eng
International Academy of Ecology and Environmental Sciences
Computational Ecology and Software
2220-721X
2017-3-1
7
1
1
7
1
article
A new model to describe the relationship between species richness
and sample size
WenJun Zhang
1
2
School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; International Academy of Ecology and
Environmental Sciences, Hong Kong
In the sampling of species richness, the number of newly found species declines as increase of sample size, and the number of distinct species tends to an upper asymptote as sample size tends to the infinity. This leads to a curve of species richness vs. sample size. In present study, I follow my principle proposed earlier (Zhang, 2016), and re-develop the model, y=K(1-e^(-rx/K)), for describing the relationship between species richness (y) and sample size (x), where K is the expected total number of distinct species, and r is the maximum variation of species richness per sample size (i.e., max dy/dx). Computer software and codes were given.
http://www.iaees.org/publications/journals/ces/articles/2017-7(1)/relationship-between-species-richness-and-sample-size.pdf
sampling
species richness
sample size
curve
model