由于世界上一半的可居住土地用于农业,监测农田生物多样性对于实现《联合国生物多样性公约》(CBD)的目标至关重要。本文件旨在通过研究当前的国家举措和提出制定基于生境的指标的准则,推进经合组织国家的农业生物多样性监测。拟议的方法提供了一个灵活和务实的框架,以协调国家方案报告,同时考虑到各国环境因素的多样性,包括农业系统、气候、生物物理条件和物种库。为了在短期内促进指标的实施,有三个级别的报告,这取决于数据的可用性,以便所有国家都能参与,无论它们的数据资源有限还是已经有监测方案。
Three-spined sticklebacks live in both salt and fresh water. When the glaciers melted at the end of the last ice age and new lakes were formed, sticklebacks from the sea found new habitats in them. Felicity Jones and her team at the Friedrich Miescher Laboratory of the Max Planck Society in Tübingen are investigating how the genome of the fish changes in the course of adaptation. 12,000-year-old stickleback bones provide insights into the early stages of this process.