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258 results for “freshwater mussel”
Figure 3 in Evolution of bilaterally asymmetrical larvae in freshwater mussels (Bivalvia: Unionoida: Unionidae)
Figure 3. Ancestral state reconstruction of larval morphologies in the Unionoida. Node numbers correspond to a schematic of the hypothesized ancestral larval morphology and pie charts depicting the proportional likelihood of ancestral states.
Supplementary material 4 from: Konopleva ES, Bolotov IN, Vikhrev IV, Inkhavilay K, Gofarov MYu, Kondakov AV, Tomilova AA, Chapurina YE, Van Do T, Pfeiffer JM, Lopes-Lima M, Bogan AE (2023) A freshwater mussel species reflects a Miocene stream capture between the Mekong Basin and East Asian rivers. Zoosystematics and Evolution 99(1): 29-43. https://doi.org/10.3897/zse.99.90784
Figure S1. Fossil-calibrated Unionidae tree, including the genus Cristaria, based on the complete data set of mitochondrial and nuclear gene sequences (five partitions: three codons of COI + 16S rRNA + 28S rRNA)
Supplementary material 1 from: Konopleva ES, Bolotov IN, Vikhrev IV, Inkhavilay K, Gofarov MYu, Kondakov AV, Tomilova AA, Chapurina YE, Van Do T, Pfeiffer JM, Lopes-Lima M, Bogan AE (2023) A freshwater mussel species reflects a Miocene stream capture between the Mekong Basin and East Asian rivers. Zoosystematics and Evolution 99(1): 29-43. https://doi.org/10.3897/zse.99.90784
List of sequences used in this study, including species names, localities, voucher numbers, and GenBank accession numbers
Trait-based and multi-scale approach provides insight on responses of freshwater mussels to environmental heterogeneity
<p>Our understanding of the factors driving the distribution of metacommunities at different scales can be obscured by high variation in species composition between sites and a lack of fine-scale distribution data. Trait-based approaches have long been used to better identify and examine ecological patterns. Most recent studies of riverine metacommunities examining trait-based patterns have focused on shorter-lived organisms. Here we focused on a group of longer-lived, sedentary riverine organisms, unionid freshwater mussels. The objective of this study was to examine how (1) the distribution of mussels with different life history strategies (trait-based approach) and (2) the relative importance of environmental and spatial factors (as a proxy for dispersal) would differ with spatial scale and position in the river; and to (3) further compare this with patterns derived from a taxonomic approach. Fine-scale distribution data of mussels and environmental factors were collected every 100 m in spatially extensive surveys in an up- and downstream segment (200 sites/20 km-segment) of a semi-arid river, making them some of the most spatially intensive surveys documented to date. A combination of redundancy analysis, asymmetric eigenvector mapping, and variation partitioning analyses revealed that more variation was explained by environmental factors where more environmental differences occur between sites. Where environmental heterogeneity was lower the amount of variation explained by smaller-scale spatial factors was higher, likely mostly associated with stochastic rather than dispersal processes. A higher amount of unexplained variation at the taxonomic level suggests that stochasticity may also play an important role in determining species composition. In contrast, different life history groups had a highly predictable distribution pattern driven by environmental heterogeneity, especially between river segments and mesohabitat, which was associated with different flow conditions. The role we predict for environmental heterogeneity and stochasticity in shaping the distribution of mussels in our study river likely also applies to other taxa and ecosystems at a spatial scale at which neither dispersal limitation nor mass effects occur. Thus, understanding the magnitude and extent of dispersal relative to the amount of environmental heterogeneity may be key for predicting metacommunity structure and dynamics for different organisms.</p>
Figure 9 in Hidden in the hills: phylogeny of the freshwater mussel genus Alasmidonta (Bivalvia: Unionidae) and description of a new species
Figure 9. Images of pseudocardinal teeth in Alasmidonta varicosa. Arrows point to pseudocardinal teeth. A, left valve of shell from Rocky River (Cape Fear drainage). B, right valve of shell from Rocky River (Cape Fear drainage). C, left valve of shell from Chattooga River (Savannah River drainage). D, right valve of shell from Chattooga River (Savannah River drainage). E, left valve of shell from Roaring River (Yadkin drainage). F, right valve of shell from Roaring River (Yadkin drainage).
Figure 2 in Hidden in the hills: phylogeny of the freshwater mussel genus Alasmidonta (Bivalvia: Unionidae) and description of a new species
Figure 2. Mitochondrial gene tree inferred with the dataset mtDNA_reduced. Terminal tips have been collapsed for visualization purposes. Nodes are labelled with ultrafast bootstrap support. A full tree is available in the Supporting Information (File S1). The scale is in substitutions per site.
