caa a22 4500 463175204 CHVBK 20180406164824.0 cr unu---uuuuu 170326e20070701xx s 000 0 eng 10.1007/s10336-007-0138-0 doi (NATIONALLICENCE)springer-10.1007/s10336-007-0138-0 Male and female contributions to provisioning rates of thin-billed prions, Pachyptila belcheri , in the South Atlantic [Elektronische Daten] [Petra Quillfeldt, Ian Strange, Gernot Segelbacher, Juan Masello] We recorded individual provisioning patterns of male and female thin-billed prions in the largest known colony on New Island (Falkland Islands, South Atlantic Ocean), to determine male and female contributions to provisioning rates and to compare them with data from their other main breeding site, on Kerguelen, in the Southern Indian Ocean. Both male and female birds from New Island undertook trips of 1-8days' duration (median 3days), similar to those on Kerguelen, although we did not observe a clear distinction between long and short trips. Meal sizes increased with longer trips but did not differ between male birds and female birds. Thus, as on Kerguelen, male and female thin-billed prions on New Island contributed equally to chick provisioning. The proportion of short trips was comparable to those observed in a more favourable year, and was higher than those in a poor year, on Kerguelen. In order to avoid potential disturbance to the birds in the colony by frequent capture and handling, we used miniature radio-tags to record the presence of individuals in the colony and to evaluate the influence of transmitter load on the birds. Despite generally deteriorating conditions towards the end of the breeding season, chicks of tagged adults were fed normally, indicating that the method is adequate. Dt. Ornithologen-Gesellschaft e.V., 2007 Procellariiformes nationallicence Foraging nationallicence Monitoring nationallicence Sexual division of parental care nationallicence Nest attendance nationallicence Quillfeldt Petra Max-Planck Institut für Ornithologie, Vogelwarte Radolfzell, Schlossallee 2, 78315, Radolfzell, Germany aut Strange Ian New Island Conservation Trust, The Dolphins, Stanley, Falkland Islands aut Segelbacher Gernot Max-Planck Institut für Ornithologie, Vogelwarte Radolfzell, Schlossallee 2, 78315, Radolfzell, Germany aut Masello Juan Max-Planck Institut für Ornithologie, Vogelwarte Radolfzell, Schlossallee 2, 78315, Radolfzell, Germany aut Journal of Ornithology Springer-Verlag 148/3(2007-07-01), 367-372 0021-8375 148:3<367 2007 148 10336 https://doi.org/10.1007/s10336-007-0138-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10336-007-0138-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Quillfeldt Petra Max-Planck Institut für Ornithologie, Vogelwarte Radolfzell, Schlossallee 2, 78315, Radolfzell, Germany aut NATIONALLICENCE 700 1- Strange Ian New Island Conservation Trust, The Dolphins, Stanley, Falkland Islands aut NATIONALLICENCE 700 1- Segelbacher Gernot Max-Planck Institut für Ornithologie, Vogelwarte Radolfzell, Schlossallee 2, 78315, Radolfzell, Germany aut NATIONALLICENCE 700 1- Masello Juan Max-Planck Institut für Ornithologie, Vogelwarte Radolfzell, Schlossallee 2, 78315, Radolfzell, Germany aut NATIONALLICENCE 773 0- Journal of Ornithology Springer-Verlag 148/3(2007-07-01), 367-372 0021-8375 148:3<367 2007 148 10336 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer