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OOS-43: Complex consequences of spatial subsidies to food webs
Thursday,
August 11, 8 AM - 11:30 AM, Meeting Rooms 511b and 511e, Level 5, Palais
des congrès de Montréal
Organizers:
Johanna
Kraus (jk5H@virginia.edu),
Wendy Anderson
Description:
The
movement of animals and nutrients across landscape boundaries is ubiquitous, but
their effects on food webs have been traditionally under-appreciated. The past
10 years of empirical studies have revealed that allochthonous input can
influence food web structure by increasing the density of consumers and by
altering the content of consumer diets. The current challenge is to understand
the more complex food web consequences of these subsidies, such as apparent
competition, trophic cascades, intra-guild predation, the impacts of subsidies
to multiple trophic levels, and two-way flows across boundaries. In this
session, leading community, ecosystem, and theoretical ecologists examine these
complex consequences at a variety of aquatic-terrestrial interfaces and at
multiple spatial scales. This session will highlight recent developments and
generalities in understanding indirect effects in spatially subsidized food
webs, as well as enhance communication and multidisciplinary collaboration in a
growing field.
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