title: Debris dispersal modeling for the great Sumatra Tsunamis on Banda Aceh and surrounding waters

authors: Prasetya, Gegar Sapta

subjects: Tsunami

abstract: The Great Sumatra Tsunami on 26 December 2004 generated large amounts of debris and waste throughout the affected coastal region in the Indian Ocean. In Banda Aceh—Indonesia, the tsunami flows were observed carrying a thick muddy sludge that mixed with all kinds of debris from the destroyed buildings, bridges and culverts, vehicles, fallen trees, and other flotsam. This waste and debris was mostly deposited inland, but traveled both onshore and offshore. Numerical dispersal modeling is carried out to simulate the transport of debris and waste produced by the tsunamis during the event. The model solves the Lagrangian form of the transport/dispersion equations using novel particle tracking techniques. Model results show that understanding the pathway and distribution of the suspended materials and flotsam caused by tsunamis is important for a proper hazards mitigation plan and waste management action, and to minimize serious long-term adverse environmental and natural resources consequences.

text: Debris dispersal modeling for the great Sumatra Tsunamis on Banda Aceh and surrounding waters The Great Sumatra Tsunami on 26 December 2004 generated large amounts of debris and waste throughout the affected coastal region in the Indian Ocean. In Banda Aceh—Indonesia, the tsunami flows were observed carrying a thick muddy sludge that mixed with all kinds of debris from the destroyed buildings, bridges and culverts, vehicles, fallen trees, and other flotsam. This waste and debris was mostly deposited inland, but traveled both onshore and offshore. Numerical dispersal modeling is carried out to simulate the transport of debris and waste produced by the tsunamis during the event. The model solves the Lagrangian form of the transport/dispersion equations using novel particle tracking techniques. Model results show that understanding the pathway and distribution of the suspended materials and flotsam caused by tsunamis is important for a proper hazards mitigation plan and waste management action, and to minimize serious long-term adverse environmental and natural resources consequences.

year: 2011

title: Ancient landscapes of the Namib Desert harbor high levels of genetic variability and deeply divergent lineages for Collembola.

authors: Collins, Gemma Elyse

subjects: Collembola

abstract: Aim: To assess spatial patterns of genetic and species-level diversity for Namib Desert Collembola using mitochondrial DNA cytochrome c oxidase subunit I (COI) gene sequences. Location: Namib Desert gravel plains. Taxon: Collembola (springtails). Methods: A total of 77 soil samples were collected along NE-SW (60 km) and E-W (160 km) transects from within a 4,000 km2 area of the Namib Desert gravel plains. We extracted 434 springtails from the 37 samples which contained Collembola and sequenced them at the COI gene locus. In the absence of specific taxonomic keys and previous genetic data for these taxa, we used Generalized Mixed Yule Coalescent (GMYC) analyses to provide putative species-level designations. Results: We obtained 341 successful COI sequences, 175 of which were unique haplotypes. GMYC analyses identified 30 putative species, with up to 28% sequence divergence (uncorrected p-distance). The distribution of genetic variants was disjunct, with 97% of haplotypes and 70% of "GMYC species" found only at single sites. Main conclusions: Dispersal events, although rare, may be facilitated by environmental events such as prevailing onshore winds or occasional flow of rainwater to the coast. We conclude that the high genetic diversity we observed is the result of ancient springtail lineages, patchy distribution of suitable habitats, and limited dispersal (gene flow) among habitable locations.

text: Ancient landscapes of the Namib Desert harbor high levels of genetic variability and deeply divergent lineages for Collembola. Aim: To assess spatial patterns of genetic and species-level diversity for Namib Desert Collembola using mitochondrial DNA cytochrome c oxidase subunit I (COI) gene sequences. Location: Namib Desert gravel plains. Taxon: Collembola (springtails). Methods: A total of 77 soil samples were collected along NE-SW (60 km) and E-W (160 km) transects from within a 4,000 km2 area of the Namib Desert gravel plains. We extracted 434 springtails from the 37 samples which contained Collembola and sequenced them at the COI gene locus. In the absence of specific taxonomic keys and previous genetic data for these taxa, we used Generalized Mixed Yule Coalescent (GMYC) analyses to provide putative species-level designations. Results: We obtained 341 successful COI sequences, 175 of which were unique haplotypes. GMYC analyses identified 30 putative species, with up to 28% sequence divergence (uncorrected p-distance). The distribution of genetic variants was disjunct, with 97% of haplotypes and 70% of "GMYC species" found only at single sites. Main conclusions: Dispersal events, although rare, may be facilitated by environmental events such as prevailing onshore winds or occasional flow of rainwater to the coast. We conclude that the high genetic diversity we observed is the result of ancient springtail lineages, patchy distribution of suitable habitats, and limited dispersal (gene flow) among habitable locations.

