Cryptic Species Complex Shows Population-Dependent, Rather than Genotype-Dependent Tolerance to a Neonicotinoid DOI
Jana Kabus,

Vanessa Hartmann,

Berardino Cocchiararo

et al.

Published: Jan. 1, 2024

Cryptic species are rarely considered in ecotoxicology, resulting misleading outcomes when using a single morphospecies that encompasses multiple cryptic species. This oversight contributes to the lack of reproducibility ecotoxicological experiments and promotes unreliable extrapolations. The important question ecological differentiation sensitivity is tackled, substantial knowledge gap vulnerability individual within complex. In times agricultural intensification frequent use pesticides, there an urgent need for better understanding complexes possible differences adaptive processes. We used complex aquatic amphipod Gammarus roeselii, which comprises at least 13 genetic lineages spans from small-scale endemic Greece large-scale distributed central Europe. exposed eleven populations belonging four neonicotinoid thiacloprid acute toxicity assay. recorded various environmental variables each habitat assess potential pre-exposure contaminants. Our results showed differed up 4-fold their tolerances. lineage identity had rather minor influence, suggesting especially recent substance (or similar substances) triggered mechanisms. extent these mechanisms equally all needs be addressed future. study provides strong evidence selection operates population level, highlighting toxicant population-specific. has significant implications design methodology, as it underscores importance considering variability not only complexes, but also populations. Recognizing addressing population-specific vulnerabilities crucial terms conservation, on different adaptation pathways.

Language: Английский

Competitive interaction in headwaters: slow upstream migration leads to trophic competition between native and non-native amphipods DOI Creative Commons
Lars Pelikan, Eglė Šidagytė‐Copilas, Andrius Garbaras

et al.

NeoBiota, Journal Year: 2024, Volume and Issue: 90, P. 193 - 216

Published: Feb. 1, 2024

The spread of non-native species is one the outcomes global change, threatening many native communities through predation and competition. Freshwater ecosystems are particularly affected by turnover with species. One that has been established in Central Europe for decades – or even a few centuries amphipod crustacean Gammarus roeselii . Although G. nowadays widespread major river systems, there have recent reports its into smaller streams typically inhabited fossarum Due to their leaf shredding ability, takes up key position headwater streams. This raises important question, what extent can equivalently take over this function. To answer we collected both from nine different sites mid-mountain system (Kinzig catchment, Hesse, Germany) investigated functional similarity using combination stable isotope analysis, gut content morphology. hardly differed morphological characteristics, only females showed differences some traits. Gut analysis indicated broad dietary overlap, while isotopes higher trophic observed overlap could intensify interspecific competition allow larger more predaceous replace future as keystone However, differentiation also shows co-existence occur occupying niches. Moreover, wide range exploited resources demonstrate omnivorous lifestyle , which likely help succeed rapidly changing environments.

Language: Английский

Citations

2
Chronic metal contamination shapes the size structure of Gammarus fossarum populations in French headwater rivers DOI
Auréline Lalouette, Davide Degli Esposti,

C Colomb

et al.

Ecotoxicology, Journal Year: 2024, Volume and Issue: 33(7), P. 772 - 785

Published: July 11, 2024

Language: Английский

Citations

2
Uncovering the Grinnellian niche space of the cryptic species complex Gammarus roeselii DOI Creative Commons
Jana Kabus, Sarah Cunze,

Andrea Dombrowski

et al.

PeerJ, Journal Year: 2023, Volume and Issue: 11, P. e15800 - e15800

Published: Aug. 3, 2023

Background The discovery of cryptic species complexes within morphologically established comes with challenges in the classification and handling these species. We hardly know to what extent a complex differ ecologically. Such knowledge is essential assess vulnerability individual genetic lineages face global change. abiotic conditions, i.e ., Grinnellian niche that lineage colonizes, provides insights into how diverse ecological requirements each evolutionary are complex. Material Methods sampled amphipod Gammarus roeselii from Central Germany Greece identified based on cytochrome c oxidase subunit I (COI) barcoding. At same time, we recorded various parameters local pollution using series vitro assays then characterize niches morphospecies ( sensu lato) as well lineage. Local can be significant factor explaining current future distributions times increasing production release chemicals surface waters. Results five spatially structured our dataset differed varying degrees their niche. In some cases, were very similar despite geographical separation lineages, supporting hypothesis conservatism while being allopatrically separated. other found small was clearly different those lineages. Conclusion variable overlaps dimensions make G. promising model system further study ecological, phenotypic functional differentiation this general, results show genetically distinct molecular operational taxonomic units (MOTUs) significantly between other, calling for closer inspection conservational biodiversity context.

