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Dynamics of Weed Populations

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ISBN-10: 0521499690

ISBN-13: 9780521499699

Edition: 1995

Authors: Roger Cousens, Martin Mortimer

List price: $84.99
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What are the ecological attributes of weeds that confer the ability to interfere with human activities? Roger Cousens and Martin Mortimer place weed management within an ecological context, with the focus on the manipulation of population size. The dynamics of abundance and spatial distribution are considered at both geographic and local scales. The basic processes of dispersal, reproduction and mortality are described, together with the factors that influence them. Management is shown to modify patterns of behaviour that are intrinsic to populations. Attention is given to the evolution and management of resistance to herbicides. This book provides weed science with the conceptual basis…    
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Book details

List price: $84.99
Copyright year: 1995
Publisher: Cambridge University Press
Publication date: 11/24/1995
Binding: Paperback
Pages: 348
Size: 5.94" wide x 8.94" long x 1.02" tall
Weight: 1.364
Language: English

Weed population dynamics--the framework
The impact of weeds
The development of a weed flora
The concept of a habitat
Studying weed populations
Life-cycles and life histories
The dynamics of geographic range expansion
Are there recognisable phases in the invasion process?
How can we measure rate of spread from available data?
What governs rate of spread during an invasion?
What makes range expansion cease?
Invasion direction: have species of weeds spread in some directions more than in others?
Have particular modes of dispersal dominated spread between continents?
Models of range expansion: implications for the management of invasions
Dispersal within and between populations
Patterns of dispersal
Dispersal by different agencies
How important are the various vectors of dispersal?
Processes involved in the regulation of population density
The seed phase
The plant phase
Vegetative reproductive phase
The intrinsic dynamics of population density
What types of trajectory are likely?
A short digression: how do we go about mathematical modelling?
Mathematical models of population density
What types of trajectory occur in practice?
Extrinsic factors affecting population density
The effects of agricultural management factors
The effects of weather
Interactions with other organisms
Using models to explore weed control options
The spatial dynamics of weed populations
The implications of habitat mosaics within fields
Field observations of the spread of weed populations
Models of patch expansion
Implications for patch formation
Field observations of the dynamics of weed patches
Meta-population dynamics and weed populations: a conceptual view
Suggestions from simulation models
The evolution of herbicide resistance
Theoretical background
The genetic basis of herbicide resistance: single and multigene systems
The dynamics of selection
The management of herbicide resistance
Weed population dynamics: synthesis and prognosis
Is the data base extensive enough?
Can changes in weed populations be predicted?
Are the right questions being answered?
Can studies of weed biology drive changes in farm or land management?
Organism index
Subject index