Biodiversity is deliberated as fundamental to the self-association of complex versatile systems, both in engrossing unsettling influences and in re-arranging the ecosystem after aggravation (Vannevel & Goethals, 2020) . More biodiversity means that there is increased genes and species in an ecosystem. The enlarged variety of genes and species results in a more robust ecosystem that can endure more stress from external sources. The invasive beetle species in both scenarios A and B are the external stress in the pond ecosystem. There is increased biodiversity in scenario B compared to A as there are three more different species. The three different species are not affected by the invasive beetles. Therefore, they overcome the beetles' stress, and their abundance growth compensates for the decrease of the two species eaten by beetles providing extensive shoreline coverage.
A ranch with multiple species of plants will have a more stable ecosystem compared to that which will have one or just a few. The enriched plant ecosystem will endure varying temperature and precipitation while providing forage across numerous years. This is because a decrease in abundance of one species will be compensated by an increase in another species' abundance. Also, a biological community of diverse species has a high probability of having species that contain traits that enable adaptation to a changing environment or that make them resistant to pests or diseases (Cleland, 2011) .
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A few times, biodiversity might have a few adverse outcomes on the sustainability of an ecosystem. For instance, natural pest regulation might decline with the enlarged biodiversity of pest controlling species. One reason is attributed to multiple species interaction whereby added species may prey on other pest-controlling species or may form substitute prey so that the targeted pest species is less preyed on. This leads to an increased infestation of crops by pests that may ultimately result in the whole harvest going bad (Vos, Grashof-Bokdam, & Opdam, 2014) .
References
Cleland, E. E. (2011). Biodiversity and Ecosystem Stability. Nature Education Knowledge .
Vannevel, R., & Goethals, P. L. (2020, February 5). Identifying Ecosystem Key Factors to Support Sustainable Water Management. Sustainability . Retrieved from doi:10.3390/su12031148
Vos, C. C., Grashof-Bokdam, C. J., & Opdam, P. F. (2014). Biodiversity and ecosystem services:does speciesdiversity enhance effectiveness and reliability? A systematic literature review. Statutory Research Tasks Unit for Nature & the Environment.