Comparison of Coleoptera assemblages from a recently burned and unburned black spruce forests of northeastern North America |
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| Authors: | Michel Saint-Germain Pierre Drapeau |
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| Institution: | a Groupe de recherche en écologie forestière interuniversitaire, Département des sciences biologiques, Université du Québec à Montréal, CP 8888, succ., Centre-ville, Montréal, Que., Canada H3C 3P8
b Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Center, 1055 rue du PEPS, CP 3800, Sainte-Foy, Que., Canada G1V 4C7 |
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| Abstract: | Several insect groups have adapted to fire cycles in boreal forests, and can efficiently use new habitats created by fire. Our study aimed at producing a first characterization of post-fire Coleoptera assemblages of black spruce forests of eastern North America. For two years, we sampled Coleoptera using flight-interception traps in burned stands of contrasting age and structure in a 5097-ha wildfire and in neighbouring unburned mature stands. More than 40 species were exclusively captured in burned stands. Time elapsed since fire and proximity of unburned forests were the most significant parameters affecting Coleoptera assemblages. Stand age and structure had limited effects on assemblage structure; the Scolytid Polygraphus rufipennis Kirby was the only common species to clearly favor older stands. Fire-associated Coleoptera assemblages found in our study area were clearly distinct from those found in similar unburned stands; we should thus be conservative in our management approach concerning recently burned stands. |
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| Keywords: | Boreal forest Forest fires Habitat selection Fire-associated Coleoptera Salvage logging |
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