[PDF] Top 20 Line transect sampling of primates : can animal to observer distance methods work?
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Line transect sampling of primates : can animal to observer distance methods work?
... All of the above comparisons are based on studies where true density is established by studying a small number of habituated groups, and estimating the size of their home range. There are several reasons why there might ... See full document
29
Design and analysis of line transect surveys for primates
... Line transect sampling is a ‘distance sampling’ method (Buckland et ...abundance can have substantial bias. Line transect surveys of primates often ignore ... See full document
28
Bayesian methods for hierarchical distance sampling models
... the distance sampling counts that incorporates a component corresponding to the detection function, thus allowing for undetected animals on the surveyed strip (line transects) or circular plot (point ... See full document
32
Methods for investigating measurement error in cetacean line transect surveys
... inaccurate distance estimates (Schweder, 1997), but these post-hoc analytical approaches will always be less robust than actually obtaining accurate measurements in the first ...of distance using the naked ... See full document
8
Double observer line transect surveys with Markov modulated Poisson process models for animal availability
... likelihood methods for line transect surveys in which animals go undetected at distance zero, either because they are stochastically unavailable while within view or because they are missed ... See full document
10
Distance sampling detection functions : 2D or not 2D?
... MRDS methods that assume no unmodelled heterogeneity (no variables affecting detection probability of the two sets of observers that are not accounted for in the ...MRDS methods that relax the assumption of ... See full document
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ESTIMATING MOOSE ABUNDANCE IN LINEAR SUBARCTIC HABITATS IN LOW SNOW CONDITIONS WITH DISTANCE SAMPLING AND A KERNEL ESTIMATOR
... a line-transect distance sampling approach as an alternative to estimate moose abundance in this ...program Distance to a nonparametric kernel-based estimator not previously used for ... See full document
26
Model based distance sampling
... Shipboard line transect surveys were carried out, during which sightings and environmental covariates were ...the methods of Hedley and Buckland ... See full document
18
Double observer line transect methods : levels of independence
... Distance sampling (Buckland et ...estimating animal abundance. In line transect sampling, an observer travels along each of a number of lines, laid out according to some ... See full document
27
The effect of animal movement on line transect estimates of abundance
... Line transect sampling is a distance sampling method for estimating the abundance of wild animal ...location. Animal movement independent of the transect and ... See full document
15
Adaptive distance sampling
... the methods to point transect surveys needs further work, and in its current fomi may offer less benefit than for line ...the line transect ... See full document
215
Estimating bird abundance : making methods work
... the line or point, or because the detection probability may drop so quickly that sample size for standard distance sampling is ...birds can be attracted in to a point, then a larger area ... See full document
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Line-transect distance sampling compared with fixed-width strip-transect counts for assessing tomtit (Petroica macrocephala) population trends
... Abstract: Distance sampling and fixed-width strip-transect counts were compared as methods for estimating population trends of the tomtit (Petroica macrocephala) from late September / early ... See full document
6
Workshop on new developments in cetacean survey methods
... current methods for towed acoustics also do not account for animal movement, which is likely to be an issue (as the array is on the back of the ship, and animals may have already responded to the ... See full document
96
Remote Sensing, Line-intercept Sampling for Tarnished Plant Bugs (Heteroptera: Miridae) in Mid-south Cotton
... survey methods, especially when hundreds to thousands of acres are ...sensing methods was used to define homogenous management units to sample mirid populations in ...units can be best defined by ... See full document
11
Ecology and conservation of koki (Prosopeia tabuensis) in Tonga : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Ecology at Massey University, Palmerston North, New Zealand
... The mean number of Koki seen on the six transect lines using the Point Count and the Line Transect methods, March - October 2000.. Transect lines ranked from least to most Koki detected [r] ... See full document
28
Influence of transect length and downed woody debris abundance on precision of the line-intersect sampling method
... each transect length–location ...of transect length and total DWD volume (pre- dictor variables, unique to each location) on the coefficient of variation (CV) of these ...340-m transect length for ... See full document
10
Methods for estimating sperm whale abundance from passive acoustic line transect surveys
... The observed data are actually pairs of arrival times of clicks at the two- element acoustic array. The observed angle of a click from the acoustic array axis is calculated from the difference Δ t , between the arrival ... See full document
16
An Adaptation of Kernel Density Estimation for Population Abundance using Line Transect Sampling When the Shoulder Condition is Violated
... in line transect ...perpendicular distance x 0 , inclines to be ...perpendicular distance is proposed for the kernel estimator when the shoulder condition is ... See full document
5
A Comparison of the Charting, Line Intercept, and Line Point Methods of Sampling Shrub Types of Vegetation.
... Variation analysis and sample size calculations to obtain means within certain specified limits indicate that both transect methods were superior to chart- ing, Un[r] ... See full document
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