Shrub encroachment into arid grasslands occurs globally with the potential to affect vertebrates and their interactions. In the Chihuahuan Desert of southern New Mexico, shrub encroachment has prompted intensive efforts by land management agencies to remove shrubs and restore historical grassland habitats. We asked if restoration actions involving shrub removal affected dynamics of intraguild predation (IGP) including an IGP predator (coyote, Canis latrans), an IGP prey (kit fox, Vulpes macrotis), plus their shared lagomorph prey. We used camera traps on 14 sites with paired treated and untreated areas to examine spatial and temporal niche partitioning of coyotes and kit foxes. Shrub removal did not produce straightforward effects on abundances of coyotes, kit foxes, or their prey resources. Instead, abundances of kit foxes were constrained when coyote abundance reached a threshold. Below this threshold, kit foxes were more common on areas with low shrub cover, possibly due to lack of hiding cover for lagomorph prey that increased their predation risk. Our system included two alternative states: IGP predator dominated and coexistence of IGP predator and prey. Coexistence may have been facilitated by temporal niche partitioning as diel activity patterns differed for coyotes and kit foxes. Future research on intraguild predation should integrate spatial and temporal niches to understand species coexistence including on dynamic landscapes undergoing restoration.

灌木侵入干旱草原在全球范围内发生，有可能影响脊椎动物及其相互作用。在新墨西哥州南部的奇瓦瓦沙漠，灌木侵占促使土地管理机构加大力度清除灌木并恢复历史草地栖息地。我们询问了涉及清除灌木的恢复行动是否会影响公会内捕食 (IGP) 的动态，包括 IGP 捕食者（土狼、Canis latrans）、IGP 猎物（kit fox、Vulpes macrotis)，加上它们共享的兔形猎物。我们在 14 个地点使用相机陷阱，对处理和未处理区域进行配对，以检查土狼和套件狐狸的空间和时间生态位分区。去除灌木并没有对土狼、狐狸或它们的猎物资源的丰度产生直接影响。相反，当土狼丰度达到阈值时，套件狐狸的丰度受到限制。低于这个阈值，狐狸在灌木覆盖率低的地区更常见，这可能是由于兔类猎物缺乏藏身之处，这增加了它们的捕食风险。我们的系统包括两种替代状态：IGP 捕食者占主导地位以及 IGP 捕食者和猎物共存。由于郊狼和狐狸的日常活动模式不同，时间生态位分区可能促进了共存。