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1,549 results for “invertebrate”
Heatwave induced invertebrate predation reshapes the plankton community
<p>Climate change stressors including warming and heatwaves can alter zooplankton composition and dominance patterns in shallow lakes, which can disrupt ecosystem function and curtail ecosystem services. To understand such changes, we performed a mesocosm experiment with controls reflecting the present temperature conditions and a treatment reflecting a future climate change scenario, including heatwaves of 0-8°C. In the future climate scenario, the predatory invertebrate, <em>Mesostoma</em> exerted a strong top-down control particularly on <em>Daphnia</em>, resulting in a switch in the herbivore dominance to <em>Ceriodaphnia</em>. Cyclopoid copepods were the least affected taxa but showed tendencies to sustain longer into the winter at elevated temperatures. A complementary predation experiment revealed that <em>Mesostoma</em> feed at a higher rate on <em>Daphnia</em> than on <em>Ceriodaphnia</em> and cyclopoid copepods. In addition to the food-chain alterations, the algal biomass and cyanobacteria increased with warming which has considerable implications for management of shallow lakes.</p>
The role of bracket fungi in creating alpha diversity of invertebrates in the Białowieża National Park, Poland
<p>Bracket fungi are seen mainly as the cause of economic losses in forestry and their role as creators of biodiversity is relatively poorly understood. The effect of this group of fungi on the modification of biodiversity of invertebrates (spiders – Aranae, Opiliones – Opiliones, pseudoscorpions – Pseudoscorpionida, two groups of mites – Mesostigmata, and Oribatida, springtails – Collembola, and insects – Insecta) was investigated by analyzing 100 fruiting bodies of 10 species of bracket fungi divided into four DD classes. As well as defining the manner in which the degree of decay (DD) of the fruiting bodies determines the character of the invertebrate assemblages colonising them were the aims of this study. The material was collected at Białowieża National Park, which is considered to be the largest area of natural forests in the North European Plain. 16 068 invertebrate individuals classified into 224 species were obtained. Oribatid mites (12 543 individuals) constituted the largest group of individuals which were classified into 115 species with the most numerous <i>Carabodes femoralis </i>(8811 individuals). Representatives of this group of mites have been reported previously in the publications on bracket fungi, however, the contributions of Oribatida and other groups of invertebrates were not broadly compared. Moreover, the species such as <i>Hoploseius mariae</i> and <i>H. oblongus</i>, which were predominantly found in fruiting bodies of bracket fungi, have also been discerned. The invertebrate fauna differs depending on DD of the samples: in the more decayed samples a higher number of both individuals and species were recorded compared to the samples with lower DDs; however, this trend proved to be non-linear. The DCA analysis and cluster analysis revealed a similarity of the invertebrate assemblages from the 2 DD and 4 DD samples. They also indicated that the group 3 DD differed the most from all the other samples. The indicator species analysis identified species characteristic to individual DDs: for group 1 DD it was e.g. <i>Hoploseius oblongus</i>, for 2 DD – <i>Orchesella bifasciata</i>, for 3 DD – <i>Chernes cimicoides</i>, while for 4 DD – <i>Dinychus perforatus.</i></p>
Indirect control of decomposition by an invertebrate predator
<p>Datasets and R scripts for the above article.</p>
Meta-analysis of phenotypic plasticity in response to thermal treatments in invertebrates
<p>Populations must adapt to environmental changes to remain viable. Both evolution and phenotypic plasticity contribute to adaptation, with plasticity possibly being more important for coping with rapid change. Adaptation is complex in species with separate sexes, as the sexes can differ in the strength or direction of natural selection, the genetic basis of trait variation, and phenotypic plasticity. Many species show sex differences in plasticity, yet how these differences influence extinction susceptibility remains unclear. We first extend theoretical models of population persistence in changing environments and show that persistence is affected by sexual dimorphism for phenotypic plasticity, trait genetic architecture, and sex-specific selection. Our models predict that female-biased adaptive plasticity—particularly in traits with modest-to-low cross-sex genetic correlations— typically promotes persistence, though we also identify conditions where sexually monomorphic or male-biased plasticity promotes persistence. We then perform a meta-analysis of sex-specific plasticity under manipulated thermal conditions. Although examples of sexually dimorphic plasticity are widely observed, systematic sex differences are rare. An exception—cold resistance—is systematically female-biased and represents a trait wherein sexually dimorphic plasticity might elevate population viability in changing environments. We discuss our results in light of debates about the roles of evolution and plasticity in extinction susceptibility.</p>
