195 results on '"Culp, Joseph"'
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2. Stream macroinvertebrate community responses to an agricultural gradient alter consumer-driven nutrient dynamics
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Loomer, Heather A., Kidd, Karen A., Erdozain, Maitane, Benoy, Glenn A., Chambers, Patricia A., and Culp, Joseph M.
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- 2023
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3. Fatty-acid based assessment of benthic food-web responses to multiple stressors in a large river system
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Lau, Danny C.P., Brua, Robert B., Goedkoop, Willem, and Culp, Joseph M.
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- 2023
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4. Corrigendum: Development of a multi-scale monitoring programme: approaches for the Arctic and lessons learned from the Circumpolar Biodiversity Monitoring Programme 2002-2022
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Barry, Tom, primary, Christensen, Tom, additional, Behe, Carolina, additional, Coon, Catherine, additional, Culp, Joseph M., additional, Vongraven, Dag, additional, Fletcher, Sierra, additional, Gill, Micheal, additional, Goedkoop, Willem, additional, Hindrum, Reidar, additional, Jacobson, Cynthia, additional, Jones, Tahzay, additional, Lárusson, Kári Fannar, additional, Lento, Jennifer, additional, Marissink, Mark, additional, McLennan, Donald, additional, Price, Courtney, additional, Rönkä, Mia, additional, Svoboda, Michael, additional, Thaulow, Inge, additional, Taylor, Jason, additional, Wegeberg, Susse, additional, Schmidt, Niels Martin, additional, Smith, Risa, additional, and Petersen, Ævar, additional
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- 2024
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5. Ecological effects and causal synthesis of oil sands activity impacts on river ecosystems: water synthesis review
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Culp, Joseph M., Droppo, Ian G., Cenzo, Peter D. di, Alexander, Alexa C., Baird, Donald J., Beltaos, Spyros, Bickerton, Greg, Bonsai, Barrie, Brua, Robert B., Chambers, Patricia A., Dibike, Yonas, Glozier, Nancy E., Kirk, Jane L., Levesque, Lucie, McMaster, Mark, Muir, Derek C.G., Parrott, Joanne L., Peters, Daniel L., Pippy, Kerry, and Roy, James W.
- Subjects
Oil sands -- Environmental aspects ,Rivers -- Environmental aspects ,Environmental issues - Abstract
Oil sands development in the lower Athabasca River watershed has raised considerable public and scientific concerns regarding perceived effects on environmental health. To address this issue for tributaries and the mainstem of the Athabasca River in the Athabasca Oil Sands Region, the Water Component of the Joint Oil Sands Monitoring (JOSM) plan produced monitoring assessments for seven integrated themes: atmospheric deposition, tributary water quality, river mainstem water quality, groundwater quality and quantity, water quality and quantity modelling, benthic invertebrate condition, and fish health. Our review integrates and synthesizes the large and diverse datasets assembled in the seven JOSM theme assessments to (i) evaluate possible environmental effects based on known sources and candidate proximal causes and (it) determine the importance of cause-and-effect pathways related to contaminant, sediment, and nutrient inputs. Although JOSM research identified ecological effects that appear to be associated with contaminant exposure, the source of this exposure is confounded by co-location of, and inability to differentiate between, oil sands operations (principally released by atmospheric emission) and inputs from the natural bitumen outcrops (e.g., erosional material transported by surface and groundwater flows). Nutrient enrichment from treated municipal sewage effluent was the dominant ecological effect observed for the mainstem Athabasca River, associated with increased fish size and changes in invertebrate assemblages, likely because this pollution source is discharged directly into the river. If the direct release of treated oil sands process water occurs in the future, then the potential ecological impact of these direct industry releases will need to be evaluated carefully. The ecological causal assessment method proved to be a useful tool for better understanding how stressor sources relate to ecological effects through candidate proximate causes. Factors that confound our ability to assess the ecological effects of oil sands development focus on our inability to adequately differentiate between contaminants supplied from natural and anthropogenic contaminant sources. Our causal synthesis identifies options for changes in future monitoring to better anticipate and detect degradation in the ecosystem health of the lower Athabasca River and its tributaries. Key words: oil sands, biomonitoring, cumulative effects, sediments, contaminants, nutrient enrichment. L'exploitation des sables bitumineux dans le cours inferieur du bassin versant de la riviere Athabasca a suscite une grande inquietude chez le public et les scientifiques quant aux effets percus sur la sante environnementale. Afin d'aborder cette question pour les affluents et le cours principal de la riviere Athabasca dans la region des sables bitumineux de l'Athabasca, la composante eau du programme de surveillance conjointe des sables bitumineux (SCSB) a produit des evaluations des surveillances pour sept themes integres : le depot atmospherique, la qualite de l'eau des affluents, la qualite de l'eau du cours principal de la riviere, la qualite et la quantite des eaux souterraines, la modelisation de la qualite et de la quantite de l'eau, la condition des invertebres benthiques et la sante des poissons. La synthese realisee par les auteurs integre et resume les vastes et divers ensembles de donnees rassembles dans les sept evaluations thematiques du programme de SCSB pour (i) evaluer les effets environnementaux possibles sur la base des sources connues et des causes proximales candidates et (it) determiner l'importance des voies de causalite liees aux apports de contaminants, de sediments et de nutriments. Bien que les recherches du programme de SCSB aient identifie des effets ecologiques qui semblent etre associes a l'exposition aux contaminants, la source de cette exposition est confondue par la co-localisation et l'incapacite a differencier entre les operations d'exploitation des sables bitumineux (principalement rejetes par emission atmospherique) et les apports provenant des affleurements naturels de bitume (par exemple, les materiaux formes par 1'erosion transported par le flux des eaux de surface et souterraines). L'enrichissement en nutriments des effluents d'eaux usees municipales traitees a ete l'effet ecologique dominant observe pour le cours principal de la riviere Athabasca, associe a l'augmentation de la taille des poissons et aux changements dans les assemblages d'invertebres, probablement parce que cette source de pollution est rejetee directement dans la riviere. Si le rejet direct des eaux de traitement des sables bitumineux se produit a l'avenir, l'impact ecologique potentiel de ces rejets directs de l'industrie devra alors etre soigneusement evalue. La methode d'evaluation des causes ecologiques s'est averee constituer un outil utile pour mieux comprendre comment les sources de stress sont liees aux effets ecologiques par des causes immediates candidates. Les facteurs qui confondent notre capacite a evaluer les effets ecologiques de l'exploitation des sables bitumineux se concentrent sur notre incapacite a differencier de maniere adequate les contaminants provenant de sources naturelles et anthropiques. Cette synthese sur les voies de causalite identifie des options de changements dans la surveillance future afm de mieux anticiper et detecter la degradation de la sante de l'ecosysteme du cours inferieur de la riviere Athabasca et de ses affluents. [Traduit par la Redaction] Mots-cles: sables bitumineux, biosurveillance, effets cumulatifs, sediments, contaminants, enrichissement en nutriments., 1. Introduction The Canadian oil sands in northeastern Alberta contain approximately 10% of the proven global oil reserves (Natural Resources Canada 2019), with development expanding substantially since 1980 and oil [...]
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- 2021
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6. Development of a multi-scale monitoring programme: approaches for the Arctic and lessons learned from the Circumpolar Biodiversity Monitoring Programme 2002-2022.
