Integrative Zoology, Год журнала: 2025, Номер unknown

Опубликована: Март 26, 2025

The development of anthropogenic structures in cities has resulted thermal heterogeneity, potentially affecting the immunological features urban fauna. In these environments, synanthropic species such as pigeons (Columba livia) exhibit coloration polymorphisms under endocrine regulation mediated by melanocortin system, which determines several traits. Due to potential sources variability, we assessed how habitat influences physiological traits related features, theoretically affected feather coloration, while considering other factors seasonality, body mass, and sex. This study aimed determine whether from locations with different temperatures (Santiago, Chile) color polymorphism exhibited variability plasma immunoglobulin Y concentration, leukocyte profiles, H/L index. results demonstrate that variations characteristics their habitats. Specifically, observed a strong effect heterogeneity on ratio, higher values areas experiencing warmer temperatures, relationship dependent mass. We also identified differential impacts seasonality sex basophil monocyte percentages. Regarding humoral immunity, found environmental temperature plumage melanism was influenced Our findings contribute understanding immune system birds provide valuable insights into response landscape modifications.

Язык: Английский