Does tooth wear influence ageing? A comparative study across large herbivores
We test whether the intensity of tooth wear influences the strength of actuarial senescence across species of large herbivores. We collected from the literature data on tooth wear in the wild (measured as the slope of the regression of log-transformed M1 crown height on age), longevity (measured as the age at which 90% of individuals […]
The Mammals of Nigeria
Distribution: scattered localities in northern Guinea, Sudan, and Sahel savanna zones; not recorded south of the Niger-Benue rivers in Nigeria (Happold 1969, 1978b) (Map 98). Localities: Benue-Pai river region (Lewis 1955); Chingurme-Duguma GR, Kambari GR (Hall 197 6); Falgoro GR (Henshaw and Child 1972); Lame GR (Hall 1976); Sambisa GR (Hall 1976). Old localities not […]
Placental morphology in African antelopes and giraffes
Delivered placentas from nineteen antelopes and five giraffes and placentas from five antelopes dead during parturition and eight antelopes dead during advanced pregnancy were morphologically examined. Placental length and weight, arrangement, number and size of cotyledons, and other features were recorded wherever the conditions of placentas permitted. Cotyledon rows corresponded to the caruncle rows on […]
Relationships between male giraffes’ colour, age and sociability
In species in which males signal competitive ability through secondary sexual traits, males with different levels of trait expression may adopt different reproductive tactics to maximize their reproductive success. In fission-fusion social systems, the most dominant males often roam widely in search of females in oestrus, and thus exhibit different patterns of sociability from subordinate […]
Season of birth affects juvenile survival of giraffe
Variation in timing of reproduction and subsequent juvenile survival often plays an important role in population dynamics of temperate and boreal ungulates. Tropical ungulates often give birth year round, but survival effects of birth season for tropical ungulate species are unknown. We used a population of giraffe in the Tarangire Ecosystem of northern Tanzania, East […]
Giraffe demography and population ecology
Population dynamics describe temporal change in population size and structure and the processes that contribute to that change. For conservation to succeed, it is critical that we are able to detect changes in population size and the demographic processes in the population, and also we must learn how to effect change in population size by […]
Management guidelines for the welfare of zoo animals – GIRAFFE.
Management guidelines for the welfare of zoo animals – GIRAFFE.
The Giraffe Husbandry Resource Manual
Giraffes have been kept in captive situations for hundreds of years. Nevertheless, it would be very difficult to describe a singular optimal situation for keeping giraffe, outside of their natural environment. Much of the information contained within will illustrate multiple situations where giraffe were managed successfully, to allow the reader to make husbandry decisions that […]
Giraffe Husbandry Manual
Husbandry manuals serve as a source of reference on the biology, maintenance, housing, health, behaviour, diet, breeding, restrain and transporting of animals held in captivity. They act as a major source of information for the species. The present information and experiences (both published and unpublished) together so that the knowledge of that particular species can […]
Migratory herds of wildebeests and zebras indirectly affect calf survival of giraffes
In long-distance migratory systems, local fluctuations in the predator–prey ratio can exhibit extreme variability within a single year depending upon the seasonal location of migratory species. Such systems offer an opportunity to empirically investigate cyclic population density effects on short-term food web interactions by taking advantage of the large seasonal shifts in migratory prey biomass. […]