Get Community Ecology, 2nd Edition PDF

By Peter J. Morin(auth.)

ISBN-10: 1444338218

ISBN-13: 9781444338218

ISBN-10: 1444341960

ISBN-13: 9781444341966

Content material:
Chapter 1 groups (pages 1–23):
Chapter 2 festival: Mechanisms, types, and Niches (pages 24–57):
Chapter three pageant: Experiments, Observations, and Null types (pages 58–89):
Chapter four Predation and groups: Empirical styles (pages 90–119):
Chapter five types of Predation in easy groups (pages 120–135):
Chapter 6 nutrients Webs (pages 136–165):
Chapter 7 Mutualisms (pages 166–186):
Chapter eight oblique results (pages 187–212):
Chapter nine Temporal styles: Seasonal Dynamics, precedence results, and meeting principles (pages 213–237):
Chapter 10 Habitat choice (pages 238–250):
Chapter eleven Spatial Dynamics (pages 251–280):
Chapter 12 reasons and outcomes of variety (pages 281–318):
Chapter thirteen Succession (pages 319–339):
Chapter 14 utilized group Ecology (pages 340–348):

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Extra resources for Community Ecology, 2nd Edition

Sample text

In some simple systems, such as laboratory communities composed of several species of protists (Vandermeer 1969), interactions are adequately described by an additive model. In other situations, often correspond- MECHANISMS, MODELS, AND NICHES 33 ing to interactions involving somewhat more complex organisms, like microcrustaceans (Neill 1974), insects (Worthen and Moore 1991), or vertebrates (Morin et al. 1988), interactions can be non-additive. We will return to this topic in greater detail when we consider experimental studies of competition in Chapter 3.

9c) Here the subscripts 1 and 2 refer to consumer species 1 and 2. An important prediction of this model is that one consumer species invariably excludes the other BASIC PATTERNS AND ELEMENTARY PROCESSES Fig. 5 Competition in a Monod model for two consumers utilizing the same resource. 074, eventually wins. These simulations are based on parameter values in Tilman (1977) for two algae, Asterionella and Cyclotella, competing for phosphate.. 108 consumer 1 107 Concentration (no. or micromoles / L) 36 106 105 consumer 2 104 103 102 101 100 10–1 resource 10–2 0 10 20 30 40 50 60 70 80 90 100 Time (Fig.

Global stability is a more general property that implies that a system will return to the equilibrium point from any initial population value. There is a loose, and perhaps too facile, analogy between the prolonged persistence of natural populations, and the existence of a locally stable equilibrium in models like this. Later we will see that under some circumstances model populations without a locally stable equilibrium can persist for a very long period of time. MECHANISMS, MODELS, AND NICHES Fig.

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Community Ecology, 2nd Edition by Peter J. Morin(auth.)

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