Browsing by Author "Duggan, Ian C."
Co-authors for Ian C. Duggan
Supervised by Ian C. Duggan
Showing up to 5 theses - most recently added to Research Commons first.
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Dietary overlap between the non-native mosquitofish (Gambusia affinis) and native common bully (Gobiomorphus cotidianus): Evidence for interspecific competition?
(The University of Waikato, 2023)Since their establishment in New Zealand in the 1930s, the globally invasive western mosquitofish (Gambusia affinis) has become widespread throughout lowland freshwaters, primarily in the North Island. Despite co-occurring ... -
The potential for waterbirds to act as a vector for zooplankton dispersal in the North Island, New Zealand
(The University of Waikato, 2022)Zooplankton are essential components of freshwater ecosystems by controlling algal growth and sustaining higher trophic levels. Freshwater zooplankton are geographically isolated and are incapable of active dispersal to ... -
Responses of zooplankton assemblages to spatio-temporal variability in environmental conditions of brackish coastal ponds, Auckland, New Zealand
(The University of Waikato, 2022)Brackish waters, including estuaries, lagoons and coastal ponds, all experience fluctuations in their physicochemical properties, particularly their salt concentrations, due to the mixing of marine and freshwater inflows. ... -
Long-term zooplankton dynamics in Lake Taupō: 2000-2020
(The University of Waikato, 2021)Long-term monitoring is essential for distinguishing between natural and anthropogenically induced changes within ecosystems, particularly those with high degrees of natural fluctuation. In order to gain further understanding ... -
Interactions between freshwater mussels and non-native species
(The University of Waikato, 2020)Biological invasions contribute to ecosystem change globally, with a disproportionate and intensified impact in freshwaters. This process is exacerbated in modified systems such as hydrogeneration reservoirs that promote ...