KINGDOM |
Animalia |
PHYLUM |
Chordata |
CLASS |
Amphibia |
ORDER |
Caudata |
FAMILY |
Salamandridae |
GENUS/SPECIES |
COMMON NAME |
Triturus cristatus |
Great crested newt (Warty newt) |
Triturus helveticus |
Palmate newt |
Triturus alpestris |
Alpine newt |
Triturus vulgaris |
Smooth newt |

GENERAL INFORMATION ABOUT
TRITURUS NEWTS
- The genus Triturus is a relatively small Eurasian
group which contains some of the most spectacular
transformations in the animal world.
- From relatively dull subterranean denizens to
beautiful adorned and colored water creatures, newts
are popular vivarium subjects throughout the world.
- There are several TRITURUS NEWTS
including the Triturus cristatus, the Triturus vulgaris,
the Triturus alpestris, and the Triturus helveticus.
- All these newts are European newts whose males dress
for breeding.
- There’s no mistaking a Triturus male in breeding
season, and the crested is particularly distinctive.
- Males of this genus grow tall, tadpole-like tails,
with a fin or jagged crest, from the neck, along the
back, and to the tail where the tail crest begins.
- Most male newts exhibit some reshaping of the tail
in breeding season, but few so dramatic as this.
- Newts must be hibernated before they breed at 50
F/10 C
for 2-3 months.
- They eat the usual small invertebrates like little
worms, daphnia, artemia, etc, and do well on pelleted food.

ABOUT THE GREAT CRESTED NEWTS

(Triturus cristatus)
- The Great Crested Newt (Triturus cristatus) occurs
through much of England and into Eastern Wales.
- It is uncommon in Scotland and Southwest England.
- Within its range it can be relatively common.
- The crested newts are the largest (to 15cm) and most
heavily built newts of the genus Triturus.
- They have a warty skin, quite unlike the smooth or
granular skin of the smaller species.
- The back is dark brown or black, and there may be
white stippling along the flanks.
- The belly is usually yellow or orange, with large
black blotches or spots.
- The males develop a high, toothed, black crest
during the breeding season, and a white band at the
sides of the tail.
- The group was originally considered as one species,
but has recently been split into four separate species.
- Triturus carnifex: The Italian Crested Newt.
The Italian crested newt has a distribution centered
around Italy and the former Yugoslavia.
Females and juveniles may exhibit a yellow dorsal stripe,
which is usually absent in the other species, and there
is little white stippling on the flanks.
The throat is yellow and black with white stippling.
- Triturus cristatus: The Northern Crested Newt.
The northern crested newt is widely distributed across
northern Europe.
The wide distribution of this species leads to some
variation in appearance, though white stippling is
almost always present on the flanks, and the throat
is dark with similar stippling.
- Triturus dobrogicus: The Danube Crested Newt.
Formerly also known as T. cristatus danubialis, the
Danube crested newt has a restricted distribution around
the Danube flood plains.
This species is the smallest and least bulkily built of
the cristatus group.
Males have a particularly high crest, which may extend
onto the head.
The distribution of this species is not well known.
It has a small range, and, apart from a small part of
the Black Sea coast, it's distribution is bordered by
the ranges of other crested newt species.
This leads to hybrid zones where the ranges meet, making
it difficult to establish the exact distribution of the
pure species.
- Triturus karelinii: The Southern or Turkish Crested Newt.
The southern crested newt occurs in the far south-east
of Europe.
This is the largest species of the group.
Belly colouration usually extends onto the throat.
- These species are very closely related, and hybrids
have been succesfully bred from most combinations of the
four species.
This group of species, together with the marbled newt,
exhibit a chromosomal anomaly leading to a 50% mortality
of all eggs produced.
- This species is the most rapidly declining of all of
European amphibians.
- For this reason it has legal protection.

