Ecological requirements of the threetoed woodpecker (Picoides tridactylus L.) in boreal forests of northern Sweden
The three-toed woodpecker (Picoides tridactylus L.) is a forest specialist bird, highly dependent on dead and decaying trees for foraging. I investigated the occurrence of the three-toed woodpecker in relation to vegetation characteristics including dead wood in the boreal forests of northern Sweden...
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| Formato: | H2 |
| Lenguaje: | Inglés |
| Publicado: |
SLU/Dept. of Wildlife, Fish and Environmental Studies
2016
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| Materias: |
| _version_ | 1855571406650081280 |
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| author | Balasso, Michelle |
| author_browse | Balasso, Michelle |
| author_facet | Balasso, Michelle |
| author_sort | Balasso, Michelle |
| collection | Epsilon Archive for Student Projects |
| description | The three-toed woodpecker (Picoides tridactylus L.) is a forest specialist bird, highly dependent on dead and decaying trees for foraging. I investigated the occurrence of the three-toed woodpecker in relation to vegetation characteristics including dead wood in the boreal forests of northern Sweden. Forty old forest stands were studied, were I collected data on living and dead trees, and related them to the occurrence of the three-toed woodpecker during the breeding season. Logistic regression was used to model the occurrence of the three-toed woodpecker in relation to habitat variables. I found that of all variables taken in consideration, the amount of freshly dead Norway spruce (Picea abies L.) contributed most to explaining the occurrence of three-toed woodpecker. The probability to find three-toed woodpecker in a stand increased with the basal area of freshly dead spruce, the size of the stand, the basal area of living deciduous trees and that of dying Scots pines. A probability of occurrence of 0.5 corresponded to 1.8 m²/ha of freshly dead spruce. The results refined the knowledge about three-toed woodpecker requirements, underlying the importance of spruce for foraging, and adding information on which decay stage is more preferable for the species. Taking in consideration the fact that the species is declining and included in the Swedish Red List, this study will help defining future targets for conservation management for the three-toed woodpecker. |
| format | H2 |
| id | RepoSLU8777 |
| institution | Swedish University of Agricultural Sciences |
| language | Inglés |
| publishDate | 2016 |
| publishDateSort | 2016 |
| publisher | SLU/Dept. of Wildlife, Fish and Environmental Studies |
| publisherStr | SLU/Dept. of Wildlife, Fish and Environmental Studies |
| record_format | eprints |
| spelling | RepoSLU87772016-02-09T13:58:48Z Ecological requirements of the threetoed woodpecker (Picoides tridactylus L.) in boreal forests of northern Sweden Habitatkrav hos den tretåiga hackspetten (Picoides tridactylus L.) i norra Sveriges boreala skogar Balasso, Michelle three-toed woodpecker dead wood dead spruce snags habitat requirements boreal forest forest management The three-toed woodpecker (Picoides tridactylus L.) is a forest specialist bird, highly dependent on dead and decaying trees for foraging. I investigated the occurrence of the three-toed woodpecker in relation to vegetation characteristics including dead wood in the boreal forests of northern Sweden. Forty old forest stands were studied, were I collected data on living and dead trees, and related them to the occurrence of the three-toed woodpecker during the breeding season. Logistic regression was used to model the occurrence of the three-toed woodpecker in relation to habitat variables. I found that of all variables taken in consideration, the amount of freshly dead Norway spruce (Picea abies L.) contributed most to explaining the occurrence of three-toed woodpecker. The probability to find three-toed woodpecker in a stand increased with the basal area of freshly dead spruce, the size of the stand, the basal area of living deciduous trees and that of dying Scots pines. A probability of occurrence of 0.5 corresponded to 1.8 m²/ha of freshly dead spruce. The results refined the knowledge about three-toed woodpecker requirements, underlying the importance of spruce for foraging, and adding information on which decay stage is more preferable for the species. Taking in consideration the fact that the species is declining and included in the Swedish Red List, this study will help defining future targets for conservation management for the three-toed woodpecker. SLU/Dept. of Wildlife, Fish and Environmental Studies 2016 H2 eng https://stud.epsilon.slu.se/8777/ |
| spellingShingle | three-toed woodpecker dead wood dead spruce snags habitat requirements boreal forest forest management Balasso, Michelle Ecological requirements of the threetoed woodpecker (Picoides tridactylus L.) in boreal forests of northern Sweden |
| title | Ecological requirements of the threetoed woodpecker (Picoides tridactylus L.) in boreal forests of northern Sweden |
| title_full | Ecological requirements of the threetoed woodpecker (Picoides tridactylus L.) in boreal forests of northern Sweden |
| title_fullStr | Ecological requirements of the threetoed woodpecker (Picoides tridactylus L.) in boreal forests of northern Sweden |
| title_full_unstemmed | Ecological requirements of the threetoed woodpecker (Picoides tridactylus L.) in boreal forests of northern Sweden |
| title_short | Ecological requirements of the threetoed woodpecker (Picoides tridactylus L.) in boreal forests of northern Sweden |
| title_sort | ecological requirements of the threetoed woodpecker (picoides tridactylus l.) in boreal forests of northern sweden |
| topic | three-toed woodpecker dead wood dead spruce snags habitat requirements boreal forest forest management |