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Articles 31 - 60 of 400
Full-Text Articles in Anatomy
Oochoristica Scelopori (Cestoda: Linstowiidae) In A Grassland Population Of The Bunch Grass Lizard, Sceloporus Scalaris (Phrynosomatidae), From Arizona, Stephen R. Goldberg, Charles R. Bursey, Chris T. Mcallister, Hobart M. Smith, Quynh A. Truong
Oochoristica Scelopori (Cestoda: Linstowiidae) In A Grassland Population Of The Bunch Grass Lizard, Sceloporus Scalaris (Phrynosomatidae), From Arizona, Stephen R. Goldberg, Charles R. Bursey, Chris T. Mcallister, Hobart M. Smith, Quynh A. Truong
Great Basin Naturalist
No abstract provided.
Effects Of Douglas-Fir Foliage Age Class On Western Spruce Budworm Oviposition Choice And Larval Performance, Kimberly A. Dodds, Karen M. Clancy, Kathryn J. Leyva, David Greenberg, Peter W. Price
Effects Of Douglas-Fir Foliage Age Class On Western Spruce Budworm Oviposition Choice And Larval Performance, Kimberly A. Dodds, Karen M. Clancy, Kathryn J. Leyva, David Greenberg, Peter W. Price
Great Basin Naturalist
The western spruce budworm (Choristoneura occidentalis Freeman) prefers to feed on flushing buds and current-year needles of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco). Budworm larvae will not typically consume older age classes of needles unless all current-year foliage is depleted. We tested the following null hypotheses: (1) budworm larvae can feed on foliage with a wide range of qualities (i.e., current 1-, 2-, or 3-year-old needles) without measurable effects on fitness; and (2) budworm adults do not show any oviposition preference linked to the age of the foliage they fed on as larvae. We used both laboratory and field …
Selecting Wilderness Areas To Conserve Utah's Biological Diversity, Diane W. Davidson, William D. Newmark, Jack W. Sites Jr., Dennis K. Shiozawa, Eric A. Rickart, Kimball T. Harper, Robert B. Keiter
Selecting Wilderness Areas To Conserve Utah's Biological Diversity, Diane W. Davidson, William D. Newmark, Jack W. Sites Jr., Dennis K. Shiozawa, Eric A. Rickart, Kimball T. Harper, Robert B. Keiter
Great Basin Naturalist
Congress is currently evaluating the wilderness status of Bureau of Land Management (BLM) public lands in Utah. Wilderness areas play many important roles, and one critical role is the conservation of biological diversity. We propose that objectives for conserving biodiversity on BLM lands in Utah be to (1) ensure the long-term population viability of native animal and plant species, (2) maintain the critical ecological and evolutionary processes upon which these species depend, and (3) preserve the full range of communities, successional stages, and environmental gradients. To achieve these objectives, wilderness areas should be selected so as to protect large, contiguous …
Evaluation Of The Gross Anatomy Seasonal Changes Function And Histology Of The Perineal Gland In The Hispid Cotton Rat, Sigmodon Hispidus, Julie Anne Winchell
Evaluation Of The Gross Anatomy Seasonal Changes Function And Histology Of The Perineal Gland In The Hispid Cotton Rat, Sigmodon Hispidus, Julie Anne Winchell
Biological Sciences Theses & Dissertations
The perinea! gland in the hispid cotton rat, Sigmodon hispidus, is a seasonally cyclic, subcutaneously located organ which is associated with the reproductive system. On gross dissection, the gland possesses a strong attachment to the penis with only loose fascia! connections to the rectum and surrounding muscle and skin. Histologic exam confirms this connection to the reproductive tract and shows the organ to be a compound tubuloacinar gland with a projection leading into the penis. The cyclic hypertrophy and regression of the gland closely parallels that of the testes and seminal vesicles indicating that this cyclicity may be under …
On The Relative Importance Of Floral Color, Shape, And Nectar Rewards In Attracting Pollinators To Mimulus, Steven D. Sutherland, Robert K. Vickery Jr.
On The Relative Importance Of Floral Color, Shape, And Nectar Rewards In Attracting Pollinators To Mimulus, Steven D. Sutherland, Robert K. Vickery Jr.
