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Articles 1 - 10 of 10
Full-Text Articles in Life Sciences
The Value Of Oil Mallee Plantations And Revegetated Farm Land In The Southern Wheatbelt Region Of Western Australia For The Conservation Of The Western Pygmy Possum (Cercartetus Concinnus), Marie Short
Theses : Honours
Revegetation has the potential to enhance conservation of wildlife in rural environments, but few studies have tested whether the proposed benefits are realized. It is important to understand the role played by farm tree plantations in the landscape and how the potential biodiversity benefits may be enhanced without interfering with economic goals (Lamb, 1998). The adoption of oil mallee farming systems across the agricultural zone in south-west Western Australia is resulting in large areas of farmland being planted to native perennial tree species (Smith, 2004). While not planted for their conservation benefit, oil mallee systems may nonetheless enhance biodiversity. The …
A Study Of The Effects Of Probait On Chuditch, Dasyurus Geoffroii, Within The Julimar Conservation Park With Notes On The General Ecology, Melissa York
Theses : Honours
Broad scale fox baiting programs have been underway in Western Australia since 1996 when the Western Shield fauna recovery program commenced with the aim of recovering many fauna species that are under threat of extinction. Until recently, effective fox control for fauna recovery has been achieved with dried meat baits impregnated with the poison 1080. The Department of Conservation and Land Management (CALM) has developed more readily available and cost effective sausage meat baits, termed Probait. As bait acceptability trials in the laboratory indicated a potential risk from Pro bait ingestion by chuditch (Dasyurus geoffroii), assessment of the likely risk …
Investigation Into The Use Of Bait Stations For The Control Of The European Wild Rabbit (Oryctolagus Cuniculus) In The Urban Bushland Reserve Of Bold Park, Perth, Western Australia, Malin Kordes
Theses : Honours
European rabbits in Australia have a significant impact on the environment and the economy. It is therefore necessary to implement control programs. In rural areas a number of methods including warren ripping and poisoning are frequently used. In urban areas though, rabbit control is not as easily accomplished because the use of many control methods is not appropriate. For example, the poison 1080 often cannot be used due to public health concerns and warren ripping cannot be used in conservation areas. Poisoning with pindone, an anticoagulant, is therefore one of few options available to the managers of urban reserves. However, …
Seasonal Effects On Diet Of Two Arid Zone Dasyurids, Dasycercus Cristicauda And Ningaui Ridei (Dasyuridae, Marsupialia), Leisa Turner
Seasonal Effects On Diet Of Two Arid Zone Dasyurids, Dasycercus Cristicauda And Ningaui Ridei (Dasyuridae, Marsupialia), Leisa Turner
Theses : Honours
Seasonal fluctuations in rainfall and food availability are thought to change populations of arid zone mammals dramatically over time. Competition between similar species for limited food resources is believed to be a major factor in the evolution and maintenance of population assemblages. Animals foraging in arid regions must be responsive to the unreliable distribution of nutrients and food resources to ensure the survival of viable populations. Adaptive physiological traits and behavioural mechanisms of arid zone animals allow them to survive extreme conditions and the ability to switch between prey species in adverse conditions is an advantageous strategy. This study was …
Using Habitat Characteristics And Predictive Gis Modelling To Aid In Conserving The Heath Mouse (Pseudomys Shortridgei) In Lake Magenta Nature Reserve, Kirsty Quinlan
Theses : Honours
The Heath Mouse (Pseutlomys shortridgei) was formerly widely distributed in Western Australia and Victoria. However, now it is known only to exist in areasof fragmented habitat. Heath Mouse populations have not been investigated in Western Australia, as it was thought to be extinct in the state until its rediscovery in 1987. It is known from only tour locations, and from these, the highest numbers known are probably the 18 captures of this mouse from five years of trapping in Lake Magenta Nature Reserve. Given the few numbers of Heath Mice, the purpose of this study was to identify …
