127 results match your criteria: "The Kagoshima University Museum; 1-21-30 Korimoto; Kagoshima 890-0065; Japan. motomura@kaum.kagoshima-u.ac.jp.[Affiliation]"

Article Synopsis
  • New diagnostic features of the species have been identified through re-examination of its morphology, including specific details about its fin rays and ridges.
  • The species typically has 15 or 16 pectoral-fin rays and notable structures like suborbital ridges and interorbital ridges.
  • Its known range has expanded to include several Pacific and Southeast Asian regions, adding to previously reported locations like Australia and Japan.
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A revision of the Carebara pygmaea (Emery, 1887) species group (Hymenoptera: Formicidae) in Thailand.

Zootaxa

July 2024

Office of Natural Science Research; National Science Museum; 39; Moo 3; Khlong 5; Khlong Luang; Pathum Thani; 12120 Thailand.

The Carebara pygmaea (Emery, 1887) species group in Thailand is reviewed. Among them, five species are recognized, including two newly described species, Carebara adisaki Wimolsuthikul & Jaitrong, sp. nov.

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Article Synopsis
  • The study examines 18 and 23 specimens of two little-known anchovy species, Stolephorus grandis and Stolephorus waitei, focusing on their morphology and distribution in the Sahul Shelf coastal region.
  • Researchers analyzed the mitochondrial cytochrome c oxidase subunit I (COI) gene, revealing a significant genetic divergence between the two species, with a mean genetic distance over 10%.
  • The findings indicate that Stolephorus waitei, S. grandis, and another species, Stolephorus nelsoni, form a monophyletic group unique to the Sahul Shelf, with additional discussion on the evolutionary significance of specific dorsal markings in these anchovies.
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Paired coral Sr/Ca and δO records reveal increasing ENSO influence on Malaysian Borneo's hydroclimate.

Sci Total Environ

December 2024

University of Leicester, 1 University Road, LE1 7RH Leicester, United Kingdom; Curtin Malaysia Research Institute, Curtin University Malaysia, Miri 98009, Malaysia; Molecular and Life Sciences, Curtin University, Bentley, WA 6102, Australia.

The El Niño Southern Oscillation (ENSO) is a worldwide climate phenomenon impacting temperatures and precipitation regimes across the globe. Previous studies have shown this climate phenomenon to influence Malaysian Borneo's hydroclimate. In the context of a changing climate and increasingly strong extreme ENSO events, understanding the influence of ENSO on this region, and its evolution through time, is essential to better constrain the future impacts it will have on the Maritime Continent's hydroclimate.

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Article Synopsis
  • Orchids play a vital role in the horticulture industry, and mycorrhizal fungi enhance their growth and disease resistance.
  • A study was conducted on the 'Stardust Firebird' orchid cultivar from three nurseries to investigate mycorrhizal colonization and the fungi involved.
  • Results showed that mature orchids had higher fungal colonization, revealing a diverse range of beneficial fungi, particularly from the Tulasnellaceae family, which improved seed germination and plant growth.
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The family Thismiaceae, known as "fairy lanterns" for their urn- or bell-shaped flowers with basally fused tepals, consists of non-photosynthetic flowering monocots mainly in tropical regions, extending into subtropical and temperate areas. Here, we propose a new mycoheterotrophic genus, Relictithismia Suetsugu & Tagane (Thismiaceae), with its monotypic species Relictithismia kimotsukiensis Suetsugu, Yas.Nakam.

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Luciogobius griseus n. sp., belonging to the Luciogobius platycephalus complex, is described on the basis of 40 specimens from the Nansei Islands, southwestern Japan (subtropical area).

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Consistent patterns of common species across tropical tree communities.

Nature

January 2024

Laboratory of Human Ecology, Instituto Venezolano de Investigaciones Científicas (IVIC), Caracas, Venezuela.

Trees structure the Earth's most biodiverse ecosystem, tropical forests. The vast number of tree species presents a formidable challenge to understanding these forests, including their response to environmental change, as very little is known about most tropical tree species. A focus on the common species may circumvent this challenge.

