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Can a Top Predator Persist After One of the World's Largest Mining Dam Failures? Occupancy Dynamics of the Neotropical Otter in Brazil's Paraopeba River. [PDF]

Ecol Evol
Massara RL, Santos PM, Stumpp R, Costa AS, Rodrigues JR, Meiga AYY, Solar RRC, Moura MN, Dornas T, Cäsar C, Paglia A.   +10 more
europepmc   +1 more source

Long-Term Grazing Exclusion Reveals Taxonomic and Functional Reorganization of Plant Communities in an Insular Mediterranean Geopark. [PDF]

Plants (Basel)
Kakampoura V, Zevgolis YG, Zouros N, Panitsa M, Dimitrakopoulos PG.   +4 more
europepmc   +1 more source

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Estimating the Encounter Rate Variance in Distance Sampling

Biometrics, 2009
SummaryThe dominant source of variance in line transect sampling is usually the encounter rate variance. Systematic survey designs are often used to reduce the true variability among different realizations of the design, but estimating the variance is difficult and estimators typically approximate the variance by treating the design as a simple random ...
David Borchers, Rachel Fewster, Len Thomas   +2 more
exaly   +4 more sources

Field modeling with sampled distances

Computer-Aided Design, 2006
Traditional mesh-based approaches to the modeling and analysis of physical fields within geometric models require some form of topological reconstruction and conversion in the mesh generation process. Such manipulations tend to be tedious and error-prone manual processes that are not easily automated.
Michael Freytag, Vadim Shapiro, Igor G. Tsukanov   +2 more
openaire   +1 more source

Distance functions for matching in small samples

Computational Statistics & Data Analysis, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
E. Dettmann, C. Becker, C. Schmeißer
openaire   +1 more source

Advanced Distance Sampling

2004
Abstract This advanced text focuses on the uses of distance sampling to estimate the density and abundance of biological populations. It addresses new methodologies, new technologies and recent developments in statistical theory and is the follow up companion to Introduction to Distance Sampling (OUP, 2001).
S T Buckland, D R Anderson, K P Burnham, J L Laake, D L Borchers, L Thomas   +5 more
openaire   +1 more source

Revisiting adaptively sampled distance fields

Proceedings XIV Brazilian Symposium on Computer Graphics and Image Processing, 2002
Implicit surfaces are a powerful shape description for many applications in computer graphics. An implicit surface is defined by a function f:R/sup 3//spl rarr/R as the set of points satisfying f(p)=0. Implicit representation becomes more effective when f is a signed distance function, i.e., when |f| gives the distance to the closest point on the ...
Luiz Henrique de Figueiredo, Luiz Velho 0001, João Batista S. de Oliveira   +2 more
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Estimating Distance Sampling Detection Functions When Distances Are Measured With Errors

Journal of Agricultural, Biological, and Environmental Statistics, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Borchers, David, Marques, Tiago, Gunnlaugsson, Thorvaldur, Jupp, Peter   +3 more
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Some Developments in 'Distance Sampling'

Biometrics, 1967
Frequency distributions of the distance from a randomly located point to the nearest (or nth nearest) individual plant or animal are described. Results applicable to systematic and contagious (negative binomial) distributions are derived as supplements to the considerable existing literature on randomly distributed individuals.
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