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Barry, Tom, Christensen, Tom, Behe, Carolina, Coon, Catherine, Culp, Joseph M., Vongraven, Dag, Fletcher, Sierra, Gill, Micheal, Goedkoop, Willem, Hindrum, Reidar, Jacobson, Cynthia, Jones, Tahzay, Lárusson, Kári Fannar, Lento, Jennifer, Marissink, Mark, McLennan, Donald, Price, Courtney, Rönkä, Mia, Svoboda, Michael, and Thaulow, Inge
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BIODIVERSITY monitoring ,CONSCIOUSNESS raising ,DATA management ,WORKS councils ,TRADITIONAL knowledge ,INDIGENOUS rights - Abstract
The Arctic Council working group, the Conservation of Arctic Flora and Fauna (CAFF) established the Circumpolar Biodiversity Monitoring Programme (CBMP), an international network of scientists, governments, Indigenous organizations, and conservation groups working to harmonize and integrate efforts to extend and develop monitoring and assessment of the Arctic's biodiversity. Its relevance stretches beyond the Arctic to a broad range of regional and global initiatives and agreements. This paper describes the process and approach taken in the last two decades to develop and implement the CBMP. It documents challenges encountered, lessons learnt, and solutions, and considers how it has been a model for national, regional, and global monitoring programmes; explores how it has impacted Arctic biodiversity monitoring, assessment, and policy and concludes with observations on key issues and next steps. The following are overarching prerequisites identified in the implementation of the CBMP: effective coordination, sufficient and sustained funding, improved standards and protocols, co-production of knowledge and equitable involvement of IK approaches, data management to facilitating regional analysis and comparisons, communication and outreach to raising awareness and engagement in the programme, ensuring resources to engage in international fora to ensuring programme implementation. [ABSTRACT FROM AUTHOR]
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- 2024
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7. Development of a multi-scale monitoring programme: approaches for the Arctic and lessons learned from the Circumpolar Biodiversity Monitoring Programme 2002-2022
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Barry, Tom, primary, Christensen, Tom, additional, Behe, Carolina, additional, Coon, Catherine, additional, Culp, Joseph M., additional, Fletcher, Sierra, additional, Gill, Micheal, additional, Goedkoop, Willem, additional, Hindrum, Reidar, additional, Jacobson, Cynthia, additional, Jones, Tahzay, additional, Lárusson, Kári Fannar, additional, Lento, Jennifer, additional, Marissink, Mark, additional, McLennan, Donald, additional, Price, Courtney, additional, Rönkä, Mia, additional, Svoboda, Michael, additional, Thaulow, Inge, additional, Taylor, Jason, additional, Wegeberg, Susse, additional, Schmidt, Niels Martin, additional, and Smith, Risa, additional
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- 2023
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8. Macroinvertebrate traits in Arctic streams reveal latitudinal patterns in physiology and habits that are strongly linked to climate
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Lento, Jennifer, primary, Lau, Danny C. P., additional, Brittain, John E., additional, Culp, Joseph M., additional, and Goedkoop, Willem, additional
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- 2023
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9. Observations of Inland Water Biodiversity: Progress, Needs and Priorities
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Turak, Eren, Dudgeon, David, Harrison, Ian J., Freyhof, Jörg, De Wever, Aaike, Revenga, Carmen, Garcia-Moreno, Jaime, Abell, Robin, Culp, Joseph M., Lento, Jennifer, Mora, Brice, Hilarides, Lammert, Flink, Stephan, Walters, Michele, editor, and Scholes, Robert J., editor
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- 2017
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10. Stream macroinvertebrate community responses to an agricultural gradient alter consumer-driven nutrient dynamics
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Loomer, Heather A., primary, Kidd, Karen A., additional, Erdozain, Maitane, additional, Benoy, Glenn A., additional, Chambers, Patricia A., additional, and Culp, Joseph M., additional
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- 2022
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11. Harnessing aquatic plant growth forms to apply European nutrient‐enrichment bioindicators to Canadian waters
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Tyrrell, Christopher D., primary, Chambers, Patricia A., additional, and Culp, Joseph M., additional
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- 2022
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12. Responses of Low Arctic Stream Benthic Macroinvertebrate Communities to Environmental Drivers at Nested Spatial Scales
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Lento, Jennifer, Monk, Wendy A., Culp, Joseph M., Curry, R. Allen, Cote, David, and Luiker, Eric
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- 2013
13. Biodiversity patterns of Arctic diatom assemblages in lakes and streams:Current reference conditions and historical context for biomonitoring
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Kahlert, Maria, Rühland, Kathleen M., Lavoie, Isabelle, Keck, François, Saulnier-Talbot, Emilie, Bogan, Daniel, Brua, Robert B., Campeau, Stéphane, Christoffersen, Kirsten S., Culp, Joseph M., Karjalainen, Satu Maaria, Lento, Jennifer, Schneider, Susanne C., Shaftel, Rebecca, Smol, John P., Kahlert, Maria, Rühland, Kathleen M., Lavoie, Isabelle, Keck, François, Saulnier-Talbot, Emilie, Bogan, Daniel, Brua, Robert B., Campeau, Stéphane, Christoffersen, Kirsten S., Culp, Joseph M., Karjalainen, Satu Maaria, Lento, Jennifer, Schneider, Susanne C., Shaftel, Rebecca, and Smol, John P.
- Abstract
Comprehensive assessments of contemporary diatom distributions across the Arctic remain scarce. Furthermore, studies tracking species compositional differences across space and time, as well as diatom responses to climate warming, are mainly limited to paleolimnological studies due to a lack of routine monitoring in lakes and streams across vast areas of the Arctic. The study aims to provide a spatial assessment of contemporary species distributions across the circum-Arctic, establish contemporary biodiversity patterns of diatom assemblages to use as reference conditions for future biomonitoring assessments, and determine pre-industrial baseline conditions to provide historical context for modern diatom distributions. Diatom assemblages were assessed using information from ongoing regulatory monitoring programmes, individual research projects, and from surface sediment layers obtained from lake cores. Pre-industrial baseline conditions as well as the nature, direction and magnitude of changes in diatom assemblages over the past c. 200 years were determined by comparing surface sediment samples (i.e. containing modern assemblages) with a sediment interval deposited prior to the onset of significant anthropogenic activities (i.e. containing pre-1850 assemblages), together with an examination of diatoms preserved in contiguous samples from dated sediment cores. We identified several biotypes with distinct diatom assemblages using contemporary diatom data from both lakes and streams, including a biotype typical for High Arctic regions. Differences in diatom assemblage composition across circum-Arctic regions were gradual rather than abrupt. Species richness was lowest in High Arctic regions compared to Low Arctic and sub-Arctic regions, and higher in lakes than in streams. Dominant diatom taxa were not endemic to the Arctic. Species richness in both lakes and streams reached maximum values between 60°N and 75°N but was highly variable, probably reflecting differences
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- 2022
14. Spatial and temporal variation in Arctic freshwater chemistry : Reflecting climate-induced landscape alterations and a changing template for biodiversity
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Huser, Brian J., Futter, Martyn N., Bogan, Daniel, Brittain, John E., Culp, Joseph M., Goedkoop, Willem, Gribovskaya, Iliada, Karlsson, Jan, Lau, Danny C. P., Ruhland, Kathleen M., Schartau, Ann Kristin, Shaftel, Rebecca, Smol, John P., Vrede, Tobias, Lento, Jennifer, Huser, Brian J., Futter, Martyn N., Bogan, Daniel, Brittain, John E., Culp, Joseph M., Goedkoop, Willem, Gribovskaya, Iliada, Karlsson, Jan, Lau, Danny C. P., Ruhland, Kathleen M., Schartau, Ann Kristin, Shaftel, Rebecca, Smol, John P., Vrede, Tobias, and Lento, Jennifer
- Abstract
1. Freshwater chemistry across the circumpolar region was characterised using a pan-Arctic data set from 1,032 lake and 482 river stations. Temporal trends were estimated for Early (1970-1985), Middle (1986-2000), and Late (2001-2015) periods. Spatial patterns were assessed using data collected since 2001. 2. Alkalinity, pH, conductivity, sulfate, chloride, sodium, calcium, and magnesium (major ions) were generally higher in the northern-most Arctic regions than in the Near Arctic (southern-most) region. In particular, spatial patterns in pH, alkalinity, calcium, and magnesium appeared to reflect underlying geology, with more alkaline waters in the High Arctic and Sub Arctic, where sedimentary bedrock dominated. 3. Carbon and nutrients displayed latitudinal trends, with lower levels of dissolved organic carbon (DOC), total nitrogen, and (to a lesser extent) total phosphorus (TP) in the High and Low Arctic than at lower latitudes. Significantly higher nutrient levels were observed in systems impacted by permafrost thaw slumps. 4. Bulk temporal trends indicated that TP was higher during the Late period in the High Arctic, whereas it was lower in the Near Arctic. In contrast, DOC and total nitrogen were both lower during the Late period in the High Arctic sites. Major ion concentrations were higher in the Near, Sub, and Low Arctic during the Late period, but the opposite bulk trend was found in the High Arctic. 5. Significant pan-Arctic temporal trends were detected for all variables, with the most prevalent being negative TP trends in the Near and Sub Arctic, and positive trends in the High and Low Arctic (mean trends ranged from +0.57%/year in the High/Low Arctic to -2.2%/year in the Near Arctic), indicating widespread nutrient enrichment at higher latitudes and oligotrophication at lower latitudes. 6. The divergent P trends across regions may be explained by changes in deposition and climate, causing decreased catchment transport of P in the south (e.g. increased so
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- 2022
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15. Arctic freshwater biodiversity:Establishing baselines, trends, and drivers of ecological change
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Culp, Joseph M., Goedkoop, Willem, Christensen, Tom, Christoffersen, Kirsten S., Fefilova, Elena, Liljaniemi, Petri, Novichkova, Anna A., Ólafsson, Jón S., Sandøy, Steinar, Zimmerman, Christian E., Lento, Jennifer, Culp, Joseph M., Goedkoop, Willem, Christensen, Tom, Christoffersen, Kirsten S., Fefilova, Elena, Liljaniemi, Petri, Novichkova, Anna A., Ólafsson, Jón S., Sandøy, Steinar, Zimmerman, Christian E., and Lento, Jennifer
- Abstract
Climate change is predicted to have dramatic effects on Arctic freshwater ecosystems through changes to the abiotic template that are expected to influence biodiversity. Changes are already ongoing in Arctic systems, but there is a lack of coordinated monitoring of Arctic freshwaters that hinders our ability to assess changes in biodiversity. To address the need for coordinated monitoring on a circumpolar scale, the Arctic Council working group, Conservation of Arctic Flora and Fauna, established the Circumpolar Biodiversity Monitoring Program, which is an adaptive monitoring program for the Arctic centred around four ecosystem themes (i.e., Freshwater, Terrestrial, Coastal, Marine). The freshwater theme developed a monitoring plan for Arctic freshwater biodiversity and recently completed the first assessment of status and trends in Arctic freshwater biodiversity. Circumpolar Biodiversity Monitoring Program–Freshwater has compiled and analysed a database of Arctic freshwater monitoring data to form the first report of the state of circumpolar Arctic freshwater biodiversity. This special issue presents the scientific analyses that underlie the Circumpolar Biodiversity Monitoring Program–Freshwater report and provides analyses of spatial and temporal diversity patterns and the multiple-stressor scenarios that act on the biological assemblages and biogeochemistry of Arctic lakes and rivers. This special issue includes regional patterns for selected groups of organisms in Arctic rivers and lakes of northern Europe, Russia, and North America. Circumpolar assessments for benthic diatoms, macrophytes, plankton, benthic macroinvertebrates, and fish demonstrate how climate change and associated environmental drivers affect freshwater biodiversity. Also included are papers on spatial and temporal trends in water chemistry across the circumpolar region, and a systematic review of documented Indigenous Knowledge that demonstrates its potential to support assessment and conse
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- 2022
16. Comparison of gut fluorescence and gut dry mass techniques for determining feeding periodicity in lotic mayflies
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Glozier, Nancy E., Culp, Joseph M., Scrimgeour, Garry J., and Halliwell, Daryl B.
