials (Marsupialia)." Australian Mammalogy 25, n. 2 (2003): 193. http://dx.doi.org/10.1071/am03193.

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Abstract (sommario):
THE nutritional biology of marsupials has been a subject of numerous studies, culminating in valuable compilations covering a wide range of aspects (Osman Hill and Rewell 1954; Walton and Richardson 1989; Hume 1982, 1999; Kerle 2001). Despite this thorough coverage, there remains a scarcity of morphometric data on the intestines of monotremes and marsupials. In an attempt to approach this need, an effort was initiated to provide morphometric data on monotremes (Snipes et al. 2002) and marsupials (Snipes et al. 1993, 2003).
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6

Harman, AM. "The Optic Chiasm of Australian Marsupials". Australian Journal of Zoology 43, n. 5 (1995): 467. http://dx.doi.org/10.1071/zo9950467.

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Abstract (sommario):
The optic chiasm of mammals is the region of the nervous system in which optic axons have a choice of route, either they enter the optic tract on the same side of the brain or they cross the chiasm and enter the opposite optic tract. in eutherian (placental) mammals, axons approach the midline of the chiasm and then either continue across the chiasm or turn back to enter the tract on the same side of the brain. The midline of the chiasm provides guidance cues that repel uncrossed but not crossed axons. However, it has recently been shown that in a marsupial, the quokka wallaby, axons destined to stay on the same side of the brain remain in the lateral part of the optic nerve and chiasm and never approach the midline. The structure of the chiasm reflects this partitioning of axons with different routes by having a tripartite structure. The two lateral regions contain only uncrossed axons in rostral chiasmatic regions and the central region contains only crossed axons. Therefore, axons passing through the chiasm of this species must use guidance cues that differ from those of eutherian mammals. Here I show that the chiasms of species of both diprotodont and polyprotodont Australian marsupials have a similar tripartite structure and that uncrossed axons are confined to lateral regions. It seems likely, therefore, that the chiasm of marsupials has fundamental differences in structure and optic axon trajectory compared with that of eutherian mammals studied to date.
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7

Riley, J., DM Spratt e PJA Presidente. "Pentastomids (Arthropoda) Parasitic in Australian Reptiles and Mammals." Australian Journal of Zoology 33, n. 1 (1985): 39. http://dx.doi.org/10.1071/zo9850039.

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Abstract (sommario):
Records of pentastomid arthropods parasitic in Australian reptiles and mammals are reviewed, with particular reference to material collected recently. Specimens representative of six genera are described. Sebekia sp. from the estuarine crocodile, Crocodylusporosus, is the first record of the genus in Australia and probably represents a new species. A nymph with double hooks, from the dasyurid marsupial Satanellus hallucatus, is determined as Waddycephalus sp. This represents the first evidence of double hooks in nymphal forms of the genus and of the role of marsupials as intermediate hosts of Waddycephalus. Nymphs from the peramelid marsupial, Isoodon macrourus, and from S, hallucatus are determined as Armillifer australis Riley & Self, 1981; those from Perameles nasuta are identified as A. arborealis Riley & Self, 1981. These represent the first records of marsupials as intermediate hosts of Armillifer. Adults of the genus Elenia Heymons, 1932 are confirmed as parasites of varanid lizards. E. australis Heymons, 1932 is recognized and it is suggested that specimens described by Heymons (1939), allegedly from Varanus varius at Townsville, Qld, may represent a new species. The cosmopolitan porocephalid Linguatula serrata Frolich, 1789 is recorded from the nasopharynx of the dingo or wild dog and the validity of the indigenous species, L. dingophila Johnson, 1910 is discussed. The cephalobaenid Raillietiella amphiboluri Mahon, 1954 is reported from Amphibolurus barbatus.
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8

Beveridge, Ian. "Parasites of Australian marsupials". British Veterinary Journal 144, n. 3 (maggio 1988): 211–12. http://dx.doi.org/10.1016/0007-1935(88)90103-0.

