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108 results for “feces”
Data from: Estimation of a killer whale (Orcinus orca) population's diet using sequencing analysis of DNA from feces
Estimating diet composition is important for understanding interactions between predators and prey and thus illuminating ecosystem function. The diet of many species, however, is difficult to observe directly. Genetic analysis of fecal material collected in the field is therefore a useful tool for gaining insight into wild animal diets. In this study, we used high-throughput DNA sequencing to quantitatively estimate the diet composition of an endangered population of wild killer whales (Orcinus orca) in their summer range in the Salish Sea. We combined 175 fecal samples collected between May and September from five years between 2006 and 2011 into 13 sample groups. Two known DNA composition control groups were also created. Each group was sequenced at a ~330bp segment of the 16s gene in the mitochondrial genome using an Illumina MiSeq sequencing system. After several quality controls steps, 4,987,107 individual sequences were aligned to a custom sequence database containing 19 potential fish prey species and the most likely species of each fecal-derived sequence was determined. Based on these alignments, salmonids made up >98.6% of the total sequences and thus of the inferred diet. Of the six salmonid species, Chinook salmon made up 79.5% of the sequences, followed by coho salmon (15%). Over all years, a clear pattern emerged with Chinook salmon dominating the estimated diet early in the summer, and coho salmon contributing an average of >40% of the diet in late summer. Sockeye salmon appeared to be occasionally important, at >18% in some sample groups. Non-salmonids were rarely observed. Our results are consistent with earlier results based on surface prey remains, and confirm the importance of Chinook salmon in this population's summer diet.
Data from: Feces nitrogen release induced by different large herbivores in a dry grassland
Large herbivores have pronounced effects on nutrient cycling in grasslands. These organisms are known to alter the quality and quantity of plant production as well as the amounts and quality of plant litter and animal wastes. The generalization that the relative quality of detritus inputs is enhanced by herbivores is well known, but how this process is affected by diet selection processing and feces production of different large herbivores remains largely unstudied. Here, we measured how these differences for cattle and sheep on a dry grassland might influence nitrogen (N) mineralization from feces. We found that cattle of larger body size tended to select low quality grass Stipa grandis as the major food source. In contrast, the subdominant grass Leymus chinensis with relatively high N content was a majority in the diet of smaller sheep, when palatable forbs were insufficient in the field. This diverse diet quality resulted in a C/N ratio of cattle feces that was higher than that of sheep feces. Relatively higher labile C availability in the cattle feces, namely relatively higher cellulose/hemicellulose contents, promoted microbial growth and in turn accelerated cattle feces decomposition. A surprise finding was that the feces from cattle mineralized about twice as much N as feces from sheep, despite the latter having slightly higher N content. From a grassland productivity perspective, increasing the proportion of large body-sized species in grazing herbivore assemblages perhaps is beneficial to forage productivity and nutrient recycling by the rapid degradation of feces.
Measured SCFAs from feces of infants
<p>This dataset is the average concentration of SCFAs in feces of infants. This dataset was used to study the differences of gut microbiome in early childhood with atopic dermatitis. The information of sample ID can be obtained from raw sequence dataset in ERA database and manuscript. </p>
Abundance of fungal species in slug feces collected in a temperate forest
<p>In the DNA barcoding study, a total of 288,630 OTU sequences were recovered from feces of eight field-captured slugs. Major taxa were Ascomycota (52.5%), Basidiomycota (46.1%), Mortierellomycota (0.2%), Chytridiomycota (0.1%) and Mucoromycota (0.1%) (Table 2). In Basidiomycota, 17 orders were detected (Table 2). The dominant order was Agaricales (66.1%), followed by Trichosporonales (29.7%) and Hymenochaetales (2.9%). In Agaricales, the dominant genera were <i>Armillaria</i> (35.7%) and <i>Gymnopilus</i> (29.8%). The dominance of Agaricales spores may be due to that the slugs used in this study were collected in September and October when fruiting bodies of Agaricales were abundant.</p>
Metabarcoding Passerine Feces Andorra
<p>Metabarcoding Passerine Feces ANML primer </p>
Supplementary material 2 from: Tanaka S, Kotaki T, Nishide Y, Ben-Hamouda A, Abdellaoui K, Ebbe MAB, Ely SO (2019) Effects of water extracts of feces from three locust species and various plants on oviposition and embryonic development in the desert locust Schistocerca gregaria. Journal of Orthoptera Research 28(2): 195-204. https://doi.org/10.3897/jor.28.34665
: Explanation note: Fig. S2. Effects of water extracts of leaves of various plants on the numbers of egg pods laid when presented to adult female desert locusts mixed with sand.
