Just catching your Siberian chipmunk before a trip already raises its temperature, a study shows
Published by Planète Pets · managing editor: Clément Lacaille · how our guides are written
Our guides on the Siberian chipmunk mostly cover the risk of escape and the regulations around keeping one (see why an escape is a real ecological problem), but rarely what happens physiologically the moment you catch one to put it in a carrier. A study on the eastern chipmunk (Tamias striatus), a close relative of the Siberian chipmunk (Tamias sibiricus), offers a concrete data point, published in 2012 by Careau, Réale, Garant, Speakman and Humphries in the Journal of Comparative Physiology B. Our other travel guidance is gathered in the travel and safety section.
Contents · 4 sections
A measurable stress fever in the field
By repeatedly capturing free-ranging eastern chipmunks and measuring their body temperature immediately after capture, researchers observed a repeatable rise within the same individual: capture and handling alone trigger a measurable temperature increase, a phenomenon known as stress-induced hyperthermia, or stress fever. This is not a measurement artifact: the effect recurs from one capture to the next in the same animal, evidence of a genuine physiological response rather than a fluke of handling.
What this means before a trip
The moment you catch your Siberian chipmunk to move it into its carrier, its internal temperature is therefore already climbing purely from the capture itself, before even factoring in the ambient temperature. If the trip adds its own heat — a car interior in direct sun, a poorly ventilated carrier — the two effects stack, and the danger threshold can be reached faster than you might expect from the room thermometer alone. Three concrete precautions follow from this: keep the capture itself brief (a prolonged chase around the cage likely worsens the stress response, consistent with the broader literature on the topic), pre-cool the room or vehicle before bringing the animal out rather than after, and set up a well-ventilated carrier in the shade as soon as the animal is caught, rather than waiting until the trip actually starts.
The study's limits
The study tracked a wild population of Tamias striatus in the field, not captive Siberian chipmunks or a carrier-transport context: extrapolating between closely related species within the same genus is reasonable, but no direct data exists yet on Tamias sibiricus in a domestic setting.
Frequently asked questions
Should I let the chipmunk settle before closing the carrier?
Yes, where possible: cutting down active handling time limits the size of the stress response before the trip even begins.
Does a cool carrier undo the effect of a difficult capture?
It limits the two effects from stacking, but does not cancel them instantly: a calm capture from the start beats trying to fix it afterwards. Find all our guides on the rodent hub.
An accessory from our shop for this use: Double-layer plush hammock for rats, squirrels or ferrets (€18.90) · the whole shop
This guide is part of Planète Pets’s Rodents universe. Our advice is general in nature: for any health concern, your veterinarian remains the only reference.