Jarrett J. Barber

Learn More
The role of time in ecology has a long history of investigation, but ecologists have largely restricted their attention to the influence of concurrent abiotic conditions on rates and magnitudes of important ecological processes. Recently, however, ecologists have improved their understanding of ecological processes by explicitly considering the effects of(More)
Cavitation of xylem elements diminishes the water transport capacity of plants, and quantifying xylem vulnerability to cavitation is important to understanding plant function. Current approaches to analyzing hydraulic conductivity (K) data to infer vulnerability to cavitation suffer from problems such as the use of potentially unrealistic vulnerability(More)
A quasi-experimental research design found evidence of a weak main effect of the first stage of Australia's media campaign against drug abuse. Although there was no evidence of behavioral or perceptual changes, there was an increase in support for more restrictive antidrinking and antismoking legislation. This effect was enhanced in respondents who were(More)
Identifying the ecological dynamics underlying human-wildlife conflicts is important for the management and conservation of wildlife populations. In landscapes still occupied by large carnivores, many ungulate prey species migrate seasonally, yet little empirical research has explored the relationship between carnivore distribution and ungulate migration(More)
The concentration detection threshold (CDT) is the concentration of particles in solution beyond which a (serial dilution) assay detects particle presence. By our account, CDTs typically are not estimated but are fixed at some value. Setting a CDT to zero ( $$d=0$$ d = 0 ) implies perfect detection, a common assumption, and setting $$d>0$$ d > 0 gives(More)
  • 1