Gastrointestinal Nematodes in the Lizard Genus Pogona Storr (Agamidae) in Western-Australia

1986 ◽  
Vol 34 (5) ◽  
pp. 689 ◽  
Author(s):  
HI Jones

Twelve species of nematode were recovered from the gastrointestinal tract of 115 lizards in the genus Pogona (Agamidae) in Western Australia. Seven species belonged to the Physalopteridae, and three new species are described: Abbreviata pilbarensis, sp. nov., occurs only in the Pilbara region and possesses relatively small dorsal and ventral pseudolabial teeth, inconstant and irregular small denticles on the medial pseudolabial surface, left spicule more than twice the length of the right, vulva with short wide posteriorly directed tubular extension, and thick-shelled eggs; Abbreviata anomala, sp. nov., occurs throughout the State, and possesses small pseudolabia, small dorsal and ventral pseudolabial teeth, an even row of 40-60 small denticles lining the medial pseudolabial surface, left spicule 3-4 times the length of the right, five pairs of pedunculate pericloacal papillae, and females with truncated rounded tail and vulva 3-5% of body length from anterior end; Kreisiella lesueurii, sp. nov., was identified from the south-west, and possesses a row of fine even denticles extending the width of the medial pseudolabial margin, no apical, dorsal or ventral pseudolabial teeth, a restricted area of tubercles on the male ventral tail surface, a short and thick right spicule, four pairs of pedunculate pericloacal papillae, caudal alae not meeting anteriorly and not extending to the tip of the tail, and females with truncated rounded tail and anteriorly placed vulva. The male of Maxvachonia brygooi is described: it possesses lateral alae and differs from M. chabaudi only in the larger size of the gubernaculum and spicules. Other species recorded were Strongyluris paronai, Physalopteroides filicauda, Skrjabinoptera goldmanae, Abbreviata antarctica, Pseudorictularia disparilis, one species of Oxyuroidea, and two species of Trichostrongyloidea. Concurrent infection with M. brygooi and S. goldmanae was positively correlated, and prevalence and intensity of both species increased with host size, in Pogona minor mitchelli. Prevalence and intensity of infection, and species diversity, were highest in the northern, subtropical parts of the State, and lowest in the drier central and southern inland. Cysts containing physalopteran larvae were present in the stomach wall of many hosts; prevalence and intensity of cysts was highest in the northern area.

1980 ◽  
Vol 28 (3) ◽  
pp. 423 ◽  
Author(s):  
HI Jones

Host and distribution records are presented of Spironoura fordoniae (Oxyuroidea), Camallanides cerberi (Camallanoidea) and Heliconema longissima (Physalopteroidea) in aquatic colubrid snakes, and of Ophidascaris pyrrhus (Ascaridoidea) in elapid snakes in Western Australia. In the case of O. pyrrhus highest prevalence of infection, and largest worms, were in the south-west part of the State, and the epidemiological evidence presented suggests that amphibians and reptiles may be intermediate hosts. Concurrent infection of O. pyrrhus and Abbreviata spp. was moderately significant in Notechis ater (P = 0.038) and in Echiopsis curta (P = 0.099). Hastospiculum drysdaliae, sp. nov. (Diplotriaenoidea) is described from Drysdalia coronata. It differs from other species in the genus in the absence of papillae at the anterior end, and in the number and conformation of pedunculate papillae at the posterior end in the male. A key to the species of Hastospiculum is provided.


Author(s):  
David Worth

Over the past 30 years in Western Australia (WA), there has been heated debate about the future use of the remaining karri and jarrah forests in the south-west of the State. This debate revolves around policy proposals from two social movements: one wants to preserve as much of the remaining old-growth forests as possible, and an opposing movement supports a continued


