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Amphibians in Your Garden Amphibians – Frogs, Toads and Newts – Are Remarkable Animals, Spending Part of Their Lives Under Water and the Remainder on Land

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Amphibians in Your Garden Amphibians – Frogs, Toads and Newts – Are Remarkable Animals, Spending Part of Their Lives Under Water and the Remainder on Land Amphibians in Your Garden Amphibians – frogs, toads and newts – are remarkable animals, spending part of their lives under water and the remainder on land. Many species have suffered huge population declines due to the loss of suitable habitats such as wetland areas and natural pools and ponds. Wildlife gardens, in particular those with ponds, can provide a vital sanctuary for these vulnerable creatures. In Cornwall, where there is thought to be a lower density of ponds than other parts of the country, they may play an even more important role in helping to conserve the breeding populations. Amphibians in Cornwall varied depth profile; a range of native marginal and Cornwall is home to three (or possibly four) of the aquatic plants (but also enough open water to allow seven amphibian species native to the UK: common feeding and courtship); long grass around the edge; frog, common toad and palmate newt. Smooth newt and a sunny, sheltered location away from overhanging is the most common newt in Britain as a whole but trees. its natural range has only ever extended into the far east of the county and its continued presence is not The amphibian life cycle certain. The rare species, natterjack toad and great Amphibians have to breed in water but spend most of their crested newt, are not found lives on land in damp habitats. Hibernating throughout winter, they emerge and return to here, nor is the the pool their breeding ponds in early spring. frog which has only recently This is generally around February to been confirmed as native March but in the west of Cornwall to south east England and breeding in January or December is reintroduced there. Several common, while on The Lizard some non-native species are also frogs breed as early as October. occasionally found in the Spawn (jelly-covered eggs) is laid Tadpole development wild after having escaped or Photo: Adrian Davey in still or slow-moving fresh water, been released. Frogs, toads and often among plants. These grow into aquatic tadpoles newts can be found in almost any damp habitat with with external gills but soon develop lungs and legs, plenty of cover and suitable breeding ponds nearby metamorphosing into froglets, toadlets or efts (juvenile e.g. meadows, marshes, heathland, hedgerows, open newts) which leave the water by the end of summer and woodland and gardens. mature on land. They become sexually mature after two to three years and Creating an amphibian-friendly garden then return to the pond to breed. The best way to help frogs, toads and newts is to build a garden pond. Once constructed, wildlife ponds Some other key points to remember require little maintenance, will benefit a wide variety of plants and animals and are an ideal way to introduce • The centre of your pond need only be around 30cm children to wildlife. deep. Include a number of shallower areas and have at least one side sloping gradually to dry land to help More detailed information on creating and maintaining amphibians get in and out, particularly emerging wildlife ponds can be found in the separate information young. sheet, but in general amphibians prefer ponds with: a • Even small container ponds (for example using an old sink, bucket or stone trough) can be beneficial as a place for amphibians to cool down as long as you ensure they are able to get in and out. • Allow your new pond to become colonised naturally by amphibians that are likely to be already present in the area. Do not transfer spawn or tadpoles between ponds as you risk spreading diseases and parasites or introducing non-native invasive plants. If the conditions are right in the pond then the wildlife will find you! Photo: Frankie Cowling Identification Guide Common frog Common toad (Rana temporaria) (Bufo bufo) Description Description Adults 6-9 cm (male Adults 8-13 cm (male smaller usually smaller than than female). Broad, squat female). Smooth, moist bodies. Rough ‘warty’ skin, skin. Typically brown or often appears dry. Usually olive green but sometimes brown or olive-brown with yellowish-orange, red or some darker markings but grey. Body variably spotted occasionally almost black or or striped with dark bars on brick red. Distinct bulges on Photo: Terry Dunstan legs. Distinctive dark patch Photo: Terry Dunstan back of head, the parotoid behind the eyes. Tends to glands, which produce toxins jump not crawl. to deter predators. Tends to crawl not jump. Spawn is laid in Spawn is laid in long double string of eggs clumps in shallow in fairly deep water. water. Black Tadpoles remain jet black tadpoles become Frog tadpole and often form shoals. mottled with gold/ Grow back