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Changes in Forest Structure Drive Temperature Preferences of Boreal Understorey Plant Communities by Ditte Marie Christiansen; Lars Lønsmann Iversen; Johan Ehrlén; Kristoffer Hylander is a Environmental Science article available to read on EtoBox.

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## Abstract The local climate in forest understories can deviate substantially from ambient conditions. Moreover, forest microclimates are often characterized by cyclic changes driven by management activities such as clear‐cutting and subsequent planting. To understand how and why understorey plant communities change, both ambient climate change and temporal variation in forest structure have to be considered. We used inventories from 11,436 productive forest sites in Sweden repeated every 10th year 1993–2017 to examine how variation in forest structure influences changes in the average value of minimum and maximum temperature preferences of all species in a community, that is, community temperature indices (CTIs). We then evaluated to what extent these changes were driven by local extinctions and colonizations, respectively, and to what extent the difference in CTI value between two inventories was related to changes in forest density and in macroclimate. Lastly, we tested whether effects on CTI change by these two drivers were modified by topography, soil moisture and tree species composition. CTI values of the understorey plant communities increased after clear‐cutting, and decr

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Author

Ditte Marie Christiansen; Lars Lønsmann Iversen; Johan Ehrlén; Kristoffer Hylander

Publisher

Wiley

Published

2021

Language

EN

Field

Environmental Science (Physical Sciences)