Search Results - "Niyogi, Dev K."

Stream Communities Along a Catchment Land-Use Gradient: Subsidy-Stress Responses to Pastoral Development by Niyogi, Dev K, Koren, Mark, Arbuckle, Chris J, Townsend, Colin R

“…When native grassland catchments are converted to pasture, the main effects on stream physicochemistry are usually related to increased nutrient concentrations…”
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Effects of anthropogenic heavy metal contamination on litter decomposition in streams – A meta-analysis by Ferreira, Verónica, Koricheva, Julia, Duarte, Sofia, Niyogi, Dev K., Guérold, François

“…Many streams worldwide are affected by heavy metal contamination, mostly due to past and present mining activities. Here we present a meta-analysis of 38…”
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Multiple stressors and stream ecosystem functioning: climate warming and agricultural stressors interact to affect processing of organic matter by Piggott, Jeremy J, Niyogi, Dev K, Townsend, Colin R, Matthaei, Christoph D, Arnott, Shelley

“…Measures of organic matter processing have been proposed as indices of stream ecosystem function to complement structural measures (water quality, taxonomic…”
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Improving the effectiveness of riparian management for aquatic invertebrates in a degraded agricultural landscape: stream size and land-use legacies by Greenwood, Michelle J., Harding, Jon S., Niyogi, Dev K., McIntosh, Angus R.

“…1. Riparian management has been embraced by water and land managers globally to offset the deleterious effects of intensive agricultural land use on aquatic…”
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Response of stream fungi on decomposing leaves to experimental drying by Niyogi, Dev K., Hu, Chia‐Yi, Vessell, Brett P.

“…Climate change may lead to increased droughts in the future, which in turn may lead to increased periods of stream drying. We conducted an experiment to test…”
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Organic matter breakdown as a measure of stream health in New Zealand streams affected by acid mine drainage by Niyogi, Dev K., Harding, Jon S., Simon, Kevin S.

“…► Litter breakdown was most closely related to metal hydroxide deposition as opposed to acidity or dissolved metals. ► Microbial activity can remain high even…”
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Scale-dependence of land use effects on water quality of streams in agricultural catchments by Buck, Oliver, Niyogi, Dev K, Townsend, Colin R

“…The influence of land use on water quality in streams is scale-dependent and varies in time and space. In this study, land cover patterns and stocking rates…”
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Meta‐community theory and stream restoration: evidence that spatial position constrains stream invertebrate communities in a mine impacted landscape by Kitto, Justin A.J, Gray, Duncan P, Greig, Hamish S, Niyogi, Dev K, Harding, Jon S

“…Mining activities, particularly acid mine drainage, often result in adverse effects on stream diversity and ecosystem functioning, and increased concern about…”
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Heavy metals: confounding factors in the response of New Zealand freshwater fish assemblages to natural and anthropogenic acidity by Greig, Hamish S., Niyogi, Dev K., Hogsden, Kristy L., Jellyman, Phillip G., Harding, Jon S.

“…Acidification of freshwaters is a global phenomenon, occurring both through natural leaching of organic acids and through human activities from industrial…”
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An Analysis of Factors Driving Success in Ecological Restoration Projects by a University-Community Partnership by Wood, Joy K., Gold, Warren G., Fridley, James L., Ewing, Kern, Niyogi, Dev K.

“…Every year since 2000, five to ten ecological restoration projects have been implemented on public and private lands in the Puget Sound region of Washington…”
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Breakdown of tussock grass in streams along a gradient of agricultural development in New Zealand by Niyogi, Dev K., Simon, Kevin S., Townsend, Colin R.

“…Summary 1. We measured the breakdown rate of tussock grass in 12 New Zealand streams in catchments that provided a gradient of agricultural development. We…”
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Effects of stress from mine drainage on diversity, biomass, and function of primary producers in mountain streams by NIYOGI, Dev K, LEWIS, William M, MCKNIGHT, Diane M

“…This paper proposes a hypothesis that relates biodiversity, community biomass, and ecosystem function to a gradient of stress. According to this hypothesis,…”
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Dry Valley Streams in Antarctica: Ecosystems Waiting for Water by McKnight, Diane M., Niyogi, Dev K., Alger, Alexander S., Bomblies, Arne, Conovitz, Peter A., Tate, Cathy M.

“…The microbial communities present in the McMurdo Dry Valleys of Antarctica consist primarily of cyanobacteria. The dynamic interactions between cyanobacterial…”
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Nitrogen Dynamics in Grassland Streams along a Gradient of Agricultural Development by Simon, Kevin S., Niyogi, Dev K., Frew, Russell D., Townsend, Colin R.

“…We examined nitrogen (N) uptake in seven grassland streams lying in catchments along a gradient (0-84%) of agricultural land use in New Zealand using a stable…”
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Nutrient flux, uptake, and transformation in a spring-fed stream in the Missouri Ozarks, USA by Niyogi, Dev K., Bandeff, Janet M., Selman, Cem, Menke, Drew E.

“…We examined nutrient flux, uptake, and transformation along a spring-fed stream in the Ozark region of Missouri, USA, over the year 2006. Water in Mill Creek…”
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Influences of Water and Substrate Quality for Periphyton in a Montane Stream Affected by Acid Mine Drainage by Niyogi, Dev K., McKnight, Diane M., Lewis, William M.

“…St. Kevin Gulch, a headwater stream of the Rocky Mountains of Colorado, receives acid mine drainage that maintains low pH, high concentrations of heavy metals,…”
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Headwater stream response to grassland agricultural development in New Zealand by Riley, Ralph H., Townsend, Colin R., Niyogi, Dev K., Arbuckle, Chris A., Peacock, Kathi A.

“…Agricultural development of native grasslands may change stream physico-chemistry in ways that provide both subsidies and stresses to the system. The aims of…”
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Development of a Tool to Facilitate Participation of Maori in the Management of Stream and River Health by Townsend, Colin R., Tipa, Gail, Teirney, Laurel D., Niyogi, Dev K.

“…A cultural health index (CHI) for streams was developed in a program of collaborative research involving members of Ngai Tahu (an iwi [tribe] within the South…”
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Dry Valley Streams in Antarctica: Ecosystems Waiting for Water by McKnight, Diane M., Niyogi, Dev K., Alger, Alexander S., Bomblies, Arne, Conovitz, Peter A., Tate, Cathy M.

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Litter Breakdown in Mountain Streams Affected by Mine Drainage: Biotic Mediation of Abiotic Controls by Niyogi, Dev K., Lewis, William M., McKnight, Diane M.

“…Breakdown of plant litter in streams was studied as an example of a major ecological process subject to change through multiple stresses associated with mine…”
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