Rana draytonii in Nevada

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FunkyRes
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Rana draytonii in Nevada

Post by FunkyRes »

There are some references to historic introduced populations of Rana draytonii in Nevada that are apparently difficult to get at to access their current status, or at least that is what just about every paper that references them says.

When was the last time they were verified? Are they still there or did they die out? Anyone know?

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Sam Bacchini
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Re: Rana draytonii in Nevada

Post by Sam Bacchini »

I've heard of this population, but not anything current.

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Fieldnotes
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Re: Rana draytonii in Nevada

Post by Fieldnotes »

My thoughts are, if they followed the fate of introductions elsewhere then they are likely gone.

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FunkyRes
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Re: Rana draytonii in Nevada

Post by FunkyRes »

Yeah, I thought they *might* potentially make a decent source for genetic diversity in re-introduction attempts in former CA habitat. If they survived. Baja specimens might make a good source for SoCal re-introduction. But I thought maybe the Nevada stock might be good for the struggling Sierra populations.

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Bryan Hamilton
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Re: Rana draytonii in Nevada

Post by Bryan Hamilton »

Have you tried contacting any biologists with NDOW?

PM me and I can get you their contact information.

Jackson Shedd
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Re: Rana draytonii in Nevada

Post by Jackson Shedd »

I've wondered about this as well. As for reintroducing R. draytonii to SoCal using Baja stock, this is currently being investigated.

Bryan, pm coming at you...

Robert Hansen
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Re: Rana draytonii in Nevada

Post by Robert Hansen »

Image

Rana draytonii was introduced to multiple localities in Nevada in the 1930s, with stock apparently derived from SF Bay Area populations. This fact was somehow overlooked much later, when a manuscript was developed (but never published) to describe these frogs as a new species ("Rana antiqua"), based on material from Duckwater, Nye Co. In 1984 I visited two sites in Nye Co. and found the frogs to be common. Subsequently, David Green looked at allozymes of these frogs and confirmed their identity as draytonii. I don't know their current status, but the most recent publication (Reaser 2003. Occurrence of the California red-legged frog (Rana aurora draytonii) in Nevada, USA. Western North American Naturalist 63(3):400-401) suggests that frogs persist at some localities. PM me or email ([email protected]) if you want a pdf of the Reaser pub.

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Bryan Hamilton
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Re: Rana draytonii in Nevada

Post by Bryan Hamilton »

Bob. is. the. man.

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Sam Bacchini
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Re: Rana draytonii in Nevada

Post by Sam Bacchini »

Robert Hansen wrote:Rana draytonii was introduced to multiple localities in Nevada in the 1930s, with stock apparently derived from SF Bay Area populations. This fact was somehow overlooked much later, when a manuscript was developed (but never published) to describe these frogs as a new species ("Rana antiqua"), based on material from Duckwater, Nye Co. In 1984 I visited two sites in Nye Co. and found the frogs to be common. Subsequently, David Green looked at allozymes of these frogs and confirmed their identity as draytonii. I don't know their current status, but the most recent publication (Reaser 2003. Occurrence of the California red-legged frog (Rana aurora draytonii) in Nevada, USA. Western North American Naturalist 63(3):400-401) suggests that frogs persist at some localities. PM me or email ([email protected]) if you want a pdf of the Reaser pub.
Glad to hear. I figured that was likely the case.

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