White-throated Woodrat
Neotoma albigula
Body length: 7 1/2 - 8 1/2"
Diet: Cactus, mesquite beans, and seeds
This species of "packrat" is nicknamed for its habit of gathering wood,
cactus parts, stones, cow dung, bones, beer cans, candy wrappers - just about
every movable object in the vicinity - to build its large nest. Woodrat collections
provide us with an important window into the past. Preserved inside ancient nests
found in the desert are acorns, pine sticks, and other items which suggest a cooler,
wetter climate. Using carbon dating, scientists have determined that 10,000 years
ago areas such as Tonto National Monument were covered by oak woodlands. As the
climate gradually grew warmer and dryer, woodrats began filling their nests with
cacti and other desert plants we find today.
Biologically, mice and rats are not different - though the names are useful in
distinguishing smaller rodents from larger ones. Woodrats are the largest "mice"
found in our area. They are common at the Monument, and occur in every vegetation
community.
NPS
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Updated
May 8, 2005