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  1. Article: Assessing long-term diatom changes in sub-Arctic ponds receiving high fluxes of seabird nutrients.

    Hargan, Kathryn E / Duda, Matthew P / Michelutti, Neal / Blais, Jules M / Smol, John P

    Ecology and evolution

    2024  Volume 14, Issue 2, Page(s) e11034

    Abstract: Algal bioindicators, such as diatoms, often show subdued responses to eutrophication in Arctic lakes because climate-related changes (e.g., ice cover) tend to be the overriding factors influencing assemblage composition. Here, we examined how sub-Arctic ... ...

    Abstract Algal bioindicators, such as diatoms, often show subdued responses to eutrophication in Arctic lakes because climate-related changes (e.g., ice cover) tend to be the overriding factors influencing assemblage composition. Here, we examined how sub-Arctic ponds historically receiving high nutrient inputs from nesting seabirds have responded to recent climate change. We present diatom data obtained from 12 sediment cores in seaduck-affected ponds located on islands through Hudson Strait, Canada. All study cores show consistently elevated values of sedimentary ẟ
    Language English
    Publishing date 2024-02-16
    Publishing country England
    Document type Journal Article
    ZDB-ID 2635675-2
    ISSN 2045-7758
    ISSN 2045-7758
    DOI 10.1002/ece3.11034
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: A 2200-year record of Andean Condor diet and nest site usage reflects natural and anthropogenic stressors.

    Duda, Matthew P / Grooms, Christopher / Sympson, Lorenzo / Blais, Jules M / Dagodzo, Daniel / Feng, Wenxi / Hayward, Kristen M / Julius, Matthew L / Kimpe, Linda E / Lambertucci, Sergio A / Layton-Matthews, Daniel / Lougheed, Stephen C / Massaferro, Julieta / Michelutti, Neal / Pufahl, Peir K / Vuletich, April / Smol, John P

    Proceedings. Biological sciences

    2023  Volume 290, Issue 1998, Page(s) 20230106

    Abstract: Understanding how animals respond to large-scale environmental changes is difficult to achieve because monitoring data are rarely available for more than the past few decades, if at all. Here, we demonstrate how a variety of palaeoecological proxies (e.g. ...

    Abstract Understanding how animals respond to large-scale environmental changes is difficult to achieve because monitoring data are rarely available for more than the past few decades, if at all. Here, we demonstrate how a variety of palaeoecological proxies (e.g. isotopes, geochemistry and DNA) from an Andean Condor (
    MeSH term(s) Humans ; Animals ; Cattle ; Sheep ; Anthropogenic Effects ; Deer ; Falconiformes ; Birds ; Diet
    Language English
    Publishing date 2023-05-03
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 209242-6
    ISSN 1471-2954 ; 0080-4649 ; 0962-8452 ; 0950-1193
    ISSN (online) 1471-2954
    ISSN 0080-4649 ; 0962-8452 ; 0950-1193
    DOI 10.1098/rspb.2023.0106
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1364: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
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    Jg. 1995 - 2021: Lesesall (1.OG)
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  3. Article ; Online: Climate oscillations drive millennial-scale changes in seabird colony size.

    Duda, Matthew P / Cyr, Frédéric / Robertson, Gregory J / Michelutti, Neal / Meyer-Jacob, Carsten / Hedd, April / Montevecchi, William A / Kimpe, Linda E / Blais, Jules M / Smol, John P

    Global change biology

    2022  Volume 28, Issue 14, Page(s) 4292–4307

    Abstract: Seabird population size is intimately linked to the physical, chemical, and biological processes of the oceans. Yet, the overall effects of long-term changes in ocean dynamics on seabird colonies are difficult to quantify. Here, we used dated lake ... ...

