Kubel said Foxborough is a “sweet spot” for the animals, and Southeastern Massachusetts has other large strongholds, such as in Rochester, Dartmouth, Westport, and Wrentham.
According to a state fact sheet, the female marbled salamander generally lays between 50 and 150 eggs in a nest under dead leaves or other protected areas in a dry vernal pool. She stays with the eggs and protects them until the pool fills with water and they hatch a few days later.
It isn’t the first time that a threatened species has stymied a Foxborough project. Work on a water treatment plant on Oak Street near Lamson Road was delayed last year after it was learned the site contained Eastern Massachusetts’ largest habitat of frosted elfins, a protected butterfly. Because the species lays its eggs on indigo plants, which larvae then feed on, more than 10 acres of the plant had to be relocated last year, officials said.
Similarly, workers had to accommodate the oak hairstreak butterfly that was discovered some years back during construction of the Lodge at Foxborough apartment complex.
Michele Morgan Bolton can be reached at email@example.com.