Carrion cycling in food webs: comparisons among terrestrial and
... by Britton and Morton 1994), there are few data concerning the fate of carrion in freshwater habitats (Minshall et al. 1991). Thus, in this paper we concentrate on marine systems, particularly abyssal ecosystems which comprise 50% of the earth’s surface (Smith et al. 2008); although many of the g ...
... by Britton and Morton 1994), there are few data concerning the fate of carrion in freshwater habitats (Minshall et al. 1991). Thus, in this paper we concentrate on marine systems, particularly abyssal ecosystems which comprise 50% of the earth’s surface (Smith et al. 2008); although many of the g ...
How body size mediates the role of animals in nutrient cycling in
... because predicting indirect effects in food webs contains much more uncertainty (Wootton, 1994). A point mentioned by Vanni (2002), that we expand on here, is the role of body size in controlling the degree to which animals contribute to ecosystem nutrient fluxes. Body size may control animal-mediat ...
... because predicting indirect effects in food webs contains much more uncertainty (Wootton, 1994). A point mentioned by Vanni (2002), that we expand on here, is the role of body size in controlling the degree to which animals contribute to ecosystem nutrient fluxes. Body size may control animal-mediat ...
Dry period management of mastitis
... When ewes are treated with antibiotics at dry-off, there is a strong likelihood this treatment will rid the mammary gland of any existing infections. This is because the antibiotic will be in contact with the bacteria for weeks, rather than – as in the case of treating during lactation – only for a ...
... When ewes are treated with antibiotics at dry-off, there is a strong likelihood this treatment will rid the mammary gland of any existing infections. This is because the antibiotic will be in contact with the bacteria for weeks, rather than – as in the case of treating during lactation – only for a ...
Conservation agriculture and carbon sequestration
... the atmosphere and a pool of N that cycles among biota and soil in the form of nitrate (NO3-), nitrite (NO2-) and ammonium (NH4+) (Figure 1b). Human activity has doubled the N transfer from the atmosphere to biologically available pools (mainly through industrial N fixation) with associated increase ...
... the atmosphere and a pool of N that cycles among biota and soil in the form of nitrate (NO3-), nitrite (NO2-) and ammonium (NH4+) (Figure 1b). Human activity has doubled the N transfer from the atmosphere to biologically available pools (mainly through industrial N fixation) with associated increase ...
clicking here - The Fish Site
... Aquaculture production has grown enormously in recent years and among that Penaeid shrimps are one of the most important cultured species worldwide especially in Asia due to their high economic value and export. Shrimps are infected by numerous pathogenic microbes which caused high mortality. The ex ...
... Aquaculture production has grown enormously in recent years and among that Penaeid shrimps are one of the most important cultured species worldwide especially in Asia due to their high economic value and export. Shrimps are infected by numerous pathogenic microbes which caused high mortality. The ex ...
CE5504 – Surface Water Quality Modeling
... The detrital pool contains carbon, nitrogen and phosphorus and releases soluble forms of these materials as it undergoes microbial decomposition. Detritus is classified as being labile if it readily undergoes decomposition and refractory if it does not undergo decomposition or if it does so less rea ...
... The detrital pool contains carbon, nitrogen and phosphorus and releases soluble forms of these materials as it undergoes microbial decomposition. Detritus is classified as being labile if it readily undergoes decomposition and refractory if it does not undergo decomposition or if it does so less rea ...
Soil Organic Matter - Lakeview Organic Grain
... fungal hyphae, dead animals and microbes. In a healthy soil, this component is quite a mixture, coming from many different sources. Active organic material provides nutrition for a diverse population of fungi, bacteria, plants and other organisms. Third, there is the ‘very dead’ organic matter. As a ...
... fungal hyphae, dead animals and microbes. In a healthy soil, this component is quite a mixture, coming from many different sources. Active organic material provides nutrition for a diverse population of fungi, bacteria, plants and other organisms. Third, there is the ‘very dead’ organic matter. As a ...
Trophic Ecology: Bottom-Up and Top
... decomposer food webs Bottom-up forces in decomposer food webs Decomposers, primarily bacteria and fungi, but also detritivorous invertebrates and vertebrates, consume dead organic matter to obtain energy, and in the process of decomposition, break down macromolecules into smaller ones and excrete nu ...
