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Methods for estimating the density and/or abundance of populations
Distance sampling is a widely used group of closely related methods for estimating the density and/or abundance of populations. The main methods are based
Distance_sampling
Distance between pixel centers in remote sensing
In remote sensing, ground sample distance (GSD) in a digital photo of the ground from air or space is the distance between pixel centers measured on the
Ground_sample_distance
Group of statistical methods
species. A variety of methods are used in abundance sampling: mark-recapture, plot sampling, distance sampling. Terrestrial and marine habitats require different
Abundance_estimation
Selection of data points in statistics
of the population. When sampling, statisticians aim towards collecting an unbiased group, and to do it judiciously. Sampling has lower costs and faster
Sampling_(statistics)
penguins in Antarctica. Most maritime surveys use strip transect and distance sampling to measure penguin species density; this is then extrapolated over
List of Sphenisciformes by population
List_of_Sphenisciformes_by_population
British statistician and professor
at the University of St Andrews. He is best known for his work on distance sampling, a widely used technique for estimating the size of animal populations
Stephen_Buckland
Distance between two statistical objects
statistical distance quantifies the distance between two statistical objects, which can be two random variables, or two probability distributions or samples, or
Statistical_distance
Statistical distance measure
later work is from 1927). R.C. Bose later obtained the sampling distribution of Mahalanobis distance, under the assumption of equal dispersion. It is a multivariate
Mahalanobis_distance
Path along which organisms are recorded
estimation method – Method for estimating a species population size Distance sampling – Methods for estimating the density and/or abundance of populations
Transect
Sufficiency theorem for reconstructing signals from samples
The Nyquist–Shannon sampling theorem, or the sampling theorem, is a theorem in the field of signal processing which serves as a fundamental bridge between
Nyquist–Shannon sampling theorem
Nyquist–Shannon_sampling_theorem
Method of sampling in biostatistics
biostatistics, line-intercept sampling (LIS) is a method of sampling elements in a region whereby an element is sampled if a chosen line segment, called
Line-intercept_sampling
Methods for measuring wildlife populations include mark and recapture, distance sampling, and examining a harvest. Biologists who survey wildlife populations
Wildlife_population
Survey sampling method
Quota sampling is a method for selecting survey participants that is a non-probabilistic version of stratified sampling. In quota sampling, a population
Quota_sampling
Sampling from a population which can be partitioned into subpopulations
In statistics, stratified sampling is a method of sampling from a population which can be partitioned into subpopulations. In statistical surveys, when
Stratified_sampling
Stratified sampling Cluster sampling distance sampling Multistage sampling Nonprobability sampling Slice sampling Sampling bias Sampling design Sampling distribution
List_of_statistics_articles
Measure of variation in statistics
equals: c4(N)=2N−1Γ(N2)Γ(N−12). This arises because the sampling distribution of the sample standard deviation follows a (scaled) chi distribution, and
Standard_deviation
Measurement of population size per unit area or unit volume
living density, population density at which the average person lives Distance sampling Demography Human geography Idealised population List of population
Population_density
Sampling from the part of the population close at hand
sampling (also known as grab sampling, accidental sampling, or opportunity sampling) is a type of non-probability sampling that involves the sample being
Convenience_sampling
International border
Fuerteventura Stonechat Saxicola dacotiae: a new evaluation using distance sampling and GIS". Bird Conservation International. 19 (4): 347–355. doi:10
Morocco–Spain_border
Species of squirrel
giant squirrel (Ratufa indica) abundance in southern India using distance sampling" (PDF). Current Science. 95 (7): 885–888. JSTOR 24103185. Archived
Indian_giant_squirrel
Statistical considerations on how many observations to make
complicated sampling techniques, such as stratified sampling, the sample can often be split up into sub-samples. Typically, if there are H such sub-samples (from
Sample_size_determination
Distribution estimation technique
sampling is also related to umbrella sampling in computational physics. Depending on the application, the term may refer to the process of sampling from
Importance_sampling