ABOUT THE PALMATE NEWTS

(Triturus helvecticus)
- This newt's helvecticus name comes from Switzerland,
where the species was first discovered.
- During the breeding season the male Palmate Newt
has webbed hind feet and a thread at the end of its tail. - The male has a wavy crest along its back.
- The females have none of these features and are almost
identical to each other.
- They are protected under the Bern Convention and the
Wildlife and Countryside Act.
- Its habitat on land is at base of vegetation, under
stones or in soil crevices.
- Its habitat in water is almost any stand of water no
matter how small. Mainly in soft-water areas.
- They usually spend the winter on land in the
hibernating (resting) stage, entering water for breeding
in March/April.
- Individuals may choose to remain in water during
spring and summer or to return to the land.
- The Palmate newt is the smallest British newt species.
- It is widespread although it is not found in Ireland.
- It is less common in hard water areas.
- Because of the skin between its toes, the feet are
like palms of the hand, from which it gets its name.
- Its diet consists mainly of worms, slugs, snails,
small aquatic insects as well as frogspawn tadpoles
and even their own young.
- If there are plenty of beetles then beetles, if a
surfeit of worms then worms.
- They spend much of their time in the weedy shallow water
on the margins of ponds, lakes & slow-flowing rivers.

ABOUT THE ALPINE NEWTS

(Triturus alpestris)
- One of the most attractive newts, both on land and
especially in its aquatic form is the small but extremely
distinctive species, the Alpine newt. The term 'Alpine`
is slightly misleading because although occurring in the
mid and lower elevations of that mountain range they also
dwell vast regions of lowland and other mountain ranges
throughout Europe and Western Russia.
- The Alpine newt possesses the widest range, from
Denmark, the Benelux countries (Belgium, Luxembourg
and Holland), to northern Greece and eastern Russia.
- This 9 - 12.7cm (3.53 - 5in) newt’s dorsal coloration
varies from drab brown in females to a beautiful marbled
arrangement of iridescent blue mottling in males.
- Females also tend to have a granular skin texture
as opposed the velvety texture of males.
- The underside varies from a yellow-orange in females
to a deep blood-red orange in males and speckles are
completely absent.
- During courtship males develop a low (1½ - 2mm) crest
consisting of sequential yellow and black bars.
- Northern Italy is inhabited by the Italian Alpine
(T.a.apuanus) which at a maximum of 10cm is smaller than
the nominate form.
- It is also more aquatic than T.a.alpestris, often
spending the entire year in cool ponds.
- Females are larger and duller than males possessing
flaccid folds of skin on the head, abdomen and limbs.
- Dorsal color is dull brown with black blotches along
the flanks where the venter is a tangerine hue.
- In contrast males are slim, elegant and the most
attractive Alpine newt when in courtship (which is most
of the year).
- Their dorsal colours comprise of opalescent silver
and blue mottling with sky blue along the lower flanks.
- At the edges of the vivid orange venter (which is
heavily spotted on the throat) is a band of silvery white
with black speckling (which extends to the head, legs and
cloaca).
- The lemon-colored crest is 2 - 3mm high with uniform
black zigzags.
- The tail also shows heavy blue and black blotched
cresting. Even the eyes do not escape transformation,
enlarging and turning gold.
- Alpine newts are currently split up into ten different
subspecies.
- Only three subspecies are regularly available in
captivity, almost of an entirely captive-bred derivation.

ABOUT THE SMOOTH NEWTS

(Triturus vulgaris)
- The smooth newt varies greatly in appearance
over it's range.
- The maximum length attained is around 10cm.,
although some individuals may be much smaller.
- The ground colour is olive-grey in both sexes.
- The belly is white or grey, with a central flash
of red or orange.
- The belly is spotted, as is the throat.
- Males usually have more numerous and larger spots
on their flanks than females, and some form of crest is
present on breeding males, as is partial webbing on the hind
feet, and a blue flash along the lower edge of the tail.
- The appearance of breeding males varies widely
throughtout the smooth newt's range, although females are
relatively similar.
- They are nocturnal eaters. As they live around the
edge of ponds they tend to eat what is found there,
although they travel quite far from water.
- They breathe through their skins, as well as with
their lungs.
- In the breeding season they become much more brilliant
in colouring, and the males assume a handsome ornamental
crest on the back and tail.
- Several subspecies of this newt exist:
- T. v. vulgaris.
In this subspecies, which occurs over most of northern
Europe, the breeding male has a high, wavy-edged crest.
There is no tail filament, and no dorsolateral ridges.
- T. v. ampelensis.
This subspecies occurs only in northern Rumania.
- T. v. graecus.
This subspecies is found in Greece and Bulgaria.
Breeding males exhibit relatively straight crests.
There is also webbing on the hind feet, and tail
filaments, much like the palmate newt (which does not
occur in this area).
- T. v. kosswigi.
This species occurs in northern Turkey, along the south
coast of the Black Sea. Like T. v. graecus, this subspecies
exhibits a straight crest, foot webs, and a tail filament.
In addition, it also has strong dorsolateral ridges, also
like the palmate newt.
- T. v. lantzi.
This subspecies occurs along the eastern edge of the
Black Sea.
It is another subspecies having a tail filament, and well
developed foot webbing.
However, this subspecies has a rather denticulate
(toothed) crest, like that of T. v. vulgaris.
- T. v. meridionalis.
This Italian and Slovenian subspecies is another that
has a tail filament, pronounced webbing on the hind feet,
and a straight crest.
The crest in this form is also rather low.
- T. v. schmidtlerorum.
This is a dwarf subspecies, growing to perhaps 6 cm,
and occuring in north-western Turkey.
The foot webbing is very rudimentary, and there is no
tail filament.
The crest is denticulated, even spiky.
- These newts are carnivores at all stages of their
life cycle.

