生态系统的数学模型同样表明，多样性并不能保证生态系统的稳定性——事实上恰恰相反。
Mathematical models of ecosystems likewise suggest that diversity does not guarantee ecosystem stability—just the opposite, in fact.
数学模型也揭示了食物网可能是不稳定的，顶级肉食性动物的微小改变会对整个生态系统产生巨大影响。
Mathematical models have also revealed that food webs may be unstable, where small changes of top predators can lead to big effects throughout entire ecosystems.
一开始，生态学家建立简单的数学模型和微观实验室，他们搞砸了。
In the beginning, ecologists built simple mathematical models and simple laboratory microcosms. They were a mess.
在数学模型中避免了对经济、社会及生态效益的计算，采用了能间接反映三种效益而又较为简单的目标函数及约束条件。
In the models the calculation on economical, social and ecological benefits is avoided, accepting the simpler goal function and limitation conditions that could reflect the three benefits indirectly.
通过田间试验，对稻-鸭-鱼共栖生态系统中水稻纹枯病的发生规律进行了研究并建立了相应的数学模型。
A field experiment was conducted to investigate the development rule of rice sheath blight in rice-duck-fish complex ecosystem. A model was established based on experiment data.
数学模型在生态学中得到广泛应用等鲜明特点。
数学模型在生态学中得到广泛应用等鲜明特点。
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