PORTLAND, Ore. — Nevada rancher Cliven Bundy must stay behind bars, a federal judge ruled Tuesday, calling him a danger to the community after he arrived in Oregon to support the armed occupation of a national wildlife preserve led by his sons.

US Magistrate Judge Janice Stewart also said Bundy should not be released ahead of trial because there is a risk he won’t show up for future court dates. Federal prosecutors called the 69-year-old ‘‘lawless and violent’’ in a document filed before the hearing, an assertion his attorney and family denied.

‘‘If he is released and he goes back to his ranch, that is likely the last the government will see of him,’’ Stewart said.

Bundy was arrested in Portland last week on charges stemming from a 2014 armed standoff with federal officials who were rounding up his cattle over unpaid grazing fees.

He came to Oregon to support an occupation at Malheur National Wildlife Refuge, which his sons, Ammon and Ryan Bundy, launched Jan. 2 to demand the US government turn over public lands to local control.

His sons were arrested Jan. 26 and remain in jail, but four holdouts extended the occupation until last Thursday.

The elder Bundy was not charged in connection with the Oregon occupation. All his charges stem from the 2014 Nevada standoff: conspiracy, assault on a federal officer, obstruction, weapon use and possession, extortion to interfere with commerce, and aiding and abetting. Bundy’s attorney, Noel Grefenson, said his client could not be a danger if authorities waited to charge him for 22 months. The judge dismissed that argument and set his next hearing for Friday.

Associated Press