umu.sePublications
Change search
ReferencesLink to record
Permanent link

Direct link
Factors driving structure of natural and anthropogenic forest edges from temperate to boreal ecosystems
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
Show others and affiliations
2016 (English)In: Journal of Vegetation Science, ISSN 1100-9233, E-ISSN 1654-1103, Vol. 27, no 3, 482-492 p.Article in journal (Refereed) PublishedText
Abstract [en]

Questions What factors control broad-scale variation in edge length and three-dimensional boundary structure for a large region extending across two biomes? What is the difference in structure between natural and anthropogenic edges? Location Temperate and boreal forests across all of Sweden, spanning latitudes 55-69 degrees N. MethodsWe sampled more than 2000 forest edges using line intersect sampling in a monitoring programme (National Inventory of Landscapes in Sweden). We compared edge length, ecosystem attributes (width of adjacent ecosystem, canopy cover, canopy height, patch contrast in canopy height, forest type) and boundary attributes (profile, abruptness, shape) of natural edges (lakeshore, wetland) with anthropogenic edges (clear-cut, agricultural, linear disturbance) in five regions. Results Anthropogenic edges were nearly twice as abundant as natural edges. Length of anthropogenic edges was largest in southern regions, while the abundance of natural edges increased towards the north. Edge types displayed unique spectrums of boundary structures, but abrupt edges dominated, constituting 72% of edge length. Anthropogenic edges were more abrupt than natural edges; wetland edges had the most gradual and sinuous boundaries. Canopy cover, canopy height, patch contrast and forest type depended on region, whereas overall boundary abruptness and shape showed no regional pattern. Patch contrast was related to temperature sum (degree days5 degrees C), suggesting that regional variability can be predicted from climate-controlled forest productivity. Boundary abruptness was coupled with the underlying environmental gradient, land use and forest type, with higher variability in deciduous than in conifer forest. Conclusions Edge origin, land use, climate and tree species are main drivers of broad-scale variability in forest edge structure. Our findings have important implications for developing ecological theory that can explain and predict how different factors affect forest edge structure, and help to understand how land use and climate change affect biodiversity at forest edges.

Place, publisher, year, edition, pages
2016. Vol. 27, no 3, 482-492 p.
Keyword [en]
Agricultural edge, Boundary abruptness, Clear-cut edge, Climate, Edge influence, Edge length, Lakeshore edge, Land use, Linear disturbance edge, Patch contrast, Tree species, Wetland edge
National Category
Ecology
Identifiers
URN: urn:nbn:se:umu:diva-121566DOI: 10.1111/jvs.12387ISI: 000375147500007OAI: oai:DiVA.org:umu-121566DiVA: diva2:944843
Available from: 2016-06-30 Created: 2016-06-03 Last updated: 2016-06-30Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Esseen, Per-Anders
By organisation
Department of Ecology and Environmental Sciences
In the same journal
Journal of Vegetation Science
Ecology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 26 hits
ReferencesLink to record
Permanent link

Direct link