Learn More
Acetylcholine receptors (AChRs) are highly concentrated in the postsynaptic membrane at the neuromuscular junction. To investigate mechanisms that lead to the formation or maintenance of this synaptic specialization, we generated transgenic mice in which regulatory elements from the AChR alpha or epsilon-subunit genes are linked to a gene for a reporter(More)
Spawning Pacific salmon (Onchorhynchus) transport marine-derived nutrients into streams and rivers. Subsequently, these marine-derived nutrients are incorporated into freshwater and terrestrial food webs through decomposition and predation. In this study, we investigated the influence of spawning Pacific salmon on terrestrial vegetation using stable isotope(More)
We quantified the amount, spatial distribution, and importance of salmon (Oncorhynchus spp.)-derived nitrogen (N) by brown bears (Ursus arctos) on the Kenai Peninsula, Alaska. We tested and confirmed the hypothesis that the stable isotope signature (δ15N) of N in foliage of white spruce (Picea glauca) was inversely proportional to the distance from(More)
During vertebrate embryogenesis, the muscle-specific helix-loop-helix protein myogenin is expressed in muscle cell precursors in the developing somite myotome and limb bud before muscle fiber formation and is further upregulated during myogenesis. We show that cis-acting DNA sequences within the 5' flanking region of the mouse myogenin gene are sufficient(More)
The 43K protein is a cytoplasmic peripheral membrane protein concentrated subsynaptically in skeletal muscle. Recombinant 43K has been shown to cause clustering of acetylcholine receptors (AChRs) in cultured cells. However, the role of 43K in vivo is disputed, because in some cases it appears only after AChRs have clustered. We therefore examined the(More)
The structure and function of Alaska's forests have changed significantly in response to a changing climate, including alterations in species composition and climate feedbacks (e.g., carbon, radiation budgets) that have important regional societal consequences and human feedbacks to forest ecosystems. In this paper we present the first comprehensive(More)
The landscape pattern of vegetation communities is of fundamental importance to ecologists and biogeographers because it establishes the biotic template upon which large-scale ecological processes occur. Landscape vegetation patterns within boreal forests are thought to be driven strongly by abiotic disturbance processes (i.e. fire in uplands, floods in(More)
Alnus rubra, as a potential mitigating factor for wildlife habitat following clearcut logging in southeastern Alaska. Canadian Field-Naturalist 112(4): 647-652. Within-stand variation in understory species composition and biomass was studied in 16 even-aged stands of mixed Red Alder-Sitka Spruce-Western Hemlock (Alnus rubra-Picea sitchensis-Tsuga(More)
Takashi. 2002. Managing young upland forests in southeast Alaska for wood products, wildlife, aquatic resources, and fishes: problem analysis and study plan. Gen. Red alder (Alnus rubra Bong.) appears to influence the productivity of young-growth conifer forests and affect the major resources (timber, wildlife, and fisheries) of forested ecosystems in(More)
or part of an individual's income is derived from any public assistance program, or protected genetic information in employment or in any program or activity conducted or funded by the Department. (Not all prohibited bases will apply to all programs and/or employment activities.) To File an Employment Complaint If you wish to file an employment complaint,(More)