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1. Vegetation and precipitation shifts interact to alter organic and inorganic carbon storage in cold desert soils

Author:
Finney, Bruce,   et al.   ; Huber, David P.; Lohse, Kathleen A.; Commendador, Amy; Joy, Stephen; Aho, Ken; Germino, Matthew J.;     Show all 7 Authors
Source:
Ecosphere 2019 v.10 no.3 pp. e02655
ISSN:
2150-8925
Subject:
Artemisia; arid lands; botanical composition; carbon sequestration; carbon sinks; climate change; cold; desert soils; ecosystems; inorganic carbon; long term effects; netting; rain; soil organic carbon; soil profiles; steppes
Abstract:
... Dryland ecosystems are experiencing shifts in rainfall and plant community composition, which are expected to alter cycling and storage of soil carbon (C). Few experiments have been conducted to examine long‐term effects on (1) soil organic C (SOC) pools throughout the soil profile, and (2) soil inorganic C (SIC) pools as they relate to dynamic changes in C storage and climate change. We measured ...
DOI:
10.1002/ecs2.2655

2. Late-Holocene floodplain development, land-use, and hydroclimate–flood relationships on the lower Ohio River, US

Author:
Finney, Bruce,   et al.   ; Bird, Broxton W; Barr, Robert C; Commerford, Julie; Gilhooly, William P; Wilson, Jeremy J; McLauchlan, Kendra; Monaghan, G William;     Show all 8 Authors
Source:
TheHolocene 2019 v.29 no.12 pp. 1856-1870
ISSN:
1477-0911
Subject:
Holocene epoch; atmospheric circulation; cold season; evapotranspiration; floodplains; lakes; land clearing; land use; landscapes; occupations; paleoclimatology; pollen; radiocarbon dating; rain; runoff; sedimentation rate; sediments; warm season; watersheds; Arctic region; Gulf of Mexico; Illinois; Ohio River
Abstract:
... Floodplain development, land-use, and flooding on the lower Ohio River are investigated with a 3100-year-long sediment archive from Avery Lake, a swale lake on the Black Bottom floodplain in southern Illinois, US. In all, 12 radiocarbon dates show that Avery Lake formed at 1130 BCE (3100 cal. yr BP), almost 3000 years later than previously thought, indicating that the Black Bottom floodplain is yo ...
DOI:
10.1177/0959683619865598

3. Holocene environmental change in the eastern Snake River Plain of Idaho, USA, as inferred from stable isotope analyses of small mammals

Author:
Finney, Bruce P.,   et al.   ; Commendador, Amy S.;     Show all 2 Author
Source:
Quaternary Research 2016 v.85 pp. 358-370
ISSN:
0033-5894
Subject:
Brachylagus idahoensis; Spermophilus; Thomomys talpoides; carbon; climate; climate change; collagen; dry environmental conditions; frequency distribution; gophers; humans; nitrogen; paleoecology; rabbits; small mammals; stable isotopes; vegetation; Idaho; Snake River
Abstract:
... Previous research on the small mammal population recovered from archeological excavations at the Wasden Site in southeastern Idaho suggests that changing frequency distributions through time represent a shift in climate during the early Holocene from a cooler, wetter regime to a warmer, drier one. This conclusion was re-evaluated using stable carbon and nitrogen isotope analyses of bone collagen f ...
DOI:
10.1016/j.yqres.2016.03.008

4. Lake morphometry controls the remobilization and long-term geochemical imprint of distal tephra deposition

Author:
Finney, Bruce P.,   et al.   ; Shapley, Mark D.;     Show all 2 Author
Source:
Journal of paleolimnology 2015 v.53 no.3 pp. 309-320
ISSN:
0921-2728
Subject:
elemental composition; lakes; morphometry; tephra; watersheds; Idaho
Abstract:
... Deposition of distal tephra-fall deposits in lake systems with low watershed sediment fluxes can represent large geochemical anomalies in sediment elemental composition. We examine the persistence of compositional effects of fallout from the 7.63 kyr BP Mt. Mazama caldera-forming event and other tephra deposits in the micro-laminated abyssal sediments of Pettit Lake, central Idaho, which received ...
DOI:
10.1007/s10933-015-9826-6