A Diet Study Of Australia's Most Critically Endangered Mammal, Gilbert's Potoroo, Potorous Gilbertii (Marsupialia : Potoroidae), Vinh Nguyen
Theses : Honours
After 125 years of presumed extinction, Gilbert's Potoroo (Potorous gilbertii) was rediscovered in 1994 in Two Peoples Bay Nature Reserve, Albany. As only one population is known to exist, conservation is of prime importance. Faecal analysis was used to examine the diet of P. gilbertii. The species was found to be predominantly mycophagous (fungus-feeding) with invertebrate and plant matter fanning only a small part of its diet. Fungal material made up more than 90% of faecal matter throughout the year. A total of 44 fungal spore types were discerned. Of these, five were tentatively identified to species level with the …
Population Dynamics Of The Southern Brown Bandicoot (Isoodon Obesulus) On Ellen Brook Reserve, Craig Pentland
Population Dynamics Of The Southern Brown Bandicoot (Isoodon Obesulus) On Ellen Brook Reserve, Craig Pentland
Theses : Honours
The small, enclosed section of Ellen Brook Reserve provided the unique opportunity to observe a population of southern-brown bandicoots (lsoodon obesulus) in the absence of exotic predators. The reserves small-enclosed size enabled it possible to trap the whole area (excluding the ephemeral swamps) and so emigration and immigration could be excluded. This enabled good population size estimates, and inferences on the loss of individuals due to mortality could be more strongly argued for. An understanding of the population structure, dynamics, size and density, and body condition of I. obesulus in Ellen Brook Reserve, will provide important information, for …
Myofibrillar Protein Composition Of Regenerating And Pristine Claw Closer Muscles Of The Yabby, Cherax Albidis, Lanelle Cutler
Myofibrillar Protein Composition Of Regenerating And Pristine Claw Closer Muscles Of The Yabby, Cherax Albidis, Lanelle Cutler
Theses : Honours
Yabbies have the ability to regenerate lost limbs. Loss of a limb results in the growth of a limb bud. Development of this new limb involves many developing stages until the new limb becomes morphologically and physiologically virtually indistinguishable from its predecessor. In the yabby, the claw becomes functional after the first moult when the dactyl becomes moveable. However, the muscle fibres are able to develop force and appear to be functioning before the dactyl becomes moveable and the claw is operational (West et al., 1995). This study aimed to document morphological stages of claw regeneration and determine sequence and …
Behaviour Of Gilbert's Potoroo (Potorous Gilbertii Gould) In Captivity, Kylie Dijon Burke
Behaviour Of Gilbert's Potoroo (Potorous Gilbertii Gould) In Captivity, Kylie Dijon Burke
Theses : Honours
In late 1994, Gilbert's Potoroo was rediscovered almost 120 years after it was believed to have become extinct. It was found at Two Peoples Bay Nature Reserve, near Albany, Western Australia. Since then, it has become urgent that detailed studies of the potoroo's behaviour and ecology be undertaken, so as to increase the understanding of the needs of 'this critically endangered marsupial. Due to its critical status, increasing the number of animals is of paramount importance to the continued survival of this species. An understanding of the behavioural repertoire of the species will aid in its recovery and provide the …
Microhabitat Use By Gilbert's Potoroo (Potorous Tridactylus Gilbertii Gould) In Relation To Vegetation Associations And Ground Cover, S. Vetten
Theses : Honours
Gilbert's potoroo has been rediscovered 120 years after it was believed to have become extinct. In 1994 the presence of Gilbert's potoroo was confirmed at Two Peoples Bay Nature Reserve, near Albany, and since that time the need for a detailed understanding of the biology and behaviour of the species has become urgent. An understanding of the habitat requirements of the species will aid in its recovery from its present critically endangered status and will act as a guide for future management decisions concerning translocations of new populations into other areas. The present study was conducted at Two Peoples Bay …