title: Foreword - Rotorua Lakes Symposium 2017

authors: Atkinson, Don

abstract: This was the Society’s 10th Symposium and was held at the Millennium Hotel, Rotorua on the 31St August and 1st September. It built on our 2015 Lake Weed and Wallabies Symposium and themed around eradication of catfish, the spread and now dominance of lake weeds and the requirement to control browsing animal pests causing erosion.

text: Foreword - Rotorua Lakes Symposium 2017 This was the Society’s 10th Symposium and was held at the Millennium Hotel, Rotorua on the 31St August and 1st September. It built on our 2015 Lake Weed and Wallabies Symposium and themed around eradication of catfish, the spread and now dominance of lake weeds and the requirement to control browsing animal pests causing erosion.

year: 2017

title: Surface elevation changes and sediment characteristics of intertidal surfaces undergoing mangrove expansion and mangrove removal, Waikaraka Estuary, Tauranga Harbour, New Zealand

authors: Stokes, Debra J.

subjects: New Zealand

abstract: Since the 1940s mangroves have expanded their areal coverage in many estuaries in the northern half of the North Island of New Zealand. The extent of mangrove colonization in Waikaraka Estuary, Tauranga Harbour, has been documented using photogrammetric analysis, and the impacts of subsequent mangrove removal are analysed. Surface elevation changes in response to mangrove removal are measured using RSETs (Rod Surface Elevation Table) and erosion pins, and sediment accumulation rates were calculated from sediment trap results. Temporal changes to surface sediment texture are analysed. Mangrove physiognomy is described from analysis of mean plant height, plant density and pneumatophore density. Plant heights reflect the shrubby growth form of mangroves growing toward their southern climatic limit, with mean plant heights under 1.5 m. Mangrove coverage has increased from approximately 16,000 m2 in 1943 to 115,000 m2 in 2003. Since May 2005, 9,600 m2 of mangrove vegetation has been removed from the estuary. For the monitoring period of March 2006 to March 2007, rates of surface elevation change in cleared areas ranged from - 9 mm to - 38 mm yr (mean -14 mm yr). Conversely, surface elevation under mangrove forest varied between sites, ranging from -5 mm to 14 mm yr (mean 3 mm yr). Results from RSETs and erosion pins and a coarsening of surface sediment texture at the cleared sites, is consistent with sediment release after mangrove removal.

text: Surface elevation changes and sediment characteristics of intertidal surfaces undergoing mangrove expansion and mangrove removal, Waikaraka Estuary, Tauranga Harbour, New Zealand Since the 1940s mangroves have expanded their areal coverage in many estuaries in the northern half of the North Island of New Zealand. The extent of mangrove colonization in Waikaraka Estuary, Tauranga Harbour, has been documented using photogrammetric analysis, and the impacts of subsequent mangrove removal are analysed. Surface elevation changes in response to mangrove removal are measured using RSETs (Rod Surface Elevation Table) and erosion pins, and sediment accumulation rates were calculated from sediment trap results. Temporal changes to surface sediment texture are analysed. Mangrove physiognomy is described from analysis of mean plant height, plant density and pneumatophore density. Plant heights reflect the shrubby growth form of mangroves growing toward their southern climatic limit, with mean plant heights under 1.5 m. Mangrove coverage has increased from approximately 16,000 m2 in 1943 to 115,000 m2 in 2003. Since May 2005, 9,600 m2 of mangrove vegetation has been removed from the estuary. For the monitoring period of March 2006 to March 2007, rates of surface elevation change in cleared areas ranged from - 9 mm to - 38 mm yr (mean -14 mm yr). Conversely, surface elevation under mangrove forest varied between sites, ranging from -5 mm to 14 mm yr (mean 3 mm yr). Results from RSETs and erosion pins and a coarsening of surface sediment texture at the cleared sites, is consistent with sediment release after mangrove removal.

year: 2009

title: Māori women’s perspectives of leadership and wellbeing

authors: Ruru, Stacey Mariu

subjects: Māori leadership

abstract: Within Aotearoa, New Zealand, Māori women are engaged in leadership roles in community and professional workplace settings, however little is known about how they maintain their wellbeing. This research sought to unravel how Māori women leaders maintain their wellbeing, while occupied in complex leadership roles. We report on the findings from semi-structured interviews, acknowledging kaupapa Māori theory and principles, with five Māori women leaders. Thematic analysis was used, and these themes related to five whakataukī (proverb) that provided overarching themes and directions relating to Māori women’s leadership and wellbeing. Each whakataukī describe unique aspects of leadership and wellbeing from a Māori worldview. Themes include humility, collectiveness, courage, future orientations and positivity. While the themes are housed in whakataukī, central to the success of these Māori women leaders was being connected to whānau (family) and friends, and being influenced by tamariki (children), tauira (students) and employees. These social connections made Māori women leaders strong and resilient to change and challenges.

text: Māori women’s perspectives of leadership and wellbeing Within Aotearoa, New Zealand, Māori women are engaged in leadership roles in community and professional workplace settings, however little is known about how they maintain their wellbeing. This research sought to unravel how Māori women leaders maintain their wellbeing, while occupied in complex leadership roles. We report on the findings from semi-structured interviews, acknowledging kaupapa Māori theory and principles, with five Māori women leaders. Thematic analysis was used, and these themes related to five whakataukī (proverb) that provided overarching themes and directions relating to Māori women’s leadership and wellbeing. Each whakataukī describe unique aspects of leadership and wellbeing from a Māori worldview. Themes include humility, collectiveness, courage, future orientations and positivity. While the themes are housed in whakataukī, central to the success of these Māori women leaders was being connected to whānau (family) and friends, and being influenced by tamariki (children), tauira (students) and employees. These social connections made Māori women leaders strong and resilient to change and challenges.

year: 2017