An Estimate of Nest Loss in Canada Due to Industrial Forestry Operations
Annual loss of nests by industrial (nonwoodlot) forest harvesting in Canada was estimated using two avian point-count data sources: (1) the Boreal Avian Monitoring Project (BAM) dataset for provinces operating in this biome and (2) available data summarized for the major (nonboreal) forest regions o...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Resilience Alliance
2013-12-01
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| Series: | Avian Conservation and Ecology |
| Subjects: | |
| Online Access: | http://www.ace-eco.org/vol8/iss2/art5/ |
| _version_ | 1828082531675668480 |
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| author | Keith A. Hobson Amy G. Wilson Steven L. Van Wilgenburg Erin M. Bayne |
| author_facet | Keith A. Hobson Amy G. Wilson Steven L. Van Wilgenburg Erin M. Bayne |
| author_sort | Keith A. Hobson |
| collection | DOAJ |
| description | Annual loss of nests by industrial (nonwoodlot) forest harvesting in Canada was estimated using two avian point-count data sources: (1) the Boreal Avian Monitoring Project (BAM) dataset for provinces operating in this biome and (2) available data summarized for the major (nonboreal) forest regions of British Columbia. Accounting for uncertainty in the proportion of harvest occurring during the breeding season and in avian nesting densities, our estimate ranges from 616 thousand to 2.09 million nests. Estimates of the impact on numbers of individuals recruited into the adult breeding population were made based on the application of survivorship estimates at various stages of the life cycle. Future improvements to this estimate are expected as better and more extensive avian breeding pair density estimates become available and as provincial forestry statistics become more refined, spatially and temporally. The effect of incidental take due to forestry is not uniform and is disproportionately centered in the southern boreal. Those species whose ranges occur primarily in these regions are most at risk for industrial forestry in general and for incidental take in particular. Refinements to the nest loss estimate for industrial forestry in Canada will be achieved primarily through the provision of more accurate estimates of the area of forest harvested annually during the breeding season stratified by forest type and Bird Conservation Region (BCR). A better understanding of survivorship among life-history stages for forest birds would also allow for better modeling of the effect of nest loss on adult recruitment. Finally, models are needed to project legacy effects of forest harvesting on avian populations that take into account forest succession and accompanying cumulative effects of landscape change. |
| first_indexed | 2024-04-11T03:53:29Z |
| format | Article |
| id | doaj.art-dbde1fe385f44bc9be48844e42e735fe |
| institution | Directory Open Access Journal |
| issn | 1712-6568 |
| language | English |
| last_indexed | 2024-04-11T03:53:29Z |
| publishDate | 2013-12-01 |
| publisher | Resilience Alliance |
| record_format | Article |
| series | Avian Conservation and Ecology |
| spelling | doaj.art-dbde1fe385f44bc9be48844e42e735fe2023-01-02T01:29:03ZengResilience AllianceAvian Conservation and Ecology1712-65682013-12-0182510.5751/ACE-00583-080205583An Estimate of Nest Loss in Canada Due to Industrial Forestry OperationsKeith A. Hobson0Amy G. Wilson1Steven L. Van Wilgenburg2Erin M. Bayne3S&T Branch, Wildlife and Landscape Science DirectorateDepartment of Veterinary Medicine, University of SaskatchewanEnvironment CanadaDepartment of Biological Sciences, University of AlbertaAnnual loss of nests by industrial (nonwoodlot) forest harvesting in Canada was estimated using two avian point-count data sources: (1) the Boreal Avian Monitoring Project (BAM) dataset for provinces operating in this biome and (2) available data summarized for the major (nonboreal) forest regions of British Columbia. Accounting for uncertainty in the proportion of harvest occurring during the breeding season and in avian nesting densities, our estimate ranges from 616 thousand to 2.09 million nests. Estimates of the impact on numbers of individuals recruited into the adult breeding population were made based on the application of survivorship estimates at various stages of the life cycle. Future improvements to this estimate are expected as better and more extensive avian breeding pair density estimates become available and as provincial forestry statistics become more refined, spatially and temporally. The effect of incidental take due to forestry is not uniform and is disproportionately centered in the southern boreal. Those species whose ranges occur primarily in these regions are most at risk for industrial forestry in general and for incidental take in particular. Refinements to the nest loss estimate for industrial forestry in Canada will be achieved primarily through the provision of more accurate estimates of the area of forest harvested annually during the breeding season stratified by forest type and Bird Conservation Region (BCR). A better understanding of survivorship among life-history stages for forest birds would also allow for better modeling of the effect of nest loss on adult recruitment. Finally, models are needed to project legacy effects of forest harvesting on avian populations that take into account forest succession and accompanying cumulative effects of landscape change.http://www.ace-eco.org/vol8/iss2/art5/adult recruitmentborealcommercial forestryincidental lossnests |
| spellingShingle | Keith A. Hobson Amy G. Wilson Steven L. Van Wilgenburg Erin M. Bayne An Estimate of Nest Loss in Canada Due to Industrial Forestry Operations Avian Conservation and Ecology adult recruitment boreal commercial forestry incidental loss nests |
| title | An Estimate of Nest Loss in Canada Due to Industrial Forestry Operations |
| title_full | An Estimate of Nest Loss in Canada Due to Industrial Forestry Operations |
| title_fullStr | An Estimate of Nest Loss in Canada Due to Industrial Forestry Operations |
| title_full_unstemmed | An Estimate of Nest Loss in Canada Due to Industrial Forestry Operations |
| title_short | An Estimate of Nest Loss in Canada Due to Industrial Forestry Operations |
| title_sort | estimate of nest loss in canada due to industrial forestry operations |
| topic | adult recruitment boreal commercial forestry incidental loss nests |
| url | http://www.ace-eco.org/vol8/iss2/art5/ |
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