نتایج جستجو برای: vervet monkeys
تعداد نتایج: 22495 فیلتر نتایج به سال:
Uncoated procyclic culture forms of African trypanosomes were used in immunofluorescence and simple agglutination assays to detect antibodies in the sera of vervet monkeys infected with T. b. rhodesiense. Antibodies to procyclic surface antigens were found in sera from animals with active, untreated infections or sera taken soon after treatment with trypanocidal drugs. The antibodies were detec...
Sexual traits vary tremendously in static allometry. This variation may be explained in part by body size-related differences in the strength of selection. We tested this hypothesis with in two populations of vervet monkeys, using estimates of the level of condition dependence for different morphological traits as a proxy for body size-related variation in the strength of selection. In support ...
The ability of monkeys to attribute mental states such as ignorance to each other was examined in two experiments using four captive groups of Japanese and rhesus macaques, Macacafuscata and M. mulatta. In the first experiment, females were shown food or a predator, either in the presence of their offspring or alone, to determine whether they would attempt to alert ignorant offspring more than ...
We have investigated the pathogenicity of tsetse (Glossina pallidipes)-transmitted cloned strains of Trypanosoma brucei rhodesiense in vervet monkeys. Tsetse flies were confirmed to have mature trypanosome infections by xenodiagnosis, after which nine monkeys were infected via the bite of a single infected fly. Chancres developed in five of the nine (55.6%) monkeys within 4 to 8 days post infec...
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