Safety of Catching Adult Waders at the Nest - a Request for Data for the Wader Field Methods Manual
Year: 1994
Type: article
Abstract: Following the round table discussions about the scope of the planned field methods manual at the 1993 WSG Conference in Ipswich, it was proposed to include there information on the vulnerability of waders to capture at the nest.In response to a previous EURING initiative, I have collected and published observations and opinions of European ringers on this topic (Kania 1992).A total of 250 persons representing 10 ringing schemes delivered data on 57,000 captures.However not much information about waders was sent (Table 1).Altogether 45 ringers delivered data on 4,637 waders captures, 25% of which concerns Charadrius dubius.Thus additional data are needed.Anyone wishing to share their experience in aid the training of beginners, is asked to copy and complete the questionnaire (Appendix).Data collected this spring or extracted from previous field notes would be best.However, estimations are also welcomed as well as any published information not cited in my paper.If any respondent has found desertion rates significantly different from that shown in Table 1, their suggestions on the possible causes would be very valuable.The causes could be, for instance, the prolongation.of catching, catching device, weather, time of day, ringer's behaviour, advancement of the season, or predator pressure.Results of repeated capture on the same nest (both successful and unsuccessful, concerning one adult as well as both parents) should be reported separately, with information on the time elapsed between trials.I hope that the editor of the manual will agree to include the acknowledgement to each person delivering data.I plan to present the inquiry results during the WSG Conference this autumn.Therefore I would be very grateful for the return of completed questionnaires and other comments not later than in July.
Author: Kania, Wojciech
Language: English
Topic: Avian ecology and behavior
Subfield: Ecology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7153405914