Hoverfly (syrphidae) communities respond to varying structural retention after harvesting in Canadian peatland black spruce forests
Variable retention harvesting (VRH), in which trees are removed at variable intensity and spatial configuration across the landscape, retains greater forest structural heterogeneity than traditional clear-cut harvesting and is being recommended as an alternative for sustainable management of the bor...
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| Formato: | Artículo publishedVersion |
| Lenguaje: | Inglés |
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2007
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_0046225X_v36_n2_p308_Deans |
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paperaa:paper_0046225X_v36_n2_p308_Deans2023-06-12T16:45:39Z Hoverfly (syrphidae) communities respond to varying structural retention after harvesting in Canadian peatland black spruce forests Environ. Entomol. 2007;36(2):308-318 Deans, A.M. Smith, S.M. Malcolm, J.R. Crins, W.J. Bellocq, M.I. Boreal forest Functional assemblages Species richness Syrphidae Variable retention harvesting abundance boreal forest community composition community response coniferous forest fly harvesting peatland species richness animal article Canada environmental protection female fire fly forestry growth, development and aging male methodology physiology population dynamics population growth species difference spruce Animals Conservation of Natural Resources Diptera Female Fires Forestry Male Ontario Picea Population Dynamics Population Growth Species Specificity Canada North America Diptera Picea mariana Platycheirus rosarum Syrphidae Toxomerus Xylota annulifera Variable retention harvesting (VRH), in which trees are removed at variable intensity and spatial configuration across the landscape, retains greater forest structural heterogeneity than traditional clear-cut harvesting and is being recommended as an alternative for sustainable management of the boreal forest. Little is known about its effects on forest fauna; thus, we studied the influence of one type of VRH (harvesting with advanced regeneration [HARP]) on the Syrphidae (Diptera) community in northern Ontario forests of peatland black spruce (Picea mariana). We examined the effects of varying structural retention (from unharvested through partial retention to clear-cut) on syrphid species richness and abundance, and abundance of functional assemblages. Greater species richness and population abundances were found generally in harvested than in unharvested forests. Overall species richness and the abundance of four species (Platycheirus rosarum, Toxomerus marginatum, Xylota annulifera, and X. tuberculata) and larval predators were all higher in both clear-cut sites and those with structural retention than in unharvested sites. Similarly, overall species richness and the abundance of nine species were higher in clear-cut than in unharvested sites. Species responses are discussed in an ecological context. Differences among the levels of forest retention harvesting were relatively minor compared with those of the clear-cut and unharvested area, suggesting that local habitat characteristics may play a more important role in determining the syrphid community than the landscape configuration. However, a landscape level effect was evident, suggesting that syrphids may be useful in reflecting changes in stand structure at the landscape scale. © 2007 Entomological Society of America. Fil:Bellocq, M.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2007 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion application/pdf eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0046225X_v36_n2_p308_Deans |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| language |
Inglés |
| orig_language_str_mv |
eng |
| topic |
Boreal forest Functional assemblages Species richness Syrphidae Variable retention harvesting abundance boreal forest community composition community response coniferous forest fly harvesting peatland species richness animal article Canada environmental protection female fire fly forestry growth, development and aging male methodology physiology population dynamics population growth species difference spruce Animals Conservation of Natural Resources Diptera Female Fires Forestry Male Ontario Picea Population Dynamics Population Growth Species Specificity Canada North America Diptera Picea mariana Platycheirus rosarum Syrphidae Toxomerus Xylota annulifera |
| spellingShingle |
Boreal forest Functional assemblages Species richness Syrphidae Variable retention harvesting abundance boreal forest community composition community response coniferous forest fly harvesting peatland species richness animal article Canada environmental protection female fire fly forestry growth, development and aging male methodology physiology population dynamics population growth species difference spruce Animals Conservation of Natural Resources Diptera Female Fires Forestry Male Ontario Picea Population Dynamics Population Growth Species Specificity Canada North America Diptera Picea mariana Platycheirus rosarum Syrphidae Toxomerus Xylota annulifera Deans, A.M. Smith, S.M. Malcolm, J.R. Crins, W.J. Bellocq, M.I. Hoverfly (syrphidae) communities respond to varying structural retention after harvesting in Canadian peatland black spruce forests |
| topic_facet |
Boreal forest Functional assemblages Species richness Syrphidae Variable retention harvesting abundance boreal forest community composition community response coniferous forest fly harvesting peatland species richness animal article Canada environmental protection female fire fly forestry growth, development and aging male methodology physiology population dynamics population growth species difference spruce Animals Conservation of Natural Resources Diptera Female Fires Forestry Male Ontario Picea Population Dynamics Population Growth Species Specificity Canada North America Diptera Picea mariana Platycheirus rosarum Syrphidae Toxomerus Xylota annulifera |
| description |
Variable retention harvesting (VRH), in which trees are removed at variable intensity and spatial configuration across the landscape, retains greater forest structural heterogeneity than traditional clear-cut harvesting and is being recommended as an alternative for sustainable management of the boreal forest. Little is known about its effects on forest fauna; thus, we studied the influence of one type of VRH (harvesting with advanced regeneration [HARP]) on the Syrphidae (Diptera) community in northern Ontario forests of peatland black spruce (Picea mariana). We examined the effects of varying structural retention (from unharvested through partial retention to clear-cut) on syrphid species richness and abundance, and abundance of functional assemblages. Greater species richness and population abundances were found generally in harvested than in unharvested forests. Overall species richness and the abundance of four species (Platycheirus rosarum, Toxomerus marginatum, Xylota annulifera, and X. tuberculata) and larval predators were all higher in both clear-cut sites and those with structural retention than in unharvested sites. Similarly, overall species richness and the abundance of nine species were higher in clear-cut than in unharvested sites. Species responses are discussed in an ecological context. Differences among the levels of forest retention harvesting were relatively minor compared with those of the clear-cut and unharvested area, suggesting that local habitat characteristics may play a more important role in determining the syrphid community than the landscape configuration. However, a landscape level effect was evident, suggesting that syrphids may be useful in reflecting changes in stand structure at the landscape scale. © 2007 Entomological Society of America. |
| format |
Artículo Artículo publishedVersion |
| author |
Deans, A.M. Smith, S.M. Malcolm, J.R. Crins, W.J. Bellocq, M.I. |
| author_facet |
Deans, A.M. Smith, S.M. Malcolm, J.R. Crins, W.J. Bellocq, M.I. |
| author_sort |
Deans, A.M. |
| title |
Hoverfly (syrphidae) communities respond to varying structural retention after harvesting in Canadian peatland black spruce forests |
| title_short |
Hoverfly (syrphidae) communities respond to varying structural retention after harvesting in Canadian peatland black spruce forests |
| title_full |
Hoverfly (syrphidae) communities respond to varying structural retention after harvesting in Canadian peatland black spruce forests |
| title_fullStr |
Hoverfly (syrphidae) communities respond to varying structural retention after harvesting in Canadian peatland black spruce forests |
| title_full_unstemmed |
Hoverfly (syrphidae) communities respond to varying structural retention after harvesting in Canadian peatland black spruce forests |
| title_sort |
hoverfly (syrphidae) communities respond to varying structural retention after harvesting in canadian peatland black spruce forests |
| publishDate |
2007 |
| url |
http://hdl.handle.net/20.500.12110/paper_0046225X_v36_n2_p308_Deans |
| work_keys_str_mv |
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| _version_ |
1769810383775727616 |