5. A Holocene record of ocean productivity and upwelling from the northern California continental slope

Author:
Finney, Bruce,   et al.   ; Addison, Jason A.; Barron, John; Kusler, Jennifer; Bukry, David; Heusser, Linda E.; Alexander, Clark R.;     Show all 7 Authors
Source:
Quaternary International 2017
ISSN:
1040-6182
Subject:
basins; carbon; history; marine sediments; microfossils; nitrogen; nitrogen content; opal; organic matter; rivers; stable isotopes; surface water temperature; California; Pacific Ocean
Abstract:
... The Holocene upwelling history of the northern California continental slope is examined using the high-resolution record of TN062-O550 (40.9°N, 124.6°W, 550 m water depth). This 7-m-long marine sediment core spans the last ∼7500 years, and we use it to test the hypothesis that marine productivity in the California Current System (CCS) driven by coastal upwelling has co-varied with Holocene millenn ...
DOI:
10.1016/j.quaint.2017.02.021

6. High-resolution records detect human-caused changes to the boreal forest wildfire regime in interior Alaska

Author:
Finney, Bruce P,   et al.   ; Gaglioti, Benjamin V; Mann, Daniel H; Jones, Benjamin M; Wooller, Matthew J;     Show all 5 Authors
ISSN:
1477-0911
Subject:
boreal forests; burning; charcoal; climate change; fire history; fire regime; fire scars; fire suppression; forest ecosystems; fuel loading; gold miners; humans; lakes; land use; permafrost; sediments; summer; trees; watersheds; wildfires; wildland-urban interface; Alaska
Abstract:
... Stand-replacing wildfires are a keystone disturbance in the boreal forest, and they are becoming more common as the climate warms. Paleo-fire archives from the wildland–urban interface can quantify the prehistoric fire regime and assess how both human land-use and climate change impact ecosystem dynamics. Here, we use a combination of a sedimentary charcoal record preserved in varved lake sediment ...
DOI:
10.1177/0959683616632893

7. The fate of marine-derived nutrients: tracing δ13C and δ15N through oligotrophic freshwater and linked riparian ecosystems following salmon carcass analog additions

Author:
Finney, Bruce P.,   et al.   ; Richardson, David P.; Kohler, Andre E.; Hailemichael, Million;     Show all 4 Authors
Source:
Canadian journal of fisheries and aquatic sciences 2016 v.74 no.1 pp. 41-55
ISSN:
1205-7533
Subject:
Oncorhynchus; biofilm; carbon; ecosystems; freshwater; macroinvertebrates; nitrogen; nutrients; rivers; salmon; stable isotopes; trophic levels; vegetation; watersheds; Columbia River; Idaho
Abstract:
... The oligotrophic condition of salmon-bearing catchments in the Columbia River Basin is a potential limiting factor for the recovery of Pacific salmon (Oncorhynchus spp.). To address this issue, nutrient supplementation programs attempt to mitigate for reduced marine-derived nutrients (MDN). We examined the assimilation of MDN in the biota of tributaries of the Salmon River Basin, Idaho, USA, follo ...
DOI:
10.1139/cjfas-2015-0500

8. Lake oxygen isotopes as recorders of North American Rocky Mountain hydroclimate: Holocene patterns and variability at multi-decadal to millennial time scales

Author:
Finney, Bruce P.,   et al.   ; Anderson, Lesleigh; Berkelhammer, Max; Barron, John A.; Steinman, Byron A.; Abbott, Mark B.;     Show all 6 Authors
Source:
Global and planetary change 2016 v.137 pp. 131-148
ISSN:
0921-8181
Subject:
bison; climate; deuterium; evaporation; fractionation; lakes; models; oxygen; radiative forcing; sediments; stable isotopes; North America
Abstract:
... Lake sediment oxygen isotope records (calcium carbonate-δ¹⁸O) in the western North American Cordillera developed during the past decade provide substantial evidence of Pacific ocean–atmosphere forcing of hydroclimatic variability during the Holocene. Here we present an overview of 18 lake sediment δ¹⁸O records along with a new compilation of lake water δ¹⁸O and δ²H that are used to characterize la ...
DOI:
10.1016/j.gloplacha.2015.12.021

9. Late-Holocene Indian summer monsoon variability revealed from a 3300-year-long lake sediment record from Nir’pa Co, southeastern Tibet

