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- 1Bancroft, D.R.
- 1Clutton-Brock, T.H.
- 1Coltman, D. W.
- 1Coltman, D.W.
- 1MacColl, A.D.
- 1Pemberton, J. M.
A microsatellite polymorphism in the gamma interferon gene is associated with resistance to gastrointestinal nematodes in a naturally-parasitized population of Soay sheepDownload
Abstract: Free-living Soay sheep (Ovis aries) on the island of Hirta, St Kilda, Scotland, are naturally parasitized bq gastrointestinal nematodes, predominantly Teladorsagia circumcincta. In this paper we show that reduced faecal egg counts (FEC) are associated with an allele at a microsatellite...
Density-dependent variation in lifetime breeding success and natural and sexual selection in Soay ramsDownload
Variation in male lifetime breeding success (LBS) is central to understanding selection, yet it has rarely been measured in natural populations of large mammals. Here, we first describe variation in the opportunity for selection in cohorts of Soay rams (Ovis aries) on the archipelago of St....