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OOS-10:
Reducing habitat fragmentation by roads: A comparison of measures and
scales
Monday,
August 8, 1:30 PM - 5 PM, Meeting Rooms 511b and 511e, Level 5, Palais
des congrès de Montréal
Organizers:
Jochen Jaeger (jochen.jaeger@env.ethz.ch),
Günther Jeager, Lenore Fahrig, Wolfgang Haber
Description:
Concern
is growing over the fragmentation of habitats by transportation infrastructure.
The next step after the investigation of the effects was the implementation of
measures to avoid, minimize, mitigate, and compensate the negative effects of
roads (e.g., through the removal of roads, building of overpasses and
underpasses, restoration of networks of wildlife corridors, and design of less
fragmenting road network patterns such as bundling of traffic lines). However,
it is still unknown what measures are the most effective in terms of restoring
ecological processes among habitat patches and across landscapes. Examples of
criteria for their evaluation are the reduction of road-kill frequencies,
increased passage frequencies, presence of species on both sides of the road,
genetic exchange across the road, recovery of lowered reproductive rates and
skewed sex ratios, and re-colonization success. The sseesion brings together the
“Father of Road Ecology”, Richard Forman, with researchers presenting
current methods and results on the success of various mitigation measures on
multiple scales.
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