Publications by authors named "P S Hoch"
Article Synopsis
- This work presents a new framework to assess the economic value of illegal clearings in the Amazon rainforest using Habitat Equivalency Analysis while focusing on restoring ecosystem services.
- The framework calculates the economic value by considering both past losses and potential future gains, resulting in a valuation of approximately Int.$ 341,611 for 10 hectares cleared, which is significantly higher than traditional timber-focused valuations.
- The approach emphasizes low costs and efficiency, making it useful for preliminary environmental assessments and enhancing understanding of the financial impacts of deforestation in the Amazon.
Article Synopsis
- Changes in flowering times due to climate change have led to longer flowering durations for plant species in central North America, averaging an increase of 11.5 days over the past century.
- Nearly all species studied (94%) showed greater overlap in their flowering periods, particularly in autumn, where late-season species have extended their blooming periods.
- This research highlights the significant impact of climate change on plant reproductive patterns, suggesting that the effects are more pronounced in certain seasons, like autumn.
Background: The evening primrose family (Onagraceae) includes 664 species (803 taxa) with a center of diversity in the Americas, especially western North America. Ongoing research in Onagraceae includes exploring striking variation in floral morphology, scent composition, and breeding system, as well as the role of these traits in driving diversity among plants and their interacting pollinators and herbivores. However, these efforts are limited by the lack of a comprehensive, well-resolved phylogeny.
View Article and Find Full Text PDFBackground: While polyploids are common in plants, the evolutionary history and natural dynamics of most polyploid groups are still unclear. Owing to plentiful earlier systematic studies, Ludwigia sect. Isnardia (comprising 22 wetland taxa) is an ideal allopolyploid complex to investigate polyploid evolution and natural dynamics within and among taxa.
View Article and Find Full Text PDFHere we investigated the refolding of 6S-1 RNA and its release from σ-RNA polymerase (σ-RNAP) in vitro using truncated and mutated 6S-1 RNA variants. Truncated 6S-1 RNAs, only consisting of the central bubble (CB) flanked by two short helical arms, can still traverse the mechanistic 6S RNA cycle in vitro despite ~10-fold reduced σ-RNAP affinity. This indicates that the RNA's extended helical arms including the '-35'-like region are not required for basic 6S-1 RNA functionality.
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