Results 91 to 100 of about 39,574 (242)

EUPollMap: the European atlas of contemporary pollen distribution maps derived from an integrated Kriging interpolation approach [PDF]

open access: yesEarth System Science Data
Modern and fossil pollen data are widely used in paleoenvironmental research to characterize past environmental changes in a given location. However, their discrete and discontinuous nature can limit the inferences that can be made from them.
F. Oriani   +4 more
doaj   +1 more source

Evolution and relationships of the conifer seed cone telemachus: Evidence from the triassic of antarctica [PDF]

open access: yes, 2010
The seed cone Telemachus is known from several Triassic localities in Gondwana. New specimens from two localities in Antarctica provide additional information about the type species, Telemachus elongatus, based on details of morphology and anatomy ...
Decombeix, Anne-Laure   +3 more
core   +3 more sources

The onset of grasses in the Amazon drainage basin, evidence from the fossil record [PDF]

open access: yes, 2020
Poaceae (the grass family) originated in the Cretaceous, but first dominate the palynological records of the Amazon drainage basin (ADB) in the Neogene (23 to 2.5 million years ago (Ma)).
Hoorn, Carina, Kirschner, Judith A.
core   +3 more sources

Tree growth response and adaptation to climate change and climate extremes: From canopy to stem

open access: yesJournal of Integrative Plant Biology, EarlyView.
This review synthesizes the responses and adaptations of tree growth, including canopy phenology, intra‐annual wood formation dynamics, and annual stem growth, to climate change and climate extremes. It highlights key knowledge gaps for future research to support sustainable forest management and enhance forest carbon storage under ongoing climate ...
Feiyu Yang   +8 more
wiley   +1 more source

Nest architecture of Oxaea austera (Andrenidae, Oxaeinae) and its significance for the interpretation of Uruguayan fossil bee cells [PDF]

open access: yes, 2014
Oxaea austera nests in hard, red lateritic soils with dense grass cover. Some characters of Oxaea austera nests conform to the known architecture of the oxaeine nests such as the long, vertical shaft and the radiating, horizontal tunnels connected to ...
Alcock   +19 more
core   +2 more sources

Microbial Endolithic Community at Meteor Crater

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Postimpact recovery and evolution in response to climate changes produced a modern ecosystem at Meteor Crater dominated by a grassland and woodland of piñon and juniper, which has been used to evaluate floral and megafaunal consequences of impact cratering during the Phanerozoic Eon of complex life.
David A. Kring, Charles S. Cockell
wiley   +1 more source

Abrupt climate changes of the last deglaciation detected in a Western Mediterranean forest record [PDF]

open access: yes, 2009
Abrupt changes in Western Mediterranean climate during the last deglaciation (20 to 6 cal ka BP) are detected in marine core MD95-2043 (Alboran Sea) through the investigation of high-resolution pollen data and pollen-based climate reconstructions by the ...
Dormoy, Isabelle   +3 more
core   +3 more sources

Haplotype‐Resolved Genome Assembly and Population Genomics Reveal Evolutionary History and Agronomic Traits of Mulberry

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Mulberry is a representative economic tree species valued for both poverty alleviation and medicinal use. To advance the understanding of mulberry genomics and demography, we assembled high‐quality haploid genomes of two widely cultivated mulberry varieties NS14 and QS1, and analysed 376 accessions from 12 countries, including 39 ancient trees
Zhifeng Wang   +19 more
wiley   +1 more source

SBP‐Box Transcription Factor JcSPL9 Regulates Both Seed Yield and Oil Content in the Biofuel Plant Jatropha curcas

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Jatropha curcas is a promising feedstock for biodiesel and bio‐jet fuels production; however, its seed yield is constrained by limited inflorescences. SPL9 is a member of the SBP‐box gene family that promotes the juvenile‐to‐adult phase transition.
Mingyong Tang   +4 more
wiley   +1 more source

Living and Fossil Pollen from Macquarie Island [PDF]

open access: yesNature, 1956
THE use of palynology to investigate the ancient floras of antarctic and subantarctic regions and to aid in explaining the present distribution of the living florula has been largely ignored. Auer1 made use of pollen analysis to describe the fluctuations of forest and steppe vegetation in Tierra del Fuego in postglacial time.
openaire   +1 more source

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