months (F = - 2 ym; Figure 1. The number of male and female coyotes captured each month during de~redation control efforts in western Virginia by method. ' Females comprised 51% of our sample and males 49%.
Common causes of mouth ulcers. The most common causes of mouth ulcers are related to disturbances of the mouth and include: 1  Bacterial infections. 2  Canker sores. 3  Dietary deficiencies, such as lack of vitamin B-12, zinc, folate (folic acid), or iron. 4  Emotional stress. 5  Food allergies. 6  Nutritional deficiency. 7  Spicy foods.
Luckily most mouth ulcers are easy to treat. Mouth ulcers are usually temporary, healing on their own within 1 to 2 weeks, and harmless (except for pain and inconvenience). If you get mouth ulcers that last longer than 3 weeks, or they recur regularly, you should seek medical attention as it may be a sign of a more serious problem. Causes of Mouth Ulcers. Mouth ulcers are not contagious.