Results 1 to 10 of about 25,630 (224)

Sunflower Pollen and Bumble Bee Health: Mechanisms, Modifiers and Trade‐Offs [PDF]

open access: yesEcology and Evolution, Volume 16, Issue 2, February 2026.
This review integrates mechanistic evidence and field foraging data to examine how Asteraceae pollen affects Crithidia bombi infection in bumble bees. While laboratory studies show strong antiparasitic effects, field exposure is often limited, revealing a mismatch between efficacy and ecological relevance.
Richard Odemer
wiley   +2 more sources

Relative pollen productivity estimates from India: A step towards quantitative reconstruction of past plant abundance

open access: yesEcosphere
Pollen records and models of pollen–vegetation relationships are required to reconstruct past plant abundances during the Holocene to answer specific questions on climate history, human impact, biodiversity, and their interactions. An important parameter
R. Navya   +5 more
doaj   +2 more sources

Late Eocene–early Miocene evolution of the southern Australian subtropical front: a marine palynological approach [PDF]

open access: yesJournal of Micropalaeontology, 2021
Improvements in our capability to reconstruct ancient surface-ocean conditions based on organic-walled dinoflagellate cyst (dinocyst) assemblages from the Southern Ocean provide an opportunity to better establish past position, strength and oceanography ...
F. S. Hoem   +6 more
doaj   +1 more source

Research Progress on Forensic Palynology and Its Application in Forensic Science [PDF]

open access: yesFayixue Zazhi, 2020
Forensic palynology is to apply palynology to the field of forensic science, using pollen and spores to solve issues in juridical practice, such as civil and criminal issues.
CHEN Yun-xia, SHI Hong-fei
doaj   +1 more source

Understanding perspectives of current palynology: using science with practical discourse

open access: yesBotan‪ical Sciences, 2023
Background: Palynological studies have contributed with topics closely linked to sustainability. However, there are still few scientific reviews that have discussed the relevance of practical applications in current palynology and its perspectives as a ...
Tonatiuh Jiménez-Zamora   +4 more
doaj   +1 more source

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  

+2 more sources

Hiddenocysta matsuokae gen. nov. et sp. nov. from the Holocene of Vancouver Island, British Columbia, Canada [PDF]

open access: yes, 2021
A new dinoflagellate cyst genus and species are described here as Hiddenocysta gen. nov. and Hiddenocysta matsuokae sp. nov. from Holocene sediments in a core from the west coast of Vancouver Island (British Columbia, Canada).
Bogus, Kara   +5 more
core   +2 more sources

Paleoceanography and ice sheet variability offshore Wilkes Land, Antarctica – Part 3: Insights from Oligocene–Miocene TEX86-based sea surface temperature reconstructions [PDF]

open access: yesClimate of the Past, 2018
The volume of the Antarctic continental ice sheet(s) varied substantially during the Oligocene and Miocene ( ∼ 34–5 Ma) from smaller to substantially larger than today, both on million-year and on orbital timescales.
J. D. Hartman   +9 more
doaj   +1 more source

Better molecular preservation of organic matter in an oxic than in a sulfidic depositional environment: evidence from Thalassiphora pelagica (Dinoflagellata, Eocene) cysts [PDF]

open access: yesBiogeosciences, 2020
Anoxic sediments, as compared to oxic settings, encompass a much higher proportion of relatively labile and thus more reactive organic matter, naturally giving rise to structural changes of the organic molecules themselves, as well as cross-linking ...
G. J. M. Versteegh   +4 more
doaj   +1 more source

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