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is this an unwanted alien (1 Viewer)
- Thread starter Surreybirder
- Start date
Farnboro John
Well-known member
Its a Marsh Frog and they are now established across Kent and East Sussex, right up the Thames and into Surrey as far as Claremont Landscape Gardens. You are years too late to make any difference.
John
John
Surreybirder
Ken Noble
I do know that they are horrendously noisy - we had a large one a couple of years ago and it kept us awake at night.
Surreybirder
Ken Noble
Do they have any impact on native species? We don't seem to have many dragonflies emerging this year.
Also, how do you know that they are not pool frogs, which are protected according to one website I saw? We've seen at least six in our garden pond - and some of them don't seem much larger than our native frog.
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Farnboro John
Well-known member
I know they are not Pool Frogs for a couple of reasons, one being that Pool Frogs became extinct in the wild and are currently the subject of a reintroduction process in East Anglia. There are a couple of very small unofficial introductions of Pool Frogs of which I am aware: neither are as close to you as very large populations of Marsh Frogs which have already demonstrated their rapid and effective colonising ability.
As far as dragonflies are concerned there are no species in Britain that do not live alongside Marsh Frogs in continental Europe. As adults Marsh Frogs may prey on dragonflies either in larval form or just conceivably in adult form. When the Marsh Frogs themselves are in larval form as tadpoles the boots in the pond will be entirely on the dragonfly larvae's feet.
John
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