TY  - JOUR
A1  - Deino, A. L.
A1  - Dommain, René
A1  - Keller, C. B.
A1  - Potts, R.
A1  - Behrensmeyer, A. K.
A1  - Beverly, E. J.
A1  - King, J.
A1  - Heil, C. W.
A1  - Stockhecke, M.
A1  - Brown, E. T.
A1  - Moerman, J.
A1  - deMenocal, P.
A1  - Deocampo, D.
A1  - Garcin, Yannick
A1  - Levin, N. E.
A1  - Lupien, R.
A1  - Owen, R. B.
A1  - Rabideaux, N.
A1  - Russell, J. M.
A1  - Scott, J.
A1  - Riedl, S.
A1  - Brady, K.
A1  - Bright, J.
A1  - Clark, J. B.
A1  - Cohen, A.
A1  - Faith, J. T.
A1  - Noren, A.
A1  - Muiruri, V.
A1  - Renaut, R.
A1  - Rucina, S.
A1  - Uno, K.
T1  - Chronostratigraphic model of a high-resolution drill core record of the past million years from the Koora Basin, south Kenya Rift: Overcoming the difficulties of variable sedimentation rate and hiatuses
JF  - Quaternary science reviews : the international multidisciplinary research and review journal
N2  - The Olorgesailie Drilling Project and the related Hominin Sites and Paleolakes Drilling Project in East Africa were initiated to test hypotheses and models linking environmental change to hominin evolution by drilling lake basin sediments adjacent to important archeological and paleoanthropological sites. Drill core OL012-1A recovered 139 m of sedimentary and volcaniclastic strata from the Koora paleolake basin, southern Kenya Rift, providing the opportunity to compare paleoenvironmental influences over the past million years with the parallel record exposed at the nearby Olorgesailie archeological site. To refine our ability to link core-to-outcrop paleoenvironmental records, we institute here a methodological framework for deriving a robust age model for the complex lithostratigraphy of OL012-1A. Firstly, chronostratigraphic control points for the core were established based on 4 Ar/39Ar ages from intercalated tephra deposits and a basal trachyte flow, as well as the stratigraphic position of the Brunhes-Matuyama geomagnetic reversal. This dataset was combined with the position and duration of paleosols, and analyzed using a new Bayesian algorithm for high-resolution age-depth modeling of hiatus-bearing stratigraphic sections. This model addresses three important aspects relevant to highly dynamic, nonlinear depositional environments: 1) correcting for variable rates of deposition, 2) accommodating hiatuses, and 3) quantifying realistic age uncertainty with centimetric resolution. Our method is applicable to typical depositional systems in extensional rifts as well as to drill cores from other dynamic terrestrial or aquatic environments. We use the core age model and lithostratigraphy to examine the inter connectivity of the Koora Basin to adjacent areas and sources of volcanism. (C) 2019 Elsevier Ltd. All rights reserved.
KW  - Pleistocene
KW  - Paleolimnology
KW  - East Africa
KW  - Sedimentology
KW  - Radiogenic isotopes
KW  - Bayesian modeling
KW  - paleosol
KW  - Tephrostratigraphy
KW  - Magnetostratigraphy
KW  - Kenya Rift
Y1  - 2019
U6  - https://doi.org/10.1016/j.quascirev.2019.05.009
SN  - 0277-3791
VL  - 215
SP  - 213
EP  - 231
PB  - Elsevier
CY  - Oxford
ER  - 
TY  - JOUR
A1  - Germonpre, Mietje
A1  - Sablin, Mikhail V.
A1  - Laznickova-Galetova, Martina
A1  - Despres, Viviane
A1  - Stevens, Rhiannon E.
A1  - Stiller, Mathias
A1  - Hofreiter, Michael
T1  - Palaeolithic dogs and Pleistocene wolves revisited: a reply to Morey (2014)
JF  - Journal of archaeological science
N2  - This is a reply to the comments of Morey (2014) on our identification of Palaeolithic dogs from several European Palaeolithic sites. In his comments Morey (2014) presents some misrepresentations and misunderstandings that we remedy here. In contrast to what Morey (2014) propounds, our results suggest that the domestication of the wolf was a long process that started early in the Upper Palaeolithic and that since that time two sympatric canid morphotypes can be seen in Eurasian sites: Pleistocene wolves and Palaeolithic dogs. Contrary to Morey (2014), we are convinced that the study of this domestication process should be multidisciplinary. (C) 2014 Elsevier Ltd. All rights reserved.