    Abstract Seabird population size is intimately linked to the physical, chemical, and biological processes of the oceans. Yet, the overall effects of long-term changes in ocean dynamics on seabird colonies are difficult to quantify. Here, we used dated lake sediments to reconstruct ~10,000-years of seabird dynamics in the Northwest Atlantic to determine the influences of Holocene-scale climatic oscillations on colony size. On Baccalieu Island (Newfoundland and Labrador, Canada)-where the world's largest colony of Leach's storm-petrel (Hydrobates leucorhous Vieillot 1818) currently breeds-our data track seabird colony growth in response to warming during the Holocene Thermal Maximum (ca. 9000 to 6000 BP). From ca. 5200 BP to the onset of the Little Ice Age (ca. 550 BP), changes in colony size were correlated to variations in the North Atlantic Oscillation (NAO). By contrasting the seabird trends from Baccalieu Island to millennial-scale changes of storm-petrel populations from Grand Colombier Island (an island in the Northwest Atlantic that is subjected a to different ocean climate), we infer that changes in NAO influenced the ocean circulation, which translated into, among many things, changes in pycnocline depth across the Northwest Atlantic basin where the storm-petrels feed. We hypothesize that the depth of the pycnocline is likely a strong bottom-up control on surface-feeding storm-petrels through its influence on prey accessibility. Since the Little Ice Age (LIA), the effects of ocean dynamics on seabird colony size have been altered by anthropogenic impacts. Subsequently, the colony on Baccalieu Island grew at an unprecedented rate to become the world's largest resulting from favorable conditions linked to climate warming, increased vegetation (thereby nesting habitat), and attraction of recruits from other colonies that are now in decline. We show that although ocean dynamics were an important driver of seabird colony dynamics, its recent influence has been modified by human interference.
    MeSH term(s) Animals ; Birds/physiology ; Canada ; Ecosystem ; Humans ; Lakes ; Population Density
    Language English
    Publishing date 2022-04-20
    Publishing country England
    Document type Journal Article
    ZDB-ID 1281439-8
    ISSN 1365-2486 ; 1354-1013
    ISSN (online) 1365-2486
    ISSN 1354-1013
    DOI 10.1111/gcb.16171
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    In stock of ZB MED Bonn / Germany

    Z 6338: Show issues

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  4. Article: Long-Term Changes in Terrestrial Vegetation Linked to Shifts in a Colonial Seabird Population

    Duda, Matthew P / Glew, John R / Michelutti, Neal / Robertson, Gregory J / Montevecchi, William A / Kissinger, Jennifer A / Eickmeyer, David C / Blais, Jules M / Smol, John P

    Ecosystems. 2020 Dec., v. 23, no. 8

    2020  

    Abstract: Seabirds that form large colonies often act as biovectors that transport and concentrate large amounts of nutrients, metals, and contaminants from marine feeding areas to inland breeding grounds. This enrichment can potentially transform and structure ... ...

    Abstract Seabirds that form large colonies often act as biovectors that transport and concentrate large amounts of nutrients, metals, and contaminants from marine feeding areas to inland breeding grounds. This enrichment can potentially transform and structure primary productivity, vegetation communities, and species richness. In a previous paleolimnological study, we examined approximately 1700 years of population change in the world’s largest colony of Leach’s Storm-petrel (Hydrobates leucorhous) on Baccalieu Island (Newfoundland and Labrador, Canada) and, using a variety of proxies, we identified two peaks in colony around 500 and 1980 CE. Here, we analyzed the same sediment cores for fossil pollen assemblages to explore the effects of changing seabird populations on terrestrial vegetation. Aerial imagery revealed the island’s vegetation cover that increased from about 23% to about 58% between 1940 and 2017, in part coinciding with the rapid colony growth until around 1980. Palynological analyses indicated shifts from tree and shrub habitat to storm-petrels’ preferred habitat of fern, grass, and moss during peak seabird abundances around 500 and 1980 CE. Also, during peaks in colony size, nitrogen-fixing alder (Alnus spp.) decreased in relative abundance likely due to poorer competitive potential because of guano-derived nitrogen fertilization. Furthermore, we observed increases in fungal hyphae concurrent with the inferred size of the storm-petrel colony, providing the potential for a novel proxy to track burrowing seabirds in sediment records. Collectively, our data show that storm-petrels acted as ecosystem engineers by markedly modifying the island’s vegetation cover and composition. If global seabird colonies continue to decline at current rates, there may be considerable bottom-up ramifications to terrestrial island ecosystems.
    Keywords Alnus ; Hydrobates pelagicus ; ecosystems ; ferns and fern allies ; fungi ; grasses ; habitats ; hyphae ; mosses and liverworts ; nitrogen ; nitrogen fixation ; palynology ; population dynamics ; primary productivity ; remote sensing ; seabirds ; sediments ; shrubs ; species richness ; trees ; vegetation cover ; Newfoundland and Labrador
    Language English
    Dates of publication 2020-12
    Size p. 1643-1656.
    Publishing place Springer US
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 1428921-0
    ISSN 1435-0629 ; 1432-9840
    ISSN (online) 1435-0629
    ISSN 1432-9840
    DOI 10.1007/s10021-020-00494-8
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    In stock of ZB MED Bonn / Germany

