And what is it that motivates people to persevere in a common cause or mission? Values, of course, especially when they are understood, shared by, and reflected in their leaders. This article examines the role of leadership in culture change, the kinds of change needed to promote reform in our health care system. Culture.
Cane toads (Bufo marinus) originally came from Mexico, Central America, and South America. They ranged from the Rio Grande to the Amazon basin. They have been introduced to many islands in the Caribbean and Pacific, to Florida, Japan, and Papua New Guinea.
1 1. 2  The invasion of cane toads through Australia kills many large predators, that are poisoned when they try to eat large, highly toxic toads.3  2. 4  But most native species are not affected by toads, because they soon learn not to eat them; or else have a pre-existing tolerance to the toadâs poison. But most native species are not affected by toads, because they soon learn not to eat them; or else have a pre-existing tolerance to the toadâs poison. 2  3. 3  The decrease in numbers of large predators benefits many smaller species, which increase in numbers after cane toads arrive in an area.