Browsing Research Articles (Zoology and Entomology) by UP Author "Cameron, Elissa Z."

Browsing Research Articles (Zoology and Entomology) by UP Author "Cameron, Elissa Z."

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  • Africa’s drylands in a changing world : challenges for wildlife conservation under climate and land-use changes in the greater Etosha landscape 
    Turner, Wendy C.; Periquet, Stephanie; Goelst, Claire E.; Vera, Kimberlie B.; Cameron, Elissa Z.; Alexander, Kathleen A.; Belant, Jerrold L.; Cloete, Claudine C.; Du Preez, Pierre; Getz, Wayne Marcus; Hetem, Robyn S.; Kamath, Pauline L.; Kasaona, Marthin K.; Mackenzie, Monique; Mendelsohn, John; Mfune, John K.E.; Muntifering, Jeff R.; Portas, Ruben; Scott, H. Ann; Strauss, W. Maartin; Versfeld, Wilferd; Wachter, Bettina; Wittemyer, George; Kilian, J. Werner (Elsevier, 2022-10)
    Proclaimed in 1907, Etosha National Park in northern Namibia is an iconic dryland system with a rich history of wildlife conservation and research. A recent research symposium on wildlife conservation in the Greater Etosha ...
  • Anthropogenic influences on spotted hyaena diet in the Kruger National Park, South Africa 
    Belton, L.E. (Lydia); Cameron, Elissa Z.; Dalerum, Fredrik (Springer, 2018-07)
    Rapid urban expansion has led to an increase in carnivores that live close to human dominated environments. Some carnivore species have successfully adapted to these novel conditions and taken advantage of opportunities ...
  • An assessment of diet overlap of two mesocarnivores in the North West Province, South Africa 
    Van der Merwe, Ingrid; Tambling, Craig J.; Thorn, Michelle; Scott, Dawn M.; Yarnell, Richard W.; Green, Matthew; Cameron, Elissa Z.; Bateman, Philip W. (Zoological Society of Southern Africa, 2009-10)
    We used scat analysis to study the diet of two sympatric medium-sized carnivores: brown hyaena and black-backed jackal, in the NorthWest Province of South Africa. Seven major dietary categories were identified from the ...
  • Behavioural and endocrine correlates to the aardwolf mating system 
    Marneweck, David G.; Cameron, Elissa Z.; Ganswindt, Andre; Dalerum, Fredrik (Elsevier, 2015-01)
    It is now widely recognized that mating systems contain both social and genetic components, where social components describe patterns of social associations while genetic components reflect patterns of mating activities. ...
  • Comparative efficacy of sign surveys, spotlighting and audio playbacks in a landscape-scale carnivore survey 
    Thorn, Michelle; Green, Matthew; Bateman, Philip W.; Cameron, Elissa Z.; Yarnell, Richard W.; Scott, Dawn M. (Southern African Wildlife Management Association, 2010-04)
    Many carnivores are difficult and labour-intensive to detect, often leading to prohibitively high effort and cost in large-scale surveys.However,such studies provide information that is important for effective management ...
  • Dissimilar home range estimates for black rhinoceros Diceros bicornis cannot be used to infer habitat change 
    Linklater, Wayne L.; Plotz, Roan D.; Kerley, Graham I. H.; Brashares, Justin S.; Lent, Peter C.; Cameron, Elissa Z.; Law, Peter R.; Hitchins, Peter M. (Cambridge University Press, 2010-01)
    No abstract available.
  • Effects of lions on behaviour and endocrine stress in plains zebras 
    Periquet, Stephanie; Richardson, Peter; Cameron, Elissa Z.; Ganswindt, Andre; Belton, L.E. (Lydia); Loubser, Elize; Dalerum, Fredrik (Wiley, 2017-09)
    Living under predation risk may alter both behaviour and physiology of potential prey. In extreme cases, such alterations may have serious demographic consequences, and recent studies support that non-lethal effects of ...
  • Estimating brown hyaena occupancy using baited camera traps 
    Thorn, Michelle; Scott, Dawn M.; Green, Matthew; Bateman, Philip W.; Cameron, Elissa Z. (Southern African Wildlife Management Association, 2008-04)
    Conservation and management of brown hyaenas (Hyaena brunnea) is hampered by a lack of information on abundance and distribution, which is difficult and labour-intensive to obtain. However, occupancy surveys offer a ...
  • Estimating carnivoran diets using a combination of carcass observations and scats from GPS clusters 
    Tambling, Craig J.; Laurence, S.D.; Bellan, S.E.; Cameron, Elissa Z.; Du Toit, Johan T.; Getz, Wayne Marcus (Wiley-Blackwell, 2012-02)
    Scat analysis is one of the most frequently used methods to assess carnivoran diets, and global positioning system (GPS) cluster methods are increasingly being used to locate feeding sites for large carnivorans. However, ...
