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3 results on '"repeatability of community structure"'

1. Competition from sea to mountain: Interactions and aggregation in low‐diversity monogenean and endohelminth communities in twospot livebearer Pseudoxiphophorus bimaculatus (Teleostei: Poeciliidae) populations in a neotropical river

Author

Guillermo Salgado‐Maldonado, Juan Manuel Caspeta‐Mandujano, Edgar F. Mendoza‐Franco, Miguel Rubio‐Godoy, Adriana García‐Vásquez, Norman Mercado‐Silva, Ismael Guzmán‐Valdivieso, and Wilfredo A. Matamoros

Subjects
assembly, competition, interspecific aggregation, intraspecific aggregation, repeatability of community structure, species coexistence, Ecology, QH540-549.5
Abstract

Abstract The role of interspecific interactions in structuring low‐diversity helminth communities is a controversial topic in parasite ecology research. Most parasitic communities of fish are species‐poor; thus, interspecific interactions are believed to be unimportant in structuring these communities. We explored the factors that might contribute to the richness and coexistence of helminth parasites of a poeciliid fish in a neotropical river. Repeatability of community structure was examined in parasitic communities among 11 populations of twospot livebearer Pseudoxiphophorus bimaculatus in the La Antigua River basin, Veracruz, Mexico. We examined the species saturation of parasitic communities and explored the patterns of species co‐occurrence. We also quantified the associations between parasitic species pairs and analyzed the correlations between helminth species abundance to look for repeated patterns among the study populations. Our results suggest that interspecific competition could occur in species‐poor communities, aggregation plays a role in determining local richness, and intraspecific aggregation allows the coexistence of species by reducing the overall intensity of interspecific competition.

Published
2020
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2. Competition from sea to mountain: Interactions and aggregation in low‐diversity monogenean and endohelminth communities in twospot livebearer Pseudoxiphophorus bimaculatus (Teleostei: Poeciliidae) populations in a neotropical river.

Author

Salgado‐Maldonado, Guillermo, Caspeta‐Mandujano, Juan Manuel, Mendoza‐Franco, Edgar F., Rubio‐Godoy, Miguel, García‐Vásquez, Adriana, Mercado‐Silva, Norman, Guzmán‐Valdivieso, Ismael, and Matamoros, Wilfredo A.

Subjects
*COMPETITION (Biology), *POECILIIDAE, *COEXISTENCE of species, *OSTEICHTHYES, *FISH communities, *COMMUNITIES
Abstract

The role of interspecific interactions in structuring low‐diversity helminth communities is a controversial topic in parasite ecology research. Most parasitic communities of fish are species‐poor; thus, interspecific interactions are believed to be unimportant in structuring these communities.We explored the factors that might contribute to the richness and coexistence of helminth parasites of a poeciliid fish in a neotropical river.Repeatability of community structure was examined in parasitic communities among 11 populations of twospot livebearer Pseudoxiphophorus bimaculatus in the La Antigua River basin, Veracruz, Mexico. We examined the species saturation of parasitic communities and explored the patterns of species co‐occurrence. We also quantified the associations between parasitic species pairs and analyzed the correlations between helminth species abundance to look for repeated patterns among the study populations.Our results suggest that interspecific competition could occur in species‐poor communities, aggregation plays a role in determining local richness, and intraspecific aggregation allows the coexistence of species by reducing the overall intensity of interspecific competition. [ABSTRACT FROM AUTHOR]

Published
2020
Full Text
View/download PDF

3. Competition from sea to mountain: Interactions and aggregation in low‐diversity monogenean and endohelminth communities in twospot livebearer Pseudoxiphophorus bimaculatus (Teleostei: Poeciliidae) populations in a neotropical river

Author

Adriana García-Vásquez, Edgar F. Mendoza-Franco, Norman Mercado-Silva, Wilfredo A. Matamoros, Guillermo Salgado-Maldonado, Juan Manuel Caspeta-Mandujano, Ismael Guzmán-Valdivieso, and Miguel Rubio-Godoy

Subjects
0106 biological sciences, assembly, species coexistence, Drainage basin, 010603 evolutionary biology, 01 natural sciences, Intraspecific competition, 03 medical and health sciences, lcsh:QH540-549.5, species richness, Relative species abundance, Ecology, Evolution, Behavior and Systematics, repeatability of community structure, Original Research, 030304 developmental biology, Nature and Landscape Conservation, intraspecific aggregation, Poeciliidae, 0303 health sciences, geography, Teleostei, geography.geographical_feature_category, Ecology, biology, Community structure, Interspecific competition, biology.organism_classification, interspecific aggregation, species saturation of communities, Species richness, lcsh:Ecology, competition
Abstract

The role of interspecific interactions in structuring low‐diversity helminth communities is a controversial topic in parasite ecology research. Most parasitic communities of fish are species‐poor; thus, interspecific interactions are believed to be unimportant in structuring these communities.We explored the factors that might contribute to the richness and coexistence of helminth parasites of a poeciliid fish in a neotropical river.Repeatability of community structure was examined in parasitic communities among 11 populations of twospot livebearer Pseudoxiphophorus bimaculatus in the La Antigua River basin, Veracruz, Mexico. We examined the species saturation of parasitic communities and explored the patterns of species co‐occurrence. We also quantified the associations between parasitic species pairs and analyzed the correlations between helminth species abundance to look for repeated patterns among the study populations.Our results suggest that interspecific competition could occur in species‐poor communities, aggregation plays a role in determining local richness, and intraspecific aggregation allows the coexistence of species by reducing the overall intensity of interspecific competition., The results of this work suggest that interspecific competition can occur in species‐poor, nonsaturated communities among specialist dominant species. Our analyses suggest also that aggregation is an important factor to determine local richness of parasites in fish populations and that intraspecific aggregation allows the coexistence of species in the same host population by means of reducing the overall intensity of competition.

Published
2020

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