Last week we received this season’s first report of a dispersing marmot. Two forestry workers photographed a marmot on a gravel road in the Nanaimo Lakes region. “Dispersal” is a natural process that happens when a marmot leaves the colony that they were born at, and travels through the landscape to join another colony and start a family. For Vancouver Island marmots, this usually happens at or after age two, when marmots are fully grown and independent but have not yet bred at a site.
From the photos, we could tell that this marmot was known to us because it had two shiny, metal ear tags with numbers on them. We couldn’t quite read the numbers from the photos, but that gave us a great start at figuring out who it might be. We knew that if the marmot had ear tags, it likely also had a working radiotelemetry transmitter. Transmitters send out pulses, and by using a special antenna and receiver and walking in the direction with the loudest pulse, we can track a marmot to a specific location – kind of like a game of “hot or cold”, but with beeps!
We solved the mystery when we confirmed that it was a 2yo wild-born male named Precip. By the time we found him, he had finished his journey and was hiding in a nice, meadowy slide on another marmot mountain. He had traveled 10km from his natal (birth) colony to where he was photographed, and another 5km after that! We wish him all the best at his new colony.
Vancouver Island is a BIG place, so we appreciate your help monitoring this rare and fascinating species. If you see a marmot near a town or road, or if you find a deceased marmot, please let us know!
(Photo credit: J. Araki)