1/9/2024 0 Comments Pack rat diet![]() ![]() This newsletter will cover some of these non-commensal rodent species. In the desert southwestern U.S., there are several native rodents that are encountered in community environments. House mice, roof rats, and Norway rats are three common species found in many parts of the world. While native species can also sometimes decide to live “with us”, they do not necessarily need to live near humans to survive.Ĭommensal rodents that live in close association with humans are dependent on humans for food, water, and shelter. Mice and rats are common rodents encountered in community environments and many species have evolved to live commensally with humans to such an extent that they may not survive in natural environments in the absence of humans. Most rodents have the potential to carry disease-causing pathogens, and for this reason, they should not be handled without protective gloves. They do not hibernate but are less active during cold months. Rodents are primarily nocturnal but can be active during daylight hours. The front teeth have a layer of hard enamel on the front surfaces and softer dentine on the back, so their constant gnawing action sharpens the teeth continuously. They have one pair of upper and lower incisors that they use to gnaw on things, which enables them to taste substances and determine if they are edible or not. ![]() The characteristic common to all rodents is their continuously growing front teeth. rodent species are small, furry animals with short legs and a long tail. Rodents are mammals belonging to the order Rodentia, and most U.S. ![]() Desert wood rat near midden. Photo: Dick Hartshorne, SearchNet Media. Please consider distributing this newsletter to othersĭepartment of Entomology, University of Arizonaįigure 1. ![]()
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