Null and neutral models for explaining spatial variations in intertidal invertebrate species diversity on rocky shores in Antofagasta town (23 degrees S, Chile)
Null and neutral models for explaining spatial variations in intertidal invertebrate species diversity on rocky shores in Antofagasta town (23 degrees S, Chile)
Authors
De Los Rios Escalante, Patricio
Esse, Carlos
Stella, Chelladurai
Adikesavan, Priya
Zuniga, Oscar
Esse, Carlos
Stella, Chelladurai
Adikesavan, Priya
Zuniga, Oscar
Profesor GuĆa
Authors
Date
Datos de publicaciĆ³n:
10.1163/15707563-bja10099
ANIMAL BIOLOGY,Vol.73,113-125,2023
ANIMAL BIOLOGY,Vol.73,113-125,2023
Tipo de recurso
Article
Keywords
Materia geogrƔfica
Collections
Abstract
The intertidal invertebrate community on rocky shores in northern Chile is characterised by a high species richness resulting from the high productivity of this ecosystem. The present study aims to do the first characterisation of invertebrate communities on rocky shores in Antofagasta town and sur-roundings (23 degrees S), using species co-occurrence and niche-sharing null models, analysis of similarities (ANOSIM) and nonmetric multidimensional scaling (NMDS). The null model results revealed that species associations are not structured, that the existing species do not have the same ecology, which would result in many repeated species by site, and that specificity in their ecological niches exists. The ANOSIM and NMDS revealed the absence of significant differences between sites with human intervention and without human intervention. The obtained results agree with the literature for north-ern and central Chilean and southern Peruvian rocky shores, and other coastal marine ecosystems with high productivity.