Accompanying Data for Ecology Letters Report "Mutualism disruption by an invasive ant reduces carbon fixation for a foundational East African ant-plant"

Resultant data from a before-after-control-impact study in which <i>Acacia drepanolobium </i>ant-trees were invaded by a non-native ant species, <i>Pheidole megacephala</i>, inducing changes in leaf-level gas exchange 5-7 months after the displacement of native acacia-ants. Control trees were monitored during the same time period to control for background variation to to environmental conditions.<br>Resultant data from an accompanying comparative-factorial field study in which the effects of herbivore exclusion and ant removal on leaf and canopy gas exchange and leaf water potential were recorded in both long-term invaded and un-invaded <i>Acacia drepanolobium</i> tree stands.

本数据集源自一项前后对照影响研究，研究对象为遭外来蚁种大头蚁（Pheidole megacephala）入侵的蚁栖黑金合欢（Acacia drepanolobium）。在本土金合欢蚁被取代后的5至7个月内，其叶片水平气体交换出现变化；同期对对照样树开展监测，以控制环境条件带来的背景变异。
本数据集同时源自一项配套的比较析因野外研究，该研究在长期受入侵与未受入侵的黑金合欢（Acacia drepanolobium）林分中，记录了植食动物排除、蚂蚁移除两种处理对叶片与冠层气体交换及叶片水势的影响。