Results 81 to 90 of about 15,148 (249)
, 2022 Produced settlement data are compared to period averages of (a) Ko-1 Mg/Ca and (b) δ18O from Gölhisar and Ko-1. (c) Full paleoclimate data (metadata of records in S2 Table) with warm/cold intervals highlighted: Crisis Years Cold Event (CYCE), Roman ...
Matthew J. Jacobson (11770685) +4 more
core +1 more source
Scientific Reports, 2020 Carbonate cave deposits (speleothems) have been used widely for paleoclimate reconstructions; however, few studies have examined the utility of other speleothem-forming minerals for this purpose.
Fernando Gázquez +5 more
doaj +1 more source
Retaining Models of Human Evolution After Repeated Falsifications—Why?
Natural Sciences, Volume 6, Issue 3, July 2026.Two 19th century paradigms of human evolution emerged: Humans are subdivided into isolated populations in an evolutionary tree, versus human populations interbreed (gene flow) with no isolates. The tree model has been rejected whenever tested since the 1970's, whereas gene flow consistently fits.
Alan R. Templeton
wiley +1 more source
Deep‐Time Paleoclimate Proxies
AGU Advances, 2020 Pre‐Cenozoic climate (>66 million years ago) has been reconstructed with climate sensitive sedimentary deposits. However, sedimentary records are inherently local and can be affected by topography and oceanic and atmospheric currents.
Francis A. Macdonald
doaj +1 more source
Dynamical structure in paleoclimate data
, 1995 Deterministic chaos in dynamical systems offers a new paradigm for understanding irregular fluctuations. The theory of chaotic dynamical systems includes methods that can test whether any given set of time series data, such as paleoclimate proxy data ...
Stewart, H. Bruce
core
The Problem with High Elevation Pollen Paleoclimate Proxies
, 2015 The Florissant Fossil Beds National Monument is dated to latest Eocene, making it very important to paleoclimate models. We used the Coexistence Approach (CA) to determine the mean annual temperature (MAT) using both paleobotanical macrofossils and ...
Herb Meyer (797252) +1 more
core +1 more source
, 2021 The end Permian extinction was the most severe mass extinction in the history of metazoan life on Earth. However, re-examined floristic records and new radiometric ages from Gondwanan successions suggest a nuanced terrestrial ecosystem response to end ...
Aidan Dalhseid +13 more
core +1 more source
PLANTS, PEOPLE, PLANET, Volume 8, Issue 4, Page 1116-1131, July 2026.Large palynological collections have been built over decades and contain vital information. However, they are often difficult to access and use effectively. What is the point of having such collections if they are not fully utilizable? To solve this problem, we digitized the Smithsonian palynological collection using both light and confocal microscopy.
Carlos Jaramillo +37 more
wiley +1 more source
Zoologica Scripta, Volume 55, Issue 4, Page 615-638, July 2026.ABSTRACT Understanding insect responses to global climate change involves identifying strategies used during past climate oscillations. Phylogeography offers a powerful framework to unravel how historical climatic and geological events have shaped the spatial genetic patterns of species, providing critical insights into evolutionary processes, whereas ...
Jody H. Voges +12 more
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract The interannual El Niño‐Southern Oscillation (ENSO) triggers extreme climate events worldwide. Geochemical proxies in coral skeletons from the eastern equatorial Pacific (EP) track ENSO conditions, constraining its long‐term variance and response to forcing.
C. J. Tripp +5 more
wiley +1 more source