Results 21 to 30 of about 39,745 (236)

Variability within the 10-year pollen rain of a seasonal neotropical forest and its implications for paleoenvironmental and phenological research. [PDF]

open access: yesPLoS ONE, 2013
Tropical paleoecologists use a combination of mud-water interface and modern pollen rain samples (local samples of airborne pollen) to interpret compositional changes within fossil pollen records.
Derek S Haselhorst   +2 more
doaj   +1 more source

Teaching Paleontology [PDF]

open access: yes, 1995
This guide is designed to be used by teachers as an aid for teaching principles of fossils and past life to elementary school students. The activities and labs provided include topics such as fossilization, sedimentation, trace fossils, the importance of

core   +2 more sources

A fossil pollen dataset of China

open access: yesChinese Journal of Plant Ecology, 2023
Fossil pollen and spore records provide highly creditable proxy data to investigate the past environmental changes such as palaeovegetation and palaeoclimate. Pollen database promotes past environmental studies from local to regional and global scales and from qualitative to quantitative reconstructions.
ZHOU, Bo-Rui   +40 more
openaire   +2 more sources

Platinum Group Element Traces of CAMP Volcanism Associated With Low‐Latitude Environmental and Biological Disruptions

open access: yesGeophysical Monograph Series, Page 263-304., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jessica H. Whiteside   +3 more
wiley  

+1 more source

Eocene–early Oligocene climate and vegetation change in southern China: Evidence from the Maoming Basin [PDF]

open access: yes, 2017
Although the Eocene-Oligocene climate transition marks a critical point in the development of the ‘icehouse’ global climate of the present little is known about this important change in the terrestrial realm at low latitudes.
Aleksandrova, Galina N.   +8 more
core   +1 more source

Examining bias in pollen-based quantitative climate reconstructions induced by human impact on vegetation in China [PDF]

open access: yesClimate of the Past, 2017
Human impact is a well-known confounder in pollen-based quantitative climate reconstructions as most terrestrial ecosystems have been artificially affected to varying degrees.
W. Ding, Q. Xu, P. E. Tarasov
doaj   +1 more source

Reconstructing burnt area during the Holocene: an Iberian case study [PDF]

open access: yesClimate of the Past, 2022
Charcoal accumulated in lake, bog or other anoxic sediments through time has been used to document the geographical patterns in changes in fire regimes.
Y. Shen   +16 more
doaj   +1 more source

Past and present potential distribution of the Iberian Abies species: A phytogeographic approach using pollen data and species distribution models [PDF]

open access: yes, 2010
This is the accepted version of the following article: Alba-Sánchez, F., López-Sáez, J. A., Pando, B. B.-d., Linares, J. C., Nieto-Lugilde, D. and López-Merino, L.
Benito de Pando, B   +4 more
core   +1 more source

Pollen and spores from surface samples in the campos region of Uruguay and their paleoecological implications

open access: yesActa Botânica Brasílica, 2016
In this study we describe and illustrate pollen and spores that have been identified as significant in modern and fossil samples from the campos region of Uruguay.
Dominique Mourelle, Aldo R. Prieto
doaj   +1 more source

Influence of common palynological extraction treatments on ultraviolet absorbing compounds (UACs) in sub-fossil pollen and spores observed in FTIR spectra

open access: yesFrontiers in Ecology and Evolution, 2023
IntroductionBiological life, atmospheric circulation and the Earth’s climate may be influenced by UV-B radiation. In plants, Ultraviolet Absorbing Compounds (UACs) are an indicator of UV-B exposure, and the abundance of UACs in pollen and spores of ...
Tianyuan Wang   +4 more
doaj   +1 more source

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