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Articles 4741 - 4770 of 10756
Full-Text Articles in Botany
Acer X Freemanii E. Murray [Rubrum × Saccharinum], Gordon C. Tucker
Acer X Freemanii E. Murray [Rubrum × Saccharinum], Gordon C. Tucker
Specimens by Name
No abstract provided.
Fontanesia Fortunei Carrière, Sarah Packard, Pat Vastalo, Al Smith
Fontanesia Fortunei Carrière, Sarah Packard, Pat Vastalo, Al Smith
Specimens by Name
No abstract provided.
Host Resistance To Monilinia Vaccinii-Corymbosi In Flowers And Fruits Of Highbush Blueberry, Jeffery S. Lehman, Suzu Igarashi, Peter V. Oudemans
Host Resistance To Monilinia Vaccinii-Corymbosi In Flowers And Fruits Of Highbush Blueberry, Jeffery S. Lehman, Suzu Igarashi, Peter V. Oudemans
Biology and Earth Science Faculty Scholarship
Monilinia vaccinii-corymbosi, the causal agent of mummy berry disease, infects blueberry flowers via the gynoecial pathway. To describe the expression of host resistance in highbush blueberry (Vaccinium corymbosum), fungal growth in the styles and colonization of the locules were compared among five blueberry cultivars in a series of controlled greenhouse experiments. Styles were harvested 1 and 4 days postinoculation, and the length colonized by hyphae was determined using fluorescence microscopy. At 8 weeks after inoculation, fruit were harvested and scored for the presence of hyphae in the locules. The infection frequency of styles ranged from 0.33 to 0.71, and only …
Botanical Survey Of Fuel Reduction Areas On The Pine Ridge Ranger District Of The Nebraska National Forest, Steven B. Rolfsmeier, Leslie Stewart-Phelps
Botanical Survey Of Fuel Reduction Areas On The Pine Ridge Ranger District Of The Nebraska National Forest, Steven B. Rolfsmeier, Leslie Stewart-Phelps
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
Between May and September 2006, surveys of selected areas on the Pine Ridge Unit of the Pine Ridge Ranger District in the Nebraska National Forest were carried out to document the presence of vascular plant species of known or potential conservation concern. The surveys were done in response to a request for botanical information to include in hazardous fuel projects in the East Ash and West Ash drainages. These 2006 surveys concentrated primarily on these drainages, though small forested areas were also examined in the Deadhorse Creek and Indian Creek drainages. (Data from these sites are included in the following …
Sfa Gardens Newsletter, Summer 2007, Sfa Gardens, Stephen F. Austin State University
Sfa Gardens Newsletter, Summer 2007, Sfa Gardens, Stephen F. Austin State University
SFA Gardens Newsletters
No abstract provided.
Fraxinus Angustifolia Reut. Ex Nym., Miguez Miguez
Fraxinus Angustifolia Reut. Ex Nym., Miguez Miguez
Specimens by Name
No abstract provided.
Comptonia Peregrina (L.) J.M. Coult., Gerry Moore, Catherine Rushworth
Comptonia Peregrina (L.) J.M. Coult., Gerry Moore, Catherine Rushworth
Specimens by Name
No abstract provided.
Syringa Reticulata Subsp. Reticulata (Blume) H. Hara, Sarah Packard, Pat Vastalo
Syringa Reticulata Subsp. Reticulata (Blume) H. Hara, Sarah Packard, Pat Vastalo
Specimens by Name
No abstract provided.
Acer Tataricum L., Edie Moan, Penny Wagner
Samolus Valerandi L., Steven D. Glenn
The Prairie Naturalist, Volume 39, No. 2 June 2007
The Prairie Naturalist, Volume 39, No. 2 June 2007
The Prairie Naturalist
USING DISTANCE SAMPLING TO ESTIMATE DENSITIES OF WHlTE-TAILED DEER IN SOUTH-CENTRAL MINNESOTA, M. A. LaRue, C. K. Nielsen, and M. D. Grund
BURROWING OWL ASSOCIATIONS WITH BLACK-TAILED PRAIRIE DOG COLONIES IN SOUTHWESTERN KANSAS AND SOUTHEASTERN COLORADO, S. L. Winter and J. F. Cully, Jr.
