MOOSE AND SNOWSHOE HARE COMPETITION AND A MECHANISTIC EXPLANATION FROM FORAGING THEORY
MOOSE AND SNOWSHOE HARE COMPETITION AND A MECHANISTIC EXPLANATION FROM FORAGING THEORY
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DOI：
10.1007/bf00396753
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发表时间：
1984-01-01
期刊：
影响因子：
2.7
通讯作者：
BELOVSKY, GE
中科院分区：
文献类型：
--
作者：
BELOVSKY, GE
驼鹿（A. alces）和雪鞋兔（L.美国人似乎在互相竞争。这是通过对密歇根州皇家岛国家公园（Isle Royale National Park）岛屿上同域分布和异域分布的种群进行自然实验和人工围封来确定的。这些地区的人口密度适合于一系列基于不同竞争机制的竞争模型（Schoener 1974 a），使用非线性回归技术。一个模型的食物竞争的食物可以被分成专门使用和共享的类别预测观察到的密度驼鹿和野兔最好。竞争模型的参数（共享的食物和竞争系数的分数）同意独立的觅食模型预测值。
Moose (A. alces) and snowshoe hare (L. americanus) appear to compete with each other. This was determined using the natural experiments of populations found in sympatry and allopatry on islands at Isle Royale National Park, Michigan [USA] and manipulated exclosures. The population densities from these areas are fit to a series of competition models based upon different competitive mechanisms (Schoener 1974a), using non-linear regression techniques. A model of competition for food where the food can be separated into exclusively used and shared categories predicts observed densities of moose and hare best. The competition model''s parameters (fraction of food shared and competition coefficients) agree with values predicted independently from a foraging model.