Text and Data Mining valid from 2018-05-22
Received: 7 April 2018
Accepted: 14 May 2018
First Online: 22 May 2018
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: The authors carefully reviewed the ethical standards of the journal and hereby certify that the procedures used with the investigated species comply fully with those standards. The methods used in the current study were approved by the ethics committee of the Institute of Systematics and Ecology of Animals, Novosibirsk, Russia (ISEA).