    Z 6928: Show issues

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  5. Article: Breeding eider ducks strongly influence subarctic coastal pond chemistry

    Duda, Matthew P / H. Grant Gilchrist / John P. Smol / Jules M. Blais / Kathryn E. Hargan / Linda E. Kimpe / Mark L. Mallory / Neal Michelutti / Nik Clyde

    Aquatic sciences. 2018 Oct., v. 80, no. 4

    2018  

    Abstract: Arctic freshwater ponds are typically pristine and oligotrophic, however seabird biovectors can markedly alter water quality via enrichment with marine-derived nutrients and bioaccumulated metals. These ornithogenic inputs can be the dominant factor ... ...

    Abstract Arctic freshwater ponds are typically pristine and oligotrophic, however seabird biovectors can markedly alter water quality via enrichment with marine-derived nutrients and bioaccumulated metals. These ornithogenic inputs can be the dominant factor structuring aquatic biota and the surrounding island flora. Here, we measured a suite of limnological water chemistry variables and sediment geochemistry from 21 freshwater ponds influenced by Common Eiders (Somateria mollissima) in Hudson Strait, near the northern communities of Cape Dorset (Nunavut) and Ivujivik (Quebec). Nest counts and sedimentary δ15N values were used as proxies of bird abundance. Nutrient-rich guano from the nesting eiders visibly promoted the growth of catchment vegetation. Elevated metal (Al, Cd, Zn), metalloid (Se), and nutrient concentrations (N, P) in the water of eider-affected sites were recorded (Sign test; p = 0.004), but the proximity of many sites to the coast meant that variables related to ocean spray (conductivity, Na+, Mg2+, Cl−, Sr) confounded the effects of birds on pond water chemistry. In contrast, sediment geochemistry appeared to more clearly characterize sites according to the level of eider activity in their catchments by tracking Pb, Cd, N, and P sedimentary concentrations (Sign test; p = 0.02). These results have direct implications for reconstructing historical eider population trends using sediment archives, which is necessary to inform effective conservation management strategies.
    Keywords aluminum ; animal manures ; breeding ; cadmium ; chlorides ; coasts ; ducks ; flora ; freshwater ; geochemistry ; hydrochemistry ; lead ; magnesium ; metalloids ; nesting ; nitrogen ; nutrient content ; nutrients ; ponds ; seabirds ; sediments ; sodium ; Somateria mollissima ; stable isotopes ; strontium ; vegetation ; water quality ; watersheds ; zinc ; Arctic region ; Nunavut ; Quebec
    Language English
    Dates of publication 2018-10
    Size p. 40.
    Publishing place Springer International Publishing
    Document type Article
    ZDB-ID 1464021-1
    ISSN 1420-9055 ; 1015-1621
    ISSN (online) 1420-9055
    ISSN 1015-1621
    DOI 10.1007/s00027-018-0591-2
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  6. Article ; Online: Striking centennial-scale changes in the population size of a threatened seabird.

