Population recovery following decline in an endangered stream-breeding frog (Mixophyes fleayi) from subtropical Australia.

Amphibians have undergone dramatic declines and extinctions worldwide. Prominent among these have been the stream-breeding frogs in the rainforests of eastern Australia. The amphibian chytrid fungus Batrachochytrium dendrobatidis (Bd) has been postulated as the primary cause of these declines. We conducted a capture-mark-recapture study over a 7-year period on the endangered Fleay's barred frog (Mixophyes fleayi) at two independent streams (30 km apart) in order to assess the stability of these populations. This species had undergone a severe decline across its narrow geographic range. Mark-recapture modelling showed that the number of individuals increased 3-10 fold along stream transects over this period. Frog detection probabilities were frequently above 50% but declined as the populations increased. Adult survival was important to overall population persistence in light of low recruitment events, suggesting that longevity may be a key factor in this recovery. One male and female were present in the capture record for >6 years. This study provides an unambiguous example of population recovery in the presence of Bd.

Tooty Fruity Vegie: an obesity prevention intervention evaluation in Australian preschools.

ISSUES ADDRESSED: This paper presents the findings from a cluster randomised controlled evaluation of a preschool-based intervention (children aged 3-6 years), on the North Coast of NSW, which aimed to decrease overweight and obesity prevalence among children by improving fundamental movement skills (FMS), increasing fruit and vegetable intake and decreasing unhealthy food consumption. METHODS: The Tooty Fruity Vegie in Preschools program was implemented in 18 preschools for 10 months during 2006 and 2007. It included nutrition and physical activity strategies. Pre and post intervention evaluation compared intervention and control children and was conducted at the beginning and end of each year. It included FMS testing, lunch box audits and anthropometric measures of children as well as parents' surveys regarding children's food intake, physical activity and sedentary behaviours. RESULTS: In comparison to controls, children in intervention preschools significantly improved movement skills (14.79 units, p<0.001), had more fruit and vegetable serves (0.63 serves, p=0.001) and were less likely to have unhealthy food items (p<0.001) in their lunch boxes following the intervention. There was also a significant difference in waist circumference growth (-0.80 cm, p=0.002) and a reduction of BMI Z scores (-0.15, p=0.022). CONCLUSIONS: The 10-month intervention in preschools produced significant changes in children's food intake, movement skills and indicators of weight status.