4 Works

Data from: Watershed versus within-lake drivers of nitrogen: phosphorus dynamics in shallow lakes

Luke J. Ginger, Kyle D. Zimmer, Brian R. Herwig, Mark A. Hanson, William O. Hobbs, Gaston E. Small & James B. Cotner
Research on lake eutrophication often identifies variables affecting amounts of phosphorus (P) and nitrogen (N) in lakes, but understanding factors influencing N:P ratios is important given its influence on species composition and toxin production by cyanobacteria. We sampled 80 shallow lakes in Minnesota (USA) for three years to assess effects of watershed size, proportion of watershed as both row crop and natural area, fish biomass, and lake alternative state (turbid versus clear) on total N:...

Data from: Energy conserving thermoregulatory patterns and lower disease severity in a bat resistant to the impacts of white-nose syndrome

Marianne S. Moore, Kenneth A. Field, Melissa J. Behr, Gregory G. Turner, Morgan E. Furze, Daniel W. F. Stern, Paul R. Allegra, Sarah A. Bouboulis, Chelsey D. Musante, Megan E. Vodzak, Matthew E. Biron, Melissa B. Meierhofer, Winifred F. Frick, Jeffrey T. Foster, Daryl Howell, Joseph A. Kath, Allen Kurta, Gerda Nordquist, Joseph S. Johnson, Thomas M. Lilley, Benjamin W. Barrett & DeeAnn M. Reeder
The devastating bat fungal disease, white-nose syndrome (WNS), does not appear to affect all species equally. To experimentally determine susceptibility differences between species, we exposed hibernating naïve little brown myotis (Myotis lucifugus) and big brown bats (Eptesicus fuscus) to the fungus that causes WNS, Pseudogymnoascus destructans (Pd). After hibernating under identical conditions, Pd lesions were significantly more prevalent and more severe in little brown myotis. This species difference in pathology correlates with susceptibility to WNS...

Data from: American black bears perceive the risks of crossing roads

Mark A. Ditmer, Spencer J. Rettler, John R. Fieberg, Paul A. Iaizzo, Timothy G. Laske, Karen V. Noyce & David L. Garshelis
Roadways may negatively impact wildlife species through vehicular-related mortality and spatial displacement or obstruction. Here we investigated physiological responses, which provide insights into the animal’s perception of its environment. We deployed GPS-collars in combination with cardiac biologgers on American black bears (Ursus americanus; 18 bear-years) in areas with differing road densities across Minnesota, USA. We tested whether bears exhibited acute stress responses, as defined by significant increases in heart rate (HR), associated with road crossings....

Data from: First discovery of the charophycean green alga Lychnothamnus barbatus (Charophyceae) extant in the New World

Kenneth G. Karol, Paul M. Skawinski, Richard M. McCourt, Michelle E. Nault, Reesa Evans, Martha E. Barton, Matthew S. Berg, Donna J. Perleberg, John Hall & John D. Hall
Premise of the study: Although some species of Characeae, known as stoneworts, can be found on every continent except Antarctica, many species and some genera have limited geographic distributions. The genus Lychnothamnus, represented by a single extant species L. barbatus, was known only from scattered localities in Europe and Australasia until it was recently discovered in North America. Methods: Morphological identifications were made from specimens collected in Minnesota and Wisconsin, U.S.A. DNA sequences were obtained...

Registration Year

  • 2017
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Resource Types

  • Dataset
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Affiliations

  • Minnesota Department of Natural Resources
    4
  • University of Minnesota
    2
  • The Bronx Defenders
    1
  • Bucknell University
    1
  • Ohio University
    1
  • University of New Hampshire
    1
  • University of Wisconsin-Madison
    1
  • Northern Arizona University
    1
  • Eastern Michigan University
    1
  • Science Museum of Minnesota
    1