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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.
Salgado-Maldonado, Guillermo; Caspeta-Mandujano, Juan Manuel; Mendoza-Franco, Edgar F; Rubio-Godoy, Miguel; García-Vásquez, Adriana; Mercado-Silva, Norman; Guzmán-Valdivieso, Ismael; Matamoros, Wilfredo A.
Affiliation
  • Salgado-Maldonado G; Instituto de Biología Universidad Nacional Autónoma de México Ciudad de México Mexico.
  • Caspeta-Mandujano JM; Facultad de Ciencias Biológicas Universidad Autónoma del Estado de Morelos Cuernavaca Mexico.
  • Mendoza-Franco EF; EPOMEX Universidad Autónoma de Campeche Campeche Mexico.
  • Rubio-Godoy M; Instituto de Ecología Xalapa México.
  • García-Vásquez A; Instituto de Ecología Xalapa México.
  • Mercado-Silva N; Centro de Investigación en Biodiversidad y Conservación Universidad Autónoma del Estado de Morelos Cuernavaca Mexico.
  • Guzmán-Valdivieso I; Instituto de Ecología Xalapa México.
  • Matamoros WA; Instituto de Ciencias Biológicas Universidad de Ciencias y Artes de Chiapas Chiapas Mexico.
Ecol Evol ; 10(17): 9115-9131, 2020 Sep.
Article de En | MEDLINE | ID: mdl-32953050
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.
Mots clés

Texte intégral: 1 Collection: 01-internacional Base de données: MEDLINE Langue: En Journal: Ecol Evol Année: 2020 Type de document: Article

Texte intégral: 1 Collection: 01-internacional Base de données: MEDLINE Langue: En Journal: Ecol Evol Année: 2020 Type de document: Article
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