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Article
Allan J. Perkins, Auteur ; Hywel E. Maggs, Auteur ; Jeremy D. Wilson, Auteur ; Adam Watson, Auteur ; Chris Smout, AuteurCapsule Breeding populations were less likely to decline when farmland was subject to management intervention designed to benefit the species. Aims To determine whether targeted management intervention helps to halt or reverse the decline of Cor[...]
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Adam Watson ; P.J. O'Hare January 1, 1973Biological Conservation, 5(1)Blanket bog in western Ireland is a wet infertile habitat, heavily grazed by sheep and cattle, and supporting very low densities of Red Grouse and other wild birds and mammals. An experiment using phosphatic fertilizers increased the growth of v[...]
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David Jenkins ; Adam Watson ; G. R. Miller 1967Journal of Animal Ecology, 36(1)[1. Population studies on red grouse at Kerloch gave results similar to Glen Esk (Jenkins et al. 1963), except that breeding stocks at Kerloch did not change greatly from year to year. 2. Breeding birds took territories in autumn, and expelled n[...]
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G.R. Miller ; David Jenkins ; Adam Watson 1966Journal of Applied Ecology, 3(2)[1. The breeding densities and breeding success of red grouse were compared with the performance of their main food plant, heather, at seventeen study areas of 93-194 ha in north-east Scotland in 1959-61. 2. Heather performance was assessed each[...]
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Adam Watson ; G.R. Miller ; F.H.W. Green January 1, 1966Transactions of the Botanical Society of Edinburgh, 40(2)
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Adam Watson 1964-05Nature, 202(4931)RECENT work on red grouse (Lagopus lagopus scoticus) on a moor at about 300 m altitude in Scotland1 indicates that the spring breeding stock is largely determined the previous autumn. Each year, cock grouse established a new pattern of territori[...]
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Article
Leslie H. Brown ; Adam Watson 1964Ibis, 106(1)The population of Golden Eagles was assessed in four different areas of the Scottish Highlands. The average area per pair varied from 11,400 to 17,884 acres, excluding country that was not used by the eagles. Eagle food in these areas consists l[...]
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David Jenkins ; Adam Watson ; G. R. Miller 1964Journal of Applied Ecology, 1(1)[1. The object of the paper is to assess the importance of predation on red grouse numbers on two study areas in north-east Scotland, where we counted live grouse and found the bodies of nearly all those killed by predators. 2. The abundance of [...]
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David Jenkins ; Adam Watson ; G. R. Miller 1963Journal of Animal Ecology, 32(3)1. This paper describes the results of a five-year population study of red grouse on selected study areas in north-east Scotland, chiefly on two study areas of 460 and 405 ha, but also on smaller areas elsewhere. 2. Counting the grouse, many of [...]
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Adam Watson, Auteur ; Mick Marquiss, Auteur ; Ron Summers, AuteurWe present a more complete and definitive analysis than hitherto of the long runs of data on crossbill abundance and cone-crops in Finland and in Scotland. The abundance of Common Crossbills Loxia curvirostra in Finland was correlated with the a[...]
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Allan J. Perkins, Auteur ; Adam Watson, Auteur ; Hywel E. Maggs, Auteur ; Jeremy D. Wilson, AuteurAssociations between habitat and animal distributions are widely used to make conservation recommendations. However, short-term studies do not allow investigation of temporal variation in associations as habitats change or populations decline. H[...]
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Adam Watson, Auteur ; Stuart Rae, Auteur ; Sandy Payne, AuteurWe report colonisation by extra breeding pairs of Golden Eagles, and subsequent abandonments, in part of northeast Scotland during 1895-1985. The number of pairs rose from three in 1895-1937 to eight by 1948, and then fell to four during 1959-71[...]
