3D model related to the publication: A Puma concolor (Carnivora: Felidae) in the Middle-Late Holocene landscapes of the Brazilian Northeast (Bahia): submerged cave deposits and stable isotopes

MorphoMuseuM ◽  
2021 ◽  
Vol 7 (3) ◽  
pp. e156
Author(s):  
Leonardo Souza Lobo ◽  
Leandro de Oliveira Salles ◽  
Carlos Rodrigues Moraes Neto
Keyword(s):  
Stable Isotopes ◽  
Late Holocene ◽  
3D Model ◽  
Puma Concolor ◽  
Cave Deposits ◽  
Brazilian Northeast

A Puma concolor (Carnivora: Felidae) in the Middle-Late Holocene landscapes of the Brazilian Northeast (Bahia): submerged cave deposits and stable isotopes

Geobios ◽  
2020 ◽  
Vol 62 ◽  
pp. 61-78
Author(s):  
Leandro de Oliveira Salles ◽  
Fernando Araújo Perini ◽  
Carlos Rodrigues de Moraes Neto ◽  
Fernando Lencastre Sicuro ◽  
Joaquin Arroyo-Cabrales ◽  
...  
Keyword(s):  
Stable Isotopes ◽  
Late Holocene ◽  
Puma Concolor ◽  
Cave Deposits ◽  
Brazilian Northeast

scholarly journals Stable isotopes demonstrate the importance of freshwater fisheries in Late Holocene native Californian diets in the California Delta

2021 ◽  
Vol 38 ◽  
pp. 103044
Author(s):  
Jelmer Eerkens ◽  
Lauren Canale ◽  
Eric Bartelink ◽  
Chris Canzonieri ◽  
Jason Miszaniec ◽  
...  
Keyword(s):  
Stable Isotopes ◽  
Late Holocene

scholarly journals Three distinct Holocene intervals of stalagmite deposition and nondeposition revealed in NW Madagascar, and their paleoclimate implications

2017 ◽  
Vol 13 (12) ◽  
pp. 1771-1790 ◽  
Author(s):  
Ny Riavo Gilbertinie Voarintsoa ◽  
Loren Bruce Railsback ◽  
George Albert Brook ◽  
Lixin Wang ◽  
Gayatri Kathayat ◽  
...  
Keyword(s):  
Stable Isotopes ◽  
High Resolution ◽  
Late Holocene ◽  
Intertropical Convergence Zone ◽  
Convergence Zone ◽  
High Resolution Data ◽  
The Holocene ◽  
Middle Holocene ◽  
Resolution Data

Abstract. Petrographic features, mineralogy, and stable isotopes from two stalagmites, ANJB-2 and MAJ-5, respectively from Anjohibe and Anjokipoty caves, allow distinction of three intervals of the Holocene in NW Madagascar. The Malagasy early Holocene (between ca. 9.8 and 7.8 ka) and late Holocene (after ca. 1.6 ka) intervals (MEHI and MLHI, respectively) record evidence of stalagmite deposition. The Malagasy middle Holocene interval (MMHI, between ca. 7.8 and 1.6 ka) is marked by a depositional hiatus of ca. 6500 years. Deposition of these stalagmites indicates that the two caves were sufficiently supplied with water to allow stalagmite formation. This suggests that the MEHI and MLHI intervals may have been comparatively wet in NW Madagascar. In contrast, the long-term depositional hiatus during the MMHI implies it was relatively drier than the MEHI and the MLHI. The alternating wet–dry–wet conditions during the Holocene may have been linked to the long-term migrations of the Intertropical Convergence Zone (ITCZ). When the ITCZ's mean position is farther south, NW Madagascar experiences wetter conditions, such as during the MEHI and MLHI, and when it moves north, NW Madagascar climate becomes drier, such as during the MMHI. A similar wet–dry–wet succession during the Holocene has been reported in neighboring locations, such as southeastern Africa. Beyond these three subdivisions, the records also suggest wet conditions around the cold 8.2 ka event, suggesting a causal relationship. However, additional Southern Hemisphere high-resolution data will be needed to confirm this.

