Differential range use between age classes of southern African Bearded Vultures Gypaetus barbatus

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dc.contributor.authorKrüger, Sonjaen_ZA
dc.contributor.authorReid, Timothyen_ZA
dc.contributor.authorAmar, Arjunen_ZA
dc.date.accessioned2015-11-11T14:28:55Z
dc.date.available2015-11-11T14:28:55Z
dc.date.issued2014en_ZA
dc.description.abstractBearded Vulture Gypaetus barbatus movements were investigated in southern Africa to determine whether an individual's age, sex or breeding status influenced its ranging behaviour and to provide the information required to guide conservation activities. Data from satellite transmitters fitted to 18 individuals of four age classes were used to determine range size and use. Because of the nature of the movements of marked individuals, these data could be used to determine the overall foraging range of the entire population, which was estimated to be 51 767 km 2 . Although juvenile, immature and sub-adult birds used different parts of the overall range, their combined foraging range was 65% (33 636 km 2 ) of the overall range. Average adult home ranges (286 km 2 ) were only around 1% the size of the average foraging ranges of non-adults (10 540 -25 985 km 2 ), with those of breeding adults being even smaller (95 km 2 ). Home ranges of breeding adults did not vary in size between seasons but adults utilized their home range more intensively whilst breeding, moving greater distances during the incubation and chick hatching period. Range size and use increased as non-adults aged. Immatures and sub-adults had larger range sizes during winter, but range use of non-adults did not vary seasonally. Range size and use did not differ between the sexes in any of the age classes. Information on home range size and use enables specific areas within the species' range to be targeted for management planning, education and conservation action.en_ZA
dc.identifier.apacitationKrüger, S., Reid, T., & Amar, A. (2014). Differential range use between age classes of southern African Bearded Vultures Gypaetus barbatus. <i>PLoS One</i>, http://hdl.handle.net/11427/14935en_ZA
dc.identifier.chicagocitationKrüger, Sonja, Timothy Reid, and Arjun Amar "Differential range use between age classes of southern African Bearded Vultures Gypaetus barbatus." <i>PLoS One</i> (2014) http://hdl.handle.net/11427/14935en_ZA
dc.identifier.citationKrüger, S., Reid, T., & Amar, A. (2014). Differential range use between age classes of southern African Bearded Vultures Gypaetus barbatus. PloS one, 9(12), e114920. doi:10.1371/journal.pone.0114920en_ZA
dc.identifier.ris TY - Journal Article AU - Krüger, Sonja AU - Reid, Timothy AU - Amar, Arjun AB - Bearded Vulture Gypaetus barbatus movements were investigated in southern Africa to determine whether an individual's age, sex or breeding status influenced its ranging behaviour and to provide the information required to guide conservation activities. Data from satellite transmitters fitted to 18 individuals of four age classes were used to determine range size and use. Because of the nature of the movements of marked individuals, these data could be used to determine the overall foraging range of the entire population, which was estimated to be 51 767 km 2 . Although juvenile, immature and sub-adult birds used different parts of the overall range, their combined foraging range was 65% (33 636 km 2 ) of the overall range. Average adult home ranges (286 km 2 ) were only around 1% the size of the average foraging ranges of non-adults (10 540 -25 985 km 2 ), with those of breeding adults being even smaller (95 km 2 ). Home ranges of breeding adults did not vary in size between seasons but adults utilized their home range more intensively whilst breeding, moving greater distances during the incubation and chick hatching period. Range size and use increased as non-adults aged. Immatures and sub-adults had larger range sizes during winter, but range use of non-adults did not vary seasonally. Range size and use did not differ between the sexes in any of the age classes. Information on home range size and use enables specific areas within the species' range to be targeted for management planning, education and conservation action. DA - 2014 DB - OpenUCT DO - 10.1371/journal.pone.0114920 DP - University of Cape Town J1 - PLoS One LK - https://open.uct.ac.za PB - University of Cape Town PY - 2014 T1 - Differential range use between age classes of southern African Bearded Vultures Gypaetus barbatus TI - Differential range use between age classes of southern African Bearded Vultures Gypaetus barbatus UR - http://hdl.handle.net/11427/14935 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/14935
dc.identifier.urihttp://dx.doi.org/10.1371/journal.pone.0114920
dc.identifier.vancouvercitationKrüger S, Reid T, Amar A. Differential range use between age classes of southern African Bearded Vultures Gypaetus barbatus. PLoS One. 2014; http://hdl.handle.net/11427/14935.en_ZA
dc.language.isoengen_ZA
dc.publisherPublic Library of Scienceen_ZA
dc.publisher.departmentPercy FitzPatrick Institute of African Ornithologyen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.rightsThis is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.en_ZA
dc.rights.holder© 2014 Krüger et alen_ZA
dc.rights.urihttp://creativecommons.org/licenses/by/4.0en_ZA
dc.sourcePLoS Oneen_ZA
dc.source.urihttp://journals.plos.org/plosoneen_ZA
dc.subject.otherBirdsen_ZA
dc.subject.otherForagingen_ZA
dc.subject.otherConservation scienceen_ZA
dc.titleDifferential range use between age classes of southern African Bearded Vultures Gypaetus barbatusen_ZA
dc.typeJournal Articleen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceArticleen_ZA
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