SPATIAL AND TROPHIC NICHES OF THREE SPECIES OF LIZARDS IN DESERT Trophic niche of flea in the southern slope of the Himalaya Mountains Diet Composition and Trophic Niche of Main Herbivores in the Typical Steppe of Inner Mongolia Study on the diet composition and trophic niche of main herbivores in the Inner Mongolia Typical steppe——Taking Leymus chinensis community as an example Insect Community Niche in the Zhalong Wetland Seasonal dynamics of food web energy pathways at the community-level ON NICHES OF TETRANYCHUS VIENNENSIS,PANONYCHUS ULMI AND THEIR PREDATORY ENEMIES──TROPHIC NICHES Melissopalynology of natural toxic honey and trophic niche analysis of Apis cerana cerana in the Lancang River valley