Measure of similarity and diversity between sets
Jaccard distance is commonly used to calculate an n × n matrix for clustering and multidimensional scaling of n sample sets. These distance measures
Jaccard_index
Largest species of the bovid family
and the contiguous Phnom Prich Wildlife Sanctuary. Line transect distance sampling in Keo Seima Wildlife Sanctuary revealed around 500 individuals in
Gaur
Animal population estimation method
for Capture-Recapture Experiments (Rcapture)", and "Mark-Recapture Distance Sampling (mrds)". Such models can also be fit with specialized programs such
Mark_and_recapture
Spatial anti-aliasing method
sub-pixels, and a sample is taken from the center of each. It is fast and easy to implement. Although, due to the regular nature of sampling, aliasing can
Supersampling
Sampling methodology in statistics
In statistics, cluster sampling is a sampling plan used when mutually homogeneous yet internally heterogeneous groupings are evident in a statistical population
Cluster_sampling
Statistical sampling technique
This sampling scheme does not require more samples for more dimensions (variables); this independence is one of the main advantages of this sampling scheme
Latin_hypercube_sampling
Tropical wetland in Brazil, Bolivia and Paraguay
Batista, Flávia Regina; Bornato, Thainan Silva (December 16, 2021). "Distance sampling surveys reveal 17 million vertebrates directly killed by the 2020's
Pantanal
Species of flowering plant
"Estimation of Population Density for Sika Deer (Cervus nippon) Using Distance Sampling in the Forested Habitats of Hokkaido, Japan". Mammal Study. 42: 57–64
Tilia_maximowicziana
Statistical measure
grand mean of the distance matrix of the X sample. The notation is similar for the b values. (In the matrices of centered distances (Aj, k) and (Bj,k)
Distance_correlation
Marine biology monitoring programming
sampling primarily focuses on the northwest European shelf and the Northeast and Northwest Atlantic, with these regions undergoing monthly sampling;
Continuous_Plankton_Recorder
Probability distribution of the possible sample outcomes
contexts, only one sample (i.e., a set of observations) is observed, but the sampling distribution can be found theoretically. Sampling distributions are
Sampling_distribution
Maximum frequency of non-aliased component upon sampling
as the Nyquist rate. When the function domain is distance, as in an image sampling system, the sample rate might be dots per inch and the corresponding
Nyquist_frequency
Statistical measure of how far values spread from their average
statistical inference, hypothesis testing, goodness of fit, and Monte Carlo sampling. The variance of a random variable X is the expected value of the squared
Variance
Method for numerical integration
The nested sampling algorithm is a computational approach to the Bayesian statistics problems of comparing models and generating samples from posterior
Nested_sampling_algorithm
Distance in millimeters between the centers of each pupil
Pupillary distance (PD), more correctly known as interpupillary distance (IPD) is the distance in millimeters between the centers of each pupil. Distance PD
Pupillary_distance
Statistical property
intervals. The sampling distribution of a mean is generated by repeated sampling from the same population and recording the sample mean per sample. This forms
Standard_error
Monte Carlo algorithm
obtaining a sequence of random samples from a probability distribution from which direct sampling is difficult. New samples are added to the sequence in
Metropolis–Hastings_algorithm
Similarity of two probability distributions
amount of overlap between two statistical samples or populations. It is not a metric, despite being named a "distance", since it does not obey the triangle
Bhattacharyya_distance
Statistical method
error, etc.) to sample estimates. This technique allows estimation of the sampling distribution of almost any statistic using random sampling methods. Bootstrapping
Bootstrapping_(statistics)
Rectangular frame used to demarcate a part of the substrate for detailed analysis
quadrats throughout the sampling area. For long-term studies, the same quadrats can be revisited after their initial sampling. Methods of precisely relocating
Quadrat
Security glazing standard
strikes, with multiple strikes placed within 120mm of each other in the test sample which dimensions are 500±5mm x 500±5mm. The glazing should also be shatterproof
EN_1063
Species of fish
of southern stingrays Dasyatis americanaon a Caribbean atoll using distance sampling". Aquatic Conservation: Marine and Freshwater Ecosystems. 23 (2):
Southern_stingray
Probabilistic problem-solving algorithm
use adaptive routines such as stratified sampling, recursive stratified sampling, adaptive umbrella sampling or the VEGAS algorithm. A similar approach
