WorldCat Identities

Hannan, Michael

Works: 2 works in 6 publications in 1 language and 245 library holdings
Classifications: SD11, 634.9726
Publication Timeline
Most widely held works by Michael Hannan
An evaluation of the grades and value of red alder lumber in southeast Alaska by Allen M Brackley( Book )

4 editions published in 2009 in English and held by 47 WorldCat member libraries worldwide

Many stands in southeast Alaska harvested since 1950, especially where there has been a high degree of disturbance of mineral soil, have regenerated to red alder (Alnus rubra Bong.) and are now approaching maturity. The availability of red alder raises questions addressed in this study about the recovery of lumber from this resource. Information in this study was obtained from trees estimated to be 46 years old on a site outside of Ketchikan. Rates of recovery using a thin-kerf portable band mill were higher than those reported by larger production mills in Washington and Oregon. Grade yields of the Alaska material are comparable to those attained in other regions. This study determined that there were no significant differences in material characteristics that would set this Alaska log resource apart from red alder in the other regions of North America. The potential value of the products is sufficient to allow production in Alaska for use in the manufacturing of value-added products within the state or shipment of finished lumber to domestic or export markets
Surfgrass restoration in the Northeast Pacific by Tina Wyllie-Echeverria( )

2 editions published in 2007 in English and held by 0 WorldCat member libraries worldwide

This technical note summarizes the current status of our knowledge regarding restoration of surfgrasses (Phyllospadix spp.) in the northeastern Pacific, and identifies research needs to improve the success of future restoration efforts. Seagrass populations are declining in many areas around the world, due to anthropogenic stress and habitat alteration (Short and Wyllie-Echeverria 1996, Orth et al. 2006). Due to the universal recognition of seagrasses as valuable coastal habitats, efforts to mitigate these losses and restore seagrass communities have been underway for several decades (Fonseca et al. 1998). However, seagrasses in the genus Phyllospadix, also known as "surfgrasses," differ from others in that they inhabit exposed, rocky shore intertidal and subtidal environments (Figure 1) (den Hartog 1970, Phillips and Menez 1988). As a result, restoration techniques developed for other seagrass species may not be appropriate for Phyllospadix spp. (Reed et al. 1998). Restoration of Phyllospadix spp. has rarely been attempted, and a comprehensive review of seagrass restoration in the United States (Fonseca et al. 1998) was able to offer only limited guidance on restoration and transplantation of these species. Recently, a few studies have begun to investigate methods to restore Phyllospadix species
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Audience level: 0.53 (from 0.53 for An evaluat ... to 0.85 for Surfgrass ...)