OPTIMAL FORAGING IN EASTERN FOX SQUIRREL: FOOD SIZE MATTERS FOR A GENERALIST FORAGER, R. Tatina
IN MEMORIAM: ROBERT N. RANDALL. C. Talkington
Editor's Note regarding Christmas Bird Count
OCCURRENCES OF SMALL MAMMAL SPECIES IN A MIXEDGRASS PRAIRIE IN NORTHWESTERN NORTH DAKOTA, R. K. Murphy, R. A. Sweitzer, and J. D. Albertson
SILPHIDAE (INSECTA: COLEOPTERA) COLLECTED IN …
Burrowing Owl Associations With Black-Tailed Prairie Dog Colonies In Southwestern Kansas And Southeastern Colorado, Stephen L. Winter, Jack F. Cully Jr.
Burrowing Owl Associations With Black-Tailed Prairie Dog Colonies In Southwestern Kansas And Southeastern Colorado, Stephen L. Winter, Jack F. Cully Jr.
The Prairie Naturalist
We quantified the use of black-tailed prairie dog (Cynomys ludovicianus) colonies as habitat for the burrowing owl (Athene cunicularia) in southwestern Kansas and southeastern Colorado. We used incidental sightings and breeding season avifauna surveys to document the presence of the burrowing owl on black-tailed prairie dog colonies, non-colonized rangeland, and cropland during the spring and early summer. Burrowing owl rarely was observed on noncolonized rangeland and cropland sites, and black-tailed prairie dog colonies appear to be used substantially as a habitat type for the burrowing owl in the region encompassing Cimarron and Commanche National Grasslands in …
Editor's Note Regarding Christmas Bird Count, Elmer J. Finck
Editor's Note Regarding Christmas Bird Count, Elmer J. Finck
The Prairie Naturalist
Lawrence Igl has agreed to summarize the North Dakota Christmas Bird Counts for submission to The Prairie Naturalist. We plan to have a short biography for Larry when the first summary is published. Elmer J. Finck, Editor
Notes On Black-Footed Ferret Detectability And Behavior, David S. Jachowski
Notes On Black-Footed Ferret Detectability And Behavior, David S. Jachowski
The Prairie Naturalist
Despite over two decades of recovery efforts, the black-footed ferret (Mustela nigripes) remains one of the least understood and most critically endangered mammals in North America. Once extinct in the wild, over 2,400 captive-born individuals of black-footed ferret (hereafter referred to as ferret) have been released at 13 reintroduction sites ranging from northern Montana to Chihuahua, Mexico, since 1991. However, ferret populations currently are considered to be self-sustaining at only two sites in South Dakota and a single site in Wyoming (United States Fish and Wildlife Service 2006). To understand why ferret recovery is not succeeding at a …
Silphidae (Insecta: Coleoptera) Collected In North Central North Dakota, Including New Occurrences Of Thanatophilus Sagax (Mannerheim),, Guy A. Hanley
Silphidae (Insecta: Coleoptera) Collected In North Central North Dakota, Including New Occurrences Of Thanatophilus Sagax (Mannerheim),, Guy A. Hanley
The Prairie Naturalist
Members of the beetle family Silphidae are relatively large (10-35 mm) and often brightly colored insects. They usually are found in association with dead animal bodies (carrion), but some are phytophagous while others are predatory. Thirty endemic species are known to occur in North America north of Mexico (Ratcliffe 1996), and 17 species in North Dakota. (Hanley et aI., unpublished data). To date, there has been little to no silphid collection data available from north central North Dakota counties, due mostly to the lack of entomological research in the area.
