Giraffa camelopardalis, Giraffe Assessment by: Muller, Z. et al.
Taxonomic Notes: The IUCN SSC Giraffe and Okapi Specialist Group (GOSG) currently recognizes a single species, Giraffa camelopardalis. Nine subspecies of Giraffes are currently recognized (Dagg 2014), although some authorities dispute this taxonomic classification (e.g., Groves and Grubb 2011). Several subpopulations of Giraffe, resident in northern Botswana, northwest Zimbabwe, northeastern Namibia and southwestern Zambia, are […]
Using while moving: HCI issues in fieldwork environments
“Using while moving” is the basic ability fieldwork users require of a mobile computer system. These users come from a wide range of backgrounds but have in common an extremely mobile and dynamic workplace. We identify four specific characteristics of this class of users: dynamic user configuration, limited attention capacity, high-speed interaction, and context dependency. […]
Ecology of desert-dwelling giraffe Giraffa camelopardalis angolensis in northwestern Namibia
The population size and range of giraffe Giraffa camelopardalis have been greatly reduced in Africa in the past century, resulting in geographical isolation of local populations and some herds surviving at the edge of the species’ preferred range. Numerous factors have contributed to these declines, but historical analysis indicates that habitat loss and fragmentation, human […]
Dietary innovations spurred the diversification of ruminants during the Caenozoic
Global climate shifts and ecological flexibility are two major factors that may affect rates of speciation and extinction across clades. Here, we connect past climate to changes in diet and diversification dynamics of ruminant mammals. Using novel versions of Multi-State Speciation and Extinction models, we explore the most likely scenarios for evolutionary transitions among diets […]
The Giraffe Biology, Ecology, Evolution and Behaviour (Book)
In one form or another, giraffes have been around for a very long time. And so has Homo sapiens. The interaction between giraffes and humans starts way back in prehistory, and rock art (paintings and engravings) is found all over Africa from Morocco, Algeria and Libya in the north, through Ethiopia, Somalia, Kenya and Tanzania […]
Evolution, Ecology and Biochronology of herbivore associations in Europe during the last 3 million years
A study of the evolution of the herbivore community during the last three million years in Europe is proposed in this paper. The study includes the analysis of evolutionary changes of systematic and ecological structure (taxa diversity, body mass, diet specializations) related both with eco-physiological and environmental factors. Several biochronological phases can be envisioned. The […]
Ecology of the giraffe in Tsavo East National Park, Kenya
The decrease in woody vegetation in Tsavo National Park has probably had adverse effects on woodland-adapted herbivores, including the giraffe (Girafa camelopardalis). In an ecological study we attempted to assess this species’ density, habitat preference and utilization, and population dynamics, using mainly road strip counts and identification of individual animals. Population structure varied seasonally and […]
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 […]
An automated program to find animals and crop photographs for individual recognition
Detailed data on individual animals are critical to ecological and evolutionary studies, but attaching identifying marks can alter individual fates and behavior leading to biases in parameter estimates and ethical issues. Individual-recognition software has been developed to assist in identifying many species from non-invasive photographic data. These programs utilize algorithms to find unique individual characteristics […]
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 […]