Results 241 to 250 of about 83,949 (294)

Continental-scale drivers of soil microbial extracellular polymeric substances. [PDF]

Nat Commun
Shi K, Zheng Q, Wang B, Noll L, Zhang S, Hu Y, Ruan H, Wanek W.   +7 more
europepmc   +1 more source

From currents to water masses: fine-scale insights into microbial biogeography in the Kuroshio-Oyashio Extension region. [PDF]

Appl Environ Microbiol
Huang R, Zhang Y, Han L, Liu R, Zhai X, Zeng K, Song G, Zhang H, Yao P, Chen Z, Liu J, Zhang X-H.   +11 more
europepmc   +1 more source

Seasonal and diel environment effects on host-seeking behaviour in the European tick vector, Ixodes ricinus

Noll M, Wall R, Makepeace BL, Rose Vineer H.   +3 more
europepmc   +1 more source

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Adaptive Line Transect Sampling

Biometrics, 2002
Adaptive line transect sampling offers the potential of improved population density estimation efficiency over conventional line transect sampling when populations are spatially clustered. In adaptive sampling, survey effort is increased when areas of high animal density are located, thereby increasing the number of observations.
J H, Pollard, D, Palka, S T, Buckland
openaire   +4 more sources

Line Transect Sampling from a Curving Path

Biometrics, 2001
Cutting straight line transects through dense forest is time consuming and expensive when large areas need to be surveyed for rare or highly clustered species. We argue that existing paths or game trails may be suitable as transects for line transect sampling even though they will not, in general, run straight.
L, Hiby, M B, Krishna
openaire   +4 more sources

Line Transect Sampling in Small and Large Regions

Biometrics, 2005
SummaryMelville and Welsh(2001,Biometrics57,1130–1137) consider an approach to line transect sampling using a separate calibration study to estimate the detection functiong. They present a simulation study contrasting their results with poor results from a traditional estimator, labeled the “Buckland” estimator and referenced toBuckland et al.(1993 ...
Rachel M, Fewster, Jeffrey L, Laake, Stephen T, Buckland   +2 more
openaire   +4 more sources

Perpendicular Distance Models for Line Transect Sampling

Biometrics, 1985
Perpendicular distance line transect models are examined to assess whether any single model can provide a general procedure for analysing line transect data. Of the two-parameter models considered, the hazard-rate model appears promising, whereas the exponential power series and exponential quadratic models do not.
Stephen Buckland
openaire   +5 more sources

A Semiparametric Model for Line Transect Sampling

Communications in Statistics - Theory and Methods, 2006
This paper introduces an appealing semiparametric model for estimating wildlife abundance based on line transect data. The proposed method requires the existence of a parametric model and then improves the estimator using a kernel method. Properties of the resultant estimator are derived and an expression for the asymptotic mean square error (AMSE) of ...
Omar Edous‬‎
openaire   +3 more sources