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.
To assess whether cane toad eggs provide significant nutrition for conspecific tadpole growth and development, we reared toad tadpoles at ambient temperatures using 1000 ml plastic containers filled with 750 ml bore water in a randomized block design experiment.1) Toxin transfer. The amount and diversity of toxins (bufadienolides) decrease from the egg stage through larval development in cane toads, such that late-stage tadpoles and metamorphs have less effective chemical defences than earlier tadpoles or (especially) eggs (Hayes et al. 2009).