Some Tibetans are closing their WeChat accounts to avoid scrutiny by authorities.
Jamyang Losal's protest brings to 150 the number of self-immolations by Tibetans living in China.
They are being held at an unknown location following their earlier release after questioning.
Lobsang Gyatso survived his burns but was beaten and harassed during his time in prison, a Tibetan source says.
Chagdor Kyab's parents are forbidden to receive friends or to organize prayers, a Tibetan source says.
Gonpo, aged 43, is taken into custody following two-self immolation protests in Kardze in the last two months.
Chagdor Kyab, 16, shouted plea for Tibetan freedom before being taken away by authorities in Amdo.
The animals, including poultry and rabbits, were believed by authorities to be infected with bird flu.
Paramilitary police and government workers conduct political reeducation classes, restrict residents' movements.
Jampal was beaten and tortured in prison and can now walk only with difficulty, a Tibetan source says.
She had prayed over a self-immolation protester and stopped Chinese police from seizing his remains.
Khedrup had previously been held for a month before his release in January for lack of evidence against him.