Research output per year
Research output per year
Personal profile
About
Dr. Dev Niyogi's research centers on the effects of stress on ecosystem processes, including primary production and litter decomposition, in streams. Both natural and anthropogenic stresses affect almost all aquatic ecosystems. A "stress," such as mine drainage or agriculture, can pose several distinct stressors (having a negative influence), or in some cases subsidies (having a positive influence), to streams. He is most interested in how the effects of stress on ecosystem processes are mediated by the biological communities that perform those processes. The biomass, diversity, and specific taxa of communities can all affect the rates of ecosystem processes in stressed systems.
Dr. Niyogi's dissertation research at the University of Colorado examined the effects of mine drainage on ecosystem processes in streams, including primary production, decomposition, and nutrient cycling. Acid mine drainage poses several stresses to downstream ecosystems, including low pH, elevated concentrations of toxic metals, and deposition of metal oxides. These individual stresses have different effects on stream biota and the ecosystem processes that the biota control. For example, invertebrate consumers of leaf litter (called “shredders”) were affected mostly by dissolved metals, such as zinc, whereas microbes involved in litter breakdown were more affected by metal oxide deposition. Shredder activity was the key determinant of litter breakdown in my streams, as has been found in other streams.
His postdoctoral research focused on the effects of agricultural land use on streams in New Zealand. This topic is challenging because agriculture provides both subsidies (e.g., light and nutrients) and stresses (e.g., sediments) to streams. Small increases in light and nutrients at low levels of catchment development may lead to increases in ecological responses, including biodiversity and process rates. Large increases may lead to eutrophication and the loss of sensitive taxa. Sediment would usually have only a negative effect on ecological responses. Consequently, the net effect of catchment development on stream health follows a complex, nonlinear pattern.
CREE Research Investigator
Contact Information
Missouri University of Science and Technology
110 E Schrenk Hall
400 W. 11th Street
Rolla, MO 65409
Phone: (573) 341-7191
Related documents
Education/Academic qualification
Ph.D. in Environmental Biology, University of Colorado Boulder
… → 1999
B.A. in Biology, Swarthmore College
… → 1989
External positions
Post-doc, University of Otago
Jan 1 2000 → Jan 1 2002
Research Interests
- Freshwater Ecology
- Effects of humanity on stream ecosystems
- Role of biodiversity in controlling ecosystem processes
- Nutrient uptake in streams and other aquatic systems
Disciplines
- Biology
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Collaborations and top research areas from the last five years
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A Journey Through Time: The History of Mesoscale Severe Weather Monitoring and Forecasting in India
Mohanty, U. C., Nadimpalli, R., Srivastava, A., Das, A. K., Osuri, K. K., Routray, A., Joseph, S., Murty, P. L. N., Pattanaik, D. R., Gopalakrishnan, S. G., Niyogi, D. & Mohapatra, M., Jan 16 2025, In: Mausam. 76, 1, p. 79-102 24 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Global anthropogenic effects on meteorological—hydrological—soil moisture drought propagation: Historical analysis and future projection
Wang, S., Huang, S., Wang, C., Zhang, X., Wu, J., Gulakhmadov, A., Niyogi, D. & Chen, N., Jun 2025, In: Journal of Hydrology. 653, 132755.Research output: Contribution to journal › Article › peer-review
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Addressing Challenges to Ensuring Justice and Sustainability in Policy and Infrastructure for Texas Water Resources in the 21st Century
Cook, M. A., Tremaine, D. M., Wyatt, B. M., Banner, J. L., Charles, J., Berg, M., Bruno, T., Glazer, Y. R., Callison, C., Mace, R. E., Miller, V., Bare, R., Flores, R. S., Seefeldt, J., Fuller, A. & Niyogi, D., 2024, In: Texas Water Journal. 15, 1, p. 104-139 36 p.Research output: Contribution to journal › Article › peer-review
Open Access -
A framework to nowcast soil moisture with NASA SMAP level 4 data using in-situ measurements and deep learning
Dashtian, H., Young, M. H., Young, B. E., McKinney, T., Rateb, A. M., Niyogi, D. & Kumar, S. V., Dec 2024, In: Journal of Hydrology: Regional Studies. 56, 102020.Research output: Contribution to journal › Article › peer-review
Open Access -
Analysis of flux footprints in fragmented, heterogeneous croplands
Kumari, S., Kambhammettu, B. V. N. P., Adams, M. A. & Niyogi, D., Apr 2024, In: Meteorology and Atmospheric Physics. 136, 2, 9.Research output: Contribution to journal › Article › peer-review
Open Access
Press/Media
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Do tornadoes avoid hitting downtowns? Some research says yes, but scientists urge caution
5/22/25
1 item of Media coverage
Press/Media: Research
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Do tornadoes avoid hitting downtowns? Some research says yes, but scientists urge caution.
5/22/25
1 item of Media coverage
Press/Media: Research
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'It's a lot': Texans battle extreme heat weeks before summer starts
5/15/25
1 item of Media coverage
Press/Media: Research
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'It's a lot': Texans battle extreme heat weeks before summer starts
5/15/25
1 item of Media coverage
Press/Media: Research