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A new baiting scheme and simple method of rhodamine B detection could improve biomarking of small mammals

  • Oleg TolkachevEmail author
Original Article
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Abstract

The success of group biomarking with rhodamine B (RB) is determined by two key stages—baiting and mark detection. This work has two objectives: (1) to examine the suitability of a new bait type and the proposed experimental procedures for marking small mammals with RB and (2) to evaluate the effectiveness of the new method of RB detection in field studies of small mammals. Uniquely designed bait with RB was placed in nine rectangular plots in forest stands. The experiments differed in the area of the marking plots, application rate of the bait, and the time interval before the start of animal trapping. Small mammals were captured and evaluated in a dark room for the presence of RB markings. A green laser with a diffuser was used as the illuminator to excite fluorescence, and orange glass was used for separation of the emission spectrum. The new method for the detection of RB was shown to be simple and reliable. The bait used in this study was proven to be effective and is potentially suitable for most species of small mammals, especially rodents, under certain conditions.

Keywords

Biomarker Fluorescence Mark detection Rhodamine B Small mammals Group marking 

Notes

Funding

This study was performed within the frameworks of state contract with the Institute of Plant and Animal Ecology, Ural Branch, Russian Academy of Sciences.

Compliance with ethical standards

Ethical approval

This research follows national guidelines for the care and use of animals. I did not use any unusual protocols that could contradict the generally accepted standards of animal care.

Conflict of interest

The author declares that he has no conflict of interest.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Institute of Plant and Animal Ecology, Ural BranchRussian Academy of SciencesEkaterinburgRussia

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