BIOL 1902 Lecture Notes - Lecture 15: Gray Jay, Spatial Memory, Frozen Food
8 Feb 2019
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Document Summary
Predatory animals face this challenge of unpredictable food shortages because they catch their prey, and they are not guaranteed to catch their food every time. Storing food when they are able to hunt more is one technique some predatory animals use to prepare for when food is short. Larder is the location of where animals store their food. Northern shrikes larder is spines they impale the food in. Owls larder is tree branches they put food on. Scatter hoarding is the action of saving food in many different locations. Gray squirrels scatter hoard and in the winter, find the locations by memory to dig them back up. Gray jays also scatter hoard food winter. Red squirrels create middens which are a number of large storages of cones. Beavers create a food pile which is a central cache (one storage of all the food) of branches. Drag trail are trails where beavers have dragged branches.
