Twenty years and counting with SADIE: Spatial Analysis by Distance Indices software and review of its adoption and use

By

Winder, Linton
Alexander, Colin
Griffiths, Georgianne
Holland, John
Wooley, Chris
Perry, Joe

Type

Article

Date of Publication

2019-1-21

Original Publication

One ecosystem : ecology and sustainability data journal

Volume

4

Pages

1--16

Subjects

count , SADIE , spatial analysis by distance indices , spatially-referenced

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/rethinkingecology.4.30890

 

Abstract

SADIE (Spatial Analysis by Distance Indices) is designed specifically to quantify patterns in spatially-referenced count-based data. It was developed for dealing with data that can be considered ‘patchy’. Such distributions are commonly found, for example, in insect populations where discrete patches of individuals are often evident. The distributions of such populations have ‘hard edges’, with patches and gaps occurring spatially. In these cases variance of abundance does not vary smoothly, but discontinuously. In this paper we outline the use of SADIE and provide free access to the SADIE software suite, establishing Rethinking Ecology as its permanent home. Finally, we review the use of SADIE and demonstrate its use in a wide variety of sub-disciplines within the general field of ecology.