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Showing 1 to 20 of 175 for “"food source"”.
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Willingness to Pay for a Native Central Texan Plant as a Food Source
… specializing in either local and/or organic foods were the focus of the market samples. The survey to determine market viability was two-fold: the first part was an intercept survey of farmers' markets in multiple cities where individuals were asked to participate in the survey, and the …
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An Evaluation of Corn and Sorghum as a Winter Food Source for Ring-necked Pheasants
In many localities winter food plots of corn am/or sorghum are used to enhance the over-winter survival of ring-necked pheasants. Yet, few studies have been conducted evaluating the benefits provided by winter diets of com and/or sorghum to pheasants. 1be gut morphology and body condition of 110 …
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Effect of Temperature and Fungal Food Source on Five Isolates of Mycophagous Nematodes, and Observations on Their Feeding Habits
Made available in DSpace on 2014-12-09T18:06:25Z (GMT). No. of bitstreams: 1 6607788.pdf: 2740505 bytes, checksum: 278564e84169e58242c5299d1d2f6389 (MD5) Previous issue date: 1966
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Community Compostition and Microhabitats of Macroinvertebrates on Sandbars within the Lower Missouri River as a Food Source for Foraging Migratory Shorebirds
… and fish using these microhabitats as a source of food for migratory shorebirds. Nearly 40 species of shorebirds migrate between breeding and wintering grounds through interior North America every year. There are documented cases of significant threats to 36 species (72%) during …
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Testing the suitability of local seaweeds and formulated feed as a food source for abalone (Haliotis midae Linnaeus) in an Integrated Land-based Aquaculture System
… is emerging as a promising alternative energy source for many applications. Developed and developing countries, through research, are fast seeking a cheap and stable supply of energy for an ever-increasing number of energyconsuming portable devices. The research focus is to have DMFCs meet this …
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Comparison of Subterranean Termite (Rhinotermitidae: Reticulitermes) Gut Bacterial Diversity Within and Between Colonies and to Other Termite Species Using Molecular Techniques (ARDRA and 16S rRNA Gene Sequencing)
… could be manipulated by changing the termite's food source. Using ARDRA analysis, I found no evidence that changing the food source affected the termite gut bacterial diversity. In addition, changing the food source did not induce aggression in nestmates fed on different food sources. The third …
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Time-Memory Behavior Yields Energetically Optimal Foraging Strategy in Honey Bees.
… showed that foragers trained to collect food at a fixed time of day return the following day with a remarkable degree of time-accuracy. A series of field experiments revealed that not all foragers return to a food source on unrewarded test days. Rather, there exist two subgroups: …
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Food Habits of Black Crappies, White Crappies, Yellow Perch and White Suckers in a Small Impoundment in Northeastern South Dakota
… aquatic insects and fish were the most important food items found in stomach samples. Black crappies depended on zooplankton and aquatic insects as their major food source as they occurred in all samples and were major food items in 70 percent and 40 percent respectively. Insects, zooplankton and …
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Seizing a species : the story of the Great Salt Lake brine shrimp harvest
… the 80s, cysts were found to be an effective food source for aquaculture and a multimillion-dollar commercial harvesting industry quickly emerged. As the cysts rose in value, competition between harvesters grew fierce and annual catches soon began to drop. Environmentalists also became …
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Development of methodology for community level toxicity testing using the fathead minnow seven day survival-growth impairment test
… next two papers address the substitution of the food source currently used in the fathead minnow survival-growth impairment test (<i>Artemia</i>) with a freshwater food source (the rotiter, <i>Brachionus calyciflorus</i>). Along with the alga <i>Chlorella vulgaris</i> (producer), B. calyciflorus …
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C. elegans integrates food, stress, and hunger signals to coordinate motor activity
In the presence of a bacterial food source, the small nematode C. elegans greatly reduces its rate of locomotion. While mechanical agitation greatly stimulates the locomotion of well-fed animals on bacteria, it does not greatly stimulate the locomotion of food-deprived animals on bacteria. Thus, …
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A Community's Natural Resistance to Invasion by Cheatgrass and the Effects of Associational Herbivory
… found that (1) cheatgrass was a highly utilized food source for generalist grasshoppers, (2) among native plant species, the amount of herbivory corresponded with their total percent nitrogen and other plant traits, and (3) a native grass, Elymus elymoides, experienced higher herbivory in high- …
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Aspects of the energetics and renal physiology of some African arid-adapted rodents
… aspects of physiological adaptation and resource usage were examined in several species of arid-adapted African rodents: The effect of temperature on thermoregulation, metabolism, evaporative water loss and thermal conductance was studied in the North East African pigmy gerbil, gerbillus …
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Utility of Feeding Priority as a Measure of Dominance in Garnett's Bushbaby (<i>Otolemur garnettii</i>)
… feeding priority (i.e., first access to a food source) is a viable measure of dominance. Several measures of dominance were employed. Among the measures of dominance investigated were agonistic interactions, grooming, displacement, and deference of space. The results indicated that females …
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Acorn Contribution to Mammalian Energetics
Acorns are a highly nutritious food source for many mammal species including white-tailed deer (Odocoileus virginianus), white-footed mice (Peromyscus leucopus), eastern gray squirrels (Sciurus carolinenis), and fox squirrels (S. niger). Oak trees (genus (Quercus) produce variable amounts of acorn …
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Fast food : the transport of particulate organic matter over an upwelling event on the west coast of southern Africa
… supply of particulate organic matter (POM), as a food source for coastal consumers, were investigated between an exposed headland (Cape Columbine) and a sheltered bay (Elandsbaai) in the southern Benguela. Physical data, in agreement with previous studies, showed that Cape Columbine is situated …
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Diet and Nutrition of the Pronghorn Antelope
… Cultivated small grain crops were not a major food source of pronghorn. Differences in diet composition, plant groups, plant groups and time of use and plant group, area, month interaction were significant. Average in vitro digestion of 31 food plants was 51 percent. Mean digestion of grasses …
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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
… and their responses to environment and resources. Consequently, it is vital to better understand the diet of mustelids, identify spatial trends, use of habitats, and the effect of elevation and habitat type on capture rates of stoats and ship rats, so that trapping networks can be focussed …
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The use of stable isotope ratios of carbon and nitrogen to elucidate pelagic marine foodwebs of the Benguela and Agulhas Bank regions of South Africa
Isotope assessments of foodweb relationships amongst pelagic organisms may be influenced by their lipid content, since lipids are more depleted in ¹³C than other biochemical compounds. This is particularly important for plankton which show a greater decrease in δ¹³C caused by the failure to remove …
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Influences of a <i>Cladophora</i> Bloom on the Diets of <i>Amblema Plicata </i>and <i>Elliptio Dilatata</i> in the Upper Green River, Kentucky
… an increasingly common method to study aquatic food webs. Carbon (C) and nitrogen (N) are two of the most frequently employed elements in food web studies. Differences in natural abundance of<sup> 13</sup>C/<sup>12</sup>C can indicate which food sources are the basal sources of carbon …
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