Impacts on food web properties of island invertebrate communities vary between different human land uses
<p><span>Human land use is of growing concern for island ecosystems. Besides direct impacts on biodiversity, land uses can alter the functioning and structure of ecosystems. Central to this are impacts on food webs. The release of additional nutrients from human origin, habitat homogenization, or environmental filtering due to human land use can change the diet of individual consumer species (i.e., their trophic niches) and the distribution and overlap of trophic niches within a food web. However, it remains largely unclear whether the effects on food web properties vary between the different and predominant human land uses present on islands. Here, we investigated the impact of two dominant human land uses on small oceanic islands (i.e., urban and tourism development) and tested if and how different land uses on islands affect food web structure. To disentangle human land uses, we investigated islands, which were either privately owned by a tourist facility (i.e., exclusively tourism land use) or experienced urban development from the local population (i.e., urban land use), or remained uninhabited, serving as reference sites free of direct land use. Using stable isotope analysis, we show that isotope signature, trophic (isotopic) niches, and overall food web properties of the investigated island invertebrate communities were significantly changed under both land use regimes. While trophic diversity was reduced and trophic niche widths increased under tourism land use, the investigated food webs showed reduced trophic diversity at the food web base and a more uneven trophic niche distribution under urban land use. In summary, these findings show that different human land uses can have contrasting impacts on oceanic island food webs. As oceanic islands experience rapidly growing human land conversion, our results indicate that they may also face increasing yet unpredictable long-term changes in food web dynamics.</span></p>
Kings and Anderson Lakes invertebrate Data
<p>These are aquatic invertebrate samples taken pre and post rotenone treatment to remove a population of invasive northern pike. Pre-treatment samples were taken in August 2020. The rotenone project occurred October 2020. Post-treatment samples were taken August 2021.</p>
Aquatic Invertebrate Data
<p>These data were collected in association with a rotenone treatment of Kings and Anderson Lakes in Southcentral Alaska to remove a population of invasive northern pike. The treatment occurred October 2020. Samples were collected pre-treatment in August 2020, and post-treatment in August 2021.</p>
Distribution. Now restricted to the Channel Country of SW Queensland and the Lake Eyre Basin in NE South Australia. Descriptive notes. Head-body 95-120 mm, tail 105-160 mm, ear 23-29 mm, hindfoot 32-37 mm; weight 30-50 g. The Fawn Hopping Mouse has body form typical of hopping mice, with very long hindfeet, long tail with distal brush of longer hairs, very long ears, and large protruberant eyes. Dorsal fur is of variable color, from pale pinkish fawn to gray; ventral fur white. Unlike most other hopping mice, it has no throat pouch, but males have a glandular area of naked skin on the chest. Habitat. Occurs in low shrublands and tussock grasslands on stony ("gibber") plains and claypans. Shows marked habitat segregation from the Dusky Hopping Mouse (N. fuscus), which is closely associated with sandy substrates. Food and Feeding. The Fawn Hopping Mouse is mostly granivorous, but also eats other plant material (stems, leaves) and occasionally invertebrates. It uses succulent, salt-adapted plants around edges of claypans as a source of water. Breeding. Reproduction is probably largely opportunistic and aseasonal, with high reproductive output from near-continuous breeding after periods of high rainfall; reported littersize is 1-5, most commonly three; gestation period 38-43 days for nonlactating females. Females may mature later than other hopping mice, with reproductive maturity reached at about six months. Activity patterns. Terrestrial and nocturnal. Fawn Hopping Mice shelter during day in burrow systems that are typically simpler and shallower than those of other hopping mice. Movements, Home range and Social organization. Fawn Hopping Mice generally live singly or in small groups; typically uncommon within range, but population density may increase by an order of magnitude following periods of high rainfall. Status and Conservation. Classified as Near Threatened on The IUCN Red List. The Fawn Hopping Mouse has shown marked decline in range (estimated at greater than 50%), and presumably population size, since European settlement of Australia. This is mostlikely due to predation by the introduced house cat and Red Fox (Vulpes vulpes), and to habitat degradation associated with pastoralism. Bibliography. Brazenor (1934), Burbidge et al. (2008), Finlayson (1939), Gould (1853), Jackson & Groves (2015), Murray et al. (1999), Ogilby (1892), Thomas (1921h), Van Dyck & Strahan (2008), Waite (1898), Watts & Aslin (1981), Woinarski et al. (2014), Wood Jones (1925). in Muridae