Figure 8 in Hidden in the hills: phylogeny of the freshwater mussel genus Alasmidonta (Bivalvia: Unionidae) and description of a new species
Figure 8. Type series for Alasmidonta uwharriensis sp. nov. A, holotype, USNM 1675684. B, paratype, USNM 1675686. C, paratype, USNM 1675687. D,E, paratype, USNM 1675683. F, G, paratype, USNM 1675685. Abbreviations: aa, anterior adductor muscle; pa, posterior adductor mussel. Scale bar: 5 cm.
Figure 1 in Hidden in the hills: phylogeny of the freshwater mussel genus Alasmidonta (Bivalvia: Unionidae) and description of a new species
Figure 1. Terrain map of survey locations and the known range of Alasmidonta uwharriensis sp. nov. Red stream segments indicate the known range of the species from element occurrence data (North Carolina Wildlife Resources Commission and North Carolina Museum of Natural Sciences records) with ~1 km up- and downstream buffers. Black circles indicate survey locations where the species has not been recorded. Green shading represents conserved or protected land boundaries; grey shading represents developed areas. Inset A, the boundaries of North Carolina and surrounding states (grey shading represents the Yadkin–Pee Dee River basin; red shading represents the Uwharrie and Little River watersheds). Inset B, an example of typical habitat preferred by the species in Barnes Creek (September 2020; photograph credit M. A. Perkins).
Figure 5 in Hidden in the hills: phylogeny of the freshwater mussel genus Alasmidonta (Bivalvia: Unionidae) and description of a new species
Figure 5. Species tree of Alasmidonta s.s. inferred with STARBEAST. Nodes are labelled with posterior probabilities, and the scale is in substitutions per site.
Figure 6 in Hidden in the hills: phylogeny of the freshwater mussel genus Alasmidonta (Bivalvia: Unionidae) and description of a new species
Figure 6. External view of Alasmidonta uwharriensis sp. nov. shell from across its range. A, NCSM 102870 from Densons Creek. B, NCSM 47178 from Densons Creek. C, NCSM 29538 from Barnes Creek. D, NCSM 45651 from Densons Creek.
Figure 3 in Hidden in the hills: phylogeny of the freshwater mussel genus Alasmidonta (Bivalvia: Unionidae) and description of a new species
Figure 3. Concatenated tree inferred with the dataset mtDNA + ITS1. Terminal tips have been collapsed for visualization purposes. Nodes are labelled with ultrafast bootstrap support. A full tree is available in the Supporting Information (File S1). The scale is in substitutions per site.
Figure 4. ITS1 gene tree. Terminal tips have been collapsed for visualization purposes. Nodes are labelled with ultrafast bootstrap support. A in Hidden in the hills: phylogeny of the freshwater mussel genus Alasmidonta (Bivalvia: Unionidae) and description of a new species
Figure 4. ITS1 gene tree. Terminal tips have been collapsed for visualization purposes. Nodes are labelled with ultrafast bootstrap support. A full tree is available in the Supporting Information (File S1). The scale is in substitutions per site.
Figure 7 in Hidden in the hills: phylogeny of the freshwater mussel genus Alasmidonta (Bivalvia: Unionidae) and description of a new species
Figure 7. Images showing pseudocardinal teeth of Alasmidonta uwharriensis sp. nov. Arrows point to pseudocardinal teeth. A, USNM 1675683, left valve, umbo pointing away from camera. B, USNM 1675683, right valve, umbo away from camera. C, USNM 1675683, right valve, umbo towards camera. D, USNM 1675685, left valve, umbo pointing away from camera. E, USNM 1675685, right valve, umbo away from camera. F, USNM 1675685, right valve, umbo towards camera.
Genetic diversity in the threatened freshwater mussel Lampsilis powellii
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Data from: Phylogeographic and population genetic analyses reveal Pleistocene isolation followed by high gene flow in a wide- ranging, but endangered, freshwater mussel
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Data from: Unioverse: a phylogenomic resource for reconstructing the evolution of freshwater mussels (Bivalvia, Unionoida)
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Detection of freshwater mussels (Unionidae) using environmental DNA in riverine systems
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Trait-based and multi-scale approach provides insight on responses of freshwater mussels to environmental heterogeneity
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Data from: Past climate change drives current genetic structure of an endangered freshwater mussel species
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Data from: Comparison of population genetic patterns in two widespread freshwater mussels with contrasting life histories in western North America
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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