Amphibians & Reptiles - Neath Port Talbot · 2017-06-27 · Amphibians and Reptiles in South Wales...

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Amphibians & Reptiles i n S o u t h W a l e s ENVT0836

Transcript of Amphibians & Reptiles - Neath Port Talbot · 2017-06-27 · Amphibians and Reptiles in South Wales...

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Amphibians & Reptilesi n S o u t h W a l e s

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Amphibians and Reptiles in South Wales

Amphibians and reptiles are two ancientgroups of animals that have been on theplanet for a very long time. The study ofamphibians and reptiles is known asHerpetology. To simplify matters, bothgroups of animals will be referred tothroughout this booklet collectively asHerpetofauna. Examples of both groupsof animals live throughout South Walesand display a fascinating range ofbehaviour and survival tactics.

Herpetofauna populations in South Walesare under ever increasing pressure due toa variety of reasons such as habitat loss,colony isolation and humanencroachment. There are many ways inwhich we can assist this group ofmisunderstood animals, which thisbooklet will attempt to highlight so thatthe reader can make their own valuablecontribution towards helping to conserveboth the animals and their habitat.

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The difference between Amphibians and Reptiles

Amphibians, such as frogs, toads andnewts, possess a porous skin that, whenmoist, exchanges oxygen meaning theybreathe through their skin. All amphibianspecies in South Wales have to return towater for breeding purposes. Adultamphibians lay spawn in fresh waterbodies which then hatch and pass througha larval or tadpole stage prior tometamorphosing into miniature versionsof the adults.

• Generally possess smooth, moist skin• Generally slow moving• Generally in or around water

Grass Snake © SWWARG

Common Lizard- female © SWWARG

Smooth Newt © ARC

Common Toad © SWWARG

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display an instantly recognizable darkpatch of skin behind the eye, above theline of the mouth, and have an overallmore athletic appearance than toads. Thespecies varies greatly in colour andpattern and can vary from very paleyellow through to browns and greens toalmost black with reddish individuals(nearly always female) also occurring.

Don’t let the name “Common Frog” mislead you; they are far from common and would benefit greatly from a little help from people. Creating your own pond in your garden for these animals touse as a valuable breeding site is an excellent way to start. Frogs emerge from hibernation in late January to mid February in South Wales and lay clumps of spawn in shallow areas of fresh water.They will regularly make use of garden ponds that are created for them.

Common Toads (Bufo bufo) have drier,rougher skin than frogs. Behind the eyeson the side of the head are a pair ofnoticeable “bumps” which are in factglands that can produce a distasteful

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Reptiles such as snakes and lizards, likeamphibians, are cold blooded orectotherms. This means that they mustwarm themselves up externally, either bybasking in direct sunlight, or bythermoregulation. Thermoregulation is amethod of gaining heat by placing thebody against objects that retain heat.Slow-worms use thermoregulation andare commonly found in heat generatingcompost heaps or beneath heat retainingobjects such as discarded tyres or sheetsof metal. Reptiles possess a watertightskin and either produce live young thatare perfect miniatures of the adults or, inthe case of the Grass Snake, watertight,shelled eggs.

• Possess dry, scaly skin• Fast moving, agile and alert

Reptiles and the Law:All the native reptiles of South Wales are afforded protection under sub-section 9 of the Wildlife and Countryside Act 1981 Offences:The protection under the above legislation means that it is illegal to:Kill or injure a reptile, trade/sell a reptile.

What Amphibians might I see in South Wales?

The Common Frog (Rana temporaria) iseasily distinguished from the CommonToad due to its smooth, moist skin andstrong thrusting hind legs, which enable itto jump impressive distances. Frogs also

Common Frog © ARC

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brown to almost black. They are slowmoving (although they can swim prettyfast when they need to) and have smoothskin. The breeding season lasts fromMarch through to June and takes place inwater. The female normally lays eggsnormally singly or in pairs, attaching themto the leaves of aquatic plants and thenfolds the leaf over the egg with their hindlegs. Males grow a continuous undulatingcrest along the length of the back and tailas well as fringes of skin around the toesof the hind feet. Males also develop largespots on the upper body during thebreeding season. For the remainder ofthe summer, newts live out of the waterand take refuge in shady areas such as logpiles in gardens, venturing out at night tofeed upon small invertebrates.

