title: Burial duration and frequency influences resilience of differing propagule types in a subtidal seagrass, Posidonia australis

authors: Campbell, Marnie L.

abstract: Sedimentation that leads to periodic, and often prolonged, burial events is becoming more common on the world’s coastlines as human populations expand and create urbanised marine environments. Different seagrass species react differently to sediment burial but many species in the southern hemisphere are yet to be examined. How seagrasses react to burial has restoration implications. There is a need to critically assess seagrass transplant propagule responses to periodic (pulse) and prolonged (press) burial events before selecting the most appropriate species, transplant propagule, and transplant site. In my study, mesocosm experiments, coupled with field measurements were used to assess how sexual (seedlings) and vegetative (sprigs) propagules of Posidonia australis responded to pulse and press burial events. Seedlings were highly susceptible to burial (both pulse and press), with no survival at the end of the experimental period. In contrast, rhizome growth in vegetative propagules was stimulated by pulse burial, although press burial events resulted in mortality. The implication for Posidonia australis restoration efforts in areas where burial is periodic, was that vegetative propagules are optimal transplant units, in comparison to seedlings. Press burial however, renders a transplant site sub-optimal for both seedling and sprig transplants.

text: Burial duration and frequency influences resilience of differing propagule types in a subtidal seagrass, Posidonia australis Sedimentation that leads to periodic, and often prolonged, burial events is becoming more common on the world’s coastlines as human populations expand and create urbanised marine environments. Different seagrass species react differently to sediment burial but many species in the southern hemisphere are yet to be examined. How seagrasses react to burial has restoration implications. There is a need to critically assess seagrass transplant propagule responses to periodic (pulse) and prolonged (press) burial events before selecting the most appropriate species, transplant propagule, and transplant site. In my study, mesocosm experiments, coupled with field measurements were used to assess how sexual (seedlings) and vegetative (sprigs) propagules of Posidonia australis responded to pulse and press burial events. Seedlings were highly susceptible to burial (both pulse and press), with no survival at the end of the experimental period. In contrast, rhizome growth in vegetative propagules was stimulated by pulse burial, although press burial events resulted in mortality. The implication for Posidonia australis restoration efforts in areas where burial is periodic, was that vegetative propagules are optimal transplant units, in comparison to seedlings. Press burial however, renders a transplant site sub-optimal for both seedling and sprig transplants.

year: 2016

title: Development of a New Event-Based Rainfall-Runoff Equation Based on Average Rainfall Intensity During an Event

authors: Shokri, Ali

abstract: Event-based rainfall-runoff models are practical tools commonly used to predict catchments’ response to a rainfall event. However, one of the main concerns is that the characteristics of rain events are neglected in the model development. This paper develops a novel event-based rainfall-runoff equation to incorporate rainfall characteristics into account. The performance of the new equation is evaluated based on the root mean square error, Nash–Sutcliffe efficiency coefficient, and per cent bias for 13,339 rainfall-runoff events between 2005 and 2020 over 23 catchments across New Zealand and Australia with oceanic, mediterranean, tropical, subtropical, and semiarid climates. Compared to the previous event-based models, the new equation shows an improvement in runoff estimation in almost all case studies. Furthermore, considering the new equation is simple, efficient, and takes the rain event duration into account, the new equation has the potential to become a robust alternative method to the conventional curve number method in hydrological engineering projects.

text: Development of a New Event-Based Rainfall-Runoff Equation Based on Average Rainfall Intensity During an Event Event-based rainfall-runoff models are practical tools commonly used to predict catchments’ response to a rainfall event. However, one of the main concerns is that the characteristics of rain events are neglected in the model development. This paper develops a novel event-based rainfall-runoff equation to incorporate rainfall characteristics into account. The performance of the new equation is evaluated based on the root mean square error, Nash–Sutcliffe efficiency coefficient, and per cent bias for 13,339 rainfall-runoff events between 2005 and 2020 over 23 catchments across New Zealand and Australia with oceanic, mediterranean, tropical, subtropical, and semiarid climates. Compared to the previous event-based models, the new equation shows an improvement in runoff estimation in almost all case studies. Furthermore, considering the new equation is simple, efficient, and takes the rain event duration into account, the new equation has the potential to become a robust alternative method to the conventional curve number method in hydrological engineering projects.