Nine species of silphids were collected in a single season …
Optimal Foraging In Eastern Fox Squirrel: Food Size Matters For A Generalist Forager, Robert Tatina
Optimal Foraging In Eastern Fox Squirrel: Food Size Matters For A Generalist Forager, Robert Tatina
The Prairie Naturalist
Classical optimal foraging theory (OFT) predicts that an animal forages optimally when it chooses foods with the highest energy benefit or minimizes time searching for and handling food. r evaluated OFT by presenting eastern fox squirrel (Sciurus niger) multiple food items (i.e., sunflower seeds and • fruits) in various density combinations. When the choice was between foods of equal energy benefits but different costs, they chose forage items with greater costs, seemingly not foraging optimally. However, individuals showed a partial preference for food items which minimized search time, but not handling time. The eastern fox squirrel also was …
Review Of Appreciating Your Feathered Neighbors, By Dana Gardner And Nancy Overcott, Melinda G. Knutson
Review Of Appreciating Your Feathered Neighbors, By Dana Gardner And Nancy Overcott, Melinda G. Knutson
The Prairie Naturalist
Fifty Common Birds of the Upper Midwest. Watercolors by Dana Gardner; text by Nancy Overcott. 2006. University of Iowa Press, Iowa City, Iowa. 106 pages. $34.95 (cloth).
What's the best way to interest a friend in bird watching? Buy them a field guide, a CD of bird songs, or take them out bird watching? All of these ideas might work, but another approach is to tell personal stories and draw pictures of common birds in yards, parks, and natural areas where they live; help them "get to know their neighbors with feathers." That's exactly what Dana Gardner and Nancy Overcott …
In Memoriam Robert N. Randall, October 26, 1915 - January 30, 2007, Clark Talkington
In Memoriam Robert N. Randall, October 26, 1915 - January 30, 2007, Clark Talkington
The Prairie Naturalist
Among his friends, Bob Randall will be remembered as a caring, gentle man. Bob was one of those rare individuals who had a keen awareness of everyone around him. In social settings, he would make sure that everyone was comfortable, and it was always clear that he was genuinely concerned about everyone. Those who knew him will greatly miss his gentle nature and enthusiasm for birds. He never got caught up in all of his achievements. He had a sense of balance to his life which was evident in his many interests including birding and bird banding, rocks and minerals, …
First Record Of Field Speedwell From South Dakota, Robert Tatina
First Record Of Field Speedwell From South Dakota, Robert Tatina
The Prairie Naturalist
Veronica agrestis L. (field speedwell or green field speedwell), a member of the Scrophulariaceae, is a small, weedy, prostrate annual with blue or white flowers (Gleason and Cronquist 1991). Until recently, its distribution included most of the eastern half of the United States and the southern two-thirds of the Great Plains, but not South Dakota (http://plants.usda.gov/java/profile?symbol=VEAG &photoID=veag_001_avd.tif, accessed 5 February 2007). Neither the Great Plains Flora Association (1986) nor Van Bruggen (1996) includes this species in the flora of South Dakota; however, the former has it naturalized in southeastern Nebraska and in Iowa (Great Plains Flora Association 1986). In May, …
Using Distance Sampling To Estimate Densities Of White-Tailed Deer In South-Central Minnesota, Michelle A. Larue, Clayton K. Nielsen, Marrett D. Grund
Using Distance Sampling To Estimate Densities Of White-Tailed Deer In South-Central Minnesota, Michelle A. Larue, Clayton K. Nielsen, Marrett D. Grund
The Prairie Naturalist
Distance sampling is a method of estimating population abundance and density used by wildlife biologists for several species because of its advantages relative to other techniques. However, few wildlife biologists have used distance sampling to estimate abundance of white-tailed deer (Odocoileus virginianus). We describe a distance sampling technique used to estimate prehunt and post-hunt population densities of deer in Watonwan County, Minnesota. Estimates of white-tailed deer density were compared between distance sampling versus population modeling, and costs for distance sampling versus aerial surveys were determined. We drove 2,704 km during 24 spotlight surveys conducted from 21 October to …