year: 2019

title: Investment in Authentic Sustainable Cultural Tourism : Planning for the Future Benefit of Waikato-Tainui along the Waikato River, Case Studies at Tūrangawaewae and Te Awamārahi Marae

authors: Cooper, Mei Te Werawera Te Reokaha

abstract: “Tērā ōkū hoa kei ngā tōpito e whā o te ao - My friends will come from all parts of the world” – Kīngi Tāwhiao 1822-1894

This doctorate is guided by the visions of the second Māori king, Kīngi Tāwhiao, which reflect the importance of global connections, relationships (Turongo House, 2000:109) and investment to achieve the ultimate goal of authentic or ‘true’ sustainability throughout the world.  The strategic process will require a balance between humans and the natural environment to ensure long-term growth and survival.  This research will investigate whether investment in Authentic Sustainable Cultural Tourism (ASCT) will provide long-term and sustainable benefits for tribes throughout New Zealand, using a study of Waikato-Tainui.  ASCT, if practiced correctly, must be driven by whānau of marae, hapū and iwi alongside ideal long-term partners to ultimately achieve indigenous autonomy. ASCT prioritises the wellbeing of indigenous and local communities, cultural preservation and environmental sustainability while providing secure economic returns to key stakeholders. 

Today, tourism is New Zealand’s largest and fastest growing industry; total tourism expenditure is forecast to increase from $34.7b in 2016, an increase of 12.2% from the previous year, to $41b by 2025.  The natural landscape is the main reason why international travellers visit New Zealand, followed by an interest in Māori culture (Tourism Industry Association, 2015).  Unfortunately, there is sparse funding for Māori tourism development (New Zealand Māori Tourism, 2015; Goulter, 2015) compared to mainstream tourism and Māori are the most impoverished people in New Zealand (Statistics New Zealand, 2011).  Cultural tourism has existed in New Zealand for more than 150 years and has a vital role in New Zealand’s tourism industry.  Te Kīngitanga and the Waikato River are the main aspects that make Waikato unique in New Zealand, however, there is very little cultural tourism in the region.  As a descendant of Waikato-Tainui, I work with my people at the marae level to inform tribal governance about the significant opportunities available to whānau compared to current mainstream investments by the tribe. 

Using Kaupapa Māori and critical realism, the methods used in this research include an investigation of government tourism organisations, interviews with Waikato-Tainui governance groups, case studies at Tūrangawaewae and Te Awamārahi Marae, case studies at fourteen successful Māori tourism providers throughout New Zealand, and an international comparison of best practices in indigenous tourism.

text: Investment in Authentic Sustainable Cultural Tourism : Planning for the Future Benefit of Waikato-Tainui along the Waikato River, Case Studies at Tūrangawaewae and Te Awamārahi Marae “Tērā ōkū hoa kei ngā tōpito e whā o te ao - My friends will come from all parts of the world” – Kīngi Tāwhiao 1822-1894

This doctorate is guided by the visions of the second Māori king, Kīngi Tāwhiao, which reflect the importance of global connections, relationships (Turongo House, 2000:109) and investment to achieve the ultimate goal of authentic or ‘true’ sustainability throughout the world.  The strategic process will require a balance between humans and the natural environment to ensure long-term growth and survival.  This research will investigate whether investment in Authentic Sustainable Cultural Tourism (ASCT) will provide long-term and sustainable benefits for tribes throughout New Zealand, using a study of Waikato-Tainui.  ASCT, if practiced correctly, must be driven by whānau of marae, hapū and iwi alongside ideal long-term partners to ultimately achieve indigenous autonomy. ASCT prioritises the wellbeing of indigenous and local communities, cultural preservation and environmental sustainability while providing secure economic returns to key stakeholders. 

Today, tourism is New Zealand’s largest and fastest growing industry; total tourism expenditure is forecast to increase from $34.7b in 2016, an increase of 12.2% from the previous year, to $41b by 2025.  The natural landscape is the main reason why international travellers visit New Zealand, followed by an interest in Māori culture (Tourism Industry Association, 2015).  Unfortunately, there is sparse funding for Māori tourism development (New Zealand Māori Tourism, 2015; Goulter, 2015) compared to mainstream tourism and Māori are the most impoverished people in New Zealand (Statistics New Zealand, 2011).  Cultural tourism has existed in New Zealand for more than 150 years and has a vital role in New Zealand’s tourism industry.  Te Kīngitanga and the Waikato River are the main aspects that make Waikato unique in New Zealand, however, there is very little cultural tourism in the region.  As a descendant of Waikato-Tainui, I work with my people at the marae level to inform tribal governance about the significant opportunities available to whānau compared to current mainstream investments by the tribe. 

Using Kaupapa Māori and critical realism, the methods used in this research include an investigation of government tourism organisations, interviews with Waikato-Tainui governance groups, case studies at Tūrangawaewae and Te Awamārahi Marae, case studies at fourteen successful Māori tourism providers throughout New Zealand, and an international comparison of best practices in indigenous tourism.

year: 2018