Search Results - "Danz, Nicholas P."

Do vegetation boundaries display smooth or abrupt spatial transitions along environmental gradients? Evidence from the prairie–forest biome boundary of historic Minnesota, USA by Danz, Nicholas P, Frelich, Lee E, Reich, Peter B, Niemi, Gerald J, Fridley, Jason

“…QUESTIONS: Two alternative mechanisms of abrupt vegetation change across ecological boundaries have been proposed: (1) concomitantly abrupt gradients in…”
Get full text

Vegetation controls vary across space and spatial scale in a historic grassland-forest biome boundary by Danz, Nicholas P., Reich, Peter B., Frelich, Lee E., Niemi, Gerald J.

“…Ecological boundaries are critical landscape regions of transition between adjacent ecological systems. While environmental controls of boundaries may operate…”
Get full text

Physical and plant community changes at a Lake Michigan coastal marsh related to a two-meter increase in lake level by Rutherford, Ryne, Hartsock, Jeremy A., Danz, Nicholas P.

“…Located in Oconto County, Wisconsin, Oconto Marsh #2 is a Great Lakes Coastal Wetland Monitoring Program study site that borders the shoreline of Lake…”
Get full text

Evaluating relationships between plants, water chemistry, and denitrification potential in palustrine freshwater marshes by Dybiec, Jacob M., Danz, Nicholas P., Learman, Deric R., Uzarski, Donald G.

“…•Denitrification is an important but difficult to measure process in wetlands.•We found correlations between biotic and abiotic factors and…”
Get full text

Diatom-based Weighted-averaging Transfer Functions for Great Lakes Coastal Water Quality: Relationships to Watershed Characteristics by Reavie, Euan D., Axler, Richard P., Sgro, Gerald V., Danz, Nicholas P., Kingston, John C., Kireta, Amy R., Brown, Terry N., Hollenhorst, Thomas P., Ferguson, Michael J.

“…In an effort to develop indicators for Great Lakes near-shore conditions, diatom-based transfer functions to infer water quality variables were developed from…”
Get full text

Standardized Measures of Coastal Wetland Condition: Implementation at a Laurentian Great Lakes Basin-Wide Scale by Uzarski, Donald G., Brady, Valerie J., Cooper, Matthew J., Wilcox, Douglas A., Albert, Dennis A., Axler, Richard P., Bostwick, Peg, Brown, Terry N., Ciborowski, Jan J. H., Danz, Nicholas P., Gathman, Joseph P., Gehring, Thomas M., Grabas, Greg P., Garwood, Anne, Howe, Robert W., Johnson, Lucinda B., Lamberti, Gary A., Moerke, Ashley H., Murry, Brent A., Niemi, Gerald J., Norment, Christopher J., Ruetz, Carl R., Steinman, Alan D., Tozer, Douglas C., Wheeler, Ryan, O’Donnell, T. Kevin, Schneider, John P.

“…Since European settlement, over 50 % of coastal wetlands have been lost in the Laurentian Great Lakes basin, causing growing concern and increased monitoring…”
Get full text

Estimating the Effects of Detection Heterogeneity and Overdispersion on Trends Estimated from Avian Point Counts by Etterson, Matthew A., Niemi, Gerald J., Danz, Nicholas P.

“…Point counts are a common method for sampling avian distribution and abundance. Although methods for estimating detection probabilities are available, many…”
Get full text

Leveraging a Landscape-Level Monitoring and Assessment Program for Developing Resilient Shorelines throughout the Laurentian Great Lakes by Uzarski, Donald G., Wilcox, Douglas A., Brady, Valerie J., Cooper, Matthew J., Albert, Dennis A., Ciborowski, Jan J. H., Danz, Nicholas P., Garwood, Anne, Gathman, Joseph P., Gehring, Thomas M., Grabas, Greg P., Howe, Robert W., Johnson, Lucinda B., Lamberti, Gary A., Moerke, Ashley H., Niemi, Gerald J., Redder, Todd, Ruetz III, Carl R., Steinman, Alan D., Tozer, Douglas C., O’Donnell, T. Kevin

“…Traditionally, ecosystem monitoring, conservation, and restoration have been conducted in a piecemeal manner at the local scale without regional landscape…”
Get full text

Human Influences on Water Quality in Great Lakes Coastal Wetlands by Morrice, John A, Danz, Nicholas P, Regal, Ronald R, Kelly, John R, Niemi, Gerald J, Reavie, Euan D, Hollenhorst, Tom, Axler, Richard P, Trebitz, Anett S, Cotter, Anne M, Peterson, Gregory S

“…A better understanding of relationships between human activities and water chemistry is needed to identify and manage sources of anthropogenic stress in Great…”
Get full text

