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Forestry 1973 46(2):191-202; doi:10.1093/forestry/46.2.191
© 1973 by Institute of Chartered Foresters
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A Comparison of Song-bird Populations in Mature Coniferous and Broadleaved Woods

MARJORIE W. ADAMS and J. M. EDINGTON

Department of Zoology, University College Cathays Park, Cardiff

A comparison was made of song-bird populations in a series of 50–60 year-old coniferous and 90–100 year-old broadleaved woods in Tintern Forest and the Forest of Dean. Population estimates were obtained in the breeding season by a mapping census method and in the winter by counts of birds in flocks. In both summer and in winter no appreciable difference was found in the total numbers of song-birds in the coniferous and broadleaved woods. The diversity of species, expressed as a diversity index, was, however, appreciably greater in the broadleaved sites.


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