Author:
Finney, Bruce,   et al.   ; Bird, Broxton W; Lei, Yanbin; Perello, Melanie; Polissar, Pratigya J; Yao, Tandong; Bain, Daniel; Pompeani, David; Thompson, Lonnie G;     Show all 9 Authors
ISSN:
1477-0911
Subject:
air temperature; clay; climate; cobalt; dry environmental conditions; ice; lakes; monsoon season; sand; silt; Arabian Sea; China; India
Abstract:
... Sedimentological and geochemical results from Nir’pa Co, an alpine lake on the southeastern Tibetan Plateau, detail late-Holocene Indian summer monsoon (ISM) hydroclimate during the last 3300 years. Constrained by modern calibration, elevated silt and lithics and low sand and clay between 3.3 and 2.4 ka and 1.3 ka and the present indicate two pluvial phases with lake levels near their current over ...
DOI:
10.1177/0959683616670220

10. Maternal exposure to carbamazepine at environmental concentrations can cross intestinal and placental barriers

Author:
Finney, Bruce,   et al.   ; Kaushik, Gaurav; Huber, David P.; Aho, Ken; Bearden, Shawn; Zarbalis, Konstantinos S.; Thomas, Michael A.;     Show all 7 Authors
Source:
Biochemical and biophysical research communications 2016 v.474 pp. 291-295
ISSN:
0006-291X
Subject:
autism; brain; drinking water; drugs; embryogenesis; females; gene expression; genes; humans; in vitro studies; infants; isotopes; liver; mass spectrometry; mice; minnows; nervous system diseases; neurodevelopment; neurons; pollution; pregnancy; protein synthesis; risk; teratogens; water potential; United States
Abstract:
... Psychoactive pharmaceuticals have been found as teratogens at clinical dosage during pregnancy. These pharmaceuticals have also been detected in minute (ppb) concentrations in drinking water in the US, and are environmental contaminants that may be complicit in triggering neurological disorders in genetically susceptible individuals. Previous studies have determined that psychoactive pharmaceutica ...
DOI:
10.1016/j.bbrc.2016.04.088
PubMed:
27105911
PubMed Central:
PMC4891464

11. A multiproxy record of Holocene environmental changes from the northern Kuril Islands (Russian Far East)

Author:
Finney, Bruce,   et al.   ; Anderson, Patricia; Minyuk, Pavel; Lozhkin, Anatoly; Cherepanova, Marina; Borkhodoev, Vladimir;     Show all 6 Authors
Source:
Journal of paleolimnology 2015 v.54 no.4 pp. 379-393
ISSN:
0921-2728
Subject:
Bacillariophyceae; Pinus; carbon; freshwater; islands; lakes; landscapes; limnology; lowlands; meadows; paleontology; palynology; sea level; sediments; shrubs; snowpack; summer; temperature; transgressive segregation; tundra; Okhotsk Sea; Russia
Abstract:
... Diatom, rock magnetic, geochemical, and lithological studies of a sediment core from Paramushir Island (northern Kuril Archipelago) trace environmental shifts from bog to salt-water lagoon to freshwater lake over the past 10,000 ¹⁴C BP. Organic-rich mesic landscapes dominated the southern island until ~8200 ¹⁴C BP. Transgression of the Sea of Okhotsk onto the island began sometime after 8200 ¹⁴C B ...
DOI:
10.1007/s10933-015-9858-y

12. Response of diatoms and silicoflagellates to climate change and warming in the California Current during the past 250 years and the recent rise of the toxic diatom Pseudo-nitzschia australis

Author:
Finney, Bruce,   et al.   ; Barron, John A.; Bukry, David; Field, David B.;     Show all 4 Authors
Source:
Quaternary international 2013 v.310 pp. 140-154
ISSN:
1040-6182
Subject:
Chaetoceros; Distephanus; Rhizosolenia; Thalassionema; algal blooms; basins; climate change; cooling; domoic acid; feces; marine ecosystems; marine mammals; neurotoxins; plankton; poisoning; sediments; shellfish; spores; surface water; toxicity; Pacific Ocean
Abstract:
... Diatoms and silicoflagellate assemblages were examined in two year-increments of varved samples spanning the interval from 1748 through 2007 in Santa Barbara Basin (SBB) box core SBBC0806 to determine the timing and impact of possible 20th century warming on several different components of the plankton. Diatoms (Thalassionema nitzschioides = TN) and silicoflagellates (Distephanus speculum s.l. = D ...
DOI:
10.1016/j.quaint.2012.07.002

