Browsing by Author "Duggan, Ian C."

• Aquatic ecology of Lake Rotokare, Taranaki, and options for restoration 

  Hicks, Brendan J.; Bell, Dudley G.; Duggan, Ian C.; Wood, Susanna A.; Tempero, Grant Wayne (Environmental Research Institute, The University of Waikato, 2013)

  Lake Rotokare is a 17.8-ha natural lake in eastern Taranaki, located 12 km east of Eltham in the 230-ha Rotokare Scenic Reserve. In 2008, the Rotokare Scenic Reserve Trust completed construction of an 8.2-km predator proof ...

  

• Are botanical gardens a risk for zooplankton invasions? 

  Duggan, Ian C.; Duggan, Kathryn S. (SpringerLink, 2011)

  A number of zooplankton invasions have been linked with the movement of plants to botanical and other public gardens. Although most of these records are historical, several recent examples indicate that aquatic fauna may ...

• Are zooplankton invasions in constructed waters facilitated by simple communities? 

  Parkes, Samantha Maree; Duggan, Ian C. (Wiley-Blackwell, 2012)

  Aim Constructed water bodies (e.g. water supply and hydroelectricity dams, ornamental ponds) are invaded at faster rates than natural waters, but the mechanisms that lead to this pattern are uncertain. We aimed to determine ...

• Assessment of the water quality of ten Waikato lakes based on zooplankton community composition. CBER Contract Report No. 60 

  Duggan, Ian C. (Waikato Regional Council, 2007-05)

  Zooplankton communities were documented from ten Waikato lakes from net haul samples collected in late 2006 and from species hatched from diapausing eggs in sediments collected in early 2007. Lake trophic state was ...

  

• Can biotic resistance be utilized to reduce establishment rates of non-indigenous species in constructed waters? 

  Taylor, Claire Maree; Duggan, Ian C. (Springer, 2012)

  Understanding the mechanisms that facilitate establishment of non-indigenous species is imperative for devising techniques to reduce invasion rates. Passively dispersing non-indigenous organisms, including zooplankton, ...

• Dietary overlap between the non-native mosquitofish (Gambusia affinis) and native common bully (Gobiomorphus cotidianus): Evidence for interspecific competition? 

  Ember, Flavian (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 

  Jamieson, Kelly (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 

  Marshall, Gabrielle Millicent Jocelyn (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 

  Miles, Galilee (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 

  Moore, Thomas Peter (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 ...

  

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