Palmate Newts (Lissotriton helveticus)are the smallest newt species in SouthWales and can reach 9cm in length

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Common Toad © ARC

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Smooth Newt © ARC

secretion as a defence against predators.Toads tend to hop rather than jump andare almost as variable as frogs in colour,although most tend to be a shade ofbrown often with a tinge of olive green.

Common Toads are also far less commonthese days than in the past. They travel totraditional breeding ponds in mid Februaryto March to breed, producing long stringsof spawn which the females wind aroundthe stems of aquatic plants. The breedingseason is a dangerous time for a toad andmany are killed on roads when travelling toand from their breeding ponds. Althoughless likely to use garden ponds to breed inthan frogs, toads can benefit from simplehabitat piles being created.

The Common or Smooth Newt (Lissotritonvulgaris) can grow to about 10cm in lengthand vary in colour from pale, yellowish

Palmate Newt - Male © Fred Holmes

Female Palmate Newts are commonly confused with Female Smooth newts © ARC

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although they are often considerablysmaller. Their breeding behaviour and lifecycle are almost identical to that ofSmooth Newts, although the male’s crestis far less pronounced than is the case withSmooth Newts and has a straight edge.There is a noticeable “thread” or filamentat the end of the tail of a breeding male aswell as webbing on the hind feet.

The Great Crested or Warty Newt(Triturus cristatus) is the rarest amphibianin South Wales and is a protected species.

Measuring as much as 16cm in length, theycan be twice the length of the twocommoner newt species. The upper bodyis a very dark uniform brown, almost black,whilst the belly is a beautiful marbledpattern of very bright orange and black.The skin is much rougher than is the casewith the other two newt species, which iswhy the animals are sometimes calledWarty Newts. Their breeding and life cycleare very similar to the other two newtspecies although Great Crested Newts are

chiefly nocturnal and can be difficult todetect in ponds during the daytime.

Males develop impressive high crestswhilst in breeding condition, which appearspiky. There is a distinct break in the crestwhere the body ends and the tail begins.

Great Crested Newts and the LawThe Great Crested Newt is a European protected species and is afforded protection under Schedule 5 of the Wildlife and Countryside Act and the Conservation (Natural Habitats) Regulations 1994

Offences:The protection under the listed legislation means that it is illegal to:

• Kill, injure or capture a Great CrestedNewt;

• Disturb a Great Crested Newt in its place of shelter or breeding;

• Possess, control, transport, sell, exchange or offer for sale/exchangeany live or dead Great Crested Newtor any part of a Great Crested Newt.

If any activities are undertaken that result in any of the above an offence would be committed under the law. If prosecuted, fines of about £5,000 can be applied or 6 months imprisonment.

Great Crested Newt - Male © Fred Holmes

Great Crested Newt - Female © Fred Holmes

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the case of females. Lizards feed on awide range of invertebrates such asspiders, aphids and grass hoppers. Theyoung viviparous lizards are born at theend of June or July and apart fromappearing to be black, are perfectminiature versions of the adults. Theword viviparous means live bearing. Thefemales do not produce eggs but givebirth to fully formed live young. Never pick a lizard up by its tail! CommonLizards can shed their tails as a defencemechanism and are able to grow areplacement over time. Lizards requireundisturbed areas, which receive the sunfor most of the day; South facing,unkempt vegetated banks are a favouritehaunt as well as log and stone piles.

The Slow-worm (Anguis fragilis) is a shyspecies of legless lizard that spends most ofits time in the roots of plants and thesurrounding soil hunting for worms and otherinvertebrates that live in the soil. Slow-worms can reach 40 – 45cm in length.

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“Typically coloured pregnant (Gravid) female” © SWWARG

Common Lizard - Male © John Wilkinson

Black (Melanistic) Lizard © SWWARG

What Reptiles might I see in South Wales?The Common or Viviparous Lizard(Zootoca vivipara) reaches around 18cm in length, the majority of which is tail.

They are very fast moving and alertanimals and have dry skin covered in verysmall scales. The colour can vary from apale straw brown through varying shadesof green to instances where individualscan be entirely black. The upper side ofthe body is generally covered with acomplex pattern of speckles and stripeswhilst the belly is generally a variety ofshades of orange covered with blackspeckles in the case of males and grey ora pale peachy orange with no speckling in

Slow-worm - Blue Spotted Male © ARC

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Female Slow Worm © ARC

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Typical Grass Snake colouration is varyingshades of olive green/brown but blackanimals do occur on occasion. The eyes

are a pale olive green with round blackpupils. A distinguishing feature is the areaof skin on the back of the neck of theanimal which is generally a varying shadeof yellow often referred to as the “collar”.Grass Snakes feed chiefly uponamphibians and small fish and are oftenfound close to fresh water. Females layeggs during June or July, seeking out heatgenerating spots such as heaps of woodchip, vegetation or manure to do so, andcommonly making use of compost heaps.Baby Grass Snakes appear from midAugust onwards. Providing much neededundisturbed egg laying and hibernationsites is one easy way to help GrassSnakes.

