LandscapeEcology vol. 11 no. 6 pp 325-338 (1996)
We address effects of large-scale forestry on landscape structure and the structure and composition of boreal bird communities in North Sweden. Specifically, we ask: after controlling for the effect of patch size, forest age and tree species composition, is there any residual effect attributable to...
Main Authors: | , , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.2.5180 http://landscape.forest.wisc.edu/landscapeecology/articles/v11i06p325.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.2.5180 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.2.5180 2023-05-15T17:40:18+02:00 LandscapeEcology vol. 11 no. 6 pp 325-338 (1996) Spb Academic Publishing Lars Edenius Johan Elmberg The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.2.5180 http://landscape.forest.wisc.edu/landscapeecology/articles/v11i06p325.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.2.5180 http://landscape.forest.wisc.edu/landscapeecology/articles/v11i06p325.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://landscape.forest.wisc.edu/landscapeecology/articles/v11i06p325.pdf boreal forest North Sweden bird community landscape clear cutting tree species composition text ftciteseerx 2016-01-07T17:18:52Z We address effects of large-scale forestry on landscape structure and the structure and composition of boreal bird communities in North Sweden. Specifically, we ask: after controlling for the effect of patch size, forest age and tree species composition, is there any residual effect attributable to the reduction in area of old forest? Pairs of landscape blocks (25 by 25 km) were selected to maximize area difference in human-induced disturbance, clear-cut as opposed to semi-natural old forest. Median distance to natural edge (wetlands, open water) from randomly selected points in forest was 250 and 200 m in high and low impact landscapes, respectively, indicating a high degree of 'natural' fragmentation of the pristine boreal landscape in the area. By contrast, median distance to clear-cut in uncut forest was 750 and 100 m, respectively. Clear-cuts in high impact landscapes were disproportionally more common in areas with contiguous forest land than in areas with spatially disjunct forest, implicating that forestry increases natural fragmentation of the landscape by subdividing larger forest tracts. Point counts along forestry roads showed that species richness and relative abundance of forest birds were higher in landscapes with low forestry impact. These differences can partly be explained by differences in age composition of forest and composition of tree species. After controlling for patch size, forest age and tree species composition, a significant effect of forestry impact remained for Sibirian species and the Tree pipit trivialis. Our results thus imply that this group of species and the Tree pipit may be sensitive to forest fragmentation. In contrast to previous Finnish studies, we found relatively small negative effects on relative abundance of species hypot. Text North Sweden Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
boreal forest North Sweden bird community landscape clear cutting tree species composition |
spellingShingle |
boreal forest North Sweden bird community landscape clear cutting tree species composition Spb Academic Publishing Lars Edenius Johan Elmberg LandscapeEcology vol. 11 no. 6 pp 325-338 (1996) |
topic_facet |
boreal forest North Sweden bird community landscape clear cutting tree species composition |
description |
We address effects of large-scale forestry on landscape structure and the structure and composition of boreal bird communities in North Sweden. Specifically, we ask: after controlling for the effect of patch size, forest age and tree species composition, is there any residual effect attributable to the reduction in area of old forest? Pairs of landscape blocks (25 by 25 km) were selected to maximize area difference in human-induced disturbance, clear-cut as opposed to semi-natural old forest. Median distance to natural edge (wetlands, open water) from randomly selected points in forest was 250 and 200 m in high and low impact landscapes, respectively, indicating a high degree of 'natural' fragmentation of the pristine boreal landscape in the area. By contrast, median distance to clear-cut in uncut forest was 750 and 100 m, respectively. Clear-cuts in high impact landscapes were disproportionally more common in areas with contiguous forest land than in areas with spatially disjunct forest, implicating that forestry increases natural fragmentation of the landscape by subdividing larger forest tracts. Point counts along forestry roads showed that species richness and relative abundance of forest birds were higher in landscapes with low forestry impact. These differences can partly be explained by differences in age composition of forest and composition of tree species. After controlling for patch size, forest age and tree species composition, a significant effect of forestry impact remained for Sibirian species and the Tree pipit trivialis. Our results thus imply that this group of species and the Tree pipit may be sensitive to forest fragmentation. In contrast to previous Finnish studies, we found relatively small negative effects on relative abundance of species hypot. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Spb Academic Publishing Lars Edenius Johan Elmberg |
author_facet |
Spb Academic Publishing Lars Edenius Johan Elmberg |
author_sort |
Spb Academic Publishing |
title |
LandscapeEcology vol. 11 no. 6 pp 325-338 (1996) |
title_short |
LandscapeEcology vol. 11 no. 6 pp 325-338 (1996) |
title_full |
LandscapeEcology vol. 11 no. 6 pp 325-338 (1996) |
title_fullStr |
LandscapeEcology vol. 11 no. 6 pp 325-338 (1996) |
title_full_unstemmed |
LandscapeEcology vol. 11 no. 6 pp 325-338 (1996) |
title_sort |
landscapeecology vol. 11 no. 6 pp 325-338 (1996) |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.2.5180 http://landscape.forest.wisc.edu/landscapeecology/articles/v11i06p325.pdf |
genre |
North Sweden |
genre_facet |
North Sweden |
op_source |
http://landscape.forest.wisc.edu/landscapeecology/articles/v11i06p325.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.2.5180 http://landscape.forest.wisc.edu/landscapeecology/articles/v11i06p325.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766141180562636800 |