Phenology of brown bear breeding season and related geographical cues
Knowledge about breeding biology is often incomplete in species with complex reproductive strategies. The brown bear Ursus arctos is a polygamous seasonal breeder inhabiting a wide variety of habitats and environmental conditions. We compiled information about brown bear breeding season dates from 3...
Published in: | The European Zoological Journal |
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Main Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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Taylor & Francis
2020
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Online Access: | https://repozitorij.uni-lj.si/IzpisGradiva.php?id=121417 https://repozitorij.uni-lj.si/Dokument.php?id=136341&dn= https://repozitorij.uni-lj.si/Dokument.php?id=136340&dn= https://plus.si.cobiss.net/opac7/bib/30001411?lang=sl |
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ftuniljubljanair:oai:repozitorij.uni-lj.si:IzpisGradiva.php-id-121417 2023-05-15T18:42:00+02:00 Phenology of brown bear breeding season and related geographical cues García-Rodríguez, Alberto Rigg, Robin Elguero-Claramunt, I. Bojarska, K. Krofel, Miha Parchizadeh, J. Pataky, T. Seryodkin, I. Skuban, Michaela Wabakken, P. Zięba, F. Zwijacz-Kozica, T. Selva, Nuria 2020-10-08 application/pdf text/url https://repozitorij.uni-lj.si/IzpisGradiva.php?id=121417 https://repozitorij.uni-lj.si/Dokument.php?id=136341&dn= https://repozitorij.uni-lj.si/Dokument.php?id=136340&dn= https://plus.si.cobiss.net/opac7/bib/30001411?lang=sl eng eng Taylor & Francis info:eu-repo/semantics/altIdentifier/doi/10.1080/24750263.2020.1801866 info:eu-repo/grantAgreement/ARRS//P4-0059 https://repozitorij.uni-lj.si/IzpisGradiva.php?id=121417 https://repozitorij.uni-lj.si/Dokument.php?id=136341&dn= https://repozitorij.uni-lj.si/Dokument.php?id=136340&dn= https://plus.si.cobiss.net/opac7/bib/30001411?lang=sl http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess CC-BY The European zoological journal, vol. 87, no. 1, pp. 552-558, 2020. ISSN: 2475-0263 brown bear latitude mating photoperiod season Ursus arctos rjavi medved geografska širina parjenje fotoperiodika sezone info:eu-repo/classification/udc/630*15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2020 ftuniljubljanair https://doi.org/10.1080/24750263.2020.1801866 2021-12-06T10:19:41Z Knowledge about breeding biology is often incomplete in species with complex reproductive strategies. The brown bear Ursus arctos is a polygamous seasonal breeder inhabiting a wide variety of habitats and environmental conditions. We compiled information about brown bear breeding season dates from 36 study areas across their distribution range in the Palearctic and Nearctic regions and investigated how their breeding phenology relates to geographical factors (latitude, photoperiod, altitude and region). Brown bear matings were observed for 8 months, from April to November, with a peak in May%July. We found a 59-day difference in the onset of bear breeding season among study areas, with an average 2.3 days delay for each degree of latitude northwards. The onset of the breeding season showed a strong relationship with photoperiod and latitude, but not with region (i.e. Palearctic vs Nearctic) and altitude. First observa- tions of bear mating occurred earlier in areas at lower latitudes. Photoperiod ranged between 14 and 18 hours at the beginning of the season for most of the study areas. The duration of the breeding season ranged from 25 to 138 days among study areas. None of the investigated factors was related to the length of the breeding season. Our results support the relevance of photoperiod to the onset of breeding, as found in other ursids, but not a shorter breeding season at higher latitudes, a pattern reported in other mammals. Our findings suggest a marked seasonality of bear reproductive behaviour, but also certain level of plasticity. Systematic field observations of breeding behaviour are needed to increase our knowledge on the factors determining mating behaviour in species with complex systems and how these species may adapt to climate change. Article in Journal/Newspaper Ursus arctos Repository of the University of Ljubljana (RUL) The European Zoological Journal 87 1 552 558 |
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Open Polar |
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Repository of the University of Ljubljana (RUL) |
op_collection_id |
ftuniljubljanair |
language |
English |
topic |
