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107 results for “Freshwater ecology”
FIGURE 2 in Lost species in Cameroon: rediscovery of the endangered freshwater crab, Louisea balssi (Bott, 1959) (Brachyura: Potamonautidae), with notes on its ecology and conservation
FIGURE 2. Louisea balssi (Bott, 1959), adult male CW 16.2 mm from Man's Crater Lake Manengouba, Cameroon (ZMB Crust. 30319). a, carapace dorsal view; b, carapace, frontal view; c, thoracic sternite. Scale bar equals 5 mm (a,b,c).
FIGURE 1 in Lost species in Cameroon: rediscovery of the endangered freshwater crab, Louisea balssi (Bott, 1959) (Brachyura: Potamonautidae), with notes on its ecology and conservation
FIGURE 1. Louisea balssi (Bott, 1959), adult male CW 16.2 mm from Man's Crater Lake Manengouba, Cameroon (ZMB Crust. 30319) (missing left periopod 5). Dorsal view of whole animal showing color when freshly collected. Scale bar equals 8 mm.
Data from: Ecological interactions and coexistence are predicted by gene expression similarity in freshwater green algae
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Data from: Ecological change alters the evolutionary response to harvest in a freshwater fish
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Interspecific differences and ecological correlations of energy metabolism traits in freshwater fishes
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Data from: Ecology of ontogenetic body-mass scaling of gill surface area in a freshwater crustacean
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Ecological impacts of unsustainable sand mining: Urgent lessons learned from a critically endangered freshwater cetacean
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Data from: Abundance inequality in freshwater communities has an ecological origin
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Data from: Ecological effects on metabolic scaling amphipod responses to fish predators in freshwater springs
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Data from: Trophic response to ecological conditions of habitats: evidence from trophic variability of freshwater fish
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Data from: Biodiversity and thermal ecological function: the influence of freshwater algal diversity on local thermal environments
The influence of temperature on diversity and ecosystem functioning is well studied; the converse however, i.e. how biodiversity influences temperature, much less so. We manipulated freshwater algal species diversity in microbial microcosms to uncover how diversity influenced primary production, which is well documented in biodiversity research. We then also explored how visible-spectrum absorbance and the local thermal environment responded to biodiversity change. Variations in the local thermal environment, that is, in the temperature of the immediate surroundings of a community, are known to matter not only for the rate of ecosystem processes, but also for persistence of species assemblages and the very relationship between biodiversity and ecosystem functioning. In our microcosm experiment, we found a significant positive association between algal species richness and primary production, a negative association between primary production and visible-spectrum absorbance, and a positive association between visible-spectrum absorbance and the response of the local thermal environment (i.e., change in thermal infrared emittance over a unit time). These findings support an indirect effect of algal diversity on the local thermal environment pointing to a hitherto unrecognized biodiversity effect in which diversity has a predictable influence on local thermal environments.
Data from: Apparent signal of competition limits diversification after ecological transitions from marine to freshwater habitats
Adaptive radiations are typically triggered when a lineage encounters a significant range of open niche space (ecological opportunity), stemming from i) colonization of new areas, ii) extinction of competitors, or iii) key innovations. The most well-known of these is the colonization of new areas, either through geographic dispersal or the invasion of a novel ecological habitats. One aspect of ecological opportunity that has rarely been studied, however, is whether the existence of potential competitors may act to limit evolutionary diversification in newly colonized adaptive zones. Here, we show that in multiple geographically independent reinvasions of freshwaters by marine Sea Catfishes (Ariidae), rates of diversification (estimated as a function of morphological disparity and cladogenesis) have been constrained by pre-existing high diversity freshwater lineages. Only one region (Australia-New Guinea), characterized by an otherwise-depauperate freshwater fauna, has an ariid invasion gained any substantial traction. This is true at both regional and community scales, suggesting that competitive constraints may be an important factor for adaptive radiation.
FIGURE 4 in Morphological and molecular evidence for a new species of freshwater crab of the genus Sudanonautes Bott, 1955 (Brachyura: Potamoidea: Potamonautidae) from Cameroon, with notes on its ecology
FIGURE 4. Habitat of Sudanonautes tiko n. sp. at Edea, Cameroon.
