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Showing 1 to 20 of 42 for “"Gut Contents"”.
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Blood Meal Analysis for the Detection and Identification of Host DNA in the Gut Contents of Ornithodoros coriaceus
… b, were used to detect host DNA in the gut contents of the soft tick vector. Polymerase chain reaction in combination with reverse line blot showed that the cytochrome b marker could accurately identify host DNA in ticks, fed experimentally on a known host blood, on day 175 post-feeding …
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Naturalization of Salt Marsh Restoration Sites in the Elizabeth River, Virginia, Assessed by Feeding Activity and Trophic Level of Mummichogs (<i>Fundulus Heteroclitus</i>)
… several salt marsh restorations. By examining gut contents and stable isotopes values (δ13C and δ15N) from mummichogs (Fundulus heteroclitus), the functional equivalency of restored salt marshes compared to natural marshes was measured. In July 2013 I collected mummichogs from three restored …
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Stable carbon and nitrogen isotope ratios in the shallow-water cape hake, merluccius capensis (castelnau) as indicators of trophic position and diet on the west and south coasts of South Africa
… South Africa, and five sites on the south coast. Gut content analyses show only the very recent diet of hake, therefore stable carbon and nitrogen isotope ratios were used to show the longer-term diet, integrated over the turnover time of the muscle tissue and bone collagen analysed. 13C/12C is …
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Acquisition and Retention of Bacterial Spores (Bacillus Atrophaeus) by Eight Insect Species
… consecutive times then homogenized to release gut contents, and the homogenate and first and fifth washes were cultured on Trypticase Soy Agar to determine recovery of BG spores. All species delivered spores but BG retention among species varied over time. Results demonstrate the potential of …
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Annual Reproductive Potential, Diet, and Growth of the Map Turtle, Graptemys Geographica (Le Sueur)) in a Missouri Stream
… size is discussed. Quantitative analysis of gut contents of 32 adult specimens indicate that Graptemys geographica is a carnivore specializing on mollusks; mollusks made up 94.1% by volume of all the food items eaten. Growth rates were determined from growth rings of the right abdominal …
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The Food Habits of the Amphipod Gammarus Pseudolimnaeus (Holsinger) in the Upper Region of Lake Taneycomo as Related to the Benthic Diatom (Bacillariophyceae) Microflora
Diatoms are found to be present in the gut contents of G. pseudolimnaeus collected from selected sites on Lake Taneycomo, Taney County, Missouri. Data presented are representative of collections made during the summer of 1987. Gut content analyses indicate that with respect to diatoms G. …
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The Isolation and Characterization of the Microbial Flora in the Alimentary Canal of <em>Gromphadorhina portentosa</em> Based on rDNA Sequences.
… of the actual diversity. This study uses the gut microflora of the Madagascar hissing roach, <em>Gromphadorhina portentosa</em>, as a model to examine this ecosystem. Isolated cultured bacteria were used to establish methods for identifying members of the microflora based on ribosomal RNA …
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Denitrification, Dissimilatory Nitrate Reduction, and Methanogenesis in the Gut of Earthworms (Oligochaeta): Assessment of Greenhouse Gases and Genetic Markers
The earthworm gut is an anoxic microzone in aerated soils, shows a high water content and high amounts of nitrite and organic carbon. These conditions are in marked contrast to those in the pre-ingested material (i.e., substrate) and ideal for microorganisms as those capable of fermentations, for …
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Resource Partitioning in Seven Species of Sympatric Intertidal Chitons (Mollusca: Polyplacophora)
… on the rock surface), and food {gut contents) were partitioned among 7 species of sympatric intertidal chitons: Mopaliidae - Mopalia hindsii, M. ciliata, ~· lignosa, M. muscosa, and Katharina tunicata; and Ischnochitonidae - Tonicella lineata and Cyanoplax dentiens. Species …
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Ecologia de uma taxocenose de peixes anuais (Cyprinodontiformes - Rivulidae) num brejo de restinga, Barra de São João, Rio de Janeiro, Brasil
… males, mainly in the dry seasons. Stomach and gut contents were examined, the individual food itens identified and analyzed according to frequency of occurrence method. The results indicate a large number of food categories (28). All species of rivulid fishes feed on insect larvae (mainly of …
