Specific information about these species is available on the web and includes the following suggestions:Web sites are likely to be particularly useful sources of information about exotic species, which are not typically included in publications that focus on the species commonly used in laboratories.Observation of the animals’ color and behavior (activity, feeding, and production of feces) provides a basis for adjusting temperature. It is only a mild exaggeration to say that a tadpole is a feeding machine with just enough locomotor capacity to move it from one food source to the next. It furthers the University's objective of excellence in research, scholarship, and education by publishing worldwide,This PDF is available to Subscribers Only.For full access to this pdf, sign in to an existing account, or purchase an annual subscription.Search for other works by this author on:Global amphibian declines: A problem in applied ecology,Dietary manipulation of the calcium content of feed crickets,Body wiping behaviors associated with cutaneous lipids in hylid tree frogs of Florida,Nutrient composition of selected whole invertebrates,UV-B induced skin darkening in larval salamanders does not prevent sublethal effects on growth,Feeding captive insectivorous animals: Nutritional aspects of insects as food,Nutrition Advisory Group Handbook, Fact Sheet 003,Amphibian defenses against ultraviolet-B radiation,Ambient UV-B radiation causes deformities in amphibian embryos,Exchange of respiratory gases, ions, and water in amphibious and aquatic amphibians,Environmental Physiology of the Amphibians,Thermal control of aggregation behavior in tadpoles,A preliminary review of the thermal requirements of amphibians,Amphibian temperature regulation studies in the field and laboratory,Antipredator adaptations of salamanders: evolution and convergence among terrestrial species,Plant, Animal, and Microbial Adaptations to Terrestrial Environment,Comparative effects of ambient ultraviolet-B radiation on two sympatric species of Australian frogs,Facility design and associated services for the study of amphibians,Reproduction and larval rearing of amphibians,The effect of temperature and hydration state on aerobic metabolism of canyon treefrogs (,The Experimental Animal in Biomedical Research,Care, Husbandry and Well-Being: An Overview of Species,Effect of temperature on evaporative water loss of the Australian tree frogs,Extraocular phototransduc-tion and circadian timing systems in vertebrates,Water loss and an extraepidermal lipid barrier in the Australian treefrog,Convergent evolution of chemical defense in poison frogs and arthropod prey between Madagascar and the Neotropics.Distribution, habitats and life history variation in the tiger salamander,Captive management and breeding of dendrobatid and Neotropical hylid frogs at the National Aquarium in Baltimore,Captive Management and Conservation of Amphibians and Reptiles,Society for the Study of Amphibians and Reptiles,The chemistry of poisons in amphibian skin,Arthropod-frog connection: Decahydroquinoline and pyr-rolizidine alkaloids common to microsympatric myrmicine ants and dendrobatid frogs,Further classification of skin alkaloids from Neotropical poison frogs (Dendrobatidae), with a general survey of toxic/noxious substances in the Amphibia,Evolution of dietary specialization and chemical defense in poison frogs (Dendrobatidae): A comparative analysis,Designing environments for captive amphibians and reptiles,Bioactive secretions of the amphibian integument,The earliest known salamanders (Amphibia: Caudata): A record from the Middle Jurassic of England,Amphibian species of the world: An online reference. Some amphibians are territorial, and some use olfactory cues to mark their territory and to recognize other individuals of their species. The significance of ultraviolet light to amphibians is unclear.

2019 Feb 4;7:e6291. Some salamanders can recognize other individuals by scent, for example, and the scent of a strange salamander elicits behavioral responses different from those produced by the scent of a familiar individual. Algae and bacteria comprise the diet of most tadpoles, but some species are macrophagous, consuming zooplankton and small crustaceans.