Great Crested Newt
Triturus cristatus
The Great Crested Newt is the largest newt species native to Central Europe. It is characterized by dark, warty skin with white stippling on the flanks and a yellow-orange belly with black spots. During the breeding season, males develop a high, jagged dorsal crest. The species spends part of the year in aquatic habitats for breeding and the remainder in terrestrial, moist habitats.
Details
Identification
Dark, warty upper side, yellow-orange belly with black spots, white stippling on the flanks, jagged crest in breeding males.
Social behavior
Predominantly solitary outside the breeding season; males exhibit complex territorial and courtship behavior during the mating period.
Diet
Carnivorous; feeds on insect larvae, tadpoles, small crustaceans, snails, and occasionally other newt larvae.
Hunting strategy
Ambush predator and active search for prey underwater and on land using visual and olfactory senses.
Spawning substrate
Leaves of aquatic plants, into which the eggs are individually folded using the hind legs.
Overwintering
Overwintering mostly on land in frost-free burrows, under dead wood or stone piles, rarely aquatic.
Ecology
Ecological role
Significant predator in fish-free water bodies; regulates invertebrate populations and serves as prey for larger vertebrates.
Natural predators
Grass snakes, grey herons, predatory fish, mallards; larvae are eaten by backswimmers and diving beetle larvae.
Competitor species
Smooth Newt, Alpine Newt, invasive fish species (food competition and predation).
Ecosystem service
Regulation of insect populations (e.g., mosquito larvae) and contribution to nutrient transfer between aquatic and terrestrial systems.
Threats
Loss of small water bodies, fish stocking, landscape fragmentation, pesticide input, and drying out due to climate change.
Scientific profile
Profile
Distinguishing features
Largest native newt species. During the breeding season, males develop a high, deeply serrated dorsal crest that is interrupted at the tail base, and a silvery-white stripe along the tail sides.
Role in food web
Top predator in fish-free small water bodies; regulates insect and zooplankton populations; serves as prey for larger vertebrates.
Protection & threats
Main threats
Habitat loss and fragmentation, drainage of breeding ponds, illegal fish introduction, pesticide runoff, and barriers in the migratory landscape.
Population trend
Declining across much of Central Europe due to habitat loss and population isolation.
Conservation measures
Creation and restoration of fish-free ponds, protection and connectivity of terrestrial habitats, and monitoring according to the Habitats Directive.