Distribution. Now restricted to the Channel Country of SW Queensland and the Lake Eyre Basin in NE South Australia. Descriptive notes. Head-body 95-120 mm, tail 105-160 mm, ear 23-29 mm, hindfoot 32-37 mm; weight 30-50 g. The Fawn Hopping Mouse has body form typical of hopping mice, with very long hindfeet, long tail with distal brush of longer hairs, very long ears, and large protruberant eyes. Dorsal fur is of variable color, from pale pinkish fawn to gray; ventral fur white. Unlike most other hopping mice, it has no throat pouch, but males have a glandular area of naked skin on the chest. Habitat. Occurs in low shrublands and tussock grasslands on stony ("gibber") plains and claypans. Shows marked habitat segregation from the Dusky Hopping Mouse (N. fuscus), which is closely associated with sandy substrates. Food and Feeding. The Fawn Hopping Mouse is mostly granivorous, but also eats other plant material (stems, leaves) and occasionally invertebrates. It uses succulent, salt-adapted plants around edges of claypans as a source of water. Breeding. Reproduction is probably largely opportunistic and aseasonal, with high reproductive output from near-continuous breeding after periods of high rainfall; reported littersize is 1-5, most commonly three; gestation period 38-43 days for nonlactating females. Females may mature later than other hopping mice, with reproductive maturity reached at about six months. Activity patterns. Terrestrial and nocturnal. Fawn Hopping Mice shelter during day in burrow systems that are typically simpler and shallower than those of other hopping mice. Movements, Home range and Social organization. Fawn Hopping Mice generally live singly or in small groups; typically uncommon within range, but population density may increase by an order of magnitude following periods of high rainfall. Status and Conservation. Classified as Near Threatened on The IUCN Red List. The Fawn Hopping Mouse has shown marked decline in range (estimated at greater than 50%), and presumably population size, since European settlement of Australia. This is mostlikely due to predation by the introduced house cat and Red Fox (Vulpes vulpes), and to habitat degradation associated with pastoralism. Bibliography. Brazenor (1934), Burbidge et al. (2008), Finlayson (1939), Gould (1853), Jackson & Groves (2015), Murray et al. (1999), Ogilby (1892), Thomas (1921h), Van Dyck & Strahan (2008), Waite (1898), Watts & Aslin (1981), Woinarski et al. (2014), Wood Jones (1925).
Supplementary material 2 from: Glanville K, Schulz C, Tomlinson M, Butler D (2016) Biodiversity and biogeography of groundwater invertebrates in Queensland, Australia. Subterranean Biology 17: 55-76. https://doi.org/10.3897/subtbiol.17.7542
Biogeography of undescribed families and/or genera of groundwater invertebrates in Queensland, Australia. : Explanation note: This dataset contains a supplementary table of undescribed families and/or genera of groundwater invertebrates by higher rank in each subregion of Queensland, Australia.
Supplementary material 1 from: Glanville K, Schulz C, Tomlinson M, Butler D (2016) Biodiversity and biogeography of groundwater invertebrates in Queensland, Australia. Subterranean Biology 17: 55-76. https://doi.org/10.3897/subtbiol.17.7542
Biogeography of described families and genera of groundwater invertebrates in Queensland, Australia. : Explanation note: This dataset contains a supplementary table of described families and genera of groundwater invertebrates by higher rank in each subregion of Queensland, Australia.
Supplementary material 1 from: Knight L, Brancelj A, Hänfling B, Cheney C (2015) The groundwater invertebrate fauna of the Channel Islands. Subterranean Biology 15: 69-94. https://doi.org/10.3897/subtbiol.15.4792
Table 2: Invertebrate taxa recorded from wells and boreholes on Jersey: Explanation note: List of taxa recorded on Jersey.
Supplementary material 4 from: Knight L, Brancelj A, Hänfling B, Cheney C (2015) The groundwater invertebrate fauna of the Channel Islands. Subterranean Biology 15: 69-94. https://doi.org/10.3897/subtbiol.15.4792
Table 5: Invertebrate taxa recorded from wells and boreholes on Sark: Explanation note: List of taxa recorded on Sark.
Supplementary material 3 from: Knight L, Brancelj A, Hänfling B, Cheney C (2015) The groundwater invertebrate fauna of the Channel Islands. Subterranean Biology 15: 69-94. https://doi.org/10.3897/subtbiol.15.4792
Table 4: Invertebrate taxa recorded from wells and boreholes on Alderney: Explanation note: List of taxa recorded on Alderney.
Supplementary material 2 from: Knight L, Brancelj A, Hänfling B, Cheney C (2015) The groundwater invertebrate fauna of the Channel Islands. Subterranean Biology 15: 69-94. https://doi.org/10.3897/subtbiol.15.4792
Table 3: Invertebrate taxa recorded from wells, boreholes and springs on Guernsey: Explanation note: List of taxa recorded on Guernsey.
Data for Individual and combined impacts of carbon dioxide enrichment, heatwaves, flow velocity variability and fine sediment deposition on stream invertebrate communities
Open the record for dataset details and reuse information.