year: 2023

title: Ngāti Whakaue Māngai Nui

authors: Hiini, Anaha Te Wheoro

subjects: Ngāti Whakaue Māngai Nui

abstract: Ko Ngāti Whakaue tētehi iwi ahurei o te waka o Te Arawa.  Ko tētehi taha ōna kei ngā tahataha o te kōroto moana o Te Rotorua-nui-a-Kahumatamomoe, i Waingaehe ki Waimihia.  Ko tētehi atu taha ōna kei te ūnga o te waka rongomaiwhiti o Te Arawa, arā ki Maketū.  
Kua whai mana a Ngāti Whakaue i ngā rautau e tū whakahīhī ai rātau hei iwi mana nui i ō rātau pūkenga me ō rātau pūmanawa kia mau tonu tō rātau Whakauetanga, tō rātau ahurea me ā rātau tikanga.   Ko tētehi pūkenga pēnei i te āheinga ki te whakairo i te kupu rōreka, ki te tuitui i te kōrero i whakaputaina ai te kōrero ‘Te Arawa Māngai Nui’.  He mea whakapuaki te kōrero rā e iwi kē ki te whakanui i ngā pūkōrero o ngā paepae o Te Arawa, ka mutu, koirā hoki tētehi pūkenga i hau ai te rongo o Ngāti Whakaue.  
Nā, ko te pūkenga e kōrerohia nei, ko te reo o Ngāti Whakaue.  Ko tōna oranga tonutanga te kaupapa matua o tēnei tuhinga e rangahaua ana i te putanga o te kōrero a tētehi o ngā koroua matatau o te iwi i te tau 1992, arā a Hamuera Mitchell, nāna tonu nei i whakapuaki ‘Ka mate te reo o Ngāti Whakaue ā te tekau tau’.  

Nō reira, he whakatewhatewhahanga tēnei tuhinga o te reo o Ngāti Whakaue o tua, o mohoa noa nei hoki kia mōhiotia ai te oranga, te matenga haeretanga rānei o te reo o te iwi, o ngā hapū, o te hapori, o te kāinga o nāianei, kia tau hoki mehemea āe rānei kua whai hua ngā rautaki reo o mua a Ngāti Whakaue ki te whakarauora i tōna ake reo, ā, ka aha te iwi e anga whakamua ai.  Ka mātaitia te āhua o te reo o Ngāti Whakaue kia mōhiotia mehemea i tika tā Hamera Mitchell i kī ai i te tau 1992, karekau rānei, mehemea rānei he wero kē nāna kia kaua e tukuna e te iwi o Ngāti Whakaue tō rātau reo kia mate.

Ko te tikanga rangahau Pākehā, ko te tikanga rangahau Māori, me ngā tikanga ako reo ka kaha mātaitia i tēnei tuhinga kia tika ai te kohinga o ngā raraunga o tēnei momo rangahau, ngā tikanga matatika a te wānanga, ngā tukanga tātari me te whakahōrapatanga atu i ngā whakataunga o te rangahau.  

Hei āpiti atu, ka kōrerohia ngā kaupapa mātauranga a Ngāti Whakaue, tae noa atu ki ngā tini kaupapa whakarauora reo a te iwi kua whakahaerehia mai i te tau 2005 ki ēnei rangi tonu nei mō te oranga o te reo o Ngāti Whakaue te take e anga tōtika atu ai ki te wetenga o te rautaki reo o mua a Ngāti Whakaue i whakahaerehia ai i ngā tau 2013 ki te tau 2017 i kitea ai ōna pikinga, ōna hekenga, ōna ngoikoretanga me ōna hua.  

