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Journal Articles
Australian Zoologist (2014) 33 (2): 210–216.
Published: 17 March 2014
...Ross Goldingay; David Newell Estimates of population size are fundamental to the development of effective management of threatened species. We conducted a tagging study of a population of the endangered Green and Golden Bell Frog Litoria aurea at Port Kembla, on the New South Wales south coast...
Journal Articles
Australian Zoologist (2011) 34 (4): 522–529.
Published: 20 October 2011
... Publishers: London. Stock Assessment, Quantitative Methods and Applications for Small-Scale Fisheries Garrod, D.J. 1963. The application of a method for the estimation of growth parameters from tagging data at unequal time intervals. North Atlantic Fish marking symposium. ICNAF, Special Publication...
Book Chapter
Series: Other RZS NSW Publications
Publisher: Royal Zoological Society of New South Wales
Published: 01 January 1999
DOI: 10.7882/RZSNSW.1999.001
EISBN: 0-9586085-1-2
... In the early 1980s estimates of how many species there are on Earth increased by several orders of magnitude; from 2 to 3 million to more than 100 million. Since that time much effort has been placed on refining such species estimates, particularly for insects. Estimates for other non-vertebrate...
Book Chapter
Series: Other RZS NSW Publications
Publisher: Royal Zoological Society of New South Wales
Published: 01 January 2011
DOI: 10.7882/FS.2011.013
EISBN: 978-0-9803272-4-3
... eruption technique is more reliable in estimating age in flying-foxes up to 140 days old. Further research should compare rates and patterns of tooth eruption in hand-raised to mother-raised pups and use a larger sample size to look for any sex differences. Accurate ages for pups will contribute...
Book Chapter
Book Chapter
Series: Other RZS NSW Publications
Publisher: Royal Zoological Society of New South Wales
Published: 01 January 1993
DOI: 10.7882/RZSNSW.1993.032
EISBN: 0-9599951-8-8
... to estimate the total biomass and energy flow-through of tortoises in the Murray in an effort to assess the possible consequences of widespread decline in the populations. I estimate that, in the Murray from upstream of Lake Hume to the Barrages, there are between 10 000 and 100 000 tonnes of tortoises...
Book Chapter
Series: Other RZS NSW Publications
Publisher: Royal Zoological Society of New South Wales
Published: 01 January 2008
DOI: 10.7882/FS.2008.011
EISBN: 978-0-9803272-2-9
... We radiotracked 18 pet cats Felis catus from rural and urban areas within the City of Armadale, Western Australia, both at night and during the day between August 2003 and February 2005 to estimate the size of buffer zone required to reduce incursions by pet cats into native bushland. Home...
Journal Articles
Australian Zoologist (2021) 41 (3): 322–337.
Published: 24 February 2021
... into dingo populations, particularly in southeastern Australia, and the impact this has on conservation goals. However, the discovery of biogeographic subdivision within dingoes raises questions about the accuracy of the current methods used for estimating dog vs dingo ancestry. I caution scientists...
Journal Articles
Australian Zoologist (2018) 39 (4): 733–747.
Published: 01 December 2018
... collection. In addition, long-term monitoring typically requires multiple observers, which may add observation bias to estimates of measured parameters. Thus there is an increasing need to develop new statistical techniques that take advantage of the power of long time-series datasets that also...
Book Chapter
Series: Other RZS NSW Publications
Publisher: Royal Zoological Society of New South Wales
Published: 01 January 1999
DOI: 10.7882/RZSNSW.1999.008
EISBN: 0-9586085-1-2
... To measure the level of replication needed to detect changes in arboreal arthropods, a data set based on the arthropod faunas of 26 replicate trees of the species Melaleuca linariifolia was analysed. Analysis showed that the number of species, individuals per tree and Chao 1 estimation...
Book Chapter
Series: Other RZS NSW Publications
Publisher: Royal Zoological Society of New South Wales
Published: 01 January 1993
DOI: 10.7882/RZSNSW.1993.042
EISBN: 0-9599951-8-8
... in the number of species recorded, but differed markedly in estimates of abundance. Transect censusing and active searching techniques provided comparable density estimates overall, in contrast to estimates using spot censusing which were markedly greater. Skinks constituted most of the records for all three...
Journal Articles
Australian Zoologist (2018) 39 (4): 784–800.
Published: 01 December 2018
... using two types of aircraft: fixed-wing and helicopters. The NSW Commercial Kangaroo Harvest Management Plan 2017–21 states that harvest quotas are set at between 15 and 17% of the estimated kangaroo populations. As an example of the scale and intensity of kangaroo distribution and harvesting in NSW...
Journal Articles
Australian Zoologist (2014) 31 (1): 280–286.
Published: 17 March 2014
...A. R. Pople In order to monitor population trends through space and time, aerial surveys need to provide density estimates that are a constant proportion of the true population density and are therefore repeatable. Previous work has identified factors that affect the visibility of kangaroos from...
Journal Articles
Australian Zoologist (2022) 42 (2): 592–607.
Published: 31 August 2022
...-fire in 2020/21. An occupancy modelling approach was used to estimate trends in occupancy between 1995 and 2020/21, including the influence of various covariates. Initial occupancy was positively associated with the extent of Montane Gums and mixed Wet Peppermint/Montane Gum forest types within a 450 m...
Journal Articles
Australian Zoologist (2022) 42 (2): 304–325.
Published: 10 August 2022
... only detected at unburnt sites, the numbers were too low for reliable estimates of differences. Red Fox scat analysis (n=23) revealed that invertebrates and plant material were the dominant prey items in both burnt and unburnt sites, but medium-sized mammals increased in Red Fox diets in burnt sites...
Journal Articles
Australian Zoologist (2014) 36 (4): 381–403.
Published: 28 January 2014
...L. Broome; F. Ford; M. Dawson; K. Green; D. Little; N. McElhinney The New South Wales population of the Mountain Pygmy-possum Burramys parvus was estimated at 500 adults in 8 km 2 of boulder-heath habitat during surveys in the 1980's. In 1989, this estimate was increased to 1312 adults based...
Journal Articles
Australian Zoologist (2022) 42 (2): 217–222.
Published: 20 May 2022
...Dale G. Nimmo; Chris J. Jolly; Alexandra J. R. Carthey ABSTRACT Southern Australia’s 2019–20 wildfire season was unprecedented, but the ecological toll remains poorly understood. Estimates of three billion animals being affected by the fires attracted global attention, but how many of those animals...
Journal Articles
Australian Zoologist (2022) 42 (2): 164–181.
Published: 09 May 2022
.... An extraordinary 84% of their known sites had been burnt, with 34% burnt at high-extreme severity, 50% burnt at low-moderate severity and only 16% unburnt. Combining these figures with the Greater Glider declines recorded on our transects, we estimate that the Greater Glider population of the World Heritage Area...
Journal Articles
Australian Zoologist (2014) 31 (1): 240–253.
Published: 17 March 2014
... in the state was estimated at 85 400. These results vary substantially from recent estimations which placed the size of the New South Wales population at one million animals. Black Flying-foxes occupied seven camps at the time of the count and their abundance was estimated at 72 500. Periods of concentration...
Journal Articles
Australian Zoologist (2021) 42 (1): 95–110.
Published: 04 August 2021
... section of the reserve and the population was estimated at 80–90 individuals at that time. A subsequent cage-trapping study in 2004 captured four individuals in the southern section of the reserve, but further cage- and camera-trapping surveys in 2009 and 2012 failed to detect any individuals. Additional...