Great Basin Naturalist
Pollinator preferences were observed for the six species of section Erythranthe of the genus Mimulus using greenhouse-grown plants placed in a meadow in the Red Butte Canyon Natural Area, Salt Lake County, Utah. The principal pollinators were hummingbirds and bumble bees. Hummingbirds preferred the species with the most reflexed tubular flowers regardless of color, whereas bumblebees preferred pink. lavender, or yellow flowers to red flowers regardless of shape. Results for the six species were confirmed by observations of F2 hybrid recombinant plants selected such that flower color could be held constant and flower shape varied and vice versa.
Red Butte Canyon Research Natural Area: History, Flora, Geology, Climate, And Ecology, James R. Ehleringer, Lois A. Arnow, Ted Arnow, Irving B. Mcnulty, Norman C. Negus
Red Butte Canyon Research Natural Area: History, Flora, Geology, Climate, And Ecology, James R. Ehleringer, Lois A. Arnow, Ted Arnow, Irving B. Mcnulty, Norman C. Negus
Great Basin Naturalist
Red Butte Canyon is a protected, near pristine canyon entering Salt Lake Valley, Utah. It contains a well-developed riparian zone and a perennial stream; hillside vegetation ranges from grasslands on the lower limits to Douglas-fir and aspen stands at the upper elevations. In this paper we describe the history of human impact, natural history aspects of climate, geology, and ecology, and faunal and floral information for key species in the canyon. The role and importance of Research Natural Areas is discussed, particularly with respect to the need to protect Red Butte Canyon—one of the few remaining undisturbed riparian ecosystems in …
Dna Extraction From Preserved Trout Tissues, D. K. Shiozawa, J. Kudo, R. P. Evans, S. R. Woodward, R. N. Williams
Dna Extraction From Preserved Trout Tissues, D. K. Shiozawa, J. Kudo, R. P. Evans, S. R. Woodward, R. N. Williams
Great Basin Naturalist
We have adapted techniques developed for the extraction of DNA from formalin-fixed, paraffin-imbedded human tissues for use on preserved fish tissues. DNA was successfully extracted and the d-loop region of mitochondrial DNA was amplified with the polymerase chain reaction (PCR). The sequences of the amplified DNA from preserved and modern samples were identical. These techniques were also applied to fin tissue treated with a variety of preservatives. Extraction of DNA from ethyl alcohol and air-dried fin tissues gave yields equivalent to those from frozen tissues. Extraction of DNA from preserved museum specimens of rare or extinct taxa could significantly increase …
Genera Incertae Sedis, Stephen L. Wood, Donald E. Bright Jr.
Genera Incertae Sedis, Stephen L. Wood, Donald E. Bright Jr.
Great Basin Naturalist Memoirs
No abstract provided.
Family Scolytidae, Stephen L. Wood, Donald E. Bright Jr.
Family Scolytidae, Stephen L. Wood, Donald E. Bright Jr.
Great Basin Naturalist Memoirs
No abstract provided.
Index For Platypodidae, Stephen L. Wood, Donald E. Bright Jr.
Index For Platypodidae, Stephen L. Wood, Donald E. Bright Jr.
Great Basin Naturalist Memoirs
No abstract provided.
Subfamily Scolytinae, Stephen L. Wood, Donald E. Bright Jr.
Subfamily Scolytinae, Stephen L. Wood, Donald E. Bright Jr.
Great Basin Naturalist Memoirs
No abstract provided.
List Of Museum Type Repositories, Stephen L. Wood, Donald E. Bright Jr.
List Of Museum Type Repositories, Stephen L. Wood, Donald E. Bright Jr.
Great Basin Naturalist Memoirs
No abstract provided.
Addendum, Stephen L. Wood, Donald E. Bright Jr.
Addendum, Stephen L. Wood, Donald E. Bright Jr.
Great Basin Naturalist Memoirs
No abstract provided.
Subfamily Hylesininae, Stephen L. Wood, Donald E. Bright Jr.
Subfamily Hylesininae, Stephen L. Wood, Donald E. Bright Jr.
Great Basin Naturalist Memoirs
No abstract provided.
Family Platypodidae, Stephen L. Wood, Donald E. Bright Jr.
Family Platypodidae, Stephen L. Wood, Donald E. Bright Jr.
Great Basin Naturalist Memoirs
No abstract provided.
Subfamily Coptonotinae, Stephen L. Wood, Donald E. Bright Jr.
Subfamily Coptonotinae, Stephen L. Wood, Donald E. Bright Jr.
Great Basin Naturalist Memoirs
No abstract provided.
Subfamily Platypodinae, Stephen L. Wood, Donald E. Bright Jr.
