Crop Adaptation to Climate Change in SSA: The Role of Genetic Resources and Seed Systems

Author(s):  
Ola T. Westengen ◽  
Trygve Berg
Author(s):  
Andrew E. McKechnie

The direct impacts of higher temperatures on birds are manifested over timescales ranging from minutes and hours to years and decades. Over short timescales, acute exposure to high temperatures can lead to hyperthermia or dehydration, which among arid-zone species occasionally causes catastrophic mortality events. Over intermediate timescales of days to weeks, high temperatures can have chronic sub-lethal effects via body mass loss or reduced nestling growth rates, negatively affecting sev eral fitness components. Long-term effects of warming manifested over years to decades involve declining body mass or changes in appendage size. Key directions for future research include elucidating the role of phenotypic plasticity and epigenetic processes in avian adaptation to climate change, examining the role of stress pathways in mediating responses to heat events, and understanding the consequences of higher temperatures for species that traverse hot regions while migrating.


2019 ◽  
Vol 11 (8) ◽  
pp. 723-734 ◽  
Author(s):  
L.C. Hagedoorn ◽  
L.M. Brander ◽  
P.J.H. van Beukering ◽  
H.M. Dijkstra ◽  
C. Franco ◽  
...  

2018 ◽  
Vol 10 (3) ◽  
pp. 63-80
Author(s):  
Ian M McGregor ◽  
Hilary Yerbury ◽  
Ahmed Shahid

The contributions of small local non-government organisations (NGOs) in countries at risk from climate change to knowledge creation and action on climate change are rarely considered. This study sought to remedy this by focusing on NGOs in member countries of the Climate Vulnerable Forum (CVF). Analysing data from Intended Nationally Determined Contributions (INDCs), NGO websites and email correspondence with NGO staff through a knowledge brokering typology, this study examines the ways in which local NGOs in five members of the CVF (Afghanistan, Bhutan, Kiribati, Nepal and Tuvalu) take action, generate new knowledge and understandings and contribute to the plans and actions of their government and the international community. The study found that local NGOs are involved in the creation of new knowledge both at the scientific and community level and engage in actions to support adaptation to climate change. However, there are differences in the approaches they take when making contributions to scientific knowledge and climate change debates. The findings of this study suggest the need to reconceptualise the role of local NGOs in small countries at risk from climate change.


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