Heoi anō, hei whaiwhai noa ake i te rautaki o mua nei, ko ngā mātātuhi kua mahue iho rā, ko te korenga o ngā arotakenga, ko te korenga o ngā pūrongo, ko te korenga o ētehi taunakitanga ā-tuhi nei, ko te korenga o tētehi aha kē atu rānei kia kitea he hua, he pikinga, he hekenga, he aha rānei.  Ahakoa tērā raru, nā te kitenga me te rongotanga o te pikinga haeretanga o te āhua o te reo, nā ngā kōrero ā-waha me ngā kauhau a ētehi mō ngā hua i puta ai i te rautaki reo o mua a Ngāti Whakaue i mana ai te whakahaumanutanga o te reo o ngā paepae o te iwi.

Nā te mea ko te reo Māori te remurere o te kaituhi nei, kua tekau mā waru tau ia e whai ana i te kaupapa i a ia e whakaako ana, i a ia e wānanga ana, i a ia hoki e whakapau kaha ana ki te whakaora anō i te reo Māori, kua whakaritea e ia tētehi rautaki reo hou e toru tekau tau te roa hei kōkiri mā te iwi e ora rawa atu anō ai te reo o Ngāti Whakaue, e whai hua anō ai hoki te whakapuakitanga o te kōrero rā ‘Te Arawa Māngai Nui’, hei tohu whakanui i ngā pūkenga kōrero o te iwi.

E ai ki te kōrero, ‘he tīmohea kua pakari’.  Nā roto i te āta rangahaua o te kaupapa nei i mōhio ai e ora tonu nei te reo o Ngāti Whakaue, heoi, kāore e pērā rawa te kaha o te oranga i te wā i a kui mā, i a koro mā.  Ahakoa te kōrero mō te matenga haeretanga o te reo o Ngāti Whakaue, nā ngā kaupapa whakaora reo a te iwi i ngā tau i piki anō ai te oranga o te reo, ka mutu, mā te whakahaerenga tonutanga o ngā wānanga nei e ora tonu anō ai te reo.

text: Ngāti Whakaue Māngai Nui Ko Ngāti Whakaue tētehi iwi ahurei o te waka o Te Arawa.  Ko tētehi taha ōna kei ngā tahataha o te kōroto moana o Te Rotorua-nui-a-Kahumatamomoe, i Waingaehe ki Waimihia.  Ko tētehi atu taha ōna kei te ūnga o te waka rongomaiwhiti o Te Arawa, arā ki Maketū.  
Kua whai mana a Ngāti Whakaue i ngā rautau e tū whakahīhī ai rātau hei iwi mana nui i ō rātau pūkenga me ō rātau pūmanawa kia mau tonu tō rātau Whakauetanga, tō rātau ahurea me ā rātau tikanga.   Ko tētehi pūkenga pēnei i te āheinga ki te whakairo i te kupu rōreka, ki te tuitui i te kōrero i whakaputaina ai te kōrero ‘Te Arawa Māngai Nui’.  He mea whakapuaki te kōrero rā e iwi kē ki te whakanui i ngā pūkōrero o ngā paepae o Te Arawa, ka mutu, koirā hoki tētehi pūkenga i hau ai te rongo o Ngāti Whakaue.  
Nā, ko te pūkenga e kōrerohia nei, ko te reo o Ngāti Whakaue.  Ko tōna oranga tonutanga te kaupapa matua o tēnei tuhinga e rangahaua ana i te putanga o te kōrero a tētehi o ngā koroua matatau o te iwi i te tau 1992, arā a Hamuera Mitchell, nāna tonu nei i whakapuaki ‘Ka mate te reo o Ngāti Whakaue ā te tekau tau’.  

