分ぶん子し生せい態たい学がく

• 生せい態たい学がく

  Ecology in general; 分子生態学 specifically focuses on molecular-level techniques and data.

• 分ぶん子し生せい物ぶつ学がく

  Molecular biology studies biological processes at the molecular level, while 分子生態学 applies those techniques to ecological questions.

Compound of 分子 (molecule) + 生態学 (ecology). A modern interdisciplinary term.