340,000-Year Centennial-Scale Marine Record of Southern Hemisphere Climatic Oscillation

Pahnke, Katharina; Elderfield, Henry; Schulz, Michael

doi:10.1126/science.1084451

Cited by 301 publications

(338 citation statements)

References 41 publications

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“…This is in general agreement with warm season temperature estimates based on radiolarian analyses. A recent study in the Southwest Pacific, also based on G. bulloides, suggests a LH-LGM SST temperature difference of 4.3 1C (Pahnke et al, 2003) which is comparable to alkenone results (3.5 1C) from a near by core (Sikes et al, 2002).…”

Section: Article In Pressmentioning

confidence: 66%

“…Barker and Elderfield, 2002;(3) Barker (this manuscript); (4) Cacho et al (in prep. ); (5) Elderfield and Ganssen, 2000;(6) Hastings et al, 1998;(7) Kiefer et al,in press;(8) Koutavas et al, 2002;(9) Lea et al, 2000;(10) Lea et al, 2003;(11) Mashiotta et al, 1999;(12) Nu¨rnberg et al, 2000;(13) Pahnke et al, 2003;(14) Palmer and Pearson, 2003;(15) Rosenthal et al, 2003;(16) Skinner (unpublished data); (17) Stott et al, 2002;(18) Visser et al, 2003. region (Pelejero et al, 1999;Kienast et al, 2001). In the eastern tropical Pacific just north of the equator, Lea et al (2000) estimated a LH-LGM temperature change of $2.8 1C based on four Mg/Ca records from G. ruber (w).…”

Section: Mg/ca Temperature Reconstructions For the Lgmmentioning

confidence: 99%

“…More recently Mg/Ca thermometry has been greatly refined and applied almost routinely to paleoceanographic questions concerning temperature variability through time (e.g. Nu¨rnberg et al, 1996;Hastings et al, 1998;Lea et al, 1999Lea et al, , 2000Lea et al, , 2002Mashiotta et al, 1999;Elderfield and Ganssen, 2000;Rosenthal et al, 2000;Koutavas et al, 2002;Stott et al, 2002;Pahnke et al, 2003;Rosenthal et al, 2003;Visser et al, 2003). Mg/ Ca ratios of other calcifying organisms have also been shown to be sensitive to changes in temperature.…”

Section: Introductionmentioning

confidence: 99%

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Planktonic foraminiferal Mg/Ca as a proxy for past oceanic temperatures: a methodological overview and data compilation for the Last Glacial Maximum

Barker

Cacho

Benway

et al. 2005

Quaternary Science Reviews

231

163

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As part of the Multi-proxy Approach for the Reconstruction of the Glacial Ocean (MARGO) incentive, published and unpublished temperature reconstructions for the Last Glacial Maximum (LGM) based on planktonic foraminiferal Mg/Ca ratios have been synthesised and made available in an online database. Development and applications of Mg/Ca thermometry are described in order to illustrate the current state of the method. Various attempts to calibrate foraminiferal Mg/Ca ratios with temperature, including culture, trap and core-top approaches have given very consistent results although differences in methodological techniques can produce offsets between laboratories which need to be assessed and accounted for where possible. Dissolution of foraminiferal calcite at the sea-floor generally causes a lowering of Mg/Ca ratios. This effect requires further study in order to account and potentially correct for it if dissolution has occurred. Mg/Ca thermometry has advantages over other paleotemperature proxies including its use to investigate changes in the oxygen isotopic composition of seawater and the ability to reconstruct changes in the thermal structure of the water column by use of multiple species from different depth and or seasonal habitats. Presently available data are somewhat limited to low latitudes where they give fairly consistent values for the temperature difference between Late Holocene and the LGM (2-3.5 1C). Data from higher latitudes are more sparse, and suggest there may be complicating factors when comparing between multi-proxy reconstructions. r

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Section: Article In Pressmentioning

confidence: 66%

Section: Mg/ca Temperature Reconstructions For the Lgmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Planktonic foraminiferal Mg/Ca as a proxy for past oceanic temperatures: a methodological overview and data compilation for the Last Glacial Maximum

