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1. Spatial and temporal patterns of benthic nutrient cycling define the extensive role of internal loading in an agriculturally influenced oxbow lake

Author:
Jason M. Taylor,   et al.   ; Rachel L. Nifong; Stephen DeVilbiss;     Show all 3 Authors
Source:
Biogeochemistry 2022 v.159 no.3 pp. 413-433
ISSN:
0168-2563
Subject:
alluvial plains; ammonium; denitrification; habitats; nitrogen; oxbow lakes; oxygen; phosphorus; probability; sediments; shorelines; spring; summer; temperature; time series analysis; watersheds; Mississippi
Abstract:
... Benthic habitats in shallow oxbow lakes may serve as permanent nitrogen (N) sinks by facilitating denitrification. Oxbow sediments may also accumulate nutrients through uptake, deposition and heterotrophic N₂ fixation, and ultimately provide a significant internal source of N and phosphorus (P) through sediment release to the water column. To better understand nutrient source-sink dynamics in oxbo ...
DOI:
10.1007/s10533-022-00935-7

2. Vegetation and Residence Time Interact to Influence Metabolism and Net Nutrient Uptake in Experimental Agricultural Drainage Systems

Author:
Jason M. Taylor,   et al.   ; Taylor Jason M.; Rachel L. Nifong;     Show all 3 Authors
Source:
Water 2021 v.13 no.10 pp. -
ISSN:
2073-4441
Subject:
denitrification; drainage; drainage channels; ecosystem respiration; gross primary productivity; metabolism; nitrogen; nutrient content; nutrient retention; nutrient uptake; phosphorus; sediments; soil nutrients; vegetation; water; watersheds; Mississippi River
Abstract:
... Agricultural drainage networks within the Lower Mississippi River Basin (LMRB) have potential to attenuate nutrient loading to downstream aquatic ecosystems through best management practices. Nutrient uptake (nitrogen, phosphorus), gross primary production (GPP), ecosystem respiration (ER), and denitrification rates were estimated using a combination of sensor measurements and hourly discrete samp ...
Handle:
10113/7389650
DOI:
10.3390/w13101416

3. Sediment Nutrient Flux Rates in a Shallow, Turbid Lake Are More Dependent on Water Quality Than Lake Depth

Author:
Jason M. Taylor,   et al.   ; Taylor Jason M.; Jordan L. Evans; Justin N. Murdock; Richard E. Lizotte;     Show all 5 Authors
Source:
Water 2021 v.13 no.10 pp. -
ISSN:
2073-4441
Subject:
agricultural runoff; agricultural watersheds; denitrification; eutrophication; lacustrine sediments; lakes; nitrate reduction; nitrates; nitrogen cycle; nutrient availability; nutrient uptake; reactive phosphorus; spring; total nitrogen; total phosphorus; turbidity; water quality; water temperature
Abstract:
... The bottom sediments of shallow lakes are an important nutrient sink; however, turbidity may alter the influence of water depth on sediment nutrient uptake by reducing light and associated oxic processes, or altering nutrient availability. This study assessed the relative influence of water quality vs. water depth on sediment nutrient uptake rates in a shallow agricultural lake during spring, when ...
Handle:
10113/7389571
DOI:
10.3390/w13101344

4. Stream algal biomass response to experimental phosphorus and nitrogen gradients: A case for dual nutrient management in agricultural watersheds

Author:
Jason M. Taylor,   et al.   ; Ashley R. Rodman; J. Thad Scott;     Show all 3 Authors
Source:
Journal of environmental quality 2020 v.49 no.1 pp. 140-151
ISSN:
0047-2425
Subject:
algae; biomass; chlorophyll; environmental quality; eutrophication; freshwater; nitrogen; nutrient management; periphyton; phosphorus; primary productivity; rivers; streams; Arkansas
Abstract:
... Watershed managers generally focus on P reduction strategies to combat freshwater eutrophication despite evidence that N co‐limits primary production. Our objective was to test the role of P in limiting stream periphyton biomass within the Buffalo River watershed in Arkansas by conducting a 31‐d streamside mesocosm experiment. To represent potentially different starting states, cobbles were transp ...
DOI:
10.1002/jeq2.20039

