Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2018.02.029 |
Long-term changes in boreal forest occupancy within regenerating harvest units | |
Leston, Lionel1; Bayne, Erin1; Schmiegelow, Fiona2 | |
2018-08-01 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2018 |
卷号 | 421页码:40-53 |
文章类型 | Article;Proceedings Paper |
语种 | 英语 |
国家 | Canada |
英文摘要 | Many observational and short-term experimental studies have examined how boreal bird communities respond to forest harvesting. However, there are virtually no longitudinal studies that have assessed long-term effects of forest harvesting on boreal birds. The Calling Lake Fragmentation Study is a long-term experiment in northern Alberta's boreal forest, established in 1993. We have 24 years of avian point count data (1993-2016) from this study site, giving us the opportunity to study how the boreal songbird community has responded over 23 years to forest regeneration after harvesting. We ran multi-season occupancy models of 51 species surveyed at 72 stations (8 stations per 40-ha sampling area) within 3 unharvested forest sites, 3 harvest units that were cut in 1984 and treated to enhance conifer survival, and 3 harvest units that were cut in 1994 and left untreated to regenerate naturally. Eight of 21 species associated with older boreal forests (60-80 years old) used harvest units 23-33 years post-harvest. Eleven of 16 species associated with shrublands or younger forests used harvest units, before declining as harvest units regenerated, while four of 16 such species increased their probability of occupying harvest units over the monitoring period. Increased occupancy by 5 Neotropical migrants and 2 short-distance migrants was associated with increased El Nino weather events preceding a given breeding season. We also found evidence that increased occupancy of 3 species within harvest units was preceded by and correlated with increased occupancy by those species in unharvested forests, while occupancy of 4 species in unharvested forests was preceded by and con-elated with increased occupancy within harvest units. Our results indicate the importance of unharvested forests for some boreal songbird species, the utility of longitudinal studies with controls for assessing changes in occupancy due to forest regeneration in harvest units versus factors operating at larger spatial scales, and the potential of harvest units to serve as habitat for boreal birds up to 33 years post-harvest. |
英文关键词 | Multi-season occupancy model Boreal forest Birds Forestry Regeneration |
领域 | 气候变化 |
收录类别 | SCI-E ; ISTP |
WOS记录号 | WOS:000432758000005 |
WOS关键词 | BIRD COMMUNITIES ; SPRUCE BUDWORM ; NORTH-AMERICA ; WESTERN ; MODELS ; SONGBIRDS ; ALBERTA |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/23300 |
专题 | 气候变化 |
作者单位 | 1.Univ Alberta, Dept Biol Sci, CW 405,Biol Sci Bldg,11455 Saskatchewan Dr, Edmonton, AB T6G 2E9, Canada; 2.Univ Alberta, Dept Renewable Resources, Edmonton, AB, Canada |
推荐引用方式 GB/T 7714 | Leston, Lionel,Bayne, Erin,Schmiegelow, Fiona. Long-term changes in boreal forest occupancy within regenerating harvest units[J]. FOREST ECOLOGY AND MANAGEMENT,2018,421:40-53. |
APA | Leston, Lionel,Bayne, Erin,&Schmiegelow, Fiona.(2018).Long-term changes in boreal forest occupancy within regenerating harvest units.FOREST ECOLOGY AND MANAGEMENT,421,40-53. |
MLA | Leston, Lionel,et al."Long-term changes in boreal forest occupancy within regenerating harvest units".FOREST ECOLOGY AND MANAGEMENT 421(2018):40-53. |
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