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9

Arrese, Catherine A., Nathan S. Hart, Nicole Thomas, Lyn D. Beazley e Julia Shand. "Trichromacy in Australian Marsupials". Current Biology 12, n. 8 (aprile 2002): 657–60. http://dx.doi.org/10.1016/s0960-9822(02)00772-8.

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10

SPRATT, DAVID M. "Description of capillariid nematodes (Trichinelloidea: Capillariidae) parasitic in Australian marsupials and rodents". Zootaxa 1348, n. 1 (30 ottobre 2006): 1. http://dx.doi.org/10.11646/zootaxa.1348.1.1.

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Abstract (sommario):
Capillariid nematodes (Trichinelloidea: Capillariidae) parasitic in Australian dasyurid, peramelid and potoroid marsupials and murid rodents are described. Diagnosis of the genus Eucoleus and a key to species are given. Two species are redescribed: E. gastricus (Baylis) and E. rickardi (Beveridge and Barker), comb. nov. Nine species are described as new: E. breviductus sp. nov., E. buckenbourensis sp. nov., E. fluvidus sp. nov., E. longiductus sp. nov., E. parvulus sp. nov., E. perplexus sp. nov., E. plumosus sp. nov., E. posterus sp. nov. and E. pseudoplumosus sp. nov. Three additional species are recognized but not named. Species of Eucoleus occur in a diverse range of epithelial tissue habitats in Australian hosts throughout eastern Australia; one species is known from peramelids in Western Australia. Members of the genus have not been found in any other families of Australian marsupials. Three species are parasites of dasyurids, eight species are parasites of peramelids, two species occur in both dasyurid and peramelid hosts and two species are parasites of murid rodents. Morphologically, species of Eucoleus appear to be reasonably host specific at the family level. Molecular evidence indicates that sibling species of Eucoleus occur in distinct but closely related host species. Baruscapillaria conspecta sp. nov. is described from murid rodents and the potoroid marsupial rufous rat kangaroo, Aepyprymnus rufescens, primarily in north Queensland. Capillaria ornamentata sp. nov. is described from the distal nasal sinus behind the orbit of the eye of species of dasyurids of the genus Antechinus in southeastern Australia. Aonchotheca praeputialis (Obendorf, 1979) comb. nov. is redescribed and appears to occur exclusively in the native Rattus fuscipes. New host and geographic records, and tissue localities of the trichurid nematode, Anatrichosoma haycocki (Trichinelloidea: Trichuridae, Trichosomoidinae) are given.
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Più fonti

Tesi sul tema "Australian marsupials"

1

com, Nevi Parameswaran@gmail, e Nivethitha (Nevi) Parameswaran. "Toxoplasma gondii in Australian Marsupials". Murdoch University, 2008. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20100203.145857.

Testo completo
Abstract (sommario):
Diagnostic tools were developed and utilised to detect Toxoplasma gondii infection in a range of Australian marsupial species and identify epidemiological trends. An ELISA was developed to detect anti-T. gondii IgG in macropod marsupials. When compared with the commercially available MAT (modified agglutination test), the ELISA was in high agreement and yielded a ê coefficient of 0.96. Of 18 western grey kangaroos (Macropus fuliginosus) tested for the presence of T. gondii DNA by PCR, the 9 ELISA positive kangaroos tested PCR positive and the 9 ELISA negative kangaroos tested PCR negative indicating that the ELISA protocol was both highly specific and sensitive and correlated 100% with the more labour intensive PCR assay. A T. gondii seroprevalence study was undertaken on free ranging Australian marsupials. There was a T. gondii seroprevalence of 15.5% (95%CI: 10.7-20.3) in western grey kangaroos located in the Perth metropolitan area. The T. gondii seroprevalence in male western grey kangaroos was significantly less than their female counterparts (p=0.038), which may be related to behavioural differences causing differences in exposure to oocysts or recrudescence of T. gondii infection in pregnant females. Marsupial populations located in islands free from felids had a low overall T. gondii seroprevalence. A case control study determined that marsupials located in areas where felids may roam are 14.20 (95%CI: 1.94-103.66) times more likely to be T. gondii seropositive than marsupials located on felid-free islands. PCR, immunohistochemistry and serological techniques were used to detect T. gondii infection in marsupial dams and their offspring. T. gondii DNA was detected in the pouch young of chronically infected western grey kangaroos and a woylie (Bettongia penicillata). T. gondii DNA was also identified in the mammary gland of the woylie dam suggesting that infection of the woylie pouch young was from suckling milk from the mammary gland. Results of the study demonstrate that vertical transmission of T. gondii occurs in Australian marsupials and may be of importance in the maintenance of T. gondii infection in Australian marsupial populations. Animal tissue and meat from Australia, predominately from Australian marsupials, were screened for T. gondii DNA using PCR primers for the multi-copy, T. gondii specific B1 gene. Sequencing of the B1 gene revealed atypical genotypes in 7 out of 13 samples from Australia. These 7 isolates contained single nucleotide polymorphisms (SNPs) in the B1 gene that could not be matched with known sequences from strains I, II, III and X. Six unique genotypes were identified out of the 7 atypical isolates; two out of the 7 isolates had the same unique sequence at the B1 gene whereas the other 5 isolates each had different combinations of SNPs at the B1 gene. A majority of T. gondii isolates sampled from native Australian marsupials were of an atypical genotype. The discovery of atypical strains of T. gondii in Australia leads to further questions regarding the origin and transmission of these atypical strains. Additional studies linking atypical strains with their clinical manifestation are also warranted.
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2

