Орлы и пластиковые кольца - использовать или нет

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Орлы и пластиковые кольца - использовать или нет

Сообщение igor » 16 янв 2016, 13:20

Про потерю многими крупными орлами пластиковых колец в первый же год жизни уже написано тут >>> Поэтому мы перешли в последний год полностью на алюминиевые кольца.

Но вот по подорликам сведений о масштабной утере ими колец у нас нет.
Но зато вот что пишет про это Бернд Мейбург:

A colour ringing programme for A. pomarina in Slovakia was accepted put into practice in the year 2000. A readable plastic yellow ring with a black alpha-numerical two-digit code (combination of two letters, numbers or letter and number) was used.

In Germany rings from Slovakia were subsequently used on adult LSEs trapped and fitted with satellite transmitters by B.-U. Meyburg.

After an adult male was subsequently seen to be still wearing the satellite transmitter and the metal ringing centre ring, but not the plastic colour ring, we thought about metal readable rings. A second hatched young (“Abel”) reared in captivity in Latvia, translocated to Germany and released there was observed to have already removed its orange colour ring from Latvia during the post-fledging dependence period.

An adult female, marked in 2000 as a nestling with a ringing centre metal ring, was trapped in 2004 during the rearing phase of its young and fitted additionally with a satellite transmitter and a yellow plastic ring from Slovakia. In 2013 it was identified at its old breeding site on an automatic wildlife camera. It wore the still active satellite transmitter and the metal ring, but not however the plastic ring.

In the time frame 2004-2014 total of 80 young eagles were released into the wild in Brandenburg, and two more in Mecklenburg-Western Pomerania. As most of them were marked with yellow and orange readable plastic rings from Slovakia and Latvia, it can no longer be definitely established how many of them have resettled. In subsequent years a few eagles were recorded by automatic wildlife cameras in Brandenburg.

As a result of these experiences, metal readable rings for young birds began to be used in Germany from 2007. Subsequently we used only these metal rings for adults starting in 2013. We are prepared to give free of charge a large number of these rings to LSE specialists in other countries.

Обратите внимание на его предложение получить кольца бесплатно!
Игорь
Татаро-Монголия
http://sibecocentre.ru/raptors.htm
http://volgabirds.ru/
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igor
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