If there is an increase in biodiversity, is there a decrease or an increase in sustainability?

Losses and gains in species diversity affect ecological stability1-7 and the sustainability of ecosystem functions and services8-13. ... That is, biodiversity can increase overall ecosystem stability when biodiversity is low, and decrease it when biodiversity is high, or the opposite with a U-shaped relationship.

The proton has a positive charge while the neutron has no charge they both make up the nucleus of the atom while the elections have a negative charge and surround the nucleus of the atom. the protons and electrons are used to calculate the atom's mass whereas the neutrons don't affect the mass