Search Results for period

...Michael J. Murphy ABSTRACT The Pilliga Forest is one of the largest surviving woodland remnants on the New South Wales western slopes in inland eastern Australia. Collation of personal observations by a resident herpetologist working in the Pilliga Forest over a 12-year period identified 18 frog...

... 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...

...Alistair Glen; Jeff Short The sheep grazing industry has been an economic mainstay of New South Wales from the early period of European settlement. The dingo quickly established itself as a predator of sheep and a pest of the pastoral industry. In the latter decades of the nineteenth century...

...Greg Gordon; Frances Hrdina The Queensland Koala Phascolarctos cinereus and possum harvests were regulated from 1906-1927 and 1906-1936, respectively. Before that, there was an uncontrolled harvest. Historical data from the harvest period were analysed to gain information on P. cinereus and possum...

... were of two eggs, none of which produced two fledglings. The incubation period was 29 days, similar to that of other species of black cockatoo with similar body mass. The nestling period was 80-84 days, nearly 17% longer than the similarly-sized Carnaby's Cockatoo C. latirostris . The ages of nestling...

... Greater Glider population at Seven Mile Beach National Park (NP) is isolated as a consequence of clearing for agriculture but the population did not decline during the survey period. Greater Glider populations in Conjola NP, the Jervis Bay area, Meroo NP and Murramarang NP suffered severe declines...

... outline three case-studies of long-term research on forest bats using different techniques. These involve annual monitoring of populations at cave roosts, periodic monitoring of forest bat activity with ultrasonic detectors and advanced mark-recapture modelling of annual banding data to describe...

... that such aggression could affect the abundance and distribution of small woodland birds, however, appears only in the period after World War II. The changing ecological role of Noisy Miners, and the associated changes in cultural attitude to the species, appear linked to the loss, fragmentation and degradation...

... (Mitchell Grass, Spinifex, Springs, Ironbark, Gidgee and Escarpment) and over five different survey periods (spanning October 2018 to October 2020). This study reports on a species assemblage typical of Northern Australia savanna environments, with some distinction between key habitats, namely grassland...

... was taken by a Lace Monitor ( Varanus varius ) on August 29. A camera placed at the nest when discovered was active for the entire monitoring period. Thirteen sound recordings (in 6h periods) were made at the nest between July 16 and August 28 inclusive. The literature on vocalisations by the female...

... transmission. We summarise a decade of research conducted to understand one such interface, the wild-domestic dog interface at one site in northern Australia, for the purposes of exploring the impact of one specific disease, rabies. Over a period of 10 years, free-roaming domestic dogs and wild dogs...

... outbreaks, or when to undertake management operations that add to the overall carcass biomass in ecosystems. In this paper, we focus on the Australian Alps and highlight results from recent studies to show that carcasses persist in this bioregion for long periods in winter when insects are less active. We...

... for most species when multiple subplots were sampled for a 2-week period. Power analyses revealed trade-offs between sampling effort (number of sites) and duration (number of visits) required to detect a trend. Only a modest investment was needed to monitor widespread species that are moderately detectable...

... prior to and post significant rainfall events. Following this, top down regulation of fox populations during dry periods at sites where dingoes are retained may enable higher and more stable “baseline” densities of small vertebrates, from which a larger and more rapid rate of increase of these prey...

... Upgrade in eastern NSW automated cameras were used to monitor a number of underpasses. The first monitoring period (autumn 2018) recorded photographic evidence of a Spotted-tailed Quoll Dasyurus maculatus using a combined underpass on day 61 of a 63-night monitoring period. To our knowledge...

...Peter R Mawson; Rick Dawson; Denis A Saunders ABSTRACT Barn Owls Tyto alba were recorded breeding in natural nest hollows in a Wandoo Eucalyptus wandoo woodland in the northern wheatbelt of Western Australia infrequently and at low densities during the period 1969-2022. During a record cropping...

...Jesse Campbell ABSTRACT On a remote sandstone outcrop within the Royal National Park, New South Wales, numerous instances were documented involving the aggregation of Brown Tree Snakes Boiga irregularis . Over the period from 2018 to 2023, a total of 8 visits to the site were logged, revealing 3...