Results 101 to 110 of about 10,034 (242)

La Secreción Cutánea, Instrumento Sistemático La Secreción Cutánea, Instrumento Sistemático

open access: yesCaldasia, 1973
The Author points out information lacking in morphological Systematics for evolutionary studies of amphibian taxa, relieving physiological and biochemical analysis as valuable tools of philogenetic interrelationships study.
Low Bobbie S.
doaj  

Functional and Morphological Variety in Trunk Muscles of Urodela

open access: yesJournal of Veterinary Medical Science, 2014
Trunk musculature in Urodela species varies by habitat. In this study, trunk musculature was examined in five species of adult salamanders representing three different habitats: aquatic species, Amphiuma tridactylum and Necturus maculosus; semi-aquatic species, Cynops pyrrhogaster; terrestrial species, Hynobius nigrescens and Ambystoma tigrinum.
OMURA, Ayano   +2 more
openaire   +3 more sources

The annual number of breeding adults and the effective population size of syntopic newts (Triturus cristatus, T-marmoratus) [PDF]

open access: yes, 2001
Pond-breeding amphibians are deme-structured organisms with a population genetic structure particularly susceptible to demographic threats. We estimated the effective number of breeding adults (N-b) and the effective population size (N-e) of the European
Arntzen, W.   +4 more
core   +1 more source

A methodological workflow for quantitative colouration and colour pattern comparison reveals taxonomic and habitat‐level differences in the polymorphic fire salamander (Salamandra salamandra)

open access: yesJournal of Zoology, Volume 324, Issue 1, Page 34-49, September 2024.
In this study, we use the urodele Salamandra salamandra as a study model to apply an analytical approach for extracting and quantifying colour proportions and patterns variation, using the recently developed R packages patternize and recolorize, to accurately describe and compare colour distribution at both taxonomic and habitat levels.
L. Alarcón‐Ríos   +2 more
wiley   +1 more source

Age determination by skeletochronology of the Japanese salamander Hynobius kimurae (Amphibia, Urodela) [PDF]

open access: yes, 1999
We investigated lines of arrested growth (LAG) of long bone tissues in a total of 157 salamanders of Hynobius kimurae from Tokyo and Kyoto, Japan. The number of LAGs did not differ between femurs, humeri, and toe phalanges. We found that the first LAG is
Matsui, Masafumi, Misawa, Yasuchika
core   +1 more source

Forecasting potential invaders to prevent future biological invasions worldwide

open access: yesGlobal Change Biology, Volume 30, Issue 7, July 2024.
We developed a reliable, robust and defensible tool that can identify attributes of invading alien species and predict which species worldwide, with no prior history of invasion, have the potential to become invasive. Showcasing our tool on amphibians and reptiles worldwide, we found 160 species are likely to be unintentionally transported and ...
Arman N. Pili   +14 more
wiley   +1 more source

Complete mitochondrial genome of the Korean crevice salamander (Karsenia koreana) (Amphibia, Urodela: Plethodontidae)

open access: yesMitochondrial DNA. Part B. Resources, 2019
The Korean crevice salamander, Karsenia koreana, is the only known plethodontid salamander in Asia. In this study, we provide the first report of this salamander’s complete mitochondrial genome.
Jaejin Park   +3 more
doaj   +1 more source

On the distribution of Bolitoglossa altamazonica and B. peruviana (Caudata: Plethodontidae) in the Peruvian Amazon with observations on their ecology and conservation

open access: yesNature Conservation Research: Заповедная наука, 2018
We report ecological observations of Bolitoglossa altamazonica and B. peruviana in the Peruvian Amazon with suggestions on their conservation. Two localities are provided for both species in one protected area, Allpahuyo-Mishana National Reserve and in ...
Axel Hernandez
doaj   +1 more source

Ambystoma barbouri [PDF]

open access: yes, 1996
Number of Pages: 4Integrative BiologyGeological ...
Kraus, Fred
core   +1 more source

Unleashing diversity through flexibility: The evolutionary journey of sex chromosomes in amphibians and reptiles

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 341, Issue 3, Page 230-241, April 1, 2024.
Sex determination systems have greatly diversified between amphibians and reptiles. In this review, we discuss the diversity of sex chromosomes in amphibians and reptiles resulted from comparative analyses of chromosome homology of sex chromosomes in amphibians and reptiles reported so far, using the genome of the chicken, which is thought to resemble ...
Yoshinobu Uno, Kazumi Matsubara
wiley   +1 more source

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