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- 2000
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17. Temperature and spatial connectivity drive patterns in freshwater macroinvertebrate diversity across the Arctic
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Lento, Jennifer, Culp, Joseph M., Levenstein, Brianna, Aroviita, Jukka, Baturina, Maria A., Bogan, Daniel, Brittain, John E., Chin, Krista, Christoffersen, Kirsten S., Docherty, Catherine, Friberg, Nikolai, Ingimarsson, Finnur, Jacobsen, Dean, Lau, Danny C. P., Loskutova, Olga A., Milner, Alexander, Mykrä, Heikki, Novichkova, Anna A., Ólafsson, Jón S., Schartau, Ann Kristin, Shaftel, Rebecca, Goedkoop, Willem, Lento, Jennifer, Culp, Joseph M., Levenstein, Brianna, Aroviita, Jukka, Baturina, Maria A., Bogan, Daniel, Brittain, John E., Chin, Krista, Christoffersen, Kirsten S., Docherty, Catherine, Friberg, Nikolai, Ingimarsson, Finnur, Jacobsen, Dean, Lau, Danny C. P., Loskutova, Olga A., Milner, Alexander, Mykrä, Heikki, Novichkova, Anna A., Ólafsson, Jón S., Schartau, Ann Kristin, Shaftel, Rebecca, and Goedkoop, Willem
- Abstract
Warming in the Arctic is predicted to change freshwater biodiversity through loss of unique taxa and northward range expansion of lower latitude taxa. Detecting such changes requires establishing circumpolar baselines for diversity, and understanding the primary drivers of diversity. We examined benthic macroinvertebrate diversity using a circumpolar dataset of >1,500 Arctic lake and river sites. Rarefied α diversity within catchments was assessed along latitude and temperature gradients. Community composition was assessed through region-scale analysis of β diversity and its components (nestedness and turnover), and analysis of biotic–abiotic relationships. Rarefied α diversity of lakes and rivers declined with increasing latitude, although more strongly across mainland regions than islands. Diversity was strongly related to air temperature, with the lowest diversity in the coldest catchments. Regional dissimilarity was highest when mainland regions were compared with islands, suggesting that connectivity limitations led to the strongest dissimilarity. High contributions of nestedness indicated that island regions contained a subset of the taxa found in mainland regions. High Arctic rivers and lakes were predominately occupied by Chironomidae and Oligochaeta, whereas Ephemeroptera, Plecoptera, and Trichoptera taxa were more abundant at lower latitudes. Community composition was strongly associated with temperature, although geology and precipitation were also important correlates. The strong association with temperature supports the prediction that warming will increase Arctic macroinvertebrate diversity, although low diversity on islands suggests that this increase will be limited by biogeographical constraints. Long-term harmonised monitoring across the circumpolar region is necessary to detect such changes to diversity and inform science-based management.
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- 2021
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18. Mechanisms of Algal Patch Depletion: Importance of Consumptive and Non-Consumptive Losses in Mayfly-Diatom Systems
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Scrimgeour, Garry J., Culp, Joseph M., Bothwell, Max L., Wrona, Frederick J., and McKee, Malcolm H.
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- 1991
19. Reduction of Predation Risk under the Cover of Darkness: Avoidance Responses of Mayfly Larvae to a Benthic Fish
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Culp, Joseph M., Glozier, Nancy E., and Scrimgeour, Garry J.
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- 1991
20. Feeding while Evading Predators by a Lotic Mayfly: Linking Short-Term Foraging Behaviours to Long-Term Fitness Consequences
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Scrimgeour, Garry J. and Culp, Joseph M.
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- 1994
21. Experimental Evidence That Stream Macroinvertebrate Community Structure Is Unaffected by Different Densities of Coho Salmon Fry
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Culp, Joseph M.
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- 1986
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22. Non-Visual Communication in Freshwater Benthos: An Overview
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Dodson, Stanley I., Crowl, Todd A., Peckarsky, Barbara L., Kats, Lee B., Covich, Alan P., and Culp, Joseph M.
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- 1994
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23. Anti-Predator Responses of Mayfly Larvae to Conspecific and Predator Stimuli
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Scrimgeour, Garry J., Culp, Joseph M., and Cash, Kevin J.
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- 1994
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24. Feeding while Avoiding Predators: Evidence for a Size-Specific Trade-off by a Lotic Mayfly
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Scrimgeour, Garry J., Culp, Joseph M., and Wrona, Frederick J.
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- 1994
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25. Size-Dependent Diel Foraging Periodicity of a Mayfly Grazer in Streams with and without Fish
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Culp, Joseph M. and Scrimgeour, Garry J.
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- 1993
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26. Foraging and Evading Predators: The Effect of Predator Species on a Behavioural Trade-Off by a Lotic Mayfly
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Scrimgeour, Garry J. and Culp, Joseph M.
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- 1994
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27. An Improved Method for Obtaining Gut Contents from Small, Live Fishes by Anal and Stomach Flushing
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Culp, Joseph M., Boyd, Ian, and Glozier, Nancy E.
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- 1988
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28. Evaluation of Deposited Sediment and Macroinvertebrate Metrics Used to Quantify Biological Response to Excessive Sedimentation in Agricultural Streams
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Sutherland, Andrew B., Culp, Joseph M., and Benoy, Glenn A.
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- 2012
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29. Comparison of benthic macroinvertebrate communities by two methods: Kick- and U-net sampling
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Brua, Robert B., Culp, Joseph M., and Benoy, Glenn A.
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- 2011
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30. Sediment source identification: a review and a case study in some Canadian streams
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Krishnappan, Bommanna G., Chambers, Patricia A., Benoy, Glenn, and Culp, Joseph
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Sediment transport -- Observations ,Parameter estimation -- Methods ,Stream measurements -- Methods ,Engineering and manufacturing industries ,Observations ,Research ,Methods - Abstract
The state-of-the-art of sediment source identification is reviewed in this paper. Sediment 'fingerprinting' techniques using different 'fingerprint' properties were examined. With these techniques, it is possible to identify potential sources of sediment transported in river systems. Such knowledge is useful for implementing sediment control strategies to limit sediment production from upland areas in a watershed as well as for developing guidelines for land use practices to minimize adverse impacts on surface and ground water resources in agricultural watersheds. Examples of sediment source identification techniques that were carried out in agricultural watersheds in different parts of the world were also included in the present review. Key words: sediment source, fingerprinting technique, stream ecosystem, colour of sediment, magnetic properties, chemical properties, radionuclides, organic matter source, multi-parameter approach. Cet article etudie les meilleures methodes d'identification des sources de sediments. Les techniques de caracterisation des sediments utilisant diverses proprietes <> ont ete examinees. Grace a ces techniques il est possible d'identifier les sources potentielles de sediments transportes dans les bassins hydrographiques. Une telle connaissance est utile pour implanter des strategies de controle des sediments afin de limiter la venue de sediments provenant des zones aval dans un bassin hydrographique et pour developper des lignes directrices d'utilisation des terres afin de minimiser les impacts negatifs sur les ressources hydriques de surface et souterraines dans les bassins hydrographiques agricoles. Des exemples de techniques d'identification des sources de sediments realisees dans les bassins hydrographiques agricoles de diverses regions au monde sont inclus. Mots-cles : source de sediments, technique de caracterisation, ecosysteme des ruisseaux, couleur des sediments, proprietes magnetiques, proprietes chimiques, radionucleides, source de matie`re organique, approche a parametres multiples. [Traduit par la Redaction], Introduction Sediments transported in streams are derived from erosion of uplands by overland flow, erosion of stream banks due to channel-shifting, and erosion of stream beds due to excessive carrying [...]
