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Submitted on: 11 November 2011.
Revised on: 12 December 2011.
Accepted on: 04 February 2012.
___________________JOURNAL OF THE ROYAL SOCIETY OF NEW ZEALAND
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Submitted on: 28 September 2013.
Revised on: 27 October 2013.
Accepted on: 07 November 2013.
___________________JOURNAL OF THE ROYAL SOCIETY OF NEW ZEALAND
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http://reply.papertrans.cn/2/199/19848/19848-26.png
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Submitted on: 17 October 2016.
Revised on: 23 January 2017.
Accepted on: 27 February 2017.
___________________JOURNAL OF THE ROYAL SOCIETY OF NEW ZEALAND
Submitted on: 04 April 2021.
Revised on: 10 May 2021.
Accepted on: 29 May 2021.
___________________JOURNAL OF THE ROYAL SOCIETY OF NEW ZEALAND
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