White-tailed deer are commonly observed on roadsides, crossing the firebreaks, and feeding on lawns and recreation fields. Due to the relatively poor browse, the average body size of the deer in central Long Island is generally smaller than that in other portions of New York. In general most does have twins, but it is not uncommon for a doe to have triplets. The diversity in habitat (lawns, mowed roadsides, open fields) as well as the current protection from hunting has probably resulted in a greater density of deer on the BNL site than would be expected in an unaltered Pine Barrens habitat. Due to the large population density of deer onsite, the Laboratory is considering alternatives for deer management.
White-tailed deer typically have a home range of 2-3 square miles, depending on the quality of the habitat (DeGraaf & Rudis, 1983). On Long Island, deer general travel less than a mile within their home range. Greater travel distances, up to 10 miles, are seen in dispersing males. Preferred habitat consists of forest edges, swamp borders, and areas interspersed with fields and woodland openings. Young (one to two fawns) are typically produced in May and June. Deer are adaptable in their food habits, feeding on grasses, herbs, and aquatic plants in summer and buds, twigs, and some conifers in winter. Deer have heavily browsed yew bushes, particularly those in the tree plantations.
Causes of mortality for white-tailed deer on the site include roadkill, domestic dogs, illegal hunting, and starvation. In the past deer with healed, but previously broken, legs have been observed. BNL employees have related that domestic dogs from nearby developments often pursue and kill deer on site. One deer skeleton with a broadhead (arrow point) embedded in the shoulder blade was found in 1993 (several tree stands [hunting platforms] were observed along the east property line and near Half Moon Pond). Deer are periodically harvested by BNL as part of ongoing environmental monitoring.
Based on data collected since 1992, analysis of meat from white-tailed deer (Odocoileus virginianus)
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