“…For example, the Janzen‐Connell hypothesis posits that herbivores may exert density‐dependent effects on plant mortality by feeding preferentially on seeds or plants occurring in dense patches of conspecifics, causing mortality and thereby opening space on the forest floor for the recruitment of additional species (Connell, 1971; Janzen, 1970). This hypothesis has inspired years of study (reviewed by Carson et al, 2008; Comita et al, 2014; Song et al, 2021), but not all data support its predictions (Hyatt et al, 2003; Brenes‐Arguedas, 2012; Song et al, 2021). This may be because, as Janzen himself noted, herbivores do not perceive their would‐be host plants as taxonomic units but rather as chemical entities that may be nutritious or deterrent, depending on their chemistry (Janzen, 1978).…”