Zobrazeno 1 - 10
of 18
pro vyhledávání: '"I. B. J. Goudie"'
Autor:
Michael B. Morrissey, I. B. J. Goudie
Publikováno v:
Evolution. 76:1378-1390
MBM is supported by a Royal Society (London) University Research Fellowship. Log-linear models are widely used for assessing determinants of fitness in empirical studies, for example, in determining how reproductive output depends on trait values or
Autor:
I. B. J. Goudie, R. Gormley
Publikováno v:
Communications in Statistics - Theory and Methods. 42:3704-3715
We consider a generalization of the Schnabel census in which a known number of planted individuals is added to the target population before sampling commences. We derive the distribution of the number of distinct target individuals seen after drawing
Autor:
I. B. J. Goudie, R. Gormley
Publikováno v:
Statistics & Probability Letters. 83:1740-1744
Samples of predetermined sizes are drawn from a closed homogeneous population augmented by a known number of planted individuals. Our results suggest that the Pathak-type estimator of its size that we exhibit should be preferred to alternative possib
Autor:
I. B. J. Goudie, J. Ashbridge
Publikováno v:
Communications in Statistics - Theory and Methods. 38:1-12
A target population is increased by the insertion of a known number of planted individuals. The standard equal catchability model used in mark-recapture is assumed to be applicable to the augmented population. This article considers a conditionally u
Autor:
M. Goudie, I. B. J. Goudie
Publikováno v:
Journal of the Royal Statistical Society Series A: Statistics in Society. 170:825-839
SummaryWe examine the claim that the well-known Petersen estimator which is used in population size estimation was not in fact used by the scientist after whom it is named. We show how, in the early years of the last century, the modern use of the Pe
Publikováno v:
Biometrika. 94:243-248
We consider maximum likelihood estimation of the size of a target population to which has been added a known number of planted individuals. The standard equal-catchability model used in mark-recapture is assumed to be applicable to the augmented popu
Autor:
J. Ashbridge, I. B. J. Goudie
Publikováno v:
Communications in Statistics - Theory and Methods. 34:1543-1553
In this article we reconsider an estimator of population size previously advocated for use when sampling from a population subdivided into different types. We show that it may be usefully adopted in the simple equal-catchability model used in mark-re
Publikováno v:
Amphibia-Reptilia. 25:303-356
Conservation biology requires the assessment of demographic parameters and life-history data in wildlife populations. Such data can be gathered through capture-mark-recapture (CMR) of individuals. Marking techniques may vary for study organisms, rese
Publikováno v:
Biometrics. 56:1-12
We review the major developments in wildlife population assessment in the past century. Three major areas are considered: mark-recapture, distance sampling, and harvest models. We speculate on how these fields will develop in the next century. Topics
Autor:
J. Ashbridge, I. B. J. Goudie
Publikováno v:
Communications in Statistics - Simulation and Computation. 29:1215-1237
Consideration of coverage yields a new class of estimators of population size for the standard mark-recapture model which permits heterogeneity of capture probabilities. Real data and simulation studies are used to assess these coverage-adjusted esti