Although the Adder or European Viper(Vipera berus) is Britain’s only venomoussnake, much hysteria is generated aboutthis animal and it has certainly developedan undeserved reputation. Shy and

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The small white slug that causes so muchdamage in vegetable gardens is anotherfavourite food item. The skin, althoughcomprised of scales, is incredibly smoothand can vary in colour from a pale greythrough to beautiful copper hues. Entirelyblack animals do occur although they areextremely rare. Male Slow-worms are auniform colour all over whilst femalestend to have darker sides and one ormore stripes running the entire length ofthe upper body. Like the Common Lizard,the Slow-worm can shed its tail ifnecessary and does not lay eggs. BabySlow-worms appear at around the sametime as baby Common Lizards and arestunning little beasts, the upper bodyvarying from bright gold to silver orcopper with a noticeable stripe runningthe length of the back. The sides andbelly are black. Compost heaps, whichprovide heat and prey, are a favouritehaunt of the Slow-worm.

Grass Snakes (Natrix natrix) are completelyharmless to humans and are also the largestland based reptile in the UK. The Britishrecord for a Grass Snake is 180cm inlength, but 65 – 80cm is about average.

Grass Snake © ARC

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Grass Snake © ARC

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retiring, Adders only generally bite humanswhen somebody is foolhardy enough totry and pick one up, when the animal issimply trying to defend itself. Adders aresmaller and chunkier in appearance thanGrass Snakes; an animal of 75cm in lengthis exceptionally large. The backgroundcolour is pale grey or brown in the case of

males, with a black stripe running thelength of the body, which is nearly alwaysa zig-zag. Females are slightly larger, thezig-zag being one of a multitude ofshades of browns and the remainder ofthe body a paler shade. Coppery colouredanimals are common and the eyes are redwith vertical pupils. The Adder feedsupon small mammals such as mice andvoles as well as lizards. Adders do notproduce eggs but give birth to live,perfect miniature versions of the adultsfrom mid July through to mid September.

Adder Bite; the FactsThere have been no reported fatalities due to Adder bite in Britain for over 20 years. Adders will only ever bite in defence, i.e. if they have been trodden on or picked up. An Adder’s first line of defence is to disappear into nearby vegetation rather than bite something much larger than itself. 70% of Adder bites received by humans are “dry” i.e. no venom is injected.The very old and the very young are the most likely to be adversely affected by Adder venom. If you think that you may have received a bite from an adder;Do not: • tie a tourniquet• cut the bite to suck out the venom• try and treat it yourself in any way DoGo to your local hospital where they will more than likely monitor you until yourecover naturally or if very young, old orweak they may administer anti-venomRememberDo not allow dogs off the lead in known Adder country; they are far more likely to be bitten than you are

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Male Adder © SWWARG

Female Adder © SWWARG

Ginger baby Adders are often seen © SWWARG

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Ex-industrial land, also referred to as“Brownfield sites”, often provide well-drained habitat for herpetofauna andsupport populations throughout SouthWales.

Railway embankments, hedges androadside verges are also favouredherpetofauna habitat, and are particularlypopular with Slow-worms and otherlizards. They also double up as corridorswhich animals can use to travel along andexpand populations.

Habitat lossHerpetofauna in South Wales havesuffered substantial loss of habitat inrecent years. Development of land forcommercial use, housing and the creationof new road systems takes its toll, whilstmodern agricultural practice and parklandmanagement schemes are seldomsympathetic to the requirements ofherpetofauna. Large areas of habitat thatpreviously supported significantpopulations have now disappeared fromall over Britain, which means that what

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Pond © SWWARG

Where do Amphibians and Reptiles live?Herpetofauna live in a variety of habitatsthroughout South and West Wales.

The most important factors regardingsuitable habitat for amphibians are accessto water for breeding and safe refuge onland. Reptiles need areas that receive a lotof sun and a complex variety ofvegetation of varying height, it doesn’tmatter what the vegetation is so much asits structure.