Barker

Cacho

Benway

et al. 2005

Quaternary Science Reviews

231

163

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“…There are significant SST increases of 1-2 • C during Heinrich event 1 (H1) and the YD. Previous studies from the eastern equatorial and South Pacific reveal a mechanism characterized by early warming of South Pacific subtropical mode water (Pahnke et al, 2003;Lamy et al, 2004;Pena et al, 2008). This warm signal is transported along a gyre to the east equatorial Pacific (EEP) and eventually to the west Pacific through ocean tunneling (Pena et al, 2008;Qu et al, 2013, Fig.…”

Section: Solomon Sst and δ 18 O Sw−ivc Records During The Last Terminmentioning

confidence: 99%

Millennial meridional dynamics of the Indo-Pacific Warm Pool during the last termination

Shen

Wei

et al. 2014

Clim. Past

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Abstract.To develop an in-depth understanding of the natural dynamics of the Indo-Pacific Warm Pool (IPWP) during the last deglaciation, stacked north-(N-) and south-IPWP (S-IPWP) thermal and hydrological records over the past 23-10.5 ka were built using planktonic foraminiferal geochemistry data from a new core, MD05-2925 (9.3 • S, 151.5 • E, water depth 1661 m) in the Solomon Sea and eleven previous sites. Ice-volume-corrected seawater δ 18 O (δ 18 O SW−IVC ) stacks show that S-IPWP δ 18 O SW−IVC values are indistinguishable from their northern counterparts through glacial time. The N-IPWP SST (sea surface temperature) stacked record features an increasing trend of 0.5 • C ka −1 since 18 ka. Its S-IPWP counterpart shows an earlier onset of temperature increase at 19 ka and a strong teleconnection to high-latitude climate in the Southern Hemisphere. Meridional SST gradients between the N-and S-IPWP were 1-1.5 • C during the Bølling/Allerød period and 1 • C during both Heinrich event 1 and the Younger Dryas, due to a warmer S-IPWP. A warm S-IPWP during the cold events could weaken the southern hemispheric branch of the Hadley cell and reduce precipitation in the Asian monsoon region.

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“…Our Bayesian skyline plot (BSP) analysis is summarized in Figure 4 where it is temporally aligned with a graph summarizing two temperature proxies taken from Pahnke et al (2003). In Figure 4 we have used two x-axis scales, one using mutations per site per generation and the other using years before present, based on a mutation rate of 6.2 × 10 -8 mutations per site and two generations per year.…”

Section: Historical Demographymentioning

confidence: 99%

Biogeography and demography of an Australian native bee Ceratina australensis (Hymenoptera, Apidae) since the last glacial maximum

Dew¹,

Rehan²,

Schwarz³

2016

JHR

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The small carpenter bees, genus Ceratina, are highly diverse, globally distributed, and comprise the sole genus in the tribe Ceratinini. Despite the diversity of the subgenus Neoceratina in the Oriental and IndoMalayan region, Ceratina (Neoceratina) australensis is the only ceratinine species in Australia. We examine the biogeography and demography of C. australensis using haplotype variation at 677 bp of the barcoding region of COI for specimens sampled from four populations within Australia, across Queensland, New South Wales, Victoria and South Australia. There is geographic population structure in haplotypes, suggesting an origin in the northeastern populations, spreading to southern Australia. Bayesian Skyline Plot analyses indicate that population size began to increase approximately 18,000 years ago, roughly corresponding to the end of the last glacial maximum. Population expansion then began to plateau approximately 6,000 years ago, which may correspond to a slowing or plateauing in global temperatures for the current interglacial period. The distribution of C. australensis covers a surprisingly wide range of habitats, ranging from wet subtropical forests though semi-arid scrub to southern temperate coastal dunes. The ability of small carpenter bees to occupy diverse habitats in ever changing climates makes them a key species for understanding native bee diversity and response to climate change.

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340,000-Year Centennial-Scale Marine Record of Southern Hemisphere Climatic Oscillation

Cited by 301 publications

References 41 publications

Planktonic foraminiferal Mg/Ca as a proxy for past oceanic temperatures: a methodological overview and data compilation for the Last Glacial Maximum

Planktonic foraminiferal Mg/Ca as a proxy for past oceanic temperatures: a methodological overview and data compilation for the Last Glacial Maximum

Millennial meridional dynamics of the Indo-Pacific Warm Pool during the last termination

Biogeography and demography of an Australian native bee Ceratina australensis (Hymenoptera, Apidae) since the last glacial maximum

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