5. Mulch‐Derived Organic Carbon Stimulates High Denitrification Fluxes from Agricultural Ditch Sediments

Author:
Jason M. Taylor,   et al.   ; Rachel L. Nifong; Matthew T. Moore;     Show all 3 Authors
Source:
Journal of environmental quality 2019 v.48 no.2 pp. 476-484
ISSN:
0047-2425
Subject:
agroecosystems; biodiversity; crop production; denitrification; dissolved organic carbon; eutrophication; gypsum; hardwood; human health; mulches; nitrogen; pollution load; sediments
Abstract:
... Reactive N is an essential input for healthy, vibrant crop production, yet excess N is often transported off field via agricultural ditches to downstream receiving ecosystems, where it can cause negative impacts to human health, biodiversity loss, as well as eutrophication and resultant hypoxia. Denitrification, the transformation of reactive N to unreactive N₂ gas, within agricultural ditches has ...
DOI:
10.2134/jeq2018.09.0341

6. Breakdown rates and associated nutrient cycling vary between novel crop-derived and natural riparian detritus in aquatic agroecosystems

Author:
Jason M. Taylor,   et al.   ; Richard E. Lizotte Jr.; Sam Testa III;     Show all 3 Authors
Source:
Hydrobiologia 2019 v.827 no.1 pp. 211-224
ISSN:
0018-8158
Subject:
Platanus occidentalis; Quercus phellos; agricultural land; agroecosystems; aquatic communities; biogeochemical cycles; carbon nitrogen ratio; corn; cotton; crop residues; crops; detritus; ecological function; freshwater; freshwater ecosystems; habitats; nutrient content; organic matter; riparian areas; rivers; soybeans; storage time; trees; watersheds; Mississippi River
Abstract:
... Freshwater ecosystem function within agricultural landscapes may be altered by differences in processing of organic matter (OM) detritus entering freshwater habitats. We compared litter breakdown rates between crop residues; maize, cotton and soybean, and native riparian species: willow oak, American sycamore and cottonwood from inundated remnant river meander channels located within the Lower Mis ...
DOI:
10.1007/s10750-018-3766-x

7. Diatom Assemblage Changes in Agricultural Alluvial Plain Streams and Application for Nutrient Management

Author:
Jason M. Taylor,   et al.   ; Matthew B. Hicks;     Show all 2 Author
Source:
Journal of environmental quality 2019 v.48 no.1 pp. 83-92
ISSN:
0047-2425
Subject:
Bacillariophyceae; algae; alluvial plains; best management practices; dissolved oxygen; hydrology; indicator species; land management; metabolism; nutrient management; nutrients; ordination techniques; phosphorus; species diversity; streams; total phosphorus; Mississippi
Abstract:
... In large, alluvial floodplains dominated by agriculture, small streams have the potential to experience nutrient enrichment affecting algal assemblage structure and metabolism. Nutrient enrichment is largely driven by application of nutrients and altered hydrologic regimes. To inform stressor–response‐based nutrient reduction goals for agricultural alluvial plain streams, diatom assemblages were s ...
DOI:
10.2134/jeq2018.05.0196

8. Short term sediment accumulation rates reveal seasonal time lags between sediment delivery and deposition in an oxbow lake

Author:
Jason M. Taylor,   et al.   ; Daniel G. Wren; J.R. Rigby; Martin A. Locke; Lindsey M.W. Yasarer;     Show all 5 Authors
Source:
Agriculture, ecosystems & environment 2019 v.281 pp. 92-99
ISSN:
0167-8809
Subject:
algae; algal blooms; biomass; climate; hydrochemistry; oxbow lakes; pH; runoff; sediment traps; sedimentation rate; sediments; soil; soil erosion; spring; summer; suspended sediment; total suspended solids; water quality; water temperature; watersheds; winter
Abstract:
... Recent sedimentation rates are useful for quantifying how changes in a watershed affect soil erosion; however, typical geochronological methods for dating sediments are limited in temporal resolution, particularly for newly deposited sediments. We used sediment traps to measure short-term sediment accumulation rates in a natural oxbow lake whose watershed has a mix of agricultural and forested lan ...
Handle:
10113/6449218
DOI:
10.1016/j.agee.2019.05.007
CHORUS:
10.1016/j.agee.2019.05.007