Supplementary material 1 from: Tanaka S, Kotaki T, Nishide Y, Ben-Hamouda A, Abdellaoui K, Ebbe MAB, Ely SO (2019) Effects of water extracts of feces from three locust species and various plants on oviposition and embryonic development in the desert locust Schistocerca gregaria. Journal of Orthoptera Research 28(2): 195-204. https://doi.org/10.3897/jor.28.34665
: Explanation note: Fig. S1. Effects of water extracts of desert locust frass after feeding on various plants on the numbers of egg pods laid when adult female desert locusts were presented with extracts mixed with sand.
Supplementary material 3 from: Tanaka S, Kotaki T, Nishide Y, Ben-Hamouda A, Abdellaoui K, Ebbe MAB, Ely SO (2019) Effects of water extracts of feces from three locust species and various plants on oviposition and embryonic development in the desert locust Schistocerca gregaria. Journal of Orthoptera Research 28(2): 195-204. https://doi.org/10.3897/jor.28.34665
: Explanation note: Fig. S3. Effects of water extracts of rescue grass-fed desert locust frass on antennal lengths of embryos (A, mean ± SD; n = 6–10).
Fig. 2 in Seasonal Variations in the Assembly of Dung Beetles (Coleoptera: Geotrupidae and Scarabaeidae) Attracted to Macaque Feces in Temperate Forests in Japan
Fig. 2. Monthly capture rates (number of traps in which dung beetles were captured/total number of trap nights) of dung beetles on Kinkazan and Yakushima Islands, Japan. No sampling was done during June and September on Kinkazan, and during May on Yakushima. Numbers above the bars are the number of trap nights.
FIGURE 1 in Lecanicillium coprophilum (Cordycipitaceae, Hypocreales), a new species of fungus from the feces of Marmota monax in China
FIGURE 1. Phylogenetic tree derived from Bayesian analysis based on a combined dataset sequence of ITS+SSU+TEF+ LSU+RPB1+RPB2, depicting the relationships of the new species Lecanicillium coprophilum with closely related taxa. The significant Bayesian posterior probability (≥95%) and Bootstrap percentages over 50% are shown on the respective branches. Simplicillium lanosoniveum CBS 704.86 was used as the outgroup taxon.
FIGURE 2 in Lecanicillium coprophilum (Cordycipitaceae, Hypocreales), a new species of fungus from the feces of Marmota monax in China
FIGURE 2. Lecanicillium coprophilum (CGMCC 3.18986). a. Strain grown on different media after 8 days of incubation at 30 °C; b–d. Phialides; e–f. Swollen hyphae; g–h. Conidia; i. Dictyochlamydospores. Bars: b–i = 10 μm.
Detection of Immunotoxic Gluten Peptides in Feces
ClinicalTrials.gov study NCT01478867. IPD Sharing: Not stated. Countries: 1. Publications: 5.
Transfer of Feces in Ulcerative Colitis 2
ClinicalTrials.gov study NCT05998213. IPD Sharing: YES. Countries: 1. Publications: 0.
The Microbiome of Sputum, Urine and Feces in Healthy Persons and Chronic Obstructive Pulmonary Disease (COPD) Patients
ClinicalTrials.gov study NCT03755505. IPD Sharing: NO. Countries: 1. Publications: 5.
Gut Health,Feces Characteristics and Growth of Infants Fed With a New Infant Organic Formula
ClinicalTrials.gov study NCT05695300. IPD Sharing: NO. Countries: 1. Publications: 6.
Data from: From feces to data: a metabarcoding method for analyzing consumed and available prey in a bird-insect food web
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Data from: Pellets of proof: first glimpse of the dietary composition of adult odonates as revealed by metabarcoding of feces
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Data from: Feces nitrogen release induced by different large herbivores in a dry grassland
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Symbiodiniaceae cell densities in feces of coral reef fish, sediments and seawater in Mo'orea, French Polynesia, July-August 2019
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Data from: Estimation of a killer whale (Orcinus orca) population’s diet using sequencing analysis of DNA from feces
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International Brain Laboratory public data
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OpenNeuro
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