DSpace Repository

Temporal Changes in Randomness of Bird Communities across Central Europe

Show simple item record

dc.contributor.author Renner, Swen C. en
dc.contributor.author Gossner, Martin M. en
dc.contributor.author Kahl, Tiemo en
dc.contributor.author Kalko, Elisabeth K. V. en
dc.contributor.author Weisser, Wolfgang W. en
dc.contributor.author Fischer, Markus en
dc.contributor.author Allan, Eric en
dc.date.accessioned 2015-04-20T15:15:50Z
dc.date.available 2015-04-20T15:15:50Z
dc.date.issued 2014
dc.identifier.citation Renner, Swen C., Gossner, Martin M., Kahl, Tiemo, Kalko, Elisabeth K. V., Weisser, Wolfgang W., Fischer, Markus, and Allan, Eric. 2014. "Temporal Changes in Randomness of Bird Communities across Central Europe." <em>PloS One</em>. 9 (11):<a href="https://doi.org/10.1371/journal.pone.0112347">https://doi.org/10.1371/journal.pone.0112347</a> en
dc.identifier.issn 1932-6203
dc.identifier.uri http://hdl.handle.net/10088/25572
dc.description.abstract Many studies have examined whether communities are structured by random or deterministic processes, and both are likely to play a role, but relatively few studies have attempted to quantify the degree of randomness in species composition. We quantified, for the first time, the degree of randomness in forest bird communities based on an analysis of spatial autocorrelation in three regions of Germany. The compositional dissimilarity between pairs of forest patches was regressed against the distance between them. We then calculated the y-intercept of the curve, i.e. the &#39;nugget&#39;, which represents the compositional dissimilarity at zero spatial distance. We therefore assume, following similar work on plant communities, that this represents the degree of randomness in species composition. We then analysed how the degree of randomness in community composition varied over time and with forest management intensity, which we expected to reduce the importance of random processes by increasing the strength of environmental drivers. We found that a high portion of the bird community composition could be explained by chance (overall mean of 0.63), implying that most of the variation in local bird community composition is driven by stochastic processes. Forest management intensity did not consistently affect the mean degree of randomness in community composition, perhaps because the bird communities were relatively insensitive to management intensity. We found a high temporal variation in the degree of randomness, which may indicate temporal variation in assembly processes and in the importance of key environmental drivers. We conclude that the degree of randomness in community composition should be considered in bird community studies, and the high values we find may indicate that bird community composition is relatively hard to predict at the regional scale. en
dc.relation.ispartof PloS One en
dc.title Temporal Changes in Randomness of Bird Communities across Central Europe en
dc.type Journal Article en
dc.identifier.srbnumber 131067
dc.identifier.doi 10.1371/journal.pone.0112347
rft.jtitle PloS One
rft.volume 9
rft.issue 11
dc.description.SIUnit NZP en
dc.description.SIUnit Peer-reviewed en

Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search DSpace


My Account