Results 51 to 60 of about 1,503 (158)

Rapid decreases in relative testes mass among monogamous birds but not in other vertebrates [PDF]

open access: yes, 2019
Larger testes produce more sperm and therefore improve reproductive success in the face of sperm competition. Adaptation to social mating systems with relatively high and low sperm competition are therefore likely to have driven changes in relative ...
Baker, Joanna   +4 more
core   +2 more sources

Integrated analysis of transcriptome and metabolome data reveals insights for molecular mechanisms in overwintering Tibetan frogs, Nanorana parkeri

open access: yesFrontiers in Physiology, 2023
Nanorana parkeri (Anura, Dicroglossidae) is a unique frog living at high altitude on the Tibetan plateau where they must endure a long winter dormancy at low temperatures without feeding.
Yonggang Niu   +5 more
doaj   +1 more source

Amphibians and Reptiles of Luzon Island, Philippines: the Herpetofauna of Pantabangan-Carranglan Watershed, Nueva Ecija Province, Caraballo Mountain Range [PDF]

open access: yes, 2018
We present detailed species accounts for fifty-nine (59) species of amphibians and reptiles (17 frogs, 14 skinks, 3 agamids, 6 gekkonid lizards, 2 varanids, and 17 snakes) from Pantabangan-Carranglan Watershed, which lies within the Caraballo Mountain ...
Juan Carlos T. GONZALEZ   +3 more
core   +1 more source

Three New Ranidae Mitogenomes and the Evolution of Mitochondrial Gene Rearrangements among Ranidae Species [PDF]

open access: yes, 2018
Various types of gene rearrangements have been discovered in the mitogenoes of the frog family Ranidae. In this study, we determined the complete mitogenome sequence of three Rana frogs.
Biao LI   +5 more
core   +1 more source

First record of Euphlyctis kalasgramensis (Anura: Dicroglossidae) from Punjab, Pakistan

open access: yesMitochondrial DNA. Part B. Resources, 2020
The present study documented the first record of Euphlyctis kalasgramensis from Punjab, Pakistan. The specimens were collected during field visits from June through August 2018. Various morphometric measurements of E.
Waqas Ali   +5 more
doaj   +1 more source

Species Dicroglossidae (Amphibia) Pada Zona Pemanfaatan Tnks Di Wilayah Solok Selatan [PDF]

open access: yes, 2016
Amphibia merupakan jenis komoditi ekspor yang cukup besar, karena Indonesia mengekspor katak hingga ribuan ton tiap tahunnya. Katak-katak yang diekspor adalah jenis katak berbadan besar yang diperoleh dari pembudidayaan dan ditangkap langsung dari ...
wati, M. (Meliya)
core  

Transcriptomic analysis reveals the hepatic response mechanisms of the Chinese spiny frog (Quasipaa spinosa) to Citrobacter freundii infection

open access: yesJournal of the World Aquaculture Society, Volume 57, Issue 3, June 2026.
Abstract To elucidate the pathogen and host response mechanisms underlying mass mortality in Quasipaa spinosa, dominant bacteria were isolated from diseased individuals and identified as Citrobacter freundii by morphological, physiological, and biochemical characterization, 16S rRNA sequencing, and phylogenetic analysis.
Yanhong Li   +7 more
wiley   +1 more source

Biofilms: Novel strategies based on antimicrobial peptides [PDF]

open access: yes, 2019
The problem of drug resistance is very worrying and ever increasing. Resistance is due not only to the reckless use of antibiotics but also to the fact that pathogens are able to adapt to different conditions and develop self-defense mechanisms such as ...
Carotenuto, R.   +5 more
core   +1 more source

Mitochondrial Phylogenomics and Genome Evolution in Anura: Insights From Structure and Gene Order Rearrangements

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
By analyzing 277 anuran mitochondrial genomes, this study reconstructs a robust phylogeny for frogs and toads, tracing their origins to the Triassic and major radiations to the Cretaceous‐Neogene. The research identifies 58 distinct gene arrangement patterns, providing a novel evolutionary framework.
Jiaoying He   +8 more
wiley   +1 more source

Amfibi Dan Reptil Karst Gunung Sewu Zona Batur Agung, Gunung Kidul, Daerah Istimewa YOGYAKARTA [PDF]

open access: yes, 2013
An inventory study of amphibians and reptiles from Karst Zone Batur Agung Gunung Kidul, Yogyakarta was carried out for first time. Exploration was conducted in July-August 2007, May-June 2008 and April 2009 at four districts of Patuk, Playen, Ngawen and ...
Qurniawan, T. F. (Tony)
core  

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