Typical herpetofauna habitats;

Ponds and surrounding habitat, heathland, woodland rides and edges, bramble and gorse banks, coastal paths & sand dunes.

Allotments can also be a haven forherpetofauna, especially if one or twoplots are disused and undisturbed. Frogs,toads and newts often live in theundergrowth and provide a free pestcontrol service; every allotment wouldbenefit greatly from having its ownwildlife pond. Slow-worms and GrassSnakes can also make use of compostheaps.

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Common Lizard © SWWARG

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help. There are a variety of ways in whichpeople can do so.

Park managers and ground workers arewell placed to ensure that herpetofaunasuffer fewer losses. Slight changes ingrass and scrub cutting regimes canaccommodate the needs of herpetofauna.Something as simple as not cutting grassquite so tight to a hedge line, or leaving anundulating edge rather than a straight onecan make a big difference. Delayingbramble clearance until November, leavingsmall areas of uncut grass or permanentpiles of brash, logs and grass cuttings inquiet corners can also provide manybenefits for herpetofauna.

Although on a smaller scale, garden wildlifeponds, habitat piles and compost heaps allprovide valuable resources forherpetofauna. If one in every ten gardensin the same area included a wildlife pondfor example, then a network of ponds

would be created which wouldsignificantly increase the amphibianpopulation of the area and in turn, Grass Snakes also. In early spring, toads migrateto traditional ponds to breed. Often, the

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little remains must be conserved. Suchaction alone is no longer enough, asHerpetofauna colonies in many areas havebecome isolated from one another due tohabitat loss. When suitable habitat thatexists between herpetofauna colonies(known as corridors) such as hedgerowsare removed, animals are no longer ableto travel from one colony to another andthe smaller colonies in particular canbecome weak, fall into decline rapidly andeventually disappear completely due toinbreeding. New areas of suitable habitatneed to be created to replace what hasbeen lost in order to help isolated coloniesto connect with each other once more.

What can I do to help herpetofauna in South Wales?Herpetofauna in South Wales need your

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Grass snake egg laying site

Grass permitted togrow long

Bramble hedge

Area of cut grass

© SWWARG

Common Toad © SWWARG

Pond © SWWARG

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toads have to deal with the hazard ofcrossing busy roads and many are killed.Once breeding is over, the toads thenhave to return to their home territoriesand take the risk once again. Dedicated“Toads on Roads” patrollers operate,assisting individual colonies with crossingbusy roads throughout the country.There are many colonies that are not solucky. Perhaps you may know of a toadcrossing site? If so, why not set up yourown patrol?

Pond creationEven the smallest pond can be a haven foramphibians. Frogs, Smooth Newts andPalmate Newts can be quick to takeadvantage of new ponds.

Dig your pond with gradual sloping sides.

The majority of life in a pond is among the

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shallowest area or “draw-down zone”.

Ponds with gradual sloping sides have the

widest draw-down zones and therefore

the potential to support the greatest

diversity of life. This feature also makes

ponds much safer places for children and

pets. A garden pond doesn’t have to be

any deeper than 80cm at its deepest

point and can also be significantly

shallower if desired. Where possible,

create a series of smaller ponds of

varying size and depth rather than a

single large one.

Once your pond is filled with water throwin subsoil from your previous excavations.Topsoil is too rich and will leave you withnitrate and algae problems. Don’t worrythat the water is now a horrible browncolour and that the whole thing looks amess. It won’t stay that way for long.

Resist the urge to add fish to the pond. Amphibians fare far better in ponds that do not contain fish. They may survive on occasion in certain situations where fish are present but they will thrive in a fish free pond.

If the ground suits, and in the case oflarger projects in parkland for example,the excavation may hold water withoutthe need for a liner. It is often better insuch cases not to introduce plants but toallow nature to take its course. If you cannot wait and want to plant yourpond, then do so with native plants which

Bucketful of Toads© SWWARG

Pond© SWWARG

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emerging amphibian which hauls itself outonto it.

A new pond will rapidly fill with plant lifeand will eventually choke if leftunchecked. When your pond matures in afew years time, clear excess weed fromyour pond in November which will causethe least disturbance to amphibianpopulations. Be fairly ruthless as the weedwill grow back and open water areas arealso desirable. Do not throw the weedthat you remove from the pond onto thecompost heap straight away though.

Leave it in piles for a few days at the sideof the pond to allow any invertebrate lifeor overwintering amphibian larvaestranded in the weed to make its wayback to the pond.