Parameswaran, Nevi. "Toxoplasma gondii in Australian marsupials /". Murdoch University Digital Theses Program, 2008. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20100203.145857.

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3

Fuss, Janet Megan. "Retinal anatomy of Australian marsupials /". Title page, contents and summary only, 1986. http://web4.library.adelaide.edu.au/theses/09SM/09smf994.pdf.

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4

Parameswaran, Nivethitha (Nevi). "Toxoplasma gondii in Australian Marsupials". Thesis, Parameswaran, Nivethitha (Nevi) (2008) Toxoplasma gondii in Australian Marsupials. PhD thesis, Murdoch University, 2008. https://researchrepository.murdoch.edu.au/id/eprint/1680/.

Testo completo
Abstract (sommario):
Diagnostic tools were developed and utilised to detect Toxoplasma gondii infection in a range of Australian marsupial species and identify epidemiological trends. An ELISA was developed to detect anti-T. gondii IgG in macropod marsupials. When compared with the commercially available MAT (modified agglutination test), the ELISA was in high agreement and yielded a ê coefficient of 0.96. Of 18 western grey kangaroos (Macropus fuliginosus) tested for the presence of T. gondii DNA by PCR, the 9 ELISA positive kangaroos tested PCR positive and the 9 ELISA negative kangaroos tested PCR negative indicating that the ELISA protocol was both highly specific and sensitive and correlated 100% with the more labour intensive PCR assay. A T. gondii seroprevalence study was undertaken on free ranging Australian marsupials. There was a T. gondii seroprevalence of 15.5% (95%CI: 10.7-20.3) in western grey kangaroos located in the Perth metropolitan area. The T. gondii seroprevalence in male western grey kangaroos was significantly less than their female counterparts (p=0.038), which may be related to behavioural differences causing differences in exposure to oocysts or recrudescence of T. gondii infection in pregnant females. Marsupial populations located in islands free from felids had a low overall T. gondii seroprevalence. A case control study determined that marsupials located in areas where felids may roam are 14.20 (95%CI: 1.94-103.66) times more likely to be T. gondii seropositive than marsupials located on felid-free islands. PCR, immunohistochemistry and serological techniques were used to detect T. gondii infection in marsupial dams and their offspring. T. gondii DNA was detected in the pouch young of chronically infected western grey kangaroos and a woylie (Bettongia penicillata). T. gondii DNA was also identified in the mammary gland of the woylie dam suggesting that infection of the woylie pouch young was from suckling milk from the mammary gland. Results of the study demonstrate that vertical transmission of T. gondii occurs in Australian marsupials and may be of importance in the maintenance of T. gondii infection in Australian marsupial populations. Animal tissue and meat from Australia, predominately from Australian marsupials, were screened for T. gondii DNA using PCR primers for the multi-copy, T. gondii specific B1 gene. Sequencing of the B1 gene revealed atypical genotypes in 7 out of 13 samples from Australia. These 7 isolates contained single nucleotide polymorphisms (SNPs) in the B1 gene that could not be matched with known sequences from strains I, II, III and X. Six unique genotypes were identified out of the 7 atypical isolates; two out of the 7 isolates had the same unique sequence at the B1 gene whereas the other 5 isolates each had different combinations of SNPs at the B1 gene. A majority of T. gondii isolates sampled from native Australian marsupials were of an atypical genotype. The discovery of atypical strains of T. gondii in Australia leads to further questions regarding the origin and transmission of these atypical strains. Additional studies linking atypical strains with their clinical manifestation are also warranted.
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5

