Loading...
Loading...

Go to the content (press return)

What does a zero mean? Understanding false, random and structural zeros in ecology

Author
Blasco-Moreno, A.; Perez-Casany, M.; Puig, P.; Morante, M.; Castells, E.
Type of activity
Journal article
Journal
Methods in Ecology and Evolution
Date of publication
2019-03-27
Volume
10
Number
7
First page
949
Last page
959
DOI
10.1111/2041-210X.13185
Project funding
Management and Analysis of Complex DATA
URL
https://authorservices.wiley.com/index.html#dashboard Open in new window
Abstract
1. Zeros (i.e. events that do not happen) are the source of two common phenomena in count data: overdispersion and zero-inflation. Zeros have multiple origins in a dataset: false zeros occur due to errors in the experimental design or the observer; structural zeros are related to the ecological or evolutionary restrictions of the system under study; and random zeros are the result of the sampling variability. Identifying the type of zeros and their relation with overdispersion and/or zero inflat...
Keywords
Enemy release hypothesis, False zeros, Random zeros, Structural zeros, Voerdispersion, Zero-inflation
Group of research
DAMA-UPC - Data Management Group

Participants

  • Blasco Moreno, Anabel  (author)
  • Perez Casany, Marta  (author)
  • Puig, Pedro  (author)
  • Morante, Maria  (author)
  • Castells, Eva  (author)