... decomposer food webs Bottom-up forces in decomposer food webs Decomposers, primarily bacteria and fungi, but also detritivorous invertebrates and vertebrates, consume dead organic matter to obtain energy, and in the process of decomposition, break down macromolecules into smaller ones and excrete nu ...
Insect population dynamics meets ecosystem ecology: effects of
... also provide a source of nutrients for decomposers that can then accelerate the decomposition of natural litter fall. For example, Schowalter & Sabin (1991) reported increases in litter arthropod diversity and abundance following defoliation of saplings. However, in their study, effects of defoliato ...
... also provide a source of nutrients for decomposers that can then accelerate the decomposition of natural litter fall. For example, Schowalter & Sabin (1991) reported increases in litter arthropod diversity and abundance following defoliation of saplings. However, in their study, effects of defoliato ...
Nitrogen Fixer leaf litter loses mass faster than non
... Although the nitrogen-fixer leaf litter lost great mass over the four months of this study than non-nitrogen fixers, the Douglas fir(DF) litter, a non-nitrogen fixer species, lost the greatest amount of mass. Other studies have shown the ‘home field advantage’ of native litter in over 25 sites world ...
... Although the nitrogen-fixer leaf litter lost great mass over the four months of this study than non-nitrogen fixers, the Douglas fir(DF) litter, a non-nitrogen fixer species, lost the greatest amount of mass. Other studies have shown the ‘home field advantage’ of native litter in over 25 sites world ...
Soil and vegetation nutrient response to bison carcasses in Białowie
... et al. 2002) around the carcass sites, declining along a gradient the further from the carcass. Even in relatively homogeneous environments, such as the prairie and tundra, ungulate carcass sites remained disturbed patches for several years, supporting different vegetation than the surroundings. In g ...
... et al. 2002) around the carcass sites, declining along a gradient the further from the carcass. Even in relatively homogeneous environments, such as the prairie and tundra, ungulate carcass sites remained disturbed patches for several years, supporting different vegetation than the surroundings. In g ...
Stoichiometry of nutrient recycling by vertebrates in a tropical stream
... body P contents and low P excretion rates (Figs 1a and 2a). At the other extreme, the two tadpole families (one species each) had low body P and high P excretion rates. There was relatively little variation among families in body C or N content, or in body C : N ratio (Figs 2b, c, f). However, body ...
... body P contents and low P excretion rates (Figs 1a and 2a). At the other extreme, the two tadpole families (one species each) had low body P and high P excretion rates. There was relatively little variation among families in body C or N content, or in body C : N ratio (Figs 2b, c, f). However, body ...
Functional and ecological consequences of saprotrophic fungus
... Saprotrophic fungi are key regulators of nutrient cycling in terrestrial ecosystems. They are the primary agents of plant litter decomposition and their hyphal networks, which grow throughout the soil–litter interface, represent highly dynamic channels through which nutrients are readily distributed ...
... Saprotrophic fungi are key regulators of nutrient cycling in terrestrial ecosystems. They are the primary agents of plant litter decomposition and their hyphal networks, which grow throughout the soil–litter interface, represent highly dynamic channels through which nutrients are readily distributed ...
Flavobacterium Sp Pseudomonas putida
... toxic activity towards different plants, microorganisms and invertebrates. Microorganisms, being in intimate contact with the soil environment, are considered to be the best indicators of soil pollution. In addition, biodegradation is one of the most key processes for PAHs to disappear from the envi ...
... toxic activity towards different plants, microorganisms and invertebrates. Microorganisms, being in intimate contact with the soil environment, are considered to be the best indicators of soil pollution. In addition, biodegradation is one of the most key processes for PAHs to disappear from the envi ...
Mixed Liquor Volatile Suspended Solids
... commonly treated through disinfection in wastewater Photosynthesis: A process in which organisms that use chlorophyll, convert carbon dioxide and inorganic substances into oxygen and new plant material in the presence of sunlight. Polymer: A long chain molecule that is formed by many molecules of lo ...
... commonly treated through disinfection in wastewater Photosynthesis: A process in which organisms that use chlorophyll, convert carbon dioxide and inorganic substances into oxygen and new plant material in the presence of sunlight. Polymer: A long chain molecule that is formed by many molecules of lo ...
