Results 21 to 30 of about 17,780 (229)

Cross-Life Stage Effects of Aquatic Larval Density and Terrestrial Moisture on Growth and Corticosterone in the Spotted Salamander

open access: yesDiversity, 2018
For organisms with complex life cycles, conditions experienced during early life stages may constrain later growth and survival. Conversely, compensatory mechanisms may attenuate negative effects from early life stages.
Julie F. Charbonnier   +5 more
doaj   +1 more source

Bioaccumulation of the pesticide imidacloprid in stream organisms and sublethal effects on salamanders

open access: yesGlobal Ecology and Conservation, 2020
Neonicotinoids are one of the most widely used classes of insecticides in the world. The neonicotinoid imidacloprid is commonly applied to hemlock (Tsuga spp.) stands in eastern North America to reduce tree mortality from infestations of the invasive ...
Sara M. Crayton   +7 more
doaj   +1 more source

The Right Light: Tiger Salamander Capture Rates and Spectral Sensitivity

open access: yesWildlife Society Bulletin, 2020
Knowledge of population dynamics is critical for species of conservation concern so wildlife researchers need to take advantage of biases in animals' behaviors that could help them monitor populations.
Eric B. Liebgold, Karen L. Carleton
doaj   +1 more source

Disentangling Exploitative and Interference Competition on Forest Dwelling Salamanders

open access: yesAnimals, 2023
Exploitative competition and interference competition differ in the way access to resources is modulated by a competitor. Exploitative competition implies resource depletion and usually produces spatial segregation, while interference competition is ...
Giacomo Rosa   +2 more
doaj   +1 more source

Heart regeneration in the salamander relies on macrophage-mediated control of fibroblast activation and the extracellular landscape

open access: yesnpj Regenerative Medicine, 2017
Macrophages necessary for heart regeneration Heart regeneration in salamanders is dependent on the activation of immune cells. James Godwin of The Jackson Laboratory and MDI Biological Laboratory in the US and colleagues depleted all major organs of a ...
J. W. Godwin   +3 more
doaj   +1 more source

Study of Natural Longlife Juvenility and Tissue Regeneration in Caudate Amphibians and Potential Application of Resulting Data in Biomedicine

open access: yesJournal of Developmental Biology, 2021
The review considers the molecular, cellular, organismal, and ontogenetic properties of Urodela that exhibit the highest regenerative abilities among tetrapods. The genome specifics and the expression of genes associated with cell plasticity are analyzed.
Eleonora N. Grigoryan
doaj   +1 more source

Variation in Articular Cartilage Thickness Among Extant Salamanders and Implications for Limb Function in Stem Tetrapods

open access: yesFrontiers in Ecology and Evolution, 2021
The size and shape of articular cartilage in the limbs of extant vertebrates are highly variable, yet they are critical for understanding joint and limb function in an evolutionary context. For example, inferences about unpreserved articular cartilage in
Julia L. Molnar
doaj   +1 more source

Microfluidic Engineering of Chitosan‐Coated Nanoemulsions for Controlled Release and Stability in Space Pharmaceutics

open access: yesAdvanced Materials Technologies, EarlyView.
Microfluidic engineering enables the fabrication of chitosan‐coated, melatonin‐loaded nanoemulsions with controlled release and enhanced physicochemical stability for space pharmaceutics. Interfacial biopolymer coating modulates droplet behavior under accelerated thermal stress and simulated microgravity.
Modupe Adebowale   +3 more
wiley   +1 more source

Soft Robotic Snake with Tunable Undulatory Gait for Efficient Underwater Locomotion

open access: yesAdvanced Robotics Research, EarlyView.
This study designs an underwater soft snake robot using 3D‐printed soft actuators, controlled by specific signals to generate sinusoidal undulation. Results show a positive correlation between speed and swing amplitude, with optimal performance at 2/3π phase offset, PLA tail, 1.2 voltage growth rate, and 6s undulation period achieving a maximum speed ...
Huichen Ma, Junjie Zhou, Raye Yeow
wiley   +1 more source

All‐in‐One Underwater Quality Evaluation Metamaterial With Mechanical Robustness, Sound Attenuation, and Diffuse Reflection

open access: yesAdvanced Science, EarlyView.
In this work, a bioinspired all‐in‐one underwater quality evaluation metamaterial, combining sound attenuation, diffuse reflection, and mechanical robustness, is proposed based on jumping spider locomotion and human skeletal biomechanics. Meanwhile, a CNN‑driven quality evaluation framework is established for theoretically dimension‐reduced ...
Hongze Li   +8 more
wiley   +1 more source

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