KW  - Canid morphotype
KW  - Dog
KW  - Domestication
KW  - Palaeolithic
KW  - Pleistocene
KW  - Wolf
Y1  - 2015
U6  - https://doi.org/10.1016/j.jas.2014.11.035
SN  - 0305-4403
SN  - 1095-9238
VL  - 54
SP  - 210
EP  - 216
PB  - Elsevier
CY  - London
ER  - 
TY  - JOUR
A1  - Nexer, Maelle
A1  - Authemayou, Christine
A1  - Schildgen, Taylor F.
A1  - Hantoro, Wahyoe S.
A1  - Molliex, Stephane
A1  - Delcaillau, Bernard
A1  - Pedoja, Kevin
A1  - Husson, Laurent
A1  - Regard, Vincent
T1  - Evaluation of morphometric proxies for uplift on sequences of coral reef terraces: A case study from Sumba Island (Indonesia)
JF  - Geomorphology : an international journal on pure and applied geomorphology
N2  - Sequences of coral reef terraces characterized by staircase morphologies and a homogeneous lithology make them appropriate to isolate the influence of uplift on drainage morphology. Along the northern coast of Sumba Island, Indonesia, we investigated the correlations between landscape morphology and uplift rates, which range from 0.02 to 0.6 mm.yr(-1). We studied eight morphometric indices at two scales: whole island (similar to 11,000 km(2)) and within sequences of reefal terraces (similar to 3000 km(2)). At the latter scale, we extracted morphometric indices for 15 individual catchments draining mostly the reefal terraces and for 30 areas undergoing specific ranges of uplift rates draining only the reefal terraces. Indices extracted from digital elevation models include residual relief, incision, stream gradient indices (SL and k(sn)), the hypsometric integral, drainage area, mean relief, and the shape factor. We find that SL, the hypsometric integral, mean relief and the shape factor of catchments positively correlate with uplift rates, whereas incision, residual relief, and k(sn) do not. More precisely, we find that only the areas that are uplifting at a rate faster than 03 mm.yr(-1) can yield the extreme values for these indices, implying that these extreme values are indicative of fast uplifting areas. However, the relationship is not bivalent because any uplift rate can be associated with low values of the same indices. For all indices, the transient conditions of the drainage influence the correlation with Pleistocene mean uplift rates, illustrating the necessity to extract morphometric indices with an appropriate choice of catchment scale. This type of analysis helps to identify the morphometric indices that are most useful for tectonic analysis in areas of unknown uplift, allowing for easy identification of short spatial variations of uplift rate and detection of areas with relatively fast uplift rates in unstudied coastal zones. (C) 2015 Elsevier B.V. All rights reserved.
KW  - Drainage morphometry
KW  - Coral reef terraces
KW  - Uplift
KW  - Pleistocene
KW  - Sumba Island
KW  - Indonesia
Y1  - 2015
U6  - https://doi.org/10.1016/j.geomorph.2015.03.036
SN  - 0169-555X
SN  - 1872-695X
VL  - 241
SP  - 145
EP  - 159
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Pailles, Christine
A1  - Sylvestre, Florence
A1  - Escobar, Jaime
A1  - Tonetto, Alain
A1  - Rustig, Sybille
A1  - Mazur, Jean-Charles
T1  - Cyclotella petenensis and Cyclotella cassandrae, two new fossil diatoms from Pleistocene sediments of Lake Peten-Itza, Guatemala, Central America
JF  - Phytotaxa : a rapid international journal for accelerating the publication of botanical taxonomy
N2  - While analyzing the fossil diatom flora in one of the longest paleolimnological records (core PI-6) from Lake Peten-Itza, lowland Guatemala, we encountered Aulacoseira Thwaites, Cyclotella (Kutzing) and Discostella (Cleve & Grunow) Houk & Klee species appearing successively in the record. Among them, two new species that are assigned to the genus Cyclotella are described herein. Cyclotella petenensis sp. nov. is characterised by a coarse striation marked by a shadow line and a tangentially undulate central area with an arc of central fultoportulae. Cyclotella cassandrae sp. nov. has an elliptically shaped valve, coarse striae and a scattered ring of central fultoportulae in the central area. Classification and differences to similar taxa in the genus Cyclotella are discussed.
KW  - Diatom
KW  - Cyclotella
KW  - Pleistocene
KW  - Lake Peten-Itza
KW  - Guatemala
Y1  - 2018
U6  - https://doi.org/10.11646/phytotaxa.351.4.1
SN  - 1179-3155
SN  - 1179-3163
VL  - 351
IS  - 4
SP  - 247
EP  - 263
PB  - Magnolia Press
CY  - Auckland
ER  - 
TY  - JOUR
A1  - Palagushkina, Olga V.