Three reference genomes for freshwater diatom ecology and evolution
<p>This repository contains the genome assemblies and gene models provided for "Three reference genomes for freshwater diatom ecology and evolution"</p> <p>Authors:</p> <p>Wade R. Roberts (email: wader [at] uark [dot] edu)</p> <p>Andrew J. Alverson (email: aja [at] uark [dot] edu)</p> <p> </p> <p>The Whole Genome Shotgun (WGS) projects are available from NCBI GenBank under accession JALLPB020000000 (C. tholiformis), JALLBG020000000 (D. pseudostelligera), and JALLAZ020000000 (P. triporus).<strong></strong></p> <p><br>The following files are included:</p> <p>Cyclostephanos tholiformis strain AJA228-03</p> <p> aja228-03.consensus.fasta</p> <p> aja228-03.consensus.gff3<br> <br> aja228-03.consensus.proteins.fasta</p> <p> aja228-03.consensus.combined_uniprot_annotation.csv</p> <p> aja228-03.consensus.panther_annotation.csv</p> <p> aja228-03.consensus.pfam_annotation.csv</p> <p> </p> <p>Discostella pseudostelligera strain AJA232-27</p> <p> aja232-27.consensus.fasta</p> <p> aja232-27.consensus.gff3<br> <br> aja232-27.consensus.proteins.fasta</p> <p> aja232-27.consensus.combined_uniprot_annotation.csv</p> <p> aja232-27.consensus.panther_annotation.csv</p> <p> aja232-27.consensus.pfam_annotation.csv</p> <p> </p> <p>Praestephanos triporus strain AJA276-08</p> <p> aja276-08.consensus.fasta</p> <p> aja276-08.consensus.gff3<br> <br> aja276-08.consensus.proteins.fasta</p> <p> aja276-08.consensus.combined_uniprot_annotation.csv</p> <p> aja276-08.consensus.panther_annotation.csv</p> <p> aja276-08.consensus.pfam_annotation.csv</p> <p> </p> <p>R code and phylogenetic tree to reproduce Figure 1 in the manuscript</p> <p> plot-figure-1.R</p> <p> busc.prot.concat.partition.rooted.tree</p> <p> </p>
Novel trophic subsidies from recreational angling transform the trophic ecology of freshwater fishes
<p>Angling is a globally popular leisure activity. There are over 31 million anglers in Europe, many of which target species of the Cyprinidae family in lowland freshwater ecosystems using methods generally involving bait (e.g. groundbaits, seeds and pellets), with large bait inputs possible in periods of high angling activity. While these bait inputs act as novel trophic subsidies ('angling subsidy'), substantial knowledge gaps remain on their influence on freshwater food-webs, including on fish trophic niche size and position. The effects of angling subsidies on the trophic ecology of cyprinid fish populations and their macroinvertebrate prey resources were investigated in field studies comparing waters of high angling activity ('subsidised fisheries') versus low angling activity ('non-subsidised fisheries'), and complemented by a pond experiment using two cyprinid species in subsidy absence/presence. Methods were based on stable isotope analysis, with angling subsidies being δ13C enriched and, generally, δ15N depleted compared to macroinvertebrate prey resources. In the subsidised fisheries, while there were minimal influences of the baits on macroinvertebrate stable isotope values, the effects of the subsidies on all fish species were to substantially δ13C enrich and δ15N deplete their isotopic niches. However, patterns of inter-specific niche divergence remained similar between the species in subsidy presence. In the pond experiment, there was strong isotopic association between the two fish species and macroinvertebrate putative prey in subsidy absence. In treatments that then exposed both species to angling subsidies, their stable isotope values shifted to enriched δ13C. Synthesis and application: Where angling activity is high, angling baits can provide strong trophic subsidies to freshwater fish, but with minimal effects on other trophic levels. Their regular input into freshwaters can provide some substantial benefits for fish (e.g. increased growth rates) and fisheries (e.g. elevated carrying capacity, higher catch rates), but can also increase nutrient enrichment and potentially raise ethical and fish welfare concerns. Thus, in allowing the use of these baits, especially in relatively high quantities, managers must balance the benefits they can deliver to fish and fisheries versus the adverse effects their use can have on freshwater organisms and ecosystem functioning.</p>
What can we learn from 100,000 freshwater forecasts? A synthesis from the NEON Ecological Forecasting Challenge: scores and targets
<p>This data publication contains the zipped scores parquet database and the targets used in the analysis for the NEON Challenge aquatics synthesis: scores.zip contains evaluated forecast scores, targets.zip contains in-situ water temperature and dissolved oxygen data generated for the Challenge, and Model_descriptions.csv contains the meta data for the submitted models used in the analysis. </p> <p><strong>scores</strong>: this is the primary dataset used in the manuscript. The database includes the scores (forecasts evaluated against observations).</p> <p><strong>targets</strong>: these are the data used to evaluate the forecast (observations) and were also available to forecast teams in near-real time. The R script included in this folder (aquatics_targets.R) is intended for reference only and cannot be run. </p> <p><strong>Model_descriptions.csv</strong>: table of summarised meta data on forecast model approaches submitted by forecast teams. This includes whether the forecasts include (1) or exclude (0) each source of uncertainty/initial conditions/model updating, which covariates are included, and the reported model class. </p>
Figure 4 in A review of amphidromous freshwater fishes of the Chocó biogeographical region (Colombia and Ecuador): diversity, ecology, fisheries and conservation
Figure 4. – Some amphidromous species from the rivers of the Chocó Biogeographic Region. A: Eleotris picta; B: Gobiomorus maculatus; C: Awaous transandeanus; D: Hemieleotris latifasciata; E: Sicydium hildebrandi.
Data from: Biodiversity and thermal ecological function: the influence of freshwater algal diversity on local thermal environments
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Novel trophic subsidies from recreational angling transform the trophic ecology of freshwater fishes
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Data from: Apparent signal of competition limits diversification after ecological transitions from marine to freshwater habitats
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.