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  • 1
    Online-Ressource
    Online-Ressource
    Cahokia$s Boom and Bust in the Context of Climate Change
    Cambridge University Press (CUP) ; 2009
    In:  American Antiquity Vol. 74, No. 3 ( 2009-07), p. 467-483
    Details
    In: American Antiquity, Cambridge University Press (CUP), Vol. 74, No. 3 ( 2009-07), p. 467-483
    Kurzfassung: Durante la fase temprana del Lohmann Mississíppico (A.D. 1050-1100), el American Bottom se transformó política y económicamente. Esta transformación incluyó la rápida planeación de la construcción de Cahokia, una llegada masiva de gente al su centro, el abandono de los asentamientos de villas pre-Mississíppicas, la reorganización de la agricultura en las partes bajas del río Mississippi y la fundación del complejo agrícola Richland en la tierras altas de Illinois. Nuevos registros de cambio climático, basados en anillos de árboles, indican que este rápido desarrollo ocurrió durante uno de los más húmedos períodos de 50 años del último milenio. Durante los 150 años siguientes, una serie de sequías persistentes ocurrieron en el área de Cahokia, lo que debe relacionarse con el abandono del American Bottom. Para 1150 A.D., en la última parte de una severa sequía de 15 años, el complejo agrícola Richland fue casi abandonado, eliminando una parte integral de la base agrícola de Cahokia. Casi al mismo tiempo, una palizada de 20,000 estacas fue levantada alrededor de Monks Mound y la Grand Plaza, indicando el incremento de conflictos sociales. Durante este tiempo, la gente empezó a salir de Cahokia y, para fines de la fase Stirling (1200 A.D.), la población de Cahokia había decrecido cerca del 50 por ciento; para 1350 A.D., Cahokia y gran parte del valle central del Mississippi habían sido abandonados.
    Materialart: Online-Ressource
    ISSN: 0002-7316 , 2325-5064
    URL: Article
    DOI: 10.1017/S000273160004871X
    Sprache: Englisch
    Verlag: Cambridge University Press (CUP)
    Publikationsdatum: 2009
    ZDB Id: 2050689-2
    SSG: 7,26
    SSG: 6,14
    SSG: 6,33
    SSG: 6,11
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 2
    Online-Ressource
    Online-Ressource
    Reply to Comments of Nolan and Cook
    Cambridge University Press (CUP) ; 2010
    In:  American Antiquity Vol. 75, No. 4 ( 2010-10), p. 984-985
    Details
    In: American Antiquity, Cambridge University Press (CUP), Vol. 75, No. 4 ( 2010-10), p. 984-985
    Kurzfassung: La siguiente respuesta a los comentarios de Nolan y Cook hace los siguientes puntos. El Índice de Palmer para la severidad de la sequía (PDSI por sus siglas en ingles) no es una medida de las lluvias de verano. El "Big Bang" de Cahokia se fecha al final de la fase de Endelhardt y se continúa a través de la fase de Lohmann. El "American Bottom" se refiere solo a la Rivera inundable del Río Missisipi en la vecindad del Este de St Louis. La naturaleza exacta de la respuesta humana al cambio climático no puede predecirse con base únicamente en los datos del PDSI.
