Responses of raptors to habitat fragmentation : from individual responses to population susceptibility

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dc.contributor.authorCurtis, Odette Elisabethen_ZA
dc.date.accessioned2014-08-28T14:21:28Z
dc.date.available2014-08-28T14:21:28Z
dc.date.issued2005en_ZA
dc.description.abstractHabitat fragmentation has different effects on species and communities, depending on a suite of life-history and population traits: some species are more vulnerable to the effects of fragmentation than others. Contrasting responses suggest there are particular species' attributes that make an organism more or less susceptible to the effects of fragmentation. Much research has focused on identifying which of these traits are the most useful indicators of a species' fragmentation-linked extinction risk. For example, body size, rarity, ecological specialization, matrix use, range size and turnover rate have all been linked with species extinction risk. Few studies have, however, attempted to explore the traits that predispose raptors to vulnerability from fragmentation. In this study, I compare the responses of two near-sympatric raptors (the Black Harrier Circus maurus and the Black Sparrowhawk Accipiter melanoleucus) to habitat fragmentation. On a broader scale, I use a simple model of susceptibility to fragmentation effects, and a sample of hawks (Accipiter spp) and harriers (Circus spp) in the family Accipitridae, to predict which species attributes are most likely to produce a negative response to habitat fragmentation. I then compare these predictions with the current global threat status of each species to test whether the model can predict threat status with acceptable accuracy.en_ZA
dc.identifier.apacitationCurtis, O. E. (2005). <i>Responses of raptors to habitat fragmentation : from individual responses to population susceptibility</i>. (Thesis). University of Cape Town ,Faculty of Science ,Percy FitzPatrick Institute of African Ornithology. Retrieved from http://hdl.handle.net/11427/6727en_ZA
dc.identifier.chicagocitationCurtis, Odette Elisabeth. <i>"Responses of raptors to habitat fragmentation : from individual responses to population susceptibility."</i> Thesis., University of Cape Town ,Faculty of Science ,Percy FitzPatrick Institute of African Ornithology, 2005. http://hdl.handle.net/11427/6727en_ZA
dc.identifier.citationCurtis, O. 2005. Responses of raptors to habitat fragmentation : from individual responses to population susceptibility. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Curtis, Odette Elisabeth AB - Habitat fragmentation has different effects on species and communities, depending on a suite of life-history and population traits: some species are more vulnerable to the effects of fragmentation than others. Contrasting responses suggest there are particular species' attributes that make an organism more or less susceptible to the effects of fragmentation. Much research has focused on identifying which of these traits are the most useful indicators of a species' fragmentation-linked extinction risk. For example, body size, rarity, ecological specialization, matrix use, range size and turnover rate have all been linked with species extinction risk. Few studies have, however, attempted to explore the traits that predispose raptors to vulnerability from fragmentation. In this study, I compare the responses of two near-sympatric raptors (the Black Harrier Circus maurus and the Black Sparrowhawk Accipiter melanoleucus) to habitat fragmentation. On a broader scale, I use a simple model of susceptibility to fragmentation effects, and a sample of hawks (Accipiter spp) and harriers (Circus spp) in the family Accipitridae, to predict which species attributes are most likely to produce a negative response to habitat fragmentation. I then compare these predictions with the current global threat status of each species to test whether the model can predict threat status with acceptable accuracy. DA - 2005 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2005 T1 - Responses of raptors to habitat fragmentation : from individual responses to population susceptibility TI - Responses of raptors to habitat fragmentation : from individual responses to population susceptibility UR - http://hdl.handle.net/11427/6727 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/6727
dc.identifier.vancouvercitationCurtis OE. Responses of raptors to habitat fragmentation : from individual responses to population susceptibility. [Thesis]. University of Cape Town ,Faculty of Science ,Percy FitzPatrick Institute of African Ornithology, 2005 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/6727en_ZA
dc.language.isoeng
dc.publisher.departmentPercy FitzPatrick Institute of African Ornithologyen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherZoologyen_ZA
dc.titleResponses of raptors to habitat fragmentation : from individual responses to population susceptibilityen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMSc
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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