Cross-ecosystem connections support generalist consumers by providing a flux of prey from donor habitats, but these trophic linkages are highly susceptible to human disturbances. Research indicates that habitat restoration can help re-establish these connections; however, the interaction between restored and existing donor habitats remains poorly understood. Here, we demonstrate that constructed wetlands complement adjacent remnant streams by supplying spatial subsidies—emerging aquatic insects—asynchronously, effectively prolonging the foraging period for terrestrial consumers. While insect emergence from streams peaked in spring to early summer, constructed wetlands exhibited a distinct mid-summer peak, generating resource waves that extended food availability. Notably, bat activity increased in a restored site where a constructed wetland was positioned next to a remnant urban stream. However, this benefit was reduced when the wetland was located within a closed forest canopy, where dense vegetation likely limited prey accessibility for bats. These findings underscore the context-dependent interactions between restored and remnant habitats in maintaining cross-ecosystem linkages, emphasizing the importance of spatial planning in ecological restoration efforts.