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All are facing a high risk of extinction in the wild. Preventative measures are being taken to save the rhino from becoming extinct. Rhino horns are made of keratin protein, which is similar to human fingernails. Rhinos use their horns for digging for water, breaking branches, foraging, maternal care and defending themselves and their young from predators.
While the rhino horn is useful to the rhino, dehorning a rhino who is living on a conservation has been an effective procedure that is used to protect the rhino from poachers. The dehorning operation is performed by licensed veterinarians and physicians. D denied the importance of emotion.
Definition reflected a deeper emphasis on humanity. B destroy one-third to one-half of Europe's population. C seriously affect the economy. D bring about the end of the Hundred Years' War. Definition bring about the end of the Hundred Years' War. B efforts at greater unity between church and state. C widespread church criticism and weakened papal prestige. D the end of the Hundred Years' War. Definition widespread church criticism and weakened papal prestige. B outmoded older forms of combat with new technology.
D did not affect Frances system of feudal allegiances. Term In Boccaccio's Tale of Filippa the defendant of the trial argues that the law on adultery A lacks the provision that the act must be witnessed. B is unfair to the party outside the marriage contract. C was passed without the consent of women.
D provides a penalty that is cruel and unusual. Definition was passed without the consent of women. Term The technique that revolutionized Giotto's painting style featured A a new emphasis on line. B the use of light and shade to model form. C the introduction of symbolic gestures. D detailed realism in landscape settings.
Definition the use of light and shade to model form. Term The Renaissance was born in which of the following cities? Definition Florence. Term Cultural and political leadership for the early Renaissance was under the auspices of which of the following families?
Definition the Medici. Future rhino populations could behave differently to how animal behaviourists know them to currently behave. There could be a reduced survival rate of calves as a result of not having a biological mother to pass on those priceless parenting lessons. Aside from the not so obvious behavioural changes in future generations, ecosystems may also suffer. Nature is interconnected and so any event is likely to have a domino effect in the same way rhino poaching is likely to affect the ecosystems that rhinos share with other species.
Table 1 Carcass detection rates estimated for , , and using assigned ages of carcasses i. Fig 3. Availability bias for rhinos in Kruger Natonal Park. Fig 4. Population trends for rhinos in Kruger National Park. Table 2 Landscape-specific estimates and densities of black and white rhino recorded in Kruger National Park during White rhino demography We sampled , , , and white rhinos for which we assigned ages and sexes.
Fig 5. Estimated vital rates for white rhinos noted in Kruger National Park. Fig 6. Estimated annual population growth rates as a function of population size. Table 3 Explanatory capabilities of previous year rainfall and population size for variance in births and deaths as indicated by model selection procedures. Future trends If poaching trends noted by continues, the white rhino population in Kruger will decline to between and individuals by , the worst case scenario that we considered Table 4.
Table 4 Predicted white rhino population estimates for under four different scenarios for poaching trends. Estimate LCL UCL Present rise in poaching rates continues Present rise in poaching rates halved Present rate of poaching sustained Present rate of poaching halved Conclusions Our results illustrated variable responses of black and white rhinos to variable ecological constraints as well as anthropogenic influences induced by managers and poachers. Acknowledgments We are grateful for assistance provided by Charles Thompson and Frank Molteno as pilots.
Data Availability Data are available from SANParks researchers who meet the criteria for access to confidential data and having agreed to a data use agreement. References 1. Ecosystems 11 : — Thomas R Surge in rhinoceros poaching in South Africa.
Pachyderm 53 : 7— S Afr J Wildl Res 41 : — Carruthers J Wilding the farm or farming the wild: The evolution of scientific game ranching in South Africa from the s to the present.
Trans R Soc S Afr 63 — Ehrenfeld JG Defining the limits of restoration: The need for realistic goals. Restor Ecol 8 : 2—9. Pienaar DJ The landscape preference and horn attributes of the white rhinoceros Ceratotherium simum simum Burchell, in the Kruger National Park.
University of Pretoria: MSc-Thesis. The Kruger experience: ecology and management of savanna heterogeneity. Washington: Island Press; pp. Koedoe 26 : 9— Freeman and Company. Caughley G Bias in aerial survey. J Wildl Manage 38 : — S Afr J Sci 98 : — Jolly GM Sampling methods for aerial censuses of wildlife populations.
East Afr Agric For J 34 : 46— J Appl Ecol 38 : — Caughley G Sampling in aerial survey. J Wildl Manage 41 : — Afr J Ecol 40 : — Low-level aerial survey techniques.
S Afr J Wildl Res 39 : — Ecosystem function in savannas: Measurement and modeling at landscape to global scales. Han J, Morag C The influence of sigmoid function parameters on the speed of backpropagation learning. Wildl Res 35 : — J Zool : — J Wildl Manage 72 : — Jones ML Longevity of ungulates in captivity. Int Zoo Yearbook 32 : — Eberhardt LL Using age structure data from changing populations.
J Appl Ecol 25 : — Hood GM Poptools. Sign In. Get Flush from Amazon. View the Study Pack. View the Lesson Plans. Order our Flush Study Guide. Plot Summary. Chapter 1.Start studying Art Chapter 1 Quiz Questions. Learn vocabulary, terms, and more with flashcards, games, and other study tools.