Across the wildland–urban interface of the Front Range region of Colorado, agencies associated with the ‘Collaborative Forest Landscape Restoration Program’ (CFLRP) have implemented thinning treatments across thousands of hectares of ponderosa pine forest. These changes to forest structure may impact ecosystem function via impacts on sensitive biotic communities. We measured variation in forest structure and sampled bee community assemblages to compare bee biodiversity and patterns of floral visitation by bees (bee-flower networks) between mechanically thinned stands and non-thinned stands. Our results suggest that thinning increases floral resources which promotes native bee abundance, diversity, and bee-flower network resiliency.
Photo 1. An example study site in a thinned ponderosa pine forest (Colorado, USA) illustrating the abundance and diversity of floral resources.
Photo credit: Cora B. Davies.
This photograph illustrates the article “Forest restoration treatments indirectly diversify pollination networks via floral- and temperature-mediated effects” by C.B. Davies, T.S. Davis, and T. Griswold published in Ecological Applications. https://doi.org/10.1002/eap.2927
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