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Breeding Population Inventories and Measures of Recruitment

VII. The Future

A. Basic Species Biology

If population inventories and measures of recruitment are to be improved in the future, additional studies of the basic biology of important waterfowl species must be conducted, especially for the less common species. In addition, information on the distribution of waterfowl during the breeding season is needed. We have pointed out the degree of detail incorporated in the cooperative breeding ground surveys in North America, but information from outside the surveyed area is patchy. In Europe, only in Fennoscandia have surveys similar to the North American cooperative breeding ground surveys been conducted (Haapanen and Nilsson 1979). Isakov (1967) described the vast waterfowl resources of the Soviet Union. He also stressed the need for inventory of these waterfowl populations despite the difficulty of the task (Isakov 1970).

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