caa a22 4500 445383445 CHVBK 20180317143024.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10021-010-9395-5 doi (NATIONALLICENCE)springer-10.1007/s10021-010-9395-5 Modelling Spatial Interactions Among Fire, Spruce Budworm, and Logging in the Boreal Forest [Elektronische Daten] [Patrick James, M.-J. Fortin, B. Sturtevant, A. Fall, D. Kneeshaw] In the boreal forest, fire, insects, and logging all affect spatial patterns in forest age and species composition. In turn, spatial legacies in age and composition can facilitate or constrain further disturbances and have important consequences for forest spatial structure and sustainability. However, the complex three-way interactions among fire, insects, and logging and their combined effects on forest spatial structure have seldom been investigated. We used a spatially explicit landscape simulation model to examine these interactions. Specifically, we investigated how the amount and the spatial scale of logging (cutblock size) in combination with succession, fire, and spruce budworm outbreaks affect area burned and area defoliated. Simulations included 30 replicates of 300years for each of 19 different disturbance scenarios. More disturbances increased both the fragmentation and the proportion of coniferous species and imposed additional constraints on the extent of each disturbance. We also found that harvesting legacies affect fire and budworm differently due to differences in forest types consumed by each disturbance. Contrary to expectation, budworm defoliation did not affect area burned at the temporal scales studied and neither amount of logging nor cutblock size influenced defoliation extent. Logging increased fire size through conversion of more of the landscape to early seral, highly flammable forest types. Although logging increased the amount of budworm host species, spruce budworm caused mortality was reduced due to reductions in forest age. In general, we found that spatial legacies do not influence all disturbances equally and the duration of a spatial legacy is limited when multiple disturbances are present. Further information on post-disturbance succession is still needed to refine our understanding of long-term disturbance interactions. Springer Science+Business Media, LLC, 2010 dynamic feedbacks nationallicence forest management nationallicence landscape legacies nationallicence forest disturbance nationallicence spatial modelling nationallicence landscape pattern metrics nationallicence James Patrick Faculty of Forestry, University of Toronto, 33 Willcocks St., M5S 3B3, Toronto, Ontario, Canada aut Fortin M.-J Department of Ecology and Evolutionary Biology, University of Toronto, 25 Harbord St., M5S 3G5, Toronto, Ontario, Canada aut Sturtevant B. USDA Forest Service, 5985 Hwy K, 54501, Rhinelander, Wisconsin, USA aut Fall A. Gowlland Technologies Ltd., Tucker Bay Road, V0R 2J0, Lasqueti Island, British Columbia, Canada aut Kneeshaw D. Département des Sciences Biologiques, Université du Québec à Montréal, Case Postale 8888, Succursale Centre-Ville, H3C 3P8, Montréal, Quebec, Canada aut Ecosystems Springer-Verlag 14/1(2011-01-01), 60-75 1432-9840 14:1<60 2011 14 10021 https://doi.org/10.1007/s10021-010-9395-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10021-010-9395-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- James Patrick Faculty of Forestry, University of Toronto, 33 Willcocks St., M5S 3B3, Toronto, Ontario, Canada aut NATIONALLICENCE 700 1- Fortin M.-J Department of Ecology and Evolutionary Biology, University of Toronto, 25 Harbord St., M5S 3G5, Toronto, Ontario, Canada aut NATIONALLICENCE 700 1- Sturtevant B. USDA Forest Service, 5985 Hwy K, 54501, Rhinelander, Wisconsin, USA aut NATIONALLICENCE 700 1- Fall A. Gowlland Technologies Ltd., Tucker Bay Road, V0R 2J0, Lasqueti Island, British Columbia, Canada aut NATIONALLICENCE 700 1- Kneeshaw D. Département des Sciences Biologiques, Université du Québec à Montréal, Case Postale 8888, Succursale Centre-Ville, H3C 3P8, Montréal, Quebec, Canada aut NATIONALLICENCE 773 0- Ecosystems Springer-Verlag 14/1(2011-01-01), 60-75 1432-9840 14:1<60 2011 14 10021 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer