Results 31 to 40 of about 7,928 (227)

A Survey of Atmospheric Pollen and Spores in North-Western Nigeria

Notulae Scientia Biologicae, 2018
The incidence of airborne pollen occurring as aeroallergens of varied levels at different periods of the year has generated some public health concern globally. The present study was conducted in order to examine the monthly depositional rate of airborne
Olugbenga Shadrak ALEBIOSU, Olusola H. ADEKANMBI   +1 more
doaj   +1 more source

China's Beech Forests in the Pre-Quaternary [PDF]

Fossil Record, 1998
Fagus in China is never dominant in Late Cretaceous and Tertiary floras although it might reach its highest diversity in the Miocene. The genus Fagus was more widely distributed during the Palaeogene than in the Neogene.
L. Yu-Sheng, W. Wei-Ming, A. Momohara
doaj   +3 more sources

Palynology of Austin Outcrop [PDF]

, 2017
Palynology of Austin ...
P Dodsworth (6966329), Eldrett, James S, Steven Bergman (6966332), James S Eldrett (6964478), Wright, Milly, Minisini, Daniel, Dodsworth, P, Daniel Minisini (6960044), Bergman, Steven, Milly Wright (6966335)   +9 more
core   +1 more source

Conifer diversity in the Kungurian of Europe—Evidence from dwarf-shoot morphology [PDF]

, 2017
A major global change, the transition from an icehouse to a greenhouse world, took place during the Permian. In the equatorial Euramerican floral realm this resulted in stepwise changes from sub-humid climates in the early Cisuralian to semi-arid/arid ...
Looy, Cindy V., van Konijnenburg van Cittert, Johanna H. A., Kerp, Hans, van Konijnenburg-van Cittert, Johanna H.A., FORTE, GIUSEPPA, Kustatscher, Evelyn, Marine Palynology, Marine palynology and palaeoceanography   +7 more
core   +1 more source

Late Holocene riparian vegetation dynamics, environmental changes, and human impact in the Harapan forest of Sumatra, Indonesia

Frontiers in Ecology and Evolution, 2023
Riparian wetland ecosystems provide important ecological services but are also vulnerable to climate change and human activities. To understand the influence of natural factors (e.g.
Chung Hoai Nguyen, K. Anggi Hapsari, K. Anggi Hapsari, Asmadi Saad, Supiandi Sabiham, Hermann Behling   +5 more
doaj   +1 more source

Southern Ocean warming and Wilkes Land ice sheet retreat during the mid-Miocene

Nature Communications, 2018
Ocean heat is important in forcing ice sheet retreat, yet past ocean temperature data from proximal ice sheet locations are sparse. Here, the authors present temperature reconstructions from the Wilkes Land subglacial basin during the mid-Miocene, and ...
Francesca Sangiorgi, Peter K. Bijl, Sandra Passchier, Ulrich Salzmann, Stefan Schouten, Robert McKay, Rosemary D. Cody, Jörg Pross, Tina van de Flierdt, Steven M. Bohaty, Richard Levy, Trevor Williams, Carlota Escutia, Henk Brinkhuis   +13 more
doaj   +1 more source

High latitude hydrological changes during the Eocene Thermal Maximum 2 [PDF]

, 2014
The Eocene hyperthermals, including the Paleocene-Eocene Thermal Maximum (PETM) and Eocene Thermal Maximum 2 (ETM2), represent extreme global warming events ~56 and 54 million years ago associated with rapid increases in atmospheric greenhouse gas ...
Sluijs, Appy, Pagani, Mark, Krishnan, Srinath, Huber, Matthew, Marine Palynology, Marine palynology and palaeoceanography   +5 more
core   +1 more source

Feature Extraction and Machine Learning for the Classification of Brazilian Savannah Pollen Grains.

PLoS ONE, 2016
The classification of pollen species and types is an important task in many areas like forensic palynology, archaeological palynology and melissopalynology.
Ariadne Barbosa Gonçalves, Junior Silva Souza, Gercina Gonçalves da Silva, Marney Pascoli Cereda, Arnildo Pott, Marco Hiroshi Naka, Hemerson Pistori   +6 more
doaj   +1 more source

Análisis palinológico preliminar de una turbera holocena del Apakará-tepui (Macizo de Chimantá, Guayana venezolana)

Collectanea Botanica, 2011
Análisis palinológico preliminar de una turbera holocena del Apakará-tepui (Macizo de Chimantá, Guayana venezolana).- Este artículo presenta los resultados palinológicos preliminares, a escala de milenios, de una secuencia holocena, desde 8.0 cal kyr BP ...
V. Rull, E. Montoya, S. Nogué, O. Huber
doaj   +1 more source

Farming in the shadows of Rome: A multi‐proxy palaeoenvironmental record from Loch Clunie—Perthshire

Journal of Quaternary Science, EarlyView.
ABSTRACT Roman impacts on local society is a subject of international significance. Loch Clunie, Perthshire, lies only 5.4 km from Inchtuthil, the only Roman legionary fortress in Scotland, and contains two crannogs and a probable lakeside hillfort. Despite this proximity and the likelihood of local–Roman interaction, these sites remain unexcavated ...
Samantha E. Jones, Maarten Blaauw, Fraser Hunter, Olalla López‐Costas, Antonio Martínez Cortizas, Tim M. Mighall, Gordon Noble   +6 more
wiley   +1 more source