In a tropical mountain: Explain what ecological problems might happen if a frugivore bird and a nectarivore bird would change niches to a place that is already occupied by a specialist frugivore and a specialist nectarivore.

This is incorrect in the research done by Brown and Heske on seed predation impact

These animals can not be seed dispersers

This is incorrect about the plant Duranta mandonii

Imagine that an exotic species of squirrel invades a forest, displacing the native species. This exotic speices has better memory than the native one. Would seed dispersal in this forest be affected?

Watts et al. did not find out this in their research on floral visitors in the Andes

On the different sort of pollinators that were presented, this group is excluded

The Spectacled bear, a threatened bear in South America, rely on this plant species for food and disperse its seeds in the elfin forest of the Andes

On the research done about Diglossa and Metallura, this was a result

When you check either the  interaction network matrix or the interaction graph made in R, you can detect which species are specialists and which one generalists. How do you know which one is generalist and which specialist? Give an example for each one.