Monte_Carlo_method
Measure of linear correlation
on the value of the sample correlation coefficient r. The other aim is to derive a confidence interval that, on repeated sampling, has a given probability
Pearson correlation coefficient
Pearson_correlation_coefficient
Sampling bias in astronomy
and average distance to a group of stars. Because of the luminous stars that are at a further distance, it will appear as if our sample of stars is farther
Malmquist_bias
Distance from center of Earth to center of Moon
lunar distance. Some factors are listed in the sections below. The distance to the Moon can be measured to an accuracy of 2 mm over a 1-hour sampling period
Lunar_distance
Proposed Mars sample return mission
April 2022) Mars sample-return mission – Sampling Process Mars sample-return mission – Sample Tubes Mars sample-return mission Mars sample-return mission
NASA-ESA_Mars_Sample_Return
Statistical hypothesis test
the statistic t=x¯−μ0s/n, where x¯ is the sample mean, s is the sample standard deviation and n is the sample size. The degrees of freedom used in this
Student's_t-test
Dennis, Roger L. H.; Shuker, David M.; Thomas, Chris D. (2011). "Distance sampling and the challenge of monitoring butterfly populations" (PDF). Methods
Butterfly_count
Type of deterministic method for multivariate interpolation
Inverse distance weighting (IDW) is a type of deterministic method for multivariate interpolation with a known homogeneously scattered set of points. The
Inverse_distance_weighting
At which direct and reverberant sounds have equal pressure
source is directional, the sound pressure as a function of distance between source and sampling point (listener) varies with their relative position, so
Critical_distance
Method of statistical sampling
clear distinctions during sampling. This sampling method should be distinguished from cluster sampling, where a simple random sample of several entire clusters
Stratified_randomization
New Zealand ecologist
Cassey, Phill (1997). "Estimating Animal Abundance: An assessment of distance sampling techniques for New Zealand populations". Auckland University, New
Phill_Cassey
Subspecies of onager
L. Laake; D. L. Borchers; L. Thomas, eds. (2001). Introduction to Distance Sampling. Estimating Abundance of Biological Populations. Oxford, UK: Oxford
Mongolian_wild_ass
Spatial statistics function
of how much two samples taken from the mining area will vary in gold percentage depending on the distance between those samples. Samples taken far apart
Variogram
Type of sampling strategy
statistics, multistage sampling is the taking of samples in stages using smaller and smaller sampling units at each stage. Multistage sampling can be a complex
Multistage_sampling
Volcanic rock
Okanoba's eruption on January 20, 1986. South Iwo Jima can be seen in the distance. Sample of glassy pumice (9 cm across) from Mono County, California Air fall
Pumice
Spacecraft mission
Thus, the sample may contain material originating on Mars itself. MMX is expected to arrive at Mars in 2026, conduct its Deimos sampling in late 2028
Sample-return_mission
Computer graphics rendering method
A possible way of sampling distances is the ray marching method, which works similarly to ray tracing but operates on a distance field of the scene and
Volumetric_path_tracing
Mathematical statistics distance measure
entropy and I-divergence), denoted DKL(P∥Q), is a type of statistical distance: a measure of how much an approximating probability distribution Q is different
Kullback–Leibler_divergence
Unit of information
they represent data. An analog computer represents a datum as a voltage, distance, position, or other physical quantity. A digital computer represents a
Data
periodic sampling is by far the simplest scheme. Theoretically, sampling can be performed with respect to any set of points. But practically, sampling is carried
Hexagonal_sampling
Smallest addressable element of a raster image
pixel storing one or more numerical values that represent a sample of an image. A greater sampling density can represent finer spatial detail, although the
Pixel
Metric for difference between two colors
In color science, color difference or color distance is the separation between two colors. This metric allows quantified examination of a notion that formerly
Color_difference
Statistical test
other algorithms, such as minimum distance estimation. It is defined as ω2, where ω2=∫−∞∞[Fn(x)−F∗(x)]2dF∗(x) In one-sample applications F∗ is the theoretical
Cramér–von_Mises_criterion
Square matrix containing the distances between elements in a set
cosine. Euclidean distance is invariant to mean-correction. The sampling distribution of a mean is generated by repeated sampling from the same population
Distance_matrix
