Estimation Of Insect Populations By Removal Sampling
DOWNLOAD
Download Estimation Of Insect Populations By Removal Sampling PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Estimation Of Insect Populations By Removal Sampling book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Estimation Of Insect Populations By Removal Sampling
DOWNLOAD
Author : Kenneth P. Pruess
language : en
Publisher:
Release Date : 1977
Estimation Of Insect Populations By Removal Sampling written by Kenneth P. Pruess and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Insect populations categories.
Ecological Methods
DOWNLOAD
Author : T.R. Southwood
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-06-29
Ecological Methods written by T.R. Southwood and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-29 with Science categories.
The virtual impossibility of extracting the many different species from a habitat with equal efficiency by a single method (e.g. Nef, 1960). 1.1 Population estimates Population estimates can be classified into a number of different types; the most convenient classification is that adopted by Morris (1955), although he used the terms somewhat differently in a later paper (1960). 1.1.1 Absolute and related estimates The animal numbers may be expressed as a density per unit area of the ground of the habitat. Such estimates are given by nearest neighbour and related techniques (Chapter 2), marking and recapture (Chapter 3), by sampling a known fraction of the habitat (Chapter 4-6) and by removal sampling and random walk techniques (Chapter 7). Absolute population The number of animals per unit area (e.g. hectare, acre). It is almost impossible to construct a budget or to study mortality factors without the conversion of population estimates to absolute figures, for not only do insects often move from the plant to the soil at different developmental stages, but the amount of plant material is itself always changing. The importance of obtaining absolute estimates cannot be overemphasized.
Ecological Methods
DOWNLOAD
Author : T.R. Southwood
language : en
Publisher: Springer
Release Date : 1987-10-31
Ecological Methods written by T.R. Southwood and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987-10-31 with Science categories.
the virtual impossibility of extracting the many different species from a habitat with equal efficiency by a single method (e.g. Nef, 1960). 1.1 Population estimates Population estimates can be classified into a number of different types; the most convenient classification is that adopted by Morris (1955), although he used the terms somewhat differently in a later paper (1960). 1.1.1 Absolute and related estimates The animal numbers may be expressed as a density per unit area of the ground of the habitat. Such estimates are given by nearest neighbour and related techniques (Chapter 2), marking and recapture (Chapter 3), by sampling a known fraction of the habitat (Chapter 4-6) and by removal sampling and random walk techniques (Chapter 7). Absolute population The number of animals per unit area (e.g. hectare, acre). It is almost impossible to construct a budget or to study mortality factors without the conversion of population estimates to absolute figures, for not only do insects often move from the plant to the soil at different developmental stages, but the amount of plant material is itself always changing. The importance of obtaining absolute estimates cannot be overemphasized.
Estimation And Analysis Of Insect Populations
DOWNLOAD
Author : Lyman L. McDonald
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Estimation And Analysis Of Insect Populations written by Lyman L. McDonald and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Mathematics categories.
The papers in this volume were presented at a symposium/workshop on "The Estimation and Analysis of Insect Populations" that was held at the University of Wyoming, Laramie, in January, 1988. The meeting was organized with financial support from the United States - New Zealand Cooperative Science Program and the University of Wyoming. The purpose was to bring together approximately equal numbers of quantitative biologists and biometricians in order to (1) provide a synthesis and evaluation of currently available methods for modeling and estimating parameters of insect population, and to (2) stimulate research into new methods where this is appropriate. The symposium/workshop attracted 46 participants. There were 35 papers presented in four subject areas: analysis of stage-frequency data, modeling of population dynamiCS, analysis of spatial data, and general sampling and estimation methods. New results were presented in all these areas. All except one of the papers is included in the present volume.
Capture Recapture And Removal Methods For Sampling Closed Populations
DOWNLOAD
Author : Gary C. White
language : en
Publisher:
Release Date : 1982
Capture Recapture And Removal Methods For Sampling Closed Populations written by Gary C. White and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Animal populations categories.
Simplified Point And Interval Estimation For Removal Trapping
DOWNLOAD
Author : Andrew P. Soms
language : en
Publisher:
Release Date : 1976
Simplified Point And Interval Estimation For Removal Trapping written by Andrew P. Soms and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with categories.
Two methods, the generalized moment and the regression, both based on the limiting distribution of the multinomial, are given for estimating the parameters in the removal trapping method of estimating animal and insect populations. Some finite sample size results are provided indicating the speed of convergence to the limiting distribution. Numerical examples are also discussed. (Author).
Some Results On The Combined Removal And Signs Of Activities Estimators For Sampling Closed Animal Populations
DOWNLOAD
Author : Jeffrey H. Gove
language : en
Publisher:
Release Date : 1995
Some Results On The Combined Removal And Signs Of Activities Estimators For Sampling Closed Animal Populations written by Jeffrey H. Gove and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Animal populations categories.
Empirical Methods In The Evaluation Of Estimators
DOWNLOAD
Author : Gerald S. Walton
language : en
Publisher:
Release Date : 1973
Empirical Methods In The Evaluation Of Estimators written by Gerald S. Walton and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Insect populations categories.
Capture Recapture And Removal Methods For Sampling Closed Populations
DOWNLOAD
Author : G.C. White
language : en
Publisher:
Release Date : 1978
Capture Recapture And Removal Methods For Sampling Closed Populations written by G.C. White and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with categories.
Sampling Methods In Soybean Entomology
DOWNLOAD
Author : M. Kogan
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Sampling Methods In Soybean Entomology written by M. Kogan and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Insects as a group occupy a middle ground in the biosphere between bacteria and viruses at one extreme, amphibians and mammals at the other. The size and gen eral nature of insects present special problems to the student of entomology. For example, many commercially available instruments are geared to measure in grams, while the forces commonly encountered in studying insects are in the mil ligram range. Therefore, techniques developed in the study of insects or in those fields concerned with the control of insect pests are often unique. Methods for measuring things are common to all sciences. Advances sometimes depend more on how something was done than on what was measured; indeed a given field often progresses from one technique to another as new methods are discovered, developed, and modified. Just as often, some of these techniques fmd their way into the classroom when the problems involved have been suffici ently ironed out to permit students to master the manipulations in a few labo ratory periods. Many specialized techniques are confined to one specific research laboratory. Although methods may be considered commonplace where they are used, in another context even the simplest procedures may save considerable time. It is the purpose of this series (1) to report new developments in methodology, (2) to reveal sources of groups who have dealt with and solved particular entomological problems, and (3) to describe experiments which might be applicable for use in biology laboratory courses.