The above are merely guidelines, abooklet of this size does not providescope to go into detail regarding pondcreation. Check out the contacts list onthe last page of this booklet for moredetailed information and advice.

will provide ideal conditions for themaximum amount of wildlife. Nurseries cansupply native plants that are screened fordisease if you shop around. Don’t takeplants from established ponds, you mayinadvertently introduce disease. Choose anative oxygenator species such asHornwort which can just be thrown as it isinto the water. It will root itself in time ifleft undisturbed.

Garden ponds are normally too small tosupport Water Lilies, which can out growthe average pond rapidly and shade out thelife giving sunlight. There are many othernative flowering aquatic plants which are far better suited to small ponds which can be sourced from nurseries.Water Forget-me-not, Water Soldier, WaterCrowfoot and Frogbit are all good choices.

Ensure that the greater area of the pondedge is comprised of vegetation or grass.Concrete paving slabs around a pondedge not only make it difficult for babyfrogs and newts to emerge but can alsoheat up considerably during the summerand very quickly dehydrate and kill any

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© SWWARG

Series of smaller ponds provides multiple edge habitat Single large pond = Reduced edge habitat

© SWWARG

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Brash

Rubble

Cutaway showing...

Placing a heap of hay on top of a pile oflogs is another method of boosting heatand invertebrate levels

Build a Hibernation Site.

Hay can be added for extra warmth

Suitable hibernation sites or “Hibernacula”are extremely important for herpetofaunaof all kinds and can be lost due todevelopment, often without anybodyeven knowing. Such tragedies canseriously deplete a colony if thehibernation site is destroyed whilst in use.

Creating suitable hibernacula for herpetofauna is simple enough. Materialssuch as hardcore, rubble, brash or logscan be built into a pile and leftundisturbed in a quiet area of the garden.If you position your pile or bank ofmaterial from east to west, it will benaturally south facing and receive sunlightfor the majority of the day as long as it isnot shaded by buildings or trees. If you

© SWWARG

© SWWARG

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Gradual draw-down zone (shallow area)

Raised bars or “schools’improve conditions for

biodiversity

Gradual draw-down

Underlay (if necessary)Layer of subsoilLiner (if necessary)

© SWWARG Cross section of pond

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present to support visits from a GrassSnake. Some larger ponds may be able toprovide an opportunity for Grass Snakes tostay a while longer, in which case you canhelp them further by providing an egglaying site for them. Compost heaps,wood chip piles, grass cuttings and evenmanure heaps all provide sufficient heat toincubate Grass Snake eggs. The larger theegg laying site is the better, but smallercompost heaps are sometimes used byfemales. Try to avoid disturbing the heapbetween mid June and October to enableany eggs present to hatch safely.

Park staff have a wonderful opportunity toprovide larger egg laying sites that areoften used by multiple females. Amassinga pile of woodchip and grass cuttings in aquiet corner that receives sunlight andleaving it alone will benefit Grass Snakepopulations significantly. If the heap is in acorner of a field for example, the grasscutting regime could be adapted to omitthat corner, the resulting longer grassobscuring the heap from unwantedattention.

Grass Snake egg cases found in compost heap © ARC

Young Grass Snakes © ARC

can, cover the bank of material looselywith soil. If you have recently excavated apond, then you should have plenty to hand.Herpetofauna will be able to access thenooks and crannies among the rubbleand/or brash beneath the soil and in doingso will get below the frost line. The largerthat you can make the hibernacula thebetter. In time, vegetation will grow on thehibernacula, or you could plant your ownchoice of native plants.

Create an Egg Laying Site for Grass Snakes

Areas of suitable habitat around ponds withamphibian populations can attract GrassSnakes to take advantage of the feedingopportunities. If you have created awildlife pond in your garden andamphibians have colonised, do not beannoyed or upset if you receive a visit froma Grass Snake. Grass Snake numbers havereduced drastically across Britain in recentyears; to receive a visit from one should beviewed as confirmation that you have donea good job of creating a wildlife pond ifsufficient numbers of amphibians are

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How can I become more actively involved?Amphibian & Reptile Groups of the UK (ARGUK) is a network of volunteer groupsthroughout Britain that conduct habitat and pond restoration and creation projects as wellas Toad Patrols and surveying likely habitat. ARGUK work closely with Local AuthorityBiodiversity teams and the Amphibian and Reptile Conservation (ARC) to help outherpetofauna wherever possible. Contact your local ARG to become actively involved withherpetofauna conservation. It doesn’t matter if you have little or no experience, interestand enthusiasm is all that is required and new members are always welcome.

