Tribe Dissolve

A Tribe Dissolve occurs when one or two tribes are dissolved before the merge and either its members are absorbed into the other tribes, or having the remaining castaways shuffled into the remaining tribes. It is a special variant of the Tribe Switch.

Types of Tribe Dissolve
There are currently three main types of tribal dissolution:
 * Disbanded - where one or two tribes ceased to exist where all remaining players still in the game (regardless of tribal affiliation) are shuffled into the remaining tribes. Seen in and.
 * Absorbed - a type of dissolve where one or two tribes' remaining members are scattered (known as Absorbed) between the other remaining tribes. Seen in and.
 * Conquered - a type of absorption where the remaining members of the losing tribe go directly to the other tribe, where the season has no merge. Seen in.

Survivor: Pearl Islands
The actual first time a dissolve happened was directly after The Outcasts  tribal council, when Burton Roberts and Lillian Morris were voted back in to the competition. This happened because The Outcasts beat Drake and Morgan in a 3-Tribe Challenge. After the tribal councils, the Outcasts Tribe was removed from play.

Survivor: All-Stars
The first time a dissolve happened was during Day 13 of Survivor: All-Stars, where the tribes were told that the tribe that finishes last at the Reward Challenge would cease to exist and their remaining members will be absorbed by the other two tribes.

Type: Absorbed

Survivor: Palau
A special case caused Survivor: Palau to have a tribe absorption while only having two competing tribes. This was when one of the tribes, Ulong, was down to its last member, who simply joined the other tribe, Koror. There was no merge that season, as Koror remained to exist until the final day of the competition.

Type: Conquered

Survivor: Panama
It occurred in Survivor: Panama, which had four tribes. While two tribes are disbanded, the remaining players are spread into two new tribes who will take the name of the two tribes that are not dissolved. The 15 remaining castaways (out of 16) were grouped into the two new tribes. Type: Disbanded

Survivor: Cook Islands
It occurred in Survivor: Cook Islands, which had four tribes. While two tribes are disbanded, the remaining players are spread into two new tribes who will take the name of the two tribes that are not dissolved. The 18 remaining castaways (out of 20) were grouped into the two new tribes

Type: Disbanded

Survivor: Philippines
It occurred in Survivor: Philippines, which had three tribes. The absorption took place when the Matsing tribe lost the first four immunity challenges. The last two members, Malcolm Freberg and Denise Stapley were absorbed by the other two tribes. This absorption is similar to the absorption in Survivor: All-Stars, where the dissolved tribe's members are split up into the remaining tribes.

Type: Absorbed

Dissolved Tribes

 * Saboga - Absorbed
 * Ulong - Conquered
 * Bayoneta - Disbanded
 * Viveros - Disbanded
 * Manihiki - Disbanded
 * Puka Puka - Disbanded
 * Matsing - Absorbed

Trivia
The tribes that have been dissolved have been either one of three colors:
 * Blue
 * Ulong, Bayoneta, and Matsing
 * Yellow
 * Saboga and Manihiki
 * Green
 * Viveros and Puka Puka