However, the RAPD analysis provides a more informative result in terms of the overall genetic relationships at the species level compared to the SSR analysis.

然而，涉及到品种间全部的遗传关系，RAPD分析比ssr提供了更多的信息量。

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The analyses showed that RAPD is able to differentiate mainly at the species level, while ERIC is effective at the strain level and therefore more consistent with cultivation characteristics.

分析表明，RAPD方法主要在种的水平上进行鉴别，而ERIC则可以在菌株水平上进行鉴别，结果与菌株栽培性状更为一致。

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Mixed flocks of several species often travel together, but when they are feeding or resting you will spot different birds on the ground, at mid-level heights and at the tree tops.

很多种鸟常常混群共同迁徙，但是当他们停下来觅食休息的时候，你就会发现不同的种类有的在地面上，有的在中层高度，有的则在树顶处。

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Biodiversity impacts can occur at the species level and at the ecosystem level.

FORBES: Operationalizing the Precautionary Principle for Biodiversity

Many factors must be considered to understand how shifts at the individual or species level might ripple through an entire ecosystem and affect ocean services and resources.

UNESCO: International coordination to address ocean acidification | United Nations Educational, Scientific and Cultural Organization

The objectives are to quantify the ocean soundscape on global scales, determine behavioral change thresholds of various species, and examine the functional relationship between sound and the viability of key marine organisms, at an individual scale, a species scale and the ecosystem level.

UNESCO: MEDIA SERVICES