The Foraging Ecology of Cavity-Nesting Birds in Young Forests of the Northern Coast Range of Oregon

The Condor ◽  
1999 ◽  
Vol 101 (1) ◽  
pp. 58-66 ◽  
Author(s):  
Jennifer M. Weikel ◽  
John P. Hayes
Keyword(s):  
Foraging Ecology ◽  
Northern Coast ◽  
Coast Range ◽  
Cavity Nesting ◽  
Young Forests

Crustal refraction profile, Oregon coast range

1966 ◽  
Vol 56 (6) ◽  
pp. 1357-1362
Author(s):  
Joseph W. Berg ◽  
Lynn Trembly ◽  
David A. Emilia ◽  
Jeremy R. Hutt ◽  
John M. King ◽  
...  
Keyword(s):  
Velocity Gradient ◽  
Seismic Waves ◽  
Northern Coast ◽  
Coast Range ◽  
Time Data ◽  
Oregon Coast Range ◽  
Oregon Coast ◽  
Travel Time Data ◽  
Quarry Blast ◽  
Distance Data

Abstract Seven temporary and three permanent seismograph stations recorded seismic waves to a distance of about 270 km from a 110,000 pound quarry blast detonated near Depoe Bay, Oregon. The recording stations were in a north-south line along the northern coast range of Western Oregon and Washington. The travel-time data indicate an apparent shallow crustal thickness (about 16 km) for this region. The time versus distance data were not continuous beyond 130 km from the source which may have resulted from any combination of the following causes: (1) insufficient source energy; (2) lateral geological variations; and/or (3) a subcrustal negative velocity gradient.

Abundance and Bloodfeeding Patterns of Mosquitoes (Diptera: Culicidae) in an Oak Woodland on the Eastern Slope of the Northern Coast Range of California

2017 ◽  
Vol 54 (5) ◽  
pp. 1344-1353 ◽  
Author(s):  
Tara C. Thiemann ◽  
David L. Woodward ◽  
Ying Fang ◽  
Bonnie M. Ryan ◽  
Brittany M. Nelms ◽  
...  
Keyword(s):  
Northern Coast ◽  
Coast Range ◽  
Eastern Slope ◽  
Oak Woodland

Late-Pleistocene and Holocene Remains of Hysterocarpus traski (Tule Perch) from Clear Lake, California, and Inferred Holocene Temperature Fluctuations

1977 ◽  
Vol 7 (1) ◽  
pp. 133-143 ◽  
Author(s):  
Richard W. Casteel ◽  
David P. Adam ◽  
John D. Sims
Keyword(s):  
Growth Rates ◽  
General Pattern ◽  
Western United States ◽  
Fish Length ◽  
Northern Coast ◽  
Tree Line ◽  
Coast Range ◽  
Clear Lake ◽  
Measuring Scale ◽  
Early And Middle Holocene

The remains of scales of Hysterocarpus traski Gibbons (Tule perch) were found throughout a 27.44-m core from Clear Lake. Most scales occurred between the mud surface and deposits approximately 11,000 years old. Changes in growth rates of the animals were examined by measuring scale annuli and applying an empirically established regression of fish length on scale radius. The data indicate a pattern of accelerating growth rates, reaching a peak between ⋍4000 and 2800 BP. After ⋍2800 BP, growth rates decline markedly. Because the growth rates of these animals are essentially dependent on temperature, the changes observed in the patterns of growth probably reflect changes in climate in the northern Coast Range. The general pattern of inferred temperature increase during the early and middle Holocene, ending between ⋍4000 and 2800 BP, is consistent with evidence from tree-line studies and palynology indicating higher temperatures in parts of the western United States during this period.

Jointly determined focal parameters along a fault in California's northern coast range

1985 ◽  
Vol 118 (3-4) ◽  
pp. 293-299 ◽  
Author(s):  
Peter Dehlinger ◽  
Bruce A. Bolt
Keyword(s):  
Northern Coast ◽  
Coast Range ◽  
Focal Parameters

scholarly journals Artificial Inoculation of Decay Fungi into Douglas-Fir with Rifle or Shotgun to Produce Wildlife Trees in Western Oregon

2004 ◽  
Vol 19 (3) ◽  
pp. 211-215 ◽  
Author(s):  
Gregory M. Filip ◽  
Catherine G. Parks ◽  
Fred A. Baker ◽  
Stephen E. Daniels
Keyword(s):  
Douglas Fir ◽  
Wildlife Habitat ◽  
Apparent Difference ◽  
Coast Range ◽  
Fomitopsis Pinicola ◽  
Decay Fungi ◽  
Oregon Coast Range ◽  
Wildlife Use ◽  
Cavity Nesting ◽  
Dead Trees

Abstract A total of 188 Douglas-fir trees were treated to determine whether fungal inoculation with rifle or shotgun promoted stem decay and subsequent use by cavity-nesting birds in the Coast Range in Oregon. Inoculated trees were either live or killed by topping. Topped trees were climbed and severed just below the lowest whorl of live branches. Fungal inoculum was delivered by either a 0.45–70 caliber rifle or a 12-gauge shotgun to tree trunks at a height of about 8 m aboveground. Inoculum of either Phellinus pini or Fomitopsis cajanderi was grown on small wooden dowels or sawdust and fitted into the rifle slug (dowels) or behind the shotgun slug (sawdust). Sterile dowels or sawdust were used as a control. After 5 years, all topped trees had died, and at least 50% had sap rot as indicated by the presence of conks of Trichaptum abietinum. Conks of Crytoporus volvatus, Fomitopsis pinicola, or P. pini were sometimes observed on topped (dead) trees. Almost half of the topped trees had evidence of wildlife activity including foraging holes, nest cavities, or bark removal. There was no difference in sap rot incidence or subsequent wildlife activity among three treatments (rifle, shotgun, or not shot) or among three inoculum types (P. pini, F. cajanderi, or sterile). None of the untopped (live) but artificially inoculated trees had conks or evidence of wildlife use. Of seven live and shot trees that were destructively sampled, there was an average of 68.7 cm2 of decay area on each wood disc that was associated with each bullet. There was no apparent difference in internal decay area between sterile and viable inoculum, but sample size was small. It appears that tree killing by topping below the live crown is a faster method of creating wildlife habitat than ballistic inoculation of live Douglas-fir trees in the Oregon Coast Range. Topped and dead trees had more avian foraging holes, deep cavities, and bark removed than did live inoculated trees. Based on the seven live shot trees that we sampled for internal decay, it appears that shooting trees with a shotgun or rifle is effective in creating internal decay within 5 years, but it may take several more years to form a decay column large enough to be used by cavity-nesting birds. West. J. Appl. For. 19(3):211–215.

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