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Full-Text Articles in Life Sciences
Decline Of Diporeia In Lake Michigan: Was Disease Associated With Invasive Species The Primary Factor?, Courtney S. Cave, Kevin Strychar
Decline Of Diporeia In Lake Michigan: Was Disease Associated With Invasive Species The Primary Factor?, Courtney S. Cave, Kevin Strychar
Funded Articles
Populations of the freshwater amphipod Diporeia spp. have steadily declined in Lake Michigan since the late 1980’s. Prior studies have provided inconclusive data on possible reasons for their decline. However, some authors suggest that food competition and/or diseases associated with aquatic invasive species (AIS), such as zebra mussels (Dreissena polymorpha), may have caused the collapse of Diporeia. In this project, the possibility of pathogens as the cause of the collapse of Diporeia has been examined. Linear regression modeling show a significant positive linear association between percent of Diporeia exhibiting a pathogenic infection and year (r=0.7202264, p2 = …
Evidence For Transfer Of Membranes From Mesenchymal Stem Cells To Hl-1 Cardiac Cells, Robert Boomsma, David Geenen
Evidence For Transfer Of Membranes From Mesenchymal Stem Cells To Hl-1 Cardiac Cells, Robert Boomsma, David Geenen
Funded Articles
This study examined the interaction of mouse bone marrow mesenchymal stem cells (MSC) with cardiac HL-1 cells during coculture by fluorescent dye labeling and then flow cytometry. MSC were layered onto confluent HL-1 cell cultures in a 1 : 4 ratio. MSC gained gap junction permeant calcein from HL-1 cells after 4 hours which was partially reduced by oleamide. After 20 hours, 99% MSC gained calcein, unaffected by oleamide. Double-labeling HL-1 cells with calcein and the membrane dye DiO resulted in transfer of both calcein and DiO to MSC. When HL-1 cells were labeled with calcein and MSC with DiO, …
Systematically Variable Planktonic Carbon Metabolism Along A Land-To-Lake Gradient In A Great Lakes Coastal Zone, Anthony D. Weinke, Scott T. Kendall, Daniel J. Kroll, Eric A. Strickler, Maggie E. Weinert, Thomas M. Holcomb, Angela A. Defore, Deborah K. Dila, Michael J. Snider, Leon C. Gereaux, Bopaiah Biddanda
Systematically Variable Planktonic Carbon Metabolism Along A Land-To-Lake Gradient In A Great Lakes Coastal Zone, Anthony D. Weinke, Scott T. Kendall, Daniel J. Kroll, Eric A. Strickler, Maggie E. Weinert, Thomas M. Holcomb, Angela A. Defore, Deborah K. Dila, Michael J. Snider, Leon C. Gereaux, Bopaiah Biddanda
Funded Articles
During the summers of 2002–2013, we measured rates of carbon metabolism in surface waters of six sites across a land-to-lake gradient from the upstream end of drowned river-mouth Muskegon Lake (ML) (freshwater estuary) to 19 km offshore in Lake Michigan (LM) (a Great Lake). Despite considerable inter-year variability, the average rates of gross production (GP), respiration (R) and net production (NP) across ML (604 ± 58, 222 ± 22 and 381 ± 52 µg C L−1 day−1, respectively) decreased steeply in the furthest offshore LM site (22 ± 3, 55 ± 17 and −33 ± 15 µg …
Native Plant Establishment Success Influenced By Spotted Knapweed (Centaurea Stoebe) Control Method, Laurelin M. Martin, Neil W. Macdonald, Tami E. Brown
Native Plant Establishment Success Influenced By Spotted Knapweed (Centaurea Stoebe) Control Method, Laurelin M. Martin, Neil W. Macdonald, Tami E. Brown
Funded Articles
Invasive species frequently need to be controlled as part of efforts to reestablish native species on degraded sites. While the effectiveness of differing control methods are often reported, the impacts these methods have on the establishment of a native plant community are often unknown. To determine methods that effectively reduce spotted knapweed (Centaurea stoebe) while enhancing native species establishment, we tested 12 treatment combinations consisting of an initial site preparation (mowing, mowing + clopyralid, or mowing + glyphosate), in factorial combination with annual adult knapweed hand pulling and/or burning. We established 48 plots and applied site preparation treatments …