Community Ecology Processes, Models, and Applications
2.1.2 Alternate equilibria Evidence is accumulating that certain large-scale complex systems may have alternate equilibria and c ...
feedbacks (DeAngeliset al.1986), regulatory feed- backs (Bagdassarianet al.2007), trophic cascades (Carpenteret al.2008) and mul ...
temperatures are thought to control abundances through their effect on recruitment (Beukemaet al. 2001). Not all modules will be ...
et al. (2008). Such studies are expected to mostly show dynamics that arise from the internal struc- ture of food webs, and have ...
0 50 100 150 0 1 2 3 4 Population abundance 5 6 0 20 40 60 80 (a) (b) 10 20 30 40 Time Time 50 Figure 2.4The dynamics of two-spe ...
Phytoplankton (mg fwt l –1 ) 0 4 8 12 80 160 X 10 0 500 1000 1500 2000 2500 Bacteria (mg fwt l –1 ) 0 2 4 6 8 Nutrients ( μmol l ...
This interaction between this grazer species and its prey can be thought of as an ‘elemental oscilla- tor’, the basic building b ...
1998; Folkeet al.2004). Systems with a high ecolog- ical resilience can be seen as particularly stable systems, whereas systems ...
et al. (2006), Marquis and Whelan (1994) and Jefferies (1999). For example, Emmons and Terborgh et al. describe the disappearanc ...
mostly still for experimental communities. For field studies, the life span of the organisms involved is often too long compared ...
across the web for the stability of the overall sys- tem. Using classic stability analysis with Lotka– Volterra interaction term ...
CHAPTER 3 Modelling the dynamics of complex food webs Ulrich Brose and Jennifer A. Dunne 3.1 Introduction The world is currently ...
evidence that food webs from different habitats have similar characteristic topologies (Williams and Martinez 2000; Camachoet al ...
population dynamics. However, it remains to be seen (1) whether our understanding of population dynamics in small modules can be ...
2005). If these results generalize to other types of modules such as omnivory modules, population dynamics in natural food webs ...
used random matrices of interactions for his analyses, which yield random network structures (‘who eats whom’) and random distr ...
FðBÞ¼ cBh 1 þcThBh ð 3 : 1 Þ whereFis the predator’s consumption rate,Bis prey biomass density,This the handling time that inclu ...
et al.2006b). In these allometric models, consumer– resource body-mass ratios define the body mass of a consumer relative to the ...
whole system (species persistence) is linked to an aspect of decreased stability of components of that system (population stabil ...
CHAPTER 4 Community assembly dynamics in space Tadashi Fukami 4.1 Introduction Species live in a complex web of interactions in ...
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