WorldCat Identities

Bradshaw, Corey J. A.

Overview
Works: 12 works in 31 publications in 1 language and 481 library holdings
Roles: Author, Editor
Publication Timeline
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Most widely held works by Corey J. A Bradshaw
Killing the koala and poisoning the prairie : Australia, America, and the environment by Corey J. A Bradshaw( Book )

7 editions published in 2015 in English and held by 294 WorldCat member libraries worldwide

Two scientists compare the environmental and social factors that have led to environmental degradation on opposite sides of the earth
The effective scientist : a handy guide to a successful academic career by Corey J. A Bradshaw( Book )

9 editions published in 2018 in English and held by 89 WorldCat member libraries worldwide

A how-to guide to mastering the skills you need to navigate the murky waters of an academic science career effectively
Offshore energy and marine spatial planning by Katherine L Yates( )

5 editions published in 2018 in English and held by 83 WorldCat member libraries worldwide

"Offshore energy generation is a rapidly growing sector, competing for space in an already busy seascape. This book brings together the ecological, economic and social implications of the spatial conflict this growth entails"--
An assessment of the effects of petroleum exploration on woodland caribou (Rangifer tarandus caribou) in northeastern Alberta by Corey J. A Bradshaw( )

2 editions published between 1994 and 1995 in English and held by 5 WorldCat member libraries worldwide

Spencer Gulf research initative : development of an ecosystem model for fisheries and aquaculture by Bronwyn Gillanders( Book )

1 edition published in 2015 in English and held by 3 WorldCat member libraries worldwide

Turning pests into profits : introduced buffalo provide multiple benefits to indigenous people of northern Australia by Neil Collier( )

1 edition published in 2011 in English and held by 1 WorldCat member library worldwide

Dingoes can help conserve wildlife and our methods can tell( )

1 edition published in 2015 in English and held by 1 WorldCat member library worldwide

Management of apex predators is among the most controversial wildlife management issues globally. In Australia, some ecologists have advocated using the dingo, Canis dingo, as a tool for conservation management, due to evidence that they suppress invasive mesopredators. Hayward & Marlow (Journal of Applied Ecology, 51, 2014 and 835) questioned the capacity of dingoes to provide benefits to native biodiversity due to their inability to eradicate foxes and cats. They also argued that indices of abundance commonly used in studies of mesopredator release by dingoes (namely, track-based indices) invalidate the conclusions of the studies. Hayward & Marlow caution conservation practitioners against incorporating dingoes into conservation programmes. Counter to their claims, we summarise research showing that the suppression of invasive mesopredators (cf. eradication) can enhance populations of native species and is therefore a meaningful conservation objective. We highlight literature supporting the hypothesis that dingoes suppress mesopredator abundance and activity, which in turn benefits native biodiversity. We show that Hayward & Marlow overlook many studies of carnivores that show track indices capture a large amount of the variation in the density of medium- and large-sized carnivores. Synthesis and applications. Practitioners cannot afford to wait to act given the perilous state of Australia's mammal species, and we argue that the evidence is sufficiently strong to justify managing dingoes for biodiversity conservation
An efficient protocol for the global sensitivity analysis of stochastic ecological models( )

1 edition published in 2016 in English and held by 1 WorldCat member library worldwide

Abstract: Stochastic simulation models requiring many input parameters are widely used to inform the management of ecological systems. The interpretation of complex models is aided by global sensitivity analysis, using simulations for distinct parameter sets sampled from multidimensional space. Ecologists typically analyze such output using an "emulator"; that is, a statistical model used to approximate the relationship between parameter inputs and simulation outputs and to derive sensitivity measures. However, it is typical for ad hoc decisions to be made regarding: (1) trading off the number of parameter samples against the number of simulation iterations run per sample, (2) determining whether parameter sampling is sufficient, and (3) selecting an appropriate emulator. To evaluate these choices, we coupled different sensitivity‐analysis designs and emulators for a stochastic, 20‐parameter model that simulated the re‐introduction of a threatened species subject to predation and disease, and then validated the emulators against new output generated from the simulation model. Our results lead to the following sensitivity analysis‐protocol for stochastic ecological models. (1) Run a single simulation iteration per parameter sample generated, even if the focal response is a probabilistic outcome, while sampling extensively across the parameter space. In contrast to designs that invested in many model iterations (tens to thousands) per parameter sample, this approach allowed emulators to capture the input‐output relationship of the simulation model more accurately and also to produce sensitivity measures that were robust to variation inherent in the parameter‐sampling stage. (2) Confirm that parameter sampling is sufficient, by emulating subsamples of the sensitivity‐analysis output. As the subsample size is increased, the cross‐validatory performance of the emulator and sensitivity measures derived from it should exhibit asymptotic behavior. This approach can also be used to compare candidate emulators and select an appropriate interaction depth. (3) If required, conduct further simulations for additional parameter samples, and then report sensitivity measures and illustrate key response curves using the selected emulator. This protocol will generate robust sensitivity measures and facilitate the interpretation of complex ecological models, while minimizing simulation effort
Distribution and abundance of Glyphis and sawfishes in northern Australia and their potential interactions with commercial fisheries : final report, May 2008 by Iain Craig Field( Book )

