Results 41 to 50 of about 42,164 (194)

Ecuadorian Glass Frogs: Current state of knowledge, new research trends and conservation [PDF]

, 2016
Ecuador has the biggest number of amphibian species per unit of area in the world (427 species in 276,840 km 2 ). Glass frogs (Centrolenidae), with 30 species, constitute 7.06 % of the Ecuadorian anurans. However, the current state of knowledge of this family in Ecuador is still very basic. Several
Cisneros-Heredia, Diego F, McDiarmid, Roy W.   +1 more
openaire   +1 more source

Influence of environmental factors and body condition on the post-oviposition behavior in the emerald glass frog Espadarana prosoblepon (Centrolenidae)

PeerJ, 2022
In species with parental care behaviors, parents may adjust the intensity and duration of their care if fluctuation in factors such as environmental variables or body condition affects offspring survival. In the face of environmental changes, many egg-laying species remain with their clutch for extended periods if this behavioral adjustment provides ...
Goyes Vallejos, Johana, Hernández-Figueroa, Abner D.   +1 more
openaire   +3 more sources

Capillary Electrophoresis With Amperometric Detection for Neurotransmitter Analysis: Principles, Electrode Materials, Methodologies, and Applications

ELECTROPHORESIS, EarlyView.
This review provides a comprehensive summary of monoamine neurotransmitter analysis by capillary electrophoresis with amperometric detection. Fundamental principles of amperometric detection, electrode positioning strategies, and approaches to high‐voltage decoupling are described, followed by a critical comparison of electrode materials, selection of ...
Petr Kubáň, Jiří Volánek, Nguyen Thi Thu Trang, Tran Dai Lam   +3 more
wiley   +1 more source

Frontiers of Bright CEP‐Stable Broadband Infrared Sources

Laser &Photonics Reviews, EarlyView.
Bright CEP‐stable broadband infrared sources push the limits of ultrafast science by delivering exceptional brightness alongside few‐cycle durations and multi‐octave spectral coverage. This review highlights emerging architectures and nonlinear conversion strategies that scale power while preserving phase stability.
Ugaitz Elu, Jens Biegert
wiley   +1 more source

Characterization of Pax3 and Sox10 Transgenic Xenopus Laevis Embryos as Tools to Study Neural Crest Development [PDF]

, 2018
The neural crest is a multipotent population of cells that originates a variety of cell types. Many animal models are used to study neural crest induction, migration and differentiation, with amphibians and birds being the most widely used systems.
Alkobtawi, Mansour, Barriga, Elias H., Kerney, Ryan R., Mayor, Roberto, Monsoro-Burq, Anne-Helene, Moreno, Mauricio, Ray, Heather, Saint-Jeannet, Jean-Pierre   +7 more
core   +2 more sources

In Situ Acoustic Monitoring of Focused Femtosecond Pulse Duration in Air

Laser &Photonics Reviews, EarlyView.
Air‐breakdown acoustics at the laser focus is used to determine femtosecond pulse duration with a simple USB microphone. By chirp‐tuning and compressing 1030 nm pulses from 241 to 50 fs, the acoustic amplitude scales inversely proportional to the square root of the pulse duration, enabling in situ readout over 50 fs–5 ps—crucial for precise pulse ...
Indrė Meškėlaitė, Hsin‐Hui Huang, Haoran Mu, Nguyen Hoai An Le, Tomas Katkus, Edvinas Aleksandravičius, Gabrielius Kontenis, Domas Paipulas, Saulius Juodkazis, Darius Gailevičius   +9 more
wiley   +1 more source

Low reproductive skew despite high male-biased operational sex ratio in a glass frog with paternal care [PDF]

BMC Evolutionary Biology, 2015
AbstractBackgroundReproductive skew, the uneven distribution of reproductive success among individuals, is a common feature of many animal populations. Several scenarios have been proposed to favour either high or low levels of reproductive skew. Particularly a male-biased operational sex ratio and the asynchronous arrival of females is expected to ...
Mangold, Alexandra, Trenkwalder, Katharina, Ringler, Max, Hödl, Walter, Ringler, Eva   +4 more
openaire   +2 more sources

Reconstructing Early Human Subsistence in Near Oceania: New Insights From Matenkupkum and Matenbek

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT The colonization of New Ireland ~44–40,000 years ago represents the earliest evidence of human occupation in Near Oceania. Yet, the precise impacts of climatic changes on subsistence strategies during the Late Pleistocene, Last Glacial Maximum, and Holocene remain poorly understood.
Joëlle den Toom, Glenn Summerhayes, Anne Ford, Karen Greig   +3 more
wiley   +1 more source

Description of a Novel Procedure to Aid in Emergence of Larval La Palma Glass Frogs (Hyalinobatrachium valerioi) to Improve Survival Rate with Implications for Captive Management and Conservation

Journal of Zoological and Botanical Gardens
New, more efficient ways to accomplish objectives are key to improving the ability of zoological and conservation organizations to protect the animals they study and care for.
Chris Buttermore, Luis Daniel Navarro Gutierrez, Luis Sigler   +2 more
doaj   +1 more source

Ecology of the Squirrel Treefrog (Hyla squirella) in Southern Arkansas [PDF]

, 2014
We conducted an ecological study of the Squirrel Treefrog, Hyla squirella near El Dorado, Union Co., Arkansas from May-Oct. 2013. We extended the known distribution by ~2 km and documented the first breeding occurring on 28 May and the first ...
Bursey, C. R., Connior, M. B., Fulmer, T., McAllister, C. T., Trauth, S. E.   +4 more
core   +3 more sources