food availability中文什么意思

食物可利用性

• food:    n. 1.食物，食品，粮食，食料；养 ...
• availability:    n. 1.有效，有益，可利用，可得到 ...
• availability of food:    饵料利用度

例句与用法

1. Changes in food availability over time , it seems , strongly influenced our hominid ancestors
   在演化中，食物内容的变化，对我们的人科祖先有强烈的影响。
2. Especially in countries with undeveloped transport infrastructures , geography restricts food availability as dramatically as genetics promises to improve it
   尤其在运输基础设施落后的国家，地理条件对食物供给的限制正如遗传学为食物供给带来的希望一样大。
3. Therefore , although technical advances in food production and processing will perhaps be needed to ensure food availability , meeting food needs will depend much more on equalizing economic power among the various segments of populations within the developing countries themselves
   因此,尽管也许需要粮食生产和加工方面的技术进步来确保粮食的来源,满足粮食需求更多的是取决于使发展中国家内部的人口各阶层具有同等的经济实力。
4. We constructed fences using 2 x 2 x 2 factorial design to examine the effect patterns of food availability , predation and interspecific competition on population dynamics and spatial behavior of reed voles , microtusfortis . we expected to test two hypothesises : ( 1 ) availability of high quality food , predation and interspecific competition have independent and addictive effects on population system dynamics for small mammalia herbivore ; ( 2 ) availabiliry of high quality food could reduce home range and aggressive behavior level between individuals of microtine , predation and interspecific competition have independent effects on spatial behavior of microtine
   以2 2 2析因实验设计，在野外围栏条件下，探讨食物可利用性、捕食及种间竞争对沼泽田鼠( microtusfortis )种群动态及空间行为的作用，旨在检验下述特定假设： ( 1 )高质量的食物可利用性、捕食及种间竞争对植食性小哺乳动物种群系统动态具有独立的和累加的效应； ( 2 )高质量的食物可利用性可降低田鼠个体间的攻击行为水平，并导致其巢区减小；捕食与种间竞争对田鼠的空间行为亦有独立的作用。