Anna Mangan

1 Introduction Most of the Pacific Islands lacked terrestrial mammals prior to human arrival (Hess et al. 2019), but over the centuries, anthropogenic movement has accidentally or intentionally introduced many species to these remote island systems. Among the Hawaiian Islands, 19 mammals have been introduced including rodents (Rodentia), mongoose (Urva auropunctata), cattle (Bos taurus), and pigs (Sus scrofa) (Tomich 1986; Hess 2016).