Parameswaran, Nivethitha (Nevi). "Toxoplasma gondii in Australian Marsupials". Parameswaran, Nivethitha (Nevi) (2008) Toxoplasma gondii in Australian Marsupials. PhD thesis, Murdoch University, 2008. http://researchrepository.murdoch.edu.au/1680/.

Testo completo
Abstract (sommario):
Diagnostic tools were developed and utilised to detect Toxoplasma gondii infection in a range of Australian marsupial species and identify epidemiological trends. An ELISA was developed to detect anti-T. gondii IgG in macropod marsupials. When compared with the commercially available MAT (modified agglutination test), the ELISA was in high agreement and yielded a ê coefficient of 0.96. Of 18 western grey kangaroos (Macropus fuliginosus) tested for the presence of T. gondii DNA by PCR, the 9 ELISA positive kangaroos tested PCR positive and the 9 ELISA negative kangaroos tested PCR negative indicating that the ELISA protocol was both highly specific and sensitive and correlated 100% with the more labour intensive PCR assay. A T. gondii seroprevalence study was undertaken on free ranging Australian marsupials. There was a T. gondii seroprevalence of 15.5% (95%CI: 10.7-20.3) in western grey kangaroos located in the Perth metropolitan area. The T. gondii seroprevalence in male western grey kangaroos was significantly less than their female counterparts (p=0.038), which may be related to behavioural differences causing differences in exposure to oocysts or recrudescence of T. gondii infection in pregnant females. Marsupial populations located in islands free from felids had a low overall T. gondii seroprevalence. A case control study determined that marsupials located in areas where felids may roam are 14.20 (95%CI: 1.94-103.66) times more likely to be T. gondii seropositive than marsupials located on felid-free islands. PCR, immunohistochemistry and serological techniques were used to detect T. gondii infection in marsupial dams and their offspring. T. gondii DNA was detected in the pouch young of chronically infected western grey kangaroos and a woylie (Bettongia penicillata). T. gondii DNA was also identified in the mammary gland of the woylie dam suggesting that infection of the woylie pouch young was from suckling milk from the mammary gland. Results of the study demonstrate that vertical transmission of T. gondii occurs in Australian marsupials and may be of importance in the maintenance of T. gondii infection in Australian marsupial populations. Animal tissue and meat from Australia, predominately from Australian marsupials, were screened for T. gondii DNA using PCR primers for the multi-copy, T. gondii specific B1 gene. Sequencing of the B1 gene revealed atypical genotypes in 7 out of 13 samples from Australia. These 7 isolates contained single nucleotide polymorphisms (SNPs) in the B1 gene that could not be matched with known sequences from strains I, II, III and X. Six unique genotypes were identified out of the 7 atypical isolates; two out of the 7 isolates had the same unique sequence at the B1 gene whereas the other 5 isolates each had different combinations of SNPs at the B1 gene. A majority of T. gondii isolates sampled from native Australian marsupials were of an atypical genotype. The discovery of atypical strains of T. gondii in Australia leads to further questions regarding the origin and transmission of these atypical strains. Additional studies linking atypical strains with their clinical manifestation are also warranted.
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6

Zabaras, Regina, University of Western Sydney, of Science Technology and Environment College e of Science Food and Horticulture School. "The evolution of semiochemicals in Australian marsupials". THESIS_CSTE_SFH_Zabaras_R.xml, 2003. http://handle.uws.edu.au:8081/1959.7/759.

