https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:35503 Wed 19 Aug 2020 11:21:51 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:48052 Wed 13 Mar 2024 12:12:42 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:53680 10-fold mean increase in detection rates of cats by 5 years after the loss of V. panoptes, reflecting relative increases of 3.3–8.7 individual cats per site. Conclusions: Although some unknown factor may have caused an increase in cats, their similar trophic position and niche to V. panoptes suggests that toads facilitated cats by effectively removing the lizards from the animal community. This interaction likely reflects one type of invasional meltdown, whereby a non-native species (cane toad) facilitated any aspect of another’s (feral cat) invasion (e.g. survival, reproduction, resource acquisition), but the latter has no detected influence on the former (+/0 interaction). Implications: Because both invaders cause declines in animal populations and are difficult to control, the potentially synergistic tandem of cane toads and feral cats could have chronic, irreversible effects on animal communities.]]> Wed 10 Jan 2024 10:20:29 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:53462 Wed 06 Mar 2024 14:42:48 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:16804 Tue 24 Aug 2021 13:58:53 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:49026 Thu 27 Jul 2023 15:40:16 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:49318 Thu 11 May 2023 14:53:07 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:7025 Sat 24 Mar 2018 08:37:55 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:17479 Sat 24 Mar 2018 08:04:10 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:20636 Sat 24 Mar 2018 07:55:47 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:21761 Sturnus tristis) as a potential explanation for their invasive success, and quantified the effect of this behaviour on other birds. Common Mynas did not display significantly more aggression than other species, and displayed significantly less aggression than native Australian Magpies (Cracticus tibicen). Furthermore, the presence of Common Mynas at a feeding resource had no greater effect on the abundance of heterospecific individuals than the presence of any other species. Presence of each species was negatively correlated with the presence of other species, that is all species were less likely to approach the feeding station if any other species was present there. Common Mynas also did not displace other birds at feeding sites any more frequently than three of the other four species, and less frequently than two other native species. Overall, the findings suggest that Common Mynas do not display more food-related aggression than other species in suburban habitats, suggesting that competitive aggression over food is not likely to be one of the behavioural traits leading to the success of Common Mynas in suburban habitats.]]> Sat 24 Mar 2018 07:53:07 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:34775 Mon 23 Sep 2019 13:09:55 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:45512 Mon 07 Nov 2022 11:08:00 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:41219 Fri 29 Jul 2022 09:46:33 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:40429 Rhinella marina) has decimated populations of a keystone predator, the yellow-spotted monitor (Varanus panoptes), causing trophic cascades in Australian animal communities. Paradoxically, some V. panoptes populations coexist with toads. Demonstrating patterns in heterogeneous population-level impacts could reveal mechanisms that mediate individual effects, and provide managers with the ability to predict future impacts and assist in population recovery. Aims: The aim of the present study was to search for spatial patterns of population resilience of V. panoptes to invasive cane toads. Methods: Published literature, unpublished data, reports and anecdotal information from trained herpetologists were used to test the emerging hypothesis that resilient predator populations are mainly coastal, whereas non-resilient populations are mostly inland. Key results: Post-toad invasion data from 23 V. panoptes populations supported the idea that toad impacts on V. panoptes were heterogeneous; roughly half the populations could be designated as resilient (n = 13) and half as non-resilient (n = 10). Resilient populations had longer times since toad invasion than did non-resilient populations (39 versus 9 years respectively), supporting the idea that some recovery can occur. Non-resilient populations were exclusively inland (n = 10), whereas resilient populations were split between inland (n = 5) and coastal (n = 8) populations. Resilient inland populations, however, were mainly confined to areas in which decades had passed since toad invasion. Conclusions: The findings suggest that coastal V. panoptes populations fare much better than inland populations when it comes to surviving invading cane toads. Implications: Unambiguous recovery of monitor populations remains undemonstrated and will require long-term population monitoring before and after toad invasion.]]> Fri 22 Jul 2022 14:30:26 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:48461 Fri 17 Mar 2023 12:07:42 AEDT ]]>