A1  - Wetterich, Sebastian
A1  - Schirrmeister, Lutz
A1  - Nazarova, Larisa B.
T1  - Modern and fossil diatom assemblages from Bol’shoy Lyakhovsky Island (New Siberian Archipelago, Arctic Siberia)
JF  - Contemporary Problems of Ecology
N2  - This article discusses the results of a taxonomic and ecological investigation of diatoms from polygonal ponds and Quaternary permafrost deposits of Bol’shoy Lyakhovsky Island (New Siberian Archipelago) and the reconstruction of climatic changes on the Island during late Pleistocene/Holocene transition using fossil diatom assemblages from the permafrost deposits. The taxonomic list of diatoms includes 159 diatom species. The main ecological factors that determine the distribution of diatoms in the investigated data set are mean July air temperature, рН, electrical conductivity, water depth, and concentrations of Si4+ and Al3+. An increase in water depth and stable lacustrine conditions in the Lateglacial–Holocene in the ancient thermokarst lake relate to Lateglacial warming before 11860 ± 160 years BP and during the early Holocene between 11210 ± 160 and 7095 ± 60 years BP.
KW  - Pleistocene
KW  - Holocene
Y1  - 2017
U6  - https://doi.org/10.1134/S1995425517040060
SN  - 1995-4255
SN  - 1995-4263
VL  - 10
SP  - 380
EP  - 394
PB  - Pleiades Publ.
CY  - New York
ER  - 
TY  - JOUR
A1  - Trauth, Martin H.
A1  - Asrat, Asfawossen
A1  - Düsing, Walter
A1  - Foerster, Verena
A1  - Krämer, K. Hauke
A1  - Marwan, Norbert
A1  - Maslin, Mark A.
A1  - Schäbitz, Frank
T1  - Classifying past climate change in the Chew Bahir basin, southern Ethiopia, using recurrence quantification analysis
JF  - Climate dynamics : observational, theoretical and computational research on the climate system
N2  - The Chew Bahir Drilling Project (CBDP) aims to test possible linkages between climate and evolution in Africa through the analysis of sediment cores that have recorded environmental changes in the Chew Bahir basin. In this statistical project we consider the Chew Bahir palaeolake to be a dynamical system consisting of interactions between its different components, such as the waterbody, the sediment beneath lake, and the organisms living within and around the lake. Recurrence is a common feature of such dynamical systems, with recurring patterns in the state of the system reflecting typical influences. Identifying and defining these influences contributes significantly to our understanding of the dynamics of the system. Different recurring changes in precipitation, evaporation, and wind speed in the Chew Bahir basin could result in similar (but not identical) conditions in the lake (e.g., depth and area of the lake, alkalinity and salinity of the lake water, species assemblages in the water body, and diagenesis in the sediments). Recurrence plots (RPs) are graphic displays of such recurring states within a system. Measures of complexity were subsequently introduced to complement the visual inspection of recurrence plots, and provide quantitative descriptions for use in recurrence quantification analysis (RQA). We present and discuss herein results from an RQA on the environmental record from six short (< 17 m) sediment cores collected during the CBDP, spanning the last 45 kyrs. The different types of variability and transitions in these records were classified to improve our understanding of the response of the biosphere to climate change, and especially the response of humans in the area.
KW  - Paleoclimate dynamics
KW  - Eastern Africa
KW  - Pleistocene
KW  - Holocene
KW  - Time-series analysis
KW  - Recurrence plot
Y1  - 2019
U6  - https://doi.org/10.1007/s00382-019-04641-3
SN  - 0930-7575
SN  - 1432-0894
VL  - 53
IS  - 5-6
SP  - 2557
EP  - 2572
PB  - Springer
CY  - New York
ER  - 
TY  - JOUR
A1  - Weber, Michael
A1  - Scholz, Denis
A1  - Schröder-Ritzrau, Andrea
A1  - Deininger, Michael
A1  - Spötl, Christoph
A1  - Lugli, Federico
A1  - Mertz-Kraus, Regina
A1  - Jochum, Klaus Peter
A1  - Fohlmeister, Jens Bernd
A1  - Stumpf, Cintia F.
A1  - Riechelmann, Dana F. C.
