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  • Muller, Keona (2006-03-28
      Row after row of mum stock plants. Employees are taking shoot tip cuttings.
  • McMahon, Peg (2005-10-21
      Shade cloth is often used to reduce the amount of light reaching greenhouse plants. Neutral colors such as white, gray, black, and tan are preferred over colored materials.
  • Thomas, T. M.; Granatosky, M. C.; Bourque, J. R.; Krysko, K. L.; Moler, P. E.; Gamble, T.; Suarez, E.; Leone, E.; Enge, K. M.; Roman, J. (Zootaxa, 2014
      The Alligator Snapping Turtle, Macrochelys temminckii, is a large, aquatic turtle limited to river systems that drain into the Gulf of Mexico. Previous molecular analyses using both mitochondrial and nuclear DNA suggested that Macrochelys exhibits significant genetic variation across its range that includes three distinct genetic assemblages (western, central, and eastern = Suwannee). However, no taxonomic revision or morphological analyses have been conducted previously. In this study, we test previous hypotheses of distinct geographic assemblages by examining morphology, reanalyzing phylogeo-graphic genetic structure, and estimating divergence dating among lineages in a coalescent framework using Bayesian inference. We reviewed the fossil record and discuss phylogeographic and taxonomic implications of the existence of three distinct evolutionary lineages. We measured cranial (n= 145) and post-cranial (n= 104) material on field-captured individuals and museum specimens. We analyzed 420 base pairs (bp) of mitochondrial DNA sequence data for 158 Macrochelys. We examined fossil Macrochelys from ca. 15-16 million years ago (Ma) to the present to better assess historical distributions and evaluate named fossil taxa. The morphological and molecular data both indicate significant geographical variation and suggest three species-level breaks among genetic lineages that correspond to previously hypothesized genetic assemblages. The holotype of Macrochelys temminckii is from the western lineage. Therefore, we describe two new species as Macrochelys apalachicolae sp. nov. from the central lineage and Macrochelys suwanniensis sp. nov. from the eastern lineage (Suwannee River drainage). Our estimates of divergence times suggest that the most recent common ancestor (MRCA) of M. temminckii (western) and M. apalachicolae (central) existed 3.2-8.9 Ma during the late Miocene to late Pliocene, whereas M. temminckii-M. apalachicolae and M. suwanniensis last shared a MRCA 5.5-13.4 Ma during the mid-Miocene to early Pliocene. Examination of fossil material revealed that the fossil taxon M. floridana is actually a large Chelydra. Our taxonomic revision of Macrochelys has conservation and management implications in Florida, Georgia, and Alabama.
  • Wright, Wesley (2005-03-14
      Overview of Taynton Bowl at Panorama Mountain Resort
  • Tignor, Milton; Dollyhite, Ronald (2006-06-05
      Wilkes Community College, in Wilkesboro North Carolina, has a wide array of greenhouses that students constructed (or are in the process of building). These houses represent different facets of greenhouse construction that are common in Western North Carolina.
  • Kobos, P. H.; Erickson, J. D.; Drennen, T. E. (Energy Policy, 2006
      This paper analyzes the relationship between current renewable energy technology costs and cumulative production, research, development and demonstration expenditures, and other institutional influences. Combining the theoretical framework of 'learning by doing' and developments in 'learning by searching' with the fields of organizational learning and institutional economics offers a complete methodological framework to examine the underlying capital cost trajectory when developing electricity cost estimates used in energy policy planning models. Sensitivities of the learning rates for global wind and solar photovoltaic technologies to changes in the model parameters are tested. The implications of the results indicate that institutional policy instruments play an important role for these technologies to achieve cost reductions and further market adoption. Published by Elsevier Ltd.
  • Heleba, David (2004-11-24
      temperature and humidity for greenhouse is monitored through this sensor unit. Air is actively moved (aspirated) through sensor. Environmental data fed to central computer.
  • Pagliarulo, Chris; Giacomelli, Gene (2005-07-15
  • McMahon, Peg (2006-04-25
      The use of polyethylene film to create temporary walls and doors is an inexpensive way to reduce drafts and to control temperature.
  • Muller, Keona (2006-04-03
      Worker poses for picture as he weeds and cares for succulent display garden.
