这片湿地作为森林和草原间的过渡带，孕育了许多独特物种。

The wetland serves as an ___ecotone between the forest and the prairie, nurturing many unique species.

这个跨学科项目位于心理学和神经科学的交汇地带，产生了许多创新发现。

The interdisciplinary project thrives in the ___ecotone between psychology and neuroscience, yielding many innovative findings.