Medication for opioid use disorder among adolescents entering specialty treatment for opioid use disorder and trends in the US, 2017-2022.

Animal sociality refers to the extent to which animals interact and form either long‐term or transient social relationships, spanning from solitary individuals to complex multilevel societies (Smith et al., ). Sociality mitigates the effects of environmental pressures on individual survival and drives species evolution through its effect on reproductive tactics and cognition (Burkart, ). Understanding the ecological conditions that promote or constrain social structures is therefore critical, especially in the context of rapid environmental change. Research increasingly investigates how ecological factors shape the structure of animal social networks, including the influence of abiotic conditions (Fisher et al., ; Leu et al., ), habitat configuration (He et al., ), proximity to human societies (Bond et al., ), group composition (Nagy et al., ), resource availability (Chen et al., ; Mbizah et al., ; Peignier et al., ) and predation risk (Hasenjager & Dugatkin, ; Heathcote et al., ; Kiffner et al., ). While social reorganization in response to ecological changes has been observed in some species, experimental evidence is scarce and the fine‐grained structural properties of animal social networks are often context‐dependent (Lihoreau et al., ; Muller et al., ). Some context dependence is mechanistic in nature (Catford et al., ) meaning external factors may mitigate animal social network dynamics under varying environmental conditions. For instance, increased food availability tends to reduce social selectivity, yielding weaker associations and more evenly distributed interactions (Daura‐Jorge et al., ; Del‐Toro et al., ; Elmhagen et al., ; Fichtel et al., ; Heinen et al., ) whereas food scarcity often strengthens selective bonds within subgroups, intensifies competition and even induces group fission (Ansmann et al., ; Henzi et al., ). Yet, ecological and physical barriers may mitigate these dynamics by restricting animal dispersal, artificially constraining group size and masking underlying social tensions, even under food‐scarce conditions.