<P> It is said that the Dwarf population began to dwindle because most male Dwarves did not desire wives, or could not find one that they desired . It does not help that Dwarf women are less than a third of the population (and many of them choose not to marry, as well). Yet much is still left a mystery in Dwarvish history; the Dwarves' true fate is left unknown . </P> <P> In Iron Crown Enterprises' Middle - earth Role Playing (1986) Dwarven player - characters receive statistical bonuses to Strength and Constitution, and subtractions from Presence, Agility and Intelligence . Seven "Dwarven Kindreds", named after each of the founding fathers--Durin, Bávor, Dwálin, Thrár, Druin, Thelór and Bárin--are given in The Lords of Middle - earth--Volume III (1989). </P> <P> In Peter Jackson's live action adaptation of The Lord of the Rings film trilogy, Gimli's character is occasionally used as comic relief and several of his appearances are intended to emphasize the difference between the Dwarves and Elves . </P> <P> As explained in the DVD commentary, the races in the Fellowship come in three height ranges: regular sized Men and Elves, Dwarves who average four feet six inches (1.37 m), and Hobbits who average three feet six inches (1.07 m). The adaptation had to digitally composite certain wide shots in which all of them appear, as well as make use of stunt doubles and various camera perspective tricks . However, while the different races come in three size ranges, the adaptations only used two different size scales, by putting both Dwarves and Hobbits into the same size scale . This was achieved by simply casting tall actors to play Dwarves, who thus seem proportionately taller than the average - height Hobbit actors, without the need for camera tricks or digital compositing . Thus Gimli rarely interacts with Men and Elves within the same camera frame, or when he does, Gimli is actually played by a shorter stunt double seen from behind . In contrast, because Dwarves and Hobbits are in the same size scale, Gimli interacts freely with the Hobbit characters within the same camera frame . A good example is when the Fellowship enters Lothlórien, and Gimli walks up to Frodo and puts his hand on his shoulder, warning him to stay close . Actor John Rhys - Davies is actually 6'1' ' (1.85 m) (two inches (5 cm) taller than Viggo Mortensen, who plays Aragorn), much taller than Elijah Wood (Frodo) who is 5'6' ' (1.67 m), thus keeping the proportion that Dwarves are taller than Hobbits . </P>

How many dwarf kingdoms are there in middle earth