The Great Crested or Warty Newt
The Smooth or Common Newt
The Palmate Newt
The Great Crested or Warty
Newt
(Triturus cristatus)

Male Great Crested Newt ©
Phyl King
The Great Crested Newt is our largest species of newt reaching a maximum
adult length of 170mm. Females tend to be larger than males.
The upper body is dark brownish/black with
a warty skin texture. The belly is yellowish/orange in
colour with black blotches. The crest continues down the
back and is interrupted at the base of the tail. The male
has a white/grey stripe running from the tail tip towards
the centre of the tail, fading as it approaches the abdomen.
Female cresteds lack the male's crest and white tail stripe,
but have a yellow/orange stripe along the bottom of the
tail.
The Great Crested Newt is protected by law
(Wildlife and Countryside Act 1981) and a licence is required
to disturb or handle them. Their decline is partly attributed
to pond drainage and habitat loss. Many large ponds have
been turned into commercial fisheries containing large
numbers of carp, which predate on the newt larvae. The
distribution of Great Crested Newts within Herefordshire
is good, one of the better Counties. There are even ponds
here with all three species present.
It is found throughout Europe and into Asia, where there are five different
subspecies. Britain appears to be a stronghold for Triturus cristatus.
On land, Great Crested newts prey on invertebrates,
slugs, earthworms and soft bodied insects. In the water
they feed on other amphibian larvae, insects, dragonfly
larvae and also the other two species of newt.
Adults return to their breeding ponds in
February after hibernation during winter. They can remain
there until late July/August. They lay their eggs under
the leaves of water plants and overhanging leaves at the
water's edge. Only one egg is laid under a leaf, which
is folded over by the female to protect the egg. To do
this she uses her back legs. A mature female can lay over
200 eggs per season. The emergent larvae are highly predatory
and also cannibalistic. About 18 weeks after hatching,
the newts are ready to leave the pond and hibernate on
land. They tend to hibernate in old walls, amongst piles
of vegetation and brash, log piles and mammal burrows.
Reports from people of finding colonies of
lizards in old walls and buildings usually turn out to
be Great Crested Newts in hibernation or during their terrestrial
period. These newts can move great distances over land,
up to 1000 metres away from a breeding pond, and they have
been known to colonise a new pond 300 metres away from
an existing pond in its first year.
Great Crested Newts can survive up to 25
years.
Click here
for the Great Crested
Newt lifecycle
The
Smooth or Common Newt
(Triturus vulgaris)

Smooth Newt male in breeding condition ©
Phyl King
Smaller than the Great Crested Newt, about
100mm maximum. The male Smooth Newt has a crest, but it
is wavy, not jagged, and continues over the top of
the tailbone. The males have a spotted appearance on the
upper surface, the spots usually black or dull green. The
belly is bright orange with large black spots. The overall
body colour is greenish brown. The crest disappears after
the breeding season and when the male newt is terrestrial.
The female Smooth Newt is very similar to the female Palmate
Newt, usually having a brown body colouration with a light
belly. The female Palmate Newt lacks the spots under the
chin found on the female Smooth Newt.
Found throughout Europe and the British Isles.
This is the only newt found in Ireland. It appears to be
relatively common within Herefordshire, occurring in ponds
with the Great Crested and Palmate Newts.
The Smooth Newt moves to breeding ponds in
late February, mating in the water like the Great Crested,
preceded by an elaborate courtship dance. This can be observed
in clear shallow areas within a pond, the male following
the female around and flicking his tail in her direction.
This sends secretions from his hedonic gland in her direction,
spurring her interest. The male eventually deposits a spermatophore
on the bottom of the pond, which the female transfers to
her cloaca, fertilising her eggs. The eggs are laid on
water plants in the same way as the Great Crested Newt.
Both the young and adults leave the water in June or July,
and by October, are hibernating under logs and rocks as
the weather cools.
The young return to the pond to breed when
3 years old. Smooth Newts have been known to survive up
to 20 years.
They feed on invertebrates and frog larvae.
Predators include fish, especially Sticklebacks,
birds including the Kingfisher and Heron, Water Shrews
and Grass Snakes.
The Palmate Newt
(Triturus helveticus)

Male Palmate Newt
©
Phyl King
This is our smallest newt species, with males
70-90mm and females up to 100mm. It has a smooth skin texture
with fine granulations. The male upper side is olive/brown
with dark green markings. During the breeding season the
male has a short filament at the tail tip, a fairly low
dorsal crest and webbed hind feet. A dark band of colour
runs from the snout tip through the eye. The female is
brown in colour with a pale belly and has no spotting on the throat.
The belly of both sexes is cream or pale orange.
The Palmate Newt is found throughout Europe
and is widespread in England, Scotland and Wales. It used
to be considered a mountain species as it could be found
at altitudes of 1000m in the north of its range, however
it is able to tolerate a variety of climates and habitat
conditions. It is common throughout Herefordshire.
It feeds on small aquatic insects, worms,
slugs and spiders. It is predated on by fish, birds, grass
snakes and large aquatic invertebrates such as dragonflies
and water beetles.
This species will overwinter in ponds. In
February/March it performs a similar courtship dance to
the Smooth Newt, with the female laying eggs over a 3-4
week period. The larvae metamorphose by July/August and
can overwinter to complete metamorphosis. |