1983 ◽  
Vol 31 (2) ◽  
pp. 285 ◽  
Author(s):  
HI Jones

Six species of nematode in the genus Abbreviata were recovered from the stomachs of 58 Varanus gouldii, s.l., in Western Australia: A. hastaspicula, A. barrowi, A, antarctica, A. levicauda, sp. nov., A. tumidocapitis, sp. nov., and an unnamed species. A. occidentalis Jones, 1978 is reduced to synonomy with A. antarctica (Linstow, 1899). A, hastaspicula was recovered from all hosts examined except those from the south-west of the State, where it was replaced by A. antarctica. A. levicauda and A. tumidocapitis occurred concurrently with one or both of the above species. Th'e increase in A. hastaspicula numbers with host size in V. gouldii, s.s., (P<0,05) and in V. panoptes (P<0,05) indicates that there is no effective host immune response. A. hastaspicula numbers were unaffected by concurrent A. levicauda infection. There was a positive correlation between numbers of Abbreviata sp. larvae and A. hastaspicula (P<0.01), and between Abbreviata sp. larvae and A. antarctica (P<0.01), in V. gouldii, s.s. No larvae were seen in the stomach wall of these Varanus, and it is concluded that those which occur commonly in this situation in elapid snakes are probably larvae of A. hastaspicula or A. levicauda, which appear to be unable to mature in these hosts.


1985 ◽  
Vol 12 (2) ◽  
pp. 227 ◽  
Author(s):  
DR King ◽  
AJ Oliver ◽  
SH Wheeler

Spilopsyllus cuniculi, a vector of myxomatosis, was introduced by various methods at several sites in the south-west of Western Australia in May 1969 for the biological control of rabbits. It spread rapidly and within 14 months all rabbits collected within about 5 km of one of the release sites were infested with fleas. Further introductions of the flea during the past decade have resulted in a wide distribution for it throughout the south-west of the state. Flea numbers fluctuate seasonally and are highest in reproductively active female rabbits in winter and spring. Since the introductions of the flea, the timing of epizootics of myxomatosis has changed and their effect on rabbit populations has increased.


1992 ◽  
Vol 40 (2) ◽  
pp. 115 ◽  
Author(s):  
HI Jones

Nine species of nematode were recovered from the gastrointestinal tract of 82 lizards in the genus Tiliqua and 41 lizards in the genus Cyclodomorphus (Scincidae) in Western Australia. Parapharyngodon fitzroyi, sp. nov. possesses lateral alae in males and a prominent postanal cone bearing two very small papillae. There is no sclerotised V-shaped accessory piece, and the spicular pouch opens immediately posterior to the anus. The female's tail is rounded with a small slightly posteriorly-directed terminal spike. This nematode possesses some characteristics of Thelandros, and it is suggested that the taxonomic criteria differentiating these two genera have yet to be clarified. P. fitzroyi occurred at low prevalence and generally low intensity in Tiliqua multifasciata and Cyclodomorphus branchialis in the centre and north of the State. Thelandros trachysauri exhibited morphological variability, with two spicule lengths in males, and a wide range in tail lengths in the female. This species predominated at high intensity in Tiliqua rugosa in the south ana west, and Pharyngodon tiliquae occurred at high intensity and prevalence in Tiliqua occipitalis.,Tiliqua multifasciata and Cyclodomorphus branchialis throughout the State. Despite extensive sympatry between two pairs of these oxyurid species, and a limited area of sympatry between all three, these nematodes did not occur concurrently in the same individual to any significant extent. Abbreviata antarctica occurred at high prevalence and intensity in T. occipitalis in the south and west of the State. Encysted physalopterid larvae were only seen in the stomachs of T. multifasciata, in central and northern areas. Other species recorded were Abbreviata tumidocapitis (larva only), Kreisiella lesueurii, Pseudorictularia disparilis, Physalopteroides filicauda and Maxvachonia brygooi. Differences in the nematode communities in these four lizard species can be related to host diet, geographical range of host and of nematode (possible environmental constraints on the free-living stages), and perhaps inherent insusceptibility to infection.


Soil Research ◽  
1994 ◽  
Vol 32 (3) ◽  
pp. 359 ◽  
Author(s):  
HR Cochrane ◽  
G Scholz ◽  
AME Vanvreswyk

