https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 Reclamation of tidal flats and shorebird declines in Saemangeum and elsewhere in the Republic of Korea https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:22932 Wed 11 Apr 2018 16:16:56 AEST ]]> Reclamation of tidal flats and shorebird declines in Saemangeum and elsewhere in the Republic of Korea https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:24922 Calidris tenuirostris) during both northward and southward migration. Construction of a 33-km long sea-wall was completed in April 2006. We show that shorebird numbers at Saemangeum and two adjacent wetlands decreased by 130000 during northward migration in the next two years and that all species have declined at Saemangeum since completion of the sea-wall. Great Knots were among the most rapidly affected species. Fewer than 5000 shorebirds were recorded at Saemangeum during northward migration in 2014. We found no evidence to suggest that most shorebirds of any species displaced from Saemangeum successfully relocated to other sites in the ROK. Instead, by 2011-13 nearly all species had declined substantially in the ROK since previous national surveys in 1998 and 2008, especially at more heavily reclaimed sites. It is likely that these declines were driven by increased mortality rather than movement to alternate staging sites given that other studies have shown concurrent declines in numbers and survival on the non-breeding grounds. This is the first study in the East Asian-Australasian Flyway to confirm declines of shorebirds at a range of geographical scales following a single reclamation project. The results indicate that if migratory shorebirds are displaced from major staging sites by reclamation they are probably unable to relocate successfully to alternate sites.]]> Wed 11 Apr 2018 10:40:50 AEST ]]> Breeding success and its correlates in native versus invasive secondary cavity-nesting birds https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:49318 Thu 11 May 2023 14:53:07 AEST ]]> Relative levels of food aggression displayed by Common Mynas when foraging with other bird species in suburbia https://ogma.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 ]]>