Short-term effects of harvest technique and mechanical site preparation on arthropod communities in jack pine plantations

Arthropods play a key role in the functioning of forest ecosystems and contribute to biological diversity. However, the influence of current silvicultural practices on arthropod communities is little known in jack pine (Pinus banksiana) forests, a forest type comprising a major portion of the Canadi...

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Detalles Bibliográficos
Autor principal: Bellocq, Maria Isabel
Publicado: 2001
Materias:
Arthropods
Forest
Harvest technique
Jack pine
Site preparation
arthropod
boreal forest
community structure
ecological impact
harvesting
silviculture
Canada
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1366638X_v5_n3_p187_Bellocq
http://hdl.handle.net/20.500.12110/paper_1366638X_v5_n3_p187_Bellocq
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_1366638X_v5_n3_p187_Bellocq
record_format dspace
spelling paper:paper_1366638X_v5_n3_p187_Bellocq2023-06-08T16:12:02Z Short-term effects of harvest technique and mechanical site preparation on arthropod communities in jack pine plantations Bellocq, Maria Isabel Arthropods Forest Harvest technique Jack pine Site preparation arthropod boreal forest community structure ecological impact harvesting silviculture Canada Arthropods play a key role in the functioning of forest ecosystems and contribute to biological diversity. However, the influence of current silvicultural practices on arthropod communities is little known in jack pine (Pinus banksiana) forests, a forest type comprising a major portion of the Canadian boreal forest. In this study, the effects of silvicultural treatments on arthropod communities were compared to identify those treatments that minimize ecological impacts on arthropods. The influence of harvesting techniques and mechanical site preparations on insect family richness and abundance of arthropods (total, by orders and by trophic groups) was examined in young (three-year-old) jack pine plantations of northern Ontario. Each of the following treatments were conducted in three plots: (1) tree length harvest and trenching; (2) full tree harvest and trenching; (3) full tree harvest and blading; and (4) full tree harvest and no site preparation. Arthropods were collected using sweepnets and pitfall traps over two years. Blading significantly reduced insect family richness, the total abundance of arthropods, abundance of Orthoptera, Heteroptera, Hymenoptera, Diptera, insect larvae, and plant feeders when compared to the other treatments. The use of either full tree or tree length harvesting had similar short-term effects on family richness and the abundance of arthropods. Arthropod diversity declined with increasing post-harvest site disturbance. These results suggest that arthropod communities in the understory and on the ground are reduved most on sites mechanically prepared by blading, but are similar under conditions immediately following either full tree or tree length harvesting. The implications for regenerating jack pine in the boreal forest are discussed. Fil:Bellocq, M.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2001 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1366638X_v5_n3_p187_Bellocq http://hdl.handle.net/20.500.12110/paper_1366638X_v5_n3_p187_Bellocq
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Arthropods
Forest
Harvest technique
Jack pine
Site preparation
arthropod
boreal forest
community structure
ecological impact
harvesting
silviculture
Canada
spellingShingle Arthropods
Forest
Harvest technique
Jack pine
Site preparation
arthropod
boreal forest
community structure
ecological impact
harvesting
silviculture
Canada
Bellocq, Maria Isabel
Short-term effects of harvest technique and mechanical site preparation on arthropod communities in jack pine plantations
topic_facet Arthropods
Forest
Harvest technique
Jack pine
Site preparation
arthropod
boreal forest
community structure
ecological impact
harvesting
silviculture
Canada
description Arthropods play a key role in the functioning of forest ecosystems and contribute to biological diversity. However, the influence of current silvicultural practices on arthropod communities is little known in jack pine (Pinus banksiana) forests, a forest type comprising a major portion of the Canadian boreal forest. In this study, the effects of silvicultural treatments on arthropod communities were compared to identify those treatments that minimize ecological impacts on arthropods. The influence of harvesting techniques and mechanical site preparations on insect family richness and abundance of arthropods (total, by orders and by trophic groups) was examined in young (three-year-old) jack pine plantations of northern Ontario. Each of the following treatments were conducted in three plots: (1) tree length harvest and trenching; (2) full tree harvest and trenching; (3) full tree harvest and blading; and (4) full tree harvest and no site preparation. Arthropods were collected using sweepnets and pitfall traps over two years. Blading significantly reduced insect family richness, the total abundance of arthropods, abundance of Orthoptera, Heteroptera, Hymenoptera, Diptera, insect larvae, and plant feeders when compared to the other treatments. The use of either full tree or tree length harvesting had similar short-term effects on family richness and the abundance of arthropods. Arthropod diversity declined with increasing post-harvest site disturbance. These results suggest that arthropod communities in the understory and on the ground are reduved most on sites mechanically prepared by blading, but are similar under conditions immediately following either full tree or tree length harvesting. The implications for regenerating jack pine in the boreal forest are discussed.
author Bellocq, Maria Isabel
author_facet Bellocq, Maria Isabel
author_sort Bellocq, Maria Isabel
title Short-term effects of harvest technique and mechanical site preparation on arthropod communities in jack pine plantations
title_short Short-term effects of harvest technique and mechanical site preparation on arthropod communities in jack pine plantations
title_full Short-term effects of harvest technique and mechanical site preparation on arthropod communities in jack pine plantations
title_fullStr Short-term effects of harvest technique and mechanical site preparation on arthropod communities in jack pine plantations
title_full_unstemmed Short-term effects of harvest technique and mechanical site preparation on arthropod communities in jack pine plantations
title_sort short-term effects of harvest technique and mechanical site preparation on arthropod communities in jack pine plantations
publishDate 2001
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1366638X_v5_n3_p187_Bellocq
http://hdl.handle.net/20.500.12110/paper_1366638X_v5_n3_p187_Bellocq
work_keys_str_mv AT bellocqmariaisabel shorttermeffectsofharvesttechniqueandmechanicalsitepreparationonarthropodcommunitiesinjackpineplantations
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