Stable isotopes in Sphagnum fuscum peat as late-Holocene climate proxies in northeastern European Russia

The Holocene ◽  
2013 ◽  
Vol 23 (10) ◽  
pp. 1381-1390 ◽  
Author(s):  
Päivi Kaislahti Tillman ◽  
Steffen Holzkämper ◽  
Thorbjørn Joest Andersen ◽  
Gustaf Hugelius ◽  
Peter Kuhry ◽  
...  
Keyword(s):  
Stable Isotopes ◽  
Late Holocene ◽  
European Russia ◽  
Holocene Climate ◽  
Sphagnum Fuscum ◽  
Climate Proxies

Mid to Late Holocene palaeoenvironment of Lake Eastern Juyanze (north-western China) based on ostracods and stable isotopes

Geobios ◽  
2002 ◽  
Vol 35 (1) ◽  
pp. 99-110 ◽  
Author(s):  
Steffen Mischke ◽  
Dirk Fuchs ◽  
Frank Riedel ◽  
Michael E Schudack
Keyword(s):  
Stable Isotopes ◽  
Late Holocene ◽  
Western China ◽  
North Western

Testing ecological and environmental changes during the last 6000 years: a multiproxy approach based on the bivalve Tawera gayi from southern South America

2011 ◽  
Vol 91 (7) ◽  
pp. 1413-1427 ◽  
Author(s):  
Sandra Gordillo ◽  
Julieta Martinelli ◽  
Javiera Cárdenas ◽  
M. Sol Bayer
Keyword(s):  
Stable Isotopes ◽  
South America ◽  
Late Holocene ◽  
Environmental Changes ◽  
Growth Dynamics ◽  
Tierra Del Fuego ◽  
Physical Factors ◽  
Geological Time ◽  
Southern South America ◽  
Ecological Variability

This paper evaluates if the bivalve Tawera gayi from southern South America represents an opportunity to test ecological variability and environmental changes during the last 6000 years in southern South America. For this purpose, we analyse both modern and fossil (mid-to-late Holocene) T. gayi shells from Tierra del Fuego using different techniques, including taphonomy, stable isotopes, cathodoluminiscence (CL) and linear morphometrics. Taphonomic analysis shows that differences between modern and fossil shells appear best related to local variations of physical factors such as current speed, wave action and freshwater input along the non-uniform Beagle Channel coast. However, slight changes of hydraulic energy regimes throughout the Holocene cannot be ruled out. The analysis of stable isotopes on T. gayi shells indicates a mixing of oceanic waters with freshwater from precipitation, river runoff and glacier meltwater during the mid-to-late Holocene. The high depletion of δ18O at ~4400 years before present would be associated with a period of warmer temperatures, the so-called Hypsithermal. Under CL modern and fossil T. gayi shells show a well defined pattern related to the growth dynamics of the shell, which can lead to a better understanding of its biology, adding details to further palaeoenvironmental analysis. Finally, conventional metrics shows that fossil T. gayi shells are smaller and shorter than modern shells. These differences could be related to Holocene environmental changes, but here are best explained on the basis of a predator–prey relationship. This study shows that T. gayi may be a good candidate for looking at evidences of environmental changes in southern South America, and multi-proxy data are necessary to better understand the driving mechanisms of ecological variability and changes over short geological time intervals of few thousands of years.

scholarly journals A tough travesía: Mobility constraints among late Holocene Patagonian hunter-gatherers through oxygen stable isotopes in enamel and water sources

2020 ◽  
Vol 33 ◽  
pp. 102484
Author(s):  
Alejandro Serna ◽  
Domingo C. Salazar-García ◽  
Luciano O. Valenzuela ◽  
Luciano Prates
Keyword(s):  
Stable Isotopes ◽  
Late Holocene ◽  
Water Sources ◽  
Hunter Gatherers ◽  
Oxygen Stable Isotopes

USING STABLE ISOTOPES OF ORGANIC MATTER TO EXAMINE THE LATE HOLOCENE ENVIRONMENTAL HISTORY OF ROSIER CREEK SALT MARSH, NORTHERN NECK OF VIRGINIA

2016 ◽  
Author(s):  
Christopher J. Killam ◽  
◽  
J. Bradford Hubeny ◽  
Neil E. Tibert
Keyword(s):  
Stable Isotopes ◽  
Organic Matter ◽  
Salt Marsh ◽  
Environmental History ◽  
Late Holocene ◽  
History Of
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