Sodic soils are common throughout Western Australia, particularly in the south-west agricultural area where they occur mainly as duplex or gradational profiles. Soils with sodic properties are dominant in 26% of the state; saline-sodic sediments and soils in intermittent streams, lakes and estuarine plains occupy a further 5%. Sodic soils are moderately common throughout the south and western portion of the rangeland areas (38% of the state). The south-west coastal sands and the desert and rangeland soils to the north and east of the state are rarely sodic. Although sodicity has been recognized as a discrete problem in W.A. soils since the 1920s, the extent and severity of sodicity has been satisfactorily described only for small areas of the state and most land managers are unaware of the role sodicity plays in limiting the productivity of their soils. Sodicity is implicated in a diversity of problems for both agricultural and non-agricultural uses of Western Australian soils. Subsoil impermeability is probably the most widespread of these, but no comprehensive, quantitative assessment of the influence of exchangeable sodium on subsoil properties has been undertaken. Topsoil sodicity is much less extensive but can severely restrict land productivity, particularly on sandy loam and finer textured soils which set hard when dry. The physical behaviour of Western Australian topsoils cannot usefully be predicted from measurements of exchangeable sodium alone because soils differ so greatly in their response to changing exchangeable sodium. Some remain structurally stable at ESP values >15 while others are so 'sodium-sensitive' that they exhibit highly dispersive behaviour at ESP values as low as 2%. Land values over much of the dryland farming and pastoral areas of W.A. do not justify sustained use of amendments which would reduce soil exchangeable sodium contents. Efficient management of sodic soils in these areas must rely on the prevention of degradation and the use of biological and physical means to maintain adequate soil physical properties. Effective restoration of degraded sodic soils, however, often does require application of inorganic amendments in combination with tillage to initiate structural recovery. Sodicity is currently not considered to be a problem at any of the three main irrigation areas in W.A., but all have sodic soil within their potentially irrigable lands, which may limit their future expansion.


1978 ◽  
Vol 26 (4) ◽  
pp. 789 ◽  
Author(s):  
HI Jones

Four new species of Abbreviata (Physalopteridae) are reported from Western Australian snakes, viz. Abbreviata barrowi, sp. nov., Abbreviata occidentalis, sp. nov., Abbreviata kumarinae, sp. nov., and Abbreviata aechmespiculum, sp, nov. Larval Abbreviata not identifiable to species were found in almost half the snakes examined. These were almost absent from the south-west part of Western Australia and were most prevalent in the north of the state. Infections could not be related to season, or to food residues in the hosts. It is suggested that these larvae were unable to mature in the snakes, which were acting as paratenic hosts, and that the most likely definitive hosts were Varanus lizards. A key to the Abbreviata species from Australian and Papua New Guinea reptiles is provided.


2014 ◽  
Vol 45 (3) ◽  
pp. 283-302 ◽  
Author(s):  
Gary S. Taylor ◽  
Melinda L. Moir

Three new species of jumping plant-lice (Psylloidea) are described from Western Australia. Acizzia hughesae sp.n. occurs on Acacia veronica Maslin (Fabaceae: Mimosoideae), A. mccarthyi sp.n. on an undescribed species of Grevillea (Proteaceae) identified by the Western Australian State Government as in need of conservation action (Grevillea sp. ‘Stirling Range’) and Trioza barrettae sp.n. from the critically endangered Banksia brownii (Proteaceae). These new species of jumping plant-lice are considered rare, and at risk of extinction, or coextinction, as they are recorded from plant species with highly restricted distributions in the south-west of Western Australia. Indeed, the Western Australian State Government recently classified two of the three new jumping plant-lice species as threatened.


2006 ◽  
Vol 12 (2) ◽  
pp. 111 ◽  
Author(s):  
R. A How ◽  
M. A Cowan

Native frog, mammal and reptile specimen data in the Western Australian Museum were examined from the western third of the Australian continent covering nearly 22 degrees of latitude and 16 degrees of longitude and encompassing tropical, desert and temperate regions. The timing of specimen data collection and collecting effort were evaluated and show that large areas of the State remain poorly sampled. The great majority of the collections have been made over the last 50 years and taxonomic status of many vertebrate species is still in review with several new species being described. Systematic surveys need to be undertaken to address the inadequacy of information on vertebrate fauna distributions over large tracts of the desert and pastoral areas of Western Australia. The distribution of taxa endemic to Western Australia, threatened and priority taxa as well as restricted?range endemic taxa were examined over equal areas based on the 1 :250 000 map series that covers the western third of the Australian continent. Endemic taxa are focused in the south-west of the state and along the west coast, while restricted-range endemics are more frequently distriooted along the west and northwestern coasts. Threatened and priority taxa show a similar pattern to that of endemic taxa. The similarity of areas across Western Australia, based on the composition of their vertebrate fauna, indicates that there are four broad regions corresponding to the tropical north, the mesic south-west, the semi-arid southwestern interior and the arid Pilbara and desert areas. Additionally, regional areas defined under the IBRA scheme were examined for the number of sampling locations, endemic taxa in the various fauna! groups and the richness of taxa recorded. The Pilbara bioregion, one of the best-sampled areas of the State, showed limited concordance between vertebrate taxa similarity in half-degree cells and subregional boundaries and relatively high heterogeneity in vertebrate fauna distribution across the bioregion.


