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Physical Sciences and Mathematics Commons™

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University of Vermont

College of Agriculture and Life Sciences Faculty Publications

2015

Articles 1 - 4 of 4

Full-Text Articles in Physical Sciences and Mathematics

Survey Of Northeastern Hop Arthropod Pests And Their Natural Enemies, Lilian B. Calderwood, Scott A. Lewins, Heather M. Darby Mar 2015

Survey Of Northeastern Hop Arthropod Pests And Their Natural Enemies, Lilian B. Calderwood, Scott A. Lewins, Heather M. Darby

College of Agriculture and Life Sciences Faculty Publications

The commercial production of hops (Humulus lupulus L.) in the northeastern United States is on the rise due to demand from local breweries. Several arthropod pests are economically damaging to hop yield and quality. Due to climate and landscape differences between traditional and resurging hop-growing regions, there is a need for region-specific integrated pest management (IPM). We first review hop pest and natural enemy biology and management strategies. Then the phenology, abundance, and peak date of arthropod pests scouted in seven Vermont hop yards is reported. Documentation of natural enemy abundance is also reported. Our 3-yr survey indicated that hop …

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Mainstreaming Early Warning Systems In Development And Planning Processes: Multilevel Implementation Of Sendai Framework In Indus And Sahel, Asim Zia, Courtney Hammond Wagner Jan 2015

Mainstreaming Early Warning Systems In Development And Planning Processes: Multilevel Implementation Of Sendai Framework In Indus And Sahel, Asim Zia, Courtney Hammond Wagner

College of Agriculture and Life Sciences Faculty Publications

The third UN World Congress on Disaster Risk Reduction, held in Sendai, Japan in March 2015, agreed on a new framework to guide disaster risk reduction policy and practice for the next 15 years. The Sendai Framework for Disaster Risk Reduction 2015–2030 (SFDRR) leaves important implementation issues unspecified and potentially creates both problems and opportunities for complex, multilevel governance systems in coping with hazards and disastrous events. Early warning systems (EWS), if built into the mainstream of planning for development and disaster relief and recovery, could present a significant opportunity to realize many SFDRR goals. We explore the complexities of …

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The Ubiquity Of Phenotypic Plasticity In Plants: A Synthesis, Kattia Palacio-López, Brian Beckage, Samuel Scheiner, Jane Molofsky Jan 2015

The Ubiquity Of Phenotypic Plasticity In Plants: A Synthesis, Kattia Palacio-López, Brian Beckage, Samuel Scheiner, Jane Molofsky

College of Agriculture and Life Sciences Faculty Publications

Ecology and Evolution Published by John Wiley & Sons Ltd. Adaptation to heterogeneous environments can occur via phenotypic plasticity, but how often this occurs is unknown. Reciprocal transplant studies provide a rich dataset to address this issue in plant populations because they allow for a determination of the prevalence of plastic versus canalized responses. From 31 reciprocal transplant studies, we quantified the frequency of five possible evolutionary patterns: (1) canalized response-no differentiation: no plasticity, the mean phenotypes of the populations are not different; (2) canalized response-population differentiation: no plasticity, the mean phenotypes of the populations are different; (3) perfect adaptive …

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Effectiveness Of Nutrient Management Plans On Vermont Dairy Farms, Heather Darby, Philip Halteman, Debra Heleba Jan 2015

Effectiveness Of Nutrient Management Plans On Vermont Dairy Farms, Heather Darby, Philip Halteman, Debra Heleba

College of Agriculture and Life Sciences Faculty Publications

A nutrient management plan (NMP) is a tool that helps livestock farmers optimize crop nutrient use. A survey of Vermont dairy farmers was conducted to learn about farmers' implementation of and perceptions about the effects of NMPs. Results showed that 46% of the 301 respondents had NMPs, particularly large and medium size operations. The majority followed the plans most of the time (barring weather and other constraints). The study revealed that NMPs affected total perceived fertilizer use and adoption of conservation practices. It showed that the person(s) updating the NMP affected the frequency to which the plan's recommendations were consulted.

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