Objectives Nuclides Nuclear Stability Radioactivity Radioactive Decay
... • Where N = number of unstable atoms • Decay constant is characteristic of each radionuclide ...
... • Where N = number of unstable atoms • Decay constant is characteristic of each radionuclide ...
Unit 6 Microorganisms & Fungi
... They are classified according to their structure & method of reproduction The 4 main groups of fungi are: common molds, sac fungi, club fungi, & the imperfect fungi ...
... They are classified according to their structure & method of reproduction The 4 main groups of fungi are: common molds, sac fungi, club fungi, & the imperfect fungi ...
Effects of grazing and fire on soil carbon in dry African Savanna
... Exclosures are viable options to restore degraded lands Carbon loss by erosion Target multiple benefits: practices that sequester carbon in grasslands often enhance productivity, biodiversity, etc. ...
... Exclosures are viable options to restore degraded lands Carbon loss by erosion Target multiple benefits: practices that sequester carbon in grasslands often enhance productivity, biodiversity, etc. ...
Processing a Crime Scene for Insect Evidence 23
... link a suspect to a victim or crime scene, determine if a body was moved, locate injury sites, determine exposure to drugs or toxins, and provide evidence of neglect or abuse. The five stages of decomposition include fresh, bloated, active decay, advanced decay, and dry decay; stages of decompositio ...
... link a suspect to a victim or crime scene, determine if a body was moved, locate injury sites, determine exposure to drugs or toxins, and provide evidence of neglect or abuse. The five stages of decomposition include fresh, bloated, active decay, advanced decay, and dry decay; stages of decompositio ...
Fungi - New Page 1
... IV. Fungi 4. Ecological Roles - decomposers: Fungi decompose liginin and cellulose, which most free-living bacteria can’t digest. * antibiotics - mycorrhizae: fungal symbiotes of certain plants. The fungus increases the absorbance area of roots dramatically, and passes water and nutrients to the pl ...
... IV. Fungi 4. Ecological Roles - decomposers: Fungi decompose liginin and cellulose, which most free-living bacteria can’t digest. * antibiotics - mycorrhizae: fungal symbiotes of certain plants. The fungus increases the absorbance area of roots dramatically, and passes water and nutrients to the pl ...
Zooplankton body composition - Association for the Sciences of
... large data set was excluded from this data compilation because the animals were not explicitly blotted prior to weighing and the wet : dry mass ratios reported were significantly and systematically higher than found in all other studies for similar species. Dry masses are measured following drying ‘ ...
... large data set was excluded from this data compilation because the animals were not explicitly blotted prior to weighing and the wet : dry mass ratios reported were significantly and systematically higher than found in all other studies for similar species. Dry masses are measured following drying ‘ ...
Tutorial 5 File
... composted completely and quality analysis certificate is available with the material. If immature compost is applied to the soil, even after entering into the soil, it will undergo decomposition inside the soil, by taking nutrients from the soil, because of this, standing crop will get affected. 8 ...
... composted completely and quality analysis certificate is available with the material. If immature compost is applied to the soil, even after entering into the soil, it will undergo decomposition inside the soil, by taking nutrients from the soil, because of this, standing crop will get affected. 8 ...
The Effects of Wastewater Treatment Sludge on the Decomposition
... Composting is used to describe the biological anaerobic auto-heated decomposition and transformation process of organic material (Ylva). The desired operating temperature for composting ranges from 50 degrees to 70 degrees Celsius. The temperature is important because it describes different phases o ...
... Composting is used to describe the biological anaerobic auto-heated decomposition and transformation process of organic material (Ylva). The desired operating temperature for composting ranges from 50 degrees to 70 degrees Celsius. The temperature is important because it describes different phases o ...
Decomposition
Decomposition is the process by which organic substances are broken down into a much simpler form of matter. The process is essential for recycling the finite matter that occupies physical space in the biome. Bodies of living organisms begin to decompose shortly after death. Although no two organisms decompose in the same way, they all undergo the same sequential stages of decomposition. The science which studies decomposition is generally referred to as taphonomy from the Greek word τάφος taphos, meaning tomb.One can differentiate abiotic from biotic decomposition (biodegradation). The former means ""degradation of a substance by chemical or physical processes, e.g. hydrolysis. The latter one means ""the metabolic breakdown of materials into simpler components by living organisms"", typically by microorganisms.