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Eocene habitat shift from saline to freshwater promoted Tethyan amphipod diversification
TLDR
The genus Gammarus provides an excellent aquatic case supporting the hypothesis that ecological opportunities promote diversification and the habitat shift from saline to freshwater led to an increased diversification rate.
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Cryptic species as a window into the paradigm shift of the species concept
TLDR
It is time for incorporating multicriteria species approaches aiming to understand speciation across space and taxa, thus allowing integration into biodiversity conservation while accommodating for species uncertainty.
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The importance of naming cryptic species and the conservation of endemic subterranean amphipods
TLDR
The South European cryptic complex of the subterranean amphipod Niphargus stygius sensu lato is scrutinized, showing that it consists of 15 parapatric and sympatric species, which are described using molecular diagnoses and are as evolutionarily distinct as average nominal species of the same genus.
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A molecular test for cryptic diversity in ground water: how large are the ranges of macro-stygobionts?
TLDR
Data suggest that small ranges of macro-stygobionts are the rule, and ranges over 200 km are extremely rare, and a considerable increase in overall diversity at the regional and continental scale and a strong decrease in faunal similarities among regions, coupled with greater endemism.
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A phylogenetic perspective on 160 years of troubled taxonomy of Niphargus (Crustacea: Amphipoda)
TLDR
This study is the first comprehensive phylogenetic treatment of the chiefly subterranean group in 160 years of its taxonomic history, providing a framework for future studies on niphargid systematics, the evolution of endemism and cryptic diversity in subterranean environments, the mechanisms leading to exceptional morphological heterogeneity, historical biogeography, and applied ecological issues.
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The late blooming amphipods: global change promoted post-Jurassic ecological radiation despite Palaeozoic origin
TLDR
The profound Late Mesozoic global changes triggered a tipping point in amphipod evolution by unlocking ecological opportunities that promoted radiation into many new niches and provides a solid, time-calibrated, evolutionary framework to accelerate research on this overlooked, yet globally important taxon.
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Geographic variation in range size and beta diversity of groundwater crustaceans: insights from habitats with low thermal seasonality
Aim Three broad mechanisms have been proposed to explain geographic variation in species range size: habitat area/heterogeneity, climate seasonality and long-term climate variability. However, it…
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ECOMORPHOLOGICAL CONVERGENCE OF CAVE COMMUNITIES
TLDR
It is demonstrated that under the selection pressure of extreme environment, the ecomorphological structure of communities can converge, and morphological diversity does not result from adaptive response to temporal and ecological gradients, but from fine‐level niche partitioning.
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Perspectives: Cryptic species diversity should not be trivialised
TLDR
It is argued that the result that the proportion of cryptic species is almost evenly distributed among major metazoan taxa and biogeographical regions is the consequence of methodological error, and it is shown that the degree of cryptic diversity between meetazoan phyla varies up to two orders of magnitude.
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The late blooming amphipods: global change promoted post-Jurassic ecological radiation despite Palaeozoic origin.
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