Crayfish communities converge over succession in beaver pond metacommunities DOI
Jennifer G. Howeth, Jeffrey D. Lozier,

Charles Thomas Olinger

et al.

Freshwater Biology, Journal Year: 2024, Volume and Issue: 69(6), P. 843 - 858

Published: April 13, 2024

Abstract Metacommunity theory predicts that the relative importance of regional and local processes structuring communities will change over ecological succession. Determining effects these on taxonomic evolutionary diversity in spatially structured freshwater habitats different successional stages may greatly improve understanding maintenance across temporal spatial scales. In this study, we evaluated crayfish at scales pond metacommunities undergoing secondary succession from beaver ( Castor canadensis ) disturbance. Following theoretical predictions metacommunity ecology increasing succession, hypothesised a decline β stronger as older ponds provide less suitable habitat than streams. Crayfish species phylogenetic were reference headwater streams located three catchment regions. DNA sequences mitochondrial cytochrome oxidase I gene used to assign for community tests. Local contrasted ranging age 24 70 years function processes. Counter predictions, among categorised by class (24–39 years; 42–57 60–70 years) did not differ, but convergence occurred oldest ecosystems. composition differed between youngest ponds, resulting higher abundance ponds. The association environment was strongest decoupled with age. contrast, correlation intraspecific haplotype increased Among metacommunities, arose combination environmental drivers beaver‐constructed ecosystems dispersal limitation within catchments. This study represents first investigation response metacommunities. detection differential sorting suggests role further indicates future studies should acknowledge shaping Dispersal regions probably contributes evolution overall biodiversity. results support transition recent emphasis towards integration better identify regulators

Language: Английский

Crayfish communities converge over succession in beaver pond metacommunities DOI
Jennifer G. Howeth, Jeffrey D. Lozier,

Charles Thomas Olinger

et al.

Freshwater Biology, Journal Year: 2024, Volume and Issue: 69(6), P. 843 - 858

Published: April 13, 2024

Abstract Metacommunity theory predicts that the relative importance of regional and local processes structuring communities will change over ecological succession. Determining effects these on taxonomic evolutionary diversity in spatially structured freshwater habitats different successional stages may greatly improve understanding maintenance across temporal spatial scales. In this study, we evaluated crayfish at scales pond metacommunities undergoing secondary succession from beaver ( Castor canadensis ) disturbance. Following theoretical predictions metacommunity ecology increasing succession, hypothesised a decline β stronger as older ponds provide less suitable habitat than streams. Crayfish species phylogenetic were reference headwater streams located three catchment regions. DNA sequences mitochondrial cytochrome oxidase I gene used to assign for community tests. Local contrasted ranging age 24 70 years function processes. Counter predictions, among categorised by class (24–39 years; 42–57 60–70 years) did not differ, but convergence occurred oldest ecosystems. composition differed between youngest ponds, resulting higher abundance ponds. The association environment was strongest decoupled with age. contrast, correlation intraspecific haplotype increased Among metacommunities, arose combination environmental drivers beaver‐constructed ecosystems dispersal limitation within catchments. This study represents first investigation response metacommunities. detection differential sorting suggests role further indicates future studies should acknowledge shaping Dispersal regions probably contributes evolution overall biodiversity. results support transition recent emphasis towards integration better identify regulators

Language: Английский

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