Assessing Forest Change in Human Impacted Forests

dc.contributor.authorNagendra, Harini
dc.contributor.authorOstrom, Elinor
dc.date.accessioned2011-04-06T19:26:35Z
dc.date.available2011-04-06T19:26:35Z
dc.date.issued2011en_US
dc.description.abstract"Ecologists and practitioners have conventionally used forest plots or transects for monitoring changes in attributes of forest condition over time. Yet, given the difficulty in collecting such data, conservation practitioners frequently rely on the judgment of foresters and forest users for evaluating changes. These methods are rarely compared. We use a dataset of 53 forests in five countries to compare assessments of forest change from forest plots, and forester and user evaluations of changes in forest density. We find that user assessments of changes in tree density are strongly and significantly related to assessments of change derived from statistical analyses of randomly distributed forest plots. User assessments of change in density at the shrub/sapling level are also related to assessments derived from statistical evaluations of vegetation plots, but this relationship is not as strong, and only weakly significant. Evaluations of change by professional foresters are much more difficult to arrive at, as foresters are not familiar with changes in a number of local areas, and can instead better provide valid single-time comparisons a forest with other areas in a similar ecological zone. We conclude that in forests where local users are present, and capable of accessing the entire forest without restrictions on movement, they can provide reliable assessments of changes in tree density. Forest users are less able to accurately identify spatially variable changes in density at the shrub/sapling layer, and assessments of human disturbance and regeneration at this level may require supplementation by vegetation analysis."en_US
dc.identifier.citationconfdatesJanuary 10-14en_US
dc.identifier.citationconferenceSustaining Commons: Sustaining Our Future, the Thirteenth Biennial Conference of the International Association for the Study of the Commonsen_US
dc.identifier.citationconflocHyderabad, Indiaen_US
dc.identifier.urihttps://hdl.handle.net/10535/7180
dc.languageEnglishen_US
dc.subjectbiodiversityen_US
dc.subjectforestsen_US
dc.subjectmonitoring and sanctioningen_US
dc.subjectchangeen_US
dc.subjectcommunity forestryen_US
dc.subject.sectorForestryen_US
dc.titleAssessing Forest Change in Human Impacted Forestsen_US
dc.typeConference Paperen_US
dc.type.methodologyCase Studyen_US
dc.type.publishedunpublisheden_US
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