Subfamily Platypodinae, Stephen L. Wood, Donald E. Bright Jr.
Great Basin Naturalist Memoirs
No abstract provided.
Index For Scolytidae, Stephen L. Wood, Donald E. Bright Jr.
Index For Scolytidae, Stephen L. Wood, Donald E. Bright Jr.
Great Basin Naturalist Memoirs
No abstract provided.
Key To Subject Areas, Stephen L. Wood, Donald E. Bright Jr.
Key To Subject Areas, Stephen L. Wood, Donald E. Bright Jr.
Great Basin Naturalist Memoirs
No abstract provided.
Hosts Of Scolytidae And Platypodidae, Stephen L. Wood, Donald E. Bright Jr.
Hosts Of Scolytidae And Platypodidae, Stephen L. Wood, Donald E. Bright Jr.
Great Basin Naturalist Memoirs
No abstract provided.
Introduction (English, French, German, And Spanish), Stephen L. Wood, Donald E. Bright Jr.
Introduction (English, French, German, And Spanish), Stephen L. Wood, Donald E. Bright Jr.
Great Basin Naturalist Memoirs
No abstract provided.
Subfamily Tesserocerinae, Stephen L. Wood, Donald E. Bright Jr.
Subfamily Tesserocerinae, Stephen L. Wood, Donald E. Bright Jr.
Great Basin Naturalist Memoirs
No abstract provided.
Supplement To The 1987 Bibliography, Stephen L. Wood, Donald E. Bright Jr.
Supplement To The 1987 Bibliography, Stephen L. Wood, Donald E. Bright Jr.
Great Basin Naturalist Memoirs
No abstract provided.
Radio Transmitter Attachment For Chukars, Bartel T. Slaugh, Jerran T. Flinders, Jay A. Roberson, M. Ray Olson, N. Paul Johnston
Radio Transmitter Attachment For Chukars, Bartel T. Slaugh, Jerran T. Flinders, Jay A. Roberson, M. Ray Olson, N. Paul Johnston
Great Basin Naturalist
Thirty-seven Chukars (Alectoris chukar), fitted with conventional poncho-type radio transmitters, were released on Antelope Island in Utah's Great Salt Lake. Twenty-seven removed their radios, averaging three days after release. The remaining 10 died from predation (average 15 days). Twenty-two Chukars with pleated and six with harness ponchos were then released. Five of the pleated ponchos were removed (average four days), and 17 resulted in mortality (average two days). All six harness poncho-equipped birds were dead the following day. A consequential laboratory study comparing various attachment methods (conventional, pleated, harness, and "irreversible" flange poncho vs. bellystrap and wingstrap backpack) …
Winter Habitats And Foods Of Blue Grouse In The Sheeprock Mountains, Utah, Peter J. Perkins, Frederick G. Lindzey, Jay A. Roberson, Gregory Mcdaniel, Randy Berger
Winter Habitats And Foods Of Blue Grouse In The Sheeprock Mountains, Utah, Peter J. Perkins, Frederick G. Lindzey, Jay A. Roberson, Gregory Mcdaniel, Randy Berger
Great Basin Naturalist
Winter habitat use and food habits of Blue Grouse (Dendragapus obscurus) were studied in an isolated Utah desert mountain range that contained little typical Douglas-fir (Pseudotsuga menziesii) winter habitat. Habitat use was concentrated in the Douglas-fir and pinyon (Pinus edulis)–juniper (Juniperus spp.) habitat. Douglas-fir and pinyon pine were the most consumed foods. Other foods that represented >15% of the composition of an individual fecal sample were limber pine (Pinus flexilis), mahogany (Cercocarpus ledifoliu), juniper, and an Anteunaria–Cirsium type. The breadth in winter diet indicates that Blue Grouse may …
Changes In Mule Deer Size In Utah, Dennis D. Austin, Robert A. Riggs, Philip J. Urness, David L. Turner, John F. Kimball
Changes In Mule Deer Size In Utah, Dennis D. Austin, Robert A. Riggs, Philip J. Urness, David L. Turner, John F. Kimball
Great Basin Naturalist
Trends in age-specific, eviscerated carcass weights were determined for hunter-harvested yearling and two-year-old buck mule deer. Carcass weights declined over an 11-year period from two areas of similar management, but with independenly collected data sets. Carcass weights also declined between the opening and second weekends of the hunt. Management implications are discussed.