Data from: People's appreciation of colorful field margins in intensively used arable landscapes and the conservation of plants and invertebrates
<p>Sown field margins can improve the conservation of biodiversity in rural areas and can contribute to the aesthetics of rural landscapes, thereby potentially increasing public support for agri-environmental measures. However, these two functions do not necessarily coincide. This raises the question whether field margins that are appreciated for their contribution to landscape aesthetics also deliver on the conservation of biodiversity. We conducted choice experiments with different groups of citizens and collected biodiversity data in the Netherlands, to investigate if the number of colors and vegetation cover in field margins increased respondents' appreciation for them, and how these visual cues correlated with taxonomic diversity and abundance of plants and invertebrates in those field margins. Using manipulated photos, we also assessed whether the presence of colorful field margins in a range of different rural landscapes increased respondents' appreciation of those landscapes. Respondents preferred colorful margins with high vegetation cover and showed a preference for green rural landscapes with colorful field margins. The presence of colorful field margins increased landscape aesthetics most in the least appreciated landscapes. The number of colors correlated positively with the diversity of sown and spontaneous plant species, and overall invertebrate abundance and abundance of predatory invertebrates, but was not related to invertebrate diversity. Our results show for the first time that colorful field margins support both public appreciation and diversity of plants and abundance of ground-dwelling invertebrates, with potential advantages to farmers in terms of natural pest control, at least in intensively used agricultural landscapes. However, management practices to maintain a high number of colors over time may be detrimental for invertebrate diversity. To optimize the different functions, we recommend that field margin layouts should consist of a perennial part that is allowed to develop over time, in combination with a part that is managed for its colorfulness.</p>
Testing sunfish as zooplankton control agents for wastewater-algal cultivation: Nutrient, invertebrate, and algae data
<p>Wastewater-algal cultivation is a promising means of recovering polluting nutrients and converting them into useful algal biomass. However, open raceway ponds used for wastewater-algal cultivation are prone to contamination by zooplankton, which often severely reduces algal yields. We conducted an experiment to test the potential for bluegill sunfish to improve yields by suppressing zooplankton. We used cages to protect the fish from the paddlewheels in 230-L raceway ponds. In nine raceways, the cage surrounded the paddlewheel and fish, if present, had access to the remaining tank area. In another nine raceways, the cage was on the opposite side from the paddlewheel, and contained the fish when present. Six fishless controls were implemented across both cage placements. We filled the raceways with synthetic wastewater and local plankton, and one juvenile bluefill sunfish (aside from controls). After 19 days we sampled dissolved nutrients, algae, and invertebrates in each raceway. This dataset consists of four csv files containing data from laboratory analyses of these samples. The data include dissolved nutrients, algal dry weights, zooplankton and benthic invertebrate counts, algal biovolumes, and algal nutrient content for each of the 18 raceway ponds.</p>
Supplementary material 1 from: Mengual X (2018) A new species of Ischiodon Sack (Diptera, Syrphidae) from Madagascar. African Invertebrates 59(1): 55-73. https://doi.org/10.3897/afrinvertebr.59.24461
Table S1. Localities for the specimens of Ischiodon astales Mengual, sp. n. (Geographical coordinates) :
Fig. 2 in A strong backbone for an invertebrate group: anchored phylogenomics improves the resolution of genus-level relationships within the Lumbricidae (Annelida, Crassiclitellata)
Fig. 2 Left. Bayesian inference of the phylogenetic tree based on the concatenated sequences of the nuclear marker 28S rRNA and the mitochondrial 16S rRNA, NADH dehydrogenase (ND1), 12S rRNA, and COI. Right. Phylogenetic tree based on the same analysis but imple-
FIG. 1 in Response of American Toads and Their Invertebrate Prey to Experimentally Elevated Soil pH
FIG. 1. Schematic demonstrating the experimental design, location of forest plots within the three study forests, and location of 1 m2 subplots within a forest plot. (A) General layout of the experiment among our three scales of interest: study forest, forest plot, and subplot. (B) Typical arrangement of six forest plots within each of the three study forests. Within each forest, white rectangles represent the three forest plots with untreated, acidified soils while lined rectangles represent the three limetreated, elevated soil pH forest plots. (C) An enlarged example from (B) of one possible random arrangement of the three 1 m2 subplots (light gray boxes; not drawn to scale) located along the perimeter of a forest plot with untreated, acidified soil. Each 1 m2 subplot in each forest plot was assigned to one of three enclosure treatments: a) no enclosure, b) enclosure without American Toads, and c) enclosure with four American Toads.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
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.