13. Holocene sea surface temperature and sea ice extent in the Okhotsk and Bering Seas

Author:
Finney, Bruce P.,   et al.   ; Harada, Naomi; Katsuki, Kota; Nakagawa, Mitsuhiro; Matsumoto, Akiko; Seki, Osamu; Addison, Jason A.; Sato, Miyako;     Show all 8 Authors
Source:
Progress in oceanography 2014 v.126 pp. 242-253
ISSN:
0079-6611
Subject:
Bacillariophyceae; biomarkers; climate; climate change; cooling; dust storms; ice; latitude; prediction; sediments; solar radiation; summer; surface water temperature; temporal variation; Bering Sea; Gobi Desert; Okhotsk Sea; Pacific Ocean
Abstract:
... Accurate prediction of future climate requires an understanding of the mechanisms of the Holocene climate; however, the driving forces, mechanisms, and processes of climate change in the Holocene associated with different time scales remain unclear. We investigated the drivers of Holocene sea surface temperature (SST) and sea ice extent in the North Pacific Ocean, and the Okhotsk and Bering Seas, ...
DOI:
10.1016/j.pocean.2014.04.017

14. 1,500 year quantitative reconstruction of winter precipitation in the Pacific Northwest

Author:
Finney, Bruce P.,   et al.   ; Steinman, Byron A.; Abbott, Mark B.; Mann, Michael E.; Stansell, Nathan D.;     Show all 5 Authors
Source:
Proceedings of the National Academy of Sciences of the United States of America 2012 v.109 no.29 pp. 11619-11623
ISSN:
0027-8424
Subject:
El Nino; climate; drought; growth rings; isotopes; lakes; oxygen; paleoclimatology; seasonal variation; sediments; winter
Abstract:
... Multiple paleoclimate proxies are required for robust assessment of past hydroclimatic conditions. Currently, estimates of drought variability over the past several thousand years are based largely on tree-ring records. We produced a 1,500-y record of winter precipitation in the Pacific Northwest using a physical model-based analysis of lake sediment oxygen isotope data. Our results indicate that ...
DOI:
10.1073/pnas.1201083109
PubMed:
22753510
PubMed Central:
PMC3406856

15. Holocene climate change and carbon cycling in a groundwater-fed, boreal forest lake: Dune Lake, Alaska

Author:
Finney, Bruce P.,   et al.   ; Bigelow, Nancy H.; Barber, Valerie A.; Edwards, Mary E.;     Show all 4 Authors
Source:
Journal of paleolimnology 2012 v.48 no.1 pp. 43-54
ISSN:
0921-2728
Subject:
Picea; boreal forests; carbon; climate; climate change; correlation; groundwater; hydrogeology; lakes; nitrogen content; opal; organic matter; paleoclimatology; permafrost; phytoplankton; pollen; rivers; sediments; stable isotopes; water table; winter; Alaska
Abstract:
... Opal, organic C and N contents, and organic δ13C and δ15N stable isotopes were analyzed on a sedimentary sequence spanning the past ~12,000 years from Dune Lake, a shallow groundwater-fed lake in the boreal forest region of central interior Alaska. The chronology, based on 210Pb and 15 AMS radiocarbon dates on terrestrial materials, indicates that 5 m of biogenic sediment accumulated following ...
DOI:
10.1007/s10933-012-9617-2

16. Changes in northeast Pacific marine ecosystems over the last 4500 years: evidence from stable isotope analysis of bone collagen from archeological middens

Author:
Finney, Bruce,   et al.   ; Misarti, Nicole; Maschner, Herbert; Wooller, Matthew J.;     Show all 4 Authors
Source:
TheHolocene 2009 v.19 no.8 pp. 1139-1151
ISSN:
0959-6836
Subject:
Callorhinus ursinus; Eumetopias jubatus; Gadus macrocephalus; Holocene epoch; Oncorhynchus nerka; Phoca vitulina; bones; carbon; climate; collagen; habitats; marine ecosystems; marine mammals; nitrogen; salmon; stable isotopes; trophic levels; Gulf of Alaska
Abstract:
... Changes in food web dynamics and ocean productivity over the past 4500 years are investigated using stable isotope analysis of nitrogen and carbon in collagen from animal bones preserved in coastal archeological middens on Sanak Island, along the eastern edge of the Aleutian archipelgo. Samples included Steller sea lions, Harbor seals, Northern fur seals, sea otters, Pacific cod and sockeye salmon ...
DOI:
10.1177/0959683609345075