9. Seasonal Differences in Relationships between Nitrate Concentration and Denitrification Rates in Ditch Sediments Vegetated with Rice Cutgrass

Author:
Jason M. Taylor,   et al.   ; Shannon L. Speir; J. Thad Scott;     Show all 3 Authors
Source:
Journal of environmental quality 2017 v.46 no.6 pp. 1500-1509
ISSN:
0047-2425
Subject:
Leersia oryzoides; agricultural watersheds; autumn; coastal water; denitrification; environmental impact; enzyme kinetics; eutrophication; growing season; mass spectrometry; models; nitrates; nitrogen; nitrogen fertilizers; seasonal variation; sediments; spring; summer; winter
Abstract:
... Increased application of nitrogen (N) fertilizers in agricultural systems contributes to significant environmental impacts, including eutrophication of fresh and coastal waters. Rice cutgrass [Leersia oryzoides (L.) Sw.] can significantly enhance denitrification potential in agricultural ditch sediments and potentially reduce N export from agricultural watersheds, but relationships with known driv ...
DOI:
10.2134/jeq2016.11.0450

10. Spatial, temporal and experimental: Three study design cornerstones for establishing defensible numeric criteria in freshwater ecosystems

Author:
Jason M. Taylor,   et al.   ; Jeffrey A. Back; Bryan W. Brooks; Ryan S. King;     Show all 4 Authors
Source:
Journal of applied ecology 2018 v.55 no.5 pp. 2114-2123
ISSN:
0021-8901
Subject:
Bacillariophyceae; aquatic organisms; experimental design; freshwater ecosystems; hydrology; indicator species; models; nutrients; phosphorus; rocks; species diversity; streams; trophic levels
Abstract:
... Nutrient over‐enrichment increasingly threatens global water resources. Stressor‐response studies specifically designed to identify levels of nutrients strongly associated with undesirable ecological conditions are needed to inform numeric nutrient criteria that protect inland waters. Diatoms are important components of aquatic life, which support higher trophic levels and are sensitive to nutrien ...
Handle:
10113/6088634
DOI:
10.1111/1365-2664.13150

11. Habitat and nutrient enrichment affect decomposition of maize and willow oak detritus in Lower Mississippi River Basin bayous

Author:
Jason M. Taylor,   et al.   ; Richard Jr. Lizotte E.; Sam III Testa; Katelynn R. Dillard;     Show all 4 Authors
Source:
Freshwater Science 2017 v.36 no.4 pp. -
ISSN:
2161-9549
Subject:
Quercus phellos; Zea mays; agricultural land; agroecosystems; carbon nitrogen ratio; cell respiration; corn; detritus; floodplains; habitats; leaves; lentic systems; lotic systems; nitrogen content; nitrogen-phosphorus fertilizers; organic matter; oxbow lakes; phosphorus; soil fertility; soil respiration; surface water; watersheds; Mississippi; Mississippi River
Abstract:
... Few investigators have studied leaf breakdown in bayous or oxbow lakes, dominant aquatic features in fertile floodplains that potentially influence storage and processing of detritus in agricultural landscapes. We compared decomposition rates of maize (Zea mays) and willow oak (Quercus phellos) from 3 bayous in the Lower Mississippi River Basin of northwestern Mississippi and in bayou mesocosms en ...
Handle:
10113/5852145
DOI:
10.1086/694452

12. Consumer-mediated nutrient recycling is influenced by interactions between nutrient enrichment and the antimicrobial agent triclosan

Author:
Jason M. Taylor,   et al.   ; Jeffrey A. Back; Bryan W. Brooks; Ryan S. King;     Show all 4 Authors
Source:
Freshwater science 2016 v.35 no.3 pp. 856-872
ISSN:
2161-9549
Subject:
anti-infective agents; anti-infective properties; aquatic ecosystems; biogeochemical cycles; ecotoxicology; methanol; nitrogen; periphyton; personal care products; phenol; phosphorus; snails; streams; surface water; urbanization
Abstract:
... The fate and transport of triclosan (5-chloro-2-[2,4-dichlorophenoxy]phenol), a widely used antimicrobial agent in personal care products, in aquatic ecosystems is a growing environmental concern. At ecosystem scales, triclosan potentially interacts with co-occurring nutrient stressors to affect overall biogeochemical cycling through consumer-mediated nutrient recycling pathways. We examined N- an ...
Handle:
10113/62917
DOI:
10.1086/687838

