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Album caption: Looking southwest along foot of Pumpelly Glacier to Blackfoot Mountain. Glacier National Park. 1914. Notes on album caption: None Index card: Stebinger, E. C. 327 - Pumpelly Glacier and Blackfoot Mountain, Glacier National Park, Montana. 1914.
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Synopsis: This paper summarizes significant findings from literature related to the effect of noise on wildlife, emphasizing the effects of road traffic noise on birds. Many studies from the United States and the Netherlands indicate that road noise has a negative effect on bird populations, particularly during breeding season in a variety of species. In this paper, ‘effect distances’—distances at which bird density decreases—are reported at a range of two to three thousand meters from the road. Effect distances tend to increase with traffic density, being the greatest near large, multilane highways. In a study of woodland species, 26 of 43 (60%) were found to show a decrease in population densities with effect...
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Album caption: (Kodak) West end of ridge of 220 [C. D. Walcott photograph 220; website identifier wcd00200], giving a nearer view of the cleavage in the granite. Inyo County, California. 1894. Notes on album caption: None. Index card: Walcott, C. D. 221 - Cleavage of rocks in hill shown in 220 [C. D. Walcott photograph 220; website identifier wcd00200.]
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Album caption: Triple Divide Peak (in middle distance) with Norris Mountain on left and Split Mountain on right of it. Glacier National Park, Montana. 1911. Index card: Stanton, T. W. 673 - Triple Divide Peak. Glacier National Park, Montana. 1911. Note: Published as Plate 3-B, in U.S. Geological Survey Bulletin 600 (1914).
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Synopsis: A simulation model, modified from percolation theory, was empirically tested to determine if population distribution patterns correlated with different landscape patterns, for different species across a landscape. Using two grasshopper species in a short-grass prairie of north-central Colorado, the experiment found that the threshold for population aggregation (random to clumped distribution) was differentially affected by dispersal ranges and habitat specialization for habitat generalists and habitat specialists, respectively. Habitat generalists aggregated differentially depending on dispersal abilities. Generalist species with good dispersal abilities aggregated when <35% of the landscape consisted...
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Album caption: Panorama of Upper Nyack Valley, looking east to west from north spur of Mt. Stimpson, Flinch Peak on extreme right to Blackfoot Mountain on left. Glacier National Park, Montana. July 1914. Notes on album caption: None. Index card: Stebinger, Eugene C. 325 - Upper Nyack valley from Mt. Stimpson. Glacier National Park, Montana. 1914 Note: Panorma photo numbers 325, 325a, 325b, 325c, 325d, 325e; website identifiers: sec00325, sec0325a, sec0325b, sec0325c, sec0325d, sec0325e.


    map background search result map search result map Triple Divide Peak. Glacier National Park, Montana 1911. Panorama of Upper Nyack Valley, Glacier National Park, Montana. 1914. Pumpelly Glacier and Blackfoot Mountain, Glacier National Park, Montana. 1914. Critical thresholds in species responses to landscape structure. Synthesis of noise effects on wildlife populations. Triple Divide Peak. Glacier National Park, Montana 1911. Panorama of Upper Nyack Valley, Glacier National Park, Montana. 1914. Pumpelly Glacier and Blackfoot Mountain, Glacier National Park, Montana. 1914. Critical thresholds in species responses to landscape structure. Synthesis of noise effects on wildlife populations.