David
Element
Wildlife
Photography
and Digital
Video Images
_
Amphibians and Reptiles 9 - Common Frogs 2
COMMON
FROGS Rana temporaria
- Common Frog
tadpoles suffer from extensive predation - a pattern
which is repeated throughout their lives. The second and
third photographs illustrate the consequences if a
tadpole strays into the clutches of a Water
Boatman Notonecta sp.
In the final analysis only two tadpoles from each mass of
spawn will on average survive to breed, so the apparent
over-production of frogspawn is clearly a necessity. This
seemingly risky reproductive tactic appears to work well
unless a breeding population becomes isolated and in-bred
or a habitat dries out or becomes unsuitable as a
consequence of land development. Photograph four shows a
pair of adults doing their best to redress the balance.
The final two images are captured mini-DV close-ups.
Links
to 'ARKive' species
accounts:
-> Amphibians and Reptiles 1
-> Amphibians
and Reptiles 2
-> Amphibians and Reptiles 4
-> Amphibians
and Reptiles 5
-> Amphibians
and Reptiles 6
-> Amphibians and Reptiles 7
-> Amphibians and Reptiles 8
-> Amphibians
and Reptiles 10
-> Amphibians and Reptiles 11
-> Amphibians and Reptiles 12
-> Amphibians and Reptiles 13
-> Amphibians
and Reptiles 14
-> Amphibians and Reptiles 16
-> Amphibians and Reptiles 17
-> Amphibians and Reptiles 18
-> Amphibians and Reptiles 19
-> Amphibians and Reptiles 20
-> Amphibians and Reptiles 21
-> Amphibians and Reptiles 22
-> Amphibians and Reptiles 23
-> Amphibians
and Reptiles 24
-> Amphibians and Reptiles 25
-> Amphibians and Reptiles 26
-> Amphibians and Reptiles 27
-> Amphibians
and Reptiles 28
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Element.