Schulze W, Schulze E -D
Lehrstuhl Pflanzenökologie, Universität Bayreuth, Postfach 101251, D-8580, Bayreuth, Federal Republic of Germany.
Oecologia. 1990 Mar;82(3):427-429. doi: 10.1007/BF00317494.
Rates of insect capture increased with leaf area in the insectivorous plant Drosera rotundifolia, and growth of new leaves was related to insect capture. However, increased leaf growth was counterbalanced by leaf abscission which was in turn related to insect capture and leaf growth. Leaf loss equaled leaf growth in plants having natural rate of insect capture. A large proportion of the nitrogen gain from prey was stored in the hypocotyl; it was estimated from feeding experiments that about 24% to 30% of the nitrogen stored in the hypocotyl after winter originated from insect capture in the previous season. The effect of insect capture is discussed in relation to the life cycle of Drosera.
在食虫植物圆叶茅膏菜中，昆虫捕获率随叶面积增加而提高，新叶的生长与昆虫捕获相关。然而，叶片生长的增加被落叶所抵消，而落叶又与昆虫捕获和叶片生长相关。在具有自然昆虫捕获率的植物中，叶片损失量与叶片生长量相等。从猎物中获取的大部分氮储存在下胚轴中；通过喂食实验估计，冬季过后下胚轴中储存的氮约有24%至30%来自上一季的昆虫捕获。结合茅膏菜的生命周期讨论了昆虫捕获的影响。
