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A study of the vocal behavior of the American robin

Creator:: Benson, Jane Rae
Abstract:: To gain a better foothold on the communication system of the avifauna, calls and songs of the American Robin (Turdus migratorius) were recorded and analyzed using the sound spectrograph. Ten different calls were recognized as follows: three alarm calls, an excitement call, challenge call, contact call, two flight calls and...
Resource Type:: Masters Thesis
Full Text:: A study of the vocal behavior of the American robin AN

Dinosaur lung structure and ventilation of the abdominal air sacs in birds

Creator:: Sapp, Methea
Abstract:: The purpose of this study was to identify any ostelogical features which might prevent paradoxical movement (=lateral collapse) of the abdominal air sacs in birds during inhalation. A combination of 26 fresh and frozen adult bird carcasses representing 10 avian orders were procured from local sources. Dissections of each specimen...
Resource Type:: Masters Thesis
Full Text:: ) of the abdominal air sacs in birds during inhalation. A combination of 26 fresh and frozen adult

Ecological relationships of birds in forests of western Oregon

Creator:: Anderson, Stanley H.
Abstract:: The avifaunal composition of ten western Oregon forest stands located at the eastern base of the Coast Range was examined on a seasonal basis. The stands were dominated by Oregon white oak, Douglas fir or western hemlock, Avian populations were sampled monthly from January 1968 to January 1970, using permanent...
Resource Type:: Dissertation
Full Text:: OF BPDS IN FORESTS OF WESTERN OREGON Redacted for Privacy Abstract approved: DI(-J-ohn A. Wiinis

Patterns, causes, and consequences of clustering of individual territories of the threespot damselfish, Stegastes planifrons

Creator:: Meadows, Dwayne W.
Abstract:: The threespot damselfish, Stegastes planifrons, maintains individual territories that are clustered on coral patch reefs. My objective was to understand the effects of territory clustering on behavior and fitness. Fish with territories in the center of a cluster had (relative to edge fish): higher mating success (number of eggs), higher...
Resource Type:: Dissertation
Full Text:: tract approved: Mark A. Hix6n The threespot damselfish, Stegastes planifrons, maintains individual

Behavioral patterns and their temporal organization in breeding American Avocets

Creator:: Gibson, Flash
Abstract:: The organization of behavioral activities in time is important to a bird's survival and reproduction. To be successful, either proximately or ultimately, a bird must apportion its behavior in time so that it may obtain sufficient energy for maintenance activities and for such activities as migration and reproduction. The organization...
Resource Type:: Dissertation
Full Text:: (,John A. Wiens The organization of behavioral activities in time is important to a bird's survival and

Vertebrates of the middle Oregon coast strip

Creator:: Pimentel, Richard A.
Resource Type:: Masters Thesis
Full Text:: OF THE MIDDLE OREGON COAST STRIP by RICHARD ANTHONY PIMENTEL A THESIS subnitted t,o OREGON

Kin recognition in Townsend's chipmunks (Tamias townsendii)

Creator:: Fuller, Claire A.
Abstract:: Juvenile T. townsendii were tested at 55-62 days of age to determine whether 1) they could distinguish kin from non-kin and 2) whether this ability was based on familiarity or on genetic relatedness. Seventy-three pups were observed in 68 pairwise tests. The frequencies and durations of 8 behaviors as well...
Resource Type:: Masters Thesis
Full Text:: ) AN ABSTRACT OF THE THESIS OF Claire A. Fuller for the degree of Master of Science in Zoology

An ecological study of Diatomovora amoena, an interstitial acoel flatworm, in an estuarine mudflat on the central coast of Oregon

Creator:: Thum, Alan Bradley
Abstract:: The distribution and abundance of the interstitial acoel turbellarian, Diatomovora amoena Kozloff, 1965 was studied in an estuarine intertidal sand flat in Yaquina Bay, Oregon, from May 1970 through May 1971. Monthly measurements of biological (organics, sulfides, chlorophyll, and carotenoids), pore water (salinity, pH,oxygen, and temperature), and sediment (fine sediment...
Resource Type:: Dissertation
Full Text:: , skewness, and kurtosis) factors were made along a transect at four intertidal stations with elevations of

Connecting microevolutionary processes with macroevolutionary patterns across space and time

Creator:: Uyeda, Josef C.
Abstract:: Whether microevolutionary processes can explain macroevolutionary patterns has long been a matter of contentious debate. The debate has persisted largely because of the challenging task of connecting microevolutionary theory, which examines population-level phenomena on the generation scale, to data collected across larger spatial and temporal scales. My dissertation research broadly...
Resource Type:: Dissertation
Full Text:: microevolutionary processes can explain macroevolutionary patterns has long been a matter of contentious debate

A comparative vertebrate ecology of typical and atypical oak areas

Creator:: Livezey, Robert Lee
Resource Type:: Masters Thesis
Full Text:: A comparative vertebrate ecology of typical and atypical

ScholarsArchive@OSU

A study of the vocal behavior of the American robin

Dinosaur lung structure and ventilation of the abdominal air sacs in birds

Ecological relationships of birds in forests of western Oregon

Patterns, causes, and consequences of clustering of individual territories of the threespot damselfish, Stegastes planifrons

Behavioral patterns and their temporal organization in breeding American Avocets

Vertebrates of the middle Oregon coast strip

Kin recognition in Townsend's chipmunks (Tamias townsendii)

An ecological study of Diatomovora amoena, an interstitial acoel flatworm, in an estuarine mudflat on the central coast of Oregon

Connecting microevolutionary processes with macroevolutionary patterns across space and time

A comparative vertebrate ecology of typical and atypical oak areas

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