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- 2009
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31. Stream biomonitoring using macroinvertebrates around the globe: a comparison of large-scale programs
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Buss, Daniel F., Carlisle, Daren M., Chon, Tae-Soo, Culp, Joseph, Harding, Jon S., Keizer-Vlek, Hanneke E., Robinson, Wayne A., Strachan, Stephanie, Thirion, Christa, and Hughes, Robert M.
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- 2014
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32. Abruptly and irreversibly changing Arctic freshwaters urgently require standardized monitoring
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Heino, Jani, Culp, Joseph M., Erkinaro, Jaakko, Goedkoop, Willem, Lento, Jennifer, Rühland, Kathleen, Smol, John P., and Britton, Robert
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0106 biological sciences ,arktinen alue ,010504 meteorology & atmospheric sciences ,Ecology ,business.industry ,Environmental resource management ,Biodiversity ,kylmien vesien ekosysteemi ,15. Life on land ,ekologinen muutos ,010603 evolutionary biology ,01 natural sciences ,luonnon monimuotoisuus ,6. Clean water ,Arctic ,13. Climate action ,Environmental science ,makea vesi ,14. Life underwater ,Temporal change ,korkeat leveysasteet ,business ,väliaikaismuutos ,0105 earth and related environmental sciences - Abstract
1. Arctic regions support a wide variety of freshwater ecosystems. These naturally oligotrophic and cold-water streams, rivers, ponds and lakes are currently being impacted by a diverse range of anthropogenic pressures, such as accelerated climate change, permafrost thaw, land-use change, eutrophication, brownification and the replacement of northern biota with the range expansion of more southern species. 2. Multiple stressors are rapidly changing Arctic freshwater systems as aquatic habitats are becoming more suitable for species originating from more southerly regions and thereby threatening biota adapted to cold waters. The livelihoods of Indigenous Peoples of the north will be altered when ecosystem services associated with changes in biodiversity are affected. Unfortunately, monitoring of biodiversity change in Arctic freshwaters is currently inadequate, making it difficult, if not impossible, to predict changes in ecosystem services. 3. Synthesis and applications. We propose a three-step approach to better address and facilitate monitoring of the rapid ecological changes that Arctic freshwater ecosystems are currently experiencing as a result of climate change. First, we should increase our efforts in the monitoring of freshwaters across all Arctic countries by setting up a network of monitoring sites and devoting more effort to a broad-scale baseline survey using standardized methods. Second, we should enhance modelling efforts to include both ecological change and socio-economic development. These models should help pinpoint species, ecosystems and geographical areas that are likely to show abrupt changes in response to any changes. Third, we should increase interaction among scientists, policymakers and different stakeholder groups. In particular, Indigenous Peoples must be involved in the leadership, planning and execution of monitoring and assessment activities of Arctic freshwaters. The proposed approach, which is critical to detecting the effects of climate change in the circumpolar region, has broader applications for global coordination of Arctic freshwater biomonitoring. Through routine monitoring, standardization of methods, enhanced modelling of integrated scientific and socio-economic change, and increased collaboration within and among sectors, more effective monitoring and management of climate change impacts on freshwater biodiversity will be possible in the Arctic and globally.
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- 2020
33. Northern Rivers Ecosystem Initiative: Nutrients and Dissolved Oxygen – Issues and Impacts
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Chambers, Patricia A., Culp, Joseph M., Glozier, Nancy E., Cash, Kevin J., Wrona, Fred J., and Noton, Leigh
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- 2006
- Full Text
- View/download PDF
34. Development of a New Approach to Cumulative Effects Assessment: A Northern River Ecosystem Example
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Dubé, Monique, Johnson, Brian, Dunn, Gary, Culp, Joseph, Cash, Kevin, Munkittrick, Kelly, Wong, Isaac, Hedley, Kathlene, Booty, William, Lam, David, Resler, Oskar, and Storey, Alex
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- 2006
- Full Text
- View/download PDF
35. Spatial and temporal variation in Arctic freshwater chemistry : Reflecting climate-induced landscape alterations and a changing template for biodiversity
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Huser, Brian J., Futter, Martyn N., Bogan, Daniel, Brittain, John E., Culp, Joseph M., Goedkoop, Willem, Gribovskaya, Iliada, Karlsson, Jan, Lau, Danny C. P., Ruhland, Kathleen M., Schartau, Ann Kristin, Shaftel, Rebecca, Smol, John P., Vrede, Tobias, Lento, Jennifer, Huser, Brian J., Futter, Martyn N., Bogan, Daniel, Brittain, John E., Culp, Joseph M., Goedkoop, Willem, Gribovskaya, Iliada, Karlsson, Jan, Lau, Danny C. P., Ruhland, Kathleen M., Schartau, Ann Kristin, Shaftel, Rebecca, Smol, John P., Vrede, Tobias, and Lento, Jennifer
- Abstract
1. Freshwater chemistry across the circumpolar region was characterised using a pan-Arctic data set from 1,032 lake and 482 river stations. Temporal trends were estimated for Early (1970-1985), Middle (1986-2000), and Late (2001-2015) periods. Spatial patterns were assessed using data collected since 2001. 2. Alkalinity, pH, conductivity, sulfate, chloride, sodium, calcium, and magnesium (major ions) were generally higher in the northern-most Arctic regions than in the Near Arctic (southern-most) region. In particular, spatial patterns in pH, alkalinity, calcium, and magnesium appeared to reflect underlying geology, with more alkaline waters in the High Arctic and Sub Arctic, where sedimentary bedrock dominated. 3. Carbon and nutrients displayed latitudinal trends, with lower levels of dissolved organic carbon (DOC), total nitrogen, and (to a lesser extent) total phosphorus (TP) in the High and Low Arctic than at lower latitudes. Significantly higher nutrient levels were observed in systems impacted by permafrost thaw slumps. 4. Bulk temporal trends indicated that TP was higher during the Late period in the High Arctic, whereas it was lower in the Near Arctic. In contrast, DOC and total nitrogen were both lower during the Late period in the High Arctic sites. Major ion concentrations were higher in the Near, Sub, and Low Arctic during the Late period, but the opposite bulk trend was found in the High Arctic. 5. Significant pan-Arctic temporal trends were detected for all variables, with the most prevalent being negative TP trends in the Near and Sub Arctic, and positive trends in the High and Low Arctic (mean trends ranged from +0.57%/year in the High/Low Arctic to -2.2%/year in the Near Arctic), indicating widespread nutrient enrichment at higher latitudes and oligotrophication at lower latitudes. 6. The divergent P trends across regions may be explained by changes in deposition and climate, causing decreased catchment transport of P in the south (e.g. increased so
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- 2020
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36. Effects of prolonged sedimentation from permafrost degradation on macroinvertebrate drift in Arctic streams
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Levenstein, Brianna, primary, Lento, Jennifer, additional, and Culp, Joseph, additional
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- 2020
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37. The effects of taxonomy, diet, and ecology on the microbiota of riverine macroinvertebrates
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Kroetsch, Shawn A., primary, Kidd, Karen A., additional, Monk, Wendy A., additional, Culp, Joseph M., additional, Compson, Zacchaeus G., additional, and Pavey, Scott A., additional
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- 2020
- Full Text
- View/download PDF
38. State of the arctic freshwater biodiversity: key findings and advice for monitoring
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Goedkoop, Willem, Culp, Joseph, Lento, Jennifer, Liljaniemi, Petri, Christoffersen, Kirsten, Fefilova, Elena, Ólafsson, Jón S., Sandøy, Steinar, Zimmerman, Christian, Larsen, Jan René, Christensen, Tom, and Fannar Lárusson, Kári
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Ecology - Published
- 2019
39. State of the Arctic Freshwater Biodiversity : report
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Lento, Jennifer, Goedkoop, Willem, Culp, Joseph, Christoffersen, Kirsten, Fefilova, Elena, Guðbergsson, Guðni, Fannar Lárusson, Kári, Liljaniemi, Petri, Ólafsson, Jón S., Sandøy, Steinar, Zimmerman, Christian, Christensen, Tom, Chambers, Patricia, Heino, Jani, Hellsten, Seppo, Kahlert, Maria, Keck, Francois, Laske, Sarah, Chun Pong Lau, Danny, Lavoie, Isabelle, Levenstein, Brianna, Mariash, Heather, Rühland, Kathleen, Saulnier-Talbot, Emilie, Schartau, Ann Kristin, and Svenning, Martin
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Ecology - Published
- 2019
40. Science Advances
