Potential impacts of global climate change on Pacific Northwest spring chinook salmon (Oncorhynchus tshawytscha): an exploratory case study

1993 ◽  
Vol 63 (2) ◽  
pp. 191
Author(s):  
Barley Norton

This chapter addresses the cultural politics, history and revival of Vietnamese court orchestras, which were first established at the beginning of the Nguyễn dynasty (1802–1945). Based on fieldwork in the city of Hue, it considers the decolonizing processes that have enabled Vietnamese court orchestras to take their place alongside other East Asian court orchestras as a display of national identity in the global community of nations. The metaphor of ‘orchestrating the nation’ is used to refer to the ways in which Vietnamese orchestras have been harnessed for sociopolitical ends in several historical periods. Court orchestras as heritage have recourse to a generic, precolonial past, yet they are not entirely uncoupled from local roots. Through a case-study of the revival of the Nam Giao Sacrifice, a ritual for ‘venerating heaven’, the chapter addresses the dynamics of interaction and exchange between staged performances of national heritage and local Buddhist and ancestor worship rituals. It argues that with growing concern about global climate change, the spiritual and ecological resonances of the Nam Giao Sacrifice have provided opportunities for the Party-state to reassert its position as the supreme guardian of the nation and its people.


2014 ◽  
Vol 16 (3) ◽  
pp. 47-58
Author(s):  
Cristiana-Maria Ciocanea ◽  
Athanasios-Alexandru Gavrilidis ◽  
Vasile Bagrinovschi

Abstract “Iron Gates” Natural Park is located in the South-Western part of Romania and is recognized for its great diversity of ecosystems, wide variety of species and emblematic landscapes. Due to its Mediterranean climatic influences and vegetation structure, the area is a suitable habitat for the existence and development of Testudo hermanni boettgeri. Monitoring both, the evolution of the microclimatic features in the lower Eșelnița watershed and the species behaviour, represents a useful step in order to determine if the global climate change endangers the conservation management of the tortoise.


Author(s):  
Muhammad Zainuddin Lubis ◽  
Wenang Anurogo ◽  
Mir'atul Mufida ◽  
Herika Muhamad Taki ◽  
Satria Antoni ◽  
...  

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 3028 ◽  
Author(s):  
Harshinie Karunarathna ◽  
Pravin Maduwantha ◽  
Bahareh Kamranzad ◽  
Harsha Rathnasooriya ◽  
Kasun De Silva

This study investigates the impacts of global climate change on the future wave power potential, taking Sri Lanka as a case study from the northern Indian Ocean. The geographical location of Sri Lanka, which receives long-distance swell waves generated in the Southern Indian Ocean, favors wave energy-harvesting. Waves projected by a numerical wave model developed using Simulating Waves Nearshore Waves (SWAN) wave model, which is forced by atmospheric forcings generated by an Atmospheric Global Climate Model (AGCM) within two time slices that represent “present” and “future” (end of century) wave climates, are used to evaluate and compare present and future wave power potential around Sri Lanka. The results reveal that there will be a 12–20% reduction in average available wave power along the south-west and south-east coasts of Sri Lanka in future. This reduction is due mainly to changes to the tropical south-west monsoon system because of global climate change. The available wave power resource attributed to swell wave component remains largely unchanged. Although a detailed analysis of monthly and annual average wave power under both “present” and “future” climates reveals a strong seasonal and some degree of inter-annual variability of wave power, a notable decadal-scale trend of variability is not visible during the simulated 25-year periods. Finally, the results reveal that the wave power attributed to swell waves are very stable over the long term.


Author(s):  
Colin L. Nicol ◽  
Jeffrey C. Jorgensen ◽  
Caleb B. Fogel ◽  
Britta Timpane-Padgham ◽  
Timothy J. Beechie

In the Pacific Northwest, USA, climate change is expected to result in a shift in average hydrologic conditions and increase variability. The relative vulnerabilities to peak flow changes among salmonid species within the same basin have not been widely evaluated. We assessed the impacts of predicted increases in peak flows on four salmonid populations in the Chehalis River basin. Coupling observations of peak flows, emissions projections, and multi-stage Beverton–Holt matrix-type life cycle models, we ran 100-year simulations of spawner abundance under baseline, mid-century, and late-century climate change scenarios. Coho (Oncorhynchus kisutch) and spring Chinook salmon (Oncorhynchus tshawytscha) shared the highest projected increase in interannual variability (SD = ±15%). Spring Chinook salmon had the greatest reduction in median spawner abundance (–13% to –15%), followed by coho and fall Chinook salmon (–7% to –9%), then steelhead (Oncorhynchus mykiss) (–4%). Our results show that interspecies and life history variability within a single basin is important to consider. Species with diverse age structures are partially buffered from population variability, which may increase population resilience to climate change.


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