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Abstract (sommario):
The aim of this project was to study the nature and relative proportion of the volatile components in the sternal-gland secretions obtained from a wide range of Australian marsupials.The results obtained were then used to investigate the evolution of semiochemicals in Australian marsupials by using the current phylogenetic tree as a template.The initial part of the study was dedicated to the investigation of some of the techniques available for the sampling and analysis of gland secretions. Individuals from 8 families within the Marsupialia and 1 family from the Monotremata were sampled over an 18 month period.The obtained results were then subjected to multivariate statistical analysis followed by cladistic analysis.In several species the secretion composition was found to be affected by the breeding status of individuals for both genders.Many other factors such as animal-age, hierarchical status, diet,and lifestyle were also observed to affect the secretion composition. Finally, cladistic analysis demonstrated the differences in the levels of divergence at the species, familial and ordinal levels and highlighted secretion components that could be used to differentiate between super families, species and even sexual status of individuals.
Master of Science (Hons)
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7

Zabaras, Regina. "The evolution of semiochemicals in Australian marsupials". Thesis, View thesis View thesis, 2003. http://handle.uws.edu.au:8081/1959.7/759.

Testo completo
Abstract (sommario):
The aim of this project was to study the nature and relative proportion of the volatile components in the sternal-gland secretions obtained from a wide range of Australian marsupials.The results obtained were then used to investigate the evolution of semiochemicals in Australian marsupials by using the current phylogenetic tree as a template.The initial part of the study was dedicated to the investigation of some of the techniques available for the sampling and analysis of gland secretions. Individuals from 8 families within the Marsupialia and 1 family from the Monotremata were sampled over an 18 month period.The obtained results were then subjected to multivariate statistical analysis followed by cladistic analysis.In several species the secretion composition was found to be affected by the breeding status of individuals for both genders.Many other factors such as animal-age, hierarchical status, diet,and lifestyle were also observed to affect the secretion composition. Finally, cladistic analysis demonstrated the differences in the levels of divergence at the species, familial and ordinal levels and highlighted secretion components that could be used to differentiate between super families, species and even sexual status of individuals.
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8

Zabaras, Regina. "The evolution of semiochemicals in Australian marsupials". View thesis View thesis, 2003. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030402.151527/index.html.

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Abstract (sommario):
Thesis (M.Sc. (Hons.)) -- University of Western Sydney, 2003.
"A thesis presented in partial fulfilment of the requirements for the degree of Master of Science (Honours), College of Science, Technology and the Environment, University of Western Sydney ... January, 2003" Bibliography : leaves 142-150.
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9

Martin, Meg Louise. "Morpho-functional adaptations to digging in Australian marsupials". Thesis, Martin, Meg Louise (2020) Morpho-functional adaptations to digging in Australian marsupials. PhD thesis, Murdoch University, 2020. https://researchrepository.murdoch.edu.au/id/eprint/58458/.

