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Investigating The Combined Role Of The Introduced Honeybee (Apis Mellifera) And Magnet Plants On The Pollination Of Both Native And Exotic Plants In Australian Ecosystems, Amy-Marie Gilpin
University of Wollongong Thesis Collection 2017+
In Australia, the effects of introduced mass flowering species and their interaction with exotic pollinators, such as the European honeybee (Apis mellifera), on the pollination systems of native plants have been largely unstudied. In the northern hemisphere, resource-rich plants have been shown to have the potential to draw pollinators from the surrounding matrix, resulting in them acting as ‘magnet plants’. Such magnets may comprise of an individual plant, a cluster of plants or entire population of plants. Two possible outcomes exist for any co-flowering species that offer contrasting levels of floral reward. Firstly, spill-over effects may lead to increases in …
The Context-Dependency Of Predator-Prey And Competitive Interactions Between The Invasive Eastern Mosquitofish, Gambusia Holbrooki, And Native Australian Freshwater Fauna, Laura Kate Lopez
University of Wollongong Thesis Collection 2017+
Invasive species can exert significant deleterious effects on native individuals, populations and communities. Freshwater ecosystems are especially vulnerable to invasion, due to their close association with anthropogenic activity and limited biogeographic connectivity. Understanding the behavioural mechanisms which underlie predator-prey and competitive interactions between invasive and native species is critical when predicting the impacts of invasive species on freshwater habitats. However, due to the predominance of indirect experimental methods, these mechanisms are seldom identified. Furthermore, behavioural mechanisms, and subsequently, invasive-native species interactions may be mediated by environmental and individual-level context. Here I used both direct and indirect methods to determine whether …