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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Regulation of herbivore growth by the balance of light and nutrients
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Regulation of herbivore growth by the balance of light and nutrients

机译:通过光和营养的平衡调节草食动物的生长

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摘要

Experiments using planktonic organisms re- vealed that the balance of radiant energy and available nutrients regulated herbivore growth rates through their effects on abundance and chemical composition of primary producers. Both algae and herbivores were energy limited at low lightutrient ratios, but both were nutrient limited at high lightutrient ratios. Herbivore growth increased with increasing light intensity at low values of the lightutrient ratio due to increases in algal biomass, but growth decreased with increasing light at a high lightutrient ratio due to decreases in algal quality.
机译:使用浮游生物的实验表明,辐射能和可用养分的平衡通过它们对初级生产者的丰度和化学成分的影响来调节草食动物的生长速度。藻类和草食动物在低光/养分比下均受能量限制,但在高光/养分比下均受养分限制。由于藻类生物量的增加,在光/营养比低的值下,草食动物的生长随光强度的增加而增加,但由于藻类质量下降,在光/营养比高的情况下,草食动物的生长随光的增加而减少。

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