Those are springtails. Yes, some species of springtails are known to be pests. It is likely that they are feeding on overly ripe strawberries. Is that possible, from what you see? We'll trust your careful observation. This, by the way, is one of the reasons why so many people grow their strawberries on top of a ground cover of some kind. This would include landscaping cloth, straw, etc.

By and large, springtails are considered an important and even essential part of a healthy, working soil system. They are one of the many soil-borne critters that help turn all kinds of debris (plant and animal stuff) into mineral elements required for plant development.

Attached is a pretty good fact sheet that will tell you a bit about your springtails. Below (copy and paste) is an image of a springtail for your comparison.

http://www.ag.ndsu.edu/pubs/plantsci/rowcrops/e1205-1.jpg

Here is a link that might be useful: Click here for some interesting information

Thank you so much for your reply. I was also worried that they could be causing damage to the roots of my other crops. From what I am gathering, though, this is not the case. Thanks again!! I was at my wits end trying to figure this out.