Nō reira, he whakatewhatewhahanga tēnei tuhinga o te reo o Ngāti Whakaue o tua, o mohoa noa nei hoki kia mōhiotia ai te oranga, te matenga haeretanga rānei o te reo o te iwi, o ngā hapū, o te hapori, o te kāinga o nāianei, kia tau hoki mehemea āe rānei kua whai hua ngā rautaki reo o mua a Ngāti Whakaue ki te whakarauora i tōna ake reo, ā, ka aha te iwi e anga whakamua ai.  Ka mātaitia te āhua o te reo o Ngāti Whakaue kia mōhiotia mehemea i tika tā Hamera Mitchell i kī ai i te tau 1992, karekau rānei, mehemea rānei he wero kē nāna kia kaua e tukuna e te iwi o Ngāti Whakaue tō rātau reo kia mate.

Ko te tikanga rangahau Pākehā, ko te tikanga rangahau Māori, me ngā tikanga ako reo ka kaha mātaitia i tēnei tuhinga kia tika ai te kohinga o ngā raraunga o tēnei momo rangahau, ngā tikanga matatika a te wānanga, ngā tukanga tātari me te whakahōrapatanga atu i ngā whakataunga o te rangahau.  

Hei āpiti atu, ka kōrerohia ngā kaupapa mātauranga a Ngāti Whakaue, tae noa atu ki ngā tini kaupapa whakarauora reo a te iwi kua whakahaerehia mai i te tau 2005 ki ēnei rangi tonu nei mō te oranga o te reo o Ngāti Whakaue te take e anga tōtika atu ai ki te wetenga o te rautaki reo o mua a Ngāti Whakaue i whakahaerehia ai i ngā tau 2013 ki te tau 2017 i kitea ai ōna pikinga, ōna hekenga, ōna ngoikoretanga me ōna hua.  

Heoi anō, hei whaiwhai noa ake i te rautaki o mua nei, ko ngā mātātuhi kua mahue iho rā, ko te korenga o ngā arotakenga, ko te korenga o ngā pūrongo, ko te korenga o ētehi taunakitanga ā-tuhi nei, ko te korenga o tētehi aha kē atu rānei kia kitea he hua, he pikinga, he hekenga, he aha rānei.  Ahakoa tērā raru, nā te kitenga me te rongotanga o te pikinga haeretanga o te āhua o te reo, nā ngā kōrero ā-waha me ngā kauhau a ētehi mō ngā hua i puta ai i te rautaki reo o mua a Ngāti Whakaue i mana ai te whakahaumanutanga o te reo o ngā paepae o te iwi.

Nā te mea ko te reo Māori te remurere o te kaituhi nei, kua tekau mā waru tau ia e whai ana i te kaupapa i a ia e whakaako ana, i a ia e wānanga ana, i a ia hoki e whakapau kaha ana ki te whakaora anō i te reo Māori, kua whakaritea e ia tētehi rautaki reo hou e toru tekau tau te roa hei kōkiri mā te iwi e ora rawa atu anō ai te reo o Ngāti Whakaue, e whai hua anō ai hoki te whakapuakitanga o te kōrero rā ‘Te Arawa Māngai Nui’, hei tohu whakanui i ngā pūkenga kōrero o te iwi.

E ai ki te kōrero, ‘he tīmohea kua pakari’.  Nā roto i te āta rangahaua o te kaupapa nei i mōhio ai e ora tonu nei te reo o Ngāti Whakaue, heoi, kāore e pērā rawa te kaha o te oranga i te wā i a kui mā, i a koro mā.  Ahakoa te kōrero mō te matenga haeretanga o te reo o Ngāti Whakaue, nā ngā kaupapa whakaora reo a te iwi i ngā tau i piki anō ai te oranga o te reo, ka mutu, mā te whakahaerenga tonutanga o ngā wānanga nei e ora tonu anō ai te reo.

year: 2020