Integrated measures of anthropogenic stress in the U.S. Great lakes basin by Danz, Nicholas P, Niemi, Gerald J, Regal, Ronald R, Hollenhorst, Tom, Johnson, Lucinda B, Hanowski, JoAnn M, Axler, Richard P, Ciborowski, Jan J H, Hrabik, Thomas, Brady, Valerie J, Kelly, John R, Morrice, John A, Brazner, John C, Howe, Robert W, Johnston, Carol A, Host, George E

“…Integrated, quantitative expressions of anthropogenic stress over large geographic regions can be valuable tools in environmental research and management…”
Get full text

Environmental Indicators for the Coastal Region of the North American Great Lakes: Introduction and Prospectus by Niemi, Gerald J., Kelly, John R., Danz, Nicholas P.

“…The Great Lakes coastal region is a dynamic area at the interface between land and water. It is heavily influenced by the magnitude of the large lakes…”
Get full text

Do vegetation boundaries display smooth or abrupt spatial transitions along environmental gradients? Evidence from the prairie–forest biome boundary of historic M innesota, USA by Danz, Nicholas P., Frelich, Lee E., Reich, Peter B., Niemi, Gerald J.

“…Abstract Questions Two alternative mechanisms of abrupt vegetation change across ecological boundaries have been proposed: (1) concomitantly abrupt gradients…”
Get full text

Light passage through leaf litter: variation among northern hardwood trees by Schimpf, David J., Danz, Nicholas P.

“…Leaf litter may influence the environment for germination and photosynthesis of seedlings and other small plants through its effects on transmitted light. We…”
Get full text

Environmentally stratified sampling design for the development of Great Lakes environmental indicators by DANZ, Nicholas P, REGAL, Ronald R, KINGSTON, John, KELLY, John R, NIEMI, Gerald J, BRADY, Valerie J, HOLLENHORST, T. O. M, JOHNSON, Lucinda B, HOST, George E, HANOWSKI, Joann M, JOHNSTON, Carol A, BROWN, Terry

“…Understanding the relationship between human disturbance and ecological response is essential to the process of indicator development. For large-scale…”
Get full text

COMPARISON OF SIMPLE AND MULTIMETRIC DIATOM-BASED INDICES FOR GREAT LAKES COASTLINE DISTURBANCE by Reavie, Euan D, Kireta, Amy R, Kingston, John C, Sgro, Gerald V, Danz, Nicholas P, Axler, Richard P, Hollenhorst, Thomas P

“…Because diatom communities are subject to the prevailing water quality in the Great Lakes coastal environment, diatom-based indices can be used to support…”
Get full text

An Index of Ecological Condition Based on Bird Assemblages in Great Lakes Coastal Wetlands by Howe, Robert W., Regal, Ronald R., Hanowski, JoAnn, Niemi, Gerald J., Danz, Nicholas P., Smith, Charles R.

“…We use bird distributions in non-forested coastal wetlands of the Great Lakes to illustrate a new, conceptually explicit method for developing biotic…”
Get full text

A probability-based indicator of ecological condition by Howe, Robert W., Regal, Ronald R., Niemi, Gerald J., Danz, Nicholas P., Hanowski, JoAnn M.

“…We introduce a new method for quantifying the ecological condition ( C) of sites based on documented species’ responses to environmental stress. Preliminary…”
Get full text

integrated approach to assessing multiple stressors for coastal Lake Superior by Niemi, Gerald J, Reavie, Euan D, Peterson, Gregory S, Kelly, John R, Johnston, Carol A, Johnson, Lucinda B, Howe, Robert W, Host, George E, Hollenhorst, Tom P, Danz, Nicholas P, Ciborowski, Jan J. H, Brown, Terry N, Brady, Valerie J, Axler, Richard P

“…Biological indicators can be used both to estimate ecological condition and to suggest plausible causes of ecosystem degradation across the U.S. Great Lakes…”
Get full text

Considerations for Monitoring Breeding Birds in Great Lakes Coastal Wetlands by Hanowski, JoAnn M., Danz, Nicholas P., Howe, Robert W., Regal, Ronald R., Niemi, Gerald J.

“…One goal in indicator development is to implement long-term monitoring that will track the relative condition of the indicator over time. Among the first steps…”
Get full text

Coastal Geomorphic and Lake Variability in the Laurentian Great Lakes: Implications for a Diatom-based Monitoring Tool by Kireta, Amy R., Reavie, Euan D., Danz, Nicholas P., Axler, Richard P., Sgro, Gerald V., Kingston, John C., Brown, Terry N., Hollenhorst, Tom

“…In an evaluation of diatoms as indicators of human disturbance in coastal ecosystems of the Laurentian Great Lakes, we characterized assemblage specificity to…”
Get full text