Habitat use by flammulated owls in northeastern Oregon

The reproductive ecology, diet and habitat used by flammulated owls (Otus flammeolus) during the breeding seasons of 1983 and 1984 were studied in northeastern Oregon. Remote photography was used at 5 nest cavities to record diet; radiotelemetry...

1985-12-10 (iso8601)

Fish and invertebrate distribution at multiple scales in Thomas Creek, Oregon : a...

Longitudinal patterns of fish and benthic invertebrate distribution and habitat use were similar in Thomas Creek, Oregon but clarity of these patterns differed. I studied fish and aquatic invertebrates simultaneously, at multiple scales, and used...

2003-03-14 (iso8601)

Effects of livestock grazing and small mammal populations on endangered Bradshaw's...

I evaluated the response of the federally listed endangered plant species Bradshaw's desert parsley (Lomatium bradshawii) to livestock grazing and small mammal depredation at Oak Creek, Linn County, Oregon, 1997-1998. I established six study...

2000-12-19 (iso8601)

Foraging ecology, colony attendance, and chick provisioning of Caspian terns (Sterna...

2003-10-09 (iso8601)

Comparison of methods to estimate population density of Pacific giant salamanders in...

I compared hand sampling, two-pass multiple removal sampling, mark-recapture and catchability-based population estimates for the Pacific giant salamander (Dicamptodon tenebrosus) at 22 sites in 11 streams of Cascade Mountains of Oregon....

2003-08-11 (iso8601)

From continua to patches : longitudinal patterns in the Middle Fork of the John Day...

The Middle Fork John Day River is composed of low gradient, alluvial valley segments separated by constrained, canyon-like reaches, and has a history of multiple land-uses. These factors can alter the physical and biological structure of streams,...

2000-04-28 (iso8601)

A simulation model of wood dynamics in Pacific Northwest streams

Conceptually, the dynamics of wood in streams can be viewed in terms of input and in-channel processes. Input processes are associated with both the riparian (tree fall, bank cutting, windthrow) and upslope forests (mass failures). In-channel...

2001-04-30 (iso8601)

Heterogeneous thermal habitat for northeast Oregon stream fishes

Discrete coldwater patches within warm streams provide potential thermal refuge for coldwater fishes during periods of heat stress. This analysis focused on heterogeneity in stream water temperatures as influenced by local influx of cooler...

2001-11-09 (iso8601)

Riparian vegetation composition and structure associated with channel morphology of...

2003-08-05 (iso8601)

Blue grouse winter ecology in northeastern Oregon

1996-06-21 (iso8601)

Sex hormone-immune system interactions in salmonid fish

1996-07-31 (iso8601)

Mercury accumulation in fish from Madre de Dios, a goldmining area in the Amazon Basin,...

1996-11-08 (iso8601)

Streamside forests, channel constraint, large woody debris characteristics, and pool...

1995-03-31 (iso8601)

Distribution of kokanee (Oncorhynchus nerka) fingerlings in summer as related to some...

Natural populations of kokanee fingerlings were studied in Odell Lake, Oregon from June 1962 to September 1963. Vertical and horizontal distributions were determined in relation to temperature, zooplankton, and light during the summer of 1963....

1964-05-15 (iso8601)

Winter foods of the ringneck pheasant on the Wilson game management area

1958-05-13 (iso8601)

Survival of the pronghorn antelope in south central Oregon during 1953 and 1954

1955-05-11 (iso8601)

Climographic comparisons of the chukar partridge habitats in India and western United...

1959-01-09 (iso8601)

The influence of dissolved oxygen concentration on the swimming performance of juvenile...

1960-05-04 (iso8601)

Salt use by mule deer in the Deschutes National Forest of central Oregon

1954-07-26 (iso8601)

Reactions of various fishes to gonadotropic stimuli

1958-05-02 (iso8601)

Some effects of low concentrations of dissolved oxygen upon juvenile silver salmon

1954-05-10 (iso8601)

Effects of diet containing salmon viscera upon growth and the incidence of kidney...

1957-08-02 (iso8601)

Foods and growth of juvenile coho salmon Oncorhynchus kisutch (Walbaum), and Chinook...

1960-09-19 (iso8601)

Metabolism of algal communities in experimental streams

1961-05-15 (iso8601)

Influence of oxygen concentration and of its diurnal fluctuations on the growth of...

1963-05-14 (iso8601)