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Tiegs, Scott D., Costello, David M., Isken, Mark W., Woodward, Guy, McIntyre, Peter B., Gessner, Mark O., Chauvet, Eric, Griffiths, Natalie A., Flecker, Alex S., Acuña, Vicenç, Albariño, Ricardo, Allen, Daniel C., Alonso, Cecilia, Andino, Patricio, Arango, Clay, Aroviita, Jukka, Barbosa, Marcus V. M., Barmuta, Leon A., Baxter, Colden V., Bell, Thomas D. C., Bellinger, Brent, Boyero, Luz, Brown, Lee E., Bruder, Andreas, Bruesewitz, Denise A., Burdon, Francis J., Callisto, Marcos, Canhoto, Cristina, Capps, Krista A., Castillo, María M., Clapcott, Joanne, Colas, Fanny, Colón-Gaud, Checo, Cornut, Julien, Crespo-Pérez, Verónica, Cross, Wyatt F., Culp, Joseph M., Danger, Michael, Dangles, Olivier, de Eyto, Elvira, Derry, Alison M., Villanueva, Veronica Díaz, Douglas, Michael M., Elosegi, Arturo, Encalada, Andrea C., Entrekin, Sally, Espinosa, Rodrigo, Ethaiya, Diana, Ferreira, Verónica, Ferriol, Carmen, Flanagan, Kyla M., Fleituch, Tadeusz, Follstad Shah, Jennifer J., Frainer, André, Friberg, Nikolai, Frost, Paul C., Garcia, Erica A., García Lago, Liliana, García Soto, Pavel Ernesto, Ghate, Sudeep, Giling, Darren P., Gilmer, Alan, Gonçalves, José Francisco, Gonzales, Rosario Karina, Graça, Manuel A. S., Grace, Mike, Grossart, Hans-Peter, Guérold, François, Gulis, Vlad, Hepp, Luiz U., Higgins, Scott, Hishi, Takuo, Huddart, Joseph, Hudson, John, Imberger, Samantha, Iñiguez-Armijos, Carlos, Iwata, Tomoya, Janetski, David J., Jennings, Eleanor, Kirkwood, Andrea E., Koning, Aaron A., Kosten, Sarian, Kuehn, Kevin A., Laudon, Hjalmar, Leavitt, Peter R., Lemes da Silva, Aurea L., Leroux, Shawn J., LeRoy, Carri J., Lisi, Peter J., MacKenzie, Richard, Marcarelli, Amy M., Masese, Frank O., McKie, Brendan G., Oliveira Medeiros, Adriana, Meissner, Kristian, Miliša, Marko, Mishra, Shailendra, Miyake, Yo, Moerke, Ashley, Mombrikotb, Shorok, Mooney, Rob, Moulton, Tim, Muotka, Timo, Negishi, Junjiro N., Neres-Lima, Vinicius, Nieminen, Mika L., Nimptsch, Jorge, Ondruch, Jakub, Paavola, Riku, Pardo, Isabel, Patrick, Christopher J., Peeters, Edwin T. H. M., Pozo, Jesus, Pringle, Catherine, Prussian, Aaron, Quenta, Estefania, Quesada, Antonio, Reid, Brian, Richardson, John S., Rigosi, Anna, Rincón, José, Rîşnoveanu, Geta, Robinson, Christopher T., Rodríguez-Gallego, Lorena, Royer, Todd V., Rusak, James A., Santamans, Anna C., Selmeczy, Géza B., Simiyu, Gelas, Skuja, Agnija, Smykla, Jerzy, Sridhar, Kandikere R., Sponseller, Ryan, Stoler, Aaron, Swan, Christopher M., Szlag, David, Teixeira-de Mello, Franco, Tonkin, Jonathan D., Uusheimo, Sari, Veach, Allison M., Vilbaste, Sirje, Vought, Lena B. M., Wang, Chiao-Ping, Webster, Jackson R., Wilson, Paul B., Woelfl, Stefan, Xenopoulos, Marguerite A., Yates, Adam G., Yoshimura, Chihiro, Yule, Catherine M., Zhang, Yixin X., Zwart, Jacob A., School of Biological and Chemical Sciences, Queen Mary University of London (QMUL), Leibniz-Institut für Gewässerökologie und Binnenfischerei (IGB), Leibniz Association, Laboratoire Ecologie Fonctionnelle et Environnement (ECOLAB), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées, ICRA, Catalan Institute for Water Research, ICRA, Pontificia Universidad Catolica del Ecuador, Wetland ecology department (Seville, Espagne), Doñana biological station - CSIC (SPAIN), Swiss Federal Institute of Aquatic Science and Technology - EAWAG (SWITZERLAND), Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences – Uppsala, Sweden, Burdon, Universidade Federal de Minas Gerais [Belo Horizonte] (UFMG), Marine and environmental research centre - IMAR-CMA (Coimbra, Portugal), University of Coimbra [Portugal] (UC), GRET, Sécurité et Qualité des Produits d'Origine Végétale (SQPOV), Institut National de la Recherche Agronomique (INRA)-Avignon Université (AU), Laboratorio de Limnología [Bariloche], Instituto Nacional de Investigaciones en Biodiversidad y Medioambiente [Bariloche] (INIBIOMA-CONICET), Consejo Nacional de Investigaciones Científicas y Técnicas [Buenos Aires] (CONICET)-Universidad Nacional del Comahue [Neuquén] (UNCOMA)-Consejo Nacional de Investigaciones Científicas y Técnicas [Buenos Aires] (CONICET)-Universidad Nacional del Comahue [Neuquén] (UNCOMA), Faculty of Science and Technology, University of the Basque Country, Polska Akademia Nauk (PAN), Norwegian Institute for Water Research (NIVA), Limnology of Stratified Lakes, IGB-Neuglobsow, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Faculty of Agriculture, Kyushu University, University of Bath [Bath], Yamanashi University, Department of Forest Ecology and Management, Swedish University of Agricultural Sciences (SLU), University of Vienna [Vienna], University of Zagreb, VTT Information technology, Technical Research Centre of Finland, Instituto de Ciencias Marinas y Limnológicas, Universidate de Vigo, Hospital Universitario La Paz, Department of Biology, Universidad Autonoma de Madrid (UAM), Universidad del Zulia (LUZ), Department of River Ecology and Conservation, Senckenberg Research Institute and Natural History Museum Frankfurt, Gelnhausen, Germany, University of Southampton, Research Institute of New-Type Urbanization, Avignon Université (AU)-Institut National de la Recherche Agronomique (INRA), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Oakland University (USA), Kent State University, Imperial College London, Cornell University, Department of Ecology and Evolutionary Biology, Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Climate Change Science Institute [Oak Ridge] (CCSI), Oak Ridge National Laboratory [Oak Ridge] (ORNL), UT-Battelle, LLC-UT-Battelle, LLC, Instituto Catalán de Investigación del Agua - ICRA (SPAIN) (ICRA), Consejo Nacional de Investigaciones Científicas y Técnicas [Buenos Aires] (CONICET)-Universidad Nacional del Comahue [Neuquén] (UNCOMA), DEPARTMENT OF BIOLOGY UNIVERSITY OF OKLAHOMA NORMAN USA, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), University of the Republic of Uruguay, Central Washington University, Finnish Environment Institute (SYKE), Federal University of Tocantins, University of Tasmania [Hobart, Australia] (UTAS), Idaho State University, Watershed Protection Department, Estación Biológica de Doñana (EBD), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC)-Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), School of Geography, University of Leeds, Leeds, UK, Swiss Federal Insitute of Aquatic Science and Technology [Dübendorf] (EAWAG), Colby College, Department of Aquatic Sciences and Assessment, University of Georgia [USA], EI Colegio de la Frontera Sur (ECOSUR), Consejo Nacional de Ciencia y Tecnología [Mexico] (CONACYT), Cawthron Institute, Risques, Ecosystèmes, Vulnérabilité, Environnement, Résilience (RECOVER), Aix Marseille Université (AMU)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Georgia Southern University, University System of Georgia (USG), Pontifical Catholic University of Ecuador, Montana State University (MSU), Wilfrid Laurier University (WLU), Centre d’Ecologie Fonctionnelle et Evolutive (CEFE), Université Paul-Valéry - Montpellier 3 (UPVM)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Polska Akademia Nauk = Polish Academy of Sciences (PAN), Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Universidade de Vigo, Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Department of Ecology and Evolutionary Biology [CALS], College of Agriculture and Life Sciences [Cornell University] (CALS), Cornell University [New York]-Cornell University [New York], Laboratoire Ecologie Fonctionnelle et Environnement (LEFE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT), Pontificia Universidad Católica del Ecuador, Universidade Federal do Tocantins (UFT), University of Leeds, Université Paul-Valéry - Montpellier 3 (UPVM)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-École Pratique des Hautes Études (EPHE), Universidad Autónoma de Madrid (UAM), and Entomology
- Subjects
Aquatic Ecology and Water Quality Management ,riparian zones ,ORGANIC-MATTER DECOMPOSITION ,Biodiversité et Ecologie ,Oceanografi, hydrologi och vattenresurser ,Carbon Cycle ,CARBON ,ekosysteemit ,Oceanography, Hydrology and Water Resources ,biomes ,biomit ,ddc:570 ,carbon cycle ,Humans ,STREAMS ,Life Science ,Human Activities ,Riparian zones ,TEMPERATURE ,Institut für Biochemie und Biologie ,Ecosystem ,ComputingMilieux_MISCELLANEOUS ,SDG 15 - Life on Land ,aquatic ecosystems ,Science & Technology ,WIMEK ,hiilen kierto ,vesiekosysteemit ,Aquatic Ecology ,Aquatische Ecologie en Waterkwaliteitsbeheer ,rivers ,Multidisciplinary Sciences ,ekosysteemit (ekologia) ,Biomonitoring ,articles ,Science & Technology - Other Topics ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology ,ecosystems ,joet ,Environmental Monitoring - Abstract
River ecosystems receive and process vast quantities of terrestrial organic carbon, the fate of which depends strongly on microbial activity. Variation in and controls of processing rates, however, are poorly characterized at the global scale. In response, we used a peer-sourced research network and a highly standardized carbon processing assay to conduct a global-scale field experiment in greater than 1000 river and riparian sites. We found that Earth’s biomes have distinct carbon processing signatures. Slow processing is evident across latitudes, whereas rapid rates are restricted to lower latitudes. Both the mean rate and variability decline with latitude, suggesting temperature constraints toward the poles and greater roles for other environmental drivers (e.g., nutrient loading) toward the equator. These results and data set the stage for unprecedented “next-generation biomonitoring” by establishing baselines to help quantify environmental impacts to the functioning of ecosystems at a global scale. This research was supported by awards to S.D.T. from the Ecuadorian Ministry of Science [Secretaría de Educación Superior Ciencia, Tecnología e Innovación (SENESCYT)] through the PROMETEO scholar exchange program, the Oakland University Research Development Grant program, and a Huron Mountain Wildlife Foundation research grant. N.A.G. was supported by the U.S. Department of Energy’s Office of Science, Biological and Environmental Research. Oak Ridge National Laboratory is managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725. We are grateful for open-access-publishing funds from Kresge Library at Oakland University and Queen’s University Belfast. This research was supported by awards to S.D.T. from the Ecuadorian Ministry of Science [Secretaría de Educación Superior Ciencia, Tecnología e Innovación (SENESCYT)] through the PROMETEO scholar exchange program, the Oakland University Research Development Grant program, and a Huron Mountain Wildlife Foundation research grant. N.A.G. was supported by the U.S. Department of Energy’s Office of Science, Biological and Environmental Research. Oak Ridge National Laboratory is managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725. We are grateful for open-access-publishing funds from Kresge Library at Oakland University and Queen’s University Belfast.
