Search Results - "Horgan, Martin J."

Climate and land use interactively affect lake phytoplankton nutrient limitation status by Hayes, Nicole M, Vanni, Michael J, Horgan, Martin J, Renwick, William H

“…Climate-change models predict more frequent and intense summer droughts for many areas, including the midwestern United States. Precipitation quantity and…”
Get full text

Increase in mercury in Pacific yellowfin tuna by Drevnick, Paul E., Lamborg, Carl H., Horgan, Martin J.

“…Mercury is a toxic trace metal that can accumulate to levels that threaten human and environmental health. Models and empirical data suggest that humans are…”
Get full text

Interactive effects of light and nutrients on phytoplankton stoichiometry by Dickman, E.M, Vanni, M.J, Horgan, M.J

“…The stoichiometric composition of autotrophs can vary greatly in response to variation in light and nutrient availability, and can mediate ecological processes…”
Get full text

Increased Accumulation of Sulfur in Lake Sediments of the High Arctic by Drevnick, Paul E, Muir, Derek C. G, Lamborg, Carl H, Horgan, Martin J, Canfield, Donald E, Boyle, John F, Rose, Neil L

“…We report a synchronous increase in accumulation of reduced inorganic sulfur since c. 1980 in sediment cores from eight of nine lakes studied in the Canadian…”
Get full text

Nutrient stoichiometry of linked catchment-lake systems along a gradient of land use by VANNI, MICHAEL J, RENWICK, WILLIAM H, BOWLING, ANNA M, HORGAN, MARTIN J, CHRISTIAN, ALAN D

“…1. Catchments export nutrients to aquatic ecosystems at rates and ratios that are strongly influenced by land use practices, and within aquatic ecosystems…”
Get full text

Nutrient cycling by fish supports relatively more primary production as lake productivity increases by Vanni, Michael J., Bowling, Anna M., Dickman, Elizabeth M., Hale, R. Scott, Higgins, Karen A., Horgan, Martin J., Knoll, Lesley B., Renwick, William H., Stein, Roy A.

“…Animals can be important in nutrient cycling in particular ecosystems, but few studies have examined how this importance varies along environmental gradients…”
Get full text

Zebra mussel filter feeding and food-limited production of Daphnia : recent changes in lower trophic level dynamics of Oneida Lake, New York, U.S.A by HORGAN, M. J, MILLS, E. L

“…Exotic zebra mussels can alter lower trophic level dynamics in lakes that they colonize by consuming large quantities of phytoplankton. We simulated the…”
Get full text

Effects of Three Orconectes Crayfishes On Epilithic Microalgae: a Laboratory Experiment by Luttenton, Mark R, Horgan, Martin J, Lodge, David M

“…We tested the implications of littoral zone food web changes for periphyton abundance by comparing algal removal rates of three Orconectes crayfishes and a…”
Get full text

Nutrient stoichiometry of linked catchment-lake systems along a gradient of land use: Stoichiometry of linked catchment-lake systems by VANNI, MICHAEL J., RENWICK, WILLIAM H., BOWLING, ANNA M., HORGAN, MARTIN J., CHRISTIAN, ALAN D.

Get full text

Nutrient stoichiometry of linked catchmentalake systems along a gradient of land use by Vanni, Michael J, Renwick, William H, Bowling, Anna M, Horgan, Martin J, Christian, Alan D

“…1. Catchments export nutrients to aquatic ecosystems at rates and ratios that are strongly influenced by land use practices, and within aquatic ecosystems…”
Get full text