Species Evenness

The species richness is when we talk about the actual number of species in a community. For example, if you go to a bottom ground forest you might see only sugar maple. Therefore, the species richness is only 1. Shannon Index measures species diversity too, but takes into account species evenness. Species evenness is when the relative abundance of the species in that community are more similar to each other. So by knowing that you have more similar species, this allows you to more accurately determine the diversity of a system because if you have two species of maple that are very similar, then your diversity is still lower by using the Shannon Index rather than the species richness.

*Question 2. (4 pts). Give an example of a serviceshed. “A serviceshed is an area that includes both where an ecosystem services is generated and where the people benefiting from that service reside” (Kareiva and Marvier, 2015). Based on this definition, the first thing that comes to mind is strawberry plantations. Bees are very important to a lot of ecosystems because they pollinate so many
First, I think this because if a species has low reproduction, that species will have a very hard time maintaining its population during a “good” environment. If something bad occurs in the environment and there are few individuals in that community due to the low reproductive rate, then that community is going to have a much harder impact than communities with larger populations. Secondly, I say this because adaptations to the environment occur through different generations. Therefore, if a community is stricken with a food famine and the organisms have to evolve to stay alive, this might take much more time to evolve because the reproduction rates are so low compared to a community that reproduces faster will evolve to changes faster. Thus, creating impairing their ability to fight