Browsing by Author "Silvester, Warwick B."

• Acetylene reduction associated with zostera novazelandica Setch. and Spartina alterniflora Loisel., in Whangateau harbour, North Island, New Zealand 

  Hicks, Brendan J.; Silvester, Warwick B. (1990)

  Nitrogen fixation (acetylene reduction) was investigated in Zostera novazelandica Setch. and Spartina alterniflora Loisel., in the North Island of New Zealand. Moderate rates of acetylene reduction were found in sediments ...

  

• Colonization dynamics and facilitative impacts of nitrogen-fixing shrub in primary succession 

  Walker, Lawrence R.; Clarkson, Bruce D.; Silvester, Warwick B.; Clarkson, Beverley R. (Opulus Press AB, 2003-04)

  Whether nitrogen-fixing plants facilitate or inhibit species change in primary succession is best resolved by examining their impacts throughout the plant's entire life cycle from arrival to senescence. We experimentally ...

  

• Effect of Coriaria arborea on seed banks during primary succession on Mt Tarawera, New Zealand 

  Clarkson, Beverley R.; Walker, Lawrence R.; Clarkson, Bruce D.; Silvester, Warwick B. (SIR Publishing, 2002-12-01)

  An experiment was conducted over two years to investigate the effect of Coriaria arborea, a native nitrogen-fixing shrub, on soil seed banks at sites representing a post-volcanic successional sequence on Mt Tarawera, New ...

  

• Nitrogen fixation in the New Zealand mangrove (Avicennia marina (Forsk.) Vierh. var. resinifera (Forst f.) Bakh.) 

  Hicks, Brendan J.; Silvester, Warwick B. (American Society for Microbiology, 1985)

  Nitrogenase activity in mangrove forests at two locations in the North Island, New Zealand, was measured by acetylene reduction and 15N2 uptake. Nitrogenase activity (C2H2 reduction) in surface sediments 0 to 10 mm deep ...

• Nitrogen-15 isotope enrichment in benthic boundary layer gases of a stratified eutrophic iron and manganese rich lake 

  Pearson, Lisa Kyle; Hendy, Chris H.; Hamilton, David P.; Silvester, Warwick B. (Springer, 2012)

  The applicability of the natural abundance of nitrogen gas isotope ratios was used to indicate the spatial distribution of nitrogen transformations in the water column and sediment pore waters of Lake Ngapouri, a small ...

• Photosynthesis and transpiration in a dry-land Pinus radiata forest 

  Walcroft, Adrian S. (The University of Waikato, 1998)

  This thesis investigates biotic and abiotic regulation of photosynthesis and transpiration at the leaf and canopy scales in a dry-land Pinus radiata D. Don forest by combining gas exchange measurements with biophysical ...

  

• Succession of subalpine vegetation to Libocedrus bidwillii forest on a landslide-initiated soil chronosequence, Mount Taranaki, New Zealand 

  Boase, Murray Robert (The University of Waikato, 1988)

  Aspects of succession of subalpine vegetation on Mt Taranaki were examined in a vegetation chronosequence, initiated by four landslides on the same sideslope in 1333-1343 A.D., 1625 A.D., 1811-1817 A.D. and 1968-1971 A.D ...

  

• The effects of intensive grazing on nitrogen fixation by white clover 

  Menneer, John Christopher (The University of Waikato, 2003)

  The effects of the grazing animal (treading, defoliation, and excreta) on N2 fixation were investigated in an intensively managed legume-based dairy pasture in the Waikato region, North Island, New Zealand. Two major ...

  

• Carbohydrate storage and remobilisation: The mechanisms involved in woody stem tissue of apple trees 

  McQueen, Joanna C. (The University of Waikato, 2003)

  This thesis investigated the storage and remobilisation of carbohydrate reserves in perennial woody stem tissue, using one-year-old apple stems. In this study, the theories developed in herbaceous annual species were applied ...

  

• Restiad bog development and nutrient dynamics of the dominant species 

  Clarkson, Beverley R. (The University of Waikato, 2005)

  Vegetation and peat in lowland restiad (dominated by Restionaceae) raised bogs on North Island (Waikato region) and Chatham Island, New Zealand, were sampled to investigate the main environmental controls of pattern and ...

  

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