Language: Английский

Citations

6
Cryptic species complex shows population-dependent, rather than lineage-dependent tolerance to a neonicotinoid DOI Creative Commons
Jana Kabus,

Vanessa Hartmann,

Berardino Cocchiararo

et al.

Environmental Pollution, Journal Year: 2024, Volume and Issue: 362, P. 124888 - 124888

Published: Sept. 10, 2024

Language: Английский

Citations

1
Wastewater and warming effects on aquatic invertebrates: experimental insights into multi-level biodiversity consequences DOI

Iva Kokotović,

Vojtěch Kolář, Marko Rožman

et al.

Water Research, Journal Year: 2024, Volume and Issue: 267, P. 122496 - 122496

Published: Sept. 23, 2024

Language: Английский

Citations

1
Cryptic Species Complex Shows Population-Dependent, Rather than Genotype-Dependent Tolerance to a Neonicotinoid DOI
Jana Kabus,

Vanessa Hartmann,

Berardino Cocchiararo

et al.

Published: Jan. 1, 2024

Cryptic species are rarely considered in ecotoxicology, resulting misleading outcomes when using a single morphospecies that encompasses multiple cryptic species. This oversight contributes to the lack of reproducibility ecotoxicological experiments and promotes unreliable extrapolations. The important question ecological differentiation sensitivity is tackled, substantial knowledge gap vulnerability individual within complex. In times agricultural intensification frequent use pesticides, there an urgent need for better understanding complexes possible differences adaptive processes. We used complex aquatic amphipod Gammarus roeselii, which comprises at least 13 genetic lineages spans from small-scale endemic Greece large-scale distributed central Europe. exposed eleven populations belonging four neonicotinoid thiacloprid acute toxicity assay. recorded various environmental variables each habitat assess potential pre-exposure contaminants. Our results showed differed up 4-fold their tolerances. lineage identity had rather minor influence, suggesting especially recent substance (or similar substances) triggered mechanisms. extent these mechanisms equally all needs be addressed future. study provides strong evidence selection operates population level, highlighting toxicant population-specific. has significant implications design methodology, as it underscores importance considering variability not only complexes, but also populations. Recognizing addressing population-specific vulnerabilities crucial terms conservation, on different adaptation pathways.

Language: Английский

Citations

0
Cryptic Species Complex Shows Population-Dependent, Rather than Genotype-Dependent Tolerance to a Neonicotinoid DOI
Jana Kabus,

Vanessa Hartmann,

Berardino Cocchiararo

et al.

Published: Jan. 1, 2024

Cryptic species are rarely considered in ecotoxicology, resulting misleading outcomes when using a single morphospecies that encompasses multiple cryptic species. This oversight contributes to the lack of reproducibility ecotoxicological experiments and promotes unreliable extrapolations. The important question ecological differentiation sensitivity is tackled, substantial knowledge gap vulnerability individual within complex. In times agricultural intensification frequent use pesticides, there an urgent need for better understanding complexes possible differences adaptive processes. We used complex aquatic amphipod Gammarus roeselii, which comprises at least 13 genetic lineages spans from small-scale endemic Greece large-scale distributed central Europe. exposed eleven populations belonging four neonicotinoid thiacloprid acute toxicity assay. recorded various environmental variables each habitat assess potential pre-exposure contaminants. Our results showed differed up 4-fold their tolerances. lineage identity had rather minor influence, suggesting especially recent substance (or similar substances) triggered mechanisms. extent these mechanisms equally all needs be addressed future. study provides strong evidence selection operates population level, highlighting toxicant population-specific. has significant implications design methodology, as it underscores importance considering variability not only complexes, but also populations. Recognizing addressing population-specific vulnerabilities crucial terms conservation, on different adaptation pathways.

Language: Английский

Citations

0