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Article Synopsis
  • The study examines the evolution of mammalian molars, highlighting that tribosphenic molars evolved from single-cusped reptilian teeth through the addition of cusps.
  • It investigates molar development in the house shrew to understand how the timing and order of enamel knot formation mirrors the evolutionary history of tooth cusp development in mammals.
  • The findings suggest a strong connection between ontogeny (development) and phylogeny (evolution) of molars, indicating that variations in developmental timing were critical for transforming tooth morphology over time.
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Vestimentiferan tube worms (Annelida: Siboglinidae) were discovered in a hydrothermal field at a depth of 195 m in the crater of the submarine volcano Omuro Dashi in the Izu-Ogasawara Arc. Based on the nucleotide sequences of the mitochondrial cytochrome oxidase subunit I () gene in individuals sampled in 2022, they were identified as Miura, Tsukahara & Hashimoto, 1997. STRUCTURE analysis and discriminant analysis of principal components (DAPC) based on 14 microsatellite markers showed a large genetic deviation of the population of Omuro Dashi from those of Kagoshima Bay and the north Mariana Arc (the Nikko and Daikoku Seamounts), whereas the population of Omuro Dashi did not show significant genetic deviation from that of the Nikko Seamount based on the gene.

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Japan has 16 native species of the genus Tratt. (Asparagaceae). A recent study on based on field surveys and molecular phylogenetic analyses resulted in the discovery of six unknown taxa in Kochi Prefecture, Shikoku Island, southwestern Japan.

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 (Perciformes, Opistognathidae): a new jawfish from southern Japan.

Zookeys

September 2023

National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba, Ibaraki 305-0005, Japan National Museum of Nature and Science Tsukuba Japan.

(Perciformes: Opistognathidae) is described on the basis of three specimens (17.3-30.6 mm in standard length) collected from the Osumi and Ryukyu islands, southern Japan in depths of 35-57 m.

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Intentional cranial modification has a long history, being a ubiquitous practice in many cultures around the world for millennia. The crania excavated at the Hirota site on Tanegashima Island, Kagoshima Prefecture, Japan, has been previously noted to have a marked tendency toward a short head and a flattened occipital bone, which has been suggested to be the result of artificial cranial deformation. However, whether this deformation was intentional or caused by unintentional habits remains unclear.

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Article Synopsis
  • Orchidaceae, a family of orchids, is highly diverse in tree canopies and constitutes 68% of vascular epiphytes.
  • Differences in mycorrhizal communities among epiphytic orchids help reduce competition for fungi and support species diversity through niche partitioning.
  • The study highlights that mycorrhizal specificity varies significantly among three epiphytic orchids in Japan, affecting their seed germination and suggesting that physiological differences, rather than environmental factors, play a key role in mycorrhizal community composition.
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The subgenus Campomyrma Wheeler, 1911 of the genus Polyrhachis Smith, 1758 in Thailand and Laos is reviewed. Four species are recognized, of which two are described and illustrated as new to science based on the worker and dealate queen under the names Polyrhachis quadrispinosa Jaitrong & Noon-anant, sp. nov.

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We performed germination tests on seeds from five orchids (, var. , var. , , and ) using one and two isolates.

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The Polyrhachis (Myrmatopa) flavicornis species group in Thailand is reviewed. Four species are recognized, of which one species closely related to Polyrhachis constructor Smith, 1857 is described and illustrated as new to science based on the worker caste under the name Polyrhachis longipilosa sp. nov.

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A new anchovy sp. nov., is described based on 30 specimens collected from Van Diemen Gulf, Northern Territory, Australia.

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In contrast to a great diversity in insects in terrestrial and freshwater ecosystems, few known species have adapted to inhabit marine environments. In this study, we surveyed insects associated with halophytic plants of (Amaranthaceae) distributed in intertidal zones, in northern Kyushu, Japan. On four Japanese native species of , we found insects belonging to five orders and 18 species.

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Tagane & S. Fujii, from the Kimotsuki Mountains in the Ohsumi Peninsula, southern Japan, is described and illustrated. It is morphologically similar to in having three-petaloid calyx lobes in marginal flowers, but is distinguished by the larger stamen number, and longer styles and seeds.

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Proxy reconstructions suggest that mid-Holocene East African temperatures were warmer than today between 8 and 5 ka BP, but climate models cannot replicate this warming. Precessional forcing caused a shift of maximum insolation from boreal spring to fall in the mid-Holocene, which may have favored intense warming at the start of the warm season. Here, we use three Porites corals from Kenya that represent time windows from 6.

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(Matsuda, R. (1952). , (1): 19-21), one of the dominant pests in major tea production areas in Asia, currently is known to occur in Japan, Vietnam, and China, and severely threatens tea production, quality, and international trade.

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