(Table 1) Mean statistics for acoustic parameters measured for both brown skua (Catharacta antarctica lonnbergi) sexes ...
Bird vocalisations are often essential for sex recognition, especially in species that show little morphological sex dimorphism. Brown skuas (Catharacta antarctica lonnbergi), which exhibit uniform plumage across both sexes, emit three main calls: the long call, the alarm call and the contact call....
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ftdatacite:10.1594/pangaea.848403 2023-10-01T03:52:14+02:00 (Table 1) Mean statistics for acoustic parameters measured for both brown skua (Catharacta antarctica lonnbergi) sexes ... Janicke, Tim Ritz, Markus S Hahn, Steffen Peter, Hans-Ulrich 2015 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.848403 https://doi.pangaea.de/10.1594/PANGAEA.848403 en eng PANGAEA https://dx.doi.org/10.1007/s10336-007-0195-4 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 Species Species, common name Sex Relief type Number Standard deviation Duration Repetition rate Percentage Time in seconds Amplitude Amplitude, standard deviation Frequency Frequency, standard deviation Bandwidth Bandwidth, standard deviation Biological sample Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 Dataset Supplementary Dataset dataset 2015 ftdatacite https://doi.org/10.1594/pangaea.84840310.1007/s10336-007-0195-4 2023-09-04T14:52:34Z Bird vocalisations are often essential for sex recognition, especially in species that show little morphological sex dimorphism. Brown skuas (Catharacta antarctica lonnbergi), which exhibit uniform plumage across both sexes, emit three main calls: the long call, the alarm call and the contact call. We tested the potential for sex recognition in brown skua calls of 42 genetically sexed individuals by analysing 8-12 acoustic parameters in the temporal and frequency domains of each call type. For every call type, we failed to find sex differences in any of the acoustic parameters measured. Stepwise discriminant function analysis (DFA) revealed that sexes cannot be unambiguously classified, with increasing uncertainty of correct classification from contact calls to long calls to alarm calls. Consequently, acoustic signalling is probably not the key mechanism for sex recognition in brown skuas. ... : Note that Catharacta antarctica lonnbergi is more officially called Stercorarius lonnbergi. ... Dataset Antarc* Antarctic Antarctica Arctic Brown Skua Sea ice DataCite Metadata Store (German National Library of Science and Technology) Arctic Antarctic |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
language |
English |
topic |
Species Species, common name Sex Relief type Number Standard deviation Duration Repetition rate Percentage Time in seconds Amplitude Amplitude, standard deviation Frequency Frequency, standard deviation Bandwidth Bandwidth, standard deviation Biological sample Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 |
spellingShingle |
Species Species, common name Sex Relief type Number Standard deviation Duration Repetition rate Percentage Time in seconds Amplitude Amplitude, standard deviation Frequency Frequency, standard deviation Bandwidth Bandwidth, standard deviation Biological sample Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 Janicke, Tim Ritz, Markus S Hahn, Steffen Peter, Hans-Ulrich (Table 1) Mean statistics for acoustic parameters measured for both brown skua (Catharacta antarctica lonnbergi) sexes ... |
topic_facet |
Species Species, common name Sex Relief type Number Standard deviation Duration Repetition rate Percentage Time in seconds Amplitude Amplitude, standard deviation Frequency Frequency, standard deviation Bandwidth Bandwidth, standard deviation Biological sample Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 |
description |
Bird vocalisations are often essential for sex recognition, especially in species that show little morphological sex dimorphism. Brown skuas (Catharacta antarctica lonnbergi), which exhibit uniform plumage across both sexes, emit three main calls: the long call, the alarm call and the contact call. We tested the potential for sex recognition in brown skua calls of 42 genetically sexed individuals by analysing 8-12 acoustic parameters in the temporal and frequency domains of each call type. For every call type, we failed to find sex differences in any of the acoustic parameters measured. Stepwise discriminant function analysis (DFA) revealed that sexes cannot be unambiguously classified, with increasing uncertainty of correct classification from contact calls to long calls to alarm calls. Consequently, acoustic signalling is probably not the key mechanism for sex recognition in brown skuas. ... : Note that Catharacta antarctica lonnbergi is more officially called Stercorarius lonnbergi. ... |
format |
Dataset |
author |
Janicke, Tim Ritz, Markus S Hahn, Steffen Peter, Hans-Ulrich |
author_facet |
Janicke, Tim Ritz, Markus S Hahn, Steffen Peter, Hans-Ulrich |
author_sort |
Janicke, Tim |
title |
(Table 1) Mean statistics for acoustic parameters measured for both brown skua (Catharacta antarctica lonnbergi) sexes ... |
title_short |
(Table 1) Mean statistics for acoustic parameters measured for both brown skua (Catharacta antarctica lonnbergi) sexes ... |
title_full |
(Table 1) Mean statistics for acoustic parameters measured for both brown skua (Catharacta antarctica lonnbergi) sexes ... |
title_fullStr |
(Table 1) Mean statistics for acoustic parameters measured for both brown skua (Catharacta antarctica lonnbergi) sexes ... |
title_full_unstemmed |
(Table 1) Mean statistics for acoustic parameters measured for both brown skua (Catharacta antarctica lonnbergi) sexes ... |
title_sort |
(table 1) mean statistics for acoustic parameters measured for both brown skua (catharacta antarctica lonnbergi) sexes ... |
publisher |
PANGAEA |
publishDate |
2015 |
url |
https://dx.doi.org/10.1594/pangaea.848403 https://doi.pangaea.de/10.1594/PANGAEA.848403 |
geographic |
Arctic Antarctic |
geographic_facet |
Arctic Antarctic |
genre |
Antarc* Antarctic Antarctica Arctic Brown Skua Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Arctic Brown Skua Sea ice |
op_relation |
https://dx.doi.org/10.1007/s10336-007-0195-4 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_doi |
https://doi.org/10.1594/pangaea.84840310.1007/s10336-007-0195-4 |
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1778518048483835904 |