2018 ◽  
Vol 13 (1) ◽  
pp. 70-88
Author(s):  
Mohd Faez Mohd Shah ◽  
Norhidayah Pauzi

In the discipline of Islamic law research, strong proofing and clear Istinbat method are key pillars in the construction of Islamic law based on the application of the science of usul al-fiqh and maqasid al-shari'ah. However, what happens at the state of Johor’s fatwa institution is the opposite. The fatwa research methods applied by the Fatwa Committee of Johor in resolving current fatwa issues is not based on the right and true discipline of Islamic law research. In fact, current inputs related to fatwa issues are not explicitly stated in the method of determining the law either in the form of reality or scientifically verified. Therefore, this paper will discuss the fatwa procedures undertaken by the Fatwa Committee of Johor based on the methods applied in resolving current issues. The research methodology adopted is library and interview methods. This study shows that fatwa management and production in the state of Johor is placed under the jurisdiction of the Mufti of Johor’s Department. The methods adopted by the Fatwa Committee of Johor covers two methods, namely: internal research methods including literature review through the application of original source and proofs based on syarak. Second: field research method that includes an external review or going to the location of study such as conducting observation, questionnaires and interviews including referrals to specialists of different fields. Maslahah and mafsdah consideration are also implemented by the Fatwa Committee in every fatwa decision based on the standard that meets the interests of maqasid al-shari'ah. Keywords: Metode, fatwa, istinbat, usul al-fiqh, maqasid al-shari’ah ABSTRAK Dalam disiplin penyelidikan hukum Islam, kekuatan pendalilan dan kaedah istinbat yang jelas merupakan tunggak utama dalam pembinaan hukum Islam berasaskan kepada aplikasi ilmu usul al-fiqh dan maqasid al-shari’ah. Namun begitu, apa yang berlaku di institusi fatwa negeri Johor adalah sebaliknya. Kaedah penyelidikan fatwa yang diaplikasi oleh Jawatankuasa Fatwa Negeri Johor dalam menyelesaikan isu fatwa semasa tidak berasaskan kepada disiplin penyelidikan hukum Islam yang tepat dan sebenar. Malahan input-input semasa yang berkaitan dengan isu fatwa juga tidak dinyatakan secara jelas dalam kaedah penentuan hukum sama ada dalam bentuk realiti yang berlaku atau pembuktian secara saintifik. Justeru, kertas kerja ini akan membincangkan prosedur fatwa Jawatankuasa Fatwa Negeri Johor berdasarkan metode-metode yang diaplikasi dalam menyelesaikan isu-isu yang bersifat semasa. Metodologi kajian yang digunakan dalam kajian ini adalah melalui metode perpustakaan dan metode lapangan. Hasil kajian menunjukkan bahawa pengurusan dan pengeluaran fatwa di negeri Johor hanya terletak di bawah bidang kuasa Jabatan Mufti Johor. Metode fatwa yang diamalkan oleh Jawatankuasa Fatwa Negeri Johor merangkumi dua metode iaitu pertama, kaedah penyelidikan dalaman yang merangkumi kajian kepustakaan menerusi pengaplikasian dari sumber asas dan dalil-dalil syarak. Kedua, kaedah penyelidikan lapangan yang meliputi kajian luaran atau turun ke lokasi kajian seperti observasi, soal selidik dan temubual dan rujukan kepada pakar dalam bidang yang berlainan. Pertimbangan maslahah dan mafsdah juga dimplementasikan oleh Jawatankuasa Fatwa dalam setiap keputusan fatwanya berasaskan standard yang menepati kepentingan maqasid al-shari’ah. Kata kunci: Metode, fatwa, istinbat, usul al-fiqh, maqasid al-shari’ah


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