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CAB eBooks

Ebooks on agriculture and the applied life sciences from CAB International

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CABI Book Chapter Info
Cover for Species abundance, accumulation and diversity data.

Ecologists in particular are often interested in the species richness and diversity of groups of organisms, ranging from studies of small ecosystems to global patterns. In most cases it is not possible to count every individual or to detect every species, and so they use a variety of estimation...

Author(s)
Quicke, D. L. J.; Butcher, B. A.; Welton, R. A. K.
ISBN
2021 CAB International (H ISBN 9781789245349)
Type
Book chapter
CABI Book Chapter Info
Cover for Estimating numbers.

Estimating nematode numbers is required to quantify the presence of certain nematode taxa in plant tissue, field soil or any other substrates. This chapter describes the enumeration of nematodes within plant tissue (e.g. roots, stems, leaves, seeds) and in liquids. It also deals with estimating...

Author(s)
Hallmann, J.; Daub, M.; Wesemael, W.
ISBN
2021 CABI (H ISBN 9781786391759)
Type
Book chapter
CABI Book Chapter Info
Cover for Analysing genetic variation in farm animals.

In this chapter, topics focused on how to quantify the extent to which genes affect measured traits and how to use this information in breeding programmes. Highlights include: estimating heritability; estimating non-additive parameters, correlations, and genotype by environment interactions,...

Author(s)
Simm, G.; Pollott, G.; Mrode, R.; Houston, R.; Marshall, K.
ISBN
2021 CABI (H ISBN 9781789241723)
Type
Book chapter
Full TextCABI Book Chapter InfoOpen Access
Cover for The rapid incineration field test as an accurate, cost-effective and practical tool for estimating soil carbon in Africa.

Determining soil carbon levels is not an exact science; variability due to sampling technique and method of determination has been documented over the years. Current methods for soil carbon determination are expensive, energy intensive, time-consuming and use potentially hazardous chemicals. To...

Author(s)
Ackhurst, A.; Auerbach, R.; Louw, J.
ISBN
2020 CABI (H ISBN 9781786399601)
Type
Book chapter
CABI Book Chapter Info
Cover for Sampling distributions: the foundation of inference.

This chapter explores the sampling distributions of means, proportions, differences of two means, differences of two proportions, variances and ratios of variances, using data from forest plantations. These distributions will provide the basic tools to understand subsequent chapters of this book,...

Author(s)
Kozak, A.; Kozak, R. A.; Staudhammer, C. L.; Watts, S. B.
ISBN
2019 CABI (H ISBN 9781789243307)
Type
Book chapter
CABI Book Chapter Info
Cover for Estimation: determining the value of population parameters.

This chapter discusses statistical estimation used in forestry, which can be classified as either point estimation or interval estimation. A point estimate is a single numeric value calculated from the information in a sample. An interval estimate yields two numeric values, between which we can...

Author(s)
Kozak, A.; Kozak, R. A.; Staudhammer, C. L.; Watts, S. B.
ISBN
2019 CABI (H ISBN 9781789243307)
Type
Book chapter
CABI Book Info
Cover for Pesticide risk assessment.

This book aims to organize the published environmental impact information on pesticides into a usable form to help growers and other integrated pest management practitioners make more environmentally sound pesticide choices. This book deals with all kinds of risks, such as risk to aquifers and...

Author(s)
Arora, S.
ISBN
2019 CAB International (H ISBN 9781780646336)
Type
Book
CABI Book Chapter Info
Cover for Estimation of parameters.

The concept of parameter estimation in statistical analysis and its application in animal production studies is discussed.

Author(s)
Kaps, M.; Lamberson, W. R.
ISBN
2017 CABI (H ISBN 9781786390356)
Type
Book chapter
CABI Book Chapter Info
Cover for Light interception and canopy sensing for tree fruit canopy management.

This chapter provides a review of the principles, state-of-the-art technology and applications of light interception sensing systems and modelling for use in production agriculture. Case studies are presented where proximally sensed photosynthetically active radiation interception data measured...

Author(s)
Rojo, F.; Zhang JingJin; Upadhyaya, S.; Zhang, Q.
ISBN
2018 CABI (H ISBN 9781780648507)
Type
Book chapter
CABI Book Chapter Info
Cover for Population dynamics: cycles and patterns.

This chapter looks at the abundance on crops of several aphid species and what explanations for the patterns observed can be proposed from field-derived evidence. Although attempts over the years to understand the causes of population change of aphids on crops from field-collected data have...

Author(s)
Leigh, S. G.; Emden, H. F. van
ISBN
2017 CABI (H ISBN 9781780647098)
Type
Book chapter

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