Antler and Body Size in Black-Tailed Deer: An Analysis of Cohort Effects

Figure 1

Total annual precipitation for all years of the study (1979–1997) is depicted for Hopland California, USA. Yearly precipitation was calculated from the start of July to the end of June of the following year. This arrangement allowed for the examination of a complete year of vegetative growth, in particular during the wet season (October–April). Darker blue represents the experimental years when both females and males were harvested ( mm, SD = 26.22 mm). Light blue is pretreatment (only male deer harvested) ( mm, SD = 24.38 mm), and diagonal cross-hatching represents posttreatment (only male deer harvested) ( mm, SD = 48.69 mm). The dark red dashed line identifies the long-term average annual precipitation ( mm, SD = 329.20 mm).