Persistent species relationships characterize migrating bird communities across stopover sites and seasons

Proceedings of the National Academy of Sciences, Год журнала: 2024, Номер 121(34)

Опубликована: Авг. 13, 2024

Global migrations of diverse animal species often converge along the same routes, bringing together seasonal assemblages animals that may compete, prey on each other, and share information or pathogens. These interspecific interactions, when energetic demands are high time to complete journeys is short, influence survival, migratory success, stopover ecology, routes. Numerous accounts suggest co-migrations globally distributed in aerial, aquatic, terrestrial systems, although study migration date has rarely investigated interactions among migrating animals. Here, we test hypothesis communities engaged networks ecological interactions. We leverage over half a million records 50 bird from five banding sites collected 8 23 y for associations using social network analyses. find strong support persistent relationships across between spring fall migration. be ecologically meaningful: They stronger phylogenetically related with similar foraging behaviors nonbreeding ranges even after accounting nonsocial contributions associations, including overlap timing habitat use. While could result costly competition beneficial exchange, largely positive, suggesting limited competitive exclusion at scale station during stopovers. Our findings an understanding consist networked rather than random independently species, encouraging future studies nature consequences co-migrant

Язык: Английский

Migratory singers dynamically overlap the signal space of a breeding warbler community

Ecology and Evolution, Год журнала: 2024, Номер 14(2)

Опубликована: Фев. 1, 2024

Migratory species inhabit many communities along their migratory routes. Across taxa, these repeatedly move into and out of communities, interacting with each other locally breeding competing for resources niche space. However, influence is rarely considered in analyses ecological processes within the they temporarily occupy. Here, we explore impact on a community using framework acoustic signal space, limited resource which sounds co-exist. Migrating New World warblers (Parulidae, hereafter referred to as migrant species) often sing during refueling stops areas at times warbler (hereafter are singing establish territories attract mates. We used eBird data determine co-occurrence 19 11 across spring migration SW Michigan, generated space from song recordings species, examined patterns signaling overlap experienced by migrants moved through community. Migrant were present two-thirds season local including periods when established attracted Signaling individual was idiosyncratic varied over time, yet between occurred more commonly than or species. Nevertheless, proportion similar among Our findings showed that overlapped signals suggesting could have unexplored impacts communication potentially affecting detection evolution. study contributes growing body research documenting ecosystems.

Язык: Английский

Contrasting morphological and acoustic trait spaces suggest distinct participant benefits in mixed-species bird flocks

Animal Behaviour, Год журнала: 2025, Номер unknown, С. 123058 - 123058

Опубликована: Янв. 1, 2025

Язык: Английский