Results 11 to 20 of about 40,879 (216)

Vascular plants of east-central Baffin Island, Nunavut, Canada: an annotated checklist of a mid-Arctic flora [PDF]

PhytoKeys
Baffin Island in the eastern Canadian Arctic is the largest island in Canada and the fifth largest in the world. East-central Baffin Island, a spectacular mountainous area covering over 57,000 km2, with long fiords, deep U-shaped valleys, glaciers, and ...
Lynn J. Gillespie, Paul C. Sokoloff, Geoffrey A. Levin   +2 more
doaj   +3 more sources

Freshwater reservoir offsets on radiocarbon-dated dog bone from the headwaters of the St. Lawrence River, USA [PDF]

PeerJ, 2019
Isotopic analysis of dog (Canis lupus familiaris) bone recovered from archaeological sites as proxies for human bone is becoming common in North America. Chronological placement of the dogs is often determined through radiocarbon dating of dog bone.
John P. Hart, Robert S. Feranec, Timothy J. Abel, Jessica L. Vavrasek   +3 more
doaj   +2 more sources

SMEP (Science Museum Exhibition Platform) for Sharing and exchange system of natural history collection

Journal of Asia-Pacific Biodiversity, 2021
Here, we introduce the SMEP (Science Museum Exhibition Platform) system, which is aimed to construct a platform for sharing and exchanging the science museum exhibits and information for museum staff, focusing on natural history collections.
Da-Som Kim, Ji-Young Lee, Byung Sun Chun, Geon-Yeong Hwang, Woon Kee Paek, Bong-Kyu Byun   +5 more
doaj   +1 more source

The emerging vertebrate model species for neurophysiological studies is Danionella cerebrum, new species (Teleostei: Cyprinidae)

Scientific Reports, 2021
The four described species of Danionella are tiny, transparent fishes that mature at sizes between 10–15 mm, and represent some of the most extreme cases of vertebrate progenesis known to date. The miniature adult size and larval appearance of Danionella,
Ralf Britz, Kevin W. Conway, Lukas Rüber   +2 more
doaj   +1 more source

Micro-Computed Tomography Reveals a Remarkable Twin Intromittent Organ in Spiders – A Novelty for Arachnids With Direct Sperm Transfer

Frontiers in Ecology and Evolution, 2021
The modification of male pedipalps into secondary sexual intromittent organs is one of the hallmark characteristics of spiders, yet understanding the development and evolution of male genitalia across the order remains a challenging prospect. The embolus
Michael G. Rix, Michael G. Rix, Hannah M. Wood, Mark S. Harvey, Peter Michalik   +4 more
doaj   +1 more source

Population regulation in Gyrodactylus salaris – Atlantic salmon (Salmo salar L.) interactions: testing the paradigm

Parasites & Vectors, 2015
Background Gyrodactylus salaris is a directly transmitted ectoparasite that reproduces in situ on its fish host. Wild Norwegian (East Atlantic) salmon stocks are thought to be especially susceptible to the parasite due to lack of co-adaptation, contrary ...
Raúl Ramírez, Tor A. Bakke, Philip D. Harris   +2 more
doaj   +1 more source

Object Investigation of Industrial Heritage: The Forging and Metallurgy Shop in Taipei Railway Workshop

Applied Sciences, 2020
As a special plant for train maintenance in northern Taiwan, the Taipei Railway Workshop was founded in 1885 and moved in 2011, reflecting the changes in Taiwan’s history, transportation, and industrial technology.
Yu-Hsun Chen, Guan-Chen Chen, Ching-Tai Wu, Chi-Lin Lee, You-Rou Chen, Jun-Fu Huang, Kuo-Hung Hsiao, Jong-I Lin   +7 more
doaj   +1 more source

The complete mitochondrial genomes of two Japanese endemic Satyrinae butterflies, Neope goschkevitschii and Lethe sicelis (Lepidoptera, Nymphalidae)

Mitochondrial DNA. Part B. Resources, 2020
Neope goschkevitschii and Lethe sicelis are endemic Satyrinae butterflies in mainland Japan, which belongs to the Palearctic realm. In this study, we determined the mitochondrial genomes of these two species.
Nobuaki Nagata, Ikuko Tsujimura, Aya Sato   +2 more
doaj   +1 more source

Functional characterization of the Hyles euphorbiae hawkmoth transcriptome reveals strong expression of phorbol ester detoxification and seasonal cold hardiness genes

Frontiers in Zoology, 2018
Background The European spurge hawkmoth, Hyles euphorbiae (Lepidoptera, Sphingidae), has been intensively studied as a model organism for insect chemical ecology, cold hardiness and evolution of species delineation.
M. Benjamin Barth, Katja Buchwalder, Akito Y. Kawahara, Xin Zhou, Shanlin Liu, Nicolas Krezdorn, Björn Rotter, Ralf Horres, Anna K. Hundsdoerfer   +8 more
doaj   +1 more source

Morphological evolution in Hyles Hübner, 1819 hawkmoths (Lepidoptera, Sphingidae): reconstructing the ancestral Hyles habitus [PDF]

Nota Lepidopterologica, 2020
Molecular phylogenetic studies suggest that similar wing and body patterns in the hawkmoth genus Hyles Hübner, [1819] do not necessarily reflect a close phylogenetic relationship. To improve our understanding of morphological evolution in these organisms,
Anna K. Hundsdoerfer, Ian J. Kitching
doaj   +3 more sources