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Population decline
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Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2021) 42 (1): 95–110.
Published: 04 August 2021
..., predation by the Red Fox Vulpes vulpes and non-target effects of predator control programs. * Corresponding author: [email protected] local population decline and likely loss habitat isolation lack of fire competition for food with Alectura latham i drought predator control...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2014) 26 (3-4): 109–129.
Published: 17 March 2014
...Peter Smith; Judy Smith The Koala population in Warringah Shire has declined over the last 50 years with increasing urbanization. Koalas were reported from various localities throughout the Shire in the 1940's, 1950's and 1960's. They now occur only at Barrenjoey Peninsula. Ku-ring-gai Chase...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2014) 30 (3): 316–324.
Published: 17 March 2014
...Cameron Webb; Jean Joss Gambusia holbrooki is a small, aggressive fish introduced into Australia in 1925 to control mosquitoes. It has been suggested that this species may also prey on tadpoles and be a contributing factor in the decline of some Australian frog populations. We examined...
Book Chapter
Series: Other RZS NSW Publications
Publisher: Royal Zoological Society of New South Wales
Published: 01 January 1999
10.7882/RZSNSW.1999.064
EISBN: 0-9586085-1-2
... to determine the status, conservation priorities, ecological requirements of the butterfly, and to identify factors contributing to its population decline. Habitat loss appears to be the main factor contributing to population decline. Management of the population will focus on maintaining food plant...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2014) 33 (1): 69–99.
Published: 17 March 2014
... populations, P. cinereus populations then had many more episodes of high mortality, population size appears markedly more volatile and overall abundance was much higher. Southern Queensland populations declined greatly at the time of the harvests, but the central Queensland population expanded after the last...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2014) 30 (2): 190–198.
Published: 17 March 2014
... of population declines in the species complex has been assessed by examination of museum specimens and records, evaluation of reports by experienced herpetologists and by undertaking field surveys, particularly in the Canberra region. Examination of museum material confirmed that three taxa occurred...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2014) 30 (2): 237–247.
Published: 17 March 2014
...Michael Mahony The Green and Golden Bell Frog Litoria aurea has undergone a reduction in range and significant population declines during the past 15 years. In this paper the decline is viewed from the perspective of declines and disappearances of other species of frog along the east coast...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2014) 31 (1): 92–109.
Published: 17 March 2014
.... We conclude that the data are consistent with the hypothesis that the Gouldian Finch suffered a major population decline in the Kimberley area in the late 1970s. We also discuss a range of “sustainable conservation” issues related to the harvest of wild birds for the avicultural trade and suggest...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2024) 43 (4): 599–614.
Published: 04 October 2024
... threatened with multiple landscape persistent stressors that are not mitigated by singular conservation actions. Presented here as a case study, we argue this integrated approach used for Littlejohn's tree frog could be adopted for other species facing perilous population declines. Towards an integrated...
Book Chapter
Series: Other RZS NSW Publications
Publisher: Royal Zoological Society of New South Wales
Published: 01 January 2004
10.7882/FS.2004.020
EISBN: 978-0-9586085-8-9
...-100 km in search of food within the Mt Lofty region. The habitats that provide floral nectar during late summer and autumn, the gum and box woodlands, however, have been disproportionately cleared and honeyeater populations decline during these times. As a consequence, honeyeaters are unable...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2014) 30 (2): 150–157.
Published: 17 March 2014
...T. F. van de Mortel; W. A. Buttemer Global declines in amphibian populations in often pristine habitats have led to suggestions that a ubiquitous agent might be involved, such as increased Ultraviolet-B (280-320 nm) radiation due to ozone depletion. The Green and Golden Bell Frog Litoria aurea...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2017) 38 (4): 518–536.
Published: 01 September 2017
... of anthropogenic factors, including hunting for the fur trade, resulted in widespread population declines for the koala. In Victoria, the situation was extreme. Currently, many koala populations in Victoria are derived from only a few individuals which existed less than 120 years ago. These populations therefore...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2014) 31 (1): 240–253.
Published: 17 March 2014
... targeted for urban and rural residential development to cater for an ongoing, rapid increase in human population. The conclusion drawn from this study was that Grey-headed Flying-foxes are vulnerable to population decline from the ongoing clearing of their critical over-wintering habitat in lowland coastal...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2014) 30 (2): 177–189.
Published: 17 March 2014
...Arthur White; Graham Pyke The Green and Golden Bell Frog Litoria aurea has undergone a dramatic population decline in New South Wales. During this time the species' status in this state has changed from being common in the 1960s to endangered in 1992. To assess the present population numbers...
Book Chapter
Series: Other RZS NSW Publications
Publisher: Royal Zoological Society of New South Wales
Published: 01 January 1993
10.7882/RZSNSW.1993.008
EISBN: 0-9599951-8-8
..., are distinctive at higher taxonomic levels. In this paper, the conservation priorities of several species of concern are assessed against criteria of rarity, distinctiveness, intrinsic vulnerability to population decline, and the level of threat currently faced. In many cases, far too little is known...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2011) 35 (2): 307–314.
Published: 14 October 2011
...Hamish McCallum; Menna Jones As the largest surviving marsupial carnivore, the Tasmanian devil is an iconic species. A disfiguring and invariably fatal facial cancer, first reported in 1996, has now spread across most of the range of the devil, leading to population declines of up to 90...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2011) 35 (2): 189–197.
Published: 14 October 2011
... to be more of a generalist in its reproductive requirements. These differences afforded an opportunity to explore how a species' behavioural and ecological traits may provide resilience to population declines due to climate or habitat alterations. Amphibian Mixophyes endangered breeding ecology...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2011) 34 (3): 426–437.
Published: 14 October 2011
...Sharada Ramamurthy; Graeme Coulson The Growling Grass Frog Litoria raniformis has undergone population declines throughout its range over the past 20 years and is listed as a threatened species both in Victoria and nationally. The species was last recorded in 1979 in the area now occupied...
Book Chapter
Series: Other RZS NSW Publications
Publisher: Royal Zoological Society of New South Wales
Published: 01 January 1993
10.7882/RZSNSW.1993.044
EISBN: 0-9599951-8-8
... In Queensland since 1978, seven species of frogs have disappeared and populations of another four have seriously declined. All the declines have occurred in upland rainforest and all the species live along or breed in streams. We ask the question “what is wrong with upland rainforest streams...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2011) 35 (3): 846–852.
Published: 20 October 2011
.... About 200-300 tadpoles were recorded at this same site in January 2005; this cohort declined to about 15 tadpoles by September 2005. A total of 20 small tadpoles were taken into captivity in January 2005 in an attempt to maintain a captive population. Swab samples taken from free-living tadpoles...
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