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Abstract (sommario):
Digging behaviour has evolved across multiple lineages of Australian marsupials and monotremes, some of which are amongst the most specialised diggers in the world. These animals forage for subterranean food sources, while others dig extensive burrow systems for shelter. The scratch-diggings, in turn, assist in soil turn over, water infiltration, nutrient cycling and dispersal of fungi and seeds, thus playing important roles in ecosystem health. Digging species are capable of generating high out-forces with their forelimbs to excavate soil. As form follows function, forelimb musculoskeletal morphology is expected to be driven by the forces that are imposed by their day-to-day activities, within the constraints imposed by phylogenetic background. In this thesis, I present four studies that quantitatively investigate intra- and inter-specific variation in forelimb adaptations to digging in Australian monotremes and marsupials to examine the link between skeletal morphology and muscle architecture. Representatives of all extant lineages of marsupials (Diprotodontia, Dasyuromorphia, Peramelemorphia, Notoryctemorphia) and monotremes (Monotremata) were used in a correlative study to examine the extent to which functional patterns of limb morphology are influenced by digging behaviour. Study 1 examined ontogenetic development of muscle architecture (muscle mass (mm) and muscle physiological cross-sectional area (PCSA)) in the Quenda (Isoodon fusciventer). This data demonstrated differential development of the muscles acting as main movers of the power-stroke during digging in comparison to recovery-stroke muscles for force production (PCSA) but on the whole suggested mechanical similarity throughout ontogeny in the sample. Study 2 examined the intraspecific relationship between the ontogenetic development of muscle architecture and 2D and 3D measures of bone shape to reveal that the shape of the scapula, humerus and third metacarpal show significant covariation with muscle anatomy. However, the relationship was not well-represented by bone indices. In study 3, the covariation between muscle PCSA and bone shape was quantified across a range of species. Bone shape was significantly different between species of different digging abilities; however, differences were not apparent after phylogenetic correction with the exception of the ulnar and third metacarpal shape. A significant link between muscles PCSA and shape was evident, especially for the scapula, humerus and third metacarpal. Study 4 extended the range of species examined for bone measures to reveal that ulnar shape and bone indices show significant differences between behaviour; this relationship was less evident in the scapula, humerus and third metacarpal. Overall, this collective body of work has quantified the extent to which forelimb muscle architecture and bone shape covary. This thesis also highlights the importance of ontogeny in quantitative studies of muscle architecture, and provides novel models of analysis of post-cranial anatomy. This information furthers the understanding of the complex links between vertebrate form and function. The application of these results will assist in making inferences of the behaviour and ecology of extinct species and the roles they may have played within the Australian ecosystem through time and space.
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10

Donahoe, Shannon. "Comparative pathogenesis of neosporosis and toxoplasmosis in Australian marsupials". Thesis, The University of Sydney, 2017. http://hdl.handle.net/2123/17031.

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Abstract (sommario):
Clinical and subclinical Neospora caninum and Toxoplasma gondii infections are reported in many animal species globally, including in Australia where little is known about the impact of parasite infection for native fauna. The investigations in this thesis were designed to fill existing knowledge gaps about the significance of neosporosis and toxoplasmosis in Australian marsupials. The fat-tailed dunnart (Sminthopsis crassicaudata) was used as an experimental model to study the immune response and susceptibility to infection of a native marsupial to N. caninum and T. gondii. Neospora-infected dunnarts had significantly more severe clinical and histopathological features of disease, higher tissue parasite burdens, and a less effective Th1 immune response than Toxoplasma-infected dunnarts. These results indicated the marsupial immune response may play a protective role in parasite infections analogous to what has been shown for eutherian models. This study was the first investigation of the marsupial immune response to N. caninum and T. gondii infection. To better understand toxoplasmosis and its significance in Australian wildlife, cases of naturally occurring disease were investigated in terrestrial and marine mammals. Clinicopathological features of disease were described and the causal parasite strains were genotyped. This work suggested that T. gondii may pose a disease threat to common wombats (Vombatus ursinus) and native marine fauna. Atypical and type II-like T. gondii strains accounted for all cases of toxoplasmosis investigated. Finally, to contextualize the possible significance of N. caninum for Australian wildlife, parasite-associated pathology in wildlife was comprehensively reviewed. As a whole, this thesis contributes substantial original knowledge about marsupial host-parasite interactions, pathological consequences of neosporosis and toxoplasmosis in native marsupials, and genetic diversity of T. gondii circulating in Australian wildlife.
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Libri sul tema "Australian marsupials"

1

The neurobiology of Australian marsupials. Cambridge: Cambridge University Press, 2010.

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2

A picture book of Australian animals. [Mahwah, N.J.]: Troll Associates, 1992.

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3

The flying emu and other Australian stories. London: Pavilion, 1991.

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4

Morgan, Sally. The flying emu and other Australian stories. New York: Alfred A. Knopf, 1993.

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5

Cáceres, Nilton, e Christopher R. Dickman, a cura di. American and Australasian Marsupials. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-88800-8.

