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Articles 9931 - 9960 of 10384
Full-Text Articles in Entire DC Network
Athel (Tamarix Aphylla) And Athel Hybrid (Tamarix Aphyllax Tamarix Ramosissima)Establishment And Control At Lake Mead National Recreation Area, Carrie Norman, Curt Deuser, Joshua Hoines
Athel (Tamarix Aphylla) And Athel Hybrid (Tamarix Aphyllax Tamarix Ramosissima)Establishment And Control At Lake Mead National Recreation Area, Carrie Norman, Curt Deuser, Joshua Hoines
Lake Mead Science Symposium
Athel is a large evergreen ornamental tree that has been planted throughout the Southwest since the 1950’s. Athel was considered benign because it was thought to produce non-viable seed unlike its invasive relative, tamarisk. However, athel began establishing in the wild from seed on Lake Mead in 1983. Lake Mead NRA has been actively controlling athel since November 2004 along the high water mark of Lake Mead shoreline (439 miles) to prevent it from spreading throughout the Colorado River Drainage. The NPS contracts Nevada Conservation Corp crews and the Lake Mead Exotic Plant Management Team to implement the control efforts …
Third Report Of The North Dakota Bird Records Committee: 2004-2005, Dan Svingen, Ron E. Martin
Third Report Of The North Dakota Bird Records Committee: 2004-2005, Dan Svingen, Ron E. Martin
The Prairie Naturalist
Since 1979, North Dakota's bird records committee has collected, evaluated, and archived documentations of rare bird occurrences in the state. In 2004 and 2005, this committee resolved 189 rare bird records. On the basis of these record reviews, six species were ad~ed to the North Dakota state bird list: mottled duck (Anas fulvigula), yellow-billed loon (Cavia adamsii), white-tailed kite (Elanus leucurus), little stint (Calidris minuta), glaucous-winged gull (Larus glaucescens), and great black-backed gull (Larus marinus). Four species were added to the list of nesting species within the state: snowy …
Effect Of Drought And Agriculture On Ring-Necked Pheasant Abundance, Nebraska Panhandle, Charles J. Randel Iii
Effect Of Drought And Agriculture On Ring-Necked Pheasant Abundance, Nebraska Panhandle, Charles J. Randel Iii
The Prairie Naturalist
The objectives of my study were to detennine the effects of drought (e.g., Palmer Modified Drought Severity Index; PMDI, Bridges et at. 2001) and/or agricultural practices (e.g., conversion) on RNP abundance in the Nebraska Panhandle (NP).
My RNP survey data were found to be correlated negatively to drought condition (PMDI) in January, February, and April. This was supported by Snyder (1984) and Riley (1995), both of whom reported that decreased precipitation in spring affected RNP production in the western Great Plains and Iowa, respectively. Late winter and early spring drought affect subsoil moisture and decrease primary production (Kiesselbach et al. …
The Prairie Naturalist Manuscript Submission Guidelines, