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The early development of Ambystoma macrodatylum baird, with emphasis on the larval stages

Creator:: Hollenbeck, Robert Rudolph
Abstract:: The embryonic and larval stages of the long-toed salamander, Ambystoma macrodactylum are described from fertilization through the development of five toes on the posterior limbs. New stage numbers are employed in the description of the hind limb. The eggs used in the study were obtained by the injection of pituitary...
Resource Type:: Masters Thesis
Full Text:: , With Emphasis on the Larval Stages AN ABSTRACT OF THE THESIS OF ROBERT RUDOLPH HOLLENBECK for the M

Variations in salinity tolerance in the Pacific Treefrog, Hyla regilla, in Oregon

Creator:: Roberts, James Oliver
Abstract:: Eggs, larvae and adults of the four subspecies of Hy la regilla occurring in Oregon as given by Jameson, Mackey and Richmond (1966) were collected and subjected to salt stress in a series of graded seawaters. It was found that in all cases adults were more tolerant than larvae and...
Resource Type:: Dissertation
Full Text:: PACIFIC TREEFROG, HYLA REGILLA, IN OREGON Abstract approved: Redacted for Privacy Dr. Robert M. Storm

Morphological variations in populations of Lacerta from islands in the Adriatic Sea

Creator:: Clover, Robert C.
Abstract:: Phenetic relationships in insular populations of Lacerta sicula and L. melisellensis correspond to geologic ages of the islands in two regions of the Adriatic Sea. Populations of L. melisellensis on older islands are more similar to populations of L. sicula than are L. melisellensis from younger islands, and examination of...
Resource Type:: Dissertation
Full Text:: approved: Redacted for privacy Dr. Robert M. Storm Phenetic relationships in insular populations of

Population and home range studies of Peromyscus maniculatus gambelii in the Strawberry Mountains, Grant County, Oregon

Creator:: Moore, Robert Emmett
Resource Type:: Masters Thesis
Full Text:: PlaoMYscus nANI9U~U~ GAMBELII IN THE STRAWBEBRYOUNTAINS, GBANT COUNTY , OREGON by ROBERT EM ETT MOORE

A dietary and morphometric analysis of sceloporine (Iguanidae) lizard populations

Creator:: White, Robert Lewis, II
Abstract:: Analyses of sympatric and allopatric populations of Sceloporus occidentalis and S. graciosus from central Oregon indicate a high degree of similarity in diet. Relative abundance, the equivalent number of equally common taxa (E), and the probability of similarity (SIMI) were used in the analyses. Shifts in diet between populations of...
Resource Type:: Dissertation
Full Text:: OF SCELOPORINE (IGUANIDAE) LIZARD POPULATIONS Abstract approved: Redacted for Privacy Dr. Robert M

Small mammal micro- and macrohabitat selection in streamside ecosystems

Creator:: Doyle, Arlene T.
Abstract:: During summer and fall of 1981 to 1983, mark-recapture was conducted in riparian and upland habitats within old-growth and mature forests in the Cascade Range of Oregon. Number of individuals and species richness were greater in riparian than upland habitat. For most species, the mean adult weights and the percentages...
Resource Type:: Dissertation
Full Text:: Streamside Ecosystems. Abstract approved: _Redacted for Privacy Dr. Robert M. Storm During summer and fall

A study of behavior in the deer mouse Peromyscus maniculatus rubidus Osgood during its 24-hour cycle of activity in a simulated natural habitat

Creator:: Laban, Cornelis
Abstract:: With a growing emphasis on details of behavior comes an increasing need for knowledge of natural behavior patterns. Studies on the life history of Peromyscus maniculatus have long been available in the literature. More recently, investigators have turned to analyzing the behavior of some of the subspecies of P.m. in...
Resource Type:: Dissertation
Full Text:: !! ACKNOWLEDGMENT I wish to express sincere thanks to my major professor Dr. Robert M. Storm, for the help

The respiratory ecology of the rough-skinned newt Taricha granulosa (Skilton)

Creator:: Smith, John Martin
Abstract:: An investigation was undertaken to determine if respiratory changes might occur in conjunction with migrations of the rough-skinned newt, Taricha granulosa (Skilton) in and out of ponds in the Willamette Valley. A field study was carried on from December 1964 through October 1965 to investigate certain physical and chemical parameters...
Resource Type:: Dissertation

The function of orange breeding coloration in the social behavior of the long-nosed leopard lizard (Gambelia wislizenii)

Creator:: Moore, Edith
Abstract:: The role of orange coloration in the breeding behavior of Gambelia wislizenii was examined in the Alvord Basin of southeast Oregon. Behavioral observations of free ranging lizards supplemented field experiments where I manipulated the sex and color of lizards encountered by resident female G. wislizenii before and after they acquired...
Resource Type:: Masters Thesis
Full Text:: ) Abstract approved: _Redacted for Privacy Dr. Robert M. Storm The role of orange coloration in the breeding

The behavioral ecology of larval and neotonic northwestern salamanders (Ambystoma gracile)

Creator:: Taylor, James Thomas
Abstract:: In the summers of 1973, 1974 and 1975, I investigated population age structure and density, and behaviors relating to habitat selection, predator avoidance and intraspecific interaction in a population of northwestern salamanders in a lake in the Oregon Cascade Mountains. The study was carried out by skin- and scuba-diving at...
Resource Type:: Dissertation
Full Text:: Privacy Robert M. Storm In the summers of 1973, 1974 and 1975, I investigated popula- tion age structure

ScholarsArchive@OSU

The early development of Ambystoma macrodatylum baird, with emphasis on the larval stages

Variations in salinity tolerance in the Pacific Treefrog, Hyla regilla, in Oregon

Morphological variations in populations of Lacerta from islands in the Adriatic Sea

Population and home range studies of Peromyscus maniculatus gambelii in the Strawberry Mountains, Grant County, Oregon

A dietary and morphometric analysis of sceloporine (Iguanidae) lizard populations

Small mammal micro- and macrohabitat selection in streamside ecosystems

A study of behavior in the deer mouse Peromyscus maniculatus rubidus Osgood during its 24-hour cycle of activity in a simulated natural habitat

The respiratory ecology of the rough-skinned newt Taricha granulosa (Skilton)

The function of orange breeding coloration in the social behavior of the long-nosed leopard lizard (Gambelia wislizenii)

The behavioral ecology of larval and neotonic northwestern salamanders (Ambystoma gracile)

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