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Emydura, also known commonly as the Australian short-necked turtles, is a genus of turtles in the family Chelidae. The genus was paraphyletic with Elseya . Consequently, it was split into two genera Myuchelys and Elseya by Thomson and Georges in 2009. [ 4 ]
The disputed late-life mortality deceleration law states that death rates stop increasing exponentially at advanced ages and level off to the late-life mortality plateau. A consequence of this deceleration is that there would be no fixed upper limit to human longevity — no fixed number which separates possible and impossible values of lifespan.
A number of theories of the relationships within the large chelid family have been posited. Using shared derived characters, an early attempt in the 1970s used strict parsimony to determine the three long-necked genera ( Chelodina , Chelus , and Hydromedusa ) were each other's closest relatives. [ 15 ]
The red-bellied short-necked turtle (Emydura subglobosa), also known commonly as the pink-bellied side-necked turtle and the Jardine River turtle, is a species of turtle in the family Chelidae. The species is native to Australia and New Guinea. There are two recognized subspecies.
The key to life history theory is that there are limited resources available, and focusing on only a few life history characteristics is necessary. Examples of some major life history characteristics include: Age at first reproductive event; Reproductive lifespan and ageing; Number and size of offspring
The northern yellow-faced turtle (Emydura tanybaraga) is a species of medium-sized aquatic turtle in the family Chelidae. It inhabits slow-flowing rivers, streams, billabongs and paperbark swamps across much of northern Australia .
Emydura macquarii (common names include Murray River turtle, [7] Macquarie River turtle, [8] eastern short-necked turtle, eastern short-neck turtle and southern river turtle) [9] is a species of turtle in the family Chelidae. It is a wide-ranging species that occurs throughout many of the rivers of the eastern half of Australia.
The theory is based on the idea that ageing occurs over time due to the damage of the DNA. As an example, studies of mammalian brain and muscle have shown that DNA repair capability is relatively high during early development when cells are dividing mitotically, but declines substantially as cells enter the post-mitotic state. [28] [29] [30]