Rushton Stephen P, Hassall Mark
School of Environmental Sciences, University of East Anglia, NR4 7TJ, Norwich, England.
Oecologia. 1983 Mar;57(3):415-419. doi: 10.1007/BF00377189.
Food preferences and feeding rates of Armadillidium vulgare were measured with leaf litter from nine species of plant from a grassland heath. Litter from dicotyledonous plants was significantly preferred to that from monocotyledonous and bryophyte species but preferences for monocotyledonous litter increased as this decayed.For a given state of decay consumption and absorption rates were highest for dicotyledonous foods. Decayed monocotyledonous foods were consumed and absorbed at a greater rate than standing dead foods. The decayed dicotyledonous material was also consumed more rapidly than the standing dead food but the absorption rate was not significantly different because the decayed food was absorbed less efficiently.It is suggested that A. vulgare maintains high absorption rates on some low quality foods by increasing consumption rate but that its ability to do this depends upon which defences were used by the plants when alive.
利用来自草地石南的9种植物的落叶，测定了普通鼠妇的食物偏好和摄食率。与单子叶植物和苔藓植物的落叶相比，双子叶植物的落叶明显更受青睐，但随着单子叶植物落叶的腐烂，对其的偏好增加。对于给定的腐烂状态，双子叶食物的消耗和吸收率最高。腐烂的单子叶食物的消耗和吸收率高于未腐烂的食物。腐烂的双子叶物质的消耗速度也比未腐烂的食物快，但吸收率没有显著差异，因为腐烂的食物吸收效率较低。研究表明，普通鼠妇通过提高摄食率在一些低质量食物上保持较高的吸收率，但其这样做的能力取决于植物在存活时使用了哪些防御手段。
