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Full-Text Articles in Life Sciences

Studies On The Ecology Of The Endangered Camaenid Land Snail Thersites Mitchellae (Cox, 1864), Jonathan Leslie Parkyn Jan 2014

Studies On The Ecology Of The Endangered Camaenid Land Snail Thersites Mitchellae (Cox, 1864), Jonathan Leslie Parkyn

Theses

Many Australian land snail species are assumed to have declined in distribution and abundance, but there are few quantitative data available to assess their conservation status. Thersites mitchellae (Cox, 1864) (Camaenidae) is listed as endangered (category ENC2a) on the IUCN 1997 Red List of Threatened Species. Population parameters such as abundance, probability of survival, and probability of site occupancy were estimated. The methods take detection probability into account and allow for the inclusion of sampling, habitat, and individual animal covariates. These models and techniques offer considerable scope for application to land snail conservation particularly for species at risk of extinction.


Migratory Patterns And Behaviour Of Humpback Whales (Megaptera Novaeangliae) Along The Highly Urbanised Gold Coast Environment, Silje Vindenes Jan 2014

Migratory Patterns And Behaviour Of Humpback Whales (Megaptera Novaeangliae) Along The Highly Urbanised Gold Coast Environment, Silje Vindenes

Theses

A whale watch industry vessel was utilised to support research on the migratory patterns and behaviour of humpback whales in the Gold Coast bay, southern Queensland, Australia. Large numbers of whales use the bay as a temporary aggregation area and 1063 pods were recorded during 2008-2012, with 641 individual whales identified. Study data provided important information on pod composition, behaviour and migratory patterns of these whales. These baseline data can be used to improve management of whales in the urbanised coastal waters in the Gold Coast bay to reduce environmental pressures on these whales as their population continues to grow.