植物化学防卫与植食性哺乳动物的适应对策

植物化学防卫与植食性哺乳动物的适应是动物—植物系统协同进化研究的重要内容。植物次生化合物可降低动物的食物摄入量及消化率、蛋白质可利用率。某些次生化合物还影响植食性哺乳动物的正常繁殖活动。单宁是动物的重要觅食阻遏剂之一。动物在学习食物选择的过程中，通过认知过程和感知过程处理食物信息，选择食物项目。幼体在胚胎期和哺乳期能从母体获得食物信息，或向有觅食经验的同胞伙伴学习处理食物的经验。动物亦可通过形成络和物，改变体内环境，通过微生物降解、氧化还原、基础代谢率等降低生理对策，以降低植物次生化和物的影响。

PLANT CHEMICAL DEFENSES AND THE ADAPTIVE STRATEGIES OF HERBIVOROUS MAMMALS

The plant chemical defenses and the adaptive strategies of herbivorous mammals are the main aspects in nutritional ecology and evolutionary ecology. Plant secondary compounds could decrease the food intake,digestibility and protein availability, and some compounds could effect the normal reproductive performance of herbivorous mammals. Tannin is an important feeding deterrent to herbivores. Animals processed information about food through cognitive processes and affective processes in diet selection. The offspring could learn foraging information from mother in uterus and weaning, and get also foraging information from experienced forager through social learning. The mammalian herbivores could reduce the influence of plant secondary compounds by increasing the food item spectrum ,learning of diet selection, formation of coagulation, degradation of microorganism, oxidation and reduction.