Zobrazeno 1 - 10
of 412
pro vyhledávání: '"Christopher N Johnson"'
Autor:
Corey JA Bradshaw, Christopher N Johnson, John Llewelyn, Vera Weisbecker, Giovanni Strona, Frédérik Saltré
Publikováno v:
eLife, Vol 10 (2021)
The causes of Sahul’s megafauna extinctions remain uncertain, although several interacting factors were likely responsible. To examine the relative support for hypotheses regarding plausible ecological mechanisms underlying these extinctions, we co
Externí odkaz:
https://doaj.org/article/9b24111899c2438ab0f239006ea04542
Publikováno v:
PLoS ONE, Vol 15, Iss 3, p e0230216 (2020)
Observing animals directly in the field provides the most accurate understanding of animal behaviour and resource selection. However, making prolonged observation of undisturbed animals is difficult or impossible for many species. To overcome this pr
Externí odkaz:
https://doaj.org/article/e48c25dfc7264aa3a2d07d91d15bfafa
Autor:
Debby Ng, Scott Carver, Mukhiya Gotame, Dibesh Karmasharya, Dikpal Karmacharya, Saman Man Pradhan, Ajay Narsingh Rana, Christopher N Johnson
Publikováno v:
PLoS ONE, Vol 14, Iss 12, p e0220874 (2019)
Dogs are often commensal with human settlements. In areas where settlements are adjacent to wildlife habitat, the management of dogs can affect risk of spillover of disease to wildlife. We assess dog husbandry practices, and measure the prevalence of
Externí odkaz:
https://doaj.org/article/af4ad5a342c544868dcc70eb2de1be79
Autor:
Frédérik Saltré, Marta Rodríguez-Rey, Barry W. Brook, Christopher N Johnson, Chris S. M. Turney, John Alroy, Alan Cooper, Nicholas Beeton, Michael I. Bird, Damien A. Fordham, Richard Gillespie, Salvador Herrando-Pérez, Zenobia Jacobs, Gifford H. Miller, David Nogués-Bravo, Gavin J. Prideaux, Richard G. Roberts, Corey J. A. Bradshaw
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-7 (2016)
Global megafaunal extinctions took place in the late Quaternary, yet the relative impact of climate and humans in the faunal collapse is unclear. Here, the authors show that megafaunal extinctions in Australia were independent of climate variability
Externí odkaz:
https://doaj.org/article/b812af7d8f4d4ae7b09e12b8b25c4507
Publikováno v:
PLoS ONE, Vol 12, Iss 11, p e0188529 (2017)
Australia's native marsupial fauna has just two primarily flesh-eating 'hypercarnivores', the Tasmanian devil (Sarcophilus harrisii) and the spotted-tailed quoll (Dasyurus maculatus) which coexist only on the island of Tasmania. Devil populations are
Externí odkaz:
https://doaj.org/article/efc45e27f96444c69ab8271320f60365
Publikováno v:
PLoS ONE, Vol 11, Iss 3, p e0149749 (2016)
Parasitism has both direct and indirect effects on hosts. Indirect effects (such as behavioural changes) may be common, although are often poorly described. This study examined sarcoptic mange (caused by the mite Sarcoptes scabiei) in the common womb
Externí odkaz:
https://doaj.org/article/3db249174d594a16bbd81bf279395107
Autor:
Rosemary Hohnen, Katherine Tuft, Hugh W McGregor, Sarah Legge, Ian J Radford, Christopher N Johnson
Publikováno v:
PLoS ONE, Vol 11, Iss 9, p e0152520 (2016)
The domestic cat (Felis catus) is an invasive exotic in many locations around the world and is thought to be a key factor driving recent mammal declines across northern Australia. Many mammal species native to this region now persist only in areas wi
Externí odkaz:
https://doaj.org/article/27e21f2288564cefabf48ad4b82986ce
Autor:
Bronwyn A Fancourt, Brooke L Bateman, Jeremy VanDerWal, Stewart C Nicol, Clare E Hawkins, Menna E Jones, Christopher N Johnson
Publikováno v:
PLoS ONE, Vol 10, Iss 6, p e0129420 (2015)
To conserve a declining species we first need to diagnose the causes of decline. This is one of the most challenging tasks faced by conservation practitioners. In this study, we used temporally explicit species distribution models (SDMs) to test whet
Externí odkaz:
https://doaj.org/article/3f62dcce450849ed8ddce17653228a9e
Publikováno v:
PLoS ONE, Vol 10, Iss 8, p e0133915 (2015)
One of the key gaps in understanding the impacts of predation by small mammalian predators on prey is how habitat structure affects the hunting success of small predators, such as feral cats. These effects are poorly understood due to the difficulty
Externí odkaz:
https://doaj.org/article/1adda85d66cf42d29b01f79fbac81f78
Publikováno v:
PLoS ONE, Vol 9, Iss 10, p e109097 (2014)
Intensification of fires and grazing by large herbivores has caused population declines in small vertebrates in many ecosystems worldwide. Impacts are rarely direct, and usually appear driven via indirect pathways, such as changes to predator-prey dy
Externí odkaz:
https://doaj.org/article/6d22ff12d94d43879468343eb92f230e