Now showing items 1-5 of 14

  • Biomass estimation of invasive fish

    Hicks, Brendan J.; Brijs, Jeroen; Daniel, Adam Joshua; Morgan, Dai K.J.; Ling, Nicholas (Lake Ecosystem Restoration New Zealand (LERNZ) & Department of Conservation, 2015)
    Invasive fish have a variety of effects on indigenous fish communities and freshwater ecosystems generally, and the magnitude of these effects is partly dependent on invasive fish biomass. For example, a koi carp biomass ...
  • Can redirected aggression explain interspecific attacks by Australian magpies on other birds?

    Morgan, Dai K.J.; Waas, Joseph R.; Innes, John G. (Brill, 2007)
    Attacks by participants of conflicts against a third party are referred to as redirected aggression. Usually the third party is a conspecific — few documented cases of redirected aggression against other species exist. The ...
  • Comparing plasma and faecal measures of steroid hormones in Adelie penguins Pygoscelis adeliae

    Ninnes, Calum Edward; Waas, Joseph R.; Ling, Nicholas; Nakagawa, Shinichi; Banks, Jonathan C.; Bell, Dudley G.; Bright, A.; Carey, P.W.; Chandler, J.; Hudson, Q.J.; Ingram, J.R.; Lyall, K.; Morgan, Dai K.J.; Stevens, Mark I.; Wallace, J.; Möstl, E. (Springer, 2010)
    Physiological measurements of both stress and sex hormones are often used to estimate the consequences of natural or human-induced change in ecological studies of various animals. Different methods of hormone measurement ...
  • Costs and effectiveness of different methods for capturing invasive fish

    Hicks, Brendan J.; Daniel, Adam Joshua; Ling, Nicholas; Morgan, Dai K.J.; Gauthier, Stephane (Lake Ecosystem Restoration New Zealand (LERNZ) & Department of Conservation, 2015)
    Comparisons of the effectiveness of different fishing techniques in non-wadeable habitats give insights into the relative abundance of invasive fish and native fish, which is important to provide evidence for changes in ...
  • Do heterospecific size and demeanour influence visitation behaviour of birds at urban foraging patches?

    Borowske, Alyssa; Morgan, Dai K.J.; Waas, Joseph R. (Springer, 2011)
    We compared the feeding behaviour of garden birds in the presence of four heterospecific decoy species at suburban feeding stations to assess the relative importance of body size (large vs. small) and demeanour (high vs. ...