Strange question about arvalis in Sweden

Norway, Sweden, Finland, Baltic Republics

Strange question about arvalis in Sweden

Postby Peter Engelen » Sun Mar 19, 2017 3:43 pm

Does Rana arvalis in Sweden turn blue for mating?
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Re: Strange question about arvalis in Sweden

Postby Jeroen Speybroeck » Sun Mar 19, 2017 7:27 pm

There are pics of it online.
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Re: Strange question about arvalis in Sweden

Postby Mario Schweiger » Mon Mar 20, 2017 8:55 am

at least in the book: Sveriges grodor, ödlor och ormar is a blue arvalis male
sverige1.jpg
sverige1.jpg (73.08 KiB) Viewed 788 times

sverige2.jpg

and (maybe) an interesting website with lots of citations
http://www.rana.se/Jon/frogs.htm
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Please visit also my personal Herp-site vipersgarden.at
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Re: Strange question about arvalis in Sweden

Postby Thor Hakonsen » Mon Mar 20, 2017 9:18 pm

They do in Norway, so I would be very surprised if they don't in Sweden also. But, I'm not quite sure if they will in all populations (?)

Does any of you guys now if that is the case south of the nordic countries ?
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Re: Strange question about arvalis in Sweden

Postby Berislav Horvatic » Thu Mar 23, 2017 11:07 pm

Thor Hakonsen wrote:They do in Norway, so I would be very surprised if they don't in Sweden also. But, I'm not quite sure if they will in all populations (?)
Does any of you guys now if that is the case south of the nordic countries ?

Pardon me, but WHAT do you mean by "the case south of the nordic countries"? Turning blue, not turning blue, or what?
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Re: Strange question about arvalis in Sweden

Postby Thor Hakonsen » Fri Mar 24, 2017 9:44 am

I think I was very clear :)

In Norway, it seems like in some populations the males does not turn blue for a short period during mating season - but stay in the "normal color" also during breeding. Does anyone know if this also is the case in other countries, or does all breeding males change color in continetal Europe ?


Hope this was clearer :)
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Re: Strange question about arvalis in Sweden

Postby Berislav Horvatic » Sat Mar 25, 2017 4:43 pm

Thor Hakonsen wrote:I think I was very clear :)
In Norway, it seems like in some populations the males does not turn blue for a short period during mating season - but stay in the "normal color" also during breeding. Does anyone know if this also is the case in other countries, or does all breeding males change color in continetal Europe ?
Hope this was clearer :)

Yes, it was/is indeed, thank you. Now just waiting for any relevant/educated answer. Waiting for a loooong time, I'm afraid...
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Re: Strange question about arvalis in Sweden

Postby Jan Pröjts » Sun Apr 16, 2017 4:21 pm

Peter Engelen wrote:Does Rana arvalis in Sweden turn blue for mating?


YES
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Re: Strange question about arvalis in Sweden

Postby Berislav Horvatic » Sun Apr 16, 2017 9:54 pm

Jan Pröjts wrote:
Peter Engelen wrote:Does Rana arvalis in Sweden turn blue for mating?

YES

I do like an answer like that very, very much. A "YES" is a straight & firm "yes" - no kidding. Thanks.
(No, I'm not joking.)
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