Results 91 to 100 of about 316,683 (354)

Modeling the dynamics of glacial cycles [PDF]

open access: yes, 2017
This article is concerned with the dynamics of glacial cycles observed in the geological record of the Pleistocene Epoch. It focuses on a conceptual model proposed by Maasch and Saltzman [J. Geophys. Res.,95, D2 (1990), pp.
A Khibnik   +41 more
core   +2 more sources

The extension of the taxon cycle model to island plants: insights from the Canarian vascular flora

open access: yesBiological Reviews, EarlyView.
ABSTRACT Taxon cycle models describe eco‐evolutionary patterns of lineage colonization, diversification, and decline across archipelagos, inferring an important role for competition amongst ecologically similar taxa in driving concurrent niche changes.
José María Fernández‐Palacios   +2 more
wiley   +1 more source

Occurrence of Shorea Roxburgh ex C. F. Gaertner (Dipterocarpaceae) in the Neogene Siwalik forests of eastern Himalaya and its biogeography during the Cenozoic of Southeast Asia [PDF]

open access: yes, 2016
We report the occurrence of two leaf impressions and one leaf compression along with one winged fruit and two fruiting calyx lobes, resembling those of Shorea Roxburgh ex C. F.
Bera, Subir   +3 more
core   +1 more source

Non‐stationary forest responses to hotter droughts: a temporal perspective considering the role of past legacies

open access: yesEcography, EarlyView.
Global change is altering forests worldwide, with multiple consequences for ecosystem functioning. Temporal changes in climate, and extreme, compounded weather events like hotter droughts are affecting the demography, composition and function of forests, leading to a highly uncertain future.
Xavier Serra‐Maluquer   +3 more
wiley   +1 more source

Virtual Cranial Reconstruction of the Endemic Gigantic Dormouse 'Leithia melitensis' (Rodentia, Gliridae) from Poggio Schinaldo, Sicily

open access: yesOpen Quaternary, 2020
The endemic dormouse 'Leithia melitensis' from the Pleistocene of Sicily is considered an insular giant, whose body size is exceptionally large in comparison to that of any extant dormouse species. However, knowledge of the skull morphology of this giant
Jesse J. Hennekam   +4 more
doaj   +1 more source

Tracing the origins and evolution of nymphalid butterflies (Lepidoptera) in the Atlantic Forest

open access: yesEcography, EarlyView.
Understanding the relative roles of diversification and dispersal is key to explaining large‐scale biogeographical patterns. Although both processes are known to shape biodiversity, their relative contributions remain understudied for many organisms. Here, we examine how these processes have jointly contributed to the exceptional diversity and endemism
Mar Repullés   +7 more
wiley   +1 more source

Replacement of Ores Recorded by Textures and Chemical Compositions of Sphalerite: An Example From the Furutobe Kuroko Deposit, Akita, Japan

open access: yesGeological Journal, EarlyView.
Coupled dissolution‐reprecipitation of early formed Cd‐, Fe‐, Ag‐ and Sb‐poor sphalerite through interaction with high‐temperature and high‐sulphur fugacity Cu‐rich fluids, responsible for the formation of the yellow ores, resulted in the formation of Cd‐, Fe‐, Ag‐ and Sb‐rich, heavily chalcopyrite‐diseased sphalerite and enrichment of critical metals ...
Manuel Nopeia   +4 more
wiley   +1 more source

Late Quaternary fossil vertebrates of the Broken River karst area, northern Queensland, Australia. In Papers in Honour of Ken Aplin, ed. Julien Louys, Sue O’Connor, and Kristofer M. Helgen

open access: yesRecords of the Australian Museum, 2020
Two new fossil deposits from caves of the Broken River area, northeast Queensland, provide the first regional records of vertebrate species turnover and extinction through the late Quaternary.
Gilbert J. Price   +7 more
doaj   +1 more source

POSISI STRATIGRAFI DAN TEKNOLOGI ALAT SERPIH SANGIRAN

open access: yesBerkala Arkeologi, 1986
Persoalan alat paleolitik dan manusia purba, masih merupakan persoalan menarik dalam hakekat sejarah perkembangan manusia. Keduanya tidak dapat dipisahkan kaitannya selama Kala Plestosen, yaitu suatu periode kehidupan antara dua juta hingga 10.000 tahun ...
Harry Widianto
doaj   +1 more source

Early evidence of stone tool use in bone working activities at Qesem Cave, Israel [PDF]

open access: yes, 2016
For a long while, the controversy surrounding several bone tools coming from pre-Upper Palaeolithic contexts favoured the view of Homo sapiens as the only species of the genus Homo capable of modifying animal bones into specialised tools.
Barkai, Ran   +8 more
core   +2 more sources

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