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- 2019
41. Global patterns and drivers of ecosystem functioning in rivers and riparian zones
- Author
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Tiegs, Scott D., Costello, David M., Isken, Mark W., Woodward, Guy, McIntyre, Peter B., Gessner, Mark O., Chauvet, Eric, Flecker, Alex S., Acuña, Vicenç, Albariño, Ricardo J., Allen, Daniel C., Alonso, Cecilia, Andino, Patricio, Arango, Clay P., Aroviita, Jukka, Barbosa, Marcus V. M., Barmuta, Leon A., Baxter, Colden V., Bell, Thomas D. C., Bellinger, Brent J., Boyero, Luz, Brown, Lee E., Bruder, Andreas, Bruesewitz, Denise A., Burdon, Francis J., Callisto, Marcos, Canhoto, Cristina, Capps, Krista A., Castillo, María M., Clapcott, Joanne, Colas, Fanny, Colón-Gaud, Checo, Cornut, Julien, Crespo-Pérez, Verónica, Cross, Wyatt F., Culp, Joseph M., Danger, Michael, Dangles, Olivier, de Eyto, Elvira, Derry, Alison M., Díaz Villanueva, Veronica, Douglas, Michael M., Elosegi, Arturo, Encalada, Andrea C., Entrekin, Sally, Espinosa, Rodrigo, Ethaiya, Diana, Ferreira, Verónica, Ferriol, Carmen, Flanagan, Kyla M., Fleituch, Tadeusz, Shah, Jennifer J. Follstad, Frainer, André, Friberg, Nikolai, Frost, Paul C., Garcia, Erica A., García Lago, Liliana, García Soto, Pavel Ernesto, Ghate, sudeep, Giling, Darren P., Gilmer, Alan, Gonçalves Jr., José Francisco, Gonzales, Rosario Karina, Graça, Manuel A. S., Grace, Mike, Grossart, Hans-Peter, Guérold, François, Gulis, Vlad, Hepp, Luiz U., Higgins, Scott, Hishi, Takuo, Huddart, Joseph, Hudson, John, Imberger, Samantha, Iñiguez-Armijos, Carlos, Iwata, Tomoya, Janetski, David J., Jennings, Eleanor, Kirkwood, Andrea E., Koning, Aaron A., Kosten, Sarian, Kuehn, Kevin A., Laudon, Hjalmar, Leavitt, Peter R., da Silva, Lemes, Leroux, Shawn J., LeRoy, Peter J. Lisi, MacKenzie, Richard, Marcarelli, Amy M., Masese, Frank O., McKie, Brendan G., Medeiros, Adriana Oliveira, Meissner, Kristian, Miliša, Marko, Mishra, Shailendra, Miyake, Yo, Moerke, Ashley, Mombrikotb, Shorok, mooney, Rob, Moulton, Tim, Muotka, Timo, Negishi, Junjiro N., Neres-Lima, Vinicius, Nieminen, Mika L., Nimptsch, Jorge, Ondruch, Jakub, Paavola, Riku, Pardo, Isabel, Patrick, Christopher J., Peeters, Edwin T.H.M., Pozo, Jesus, Pringle, Catherine, Prussian, Aaron, Quenta, Estefania, Quesada, Antonio, Reid, Brian, Richardson, John S., Rigosi, Anna, Rincón, José, Rîşnoveanu, Geta, Robinson, Christopher T., Rodríguez-Gallego, Lorena, Royer, Todd V., Rusak, James A., Santamans, Anna C., Selmeczy, Géza B., Simiyu, Gelas, Skuja, Agnija, Smykla, Jerzy, Sridar, Kandikere R., Sponseller, Ryan, Stoler, Aaron, Swan, Christopher M., Szlag, David, Teixeira-de Mello, Franco, Tonkin, Jonathan D., Uusheimo, Sari, Veach, Allison M., Vilbaste, Sirje, Vought, Lena B.M., Wang, Chiao-Ping, Webster, Jackson R., Wilson, Paul B., Woelfl, Stefan, Xenopoulos, Marguerite A., Yates, Adam G., Yoshimura, Chihiro, Yule, Catherine M., Zhang, Yixin X., and Zwart, Jacob A.
- Subjects
VDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480 ,VDP::Mathematics and natural scienses: 400::Zoology and botany: 480 - Abstract
River ecosystems receive and process vast quantities of terrestrial organic carbon, the fate of which depends strongly on microbial activity. Variation in and controls of processing rates, however, are poorly characterized at the global scale. In response, we used a peer-sourced research network and a highly standardized carbon processing assay to conduct a global-scale field experiment in greater than 1000 river and riparian sites. We found that Earth’s biomes have distinct carbon processing signatures. Slow processing is evident across latitudes, whereas rapid rates are restricted to lower latitudes. Both the mean rate and variability decline with latitude, suggesting temperature constraints toward the poles and greater roles for other environmental drivers (e.g., nutrient loading) toward the equator. These results and data set the stage for unprecedented “next-generation biomonitoring” by establishing baselines to help quantify environmental impacts to the functioning of ecosystems at a global scale.
- Published
- 2019
42. An improved technique for sampling lotic invertebrates
- Author
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Scrimgeour, Garry J., Culp, Joseph M., and Glozier, Nancy E.
