By Michael J. Crawley
This ebook is set illness and loss of life. it really is an ecologist's view of Darwin's bright evocation of Nature, pink in the teeth and claw. a world staff of authors examines huge styles within the inhabitants biology of typical enemies, and addresses normal questions about the function of common enemies within the inhabitants dynamics and evolution in their prey. for example, how do huge average enemies like wolves range from small typical enemies like bacterial illnesses of their results on prey abundance? Is it larger to chase after prey, or sit down and watch for it to come back to you? How should still prey behave in an effort to reduce the chance of being eaten? The solutions are all during this attention-grabbing senior undergraduate/postgraduate text.Content:
Chapter 1 Evolution of Exploiter–Victim Relationships (pages 1–25): Jon Seger
Chapter 2 Correlates of Carnivory: techniques and solutions (pages 26–39): Paul H. Harvey and John L. Gittleman
Chapter three inhabitants Dynamics of average Enemies and their Prey (pages 40–89): Michael J. Crawley
Chapter four Foraging concept (pages 90–114): Michael J. Crawley and John R. Krebs
Chapter five huge Carnivores and their Prey: the short and the lifeless (pages 115–142): T. M. Caro and Clare D. Fitzgibbon
Chapter 6 Birds of Prey (pages 143–162): Ian Newton
Chapter 7 Insectivorous Mammals (pages 163–187): Ilkka Hanski
Chapter eight Marine Mammals (pages 188–204): Simon Northridge and John Beddington
Chapter nine Marine Invertebrates (pages 205–224): A. J. Underwood and P. G. Fairweather
Chapter 10 Predatory Arthropods (pages 225–264): Maurice W. Sabelis
Chapter eleven The inhabitants Biology of Insect Parasitoids (pages 265–292): Michael P. Hassell and H. Charles J. Godfray
Chapter 12 Bloodsucking Arthropods (pages 293–312): Christopher Dye
Chapter thirteen Spiders as consultant ‘Sit?and?wait’ Predators (pages 313–328): Susan E. Riechert
Chapter 14 Macroparasites: Worms and Others (pages 329–348): Andrew P. Dobson, Peter J. Hudson and Annarie M. Lyles
Chapter 15 Microparasites: Viruses and micro organism (pages 349–374): D. James Nokes
Chapter sixteen Predator Psychology and the Evolution of Prey color (pages 375–394): Tim Guilford
Chapter 17 typical Enemies and neighborhood Dynamics (pages 395–411): Andrew Redfearn and Stuart L. Pimm
Chapter 18 organic regulate (pages 412–430): Jeff okay. Waage and Nick J. Mills
Chapter 19 The Dynamics of Predator–Prey and Resource–Harvester structures (pages 431–457): Robert M. may well and Charlotte H. Watts
Chapter 20 Prey Defence and Predator Foraging (pages 458–475): Stephen B. Malcolm
Chapter 21 assessment (pages 476–489): Michael J. Crawley
Read or Download Natural Enemies: The Population Biology of Predators, Parasites and Diseases PDF
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Additional info for Natural Enemies: The Population Biology of Predators, Parasites and Diseases
15 Are there invulnerable age or size classes of the prey, and how important are age-structure effects in general? It should be immediately clear that these questions cannot be tackled simultaneously, either by experiment or theory. " = 32 768 different treatment combinations. As a starting point, we shall look at each of these questions in isolation, but bearing in mind that interaction effects will be commonplace, and that trends may be reversed by other circumstances. We need to be especially clear about the scale at which we are attempting to describe the dynamics of the predator-prey interaction.
If it is worth taking it should be taken every time the predator finds one. The reason that a predator might tum down a prey species is that by feeding on an inferior prey item it would lose the opportunity to find and feed from a superior prey (see Chapter 4 for detailsl. g. competition for resources'. 1) which gives unbounded exponential growth for the prey population because A > 1. 3) and will decline to extinction if predation is more intense than this. The important point is that prey populations with higher net rate of increase Aare capable of persisting in habitats with higher densities of generalist predators.
An interesting question which we can use to motivate our discussion of group living is: who gets the benefits? Is group hunting coordinated for the good of the group or the good of the individual? Of course, individuals would not hunt together if each did not benefit from the association. But there is a more subtle distinction. Consider a group of four male chimpanzees attempting to catch a young baboon which runs up a tree. One chimpanzee follows it up the tree, while others climb adjacent trees thus cutting off the escape routes for the young baboon.