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Trophic Ecology of Mesopelagic Fish Larvae and Juveniles in the Northern Gulf of Mexico
… and Phosichthyidae (Lightfishes). Gut contents were counted and identified to provide taxon-specific diet information. In addition, compound-specific stable isotope analysis of amino acids of nitrogen was performed on a subset of samples from the Family Paralepididae (Barracudinas) …
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Energy Reserves in Native Freshwater Mussels (Bivalvia:Unionidae) with and without Attached Zebra Mussels: Effects of Food Deprivation
… through glycogen analyses of mantle tissue and gut content analysis. Specimens of Amblema p. plicata (Say, 1817) and Quadrula p. pustulosa (I. Lea, 1831), collected from a heavily infested reach of the Ohio River in 1996, had significantly lower (p<0.05) glycogen levels than specimens collected …
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Diversity of larval tuna diets across the central equatorial Pacific
… foraging dynamics, we investigated larval tuna gut contents collected from the Phoenix Islands Protected Area (PIPA) during its no-take period between 2016 and 2019. Using 18S sequencing, we characterized prey biodiversity, composition, and selectivity across years and tuna genera. We found that …
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Gut content analysis of trapped mustelids and trend analysis for ship rats and stoats over six trapping seasons at Mount Taranaki : A thesis submitted in partial fulfilment of the requirements for the degree of Master of Natural Resource Management and Ecological Engineering at Lincoln University
… where they are most needed. In this study, the gut content of 31 stoats, nine weasels and five ferrets were examined from Mt Taranaki and 82 stoats, 25 weasels and 28 ferrets from the surrounding farmland (ring-plain). There was a significant difference in the gut contents of the mustelids …
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Snail grazing effects on the composition and metabolism of benthic diatom communities and subsequent effects on fish growth
… to selectively graze these mobile species. Their gut contents are enriched in carbon. nitrogen and algal pigment content by 20-40 times over the surface sediments. A small, non-significant, growth effect can be seen in the snails' response to density changes, but another marsh consumer, Fundulus …
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Biotic and abiotic interactions of deep-sea hydrothermal vent-endemic fish on the East Pacific Rise
… Thermichthys hollisi. Stable isotope and gut content analyses were used to elucidate prey choice and trophic relationships. Otolith chemical signatures were investigated to determine whether this technique could be utilized to examine life history strategy and habitat use. Chemical …
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Ecology of the Brown Marmorated Stink Bug (Hemiptera: Pentitomidae): Oviposition on Different Trees, Nymphal Development on Various Vegetable Hosts, and Assessment of a Bacterial Pathogen
… Serratia marcescens. Only one stink bug's gut contents had a confirmed infection of S. marcescens. Results from these studies offer insight into H. halys development on vegetable hosts and oviposition preferences on different host trees.
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Food selectivity of Bluegill and Green Sunfish Fry
… reared for 31 and 30 days, respectively. The gut contents of 1488 green sunfish and 1440 bluegill fry, representing day and night samples were examined. Diet composition was evaluated using the linear food selection index. Both green sunfish and bluegill fry selected for Cvclops vernalis and …
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TROPHIC DYNAMICS OF THE LAKE SUPERIOR FISH COMMUNITY
… surveys. To assess trophic linkages, gut contents were examined and biomass, count, and length were measured. Additionally, twelve common lean lake charr diet items were collected during summer 2022, analyzed for energy density, and used to estimate a population-level consumption of …
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Development of a suitable diet for endangered juvenile oyster mussels, Epioblasma capsaeformis (Bivalvia:Unionidae), reared in a captive environment
… sites on the Clinch River and sacrificed for gut content and biochemical composition analyses in summer. Feces and pseudofeces from live river-collected juveniles were examined seasonally for algae, detritus, and bacteria to qualitatively determine diet of specimens. Two feeding trials also …
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