Host diversity, phylogenetic relationships and local environmental factors drive infection patterns of a non-native parasite in tropical floodplain fish assemblages

Lima Junior, Dilermando Pereira; Luz, Sybelle Bellay da; Hoeinghaus, David Joseph; Bini, Luis Mauricio; Lima, Luciano Benedito de; Yotoko, Karla Suemy Clemente; Agostinho, Angelo Antonio

Host diversity, phylogenetic relationships and local environmental factors drive infection patterns of a non-native parasite in tropical floodplain fish assemblages

Data

2021

Autores

Lima Junior, Dilermando Pereira

Luz, Sybelle Bellay da

Hoeinghaus, David Joseph

Bini, Luis Mauricio

Lima, Luciano Benedito de

Yotoko, Karla Suemy Clemente

Agostinho, Angelo Antonio

Resumo

Biodiversity, biological traits of potential host species, and environmental conditions may mediate the emergence of new diseases. We assessed the relative influence of such factors on patterns of infection by Austrodiplostomum compactum (Digenea, Diplostomidae) in fish assemblages of the Upper Paraná River floodplain, Brazil. Multiple infection parameters were modeled at the community and species levels using phylogenetic diversity (PD), abundance (total and for a main reservoir species Plagioscion squamosissimus), local environmental conditions and phylogenetic distance from P. squamosissimus (Dis_Plag). In total, 108 fish species were collected and 28 were infected. At the community level, mean parasite abundance and mean infection intensity were positively associated with PD and the interaction between PD and environmental conditions, whereas host richness was negatively associated with PD. The complementary results indicate a biodiversity sampling effect rather than dilution effect. Environmental conditions often had the strongest coefficients in community-level models and mediated associations between infection parameters and other factors. At the species level, consistent negative associations between infection parameters and Dis_Plag indicate phylogenetic niche conservatism of parasites. Integration of community and species-level analyses demonstrates that phylogenetic diversity can affect host–parasite interactions in multiple ways, but that the associations depend on phylogenetic relationships and environmental conditions.

Palavras-chave

Invasive species, Disease ecology, Phylogenetic niche conservatism, Biodiversity, Dilution effect, Trematode

Citação

LIMA-JUNIOR, Dilermando Pereira et al. Host diversity, phylogenetic relationships and local environmental factors drive infection patterns of a non-native parasite in tropical floodplain fish assemblages. Hydrobiologia, Berlim, v. 848, p. 1041-1057, 2021. DOI: 10.1007/s10750-020-04509-2. Disponível em: https://link.springer.com/article/10.1007/s10750-020-04509-2. Acesso em: 5 jul. 2023.