U.S.-Sweden Cooperative Research: Ecological Adaptation Concerning Sodium Usage by Large Mammals Under Seasonally Stressful Environmental Conditions

该奖项将支持彼得教授之间的合作研究 A.明尼苏达大学圣保罗分校的乔丹和他的一位毕业生 学生与博士阿克佩尔森和戈伦Cederlund，格里姆索野生动物 研究站，Riddarhyttan，瑞典。 他们将研究理论上的 和应用的问题，有关的数额钠的饮食， 野生有蹄类动物，特别是驼鹿。 乔丹博士早期的研究表明 钠可能是驼鹿和其他食草动物的有限资源 在北美北部地区，由于缺乏正常的 陆生牧草 乔丹博士最近一直在研究钠 与瑞典同行的关系 自然条件和钠源（盐块） 由研究人员提供。 这项研究将关注如何 大型哺乳类食草动物，在寒冷时期， 因为钠是稀缺的。 格里姆索的研究站提供了优良的设施， 动物行为的遥测和进行喂养实验， 圈养的驼鹿 拟议的合作提出了美国调查员 有机会使用国外高度专业化的设施， 在美国，他不容易获得。 动物的生理检查，以及行为 人口普查，以更好地了解大型动物如何生存 在紧张的环境条件下。

This award will support collaborative research between Professor Peter A. Jordan, University of Minnesota, Saint Paul, and one of his graduate students with Drs. Ake Pehrson and Goren Cederlund, Grimso Wildlife Research Station, Riddarhyttan, Sweden. They will examine theoretical and applied questions concerning the amount of sodium in the diets of wild ungulates, particulary moose. Dr. Jordan's earlier work has shown that sodium may be a limiting resource for moose and other herbivores in North American boreal regions, because of its scarcity in normal terrestrial forages. Dr. Jordan has recently been studying sodium relationships in these animals with his Swedish counterparts under natural conditions and those in which sodium sources (salt blocks) are provided by the researchers. This research will be concerned with how large mammalian herbivore scope with cold periods when plants which provide sodium are scarce. The research station at Grimso provides excellent facilities to monitor animal behavior by telemetry and to conduct feeding experiments with captive moose. The proposed cooperation presents the U.S. investigator with an opportunity to use highly specialized facilities abroad that are not easily available to him in the U.S. The researchers will carry out physiological examinations of the animals, as well as conduct population censuses to understand better how large animals survive under stressful environmental, conditions.