Red alder (Alnus rubra
Bong.) is among the most susceptible woods used for pallet construction in the Pacific Northwest (Resch 1980, Niemiec et al.
The species is primarily folivorous (Voth and others 1983; Manning and others 2003) and at least semi-arboreal (Foreman and Swingle 2006), with most of the diet during spring and summer consisting of Red Alder (Alnus rubra) leaves (Voth and others 1983).
Captured individuals consumed leaves of Red Alder (Alnus rubra), Beaked Hazel (Corylus cornuta), Salmonberry (Rubus spectabilis), Thimbleberry (Rubus parviflorus), and willow (Salix spp.); they investigated but did not consume Wild Ginger (Asarum caudatum), Stink Currant (Ribes bracteosum), or Sword Fern (Polystichum munitum).
The plasma membrane does elaborate around encapsulated hyphae (Lalonde, 1980); and the cytoplasm of Alnus rubra root hairs has been described as containing numerous ribosomes, mitochondria, Golgi bodies, plastids, and endoplasmic reticulum (Berry et al., 1986).
Callose-containing deposits in relation to root-hair infections of Alnus rubra by Frankia.
Riparian vegetation includes Red Alder (Alnus rubra
) and Water Birch (Betula occidentalis), which shade most of the creek.
Forty veneer panels overlaid with red alder (Alnus rubra
Bong), mahogany (Swietenia sp.), maple (Acer sp.), white oak (Quercus sp.), or pine (Pinus sp.) veneers (eight panels per species) were donated by Pacific Rim Cabinets, Delta, British Columbia, Canada.
The Hairy Woodpecker then foraged in Red Alder (Alnus rubra
) and Douglas-fir (Pseudotsuga menziesii) on the north side of the road for several minutes, during which time it was observed by 2 of the authors through binoculars at an angle of approximately 30[degrees] from horizontal and from a distance of approximately 15-20 m against a backdrop of dense forest vegetation.
Red alder (Alnus rubra
) is the major commercial hardwood species in the U.S.
In the Pacific Northwest, red alder (Alnus rubra
) is a commercially important species especially with an annual harvest of more than 300 million board feet.
The supply has always been there, in great plenitude, because red alder (Alnus rubra
to be technical about it) is a tree that moves speedily to establish itself in river bottoms and lowland areas once the dominant conifers are gone.
A 10- by 10- by 2-mm-long thick strip of red alder (Alnus rubra
Bong.) for the white-rot fungus or western hemlock (Tsuga heterophylla (Raf.) Sarg.) for the brown-rot fungus was placed on the surface, then the jars were loosely capped and autoclaved for 45 minutes at 121[degrees]C.
Acer saccharum Hard (Sugar) maple Heartwood light reddish brown, sometimes darker Alnus rubra
Red alder Almost white to pinkish brown.
Red alder (Alnus rubra) is an alternative species that could potentially fill some of the market opportunities created by the decreased softwood harvest in the Pacific Northwest.
The relevant previous studies of juvenile wood effects on hardwoods are reviewed with a specific focus on the characteristics of red alder (Alnus rubra), a diffuse-porous species.