Null and neutral models for explaining spatial variations in intertidal invertebrate species diversity on rocky shores in Antofagasta town (23°S, Chile)
In: Animal BiologyNúcleo de Estudios Ambientales UC Temuco, Temuco, Chile
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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 surroundings (23°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 northern and central Chilean and southern Peruvian rocky shores, and other coastal marine ecosystems with high productivity.
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Null and neutral models for explaining spatial variations in intertidal invertebrate species diversity on rocky shores in Antofagasta town (23°S, Chile)
In: Animal BiologyNúcleo de Estudios Ambientales UC Temuco, Temuco, Chile
Search for other papers by Patricio De los Ríos-Escalante in
Current site
Google Scholar
PubMed
Search for other papers by Carlos Esse in
Current site
Google Scholar
PubMed
Search for other papers by Chelladurai Stella in
Current site
Google Scholar
PubMed
Search for other papers by Priya Adikesavan in
Current site
Google Scholar
PubMed
Search for other papers by Oscar Zúñiga in
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PubMed
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 surroundings (23°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 northern and central Chilean and southern Peruvian rocky shores, and other coastal marine ecosystems with high productivity.
| All Time | Past 365 days | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 570 | 387 | 26 |
| Full Text Views | 151 | 4 | 1 |
| PDF Views & Downloads | 205 | 3 | 2 |
