Interactions between established and recruiting plants play an important role in species coexistence in natural plant communities. However, our knowledge on the particular ecological drivers of these interactions is still limited. We use spatial point pattern analysis to study the spatial patterns of recruitment and infection in two plant-pathogen systems, each involving a fungus with a different life cycle: the pair Quercus faginea-Trabutia quercina and the triad Crataegus monogyna-Gymnosporangium sp.-Juniperus oxycedrus. Our results show that T. quercina, an autoecious fungus, may act as a stabilizing mechanism in the population dynamics of Q. faginea. In turn, the effect of the heteroecious Gymnosporangium sp. on C. monogyna recruitment was more related to distance from the alternate host J. oxycedrus than to distance from conspecifics. These results demonstrate that the complexity of pathogen life cycle may impact recruitment and the development of interspecific plant-plant interactions in real plant communities.

成熟植物与募集植物之间的相互作用在天然植物群落中物种共存中起着重要作用。但是，我们对这些相互作用的特定生态驱动因素的认识仍然有限。我们使用空间点模式分析来研究两种植物-病原体系统中募集和感染的空间模式，每种系统均涉及具有不同生命周期的真菌：成对的Quercus faginea - Trabutia quercina和三合会Crataegus monogyna - Gymnosporangium sp。- Juniperus oxycedrus。我们的研究结果表明T. quercina，一个autoecious真菌，可作为人口动态稳定机制作用Q. faginea。反过来，heteroecious的效果Gymnosporangium SP。上C. monogyna招募更多有关距离从备用主机J. oxycedrus比从同种的距离。这些结果表明，病原体生命周期的复杂性可能会影响真实植物群落中的募集和种间植物-植物相互作用的发展。