Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
Does anyone know what Pielou's evenness means? Or rather what does the change in value mean (bigger or smaller)?
 2 years ago
 2 years ago
Does anyone know what Pielou's evenness means? Or rather what does the change in value mean (bigger or smaller)?
 2 years ago
 2 years ago

This Question is Closed

PanumguyBest ResponseYou've already chosen the best response.1
The closer the number gets to 1, the more even the quantities of the different species are, ie. if the there are 100 crows and 103 foxes the number will be close to one, whereas if there are a lot more foxes than crows the number will be smaller than one. One is the maximum value, since Hmax is the highest evenness possible in the population.
 2 years ago

sangeeta_kumariBest ResponseYou've already chosen the best response.0
Pielou's or Species evenness refers to how close in numbers each species in an environment are. Mathematically it is defined as a diversity index, a measure of biodiversity which quantifies how equal the community is numerically. So if there are 40 foxes, and 1000 dogs, the community is not very even. But if there are 40 foxes and 42 dogs, the community is quite even. The evenness of a community can be represented by Pielou's evenness index: Where is the number derived from the Shannon diversity index and is the maximum value of , equal to: E is constrained between 0 and 1. The less variation in communities between the species, the higher E is. Other indices have been proposed by authors where eg. Hurlburt's evenness index. S is the total number of species.
 2 years ago

TranceNovaBest ResponseYou've already chosen the best response.1
Thanks for the detailed answers guys :)
 2 years ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.