COMPARISON OF WINTER TROPHIC STRATEGIES BETWEEN RED DEER AND ROE DEER IN DAILING REGION
带岭林区马鹿和狍冬季营养对策的比较

Comparison of winter diets of red deer and roe deer showed that the plant species in winter diets of these two animal species were primarily similar, but the percentage of each plant species was significantly different. Principal foods of red deer and roe deer were composed of 4 plant species (Po-pulus spp., Salix spp. and Tilia amurensis) and 3 plant species (Betula spp., Tilia amurensis and Populus spp.) respectively. Red deer had strong solectivities to ligneous plants compared with roe deer. A significant negative interelationship was found between the selectivities of plants browsed by red deer and the content of hemicellulose but wasnt for roe deer. Crude protein and acid detergent lignin were lower and digestible dry matter higher in red deer diets conpared with roe deer. These two animals species showed a certain overlap in food niche and red deer had broader food niche than roa deer during winter. Roe deer might intake energy through an approach different from that predicted by the traditional theory in winter.