Search Results - "Pulley, S."

Tracing catchment fine sediment sources using the new SIFT (SedIment Fingerprinting Tool) open source software by Pulley, S., Collins, A.L.

“…The mitigation of diffuse sediment pollution requires reliable provenance information so that measures can be targeted. Sediment source fingerprinting…”
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Sediment source fingerprinting as an aid to catchment management: A review of the current state of knowledge and a methodological decision-tree for end-users by Collins, A.L., Pulley, S., Foster, I.D.L., Gellis, A., Porto, P., Horowitz, A.J.

“…The growing awareness of the environmental significance of fine-grained sediment fluxes through catchment systems continues to underscore the need for reliable…”
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The potential for colour to provide a robust alternative to high-cost sediment source fingerprinting: Assessment using eight catchments in England by Pulley, S., Collins, A.L.

“…Excess diffuse fine sediment losses from agriculture are associated with a reduction in the ecological status of lakes and rivers. Agri-environment initiatives…”
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Soil erosion, sediment sources, connectivity and suspended sediment yields in UK temperate agricultural catchments: Discrepancies and reconciliation of field-based measurements by Pulley, S., Collins, A.L.

“…Robust understanding of the fine-grained sediment cascades of temperate agricultural catchments is essential for supporting targeted management for addressing…”
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A rapid and inexpensive colour-based sediment tracing method incorporating hydrogen peroxide sample treatment as an alternative to quantitative source fingerprinting for catchment management by Pulley, S., Collins, A.L.

“…Accessible sediment provenance information is highly desirable for guiding targeted interventions for reducing excess diffuse agricultural sediment losses to…”
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Using the colour of recent overbank sediment deposits in two large catchments to determine sediment sources for targeting mitigation of catchment-specific management issues by Pulley, S., Collins, A.L.

“…The effective management of sediment losses in large river systems is essential for maintaining the water resources and ecosystem services they provide…”
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Field-based determination of controls on runoff and fine sediment generation from lowland grazing livestock fields by Pulley, S., Collins, A.L.

“…Compared with arable land, there is a paucity of field-based measurements of erosion rates and controls for lowland temperate grassland supporting ruminant…”
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Sediment loss in response to scheduled pasture ploughing and reseeding: The importance of soil moisture content in controlling risk by Pulley, S., Collins, A.L.

“…•Post-plough sediment yields ranged between 0.20 to 4.73 t. ha yr-1.•Post-plough periods accounted for a mean of 28.8 % of monitored sediment flux.•The…”
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Feedback effects of estradiol and progesterone on ovulation and fertility of dairy cows after gonadotropin-releasing hormone-induced release of luteinizing hormone by Stevenson, J S, Pulley, S L

“…An experiment was conducted with the objective to determine the effects of estradiol, progesterone, presence of a corpus luteum (CL), and size of a dominant…”
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The soil organic carbon: Clay ratio in North Devon, UK: Implications for marketing soil carbon as an asset class by Pulley, S., Taylor, H., Prout, J. M., Haefele, S. M., Collins, A. L.

“…Building up stocks of agricultural soil organic carbon (SOC) can improve soil conditions as well as contribute to climate change mitigation. As a metric, the…”
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The sources and dynamics of fine-grained sediment degrading the Freshwater Pearl Mussel (Margaritifera margaritifera) beds of the River Torridge, Devon, UK by Pulley, S., Goubet, A., Moser, I., Browning, S., Collins, A.L.

“…The Freshwater Pearl Mussel (Margaritifera margaritifera) is an endangered organism across its entire range. It has a complex life cycle and stringent habitat…”
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Pregnancy per artificial insemination after presynchronizing estrous cycles with the Presynch-10 protocol or prostaglandin F2α injection followed by gonadotropin-releasing hormone before Ovsynch-56 in 4 dairy herds of lactating dairy cows by Stevenson, J S, Pulley, S L

“…The objective was to determine the effect of 2 presynchronization treatments on first-service pregnancy per artificial insemination (P/AI) in 4 dairy herds…”
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Sediment detachment by raindrop impact on grassland and arable fields: an investigation of controls by Pulley, S., Morten, C., Morgan, S., Cardenas, L. M., Collins, A. L.

“…Purpose Modern agricultural practices have increased the losses of fine sediment and associated pollutants to watercourses with associated off-site degradation…”
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Current advisory interventions for grazing ruminant farming cannot close exceedance of modern background sediment loss – Assessment using an instrumented farm platform and modelled scaling out by Collins, A.L., Zhang, Y., Upadhayay, H.R., Pulley, S., Granger, S.J., Harris, P., Sint, H., Griffith, B.

“…[Display omitted] •Excess sediment loss from land used by grazing ruminant farms assessed.•Modern background sediment loss rates of 0.20−0.35 t ha−1 yr−1 used…”
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Five-day resynchronization programs in dairy cows including presynchronization and progesterone at two stages following artificial insemination by Pulley, S L, Stevenson, J S

“…Two experiments were conducted to assess pregnancy outcomes after a 5-d Ovsynch-56 Resynch program [RES; GnRH injection (d 0) 5 d before and 56 h after the…”
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Concentrations of luteinizing hormone and ovulatory responses in dairy cows before timed artificial insemination by Pulley, S L, Keisler, D H, Stevenson, J S

“…The objective was to determine the incidence of LH surges and ovulatory responses in lactating dairy cows enrolled in a timed artificial insemination (TAI)…”
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Does cattle and sheep grazing under best management significantly elevate sediment losses? Evidence from the North Wyke Farm Platform, UK by Pulley, S., Cardenas, L. M., Grau, P., Mullan, S., Rivero, M. J., Collins, A. L.

“…Purpose Intensive livestock grazing has been associated with an increased risk of soil erosion and concomitant negative impacts on the ecological status of…”
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Are source groups always appropriate when sediment fingerprinting? The direct comparison of source and sediment samples as a methodological step by Pulley, S., Van Der Waal, B., Collins, A.L., Foster, I.D.L., Rowntree, K.

“…The classification of sediment source groups is often the least thoroughly considered part of a sediment fingerprinting methodology; however, the use of…”
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Characteristics and retention of luteal structures, extended postinsemination cycle, progesterone, and pregnancy-specific protein B in serum after human chorionic gonadotropin treatment of dairy cows by Stevenson, J S, Pulley, S L

“…Our objectives were to determine characteristics (size, number, and stayability) of luteal structures formed in response to human chorionic gonadotropin (hCG)…”
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Pregnancy outcomes after change in dose delivery of prostaglandin F₂α and time of gonadotropin-releasing hormone injection in a 5-day timed artificial insemination program in lactating dairy cows by Stevenson, J S, Pulley, S L, Hill, S L

“…We demonstrated that 50mg of PGF₂α on d 6 successfully induced luteolysis in lactating dairy cows enrolled in a traditional 5-d Ovsynch-72 program [GnRH…”
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