Results 121 to 130 of about 37,171 (241)

Mitogenomic Characterization and Phylogenetic Expansion of Tribe Coccinellini (Coleoptera: Coccinellidae)

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
This study presents the complete mitochondrial genomes of nine ladybird species from the tribe Coccinellini and compares them with 58 previously published mitogenomes. Phylogenetic analyses confirm the taxonomic placement of these species within Coccinellini.
Xin‐Yi Li   +5 more
wiley   +1 more source

A Plant‐Diversity Dark Spot at the Intersection of Three Biodiversity Hotspots: Environmental Drivers of Brassicaceae Richness in Türkiye

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
Türkiye lies at the intersection of three global biodiversity hotspots yet is recognised as a global plant‐diversity "dark spot." Using > 15,000 georeferenced herbarium records and spatial regression models, we examined the environmental drivers of Brassicaceae species and endemic richness across the country. Species richness increased with topographic
İlayda Dumlupınar   +2 more
wiley   +1 more source

Conserved Gene Order and Adaptive Evolution in Mitochondrial Genomes of Calappa Crabs: Insights Into Ecological Specialization and Phylogenetic Utility

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
This study presents the first complete mitochondrial genomes of five Calappa species, filling a critical gap in genomic resources for the family Calappidae. Our analyses confirm the monophyly of Calappidae, detect positive selection in key energy metabolism genes (ATP6, ND2, ND5), and reveal conserved gene arrangement patterns.
Zhengfei Wang   +7 more
wiley   +1 more source

Dinosaur extinction can explain continental facies shifts at the Cretaceous-Paleogene boundary

open access: yesCommunications Earth & Environment
Continental Cretaceous-Paleogene boundary sections are best known from North America, where they invariably exhibit a marked shift in sedimentary facies at or very near the boundary level.
Lucas N. Weaver   +7 more
doaj   +1 more source

Fluid evolution of fracture veins of Paleogene Funing Formation in well HY1 in Subei Basin and implications for shale oil filling

open access: yesShiyou shiyan dizhi
A significant breakthrough has been made in the exploration and development of shale oil in the Subei Basin. Cores from well HY1 in the Gaoyou Sag of Subei Basin indicate the presence of well-developed natural fractures within the organic-rich shale of ...
Chao LI   +5 more
doaj   +1 more source

The dual role of fracturing and elevation on the development of the weathering profile in mafic landscapes of the Andean tropics

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 3, March 2026.
Eighteen boreholes in Colombia's Tropical Andes reveal elevation‐controlled Critical Zone architecture. Four‐layer weathering profiles with thick saprolite (≤48 m) form at high elevations (>1,100 m) where dense fracturing enhances permeability. Low‐elevation boreholes lack saprolite despite high fracture density, demonstrating fracturing's dual role as
Helbert Garcia‐Delgado   +2 more
wiley   +1 more source

New Zealand Geological Timescale 2025

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
New Zealand Geological Timescale 2025 (NZGT 2025) is the first comprehensive update and revision of the New Zealand Geological Timescale in a decade. The criteria used to establish age ranges of New Zealand Stages within the NZGT have been reviewed, calibrated, and revised where required against the 2023/04 International Chronostratigraphic Chart and ...
Christopher D. Clowes   +13 more
wiley   +1 more source

Seismic Stratigraphy of Eocene–Recent Mixed Depositional Systems on the SE New Zealand Continental Margin, Great South Basin

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
The continental margin of SE New Zealand is strongly influenced by the Southland Current and associated water masses. This new seismic stratigraphic study of the margin has revealed a range of depositional mounds and erosional channels that document the close interaction of turbidity and bottom currents in shaping the margin from the Mid‐Eocene onward.
Onyekachi N. Ibezim   +3 more
wiley   +1 more source

El Paleogen

open access: yes, 1993
Structural setting, stratigraphic relationships, paleontolgical character and sedimentology of Paleogene deposits cropping out in Cabrera Islands are described. They correspond to sandy to silty limestones building up a transgressive-regressive cicle that correlates with s'Envestida Calcarenites Fm. defined in Mallorca Is.
openaire   +1 more source

Eocene Tectonic Change in the South Pacific Caused Exhumation of the Transantarctic Mountains in Northern Victoria Land, Antarctica

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
Apatite fission‐track and (U‐Th)/He data indicate rapid exhumation of northern Victoria Land at 40–30 Ma, correlating with opening of Adare Trough at 43–28 Ma. Exhumation was greatest close to the Ross Sea, consistent with other regions of the Transantarctic Mountains.
Rupert Sutherland   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy