FOOD SUPPLEMENTATION EXPERIMENTS WITH TERRESTRIAL VERTEBRATES - PATTERNS, PROBLEMS, AND THE FUTURE
FOOD SUPPLEMENTATION EXPERIMENTS WITH TERRESTRIAL VERTEBRATES - PATTERNS, PROBLEMS, AND THE FUTURE
复制标题
DOI：
10.1139/z90-031
复制
发表时间：
1990-02-01
影响因子：
1.4
通讯作者：
BOUTIN, S
中科院分区：
文献类型：
--
作者：
BOUTIN, S
我回顾了138个陆生脊椎动物在野外条件下获得补充食物的案例。这些案例强烈偏向于北温带环境中的小型食草动物。大多数研究都是针对种群水平的问题，并在短期（< 1年）和小空间尺度（少于50个个体）上提供食物。与对照组相比，接受补充食物的个体通常有更小的活动范围、更高的体重和更先进的育种。典型的种群对食物补充的反应是密度增加两到三倍，但种群动态模式没有变化。特别是，添加食物并没有阻止波动的人口大幅下降。在解决人口调节问题时，研究人员未能检查个体在补充食物条件下的行为。这篇综述指出，研究人员需要在热带环境中进行更大规模、更长期的食物补充实验。
I reviewed 138 cases in which terrestrial vertebrates received supplemental food under field conditions. These cases are strongly biased toward small-bodied herbivores in north temperate environments. Most studies address population level questions and have supplied food over a short term (< 1 year) and on a small spatial scale (to less than 50 individuals). Individuals receiving supplemental food usually had smaller home ranges, higher body weights, and advanced breeding relative to those on control areas. The typical population response to food supplementation was two- to three-fold increase in density, but no change in the pattern of population dynamics. In particular, food addition did not prevent major declines in fluctuating populations. Researchers have failed to examine behaviour of individuals under conditions of supplemental food when addressing questions of population regulation. This review points to the need for researchers to conduct food supplementation experiments in tropical environments, on a larger scale, and over longer periods of time.