2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/21/2019 | 10:00 AM - 10:15 AM | DELAYED BIOLOGICAL RECOVERY AFTER RESTORATION – A RESULT OF NEGATIVE RESISTANCE AND RESILIENCE? | 150 G
DELAYED BIOLOGICAL RECOVERY AFTER RESTORATION – A RESULT OF NEGATIVE RESISTANCE AND RESILIENCE?
Resistance and resilience (R&R) are terms used to describe the capacity of an ecosystem to withstand and recover from a perturbation. R&R are commonly associated with healthy communities able to tolerate and recuperate from perturbations (positive R&R). However, degraded ecosystems can also be resistant and resilient to perturbations (negative R&R) making them restoration-resistant. We hypothesize that this resistance to restoration is a consequence of communities becoming dominated by species with traits such as trophic generalism which enhance food-web stability. To identify properties of restoration-resistant communities, we conducted a literature synthesis focusing on studies reporting delayed biological recovery after restoration actions. We found a paucity of studies testing or reporting biotic mechanisms that likely contribute to delayed biological recovery. Moreover, most studies focused on recovery in a single trophic level, with very few considering interactions among species or across trophic levels. Nonetheless, many authors acknowledged that communities became dominated by species with traits which likely enhanced food-web stability. Despite this, tools to overcome negative R&R have not been widely developed or tested. These findings suggest we should implement restoration differently or at the very least reframe our expectations for biological recovery.
- Food Webs
- Bioassessment
- Invertebrate
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Presenters/Authors
Helen Warburton
(), University of Canterbury, helen.warburton@canterbury.ac.nz;
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Kristy Hogsden
(), NIWA, kristy.hogsden@niwa .co.nz;
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Catherine Febria
(), University of Windsor, Catherine.Febria@uwindsor.ca;
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Elizabeth Graham
(), NIWA, Elizabeth.Graham@niwa.co.nz;
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Isabelle Barrett
(), University of Canterbury, issie.barrett@canterbury.ac.nz;
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Jon Harding
(), University Canterbury, jon.harding@canterbry.ac.nz;
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Angus McIntosh
(), University of Canterbury, angus.mcintosh@canterbury.ac.nz;
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