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Jan 10th, 2023
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Joined: Dec 2002
Posts: 356
Lunker
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Lunker
Joined: Dec 2002
Posts: 356 |
My province is seeing a drastic reduction in the numbers of frogs and toads recently. I also noticed this in my own wetlands and pond. The gov't is currently studying possible causes for reduction in numbers. I am not suggesting that crayfish play a major role in the widespread lower numbers of frogs/toads, but do they have any or minimal negative impact on the eggs, tadpoles or young? Anyone have any first hand knowledge of this?
Thanks.
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Joined: May 2008
Posts: 477
Lunker
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Lunker
Joined: May 2008
Posts: 477 |
Crayfish eat eggs like crazy both fish and tadpole so I guess an increase in crayfish could cause a decrease in yoy tadpoles.
There is probably something else causing the wide spread reduction in numbers but I guess an invasive crafish species could be partly to blame.
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Joined: Jan 2009
Posts: 10,458 Likes: 2
Ambassador
Field Correspondent
Hall of Fame Lunker
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Ambassador
Field Correspondent
Hall of Fame Lunker
Joined: Jan 2009
Posts: 10,458 Likes: 2 |
I have heard it is mostly pollution which frogs have a porous skin and suck up readily as well as ozone depletion is what is causing frogs and toads to decline in numbers...
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Joined: Jan 2006
Posts: 16,083 Likes: 282
Moderator Lunker
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Moderator Lunker
Joined: Jan 2006
Posts: 16,083 Likes: 282 |
James, I hear about this in other places so I doubt that crawdads would be the answer.
It's not about the fish. It's about the pond. Take care of the pond and the fish will be fine. PB subscriber since before it was in color.
Without a sense of urgency, Nothing ever gets done.
Boy, if I say "sic em", you'd better look for something to bite. Sam Shelley Rancher and Farmer Muleshoe Texas 1892-1985 RIP
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Joined: Jun 2005
Posts: 2,365
Lunker
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Lunker
Joined: Jun 2005
Posts: 2,365 |
Generally speaking, there are many diseases and parasites that infest amphibians on a cyclical basis. They tend to kill the animals with little or no defense. The survivors tend to be more resistant, and they bounce back and improve the species until the next cycle. Sometimes a species decline is blamed on a favorite cause, and it may or may not be factual.
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Joined: Apr 2003
Posts: 1,902
Lunker
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Lunker
Joined: Apr 2003
Posts: 1,902 |
I agree with DD1. In my pond, I have lots of crawdads & lots of frogs.
Pond Boss Subscriber & Books Owner
If you can read this ... thank a teacher. Since it's in english ... thank our military!
Ric
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Joined: Sep 2005
Posts: 110
Lunker
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Lunker
Joined: Sep 2005
Posts: 110 |
I assumed it was the explosion of Canada Geese causing the reduction in frogs.
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Joined: May 2006
Posts: 274
Lunker
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Lunker
Joined: May 2006
Posts: 274 |
shroeder, why do you speculate Canada Geese could be causing reduction in frogs? arent they vegetarian?
thanx
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