importance sampling method of variance reduction, does not require detailed knowledge of the system. The basic idea behind line sampling is to refine
Line_sampling
Middle quantile of a data set or probability distribution
median of a discrete set of sample points x1,…xN in a Euclidean space is the point minimizing the sum of distances to the sample points. μ̂=argminμ∈ℝm∑n=1N‖μ−xn‖2
Median
Similarity measure for number sequences
virtue of being proportional to squared Euclidean distance, the cosine distance is not a true distance metric; it does not exhibit the triangle inequality
Cosine_similarity
Calculation of complex statistical distributions
component-wise updating idea, later known as Gibbs sampling. Simultaneously, the theoretical foundations for Gibbs sampling were being developed, such as the Hammersley–Clifford
Markov_chain_Monte_Carlo
Inverse of the average of the inverses of a set of numbers
Pharm Sci 74(2) 229-231 Cox DR (1969) Some sampling problems in technology. In: New developments in survey sampling. U.L. Johnson, H Smith eds. New York: Wiley
Harmonic_mean
Species of owl
Phillcaine, Pilla (2018). "Sunda Scops-Owl Density Estimation via Distance Sampling and Call Playback" (PDF). Sains Malaysiana. 47 (3): 441–446. doi:10
Sunda_scops_owl
Search algorithm
is accomplished by introducing a small probability of sampling the goal to the state sampling procedure. The higher this probability, the more greedily
Rapidly_exploring_random_tree
Study of health and disease within a population
to correct for random error. There is a random error in all sampling procedures – sampling error.[citation needed] Precision in epidemiological variables
Epidemiology
Acceptance Sampling Technique
In statistics, a variables sampling plan is an acceptance sampling technique. Plans for variables are intended for quality characteristics that are measured
Variables_sampling_plan
American conservation biologist and ecologist
She also completed modelling of white-tail deer populations using distance sampling techniques. She went on to gain a Master's degree in Zoology at the
Michelle_LaRue
National Park of Tanzania
other arboreal primates in the Udzungwa Mountains using systematic distance sampling." International Journal of Primatology 35 (2014): 941-956. Menegon
Udzungwa Mountains National Park
Udzungwa_Mountains_National_Park
Measure of surface finish or texture
points along the trace, and y i {\displaystyle y_{i}} is the vertical distance from the mean line to the i th {\displaystyle i^{\text{th}}} data point
Surface_roughness
How many standard deviations apart from the mean an observed datum is
the standard deviation σ: z=eσ The absolute value of z represents the distance between that raw score x and the population mean in units of the standard
Standard_score
Metric used to assess image quality
The Fréchet inception distance (FID) is a metric used to assess the quality of images created by a generative model, like a generative adversarial network
Fréchet_inception_distance
Spacing between measurements
spatial sampling layout is more related to the Earth's surface, such as in remote sensing and satellite imagery. Image resolution Ground sample distance Level
Spatial_resolution
Derived representation of a digital image
A distance transform, also known as distance map or distance field, is a derived representation of a digital image. The choice of the term depends on the
Distance_transform
Measure of divergence between populations
Publications. Nei M, Roychoudhury AK (February 1974). "Sampling variances of heterozygosity and genetic distance". Genetics. 76 (2): 379–90. doi:10.1093/genetics/76
Genetic_distance
Radar performance enhancement strategy
process of digital sampling causes ringing in the filters that are used to remove reflected signals from slow moving objects. Sampling causes frequency
Pulse-Doppler signal processing
Pulse-Doppler_signal_processing
Professor of Zoology at Texas A&M University
Lineage ties Dr Fitzgerald to Dr Snell THS Lizard Symposium Schedule Distance sampling underestimates population densities of dune-dwelling lizards Texas
Lee_Fitzgerald
Statistical test comparing two probability distributions
Kolmogorov–Smirnov statistic quantifies a distance between the empirical distribution function of the sample and the cumulative distribution function of
Kolmogorov–Smirnov_test
a prism or angle gauge. Borderline trees occur only when the distance from the sampling point to the center of the tree is equal to the DBH times plot
Borderline_tree
Bias in a statistical analysis due to non-random selection
reporting of information Sampling bias – Bias in the sampling of a population Sampling probability – Theory relating to sampling from finite populations
Selection_bias
Distance between probability distributions
