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Pulsed resources and community dynamics of consumers in terrestrial ecosystems
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Abstract
Many terrestrial ecosystems are characterized by intermittent production of abundant
resources for consumers, such as mast seeding and pulses of primary production following
unusually heavy rains. Recent research is revealing patterns in the ways that consumer
communities respond to these pulsed resources. Studies of the ramifying effects of
pulsed resources on consumer communities integrate 'top-down' and 'bottom-up' approaches
to community dynamics, and illustrate how the strength of species interactions can
change dramatically through time.