T1  - Evidence of warm and humid interstadials in central Europe during early MISSUE 3 revealed by a multi-proxy speleothem record
JF  - Quaternary science reviews : the international multidisciplinary research and review journal
N2  - Marine Isotope Stage 3 (MIS 3, 57-27 ka) was characterised by numerous rapid climate oscillations (i.e., Dansgaard-Oeschger (D/O-) events), which are reflected in various climate archives. So far, MIS 3 speleothem records from central Europe have mainly been restricted to caves located beneath temperate Alpine glaciers or close to the Atlantic Ocean. Thus, MIS 3 seemed to be too cold and dry to enable speleothem growth north of the Alps in central Europe. Here we present a new speleothem record from Bunker Cave, Germany, which shows two distinct growth phases from 52.0 (+0.8, -0.5) to 50.9 (+0.6, -1.3) ka and 473 (+1.0, -0.6) to 42.8 (+/- 0.9) ka, rejecting this hypothesis. These two growth phases potentially correspond to the two warmest and most humid phases in central Europe during MIS 3, which is confirmed by pollen data from the nearby Eifel. The hiatus separating the two phases is associated with Heinrich stadial 5 (HS 5), although the growth stop precedes the onset of HS 5. The first growth phase is characterised by a fast growth rate, and Mg concentrations and Sr isotope data suggest high infiltration and the presence of soil cover above the cave. The second growth phase was characterised by drier, but still favourable conditions for speleothem growth. During this phase, the delta C-13 values show a significant decrease associated with D/O-event 12. The timing of this shift is in agreement with other MIS 3 speleothem data from Europe and Greenland ice core data. (C) 2018 Elsevier Ltd. All rights reserved.
KW  - Speleothems
KW  - Pleistocene
KW  - Palaeoclimatology
KW  - Europe
KW  - Dansgaard-Oeschger event
KW  - Marine isotope stage 3
KW  - Bunker cave
KW  - Multi-proxy approach
KW  - U-Th series
Y1  - 2018
U6  - https://doi.org/10.1016/j.quascirev.2018.09.045
SN  - 0277-3791
VL  - 200
SP  - 276
EP  - 286
PB  - Elsevier
CY  - Oxford
ER  - 
TY  - JOUR
A1  - Wilting, A.
A1  - Patel, R.
A1  - Pfestorf, Hans
A1  - Kern, C.
A1  - Sultan, K.
A1  - Ario, A.
A1  - Penaloza, F.
A1  - Kramer-Schadt, S.
A1  - Radchuk, Viktoriia
A1  - Foerster, D. W.
A1  - Fickel, Jörns
T1  - Evolutionary history and conservation significance of the Javan leopard Panthera pardus melas
JF  - Journal of zoology : proceedings of the Zoological Society of London
N2  - The leopard Panthera pardus is widely distributed across Africa and Asia; however, there is a gap in its natural distribution in Southeast Asia, where it occurs on the mainland and on Java but not on the interjacent island of Sumatra. Several scenarios have been proposed to explain this distribution gap. Here, we complemented an existing dataset of 68 leopard mtDNA sequences from Africa and Asia with mtDNA sequences (NADH5+ ctrl, 724bp) from 19 Javan leopards, and hindcasted leopard distribution to the Pleistocene to gain further insights into the evolutionary history of the Javan leopard. Our data confirmed that Javan leopards are evolutionarily distinct from other Asian leopards, and that they have been present on Java since the Middle Pleistocene. Species distribution projections suggest that Java was likely colonized via a Malaya-Java land bridge that by-passed Sumatra, as suitable conditions for leopards during Pleistocene glacial periods were restricted to northern and western Sumatra. As fossil evidence supports the presence of leopards on Sumatra at the beginning of the Late Pleistocene, our projections are consistent with a scenario involving the extinction of leopards on Sumatra as a consequence of the Toba super volcanic eruption (similar to 74kya). The impact of this eruption was minor on Java, suggesting that leopards managed to survive here. Currently, only a few hundred leopards still live in the wild and only about 50 are managed in captivity. Therefore, this unique and distinctive subspecies requires urgent, concerted conservation efforts, integrating insitu and ex situ conservation management activities in a One Plan Approach to species conservation management.
KW  - biogeography
KW  - evolutionary history
KW  - Felidae
KW  - Southeast Asia
KW  - Toba eruption
KW  - One Plan Approach
KW  - Pleistocene
KW  - Javan leopard
Y1  - 2016
U6  - https://doi.org/10.1111/jzo.12348
SN  - 0952-8369
SN  - 1469-7998
VL  - 299
SP  - 239
EP  - 250
PB  - Wiley-Blackwell
CY  - Hoboken
ER  -