Useful contacts;

Neath Port Talbot CBC Biodiversity Unitwww.npt.gov.uk/biodiversity – 01639 686168

Carmarthenshire County Council Conservation Section www.carmarthenshire.gov.uk - 01267 224653

Bridgend CBC Countryside & Tourism Sectionwww.bridgend.gov.uk - 01656 643160

ARGUK - www.arg-uk.org.uk

SWWARG (formerly known as WGARG)www.swwarg.co.uk c/o Chaela Carrell,Secretary of SWWARG 01639 686168

ARC - www.arc-trust.org01202 391319

Pond Conservationwww.pondconservation.org.uk

Countryside Council for Wales - www.ccw.gov.uk0845 1306229

AcknowledgementsImages and diagrams courtesy ofSWWARG, additional imagescourtesy of ARC, Fred Holmes andJohn Wilkinson.

Thank you for reading.Peter Hill & Mark Barber - South & WestWales Amphibian & Reptile Group.

Amphibianand ReptileGroups of theUnited Kingdom

ARG UK

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Volunteers © SWWARG

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Common Frog/Y BrogaFrogs have smooth skinsand are athletic. Dark patchusually present behind theeye. They have variablecolouration and markings.Mae croen llyfn gan frogaod ac maent yn athletaidd. Fel rheol, mae ganddynt ddarn o liwdu y tu ôl i'r llygaid. Mae ganddynt liwiau a marciau amrywiol.

Common Toad/Y Llyffant DuToads have drier, rougher skin than frogs. Toads have a pair ofnoticeable “bumps” behind the eyes on the side of the head.Mae croen llyffantod yn fwy sych a garw na chroen brogaod. Maegan lyffantod ddau lwmp amlwg y tu ôl i'r llygaid, ar ochr y pen.

Palmate Newt/Y Fadfall Ddŵr BalfogMale does not developcrest - but rather a lowridge running along the back. Mae gan y gwryw grib isel ar hyd ei gefn yn hytrach nag un llawn fel y Fadfall Gribog Fwyaf.

But note Smooth Newt.../Ond sylwch ar y Fadfall Ddŵr Gyffredin...Male Smooth Newts in peak condition candevelop skin flaps around hind and toes. Gall Madfallod D^wr Cyffredin gwrywaidd areu hanterth ddatblygu fflapiau croen ogwmpas eu coesau ôl a bysedd eu traed.Underside of back foot of female Palmate Newt/Ochr isaf troed ôl Madfall Ddŵr Balfog fenywaiddTwo pale tubercles/nodules. Dau gnepyn/nodiwl gwelw.

Smooth V’s Palmate/Madfall Ddŵr Gyffredin neu Fadfall Ddŵr BalfogThe belly of both sexes of Smooth Newt is yellowto orange with black spots and the spots on thethroat, although not always present, provide agood way of telling this species apart fromPalmate Newts. The throat of the Palmate Newt is plain pink or yellow. Mae bol y Fadfall Dd^wr Gyffredin yn felyn i oren â smotiau du yn y ddau ryw. Er nad ydynt yn bresennol bob amser, mae'r smotiau ar ygwddw yn ffordd dda o wahaniaethu rhwng y rhywogaeth hon a Madfallod D^wr Palfog.Mae gwddw'r Fadfall Dd^wr Balfog yn binc neu felyn, heb farciau.

Great Crested Newt/Y Fadfall Gribog FwyafLarger than Smooth Newt (to 16cm). Male has break in crest atbase of tail. Silvery/white tail stripe on tail prominent. Mae'n fwy na'r Fadfall Dd^wr Gyffredin (hyd at 16cm). Mae toriadyng nghrib y gwryw wrth waelod y gynffon. Streipen wen/arianamlwg ar y gynffon.

Amphibians likely to be encountered/Amffibiaid rydych yn debygol o ddod ar eu traws

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Madfall Dd^

wr Balfog wrywaidd

Male Palmate Newt

Madfall Dd^wr Gyffredin wrywaidd

Male Smooth Newt

Male Smooth Newt

Madfall Dd^

wr Balfog wrywaidd

Male Palmate

Madfall Dd^

wr Balfog fenywaidd

Female Palmate

Madfall Dd^

wr Gyffredin wrywaidd

Smooth

Madfall Dd^

wr Gyffredin

Smooth

Madfall Dd^

wr Gyffredin

Palmate

Madfall Dd^

wr Balfog