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The effect of prey abundance and foraging tactics on the population dynamics of a social, territorial carnivore, the spotted hyena
It is demonstrated that hyenas in the Ngorongoro Crater, Tanzania, redistributed themselves from less profitable to more profitable areas, even when this required them to undertake foraging trips to areas beyond their clan territory boundary, or required normally philopatric females to emigrate.
The response of spotted hyaenas to long‐term changes in prey populations: functional response and interspecific kleptoparasitism
This study is the first to demonstrate both a functional response of a predator to changes in the size of prey populations and an associated change in foraging behaviour of the predator.
Cheetah Paradigm Revisited: MHC Diversity in the World's Largest Free-Ranging Population
Compared with other mammalian species including felids, cheetahs showed low levels of MHC diversity, but this does not seem to influence the immunocompetence of free-rangingCheetahs in Namibia and contradicts the previous conclusion that the cheetah is a paradigm species of disease vulnerability.
Reproductive history and absence of predators are important determinants of reproductive fitness: the cheetah controversy revisited
- B. Wachter, S. Thalwitzer, H. Hofer, Johann Lonzer, T. Hildebrandt, R. Hermes
- Environmental Science
- 1 February 2011
It is shown that reproductive activity and health of cheetah females is determined by reproductive history and age rather than innate rhythms, captive stress, or lack of genetic diversity, and that postemergence cub survival under natural conditions in a predator-free habitat is high.
Female mate-choice drives the evolution of male-biased dispersal in a social mammal
It is shown that male-biased dispersal in the spotted hyaena (Crocuta crocuta) most probably results from an adaptive response by males to simple female mate-choice rules that have evolved to avoid inbreeding.
Gut microbiomes of free‐ranging and captive Namibian cheetahs: Diversity, putative functions and occurrence of potential pathogens
The need to integrate ecological, genetic and pathogenic aspects to improve the comprehension of the main drivers of natural variation and shifts in gut microbial communities possibly affecting host health is emphasized.
Seroprevalences to Viral Pathogens in Free-Ranging and Captive Cheetahs (Acinonyx jubatus) on Namibian Farmland
- S. Thalwitzer, B. Wachter, H. Lutz
- Environmental ScienceClinical and Vaccine Immunology
- 1 February 2010
While free-ranging wild carnivores may be a source of pathogens, the distribution of seroprevalences across studies mirrored local human population density and factors associated with human habitation, probably reflecting contact opportunities with (nonvaccinated) domestic and feral cats and dogs.
Citizen science and wildlife biology: Synergies and challenges
Citizen science (CS) has evolved over the past decades as a working method involving interested citizens in scientific research, for example by reporting observations, taking measurements or…
Cheetahs have a stronger constitutive innate immunity than leopards
It is demonstrated that cheetahs have a higher constitutive innate but lower induced innate and adaptive immunity than leopards, suggesting immunocompetence of cheetah is higher than previously thought.