Herbicides Exert Weak and Variable Effects on Microclimate in Early-Seral Forests

摘要: Ecosystem modification driven by anthropogenic land-use and land-cover change is one of the leading drivers global biodiversity declines. Simultaneously, ongoing climate modifying ecosystems will have far-reaching impacts on structure function ecological communities. Rising surface temperatures are predicted to negative effects plants animals, but such predictions typically broad poorly matched spatial scale at which most organisms experience environment. Microclimate thermal regimes often moderated land-cover, intensive forest management practices potential either ameliorate or exacerbate biota. In this study, we examined degree air temperature varied across an experimental gradient herbicide application intensity within early-seral forests in Coast Range mountains western Oregon. We evaluated stand-level regenerating stands subjected light, moderate, treatments, as well a no-spray control. whether daily measurements (minimum, mean, maximum) their associated coefficients variation were influenced treatments. found that treatments had some influence mean maximum temperatures, not minimum measures variability. However, small (< 0.5 °C), direction these inconsistent, pairwise contrasts failed detect significant differences after accounting for multiple comparisons. Our results suggest post-harvest vegetation has limited fine-scale unlikely amplify buffer projected forests.