noaa-lake-19466 eng; USA utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact 2023-09-01 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Genovesa Crater Lake, Galápagos 400 Year Nitrogen and Carbon Isotope Data 2015-11-06 publication doi:10.25921/fn3g-mc80 noaa-lake-19466 NCEI DSI 1200_02 NCEI DSI 1200_01 Conroy, J.L. originator Conroy, J.L. author Thompson, D.M. originator Thompson, D.M. author Collins, A. originator Collins, A. author Overpeck, J.T. originator Overpeck, J.T. author Bush, M.B. originator Bush, M.B. author Cole, J.E. originator Cole, J.E. author Anderson, D.J. originator Anderson, D.J. author NOAA National Centers for Environmental Information publisher tableDigital This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Lake. The data include parameters of paleolimnology with a geographic location of Galapagos Islands, Eastern Pacific Ocean. The time period coverage is from 347 to -52 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data. Records of past climate and environment derived from lake sediment records. Parameter keywords describe what was measured in this dataset. Additional summary information can be found in the abstracts of papers listed in the dataset citations. completed NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact https://www.ncei.noaa.gov/pub/data/paleo/webimages/pc-default-lake.png Paleoclimatology - Lake PNG Earth Science > Climate Indicators > Paleoclimate Indicators > Ocean/Lake Records theme Global Change Master Directory (GCMD) Science Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology earth science > paleoclimate > paleolimnology > population abundance earth science > paleoclimate > paleolimnology > carbon isotopes theme Global Change Master Directory (GCMD) Science Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian What: delta 13C; Material: organic matter What: age; Material: null What: delta 15N; Material: organic matter What: organic carbon; Material: sediment What: delta 13C; Material: organic matter What: nitrogen; Material: sediment What: nitrogen; Material: sediment What: depth; Material: null What: delta 15N; Material: organic matter What: organic carbon; Material: sediment theme Paleoenvironmental Standard Terms (PaST) Thesaurus NOAA National Centers for Environmental Information https://www.ncei.noaa.gov/products/paleoclimatology/paleoenvironmental-standard-terms-thesaurus PaST Thesaurus information publisher Ocean > Pacific Ocean > Eastern Pacific Ocean > Galapagos Islands > Genovesa Crater Lake > LATITUDE .33 > LONGITUDE -89.96 place DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian otherRestrictions Cite as: Conroy, J.L.; Thompson, D.M.; Collins, A.; Overpeck, J.T.; Bush, M.B.; Cole, J.E.; Anderson, D.J. (2015-11-06): NOAA/WDS Paleoclimatology - Genovesa Crater Lake, Galápagos 400 Year Nitrogen and Carbon Isotope Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/fn3g-mc80. Accessed [date]. otherRestrictions Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose otherRestrictions None otherRestrictions Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. A 400-year isotopic record of seabird response to eastern tropical Pacific productivity 2015 publication Jessica L. Conroy, Aaron F. Collins, Jonathan T. Overpeck, Mark B. Bush, Julia E. Cole and David J. Anderson author Geo: Geography and Environment publisher https://doi.org/10.1002/geo2.11 HTTPS Web Browser Associated Reference published 2015 Jessica L. Conroy, Aaron F. Collins, Jonathan T. Overpeck, Mark B. Bush, Julia E. Cole and David J. Anderson, 2015: A 400-year isotopic record of seabird response to eastern tropical Pacific productivity. Geo: Geography and Environment, , , 10.1002/geo2.11 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 1603 CE to 2002 CE; Date Range: 347 cal yr BP to -52 cal yr BP; -89.96 -89.96 .33 .33 Study Coordinates .33 -89.96 1603 2002 STUDY NOTES: Sediment nitrogen (d15N) and carbon (d13C) isotope record from Genovesa Crater Lake, Galápagos for the past 400 years ABSTRACT SUPPLIED BY ORIGINATOR: Seabirds play an important role in coastal environments, serving as key indicators of marine ecosystem variability as well as biovectors that influence terrestrial productivity and carbon storage. Long-term estimates of seabird populations remain rare, but lakes that support large seabird populations in their watersheds can archive a history of seabird activity in their sediment records. Here we present a seabird guano-influenced sediment record from Genovesa Crater Lake, Galápagos Islands, home to the world's largest reported colony of red-footed boobies (Sula sula) and smaller populations of other species. Influx of seabird guano into Genovesa Crater Lake produces high sedimentary δ15N values, and temporal variability in sediment δ15N primarily reflects changes in guano influx through time. Two abrupt increases in sedimentary δ15N occurred at 1835 AD and 1965 AD, and variance increased following the 1965 AD shift. The largest of these abrupt shifts at 1835 AD coincided, within age model error, with an abrupt increase in marine productivity indicators in sediment records off the coast of Perú and Chile. In the latter part of the twentieth century, δ15N values increased during periods of higher landings of Peruvian anchoveta and sardines. We hypothesise that seabird presence and activity on Genovesa increased during periods of higher regional marine productivity. Enhanced variance in Genovesa δ15N following the 1965 AD shift may reflect a modern population more susceptible to climate and environmental variability than at any other time in the last 400 years. NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information distributor In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. Native Format(s) https://doi.org/10.25921/fn3g-mc80 HTTPS Landing Page Metadata Landing Page NCEI landing page with general information and links to access the data. information https://www.ncei.noaa.gov/access/paleo-search/study/19466 HTTPS Web Browser NOAA Study Page Study page with data access information. search https://www.ncei.noaa.gov/products/paleoclimatology/lake HTTPS Information NCEI Lake Page General information for this data type. information https://www.ncei.noaa.gov/pub/data/paleo/paleolimnology/ecuador/galapagos/genovesa2015lg1.txt HTTPS Download NCEI Direct Download Direct download links for dataset files. download https://www.ncei.noaa.gov/pub/data/paleo/paleolimnology/ecuador/galapagos/genovesa2015gu6.txt HTTPS Download NCEI Direct Download Direct download links for dataset files. download https://www.ncei.noaa.gov/pub/data/paleo/paleolimnology/ecuador/galapagos/genovesa2015gu1.txt HTTPS Download NCEI Direct Download Direct download links for dataset files. download https://www.ncei.noaa.gov/pub/data/paleo/paleolimnology/ecuador/galapagos/genovesa2015gen6.txt HTTPS Download NCEI Direct Download Direct download links for dataset files. download https://www.ncei.noaa.gov/pub/data/paleo/paleolimnology/ecuador/galapagos/genovesa2015comppol.txt HTTPS Download NCEI Direct Download Direct download links for dataset files. download https://www.ncei.noaa.gov/pub/data/paleo/paleolimnology/ecuador/galapagos/genovesa2015compiso.txt HTTPS Download NCEI Direct Download Direct download links for dataset files. download asNeeded This ISO metadata record was translated from DIF metadata using dif-9x-to-iso-19115-2.xsl Version: 2022-06-21