Results 81 to 90 of about 66,624 (345)

Symbiont 'bleaching' in planktic foraminifera during the Middle Eocene Climatic Optimum [PDF]

, 2013
Many genera of modern planktic foraminifera are adapted to nutrient-poor (oligotrophic) surface waters by hosting photosynthetic symbionts, but it is unknown how they will respond to future changes in ocean temperature and acidity.
Edgar, K.M., Wilson, P.A., Bohaty, S.M., Sexton, P.F., Bohaty, S. M., Edgar, K. M., Sexton, P. F., Norris, R. D., Edgar, K. M.; id_orcid, Edgar, Kirsty M., Wilson, P. A., Norris, R.D., Gibbs, S.J., Gibbs, S. J.   +13 more
core   +1 more source

Biogeography and diversification patterns in the Irano‐Turanian biodiversity hotspots inferred from a molecular phylogeny of the subendemic Iris subgenus Scorpiris (Iridaceae)

Nordic Journal of Botany, EarlyView.
The Irano‐Turanian Floristic Region harbors a rich flora, but our understanding of the development of this diversity is limited by a lack of data on phylogenetic relationships and biogeographic patterns of endemic and more widespread plants. Hypotheses of in situ diversification versus allopatric diversification were tested using Iris subgen. Scorpiris,
Mona Salimbahrami, Hojjatollah Saeidi, Ali Bagheri, Carol A. Wilson, Gerald M. Schneeweiss   +4 more
wiley   +1 more source

Biogenic siliceous accumulation in Early Paleogene marine basins of Western Siberia: Factors and stages

Литосфера, 2017
Factors and stages of biogenic siliceous accumulation rocks in the Transuralian region and Western Siberiain during Early Cenozoic. Analysis, systematization, generalization of lithological and paleontological data on the basis of geological survey and ...
Pavel V. Smirnov, Alexandr O. Konstantinov   +1 more
doaj   +1 more source

Long-term potentiation in the Eocene [PDF]

Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences, 2003
Abstract The first ten years of long-term potentiation (LTP) research are reviewed. Surprisingly, given the intensity of current interest, the discovery paper did not trigger a wave of follow-on experiments. Despite this, the initial work laid out what ultimately became standard questions and paradigms.
openaire   +2 more sources

Eocene-Oligocene benthic foraminifera of the Celebes Sea

, 1991
Deep-water agglutinated foraminifers were examined from reddish brown claystones comprising lithologic Unit 4 of Ocean Drilling Program Holes 767B and 767C.
Michael A Kaminski (6958625), Huang, Zehui, Zehui Huang (7915769), Kaminski, Michael Anthony   +3 more
core   +1 more source

Using dendroclimatic analysis of exotic deciduous conifers in an arboretum to document tree growth in response to climate change, Northeast Ohio, USA

PLANTS, PEOPLE, PLANET, EarlyView.
Rising temperatures and wetter conditions in the Midcontinent of North America are influencing climate responses in trees. Dendroclimatological analyses of four exotic deciduous conifer species from Secrest Arboretum, Northeast Ohio help identify past, present and future climate‐tree interactions.
Gregory Wiles, Nicholas Wiesenberg, Srushti Chaudari, Wenshuo Zhao, Mazvita Chikomo, Benjamin Gaglioti, Meagen Pollock   +6 more
wiley   +1 more source

The behavior of elements in the process of alteration of andesite - basalt to bentonite in Tashtab Mountain, Khur, northeastern Isfahan province

Journal of Economic Geology, 2012
Tashtab Mountain is located 25 km from the city of Khur in northeastern Isfahan province. Several bentonite mines formed in this area as a result of the Eocene volcanic alteration. These mines are classified as the Khur bentonite horizon.
Forough Malek Mahmoudi, Mahmoud Khalili
doaj   +1 more source

The utility of deep-water agglutinated Foraminiferal acmes for correlating Eocene to Oligocene abyssal sediments in the North Atlantic and Western Tethys

, 2005
Quantitative analysis of Deep-water Agglutinated Foraminifera (DWAF) assemblages from key ODP sites in the North Atlantic reveal the presence of stratigraphically-significant abundance maxima, that may be useful for correlating sedimentary sequences ...
Kaminski, M.A.
core  

The shared benefits of fallen fruits: A novel mechanism stabilizing a nursery pollination mutualism between Sambucus and kateretid beetles

PLANTS, PEOPLE, PLANET, EarlyView.
Understanding how cooperative interactions remain stable matters for biodiversity because many plants rely on specialist insects that can also impose reproductive costs. We studied the interaction between Sambucus sieboldiana and seed‐consuming Heterhelus beetles through detailed field observations and pollination experiments.
Suzu Kawashima, Hidehito Okada, Sadatomo Hisamatsu, Kenji Suetsugu   +3 more
wiley   +1 more source

Eocene-Oligocene glaciation on a high central Tibetan Plateau

, 2023
The nature of glaciation (bipolar vs. unipolar) during the Eocene-Oligocene transition (EOT) remains unresolved. Here, we report the occurrence of frost marks, ice-rafted debris (IRD), and glendonites from the Upper Eocene to Lower Oligocene Niubao ...
Gaojie Li (5433911), Chihua Wu (7236299), Julian Murton (4460746), Juan Pedro Rodriguez Lopez (14021652), Xin Jin (108988), Zhiqiang Shi (1971433), Qiushuang Fan (16300457), Haisheng Yi (8484429), Guoqing Xia (314803), Junling Pei (13246968), Ahmed Mansour (1421014)   +10 more
core   +1 more source