Farewell Messages!

BYE GUYS!!!! SEE YOU IN OCTOBER!!!!!!!!!!!!!!!!!!!!!!!!!!! :)

Calculating diversity

Abundance: The actual number of organisms of a species per unit of area or volume (Density).

Relative Abundance: The proportion or percentage of all organisms in a community or sample that are a particular species (Species Eveness).

Sampling effort: With a “small” sample rare species are not likely to be included. With a larger sample, rare species are more likely to be included.

Species Diversity: Two factors define species diversity. Species Richness, which is the number of species in community and Species Evenness, which is the Relative Abundance of the species.

Diversity: A community dominated by one or two species is considered to be less diverse than one in which several different species have a similar abundance. As species richness and evenness increase, so diversity increases.

Simpson's Diversity Index: The Simpson's Index (D) is a measure of diversity which takes into account both richness and evenness. Simpson's Index (D) measures the probability that two individuals randomly selected from a sample will belong to the different species (or some category other than species). The formula for calculating D is

D = 1- [Sum(n / N)²]

n = the total number of organisms of a particular species

N = the total number of organisms of all species

The value of D ranges between 1 and 0. With this index, 1 represents infinite diversity and 0, no diversity. That is, the bigger the value of D, the greater the diversity.

Wow, it's the last day...
I learned so much in the past three weeks, from the meaning to biodiveristy, to how to use this spreadsheet to analyze stuff, I feel utterly overwhelmed. I LEARNED SO MUCH!!! I laughed so much, heard so much, saw so much, I am a totally different person that I was before this Team!!!
Eric C.

A Great Learning Experience

I am sad to see you all leave :( but I must admit, I did learn a lot from the last 3 weeks. I learned how to use different Google programs such as Google+ and Google Docs. I also learned about Urban Biodiversity and now I truly understand Biodiversity. I am glad I was able to experience this new subject and I will miss you all!

~Student 08

This whole time of being in the Urban Biodiversity Network at AMNH I have learned about averages and standard deviation. I have also learned how to use the technology such as blogger and gmail. I have learned about making a spreadsheet and calculating how diverse plants are in a certain plot. Overall I have learned a lot that I didn't know before.

Its almost over!!!!!

as this last day of lang end i see how much i have learned about biodiversity. i think its important subject in this current day age. so thanks Mike an Ariam i had grate three weeks with ubn.

this was fun

This research team has been a lot of fun so far. I learned how complex biodiversity is. I had no idea that it was so cool. I am looking forward to continuing in the fall.
Liam K.