13. Contrasting Nutrient Mitigation and Denitrification Potential of Agricultural Drainage Environments with Different Emergent Aquatic Macrophytes

Author:
Jason M. Taylor,   et al.   ; Matthew T. Moore; J. Thad Scott;     Show all 3 Authors
Source:
Journal of environmental quality 2015 v.44 no.4 pp. 1304-1314
ISSN:
0047-2425
Subject:
Leersia; Typha latifolia; agricultural runoff; denitrification; drainage; drainage channels; macrophytes; mass spectrometry; nitrates; nitrogen; nitrogen content; planting; remediation; vegetation; wetlands
Abstract:
... Remediation of excess nitrogen (N) in agricultural runoff can be enhanced by establishing wetland vegetation, but the role of denitrification in N removal is not well understood in drainage ditches. We quantified differences in N retention during experimental runoff events followed by stagnant periods in mesocosms planted in three different vegetation treatments: unvegetated, cutgrass [Leersia ory ...
Handle:
10113/62066
DOI:
10.2134/jeq2014.10.0448

14. Top-down and bottom-up interactions in freshwater ecosystems: emerging complexities

Author:
Jason M. Taylor,   et al.   ; Michael J. Vanni; Alexander S. Flecker;     Show all 3 Authors
Source:
Trophic Ecology: Bottom-Up and Top-Down Interactions across Aquatic and Terrestrial Systems 2015 ch.3 pp. 55-85
Subject:
limnology; freshwater; food chain; aquatic organisms; energy; invasive species; nutrients; freshwater ecosystems; ecosystem engineers; eutrophication; aquatic habitat; biodiversity; case studies; biogeochemical cycles
Abstract:
... Understanding the relative role of resource (bottom-up) and consumer (top-down) controls on ecosystem structure and function has been a central question in ecology for some time. In more recent times, ecologist have come to recognize that the two processes do not act independently and that interactions between bottom-up (BU) and top-down (TD) forces likely facilitate complex food webs. Moreover, a ...
Handle:
10113/60960

15. Ecoregional, catchment, and reach-scale environmental factors shape functional-trait structure of stream fish assemblages

Author:
Jason M. Taylor,   et al.   ; Allison A. Pease; Kirk O. Winemiller; Ryan S. King;     Show all 4 Authors
Source:
Hydrobiologia 2015 v.753 no.1 pp. 265-283
ISSN:
0018-8158
Subject:
agricultural land; community structure; ecoregions; environmental factors; environmental impact; fish; forests; functional diversity; habitats; land use; landscapes; life history; streams; urban agriculture; urban areas; urban development; watersheds; Texas
Abstract:
... Patterns of association between functional traits and environmental gradients can improve understanding of species assemblage structure from local to regional scales, and therefore may be useful for natural resource management. We measured functional traits related to trophic ecology, habitat use, and life-history strategies of fishes and examined their associations with environmental factors in t ...
Handle:
10113/60752
DOI:
10.1007/s10750-015-2235-z

16. Downstream fish assemblage response to river impoundment varies with degree of hydrologic alteration

Author:
Jason M. Taylor,   et al.   ; Titus S. Seilheimer; William L. Fisher;     Show all 3 Authors
Source:
Hydrobiologia 2014 v.728 pp. 23-39
ISSN:
0018-8158
Subject:
drainage systems; fish; habitats; lentic systems; lotic systems; rivers; stream flow; watersheds
Abstract:
... River impoundments alter downstream hydrology and habitat, often resulting in significant changes in stream communities. The degree of impact of a river impoundment on downstream hydrology and biological communities can be dependent on many factors, including underlying natural hydrologic regimes and reservoir operation purpose and scope. We compared pre- and post-impoundment hydrologic patterns a ...
Handle:
10113/58908
DOI:
10.1007/s10750-013-1797-x