    Materialart: Online-Ressource
    ISSN: 0002-7316 , 2325-5064
    URL: Article
    DOI: 10.7183/0002-7316.75.4.984
    Sprache: Englisch
    Verlag: Cambridge University Press (CUP)
    Publikationsdatum: 2010
    ZDB Id: 2050689-2
    SSG: 7,26
    SSG: 6,14
    SSG: 6,33
    SSG: 6,11
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 3
    Online-Ressource
    Online-Ressource
    Reconstructed Summer Degree Days in Central Alaska and Northwestern Canada since 1524
    Cambridge University Press (CUP) ; 1985
    In:  Quaternary Research Vol. 23, No. 1 ( 1985-01), p. 18-26
    Details
    In: Quaternary Research, Cambridge University Press (CUP), Vol. 23, No. 1 ( 1985-01), p. 18-26
    Kurzfassung: Three time series based on precisely dated annual tree-ring widths have been used to reconstruct June plus July degree days for the central Alaska and northwestern Canada region. The time series are the longest recently developed chronologies for the area and represent 57 core samples from 27 trees. The degree-year-to-year variation and day reconstruction, extending back to A.D. 1524, exhibits much extended warming and cooling trends including a general warming trend from about 1840 to 1960. The reconstruction is in agreement with some subaretic glacial information and with data of percentage melting from arctic ice cores. This and similar reconstructions can provide quantitative information to compare with general circulation and energy budget models for longer time periods than are available in recorded meteorological data.
    Materialart: Online-Ressource
    ISSN: 0033-5894 , 1096-0287
    URL: Article
    DOI: 10.1016/0033-5894(85)90068-7
    RVK:
    RA 1000
    Sprache: Englisch
    Verlag: Cambridge University Press (CUP)
    Publikationsdatum: 1985
    ZDB Id: 1471589-2
    ZDB Id: 205711-6
    SSG: 13
    SSG: 14
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 4
    Online-Ressource
    Online-Ressource
    Annual rings in a native Hawaiian tree, Sophora chrysophylla , on Maunakea, Hawaiʻi
    Cambridge University Press (CUP) ; 2015
    In:  Journal of Tropical Ecology Vol. 31, No. 6 ( 2015-11), p. 567-571
    Details
    In: Journal of Tropical Ecology, Cambridge University Press (CUP), Vol. 31, No. 6 ( 2015-11), p. 567-571
    Kurzfassung: Annual rings are not commonly produced in tropical trees because they grow in a relatively aseasonal environment. However, in the subalpine zones of Hawaiʻi's highest volcanoes, there is often strong seasonal variability in temperature and rainfall. Using classical dendrochronological methods, annual growth rings were shown to occur in Sophora chrysophylla , a native tree species on Maunakea, Hawaiʻi. Chronologies were established from nearby non-native, live conifer trees and these were used to verify the dates from a total of 52 series from 22 S. chrysophylla trees, establishing an 86-y chronology (1926–2011). Ring-width patterns were significantly correlated with monthly rainfall from August of the previous year. This study is the first in the eastern tropical Pacific region to demonstrate annual growth rings in trees.
    Materialart: Online-Ressource
    ISSN: 0266-4674 , 1469-7831
    URL: Article
    DOI: 10.1017/S026646741500036X
    RVK:
    WA 15000
    Sprache: Englisch
    Verlag: Cambridge University Press (CUP)
    Publikationsdatum: 2015
    ZDB Id: 1466679-0
    SSG: 12
    SSG: 23
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 5
    Online-Ressource
    Online-Ressource
    Tree-Ring Dating of Baldcypress and the Potential for Millennia-Long Chronologies in the Southeast
    Cambridge University Press (CUP) ; 1985
    In:  American Antiquity Vol. 50, No. 4 ( 1985-10), p. 796-802
    Details
    In: American Antiquity, Cambridge University Press (CUP), Vol. 50, No. 4 ( 1985-10), p. 796-802
    Kurzfassung: The tree-ring dating of baldcypress has been achieved in the southeastern United States, and the first 500 to 600 year long baldcypress chronologies have been developed from remnant stands of old-growth trees. An 800 year long cypress tree-ring chronology based on living trees and extended with long dead submerged logs has recently been dated, demonstrating the feasibility for very long chronology extension using progressively older sources of preserved cypress wood from old-growth trees, historic buildings, prehistoric archaeological sites, and natural deposits of submerged and buried logs and stumps. The longevity, climate sensitivity, and excellent preservation of ancient baldcypress wood make this species the only realistic prospect for millennia-long tree-ring chronologies extending to the mid-holocene in the Southeast, with important potential applications to the tree-ring dating of prehistoric archaeological sites, paleoclimatic reconstruction, and the calibration of independent dating methods.
