In What Ways Did Transhumant Herders And Pastoral Nomads Impact Settled Communities?

In What Ways Did Transhumant Herders And Pastoral Nomads Impact Settled Communities? Transhumant herders lived closer to agricultural settlements and migrated seasonally to pasture their livestock. They brought horses and new technologies that were useful in warfare and religious practices and languages. What is the difference in the definitions of pastoral nomads and transhumant herders?