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Bullfrogs vs Natives in the west

Subject: Bullfrogs vs Natives in the west
From: Doug Von Gausig <>
Date: Sat, 28 Jun 2003 08:42:43 -0700
At 12:27 AM 6/28/2003 -0400, Walter Knapp wrote:
>  It was loaded with frogs of several species.

>Would not want to pass a bullfrog by and later find it had never been
>reported in that county.

This makes me wonder why the Bullfrogs in your area have not extirpated all 
the others frog species. Out west here that's a real problem - Bullfrogs 
get established as an invasive and they eat all others (except Wodehouse's 
Toads in my area). It must be because the other frogs in your area 
co-evolved with Bullfrogs and therefor have natural defenses, whereas in 
the west Bullfrogs are an invasive and the native species didn't evolve 
with any Bullfrog defenses?


Doug Von Gausig
,( --------------------------------- ),
Authorized North American Telinga Microphone Sales
Accuracy and Convenience for Top Nature Recordists

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