Marshes-In Photos And Words. Review Of Marshes: The Disappearing Edens By Bill Burt, Douglas H. Johnson
Marshes-In Photos And Words. Review Of Marshes: The Disappearing Edens By Bill Burt, Douglas H. Johnson
The Prairie Naturalist
Bill Burt has done it again. The author of two superbly illustrated books (Shadowbirds and Rare and Elusive Birds of North America) that were reviewed earlier in this journal, Burt has returned with another excellent book, this one focusing on marshes. Like his earlier books, Marshes features wonderful close-up views of many hard-to-photograph birds. Here, in addition, are grand images of marsh landscapes and other marsh denizens, especially plants. Burt best characterizes his own book, which he intends as "an evocation and exploration, rather than a catalog of marshland life." He tells of his 30 years spent prowling …
Occurrences Of Small Mammal Species In A Mixedgrass Prairie In Northwestern North Dakota,, Robert K. Murphy, Richard A. Sweitzer, John D. Albertson
Occurrences Of Small Mammal Species In A Mixedgrass Prairie In Northwestern North Dakota,, Robert K. Murphy, Richard A. Sweitzer, John D. Albertson
The Prairie Naturalist
Documentation is limited for many species of vertebrates in the northern Great Plains, particularly northwestern North Dakota (Bailey 1926, Hall 1981). Here we report relative abundances of small « 450 g) species of mammals that were captured incidental to surveys of amphibians and reptiles at Lostwood National Wildlife Refuge (LNWR) in northwestern North Dakota from 1985 to 1987 and 1999 to 2000. Our records include a modest range extension for one species. We also comment on relationships of small mammals on the refuge to vegetation changes associated with fire and grazing disturbances.
Comptonia Peregrina (L.) J.M. Coult., Dteven D. Glenn
Comptonia Peregrina (L.) J.M. Coult., Dteven D. Glenn
Specimens by Name
No abstract provided.
Ligustrum Vulgare L., Charlene Kubic, Bud Ewert, Chris Courtney
Ligustrum Vulgare L., Charlene Kubic, Bud Ewert, Chris Courtney
Specimens by Name
No abstract provided.
Viola Adunca Var. Adunca Sm., Elizabeth Punter
Viola Adunca Var. Adunca Sm., Elizabeth Punter
Specimens by Name
No abstract provided.
Acer Pensylvanicum L., Evelyn Mears, Joyce Beck, Laurie Glaysher
Acer Pensylvanicum L., Evelyn Mears, Joyce Beck, Laurie Glaysher
Specimens by Name
No abstract provided.
Viola Pedata L., Loy R. Phillippe
Claytonia Virginica L., Loy R. Phillippe
First Record Of Corisella Inscripta (Uhler) (Heteroptera: Corixidae) From North Dakota, Bruce A. Hanson, David M. Mushet, Ned A. Euliss Jr., Stephen Chordas Iii
First Record Of Corisella Inscripta (Uhler) (Heteroptera: Corixidae) From North Dakota, Bruce A. Hanson, David M. Mushet, Ned A. Euliss Jr., Stephen Chordas Iii
The Prairie Naturalist
Corisella inscripta is a water boatman species that was reported in H. B. Hungerford's (1948) seminal monograph as occurring throughout Mexico and nine western states of the United States. Subsequently, additional records of C. inscripta have been reported for British Columbia in Canada (Maw et al. 2000) and for Montana (Roemhild 1976), Arkansas (Cochran and Harp 1990), Missouri (Polhemus et al. 1988), Ohio (Chordas and Armitage 1998), and Michigan (Chordas et al. 2002) in the United States. There have been no published records of C. inscripta from North Dakota (Fig. I). We collected one male C. inscripta at the Cottonwood …
Review Of Some Scarce Birds Of The Upper Midwest By Dana Gardner And Nancy Overcott, Stephen J. Dinsmore
Review Of Some Scarce Birds Of The Upper Midwest By Dana Gardner And Nancy Overcott, Stephen J. Dinsmore
The Prairie Naturalist
Fifty Uncommon Birds of the Upper Midwest. Watercolors by Dana Gardner; text by Nancy Overcott. 2007. University of Iowa Press, Iowa City, Iowa. 112 pages. $34.95 (cloth).
Nancy Overcott has written series of short essays of birds found in the Upper Midwest and assembled them in an easy-to-read book. As an ornithologist and avid birder in this region, I'll admit that I didn't know what to expect when I opened the cover-would the focus be on rarities, would there be an identification component, are there tips for finding each species, and at what audience was the book aimed? Ultimately, I …