Filters: Tags: biological sampling (X)412 results (10ms)
Riparian vegetation data used for comparing sampling methods along the Colorado River, Grand Canyon, Arizona
These data were collected as part of a methodologial comparison for collecting riparian vegetation data. Two common methods for collecting vegetation data were used: line-point intercept and 1m2 ocular quadrats (visual cover estimates). At each site and transect, both methods were used to collect cover and composition data by four different observers. The same transects and quadrats were utilized for both methods and all observers. Field data collected included percent cover for total living foliar cover, each plant species encountered, litter, dead plant material that is still standing, and ground cover features (biological soil crust, rock, sand, and fine soil particles). Line-point intercept data were collected...
Comparison of habitat composition and cutthroat trout abundance at two flows in small mountain streams
Biostatistical fish sampling at the Mar del Plata port. Mackerel (Scomber japonicus). 1986-1991 Period
Age- and sex-specific behaviour in harbour seals Phoca vitulina leads to biased estimates of vital population parameters
Predation by piscivorous fish on age-0 fish: spatial and temporal variability in a biomanipulated lake (Bautzen reservoir, Germany)
Monitoring of Hochstetter's frog (Leiopelma hochstetteri) populations near Golden Cross Mine, Waitekauri Valley, Coromandel
Regional differences in rates and patterns of North American inland lake invasions by zebra mussels (Dreissena polymorpha)
AUSRIVAS: operator sample processing errors and temporal variability - implications for model sensitivity.