Spatial Spread Sampling Using Weakly Associated VectorsJournal of Agricultural, Biological and Environmental Statistics - Tập 25 - Trang 431-451 - 2020
Raphaël Jauslin, Yves Tillé
Geographical data are generally autocorrelated. In this case, it is preferable
to select spread units. In this paper, we propose a new method for selecting
well-spread samples from a finite spatial population with equal or unequal
inclusion probabilities. The proposed method is based on the definition of a
spatial structure by using a stratification matrix. Our method exactly satisfies
given inclu... hiện toàn bộ
Optimization of Selective Phenotyping and Population Design for Genomic PredictionJournal of Agricultural, Biological and Environmental Statistics - Tập 25 - Trang 579-600 - 2020
Nicolas Heslot, Vitaliy Feoktistov
Genomic prediction, the joint analysis of high-density molecular marker data and
phenotype to predict the performance of individuals for breeding purpose, is now
a method used in routine in many plant and animal breeding programs. This opens
several new design questions such as how to select a subset of preexisting
individuals for phenotyping based on the molecular marker data to estimate
marker e... hiện toàn bộ
Comparison of spatial variables over subregions using a block bootstrapJournal of Agricultural, Biological and Environmental Statistics - Tập 9 - Trang 91-104 - 2004
Jun Zhu, G. D. Morgan
In environmental and agricultural studies, it is often of interestto compare
spatial variables across different regions. Traditional statistical tools that
assume independent samples are inadequate because of potential spatial
correlations. In this article, spatial dependence is accounted for by a random
field model, and a non parametric test is developed to compare the overall
distributions of va... hiện toàn bộ
Genomic Prediction Models for Count DataJournal of Agricultural, Biological and Environmental Statistics - Tập 20 - Trang 533-554 - 2015
Osval A. Montesinos-López, Abelardo Montesinos-López, Paulino Pérez-Rodríguez, Kent Eskridge, Xinyao He, Philomin Juliana, Pawan Singh, José Crossa
Whole genome prediction models are useful tools for breeders when selecting
candidate individuals early in life for rapid genetic gains. However, most
prediction models developed so far assume that the response variable is
continuous and that its empirical distribution can be approximated by a Gaussian
model. A few models have been developed for ordered categorical phenotypes, but
there is a lack ... hiện toàn bộ
Bayesian estimation of survival from mark-recapture dataJournal of Agricultural, Biological and Environmental Statistics - Tập 7 - Trang 264-276 - 2002
David Poole
An understanding of survival patterns is a fundamental component of animal
population biology. Mark-recapture models are often used in the estimation of
animal survival rates. Maximum likelihood estimation, via either analytic
solution or numerical approximation, has typically been used for inference in
these models throughout the literature. In this article, a Bayesian approach is
outlined and an... hiện toàn bộ
A Continuous Time-and-State Epidemic Model Fitted to Ordinal Categorical Data Observed on a Lattice at Discrete TimesJournal of Agricultural, Biological and Environmental Statistics - Tập 18 Số 4 - Trang 538-555 - 2013
Crété, Rémi, Pumo, Besnik, Soubeyrand, Samuel, Didelot, Frédérique, Caffier, Valérie
We consider a spatio-temporal model to describe the spread of apple scab within
an orchard composed of several plots. The model is defined on a regular lattice
and evolves in continuous time. Based on ordinal categorical data observed only
at some discrete instants, we adopt a continuous-time approach and apply a
Bayesian framework for estimating unknown parameters.
Randomization tests for time effects and heterogeneity in capture probabilities for closed populationsJournal of Agricultural, Biological and Environmental Statistics - Tập 6 - Trang 292-301 - 2001
Darryl I. MacKenzie, Bryan F. J. Manly
We propose the use of randomization tests to detect time effects and
heterogeneity in capture probabilities of individuals in a closed-population
mark-recapture study. The results of a simulation study show the randomization
procedures can be implemented so that tests are robust to extraneous sources of
variation, with good power to detect the desired effects. We apply the tests to
two examples of... hiện toàn bộ