WHY ARE THESE VULNERABLE NEWTS
PROTECTED???
- The main threat posed to newts in Europe is that
of habitat loss.
- Newts require waterbodies surrounded by adequate
terrestrial habitat, in order to support both phases of
their life.
- When either of these two habitats is damaged, a
population may not be able to survive.
- Ponds in Europe are disappearing rapidly, and few
countries have strong legal protection for their ponds.
- Existing ponds may also become degraded, and unable to
support good populations of newts.
- The natural process of succession may lead to ponds
being overgrown with reeds, rushes, shrubs or trees.
- Predation may also be a factor involved in decline in
newt populations.
- Fish, in particular, are important predators of both
adult and larval newts. Predation by introduced fish may
already have led to the extinction of T. alpestris
lacusnigri.
- Larvae of T. marmoratus and of the cristatus group are
particularly susceptible, as they spend most of their time
in the water column, rather than on the bottom.
- Pesticides have been successfully used to eradicate
fish for newt breeding sites, although these must be used
in winter, when the newts are not in the water.
- Collection for the pet trade has been accused of
causing declines in newt populations.
- The larger, more vividly marked species (especially T.
marmoratus, T. cristatus, and T. carnifex) have been common
in the trade in the past, although tighter restrictions on
collection and export in the European Union have now led
to a decrease in the trade in wild-caught specimens.
- Since the collapse of the Soviet Union, there has been
a major increase in the export of live wild-caught animals
from the ex-Soviet states, and T. vittatus has been
exported regularly.
- They are threatened by loss and fragmentation of
suitable aquatic and terrestrial habitat due to natural
succession, construction developments, recreational usage,
land drainage, water abstraction and the in-filling of
ponds and ditches as a result of agricultural intensification
and diversification.
- The decline in the water quality of ponds due to
pollution from agricultural and industrial chemicals
and waste.
- The inappropriate management of known newt sites.
- The poor quality mitigation schemes, such as insufficient
provision of terrestrial habitat and inappropriate pond
designs which favour fish introduction.

TO HELP PROTECT THE
TRITURUS NEWTS
- Existing ponds need maintenance, and local conservation
bodies will advise on projects in your area.
- Surveying is needed, both to locate unrecorded newt
populations, and to monitor existing ones.
- One of the best ways to help newts, if you have a
garden, is to build a pond. Even a small garden pond may
support some of the smaller species.
- To avoid depletion of wild populations, anyone desiring
to maintain captive newts should only buy captive-bred
stock. All of the Triturus species are bred by private
breeders in Europe, and the large numbers of eggs and larvae
produced mean that surplus young newts are often available.
- To halt and reverse the decline of newt populations,
raise awareness of the importance of newts conservation
and the dependence of the species on wetland and terrestrial
habitats.
- Raise the awareness of newts legislation with landowners,
managers, developers etc.
- The GREAT CRESTED NEWT is
protected under Annex IIa and IVa of the EU Habitats
and Species Directive, Appendix II of the Bern Convention
(SI 1994 No. 2716) and by Schedules 5 and 9 of the Wildlife
and Countryside Act 1981.

Music From: I Will Survive

Last Updated: 3-April-1999
WebMaster: Daisy Moreno daisymoreno@HotMail.com
Copyright © 1999. All rights reserved
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