Sampling design and bias in DNA‐based capture‐mark–recapture population and density estimates of grizzly bears
J Boulanger, BN McLELLAN, JG Woods… - The Journal of …, 2004 - Wiley Online Library
… Abstract: Over a 3-year period, we assessed 2 sampling designs for estimating grizzly bear
(Ursus arctos) population size using DNA capture–mark–recapture methods on a population …
(Ursus arctos) population size using DNA capture–mark–recapture methods on a population …
Density estimation of small‐mammal populations using a trapping web and distance sampling methods
… for direct density estimation that we call a apping web. Use of a trapping web design allows
ipture data to be considered as distance sampling ita, which is a type of plotless sampling. …
ipture data to be considered as distance sampling ita, which is a type of plotless sampling. …
Optimal importance-sampling density estimator
GL Ang, AHS Ang, WH Tang - Journal of engineering mechanics, 1992 - ascelibrary.org
… initial simulation (to obtain the samples used to construct the kernel sampling density) and
that from the simulation runs using the kernel sampling density. This estimator is found to be …
that from the simulation runs using the kernel sampling density. This estimator is found to be …
Sampling design and analytical advances allow for simultaneous density estimation of seven sympatric carnivore species from camera trap data
… densities of species with varied space use. Through simulations we found the hybrid design
facilitated density estimates … We implemented a hybrid camera design across a 1154-km 2 …
facilitated density estimates … We implemented a hybrid camera design across a 1154-km 2 …
Comparing clustered sampling designs for spatially explicit estimation of population density
JD Clark - Population Ecology, 2019 - Wiley Online Library
… little effect on the performance of density estimates (ie, RRMSE) except when excessively
wide spacing resulted in low numbers of detectors within the sampling area. Thus, RRMSE …
wide spacing resulted in low numbers of detectors within the sampling area. Thus, RRMSE …
Effect of sampling density and design on estimation of streambed attributes
… as a function of sampling density and sampling design: (1) … with sampling density for each
sampling design and attribute … returns” was evident for sampling densities greater than ∼24 …
sampling design and attribute … returns” was evident for sampling densities greater than ∼24 …
Efficient sample density estimation by combining gridding and an optimized kernel
… The proposed sample density estimation method is introduced in terms of its application
in gridding reconstruction, followed by descriptions of the constituent methods previously …
in gridding reconstruction, followed by descriptions of the constituent methods previously …
PARNI for importance sampling and density estimation
A van Hameren - arXiv preprint arXiv:0710.2448, 2007 - arxiv.org
… We present an aid for importance sampling in Monte Carlo … of its design, it can also be
used for density estimation, ie, for … one, so that PARNI can serve as a pure density estimator. …
used for density estimation, ie, for … one, so that PARNI can serve as a pure density estimator. …
A critique of density estimation from camera‐trap data
RJ Foster, BJ Harmsen - The Journal of Wildlife Management, 2012 - Wiley Online Library
… ) sample size and capture probability, 3) camera location and spacing, 4) the size of the study
area, and 5) ad hoc density estimation … intermediate step of estimating an effective trapping …
area, and 5) ad hoc density estimation … intermediate step of estimating an effective trapping …
Density estimation from complex surveys
DR Bellhouse, JE Stafford - Statistica Sinica, 1999 - JSTOR
… In order to develop kernel density estimates in finite population sampling, it is … sampling
design on the bias. In general terms each density estimate can be written as a weighted sample …
design on the bias. In general terms each density estimate can be written as a weighted sample …
相关搜索
- kernel density estimation
- camera trap data density estimation
- sampling methods density estimation
- importance sampling density estimation
- wildlife density estimation
- cross-validation in density estimation
- optimal sampling design
- capture mark sampling design
- transformations in density estimation
- field comparison density estimators
- density estimates unmarked populations
- nonparametric density estimation
- bandwidth selection density estimators
- field test density estimation
- trapping grid density estimation
- population density sampling designs