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Belliard, Jérôme; Thomas, Romuald Berrebi dit; Monnier, David

doi:10.1023/a:1003752215677

Cited by 21 publications

(1 citation statement)

References 32 publications

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“…higher flow velocities are typically found in high elevation gravelbed streams, while vegetated areas are more often associated with lowland lentic habitats). Thus, species inhabiting upstream stretches are typically rheophilic, lithophilic, and intolerant, whereas those from lower reaches are more frequently limnophilic, phytophilic, and tolerant (Belliard et al, 1999). Specifically, GLMs revealed positive relationships between elevation and traits such as rheophily and lithophily, and negative relationships between stream order and invertivory and rheophily.…”

Section: Trait Correlation With Elevation and Tests Of Correlated Evo...mentioning

confidence: 96%

Phylogenetic signal and evolutionary relationships among traits of inland fishes along elevational and longitudinal gradients

et al. 2022

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1. Understanding the main drivers of species distributions is one of the main goals of ecology. However, the relationships between traits and elevational and longitudinal distributions in inland fishes, as well as their underlying evolutionary processes, have been less investigated. Thus, we aimed to quantify and assess the relationships among several types of traits resulting from species' evolutionary histories by measuring their phylogenetic signal across inland fishes of the Iberian Peninsula. We also aimed to test for correlated evolution of these traits with elevation and stream size (i.e. stream order), to test whether a species' suite of traits and their elevational and longitudinal niche tend to evolve together.2. We compiled data on 23 fish biological and ecological traits for 30 inland fish species present in the Iberian Peninsula. We quantified their phylogenetic signal using four complementary indices (Pagel's λ, Blomberg's K, and Abouheif's C mean for continuous and −D + 1 for binary traits). We used both phylogenetic and non-phylogenetic methods to evaluate the relationship among traits and their relationship with elevation and stream order.3. We found a significant phylogenetic signal for 65% of the studied traits.Phylogenetic signals were quite variable, but we did not detect clear differences between continuous and binary traits or among trait types (i.e. morphological, trophic, reproductive, and habitat use). Evolutionary models revealed that elevational and longitudinal distribution showed little evidence for directional trends of evolution. Hence, species elevational and longitudinal niches tend to resemble to those of the common ancestor. 4. Many fish traits were inter-correlated as revealed by phylogenetic methods, indicating correlated evolution of pairs of traits. For example, reproductive traits such as maximum longevity, fecundity and age at maturity tended to evolve together with fish maximum length. Consequently, certain orders of fish showed shared suites of traits.

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Section: Trait Correlation With Elevation and Tests Of Correlated Evo...mentioning

confidence: 96%

Phylogenetic signal and evolutionary relationships among traits of inland fishes along elevational and longitudinal gradients

et al. 2022

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Spatial metrics and methods for riverscapes: quantifying variability in riverine fish habitat patterns

Pichon¹,

Gorges²,

Baudry³

et al. 2008

Environmetrics

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SUMMARYDefining the optimal configuration of all habitats required during a life cycle, called vital habitat, is a necessary step for effective management of riverine fishes and restoration of river habitats. Landscape ecology provides many metrics and methods to study the composition and configuration of habitats, but they need to be adapted for fishes in river environments or riverscapes. For example, hydrographic distance seems more appropriate than Euclidean distance for measuring distances between vital habitats in riverscapes. We adapted some metrics to assess habitats patterns of a threatened cyprinid species (Barbus barbus) for natural and artificial riverscapes of the Seine river, France. Composition metrics provided essential quantification of the relative abundance of the vital habitats, whereas configuration metrics were relevant to quantify their spatial arrangement and spatial relationships. Nearest-neighbor hydrographic distance was useful to evaluate the influence of flow variability in the natural riverscape, but was not relevant to discriminate the artificial riverscape from the natural one. Conversely, a proximity index revealed high fragmentation in the artificial riverscape. Spatial habitat relationships between feeding and resting habitats, evaluated with a moving window analysis, provided a map of daily activity patches and emphasized the gaps in the biological continuity of the riverscape. The spatial metrics and methods we adapted to the particularities of the Seine river allowed us to detect natural and artificial variability in fish habitat patterns. They should help in evaluating impacts of habitat alteration and isolation and prioritize preservation and restoration policies in human-impacted rivers.

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Ecotoxicology Methods of Reservoir Water Using Fish

Sultan¹,

Pei²

2023

Reservoir Ecotoxicology

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Cited by 21 publications

References 32 publications

Phylogenetic signal and evolutionary relationships among traits of inland fishes along elevational and longitudinal gradients

Phylogenetic signal and evolutionary relationships among traits of inland fishes along elevational and longitudinal gradients

Spatial metrics and methods for riverscapes: quantifying variability in riverine fish habitat patterns

Ecotoxicology Methods of Reservoir Water Using Fish

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