نتایج جستجو برای: cheetah

تعداد نتایج: 468  

2016
Chunlei Wang Shigang Wang

A cheetah model is built to mimic real cheetah and its mechanical and dimensional parameters are derived from the real cheetah. In particular, two joints in spine and four joints in a leg are used to realize the motion of segmented spine and segmented legs which are the key properties of the cheetah bounding. For actuating and stabilizing the bounding gait of cheetah, we present a bioinspired c...

Journal: :The Journal of experimental biology 2012
Penny E Hudson Sandra A Corr Alan M Wilson

The cheetah and racing greyhound are of a similar size and gross morphology and yet the cheetah is able to achieve a far higher top speed. We compared the kinematics and kinetics of galloping in the cheetah and greyhound to investigate how the cheetah can attain such remarkable maximum speeds. This also presented an opportunity to investigate some of the potential limits to maximum running spee...

Journal: :PloS one 2015
Eléanor Brassine Daniel Parker

Camera trapping studies have become increasingly popular to produce population estimates of individually recognisable mammals. Yet, monitoring techniques for rare species which occur at extremely low densities are lacking. Additionally, species which have unpredictable movements may make obtaining reliable population estimates challenging due to low detectability. Our study explores the effecti...

Journal: :The Onderstepoort journal of veterinary research 1993
J A Spencer

An extensive genetic and physiological analysis of the cheetah by O'Brien et al. (1983; 1985; 1987) indicated that the cheetah showed monomorphism at the major histocompatability complex. This led O'Brien (1985) to propose that the cheetah suffered from an immunodeficiency and was highly susceptible to diseases. It was therefore decided to investigate cell-mediated and humoral immune responses ...

2001
Anthony P. Russell Harold N. Bryant

The cheetah Acinonyx jubatus is the most cursorial felid and has been described as somewhat dog-like in both the shape and the diminished degree of retraction of the claws. In this study we evaluate and investigate the osteological correlates associated with claw retraction in the cheetah through a comparison of the morphology of its middle phalanges with those of other felids and of the wolf C...

Journal: :Biology of reproduction 2011
Kimberly A Terrell David E Wildt Nicola M Anthony Barry D Bavister S P Leibo Linda M Penfold Laurie L Marker Adrienne E Crosier

Compared with the normospermic domestic cat, sperm metabolic function is compromised in the teratospermic cat and cheetah, but the pathway(s) involved in this deficiency are unknown. Glycolysis is essential for sperm motility, yet it appears to function normally in spermatozoa of either species regardless of structural morphology. We conducted a comparative study to further understand the mecha...

2015
Hanlie EK Winterbach Christiaan W Winterbach Lorraine Boast Rebecca Klein Michael MJ Somers Hanlie E. K. Winterbach Christiaan W. Winterbach Hanlie E. K Winterbach

Prey availability and human-carnivore conflict are strong determinants that govern the spatial distribution and abundance of large carnivore species and determine the suitability of areas for their conservation. For wide-ranging large carnivores such as cheetahs (Acinonyx jubatus) suitable conservation areas beyond protected area boundaries are crucial to effectively conserve them both inside a...

2015
Farid Belbachir Nathalie Pettorelli Tim Wacher Amel Belbachir-Bazi Sarah M. Durant

Deserts are particularly vulnerable to human impacts and have already suffered a substantial loss of biodiversity. In harsh and variable desert environments, large herbivores typically occur at low densities, and their large carnivore predators occur at even lower densities. The continued survival of large carnivores is key to healthy functioning desert ecosystems, and the ability to gather rel...

2015
Hanlie E.K. Winterbach Christiaan W. Winterbach Lorraine K. Boast Rebecca Klein Michael J. Somers Sara Varela

Prey availability and human-carnivore conflict are strong determinants that govern the spatial distribution and abundance of large carnivore species and determine the suitability of areas for their conservation. For wide-ranging large carnivores such as cheetahs (Acinonyx jubatus), additional conservation areas beyond protected area boundaries are crucial to effectively conserve them both insid...

2000
M. L. Gorman Tiziano Londei

Both the behavioural and the morphological analyses confirm the special role of the dewclaw in the cheetah: a strong hook to stop running animals by using the energy of the victim itself. However, this would hardly be an explanation for the rather large dewclaw in the puma. The present finding of the puma as an intermediate between the cheetah and other large felids for dewclaw size, supports t...

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