1 edition published in 2008 in English and held by 1 WorldCat member library worldwide

The distributions of Glyphis and sawfishes are poorly known around most of the coast of the Northern Territory (NT). Previous studies have only found Glyphis in a few of the freshwater habitats around northern Australia and as such have been considered extremely rare. Our study has expanded what is known of the distribution of Glyphis and shown that these species may be more abundant than previously thought. Three species of sawfish (narrow, green and dwarf sawfish) were also found across large areas of the Northern Territory. The distribution of freshwater sawfish remains poorly understood. The analysis of different catch records from NT Fisheries and survey data indicate that a standard reporting and logbook scheme should be adopted by NT Fisheries that interact with these Threatened, Endangered and Protected (TEP) species. Of these, the NT Offshore Net and Line (NTONL) fishery provides the greatest level of detail in logbooks (catch and TEP reporting) and allows for species-specific estimates of catch. In addition, observer coverage is essential to verify catch records and collect biological information for these data-deficient species. We suggest that the reporting requirements for this fishery be adopted for all commercial fisheries in the Northern Territory. Local-scale information from catch records of TEP species and observer programmes has added to our knowledge of distributions identified from TEP catch and observer data. Furthermore, the presence of Glyphis garricki in the Daly River has been confirmed by our independent surveys. Spatial and temporal patterns in abundance of these species, however, are still unclear. The NT Barramundi Fishery (NTBarr) has the greatest interactions with these species: they represent about 12 % of the elasmobranch bycatch compared to only ~ 0.2 % of the total shark catch of the NTONL fishery. This may represent a greater local abundance of these globally threatened species inshore, especially compared to other Glyphis and sawfishes populations in the region, but the biological consequence of this interaction is unclear and requires further investigation
Ecological and economic benefits to cattle rangelands of restoring an apex predator( )

1 edition published in 2014 in English and held by 1 WorldCat member library worldwide

The conservation of terrestrial carnivores is hampered by economic conflicts between predation and livestock production. The dingo Canis dingo is the top predator in Australia's terrestrial ecosystems but its abundance is controlled because it preys on livestock. Dingo control (poisoning, shooting) is associated with increased densities of wild herbivores, which can lead to reduced cattle condition and fertility through competition for pasture. We investigated whether the restoration of dingoes might provide a net benefit for rangeland vegetation and the profit margins of cattle pastoralists. We developed a dynamic, multi-species metamodel to represent the trophic linkages and economics of a rangeland cattle enterprise. To estimate the strength of dingo-mediated trophic cascades, we underpinned the metamodel with a detailed simulation of pasture growth, grazing pressure and cattle live-weight gain. An economic model that calculated the costs and revenues associated with maintaining the cattle herd was used to examine trade-offs between livestock density, kangaroo abundance, calf losses and dingo control. We simulated the effects of dingo abundance on rangeland ecology (pasture biomass, kangaroo density) and enterprise performance (cattle live-weight gain, gross margin). Assuming a typical stocking density for semi-arid rangelands, we estimated that kangaroo control by an unbaited dingo population would increase pasture biomass by 53 kg ha−1, improve gross margins by $0·83 ha−1 and reduce inter-annual variability in profits. The increase in pasture biomass due to dingoes was greatest at low stocking densities (that permitted high kangaroo abundance in the absence of predation), while improvement in profits was strongest at intermediate stocking densities (when cattle density was high enough to take advantage of the additional pasture biomass). At high stocking densities, the abundance of kangaroos was low, so if dingo abundance exceeded that required to control kangaroos, some dingo baiting could produce small economic gains. Synthesis and applications. There is little incentive for pastoralists to reduce livestock densities in mixed wildlife-livestock systems unless wildlife grazing can be controlled. Our results demonstrate that top-down herbivore control by dingoes should allow cattle pastoralists to profit from conservative stocking densities while reducing the risk of pasture over-utilization
 
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Alternative Names
Bradshaw, Corey James Alexander, 1970-

Languages
English (31)