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- 1993
- Full Text
- View/download PDF
43. Global patterns and drivers of ecosystem functioning in rivers and riparian zones
- Author
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Entomology, Tiegs, Scott D., Costello, David M., Isken, Mark W., Woodward, Guy, McIntyre, Peter B., Gessner, Mark O., Chauvet, Eric, Griffiths, Natalie A., Flecker, Alex S., Acuna, Vicenc, Albarino, Ricardo, Allen, Daniel C., Alonso, Cecilia, Andino, Patricio, Arango, Clay, Aroviita, Jukka, Barbosa, Marcus V. M., Barmuta, Leon A., Baxter, Colden V., Bell, Thomas D. C., Bellinger, Brent, Boyero, Luz, Brown, Lee E., Bruder, Andreas, Bruesewitz, Denise A., Burdon, Francis J., Callisto, Marcos, Canhoto, Cristina, Capps, Krista A., Castillo, Maria M., Clapcott, Joanne, Colas, Fanny, Colon-Gaud, Checo, Cornut, Julien, Crespo-Perez, Veronica, Cross, Wyatt F., Culp, Joseph M., Danger, Michael, Dangles, Olivier, de Eyto, Elvira, Derry, Alison M., Diaz Villanueva, Veronica, Douglas, Michael M., Elosegi, Arturo, Encalada, Andrea C., Entrekin, Sally A., Espinosa, Rodrigo, Ethaiya, Diana, Ferreira, Veronica, Ferriol, Carmen, Flanagan, Kyla M., Fleituch, Tadeusz, Shah, Jennifer J. Follstad, Frainer, Andre, Friberg, Nikolai, Frost, Paul C., Garcia, Erica A., Lago, Liliana Garcia, Garcia Soto, Pavel Ernesto, Ghate, Sudeep, Giling, Darren P., Gilmer, Alan, Goncalves, Jose Francisco, Jr., Gonzales, Rosario Karina, Graca, Manuel A. S., Grace, Mike, Grossart, Hans-Peter, Guerold, Francois, Gulis, Vlad, Hepp, Luiz U., Higgins, Scott, Hishi, Takuo, Huddart, Joseph, Hudson, John, Imberger, Samantha, Iniguez-Armijos, Carlos, Iwata, Tomoya, Janetski, David J., Jennings, Eleanor, Kirkwood, Andrea E., Koning, Aaron A., Kosten, Sarian, Kuehn, Kevin A., Laudon, Hjalmar, Leavitt, Peter R., Lemes da Silva, Aurea L., Leroux, Shawn J., Leroy, Carri J., Lisi, Peter J., MacKenzie, Richard, Marcarelli, Amy M., Masese, Frank O., Mckie, Brendan G., Oliveira Medeiros, Adriana, Meissner, Kristian, Milisa, Marko, Mishra, Shailendra, Miyake, Yo, Moerke, Ashley, Mombrikotb, Shorok, Mooney, Rob, Moulton, Tim, Muotka, Timo, Negishi, Junjiro N., Neres-Lima, Vinicius, Nieminen, Mika L., Nimptsch, Jorge, Ondruch, Jakub, Paavola, Riku, Pardo, Isabel, Patrick, Christopher J., Peeters, Edwin T. H. M., Pozo, Jesus, Pringle, Catherine, Prussian, Aaron, Quenta, Estefania, Quesada, Antonio, Reid, Brian, Richardson, John S., Rigosi, Anna, Rincon, Jose, Risnoveanu, Geta, Robinson, Christopher T., Rodriguez-Gallego, Lorena, Royer, Todd V., Rusak, James A., Santamans, Anna C., Selmeczy, Geza B., Simiyu, Gelas, Skuja, Agnija, Smykla, Jerzy, Sridhar, Kandikere R., Sponseller, Ryan, Stoler, Aaron, Swan, Christopher M., Szlag, David, Teixeira-de Mello, Franco, Tonkin, Jonathan D., Uusheimo, Sari, Veach, Allison M., Vilbaste, Sirje, Vought, Lena B. M., Wang, Chiao-Ping, Webster, Jackson R., Wilson, Paul B., Woelfl, Stefan, Xenopoulos, Marguerite A., Yates, Adam G., Yoshimura, Chihiro, Yule, Catherine M., Zhang, Yixin X., Zwart, Jacob A., Entomology, Tiegs, Scott D., Costello, David M., Isken, Mark W., Woodward, Guy, McIntyre, Peter B., Gessner, Mark O., Chauvet, Eric, Griffiths, Natalie A., Flecker, Alex S., Acuna, Vicenc, Albarino, Ricardo, Allen, Daniel C., Alonso, Cecilia, Andino, Patricio, Arango, Clay, Aroviita, Jukka, Barbosa, Marcus V. M., Barmuta, Leon A., Baxter, Colden V., Bell, Thomas D. C., Bellinger, Brent, Boyero, Luz, Brown, Lee E., Bruder, Andreas, Bruesewitz, Denise A., Burdon, Francis J., Callisto, Marcos, Canhoto, Cristina, Capps, Krista A., Castillo, Maria M., Clapcott, Joanne, Colas, Fanny, Colon-Gaud, Checo, Cornut, Julien, Crespo-Perez, Veronica, Cross, Wyatt F., Culp, Joseph M., Danger, Michael, Dangles, Olivier, de Eyto, Elvira, Derry, Alison M., Diaz Villanueva, Veronica, Douglas, Michael M., Elosegi, Arturo, Encalada, Andrea C., Entrekin, Sally A., Espinosa, Rodrigo, Ethaiya, Diana, Ferreira, Veronica, Ferriol, Carmen, Flanagan, Kyla M., Fleituch, Tadeusz, Shah, Jennifer J. Follstad, Frainer, Andre, Friberg, Nikolai, Frost, Paul C., Garcia, Erica A., Lago, Liliana Garcia, Garcia Soto, Pavel Ernesto, Ghate, Sudeep, Giling, Darren P., Gilmer, Alan, Goncalves, Jose Francisco, Jr., Gonzales, Rosario Karina, Graca, Manuel A. S., Grace, Mike, Grossart, Hans-Peter, Guerold, Francois, Gulis, Vlad, Hepp, Luiz U., Higgins, Scott, Hishi, Takuo, Huddart, Joseph, Hudson, John, Imberger, Samantha, Iniguez-Armijos, Carlos, Iwata, Tomoya, Janetski, David J., Jennings, Eleanor, Kirkwood, Andrea E., Koning, Aaron A., Kosten, Sarian, Kuehn, Kevin A., Laudon, Hjalmar, Leavitt, Peter R., Lemes da Silva, Aurea L., Leroux, Shawn J., Leroy, Carri J., Lisi, Peter J., MacKenzie, Richard, Marcarelli, Amy M., Masese, Frank O., Mckie, Brendan G., Oliveira Medeiros, Adriana, Meissner, Kristian, Milisa, Marko, Mishra, Shailendra, Miyake, Yo, Moerke, Ashley, Mombrikotb, Shorok, Mooney, Rob, Moulton, Tim, Muotka, Timo, Negishi, Junjiro N., Neres-Lima, Vinicius, Nieminen, Mika L., Nimptsch, Jorge, Ondruch, Jakub, Paavola, Riku, Pardo, Isabel, Patrick, Christopher J., Peeters, Edwin T. H. M., Pozo, Jesus, Pringle, Catherine, Prussian, Aaron, Quenta, Estefania, Quesada, Antonio, Reid, Brian, Richardson, John S., Rigosi, Anna, Rincon, Jose, Risnoveanu, Geta, Robinson, Christopher T., Rodriguez-Gallego, Lorena, Royer, Todd V., Rusak, James A., Santamans, Anna C., Selmeczy, Geza B., Simiyu, Gelas, Skuja, Agnija, Smykla, Jerzy, Sridhar, Kandikere R., Sponseller, Ryan, Stoler, Aaron, Swan, Christopher M., Szlag, David, Teixeira-de Mello, Franco, Tonkin, Jonathan D., Uusheimo, Sari, Veach, Allison M., Vilbaste, Sirje, Vought, Lena B. M., Wang, Chiao-Ping, Webster, Jackson R., Wilson, Paul B., Woelfl, Stefan, Xenopoulos, Marguerite A., Yates, Adam G., Yoshimura, Chihiro, Yule, Catherine M., Zhang, Yixin X., and Zwart, Jacob A.
- Abstract
River ecosystems receive and process vast quantities of terrestrial organic carbon, the fate of which depends strongly on microbial activity. Variation in and controls of processing rates, however, are poorly characterized at the global scale. In response, we used a peer-sourced research network and a highly standardized carbon processing assay to conduct a global-scale field experiment in greater than 1000 river and riparian sites. We found that Earth’s biomes have distinct carbon processing signatures. Slow processing is evident across latitudes, whereas rapid rates are restricted to lower latitudes. Both the mean rate and variability decline with latitude, suggesting temperature constraints toward the poles and greater roles for other environmental drivers (e.g., nutrient loading) toward the equator. These results and data set the stage for unprecedented “next-generation biomonitoring” by establishing baselines to help quantify environmental impacts to the functioning of ecosystems at a global scale.
