Lineage loss in Serengeti cheetahs: Consequences of high reproductive variance and heritability of fitness on effective population size

Article Abstract:

Lineage extinction in Serengeti cheetahs was examined and it was observed that 76% of matrilines were lost over a 25-year period. Lineage loss in cheetahs was nonrandom because only few families are responsible for production of future breeders. N (sub e) for cheetahs were calculated, taking into account fluctuating population size, unequal sex ratio, non-Poisson distribution of reproductive success and heritability of fitness.

Tanzania, Analysis, Environmental aspects, Reproduction (Biology), Reproduction, Cheetahs, Serengeti National Park, Tanzania

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A critical review of home range studies

Article Abstract:

Home range studies are analyzed in order to assess what methods are employed and how results are reported. The home range reporting is inadequate for reproducing studies and they are often reported and analyzed using inappropriate methods, which might produce spurious results.

United States, Science & research, Research, Methods, Evaluation, Home range, Ecological research

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