Energy distance is a statistical distance between probability distributions. If X and Y are independent random vectors in Rd with cumulative distribution
Energy_distance
Value that appears most often in a set of data
discretize the data by assigning frequency values to intervals of equal distance, as for making a histogram, effectively replacing the values by the midpoints
Mode_(statistics)
Range at which an animal flees from a threat
escape distance, alert distance, flush distance, and escape flight distance. Swiss zoologist Heini Hediger distinguished between flight distance (escape
Flight_zone
Relations between persons on different geographical locations
A long-distance relationship (LDR) or long-distance romantic relationship is an intimate relationship between partners who are geographically separated
Long-distance_relationship
Single measure of some attribute of a sample
in a sample which is considered for a statistical purpose. Statistical purposes include estimating a population parameter, describing a sample, or evaluating
Statistic
Measure in optics
Vertex distance is the distance between the back surface of a corrective lens, i.e. glasses (spectacles) or contact lenses, and the front of the cornea
Vertex_distance
Observation far apart from others in statistics and data science
when sampling from a Cauchy distribution, the sample variance increases with the sample size, the sample mean fails to converge as the sample size increases
Outlier
Species of bird
J. Andrew; Kéry, Marc; Morrison, Scott A. (2012). "Hierarchical distance-sampling models to estimate population size and habitat-specific abundance
Island_scrub_jay
Difficulties arising when analyzing data with many aspects ("dimensions")
which is the unit interval. In the above example n = 2: when using a sampling distance of 0.01 the 10-dimensional hypercube appears to be 1018 "larger" than
Curse_of_dimensionality
Statistic expressing the amount of random sampling error in a survey's results
population N, but only on the sample size n. According to sampling theory, this assumption is reasonable when the sampling fraction is small. The margin
Margin_of_error
travel, tourism, insurance
DISTANCE SAMPLING
DISTANCE SAMPLING
Female
French
French form of Latin Constantia, CUSTANCE means "steadfast."Â
Girl/Female
Indian
Some distance
Girl/Female
Muslim
Some distance
Girl/Female
American, British, English, French, Greek
Fate; Certain Fortune; The Mythological Greek God of Fate
Girl/Female
Muslim/Islamic
Some distance
Boy/Male
Indian, Modern
Full of Light
Girl/Female
Indian
Some distance
Boy/Male
Tamil
Astitya | அஸà¯à®¤à®¿à®¤à¯à®¯
Existance
Astitya | அஸà¯à®¤à®¿à®¤à¯à®¯
Boy/Male
Indian
Distance
Boy/Male
Hindu
Existance
Boy/Male
Arabic
Distance
Girl/Female
Muslim
Some distance
Girl/Female
Muslim
Distinct
Girl/Female
English French
Certain fortune; fate. The mythological Greek god of fate.
Girl/Female
Muslim
Some distance
Girl/Female
Muslim/Islamic
Some distance
Girl/Female
Arabic, Muslim
Distinct
Girl/Female
Arabic, Muslim, Sindhi
Some Distance
Girl/Female
Arabic, Muslim, Sindhi
Some Distance
Girl/Female
Muslim
Some distance
DISTANCE SAMPLING
DISTANCE SAMPLING
DISTANCE SAMPLING
DISTANCE SAMPLING
DISTANCE SAMPLING
DISTANCE SAMPLING
DISTANCE SAMPLING
a.
Separated; having an intervening space; at a distance; away.
n.
The remoteness or reserve which respect requires; hence, respect; ceremoniousness.
v. t.
To cause to appear as if at a distance; to make seem remote.
v. t.
To outstrip by as much as a distance (see Distance, n., 3); to leave far behind; to surpass greatly.
a.
Distance.
a.
Reserved or repelling in manners; cold; not cordial; somewhat haughty; as, a distant manner.
a.
So separated as not to be confounded with any other thing; not liable to be misunderstood; not confused; well-defined; clear; as, we have a distinct or indistinct view of a prospect.
v. t.
To mention as a case or example; to refer to; to cite; as, to instance a fact.
n.
Remoteness in succession or relation; as, the distance between a descendant and his ancestor.
n.
An instrument for measuring the distance of distinct vision, mainly for the selection of eveglasses.
n.
Distance.
v. t.
To place at a distance or remotely.
a.
Far separated; far off; not near; remote; -- in place, time, consanguinity, or connection; as, distant times; distant relatives.
imp. & p. p.
of Distance
a.
Not conformable; discrepant; repugnant; as, a practice so widely distant from Christianity.
n.
The interval between two notes; as, the distance of a fourth or seventh.
n.
Removal to a distance; withdrawal; a being at a distance; distance.
n.
A withholding of intimacy; alienation; coldness; disagreement; variance; restraint; reserve.
a.
Indistinct; faint; obscure, as from distance.
n.
Length or interval of time; period, past or future, between two eras or events.
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