Can the biotic component of ecosystems make a difference in the ways that global change impacts wellbeing, and in the way we mitigate these impacts?

Biodiversity, or the biotic component of ecosystems, has the potential to influence strongly the impacts of global change, and the ways in which people mitigate them. However, much knowledge is still lacking as to in what cases this is important, and how it operates, and in which cases (regions, processes, scenarios) the biodiversity of ecosystems is irrelavant to climate change impacts and mitigation.