Publications by authors named "D C Watchorn"

Camera traps are widely used in wildlife research and monitoring, so it is imperative to understand their strengths, limitations, and potential for increasing impact. We investigated a decade of use of wildlife cameras (2012-2022) with a case study on Australian terrestrial vertebrates using a multifaceted approach. We (i) synthesised information from a literature review; (ii) conducted an online questionnaire of 132 professionals; (iii) hosted an in-person workshop of 28 leading experts representing academia, non-governmental organisations (NGOs), and government; and (iv) mapped camera trap usage based on all sources.

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Fire shapes animal communities by altering resource availability and species interactions, including between predators and prey. In Australia, there is particular concern that two highly damaging invasive predators, the feral cat () and European red fox (), increase their activity in recently burnt areas and exert greater predation pressure on the native prey due to their increased exposure. We tested how prescribed fire occurrence and extent, along with fire history, vegetation, topography, and distance to anthropogenic features (towns and farms), affected the activity (detection frequency) of cats, foxes, and the native mammal community in south-eastern Australia.

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Article Synopsis
  • Deserts host diverse ecosystems and are home to many at-risk species, making the management of disturbances like fire crucial for conservation efforts.
  • This study analyzed the effects of varying size, severity, and patchiness of prescribed burns on small mammals and reptiles using a control-impact approach across 20 sites.
  • It found that only a few species significantly responded to fire, suggesting a threshold effect where larger and more intense burns can positively impact certain species while minimizing long-term negative effects on desert wildlife, provided unburned habitats are preserved.
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While almost half of all mammal species are rodents, records of albinism in free-ranging rodents are very rare. Australia has a large and diverse assemblage of native rodent species, but there are no records of free-ranging albino rodents in the published literature. In this study, we aim to improve our understanding of the occurrence of albinism in Australian rodent species by collating contemporary and historic records of this condition and providing an estimate of its frequency.

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Introduction: Molecular antibodies (mAb) targeting inflammatory mediators are effective in T2-high asthma. The recent approval of Tezepelumab presents a novel mAb therapeutic option for those with T2-low asthma.

Areas Covered: We discuss a number of clinical problems pertinent to severe asthma that are less responsive to current therapies, such as persistent airflow obstruction and airway hyperresponsiveness.

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