brown bear latitude mating photoperiod season Ursus arctos rjavi medved geografska širina parjenje fotoperiodika sezone info:eu-repo/classification/udc/630*15 |
spellingShingle |
brown bear latitude mating photoperiod season Ursus arctos rjavi medved geografska širina parjenje fotoperiodika sezone info:eu-repo/classification/udc/630*15 García-Rodríguez, Alberto Rigg, Robin Elguero-Claramunt, I. Bojarska, K. Krofel, Miha Parchizadeh, J. Pataky, T. Seryodkin, I. Skuban, Michaela Wabakken, P. Zięba, F. Zwijacz-Kozica, T. Selva, Nuria Phenology of brown bear breeding season and related geographical cues |
topic_facet |
brown bear latitude mating photoperiod season Ursus arctos rjavi medved geografska širina parjenje fotoperiodika sezone info:eu-repo/classification/udc/630*15 |
description |
Knowledge about breeding biology is often incomplete in species with complex reproductive strategies. The brown bear Ursus arctos is a polygamous seasonal breeder inhabiting a wide variety of habitats and environmental conditions. We compiled information about brown bear breeding season dates from 36 study areas across their distribution range in the Palearctic and Nearctic regions and investigated how their breeding phenology relates to geographical factors (latitude, photoperiod, altitude and region). Brown bear matings were observed for 8 months, from April to November, with a peak in May%July. We found a 59-day difference in the onset of bear breeding season among study areas, with an average 2.3 days delay for each degree of latitude northwards. The onset of the breeding season showed a strong relationship with photoperiod and latitude, but not with region (i.e. Palearctic vs Nearctic) and altitude. First observa- tions of bear mating occurred earlier in areas at lower latitudes. Photoperiod ranged between 14 and 18 hours at the beginning of the season for most of the study areas. The duration of the breeding season ranged from 25 to 138 days among study areas. None of the investigated factors was related to the length of the breeding season. Our results support the relevance of photoperiod to the onset of breeding, as found in other ursids, but not a shorter breeding season at higher latitudes, a pattern reported in other mammals. Our findings suggest a marked seasonality of bear reproductive behaviour, but also certain level of plasticity. Systematic field observations of breeding behaviour are needed to increase our knowledge on the factors determining mating behaviour in species with complex systems and how these species may adapt to climate change. |
format |
Article in Journal/Newspaper |
author |
García-Rodríguez, Alberto Rigg, Robin Elguero-Claramunt, I. Bojarska, K. Krofel, Miha Parchizadeh, J. Pataky, T. Seryodkin, I. Skuban, Michaela Wabakken, P. Zięba, F. Zwijacz-Kozica, T. Selva, Nuria |
author_facet |
García-Rodríguez, Alberto Rigg, Robin Elguero-Claramunt, I. Bojarska, K. Krofel, Miha Parchizadeh, J. Pataky, T. Seryodkin, I. Skuban, Michaela Wabakken, P. Zięba, F. Zwijacz-Kozica, T. Selva, Nuria |
author_sort |
García-Rodríguez, Alberto |
title |
Phenology of brown bear breeding season and related geographical cues |
title_short |
Phenology of brown bear breeding season and related geographical cues |
title_full |
Phenology of brown bear breeding season and related geographical cues |
title_fullStr |
Phenology of brown bear breeding season and related geographical cues |
title_full_unstemmed |
Phenology of brown bear breeding season and related geographical cues |
title_sort |
phenology of brown bear breeding season and related geographical cues |
publisher |
Taylor & Francis |
publishDate |
2020 |
url |
https://repozitorij.uni-lj.si/IzpisGradiva.php?id=121417 https://repozitorij.uni-lj.si/Dokument.php?id=136341&dn= https://repozitorij.uni-lj.si/Dokument.php?id=136340&dn= https://plus.si.cobiss.net/opac7/bib/30001411?lang=sl |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_source |
The European zoological journal, vol. 87, no. 1, pp. 552-558, 2020. ISSN: 2475-0263 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1080/24750263.2020.1801866 info:eu-repo/grantAgreement/ARRS//P4-0059 https://repozitorij.uni-lj.si/IzpisGradiva.php?id=121417 https://repozitorij.uni-lj.si/Dokument.php?id=136341&dn= https://repozitorij.uni-lj.si/Dokument.php?id=136340&dn= https://plus.si.cobiss.net/opac7/bib/30001411?lang=sl |
op_rights |
http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1080/24750263.2020.1801866 |
container_title |
The European Zoological Journal |
container_volume |
87 |
container_issue |
1 |
container_start_page |
552 |
op_container_end_page |
558 |
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