Noisy neighbors how do human activity and habitat disturbance impact the nest site selection of tree swallows and eastern bluebirds


SOCIETY FOR INTEGRATIVE AND COMPARATIVE BIOLOGY
2021 VIRTUAL ANNUAL MEETING (VAM)
January 3 – Febuary 28, 2021

Meeting Abstract


84-10  Sat Jan 2  Noisy neighbors: how do human activity and habitat disturbance impact the nest site selection of tree swallows and eastern bluebirds? Howerin, HM*; Foltz, SL; Moore, IT; Hernandez, J; Radford University; Radford University; Virginia Tech; Virginia Tech hhowerin@radford.edu

Human-caused environmental disturbance is an ongoing issue that affects wildlife in a number of ways—especially the species we tend to live in close proximity to. Understanding the disturbances, the species they affect, and how these species are affected is essential in order to minimize potentially detrimental impacts. Both eastern bluebirds (Sialia sialis) and tree swallows (Tachycineta bicolor) readily breed near humans and will use artificial nestboxes; however, not all boxes are used equally. Last year, we compared various features of individual nestboxes and their immediate environment with both species’ use of these boxes. We found that tree swallows seem to prefer boxes with less canopy cover, while bluebirds prefer boxes with less nearby pedestrian and vehicle traffic. Here, we build on this work by including additional nest boxes and measuring an additional variable highly associated with human disturbance—ambient noise. Data analysis is ongoing, but we predict that species’ responses to canopy cover and human activity at nest boxes will follow the trends that we previously observed, and ambient noise will be inversely related to eastern bluebird box use as well. Our results may provide insight into the specific factors that influence species’ nest site selection, particularly in areas with human disturbance, and be of practical use in conservation efforts involving artificial nest boxes.

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