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Hypotheses about chimpanzee social behavior, phylogeography, and evolution were evaluated by noninvasive genotyping of free-ranging individuals from 20 African sites. Degrees of relatedness among individuals in one community were inferred from allele-sharing at eight nuclear simple sequence repeat (SSR) loci. Males are related on the order of half-siblings,(More)
Tropical forests continue to be felled and fragmented around the world. A key question is how rapidly species disappear from forest fragments and how quickly humans must restore forest connectivity to minimize extinctions. We surveyed small mammals on forest islands in Chiew Larn Reservoir in Thailand 5 to 7 and 25 to 26 years after isolation and observed(More)
The present study was undertaken to determine if a model accounting for reaction time (RT) on the basis of the EEG alpha rhythm and refractory period (RP) could predict RT in young and old adult subjects. Ten male university undergraduates and ten community residing males over the age of 65 had resting EEG recorded at right and left occipital sites. Mean(More)
Hybrid zones involving Pseudophryne (Anura: Leptodactylidae) provide direct evidence for the operation of postmating reproductive isolating mechanisms in animals in a natural situation. Significant introgression is prevented by hybrid inviability but there is no evidence for the reinforcement of premating isolating mechanisms. These parapatric hybrid zones(More)
ndustrial and commercial facili-I ties managers are turning to soft-the program on the basis of information the user has entered about Fa c il i ties ma n age rs " ware tools t o assist with t h e the load. If a user's choice is in con-design and maintenance of build-flict with the program's, the user is can quickly and-I ing power distribution networks.(More)