  • Conte, M.; Nelson, E.; Carney, K.; Fissore, C.; Olwero, N.; Plantinga, A.; Stanley, W.; Ricketts, T. (Oxford University Press, New York.New York, 2011
  • Burgess, N.; D'Amico Hales, J.; Underwood, E.; Dinerstein, E.; Olsen, D.; Schipper, J.; Ricketts, T.; Itoua, I.; Newman, K. (Island Press, Washington, D. C..Washington, D. C., 2004
      As part of a global effort to identify those areas where conservation measures are needed most urgently, World Wildlife Fund has assembled teams of scientists to conduct ecological assessments of all five continents. Terrestrial Ecoregions of Africa and Madagascar is the latest contribution, presenting in a single volume the first comprehensive assessment of biodiversity patterns, threats to biodiversity, and resulting conservation priorities across the African continent and its islands. Looking at biodiversity and threats in terms of biological units rather than political units, the book offers a comprehensive examination of African biodiversity across all biomes and multiple taxonomic groups. In addition to the seven main chapters, the book includes twenty essays by regional experts that provide more depth on key issues, as well as nine detailed appendixes that present summary data used in the analyses, specific analytical methodologies, and a thorough text description for each of Africa's 119 terrestrial ecoregions. Terrestrial Ecoregions of Africa and Madagascar provides a blueprint for conservation action and represents an unparalleled guide for investments and activities of conservation agencies and donor organizations.
  • Papeika, Jessica (2007-04-19
  • Greenberg, Hope (2004-11-05
      This is a test document for the Vermont Related Theses and Dissertations collection of the Center for Research on Vermont.
  • Voigt, B.; Troy, A.; Miles, B.; Reiss, A. (2009
      This paper describes the implementation of a land use and transportation modeling framework developed for Chittenden County, Vermont, to test for differences in modeled output when employing a dynamically linked travel demand model (TDM) versus an assumption of static regional accessibilities over time. With the use of the land use model UrbanSim, two versions of a 40-year simulation for the county, one with a TDM and one without, were compared. In the first version, UrbanSim was integrated with the TransCAD four-step TDM; this allowed regional accessibilities to be recalculated at regularly scheduled intervals. In the second version, TransCAD was used to compute year 2000 accessibilities; these values were held constant for the duration of the model run. The results indicated some significant differences in the modeled outputs. In particular, although centrally located traffic analysis zones (TAZs) reveal relatively little difference between the two models, the differential within peripheral TAZs is both more pronounced and more heterogeneous. The pattern displayed suggests that some peripheral TAZs have higher modeled development with a TDM because the TDM accounts for the increased proximity of destinations, thereby making them amenable to development. Meanwhile, some peripheral TAZs have lower modeled development with a TDM because they already have good accessibility (e.g., access via Interstate), but the model without the TDM does not account for increased congestion.
  • Severtson, D. J.; Vatovec, C. (Journal of Health Communication, 2012
      Theory-based research is needed to understand how maps of environmental health risk information influence risk beliefs and protective behavior. Using theoretical concepts from multiple fields of study including visual cognition, semiotics, health behavior, and learning and memory supports a comprehensive assessment of this influence. The authors report results from 13 cognitive interviews that provide theory-based insights into how visual features influenced what participants saw and the meaning of what they saw as they viewed 3 formats of water test results for private wells (choropleth map, dot map, and a table). The unit of perception, color, proximity to hazards, geographic distribution, and visual salience had substantial influences on what participants saw and their resulting risk beliefs. These influences are explained by theoretical factors that shape what is seen, properties of features that shape cognition (preattentive, symbolic, visual salience), information processing (top-down and bottom-up), and the strength of concrete compared with abstract information. Personal relevance guided top-down attention to proximal and larger hazards that shaped stronger risk beliefs. Meaning was more local for small perceptual units and global for large units. Three aspects of color were important: preattentive "incremental risk" meaning of sequential shading, symbolic safety meaning of stoplight colors, and visual salience that drew attention. The lack of imagery, geographic information, and color diminished interest in table information. Numeracy and prior beliefs influenced comprehension for some participants. Results guided the creation of an integrated conceptual framework for application to future studies. Ethics should guide the selection of map features that support appropriate communication goals.
  • Heleba, David (2004-11-24
      close up of aluminized polyester film strips that make up a thermal screen curtain
  • Tignor, Milton (2005-02-10
      thermostat controls small unit heater
  • Weill, Kurt (UVM Theatre, 1974
  • Weill, Kurt (UVM Theatre, 1977

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