Question: The cause of the Moho braccatus extinction include the introduction of the third most widespread species of rat in the world behind what other two rats?

<P0-S0> The Polynesian rat, or Pacific rat ("Rattus exulans"), known to the Māori as kiore, is the third most widespread species of rat in the world behind the brown rat and black rat. <P0-S1>  The Polynesian rat originated in Southeast Asia, and like its relatives, has become widespread, migrating to most Polynesian islands, including New Zealand, Easter Island, and Hawaii. <P0-S2>  It shares high adaptability with other rat species extending to many environments, from grasslands to forests. <P0-S3>  It is also closely associated with humans, who provide easy access to food. <P0-S4>  It has become a major pest in most areas of its distribution. <SEP> <P1-S0> The Kauaʻ i ʻ ōʻ ō or ʻ ōʻ ōʻ āʻ ā (Moho braccatus) is a member of the extinct genus of the ʻ ōʻ ōs ("Moho") within the extinct family Mohoidae from the islands of Hawai'i. <P1-S1>  It was previously regarded as member of the Australo-Pacific honeyeaters ("Meliphagidae"). <P1-S2>  This bird was endemic to the island of Kauaʻ i. <P1-S3>  It was common in the subtropical forests of the island until the early twentieth century, when its decline began. <P1-S4>  Its song was last heard in 1987 and it is now probably extinct. <P1-S5>  The causes of its extinction include the introduction of the Polynesian rat, domestic pig, and mosquitoes carrying avian disease (avian malaria and avian pox), as well as habitat destruction. <SEP> <P2-S0> David Boynton (1945–2007) was a leading expert on the natural history of the Hawaiian island of Kauai, especially on the Koke'e Forest and the Alakai Swamp and its wildlife. <P2-S1>  He was called "a voice for the Hawaiian wilderness," a "Guardian of the Koke'e Forest," and as an educator, "the window through which thousands of Hawai'i students learned about Hawaiian birds, plants, marine creatures, climate and much more." <P2-S2>  Boynton photographed a bird now believed extinct, the ʻ Ōʻ ōʻ āʻ ā ("Moho braccatus"). <P2-S3>  He recorded the mating call of the single male, whose mate presumably did not survive Hurricane Iwa at the end of 1982. <P2-S4>  The bird, probably the last of its species, was tending an empty nest. <SEP> <P3-S0> The Anguilla Bank skink "(Spondylurus powelli)" was discovered in the Caribbean with 20 other reptile species and was immediately listed as an endangered species. <P3-S1>  The population of this lizard has been decreasing due to the introduction of the mongoose originally to control rats in sugarcane fields, and now is an invasive species to the Caribbean Islands. <P3-S2>  Many of the newly added skink species discovered along with "S. powelli" are facing extinction for the same reason. <P3-S3>  Skinks are unique and perhaps at a disadvantage among lizards as they produce a human-like placenta and have live birth. <P3-S4>  The average gestation period is suggested at one year and may be the cause for the skinks being an easy target to the mongoose, since they are larger and slower when pregnant. <P3-S5>  Other types of human activity, along with the deforestation in the Caribbean, are thought to have decreased overall species numbers, as well.