Sunday Sketch: Red Squirrel Rattles

Did you know that North American red squirrels (Tamiasciurus hudsonicus) announce territorial ownership by making vocalizations called rattles? Recently, a study found that short-term stress from capturing and handling squirrels affected acoustic structure of these vocalizations. This research reveals that rattles may also carry important information about squirrel physiological condition.

Sketch contributed by Rachael Coon and fact contributed by Lindsey Broadus

Source: Sehrsweeney, M., Wilson, D. R., Bain, M., Boutin, S., Lane, J. E., McAdam, A. G., & Dantzer, B. (2019). The effects of stress and glucocorticoids on vocalizations: a test in North American red squirrels. Behavioral Ecology, arz044, https://doi.org/10.1093/beheco/arz044

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s