Fiorella Kathryn J, Bageant Elizabeth R, Schwartz Naomi B, Thilsted Shakuntala H, Barrett Christopher B
Department of Population Medicine and Diagnostic Sciences, Cornell University, Ithaca, NY 14853, USA.
Charles H. Dyson School of Applied Economics and Management, Cornell University, Ithaca, NY 14853, USA.
Sci Adv. 2021 Apr 30;7(18). doi: 10.1126/sciadv.abc7425. Print 2021 Apr.
Climate change will reshape ecological dynamics. Yet, how temperature increases alter the behavior and resource use of people reliant on natural resources remains underexplored. Consequent behavior shifts have the potential to mitigate or accelerate climate impacts on livelihoods and food security. Particularly within the small-scale inland fisheries that support approximately 10% of the global population, temperature changes likely affect both fish and fishers. To analyze how changing temperatures alter households' fishing behavior, we examined fishing effort and fish catch in a major inland fishery. We used longitudinal observational data from households in Cambodia, which has the highest per-capita consumption of inland fish in the world. Higher temperatures caused households to reduce their participation in fishing but had limited net effects on fish catch. Incorporating human behavioral responses to changing environmental conditions will be fundamental to determining how climate change affects rural livelihoods, food production, and food access.
气候变化将重塑生态动态。然而，气温升高如何改变依赖自然资源的人们的行为和资源利用方式，仍未得到充分探索。随之而来的行为转变有可能减轻或加速气候对生计和粮食安全的影响。特别是在支撑着全球约10%人口的小规模内陆渔业中，温度变化可能会对鱼类和渔民都产生影响。为了分析气温变化如何改变家庭的捕鱼行为，我们研究了一个主要内陆渔业中的捕鱼努力量和渔获量。我们使用了柬埔寨家庭的纵向观测数据，柬埔寨是世界上内陆鱼类人均消费量最高的国家。较高的温度导致家庭减少捕鱼参与度，但对渔获量的净影响有限。将人类对不断变化的环境条件的行为反应纳入考量，对于确定气候变化如何影响农村生计、粮食生产和粮食获取至关重要。
