Results 51 to 60 of about 61,856 (160)

Consistent Buzz‐Pollination Posture Suggests Division of Labour Between Dimorphic Stamens in Bredia hirsuta (Melastomataceae) on Okinawa‐Jima Island, Japan

open access: yesPlant Species Biology, Volume 41, Issue 5, September 2026.
Bredia hirsuta, a small pollen flower, is buzz‐pollinated by Amegilla dulcifera in a posture separating ventral gripping from dorsal stigma contact. The bee grips short‐stamen ventrally, while the stigma contacts the dorsal abdomen near long‐stamen anther tips.
Tetsuya Fukano, Tetsuo Denda
wiley   +1 more source

Low heat flow from young oceanic lithosphere at the Middle America Trench off Mexico

open access: yes, 2005
Seismic reflection profiles across the Middle America Trench at 20°N show a high amplitude bottom simulating reflector interpreted as marking a phase transition between methane hydrate and free gas in the pore space of both accreted and trench sediments.
Bartolome, R.   +7 more
core   +1 more source

Geodetic Evidence of Shallow Slow‐Slip Phenomena Beneath the Southern Ryukyu Forearc

open access: yesGeophysical Research Letters
While slow slip events (SSEs) are recognized as a ubiquitous phenomenon in subduction zones, accurately tracking the spatiotemporal distribution of shallow SSEs remains challenging.
Chi‐Hsien Tang   +7 more
doaj   +1 more source

Sexual Dimorphism in Vertebral Number: Developmental Implications Inferred From Vertebral and Body Proportions

open access: yesEvolution &Development, Volume 28, Issue 3, September 2026.
The developmental basis of sexual dimorphism in vertebral number remains poorly understood. We show pronounced dimorphism in Oryzias setnai, linked to position‐dependent variation in vertebral length, providing a model for linking somitogenesis dynamics to body plan evolution. ABSTRACT Segmentation is a fundamental feature of vertebrate body plans, and
Kazunori Yamahira   +4 more
wiley   +1 more source

Contrasting Dispersal Histories Shape Distinct Evolutionary Trajectories Between Malesian and Pantropical Talipariti (Malvaceae)

open access: yesEcology and Evolution, Volume 16, Issue 8, August 2026.
Talipariti (Malvaceae) comprises two lineages with contrasting geographic ranges across Malesia: a pantropical sea hibiscus group and a Papuan group restricted to New Guinea and adjacent islands. Using phylogenomics, divergence‐time estimation, and quantitative biogeographical modelling applied to herbarium‐derived genomic data, we demonstrate that the
Fernando Vélez‐Esperilla   +3 more
wiley   +1 more source

New source model for the 1771 Meiwa tsunami along the southern Ryukyu Trench inferred from high-resolution tsunami calculation

open access: yesProgress in Earth and Planetary Science
The 1771 Meiwa tsunami which struck the southern Ryukyu Islands (Sakishima Islands) had greater than 22 m run-up height, leaving about 12,000 casualties in its wake.
Koki Nakata   +2 more
doaj   +1 more source

Comparative Morphology and Homology of the Hyoid Apparatus and Associated Muscles in Beloniform Fishes (Teleostei: Atherinomorpha)

open access: yesJournal of Morphology, Volume 287, Issue 8, August 2026.
Homology of the branchiostegals rays in atherinomorph fishes demonstrated by the position of the rays relative to the interhyoideus muscle. In beloniform outgroups, above, the two groups of branchiostegal rays are separated by the interhyoideus. In beloniform fishes, below, only one group of branchiostegal rays is present.
Daniel N. Lumbantobing, Lynne R. Parenti
wiley   +1 more source

South Ilan Plain High-Resolution 3-D S-Wave Velocity from Ambient Noise Tomography

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2016
The Ilan Plain in northeastern Taiwan is located at a pivotal point where the Ryukyu trench subduction zone, the northern Taiwan crustal stretching zone, and the ongoing arc-continent collision zone converge.
Kai-Xun Chen   +5 more
doaj   +1 more source

Millennial paleotsunami history at Minna Island, southern Ryukyu Islands, Japan

open access: yesProgress in Earth and Planetary Science, 2020
Huge tsunami waves have repeatedly bombarded the southern end of the Ryukyu Islands (Miyako and Yaeyama Islands, southwestern Japan) at several-hundred-year intervals.
Ryosuke Fujita   +3 more
doaj   +1 more source

Event Deposits Recorded Over the Past 800 kyr in IODP Hole U1433A (South China Sea): Implications of a Revised Methodology for Chronology and Paleoclimate Reconstruction

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract Instantaneous event deposits such as turbidites, debrites, and slumps are common and frequently occur in marginal seas. These instantaneous deposits represent seconds to days in duration, and can therefore significantly impact age‐depth models and interpretation of paleoclimate history based on thick sedimentary sequences recovered in deep ...
Xunpeng Li   +8 more
wiley   +1 more source

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