  • Extension of the diet of an extreme foraging specialist, the aardwolf (Proteles cristata) 
    De Vries, J.L.; Pirk, Christian Walter Werner; Bateman, Philip W.; Cameron, Elissa Z.; Dalerum, Fredrik (Zoological Society of Southern Africa, 2011-04)
    The aardwolf, Proteles cristata, is a highly specialized myrmecophagous carnivore that feeds almost exclusively on termites of the genus Trinervitermes. Here we report data from an ongoing analysis of aardwolf diet, where ...
  • Extreme sex ratio variation in relation to change in condition around conception 
    Cameron, Elissa Z.; Linklater, Wayne L. (Royal Society, 2007-08)
    Adaptive theory predicts that mothers would be advantaged by adjusting the sex ratio of their offspring in relation to their offspring's future reproductive success. Studies investigating sex ratio variation in mammals ...
  • Interactive effects of species richness and species traits on functional diversity and redundancy 
    Dalerum, Fredrik; Cameron, Elissa Z.; Kunkel, Kyran; Somers, Michael J. (Springer, 2012-02)
    The importance of species diversity for ecosystem function has emerged as a key question for conservation biology. Recently, there has been a shift from examining the role of species richness in isolation towards understanding ...
  • Large-scale distribution patterns of carnivores in northern South Africa : implications for conservation and monitoring 
    Thorn, Michelle; Green, Matthew; Mark, Keith; Marnewick, Kelly; Bateman, Philip W.; Cameron, Elissa Z.; Scott, Dawn M. (Cambridge University Press, 2011)
    Accurate assessment of carnivore population status is frequently hindered by insufficient distribution data. For northern South Africa we address this deficit by mapping new records from landscape-scale sign ...
  • Non-invasive assessment of adrenocortical function in captive Nile crocodiles (Crocodylus niloticus) 
    Ganswindt, Stefanie Birgit; Myburgh, Jan G.; Cameron, Elissa Z.; Ganswindt, Andre (Elsevier, 2014-11)
    The occurrence of stress-inducing factors in captive crocodilians is a concern, since chronic stress can negatively affect animal health and reproduction, and hence production. Monitoring stress in wild crocodiles could ...
  • Pattern of faecal 20-oxopregnane and oestrogen concentrations during pregnancy in wild plain zebra mares 
    Ncube, Hlengisizwe; Duncan, Patrick; Grange, Sophie; Cameron, Elissa Z.; Barnier, Florian; Ganswindt, Andre (Elsevier, 2011-07)
    Regulative endocrine mechanisms influence the reproductive behaviour and success of mammals, but they have been studied predominantly in domestic and captive animals. The study aims at describing the pattern of faecal ...
  • Prevalence of allosuckling behaviour in Subantarctic fur seal pups 
    De Bruyn, P.J. Nico; Cameron, Elissa Z.; Tosh, Cheryl A.; Oosthuizen, Wessel Christiaan; Reisinger, Ryan Rudolf; Mufanadzo, N. Thomas; Phalanndwa, Mashudu V.; Postma, Martin; Wege, Mia; Van der Merwe, Derek S.; Bester, Marthan Nieuwoudt (Elsevier, 2010-01)
    Non-offspring maternal care should be rare due to the high costs of raising offspring, particularly lactation, but nonetheless occurs in a variety of taxa. Misguided parental care, associated with recognition errors and/or ...
  • Sex at sea : alternative mating system in an extremely polygynous mammal 
    De Bruyn, P.J. Nico; Tosh, Cheryl A.; Bester, Marthan Nieuwoudt; Cameron, Elissa Z.; McIntyre, Trevor; Wilkinson, I.S. (Ian Stewart) (Elsevier, 2011-09)
    Polygyny is a widespread and evolutionarily significant mating system in vertebrates. The southern elephant seal, Mirounga leonina, has often been cited as an example of an animal with an extremely polygynous mating ...
  • Sex ratio variation in a eusocial mammal, the Damaraland mole-rat, Fukomys damarensis 
    Lutermann, Heike; Cameron, Elissa Z.; Raihani, N.J.; Bennett, Nigel Charles (Wiley, 2014-10)
    Sex allocation theory predicts that mothers benefit from adjusting the sex ratio of their offspring in relation to their offspring's future reproductive success. In cooperative breeders, parents are expected to bias the ...
  • Social dispersal but with philopatry reveals incest avoidance in a polygynous ungulate 
    Linklater, Wayne L.; Cameron, Elissa Z. (Elsevier, 2009)
    The function of dispersal is best examined in species, such as horses, Equus caballus, where breeding groups’ ranges may overlap entirely such that social and spatial dispersal are decoupled. We hypothesized that mares ...
  • Social networks of spotted hyaenas in areas of contrasting human activity and infrastructure 
    Belton, L.E. (Lydia); Cameron, Elissa Z.; Dalerum, Fredrik (Elsevier, 2018-01)
    In group-living animals, the structure of social interactions among group members can have important consequences for individual fitness. Changes in resource abundance can influence social interactions with an expected ...