    Materialart: Online-Ressource
    ISSN: 0002-7316 , 2325-5064
    URL: Article
    DOI: 10.2307/280168
    Sprache: Englisch
    Verlag: Cambridge University Press (CUP)
    Publikationsdatum: 1985
    ZDB Id: 2050689-2
    SSG: 7,26
    SSG: 6,14
    SSG: 6,33
    SSG: 6,11
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 6
    Online-Ressource
    Online-Ressource
    The potential to strengthen temperature reconstructions in ecoregions with limited tree line using a multispecies approach
    Cambridge University Press (CUP) ; 2019
    In:  Quaternary Research Vol. 92, No. 2 ( 2019-09), p. 583-597
    Details
    In: Quaternary Research, Cambridge University Press (CUP), Vol. 92, No. 2 ( 2019-09), p. 583-597
    Kurzfassung: Tree-ring reconstructions of temperature often target trees at altitudinal or latitudinal tree line where annual growth is broadly expected to be limited by and respond to temperature variability. Based on this principal, regions with sparse tree line would seem to be restricted in their potential to reconstruct past temperatures. In the northeastern United States, there are only two published temperature reconstructions. Previous work in the region reconstructing moisture availability, however, has shown that using a greater diversity of species can improve reconstruction model skill. Here, we use a network of 228 tree-ring records composed of 29 species to test the hypothesis that an increase in species diversity among the pool of predictors improves reconstructions of past temperatures. Chamaecyparis thyoides alone explained 31% of the variability in observed cool-season minimum temperatures, but a multispecies model increased the explained variance to 44%. Liriodendron tulipifera , a species not previously used for temperature reconstructions, explained a similar amount of variance as Chamaecyparis thyoides (12.9% and 20.8%, respectively). Increasing the species diversity of tree proxies has the potential for improving reconstruction of paleotemperatures in regions lacking latitudinal or elevational tree lines provided that long-lived hardwood records can be located.
    Materialart: Online-Ressource
    ISSN: 0033-5894 , 1096-0287
    URL: Article
    DOI: 10.1017/qua.2019.33
    RVK:
    RA 1000
    Sprache: Englisch
    Verlag: Cambridge University Press (CUP)
    Publikationsdatum: 2019
    ZDB Id: 1471589-2
    ZDB Id: 205711-6
    SSG: 13
    SSG: 14
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 7
    Online-Ressource
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    Advances in cumulative effects assessment and application in marine and coastal management
    Cambridge University Press (CUP) ; 2023
    In:  Cambridge Prisms: Coastal Futures Vol. 1 ( 2023)
    Details
    In: Cambridge Prisms: Coastal Futures, Cambridge University Press (CUP), Vol. 1 ( 2023)
    Kurzfassung: Quantifying and managing the cumulative effects of human activities on coastal and marine environments is among the foremost challenges in enabling sustainable development in the twenty-first century. As the speed with which these environments are changing increases, there is greater impetus to resolve the evident problems facing governance systems responsible for managing cumulative impacts. Policymakers and regulators recognise the need to assess and manage cumulative effects, as evidenced by widespread legislation requiring cumulative effects assessment (CEA). Yet there is ample evidence that we are not turning the tide in terms of balancing good environmental health with increasing demands of already degraded coastal and marine spaces that are increasingly impacted by climate change. This paper reviews the current state of knowledge regarding scientific and practical advances in CEA, assesses whether these advances are being applied in decision-making and identifies where challenges to implementation exist. Priority research questions are formulated to accelerate the inclusion of effective CEA in marine and coastal planning and management.
    Materialart: Online-Ressource
    ISSN: 2754-7205
    URL: Article
    DOI: 10.1017/cft.2023.6
    Sprache: Englisch
    Verlag: Cambridge University Press (CUP)
    Publikationsdatum: 2023
    ZDB Id: 3156931-6
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