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, ...

• 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 ...

  

• Zooplankton communities in small Waikato lakes and ponds: are natural waters and farm dams the same? 

  Le Quesne, Kelly Sarah (The University of Waikato, 2019)

  Ponds have been identified as biodiversity ‘hotspots’ that play an important role in supporting and maintaining biodiversity. In freshwater ecosystems, zooplankton are an essential trophic link between algae and fish, and ...

  

• Community composition and distribution of macroinvertebrates on natural and artificial substrates in North Island lakes and ponds 

  Taitibe, Heather (The University of Waikato, 2019)

  Artificial structures in freshwater ecosystems are becoming increasingly common. The introduction of these structures in marine systems lead to changes in the physical structure and the biotic assemblages. Even though ...

  

• Evaluating the implications of recent filter-feeding Daphnia invasions for kākahi (Echyridella menziesii) 

  Pearson, Anita Alice Christina (The University of Waikato, 2019)

  Freshwater mussels function as key ecosystem engineers due to their highly efficient filter feeding and bioturbating abilities, which enhance water clarity and promote nutrient cycling. Although they play a crucial role ...

  

• Constructed treatment wetlands: Tools to attenuate diffuse agricultural pollution and enhance the biodiversity of eutrophic peat lake ecosystems 

  Eivers, Rebecca Sylvia (The University of Waikato, 2018)

  Agricultural land use is a major source of nitrogen (N), phosphorus (P) and suspended sediment (SS) to aquatic ecosystems. Elevated inputs of N, P and SS associated with agricultural expansion and intensification have led ...

  

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