- Published
- 2019
44. Ice breakup: a neglected factor in river ecology
- Author
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Culp, Joseph M and Prowse, Terry D
- Published
- 2003
45. Risks of Mixtures of Oil Sands Contaminants to a Sensitive Mayfly Sentinel, Hexagenia
- Author
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Howland, Julia, primary, Alexander, Alexa, additional, Milani, Danielle, additional, Peru, Kerry, additional, and Culp, Joseph, additional
- Published
- 2019
- Full Text
- View/download PDF
46. Seasonal differences in plankton community structure are more pronounced than spatial patterns in the headpond and downstream portions of a large impounded river
- Author
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Nguyen, Huy Q., primary, Curry, R. Allen, additional, Monk, Wendy A., additional, Culp, Joseph, additional, and Linnansaari, Tommi, additional
- Published
- 2019
- Full Text
- View/download PDF
47. Global patterns and drivers of ecosystem functioning in rivers and riparian zones
- Author
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Tiegs, Scott D., primary, Costello, David M., additional, Isken, Mark W., additional, Woodward, Guy, additional, McIntyre, Peter B., additional, Gessner, Mark O., additional, Chauvet, Eric, additional, Griffiths, Natalie A., additional, Flecker, Alex S., additional, Acuña, Vicenç, additional, Albariño, Ricardo, additional, Allen, Daniel C., additional, Alonso, Cecilia, additional, Andino, Patricio, additional, Arango, Clay, additional, Aroviita, Jukka, additional, Barbosa, Marcus V. M., additional, Barmuta, Leon A., additional, Baxter, Colden V., additional, Bell, Thomas D. C., additional, Bellinger, Brent, additional, Boyero, Luz, additional, Brown, Lee E., additional, Bruder, Andreas, additional, Bruesewitz, Denise A., additional, Burdon, Francis J., additional, Callisto, Marcos, additional, Canhoto, Cristina, additional, Capps, Krista A., additional, Castillo, María M., additional, Clapcott, Joanne, additional, Colas, Fanny, additional, Colón-Gaud, Checo, additional, Cornut, Julien, additional, Crespo-Pérez, Verónica, additional, Cross, Wyatt F., additional, Culp, Joseph M., additional, Danger, Michael, additional, Dangles, Olivier, additional, de Eyto, Elvira, additional, Derry, Alison M., additional, Villanueva, Veronica Díaz, additional, Douglas, Michael M., additional, Elosegi, Arturo, additional, Encalada, Andrea C., additional, Entrekin, Sally, additional, Espinosa, Rodrigo, additional, Ethaiya, Diana, additional, Ferreira, Verónica, additional, Ferriol, Carmen, additional, Flanagan, Kyla M., additional, Fleituch, Tadeusz, additional, Follstad Shah, Jennifer J., additional, Frainer, André, additional, Friberg, Nikolai, additional, Frost, Paul C., additional, Garcia, Erica A., additional, García Lago, Liliana, additional, García Soto, Pavel Ernesto, additional, Ghate, Sudeep, additional, Giling, Darren P., additional, Gilmer, Alan, additional, Gonçalves, José Francisco, additional, Gonzales, Rosario Karina, additional, Graça, Manuel A. S., additional, Grace, Mike, additional, Grossart, Hans-Peter, additional, Guérold, François, additional, Gulis, Vlad, additional, Hepp, Luiz U., additional, Higgins, Scott, additional, Hishi, Takuo, additional, Huddart, Joseph, additional, Hudson, John, additional, Imberger, Samantha, additional, Iñiguez-Armijos, Carlos, additional, Iwata, Tomoya, additional, Janetski, David J., additional, Jennings, Eleanor, additional, Kirkwood, Andrea E., additional, Koning, Aaron A., additional, Kosten, Sarian, additional, Kuehn, Kevin A., additional, Laudon, Hjalmar, additional, Leavitt, Peter R., additional, Lemes da Silva, Aurea L., additional, Leroux, Shawn J., additional, LeRoy, Carri J., additional, Lisi, Peter J., additional, MacKenzie, Richard, additional, Marcarelli, Amy M., additional, Masese, Frank O., additional, McKie, Brendan G., additional, Oliveira Medeiros, Adriana, additional, Meissner, Kristian, additional, Miliša, Marko, additional, Mishra, Shailendra, additional, Miyake, Yo, additional, Moerke, Ashley, additional, Mombrikotb, Shorok, additional, Mooney, Rob, additional, Moulton, Tim, additional, Muotka, Timo, additional, Negishi, Junjiro N., additional, Neres-Lima, Vinicius, additional, Nieminen, Mika L., additional, Nimptsch, Jorge, additional, Ondruch, Jakub, additional, Paavola, Riku, additional, Pardo, Isabel, additional, Patrick, Christopher J., additional, Peeters, Edwin T. H. M., additional, Pozo, Jesus, additional, Pringle, Catherine, additional, Prussian, Aaron, additional, Quenta, Estefania, additional, Quesada, Antonio, additional, Reid, Brian, additional, Richardson, John S., additional, Rigosi, Anna, additional, Rincón, José, additional, Rîşnoveanu, Geta, additional, Robinson, Christopher T., additional, Rodríguez-Gallego, Lorena, additional, Royer, Todd V., additional, Rusak, James A., additional, Santamans, Anna C., additional, Selmeczy, Géza B., additional, Simiyu, Gelas, additional, Skuja, Agnija, additional, Smykla, Jerzy, additional, Sridhar, Kandikere R., additional, Sponseller, Ryan, additional, Stoler, Aaron, additional, Swan, Christopher M., additional, Szlag, David, additional, Teixeira-de Mello, Franco, additional, Tonkin, Jonathan D., additional, Uusheimo, Sari, additional, Veach, Allison M., additional, Vilbaste, Sirje, additional, Vought, Lena B. M., additional, Wang, Chiao-Ping, additional, Webster, Jackson R., additional, Wilson, Paul B., additional, Woelfl, Stefan, additional, Xenopoulos, Marguerite A., additional, Yates, Adam G., additional, Yoshimura, Chihiro, additional, Yule, Catherine M., additional, Zhang, Yixin X., additional, and Zwart, Jacob A., additional
- Published
- 2019
- Full Text
- View/download PDF
48. Effects of prolonged sedimentation from permafrost degradation on macroinvertebrate drift in Arctic streams.
- Author
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Levenstein, Brianna, Lento, Jennifer, and Culp, Joseph
- Subjects
SEDIMENTATION & deposition ,STREAM function ,PERMAFROST ,TUNDRAS ,WATER quality ,THAWING - Abstract
Retrogressive thaw slumps are areas of unstable degraded permafrost that often drain into nearby watersheds, leading to increased sediment loads and changes in water quality. Thaw slumps are prevalent across the Arctic, including western Canada, Alaska, and Russia, and high‐altitude areas of western China. Over the past several decades, increased temperatures and precipitation in the Arctic have led to increases in the size and frequency of thaw slumps. Our study explored the effects of prolonged sedimentation from thaw slumps in the Peel Plateau, NWT, Canada on benthic macroinvertebrate drift, an important biological function of stream ecosystems. Though sedimentation is known to initiate a catastrophic drift response, studies have generally not considered the drift response to ongoing, long‐term perturbation. Drift densities and sediment loads were measured using drift nets and sediment traps at paired sites upstream and downstream of thaw slumps. We compared drift densities and sediment loads between sites and examined how drift differed over a fine‐sediment gradient. The amount of suspended and settling fine sediments increased significantly at downstream sites. Drift densities decreased at downstream sites; however, when drift was corrected for benthic abundance at each site, there was an increase in proportional drift density associated with increased fine sediments. These results indicate that prolonged impacts from thaw slumps result in lower macroinvertebrate abundance and higher proportional drift relative to undisturbed sites. Ultimately, increased sediment loads from thaw slumps represent a chronic stressor that will continue to prevent recovery of macroinvertebrate communities at impacted sites until these features stabilize. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
49. Postbag.
- Author
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Mudge, Alan, Mathews, Brenda, Bousfield, Ken, Clack, Pat, Newman, Colin, Playford, Jim, McLaughlin, Malcolm, Wheeler, Geoff, Groom, Linda, Barton, Steve, Green, Doug, Culp, Joseph, Robins, MJ, Gibson, Mr L, Deamer, Brian, Stewardson, Georgina, Mizen, Suzette, Broadribb, Martin, Hutchins, Rich, and Grimmer, Colin
- Subjects
JAZZ musicians ,JUKEBOXES ,JAZZ - Published
- 2021
50. Transitions in Arctic ecosystems: ecological implications of a changing hydrological regime
- Author
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Wrona, Frederick J., Johansson, Margareta, Culp, Joseph M., Jenkins, Alan, Mard, Johanna, Myers-Smith, Isla H., Prowse, Terry D., Vincent, Warwick F., and Wookey, Philip A.
- Subjects
Meteorology and Climatology ,Hydrology - Abstract
Numerous international scientific assessments and related articles have, during the last decade, described the observed and potential impacts of climate change as well as other related environmental stressors on Arctic ecosystems. There is increasing recognition that observed and projected changes in freshwater sources, fluxes, and storage will have profound implications for the physical, biogeochemical, biological and ecological processes and properties of Arctic terrestrial and freshwater ecosystems. However, a significant level of uncertainty remains in relation to forecasting the impacts of an intensified hydrological regime and related cryospheric change on ecosystem structure and function. As the terrestrial and freshwater ecology component of the Arctic Freshwater Synthesis we review these uncertainties and recommend enhanced coordinated circumpolar research and monitoring efforts to improve quantification and prediction of how an altered hydrological regime influences local, regional and circumpolar-level responses in terrestrial and freshwater systems. Specifically, we evaluate i) changes in ecosystem productivity; ii) alterations in ecosystem-level biogeochemical cycling and chemical transport; iii) altered landscapes, successional trajectories and creation of new habitats; iv) altered seasonality and phenological mismatches; and, v) gains or losses of species and associated trophic interactions. We emphasize the need for developing a process-based understanding of inter-ecosystem interactions, along with improved predictive models. We recommend enhanced use of the catchment-scale as an integrated unit of study, thereby more explicitly considering the physical, chemical and ecological processes and fluxes across a full freshwater continuum in a geographic region and spatial range of hydro-ecological units (e.g., stream-pond-lake-river-near shore marine environments).
- Published
- 2016
- Full Text
- View/download PDF
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