Results 121 to 130 of about 15,111 (152)
Assessing the Power of the Point-Line Transect to Monitor Changes in Plant Basal Cover [PDF]
Journal of Range Management, 1995 To assess the power of point data (collected systematically at each meter along a permanently-situated, 100-m line transect) to detect actual changes in plant basal cover, we developed a computational approach whereby a simplified shortgrass steppe community was spatially simulated on a computer screen. Cover was then reduced using a random disturbance
John E Mitchell, Charles D Bonham
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Two-phase approaches to point and transect relascope sampling of downed logs
Canadian Journal of Forest Research, 2001Point relascope sampling and transect relascope sampling were recently proposed as methods for the inventory of downed coarse woody debris. By only counting logs with a relascope device, the total length squared (with point relascope sampling) or the total length (with transect relascope sampling) of downed logs in an area can be estimated.
Göran Stahl +2 more
exaly +3 more sources
Lateral dynamic balance in the Sandy Hook to Rockaway Point Transect
Estuarine and Coastal Marine Science, 1978Abstract Currents associated with the residual nontidal flow through the Sandy Hook to Rockaway Point Transect exhibit considerable vertical and lateral structure including a two-layer estuarine flow pattern over much of the Transect and inflow to New York harbor at all depths near Rockaway Point.
Brian Edward Doyle, Robert E. Wilson
exaly +2 more sources
The estimation of diversity indexes by using stratified allocations of plots, points or transects
Environmetrics, 2015The estimation of diversity indexes is considered when species abundance is estimated by means of plots, points or transects placed onto the study region in accordance with probabilistic schemes. Under uniform random sampling–that is when plots, points or transects are uniformly and independently located on the study region–the consistency and the ...
BARABESI, LUCIO +4 more
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A step-point transect technique for estimation of kangaroo populations in sheep-grazed paddocks
The Rangeland Journal, 2002This paper presents an empirical and theoretical evaluation of a step-point transect procedure for estimating the relative and absolute abundance of kangaroos in sheep-grazed rangeland paddocks. The method assumes that the proportion of kangaroos in the total (sheep + kangaroo) population can be estimated from their proportional representation in the ...
Ronald B. Hacker +2 more
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Journal of Hydrology, 2019
Abstract Determining the bathymetric properties of a river, lake or reservoir is important for many reasons because it identifies location of sections with sedimentation or erosion which indicate the key processes and biophysical habitat status. This study used observational data of a 5 km section of the Danube River (transformed into a reservoir ...
Daniel C. Diaconu +4 more
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Abstract Determining the bathymetric properties of a river, lake or reservoir is important for many reasons because it identifies location of sections with sedimentation or erosion which indicate the key processes and biophysical habitat status. This study used observational data of a 5 km section of the Danube River (transformed into a reservoir ...
Daniel C. Diaconu +4 more
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Correction for Slope in Point and Transect Relascope Sampling of Downed Coarse Woody Debris
Forest Science, 2002Abstract In this article, the effect of sloping terrain on estimates in point and transect relascope sampling (PRS and TRS, respectively) is studied. With these inventory methods, a wide angle relascope is used either from sample points (PRS) or along survey lines (TRS).
Stahl, Goran +3 more
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TWO-STAGE SEQUENTIAL POINT TRANSECT SAMPLING
Advances and Applications in Statistics, 2022Analyn C. Malines +1 more
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Point sampling strategies for estimating coverage from benthic video transects
Environmetrics, 2004AbstractPoint intercept techniques are commonly used to estimate the proportion of area covered by an organism or substrate. Although many different methods of choosing point co‐ordinates have been suggested, some more suitable than others, this article examines three common and one novel point allocation strategy in the context of estimating the ...
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Uniformly most powerful unbiased test for shoulder condition in point transect sampling
Statistical Papers, 2011zbMATH Open Web Interface contents unavailable due to conflicting licenses.
BORGONI, RICCARDO, QUATTO, PIERO
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