legs first. brown as they develop and do not shoal. Toadlets are often very Toad tadpole Grow back legs first. dark in colour. Frogspawn Habits: Follows traditional migration route to Habits Toadspawn ancestral breeding pond, preferring large, deep Prefers shallow water for breeding. Hibernates in a water bodies. May remain in gardens for long periods in sheltered place on land or at the bottom of the pond. summer, hiding in damp hollows, compost heaps, leaf piles Feeds on a variety of insects and other invertebrates such etc. which may also be used for hibernation. Most active at as slugs, snails and worms which they catch using their night, feeding on invertebrates including worms, slugs, ants, long, sticky tongues. Usually seen February to October but spiders, insect larvae and even young frogs, newts and mice! emerge from hibernation earlier in Cornwall. Usually seen April to October but emerge from hibernation earlier in Cornwall. Palmate newt (Lissotriton helveticus) (formerly Triturus helveticus) Smooth or Common newt Description (Lissotriton vulgaris) (formerly Triturus vulgaris) Adults 6-9 cm. Smooth velvety Description skin. Brown/olive with a yellow/ Adults around 10-11 cm. Very similar to palmate newt but orange underside. Throat is throat is creamy white and usually spotted or speckled. During pale or pinkish and lacks spots the breeding season males develop a more prominent wavy (often distinguishing from crest from head to tail, fringing on the hind toes and bright smooth newt which usually orange undersides. Eggs and larvae are indistinguishable has throat spots). During the Photo: Terry Dunstan from palmate. breeding season males develop a low, straight-edged crest on the back, a more developed Habits crest on the tail, a ‘thread’ at the end of the tail and black webbing on the back feet. Prefers still water with reedbeds and weeds such as lake margins, ditches and ponds. Natural range restricted to the far east of Cornwall but it is not clear whether the species still Spawn is laid as individual exists there. Outside of the breeding season found in damp eggs (grey or beige) wrapped areas of the garden hiding in leaf litter, long grass and under in submerged plant leaves. stones. Feeds mostly on small invertebrates, either aquatic Larvae have a frill of gills or terrestrial, and also preys on tadpoles. behind the head and develop front legs first. Newt egg Amphibians and the Law Newt larvae Habits All of Cornwall’s native amphibians are protected Prefers still, shallow ponds on acid soils. Widespread against sale under the Wildlife and Countryside in Cornwall and garden ponds often used for breeding. Act 1981. It is also illegal to introduce any non- Outside of the breeding season found in damp areas of the native species into the wild. garden hiding in leaf litter, long grass and under stones. Hibernates under stones, in compost heaps or in mud at the bottom of pools. Feeds mostly on small invertebrates, either aquatic or terrestrial, and also preys on tadpoles. Illustrations by Sarah McCartney More ways to help amphibians....... • For a real wildlife-friendly pond, do not introduce • Features such as piles of logs and leaves, rockeries, fish; they will quickly devour compost heaps, hedge bases and flower beds help spawn and tadpoles. attract invertebrate prey and provide shelter and • Try to avoid using any hibernation sites. A frog/toad home can provide an chemicals or poisons in your additional refuge in the garden. garden that could leak into • Keep areas of vegetation in your garden rough and your pond or kill invertebrate long, especially around your pond to provide shelter prey. Remember that and hunting grounds for amphibians. An associated amphibians prey heavily on slugs, snails and insects, marsh area is particularly beneficial. Photo: Ian French acting as a natural pest • Mown areas near the pond should be kept control. permanently short so that you will be able to see and avoid any amphibians when cutting the grass. • Early autumn is the best time to carry out any • Avoid features like slabs or cobbles around your necessary pond management as you’re least likely pond so that young don’t have to cross large areas to disturb amphibian breeding or hibernation (and of hot, dry stone. other wildlife). Frequently asked questions has died or was unfertilised, you mayfeel it necessary to move the dead spawn onto the top of acompost I’ve found an amphibian, what shall I do? heap away from the pond to allow mammals and birds Amphibians spend the majority of their life on land and to eat it there and prevent contamination of the water. are often found in gardens, sometimes hundreds of metres from water. Unless the animal is in immediate How can I help amphibians during freezing or danger you do not need to move it or do anything hot weather? for it. If you’ve found it near a road or in a part of Some frogs spend winter hibernating at the bottom the garden you’re working on, release it into nearby of ponds.
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