title: Rerewhakaaitu Tephra, a land–sea marker for the Last Termination in New Zealand, with implications for global climate change

authors: Newnham, Rewi M.

subjects: New Zealand

abstract: The Rerewhakaaiutu Tephra erupted from Okataina Volcanic Centre, North Island, New Zealand, at 14,700±95 ¹⁴C yr BP (ca 17,600 cal yr BP) at a time of rapid re-organisation of Earth's climate system at the end of the Last Glacial (Termination I). It provides a distinctive isochron in a range of different environments in North Island and in adjacent South Pacific Ocean sediments. Terrestrial evidence, based on fluvial aggradation and downcutting relationships, loess accumulation rates, palaeovegetation patterns, and buried soil development and mineralogy, shows that marked amelioration of climate occurred shortly before the Rerewhakaaitu Tephra was deposited. Similarly, marine evidence from around this time shows major changes in accumulation rates of sediment and aeolian quartz and in the abundance of various marine organisms, while foraminiferal oxygen and carbon isotope records indicate that the arrival of the glacial meltwater signal occurred close to or just after the deposition of the Rerewhakaaitu Tephra. These changes are discussed in relation to controls on climate by oceanic and atmospheric mechanisms. The re-organisation of climate commencing at ca 15,000–14,500 ¹⁴C yr BP (ca 18,000–17,400 cal yr BP) is detected elsewhere in the Southern Hemisphere and evidently was linked to orbitally forced warming which is thought to have initiated ice retreat in both hemispheres.

text: Rerewhakaaitu Tephra, a land–sea marker for the Last Termination in New Zealand, with implications for global climate change The Rerewhakaaiutu Tephra erupted from Okataina Volcanic Centre, North Island, New Zealand, at 14,700±95 ¹⁴C yr BP (ca 17,600 cal yr BP) at a time of rapid re-organisation of Earth's climate system at the end of the Last Glacial (Termination I). It provides a distinctive isochron in a range of different environments in North Island and in adjacent South Pacific Ocean sediments. Terrestrial evidence, based on fluvial aggradation and downcutting relationships, loess accumulation rates, palaeovegetation patterns, and buried soil development and mineralogy, shows that marked amelioration of climate occurred shortly before the Rerewhakaaitu Tephra was deposited. Similarly, marine evidence from around this time shows major changes in accumulation rates of sediment and aeolian quartz and in the abundance of various marine organisms, while foraminiferal oxygen and carbon isotope records indicate that the arrival of the glacial meltwater signal occurred close to or just after the deposition of the Rerewhakaaitu Tephra. These changes are discussed in relation to controls on climate by oceanic and atmospheric mechanisms. The re-organisation of climate commencing at ca 15,000–14,500 ¹⁴C yr BP (ca 18,000–17,400 cal yr BP) is detected elsewhere in the Southern Hemisphere and evidently was linked to orbitally forced warming which is thought to have initiated ice retreat in both hemispheres.

year: 2003

title: Abstracts of the 7th International Conference on Lactoferrin / Résumés de la 7e Conférence internationale sur la lactoferrine

authors: Thomson, N.A.

subjects: lactoferrins

abstract: The article presents abstracts on lactoferrin research. They include "Oral administration of lactoferrin raises NK cell activity in mice,"Comparison of antimicrobial activity between lactoferricin B 15 derivative and antibiotics" and "Batch extraction of lactoferrin from raw whole milk."

text: Abstracts of the 7th International Conference on Lactoferrin / Résumés de la 7e Conférence internationale sur la lactoferrine The article presents abstracts on lactoferrin research. They include "Oral administration of lactoferrin raises NK cell activity in mice,"Comparison of antimicrobial activity between lactoferricin B 15 derivative and antibiotics" and "Batch extraction of lactoferrin from raw whole milk."

year: 2006-06

title: Social consequences of Tūhoe migration: Voices from home in Te Urewera

authors: Nikora, Linda Waimarie

subjects: age effects

abstract: A previous study by Nikora, Guerin, Rua & Te Awekotuku (2004) of the social consequences of Tūhoe moving to the Waikato region found employment and a tertiary education to be the primary motivators. Tūhoe ‘movers’ remained in contact with those who remain in Te Urewera and retained a wish to return to their tribal homelands if presented with work opportunities or upon retirement. Through 29 intensive conversational interviews conducted by Tūhoe community researchers with Tūhoe people we explored the social consequences of migration upon those who had remained ‘at home’. Most participants recognised and strongly supported ‘movers’ to better themselves and find successful futures but hoped that they would one day return. An emerging theme was an apparent age-distribution gap of people between about 20 and 50 years of age in the Tuhoe homelands. This is concerning for a number of reasons.  The ‘age gap’ may potentially bring about a) a lack of good role-models for younger children; b) a lack of people to help out with heavy work; c) a gap in people to sustain traditional teaching models for children, and d) a lack of qualified people in trades and professions. The age gap also means that a whole middle-aged group that in other communities might be contributing funds for capital expenditures are not present in the community.

text: Social consequences of Tūhoe migration: Voices from home in Te Urewera A previous study by Nikora, Guerin, Rua & Te Awekotuku (2004) of the social consequences of Tūhoe moving to the Waikato region found employment and a tertiary education to be the primary motivators. Tūhoe ‘movers’ remained in contact with those who remain in Te Urewera and retained a wish to return to their tribal homelands if presented with work opportunities or upon retirement. Through 29 intensive conversational interviews conducted by Tūhoe community researchers with Tūhoe people we explored the social consequences of migration upon those who had remained ‘at home’. Most participants recognised and strongly supported ‘movers’ to better themselves and find successful futures but hoped that they would one day return. An emerging theme was an apparent age-distribution gap of people between about 20 and 50 years of age in the Tuhoe homelands. This is concerning for a number of reasons.  The ‘age gap’ may potentially bring about a) a lack of good role-models for younger children; b) a lack of people to help out with heavy work; c) a gap in people to sustain traditional teaching models for children, and d) a lack of qualified people in trades and professions. The age gap also means that a whole middle-aged group that in other communities might be contributing funds for capital expenditures are not present in the community.

year: 2008