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6

Triggs, Barbara. The wombat: Common wombats in Australia. Kensington, NSW, Australia: New South Wales University Press, 1988.

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7

Triggs, Barbara. The wombat: Common wombats in Australia. Sydney, Australia: UNSW Press, 1996.

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8

Karl, Vernes, a cura di. Kangaroo: Portrait of an extraordinary marsupial. Crows Nest, NSW: Allen & Unwin, 2010.

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Mansergh, I. M. The mountain pygmy-possum of the Australian Alps. Kensington, NSW, Australia: New South Wales University Press, 1994.

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Flannery, Tim F. The Macropodoidea (Marsupialia) of the early Pliocene Hamilton local fauna, Victoria, Australia. Chicago, Ill: Field Museum of Natural History, 1992.

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Capitoli di libri sul tema "Australian marsupials"

1

Williams, Ray. "Carnivorous Marsupials". In Care and Handling of Australian Native Animals, 67–74. P.O. Box 20, Mosman NSW 2088, Australia: Royal Zoological Society of New South Wales, 1990. http://dx.doi.org/10.7882/rzsnsw.1990.017.

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Legge, Sarah, Matt Hayward e Andrew Weeks. "Novel Conservation Strategies to Conserve Australian Marsupials". In American and Australasian Marsupials, 1–30. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-030-88800-8_56-1.

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3

Bradshaw, S. Don. "Ecophysiology of Australian Arid-Zone Marsupials". In On the Ecology of Australia’s Arid Zone, 103–32. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-93943-8_5.

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Kratzing, J. E. "Morphological Maturation of the Olfactory Epithelia of Australian Marsupials". In Ontogeny of Olfaction, 57–70. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-71576-1_5.

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5

Black, Karen H., Michael Archer, Suzanne J. Hand e Henk Godthelp. "The Rise of Australian Marsupials: A Synopsis of Biostratigraphic, Phylogenetic, Palaeoecologic and Palaeobiogeographic Understanding". In Earth and Life, 983–1078. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-90-481-3428-1_35.

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6

Salamon, Mario, Noel W. Davies e D. Michael Stoddart. "Olfactory Communication in Australian Marsupials with Particular Reference to Brushtail Possum, Koala, and Eastern Grey Kangaroo". In Advances in Chemical Signals in Vertebrates, 85–98. Boston, MA: Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-4733-4_6.

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Fardell, Loren L., e Chris R. Dickman. "Marsupials in Urban Environments". In American and Australasian Marsupials, 1–32. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-030-88800-8_52-1.

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Zangrandi, Priscilla L., e Emerson M. Vieira. "Semelparous Reproductive Strategy in New World Marsupials". In American and Australasian Marsupials, 1–29. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-88800-8_19-1.

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9

Delciellos, Ana C., e Marcus V. Vieira. "Positional Behavior and Locomotor Performance of American Marsupials: Links with Habitat and Substrate Use". In American and Australasian Marsupials, 1–23. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-88800-8_21-1.

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Vieira, Marcus V., Camila S. Barros e Ana C. Delciellos. "Impact of Habitat Loss and Fragmentation in Assemblages, Populations, and Individuals of American marsupials". In American and Australasian Marsupials, 1–29. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-88800-8_26-1.

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Atti di convegni sul tema "Australian marsupials"

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Allen, G. R., e J. W. V. Storey. "The Australian Geographic Team Marsupial Solar-Powered Car". In SAE International Congress and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1988. http://dx.doi.org/10.4271/880620.

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Scholtz, Elinor, e Larisa R. G. DeSantis. "USING DIETARY ECOLOGY TO EXAMINE THE IMPACTS OF NON-NATIVE SPECIES ON AUSTRALIAN MARSUPIAL HERBIVORES". In GSA Annual Meeting in Indianapolis, Indiana, USA - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018am-318748.

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Rapporti di organizzazioni sul tema "Australian marsupials"

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Karl Vernes, Karl Vernes. An expedition in search of one of Australia's most mysterious marsupials. Experiment, giugno 2018. http://dx.doi.org/10.18258/11466.

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