Variation in cohort mandible size as an index of roe deer (Capredus capreolus) densities and population trends

摘要: This paper examines the effects of increasing population density on skeletal development roe deer as indexed by variation in size mandible. We tested for density-dependence total jaw length and minimum diastema height among cohorts a single, intensively studied France. A strong relationship average adult both males females with year birth given cohort was observed, presumably reflects inadequate nutrition juveniles at high density. No such observed which remained constant over range densities studied. exploited to investigate trends Britain. In nine populations, where equivalent data were available between 16 28 separate cohorts, consistent pattern decrease length, but not height, towards present. trend is discussed relation changes habitat structure coniferous forests The utility management tool index highlighted.