Enclosure size in captive wild mammals: A comparison between UK zoological collections and the wild
A comparison was made between the average enclosure size of a random sample of mammals lept during the years 2000-2001in a random sample of UK zoological collections and the minimum home range of these taxa in the wild. Allometric laws were used to estimate the home range area, while direct observation from videotaped visits to […]
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. […]
Organization of cholinergic, putative catecholaminergic and serotonergic nuclei in the diencephalon, mibrain and pons of sub-adult male giraffes
The current study describes the nuclear organization and neuronal morphology of the cholinergic, putative catecholaminergic and serotonergic systems within the diencephalon, midbrain and pons of the giraffe using immunohistochemistry for choline acetyltransferase, tyrosine hydroxylase and serotonin. The giraffe has a unique phenotype (the long neck), a large brain (over 500 g) and is a non-domesticated […]
Abundance and distribution of mammals in Katavi National Park, Tanzania
Ground transects were used to determine densities of 24 larger mammals in Katavi National Park. The Park consists of miombo woodland habitat and two seasonal lakes. Mammalian biomass was extremely high due primarily to large numbers of buffalo. The highest mammal densities were found around Lake Chada to the southeast of the Park. Contrary to […]
Gaits in mammals
In recent years there has been a great deal of published work on movements of various mammals, in particular, studies on the bone morphology and range of movements of joints, the muscle structure and places of muscle attachment, the physiology of muscle performance, the peculiarities of species as mechanical systems and the specific leg movements […]