Results 161 to 170 of about 603,388 (189)

Foraging Plasticity Favours Adaptation to New Habitats in Fire Salamanders

Animal Behaviour, 2013
Predators often show strong plasticity of optimal foraging strategies. A major difference in foraging strategies occurs between sit-and-wait and active predators. Models predict that the efficiency of these strategies is affected by environmental conditions, active predators being favoured when prey are scarce and their detection difficult.
Raoul Manenti, Mathieu Denoël, Gentile Francesco Ficetola   +2 more
exaly   +3 more sources

Directional selectivities of visual afferents to the pretectal neuropil in the fire salamander

Brain Research, 1987
Single-unit recordings from visual afferents in the pretectal neuropil of Salamandra salamandra were performed to characterize the properties of direction specific units which are probably involved in the optokinetic reflex. It was shown that afferents from the contralateral eye were more sharply tuned than those from the ipsilateral eye.
M, Sperl, G, Manteuffel
openaire   +2 more sources

Color morphs of the fire salamander are discriminated at night by conspecifics and predators

Journal of Zoology, 2023
AbstractThe coexistence of multiple discrete color phenotypes (i.e. color polymorphism) has been studied in many diurnal species where environmental light allows most visual systems to chromatically discriminate color morphs. However, there is a large gap in our understanding of the discrimination thresholds and the function color polymorphisms play at
P. Aguilar, G. Pérez i de Lanuza, H. Martínez‐Gil, U. Dajčman, T. Simčič, C. Pinho, A. Žagar, R. Megía‐Palma   +7 more
openaire   +1 more source

Variability of Seasonal Trophic Niche in Two Sympatric Salamanders: Italian Cave Salamanders and Fire Salamanders

Herpetologica
The trophic niche is one of the most important ecological traits for any species, providing information about trophic position in the food web, habitat preferences, and interspecific interactions. In this study, we describe the autumn diet of two sympatric species of salamander from central Italy—Italian Cave Salamanders (Speleomantes italicus) and ...
FABIO CIANFERONI, MILOS DI GREGORIO, CLAUDIA CORTI, ENRICO LUNGHI   +3 more
openaire   +2 more sources

The Conspicuous Postmetamorphic Coloration of Fire Salamanders, but Not Their Toxicity, Is Affected by Larval Background Albedo

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, 2019
AbstractExperimental work in the early 20th century showed that background albedo experienced by larvae of the fire salamander (Salamandra salamandra) induce a durable morphological modification of the postmetamorphic color pattern, which needed confirmation due to the controversies regarding Paul Kammerer's experiments.
Sebastian Steinfartz, Stefan Schulz, Tim Lüddecke   +2 more
exaly   +3 more sources

Variability of Alkaloids in the Skin Secretion of the European Fire Salamander (Salamandra Salamadra Terrestris)

Toxicon, 2005
The two major alkaloids, samandarine and samandarone, were identified in the skin secretion of individual specimens from two populations of the European fire salamander (Salamandra salamandra terrestris) by gas chromatography/mass spectrometry. High intraspecific variability in the ratio of both alkaloids was observed, but also in individual specimens ...
Dietrich Mebs
exaly   +3 more sources

Long-term consequences of early nutritional conditions on the behaviour and growth of fire salamanders

Amphibia-Reptilia, 2016
Early developmental conditions can have a strong influence on the life history. Fire salamanders represent an interesting system due to their biphasic life cycle consisting of an aquatic larval stage and a subsequent terrestrial stage. The environment experienced as larvae affects growth, age at metamorphosis and behaviour.
Krause, E. Tobias, Caspers, Barbara
openaire   +1 more source

Isolation and Identification of Alkaloids from Poisons of Fire Salamanders (Salamandra salamandra)

Journal of Natural Products, 2019
Fire salamanders ( Salamandra salamandra) are conspicuously colored amphibians secreting a skin poison that contains unique steroid alkaloids such as samandarine (1) and samadarone (2), exhibiting toxic as well as antimicrobial activities. Because of their antipredatory and anti-infectious functions, alkaloids from Salamandra poison are of interest ...
Janosch Knepper, Tim Lüddecke, Kathleen Preißler, Miguel Vences, Stefan Schulz   +4 more
openaire   +2 more sources

Breeding and rearing the European fire salamander

International Zoo Yearbook, 1986
P. J. WISNIEWSKI, L. M. PAULL
openaire   +1 more source

The diet of two sympatric salamanders, the Fire salamander and the Italian cave salamander

2022
Lunghi E., Cianferoni F., Biaggini M., Corti C   +3 more
openaire   +1 more source