https://nova.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 Identifying a limiting factor in the population dynamics of a threatened amphibian: The influence of extended female maturation on operational sex ratio https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:46003 Thu 27 Jul 2023 15:13:07 AEST ]]> Wetland restoration for the threatened green and golden bell frog (litoria aurea): development of a breeding habitat designed to passively manage chytrid-induced amphibian disease and exotic fish https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:40479 Thu 14 Jul 2022 08:42:35 AEST ]]> The effect of salt dosing for chytrid mitigation on tadpoles of a threatened frog, Litoria aurea https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:50737 Thu 03 Aug 2023 16:36:36 AEST ]]> Susceptibility to disease varies with ontogeny and immunocompetence in a threatened amphibian https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:30290 Batrachochytrium dendrobatidis (Bd) infection has led to the decline of many amphibian species. Despite increasing knowledge on how Bd varies in its effects among species, little is known on the interaction between susceptibility and development within host species. We compared the ontogenetic susceptibility of post-metamorphic green and golden bell frogs Litoria aurea to chytridiomycosis by simultaneously measuring three host-pathogen responses as indicators of the development of the fungus—infection load, survival rate, and host immunocompetence—following Bd exposure in three life stages (recently metamorphosed juveniles, subadults, adults) over 95 days. Frogs exposed to Bd as recently metamorphosed juveniles acquired higher infection loads and experienced lower immune function and lower survivorship than subadults and adults, indicating an ontogenetic decline in chytridiomycosis susceptibility. By corresponding with an intrinsic developmental maturation in immunocompetence seen in uninfected frogs, we suggest these developmental changes in host susceptibility in L. aurea may be immune mediated. Consequently, the physiological relationship between ontogeny and immunity may affect host population structure and demography through variation in life stage survival, and understanding this can shape management targets for effective amphibian conservation.]]> Sat 24 Mar 2018 07:33:34 AEDT ]]> Investigating environmental stressors to mitigate chytridiomycosis in the environment of threatened amphibians https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:32750 Mon 23 Sep 2019 13:16:28 AEST ]]> A refuge for amphibian reintroduction - manipulating salinity in created habitat for a chytrid-susceptible model species, Litoria aurea (green and golden bell frog) https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:32747 Mon 23 Sep 2019 11:26:57 AEST ]]> Elevated salinity blocks pathogen transmission and improves host survival from the global amphibian chytrid pandemic: Implications for translocations https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:44520 Mon 17 Oct 2022 08:35:24 AEDT ]]>