17. Diatom and stable isotope records of late-Holocene lake ontogeny at Indrepollen, Lofoten, NW Norway: a response to glacio-isostasy and Neoglacial cooling

Author:
Finney, Bruce,   et al.   ; Mills, Keely; Mackay, Anson W.; Bradley, Raymond S.;     Show all 4 Authors
Source:
TheHolocene 2009 v.19 no.2 pp. 261-271
ISSN:
0959-6836
Subject:
Bacillariophyceae; basins; carbon; cooling; flora; freshwater; lakes; ontogeny; organic matter; sea level; sediments; stable isotopes; Norway
Abstract:
... Borg Indrepollen is a coastal lake on the island of Vestvågøy, Lofoten, NW Norway. A sedimentary sequence spanning the last 4500 cal. yr BP was analysed for diatom, C/N and stable isotopes (δ¹³C and δ¹⁵ N). The record provides clear evidence of glacio-isostatic rebound in the Lofoten region. Five distinct lithostratigraphic-geochemical zones (I—V) and four major diatom zones (A—D) were identified. ...
DOI:
10.1177/0959683608100571

18. Paleoecology of mangroves along the Sibun River, Belize

Author:
Finney, Bruce P.,   et al.   ; Monacci, Natalie M.; Meier-Grünhagen, Ursula; Behling, Hermann; Wooller, Matthew J.;     Show all 5 Authors
Source:
Quaternary research 2011 v.76 no.2 pp. 220-228
ISSN:
0033-5894
Subject:
Avicennia; Rhizophora; ecosystems; paleoecology; peat; pollen; rivers; sea level; sediments; stable isotopes; watersheds; Belize
Abstract:
... This study examines a sediment core (SR-63) from a mangrove ecosystem along the Sibun River in Belize, which is subject to both changes in sea-level and in the characteristics of the river's drainage basin. Radiocarbon dates from the core show a decreased sedimentation rate from ~6ka to 1calka BP and a marked change in lithology from primarily mangrove peat to fluvial-derived material at ~2.5calka ...
DOI:
10.1016/j.yqres.2011.06.001

19. Long-term zooplankton responses to nutrient and consumer subsidies arising from migratory sockeye salmon (Oncorhynchus nerka)

Author:
Finney, Bruce P.,   et al.   ; Chen, Guangjie; Selbie, Daniel T.; Schindler, Daniel E.; Bunting, Lynda; Leavitt, Peter R.; Gregory-Eaves, Irene;     Show all 7 Authors
Source:
Oikos 2011 v.120 no.9 pp. 1317-1326
ISSN:
0030-1299
Subject:
Oncorhynchus nerka; body size; community structure; habitats; lakes; nutrients; predation; salmon; sediments; zooplankton
Abstract:
... Migratory animals, such as Pacific salmon, can significantly shape communities in recipient habitats both by altering the flux of resources, and changing community composition and subsequent trophic interactions. Here we mainly used paleoecological records from natural sockeye salmon nursery lakes to quantify the response of plankton communities to the influx of salmon-derived nutrients and consum ...
DOI:
10.1111/j.1600-0706.2011.19042.x

20. A 130 0-year history of vegetation and environmental change at Jan Lake, east-central Alaska

Author:
Finney, Bruce P.,   et al.   ; Carlsonl, Lisa J.;     Show all 2 Author
ISSN:
0959-6836
Subject:
Alnus; Betula papyrifera; Picea glauca; Picea mariana; Populus; boreal forests; carbon; fossils; lakes; pollen; radiocarbon dating; radionuclides; sediments; shrubs; stomata; trees; tundra; Alaska; Yukon Territory
Abstract:
... Pollen, stomates and macrofossils were analysed from a 3.63 m sediment core at Jan Lake, eastcentral Alaska, in order to improve spatial resolution of patterns of vegetation history in this region. The chronology was based on 19 AMS ¹⁴C dates on plant macrofossils and concentrated pollen. Zone Jan-I (12400-11 600 yr BP) records a unique herb-tundra pollen assemblage, particularly high in Chenopodi ...
DOI:
10.1191/0959683604hl762rp