17. Hydraulic Fracturing and Brook Trout Habitat in the Marcellus Shale Region: Potential Impacts and Research Needs

Author:
Jason M. Taylor,   et al.   ; Maya Weltman-Fahs;     Show all 2 Author
Source:
Fisheries 2013 v.38 no.1 pp. 4-15
ISSN:
1548-8446
Subject:
Salvelinus fontinalis; drilling; fisheries; habitats; life history; managers; models; natural gas; risk; scientists; shale; streams; surface water; North America
Abstract:
... Expansion of natural gas drilling into the Marcellus Shale formation is an emerging threat to the conservation and restoration of native brook trout (Salvelinus fontinalis) populations. Improved drilling and extraction technologies (horizontal drilling and hydraulic fracturing) have led to rapid and extensive natural gas development in areas overlying the Marcellus Shale. The expansion of hydrauli ...
DOI:
10.1080/03632415.2013.750112

18. Nonlinear response of stream ecosystem structure to low-level phosphorus enrichment

Author:
Jason M. Taylor,   et al.   ; Ryan S. King; Allison A. Pease; Kirk O. Winemiller;     Show all 4 Authors
Source:
Nonlinear response of stream ecosystem structure to low-level phosphorus enrichment 2014 v.59 no.5 pp. 969-984
ISSN:
0046-5070
Subject:
invasive species; nutrient content; nitrogen content; surface water; nitrogen; nutrient availability; carp; pastures; wastewater treatment; Cyprinus carpio; environmental factors; carbon; Etheostoma; minnows; nonpoint source pollution; Cyprinella lutrensis; periphyton; ecosystems; streams; phosphorus
Abstract:
... Anthropogenic inputs of nitrogen (N) and phosphorus (P) create novel environmental conditions that alter biological organization and ecosystem functioning in freshwaters. We studied 38 wadeable streams spanning an N and P gradient to contrast responses of algal and fish assemblages to nutrient enrichment. Surface-water total P (TP) and total N (TN) were correlated across our study sites, but TP ex ...
Handle:
10113/58916
DOI:
10.1111/fwb.12320

19. Coupling Fish Community Structure with Instream Flow and Habitat Connectivity between Two Hydrologically Extreme Years

Author:
Jason M. Taylor,   et al.   ; Charles E. Stanley; Ryan S. King;     Show all 3 Authors
Source:
Transactions of the American Fisheries Society 2012 v.141 no.4 pp. 1000-1015
ISSN:
1548-8659
Subject:
Campostoma anomalum; Fundulus notatus; Gambusia affinis; Ictalurus punctatus; Lepomis; Micropterus salmoides; Pimephales vigilax; bass; climate change; community structure; drought; fish communities; habitats; hydraulic structures; indicator species; juveniles; life history; lotic systems; nesting; spring; stream flow; streams; summer; Texas
Abstract:
... Hydrologic variability and instream habitat connectivity play fundamental roles in structuring fish communities in lotic ecosystems. We collected fish assemblage and physical habitat data from 28 central Texas streams during the summers of 2006 (a drought year with minimal summer precipitation and low stream flow) and 2007 (an exceptionally wet year with periodic flooding in spring and sustained h ...
DOI:
10.1080/00028487.2012.675893

20. Environmental flows in the context of unconventional natural gas development in the Marcellus Shale

Author:
Jason M. Taylor,   et al.   ; Brian P. Buchanan; Daniel A. Auerbach; Ryan A. McManamay; Alexander S. Flecker; Josephine A. Archibald; Daniel R. Fuka; M. Todd Walter;     Show all 8 Authors
Source:
Ecological Applications 2016 v.27 no.1 pp. 37-55
ISSN:
1051-0761
Subject:
aquatic ecosystems; drainage; fish communities; freshwater; natural gas; risk reduction; rivers; runoff; shale; species diversity; stream flow; streams; summer; surface water; winter
Abstract:
... Quantitative flow-ecology relationships are needed to evaluate how water withdrawals for unconventional natural gas development may impact aquatic ecosystems. Addressing this need, we studied current patterns of hydrologic alteration in the Marcellus Shale region and related the estimated flow alteration to fish community measures. We then used these empirical flow-ecology relationships to evaluat ...
Handle:
10113/63166
DOI:
10.1002/eap.1425