Windstorm damage and forest recovery: accelerated succession, stand structure, and spatial pattern over 25 years in two Minnesota forests

We evaluated 25 years of change in windimpacted oak and pine-dominated sites in the Cedar Creek Ecosystem Science Reserve, Minnesota, USA. We address the question: how did the storm alter stand architecture and spatial pattern and how did this affect recovery and recruitment? We mapped and marked al...

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Vydáno v:Plant ecology Ročník 213; číslo 11; s. 1833 - 1842
Hlavní autoři: Allen, Matthew S., Thapa, Vaskar, Arévalo, José Ramón, Palmer, Michael W.
Médium: Journal Article
Jazyk:angličtina
Vydáno: Dordrecht Springer 01.11.2012
Springer Netherlands
Springer Nature B.V
Témata:
Analysis
Applied Ecology
Architecture
Biodiversity
Biomedical and Life Sciences
Boreal forests
Community & Population Ecology
Coniferous forests
Ecology
Forest ecology
Forest regeneration
Forest stands
Forest succession
Forests
Life Sciences
Mortality
Natural disaster damage
Ordination
Plant Ecology
Plant reproduction
Plant species
Spatial analysis
Storm damage
Storms
Terrestial Ecology
Terrestrial ecosystems
Trees
Wind
United States > US
Minnesota
Forest architecture
Windstorm
Cedar creek ecosystem science reserve
Spatial point pattern
Forest succession
ISSN:1385-0237, 1573-5052
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Shrnutí:We evaluated 25 years of change in windimpacted oak and pine-dominated sites in the Cedar Creek Ecosystem Science Reserve, Minnesota, USA. We address the question: how did the storm alter stand architecture and spatial pattern and how did this affect recovery and recruitment? We mapped and marked all stems greater than 1 cm in diameter in a 0.25 ha oakdominated plot and a 0.30 ha pine-dominated plot. After the initial sampling in 1983, plots were resurveyed four times in the 25 years following the windstorm. We used ordination and diameter distributions to describe compositional and structural characteristics of the sites. The stands are compositionally converging after the windstorm with both moving towards a late-successional forest type dominated by shade-tolerant tree species. The architecture in both sites is similar through time; sites have transitioned from bimodal diameter distributions to reverse-J distributions. We used Ripley's K point pattern analysis to assess spatial patterns of tree mortality and recruitment within each site. In the pine site, surviving trees were significantly clumped, but mortality and recruitment patterns did not significantly differ from random. In the oak site, the storm did not substantially alter the spatial pattern of surviving trees, but subsequent recruitment was significantly associated with trees killed by the storm at scales within 6-8 m and significantly dissociated with surviving trees at scales greater than 1 m. The dynamics of accelerated succession observed here are mediated by the damage and mortality initially sustained and its corresponding effects on spatial patterns of surviving and recruiting trees.
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ISSN:1385-0237
1573-5052
DOI:10.1007/s11258-012-0139-9