    Duda, Matthew P / Robertson, Gregory J / Lim, Joeline E / Kissinger, Jennifer A / Eickmeyer, David C / Grooms, Christopher / Kimpe, Linda E / Montevecchi, William A / Michelutti, Neal / Blais, Jules M / Smol, John P

    Proceedings. Biological sciences

    2020  Volume 287, Issue 1919, Page(s) 20192234

    Abstract: Many animal populations are under stress and declining. For numerous marine bird species, only recent or sparse monitoring data are available, lacking the appropriate temporal perspective needed to consider natural, long-term population dynamics when ... ...

    Abstract Many animal populations are under stress and declining. For numerous marine bird species, only recent or sparse monitoring data are available, lacking the appropriate temporal perspective needed to consider natural, long-term population dynamics when developing conservation strategies. Here, we use a combination of established palaeoenvironmental approaches to examine the centennial-scale dynamics of the world's largest colony (representing approx. 50% of the global population) of the declining and vulnerable Leach's Storm-petrel (
    MeSH term(s) Animals ; Birds ; Endangered Species ; Population Density ; Population Dynamics
    Language English
    Publishing date 2020-01-22
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 209242-6
    ISSN 1471-2954 ; 0080-4649 ; 0962-8452 ; 0950-1193
    ISSN (online) 1471-2954
    ISSN 0080-4649 ; 0962-8452 ; 0950-1193
    DOI 10.1098/rspb.2019.2234
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1364: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
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    ab Jg. 2022: Lesesaal (EG)

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  7. Article ; Online: Linking 19th century European settlement to the disruption of a seabird's natural population dynamics.

    Duda, Matthew P / Allen-Mahé, Sylvie / Barbraud, Christophe / Blais, Jules M / Boudreau, Amaël / Bryant, Rachel / Delord, Karine / Grooms, Christopher / Kimpe, Linda E / Letournel, Bruno / Lim, Joeline E / Lormée, Hervé / Michelutti, Neal / Robertson, Gregory J / Urtizbéréa, Frank / Wilhelm, Sabina I / Smol, John P

    Proceedings of the National Academy of Sciences of the United States of America

    2020  Volume 117, Issue 51, Page(s) 32484–32492

    Abstract: Recent estimates indicate that ∼70% of the world's seabird populations have declined since the 1950s due to human activities. However, for almost all bird populations, there is insufficient long-term monitoring to understand baseline (i.e., preindustrial) ...

    Abstract Recent estimates indicate that ∼70% of the world's seabird populations have declined since the 1950s due to human activities. However, for almost all bird populations, there is insufficient long-term monitoring to understand baseline (i.e., preindustrial) conditions, which are required to distinguish natural versus anthropogenically driven changes. Here, we address this lack of long-term monitoring data with multiproxy paleolimnological approaches to examine the long-term population dynamics of a major colony of Leach's Storm-petrel (
    MeSH term(s) Animals ; Atlantic Ocean ; Birds ; Carbon Isotopes/analysis ; Conservation of Natural Resources ; Diatoms ; Ecosystem ; Environmental Monitoring ; Eutrophication ; France ; Geographic Information Systems ; Geologic Sediments/analysis ; Humans ; Interferon-Induced Helicase, IFIH1/analysis ; Islands ; Nitrogen Isotopes/analysis ; Ponds ; Population Dynamics ; Zinc/analysis
    Chemical Substances Carbon Isotopes ; Nitrogen Isotopes ; Nitrogen-15 ; Interferon-Induced Helicase, IFIH1 (EC 3.6.4.13) ; Carbon-13 (FDJ0A8596D) ; Zinc (J41CSQ7QDS)
    Language English
    Publishing date 2020-12-07
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 209104-5
    ISSN 1091-6490 ; 0027-8424
    ISSN (online) 1091-6490
    ISSN 0027-8424
    DOI 10.1073/pnas.2016811117
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1148: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
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