No abstract

Hemlock woolly adelgid (Adelges tsugae Annand) (HWA) is an invasive forest insect sweeping across the native range of eastern (Tsuga canadensis [L.] Carr.) and Carolina (Tsuga caroliniana Engelm.) hemlocks, threatening to severely reduce eastern hemlock extent and to push Carolina hemlock to extirpation. HWA poses a significant threat to these eastern US natives, now infesting hemlocks across 19 states and more than 400 counties. For the long-term preservation of the species, ex situ genetic resource conservation efforts such as seed collection, storage, and adelgid-resistant hemlock breeding may all be necessary. To ensure the efficient and effective application of these efforts, it will be necessary to prioritize locations within the native ranges, because it is logistically impossible to apply these efforts to all populations. To build upon 12 years of seed banking for eastern and Carolina hemlock, we applied a novel approach for incorporating multiple dissimilar data sets into a geographic prioritization of areas for the most effective and efficient conservation of genetic diversity. The approach involves integration of geographic information systems with the multi-attribute frontier mapping technique to Electronic supplementary material The online version of this article (identify locations across the ranges of these two imperiled species most in need of conservation actions. Specifically, our assessment incorporated four genetic diversity parameters, a climate component, a measure of population disjunctiveness, a measure of local hemlock abundance, and seed collection density to prioritize areas of eastern and Carolina hemlock occurrence for ex situ gene conservation. For each species, the result was a mapped index of locations prioritized by the combined significance of these factors. For eastern hemlock, this assessment assigned the highest priority to disjunct populations and to some areas within the main-body range. With Carolina hemlock, disjunct northern populations and central main-body locations received the highest prioritization. Our prioritization approach could be applied similarly to other species facing pressure from invasive pests or other environmental threats.

An understanding of foresters' perceptions of climate change is important for developing effective educational programs on adaptive forest management. We surveyed 1,398 foresters in the southern United States regarding their perceptions of climate change, observations and concerns about climatic and forest conditions, and knowledge of and interest in resilient forest management techniques and climate science. A majority (61%) agreed that climate change is occurring, and 14% agreed that it is caused by humans. Most respondents were interested in learning more about forest resilience and related concepts. Development of programming focused on managing for forest resilience in a changing climate is a prudent educational approach that builds on familiar risk-management strategies.

Media coverage of climate change can often leave the average person confused and unsure what to believe. However, as a trusted source of information and research, Extension has the opportunity to educate people about climate change and appropriate adaptation strategies in a scientific, unbiased way. This 5-page fact sheet outlines four challenges of climate change education. Written by Martha Monroe, Claire Layman Bode, and Mark A. Megalos, and published by the UF School of Forest Resources and Conservation, May 2015.

The educational needs assessment reported here measured North Carolina Cooperative Extension (NCCE) professionals' perceptions of global warming and identified barriers to climate change programming. Survey results from 400 NCCE professionals show 70% are cautious, concerned, or alarmed about global warming. Liberal and female Extension professionals were more likely to be alarmed and concerned than their conservative and male counterparts. Respondents indicated willingness to engage in programming, but need in-service training to address conflicts, gather information, and emphasize relevancy. NCCE professionals perceive lack of audience interest, conflicts within available information, and lack of applied information as the greatest barriers to climate change programming.