Giant Bullfrog 3
|Copyright: Andrzej Korzeniowski (andrzej)
|Date Taken: 2008-01-27|
|Exposure: f/5.6, 1/200 seconds|
|More Photo Info: [view]|
|Photo Version: Original Version|
|Date Submitted: 2008-01-29 9:22|
|[Note Guidelines] Photographer's Note|
|Giant Bullfrogs originally occurred in great densities across South Africa, but extensive loss of habitat with concomitant decline in their numbers have resulted in their being listed by the World Conservation Union as ‘Near-Threatened’ in southern Africa. It is feared that extinction of the species is eminent in the Free State, and has already occurred in Swaziland. |
One of our friends lives on a Plot and saw large numbers of these frogs climbing out of the mud around his land, a lot of them were on the road too. So in he went and began to save them, most of them were put into his large bathtub....you can imagine what his wife's reaction was like :).
Here are some interesting facts I picked up from http://www.ewt.org.za/species_giant_bullfrog.aspx
Giant Bullfrogs can live up to 45 years.
During most of the year, Giant Bullfrogs are in aestivation, buried underground. Their survival depends on large, internal, fat and water reserves, a marked drop in metabolic rate, and significant reduction in evaporative water loss through their skin. The latter is achieved by the development of a cocoon, of up to 75 layers of shed skin.
Adult male Giant Bullfrogs exhibit three size-related reproductive strategies. Large males are territorial, highly competitive, aggressive, and most successful in acquiring mates. Medium-sized males are not territorial, yet still competitive and aggressive; their mating success is not nearly as great as that of large males. Small males are neither territorial nor aggressive, and are usually unable to secure opportunities to mate. These size-dependent reproductive strategies epitomise “survival of the fittest.”
Newly-metamorphosed Giant Bullfrogs are often cannibalistic. This seems to be a survival strategy when sufficient prey is not available to sustain the thousands of froglets.
Large adult male Giant Bullfrogs sometimes exhibit parental care of their offspring. Not only will they actively defend their eggs and tadpoles from predators, these males will also excavate channels to give their tadpoles escape routes to deeper water, when the offspring become threatened by evaporation of water.
Only registered TrekNature members may rate photo notes.
|To jazdzurka: Zaba||andrzej
|You must be logged in to start a discussion.|
beautiful meeting !!
you are so lucky !!!
Very interesting picture. Good point of view and colours. Sharpness is also quite well.
As for me the frame is too wide - I prefer narrower ones (but that's just my point of view). And also I would leave more space between the head of the frog and the frame.
And that's a pity that you didn't add any note.