Næss Marius Warg, Bårdsen Bård-Jørgen, Pedersen Elisabeth, Tveraa Torkild
Hum Ecol Interdiscip J. 2011 Aug;39(4):489-508. doi: 10.1007/s10745-011-9398-7. Epub 2011 May 12.
Previously it has been found that an important risk buffering strategy in the Saami reindeer husbandry in Norway is the accumulation of large herds of reindeer as this increases long-term household viability. Nevertheless, few studies have investigated how official policies, such as economic compensation for livestock losses, can influence pastoral strategies. This study investigated the effect of received predation compensation on individual husbandry units' future herd size. The main finding in this study is that predation compensation had a positive effect on husbandry units' future herd size. The effect of predation compensation, however, was nonlinear in some years, indicating that predation compensation had a positive effect on future herd size only up to a certain threshold whereby adding additional predation compensation had little effect on future herd size. More importantly, the effect of predation compensation was positive after controlling for reindeer density, indicating that for a given reindeer density husbandry units receiving more predation compensation performed better (measured as the size of future herds) compared to husbandry units receiving less compensation.
此前已发现,在挪威萨米人的驯鹿养殖中,一项重要的风险缓冲策略是积累大量驯鹿群,因为这会提高家庭的长期生存能力。然而,很少有研究调查官方政策,如对牲畜损失的经济补偿,如何影响放牧策略。本研究调查了获得的捕食补偿对个体养殖单位未来鹿群规模的影响。本研究的主要发现是,捕食补偿对养殖单位未来的鹿群规模有积极影响。然而,捕食补偿的影响在某些年份是非线性的,这表明捕食补偿对未来鹿群规模的积极影响仅在达到一定阈值之前存在,超过该阈值后,增加额外的捕食补偿对未来鹿群规模几乎没有影响。更重要的是,在控制了驯鹿密度之后,捕食补偿仍有积极影响,这表明对于给定的驯鹿密度,获得更多捕食补偿的养殖单位(以未来鹿群规模衡量)比获得较少补偿的养殖单位表现更好。