1. Understanding the interaction among predators and between predation and climate is critical to understanding the mechanisms for compensatory mortality. We used data from 1999 radio-marked neonatal… (More)
All Australian land mammals, reptiles, and birds weighing more than 100 kilograms, and six of the seven genera with a body mass of 45 to 100 kilograms, perished in the late Quaternary. The timing and… (More)
This study investigated the intelligibility of native and Mandarin-accented English speech for native English and native Mandarin listeners. The word-final voicing contrast was considered (as in… (More)
During 1990–2000, I investigated patterns of fall migration and harvests of the Jackson elk herd. Specifically, I compared the timing of fall migration of the 2,500–4,500 elk (Cervus elaphus) that… (More)
A number of physical and psychological changes occur as a result of the normal aging process. These changes often result in an increase in the time subjects require to perform various motor (and… (More)
Acoustic measurements have shown that children's segment durations are often longer than those of adults. It is unclear from previous research, however, why this occurs. One possibility is that… (More)
Pre-meaningful vocalizations produced by nine normally developing and 10 Down's syndrome infants were recorded as part of a longitudinal study of language development. The recordings were… (More)
A number of cross-sectional, acoustic studies have found that young children's speech segments tend to be longer and more variable than those of older children and adults. However, very little… (More)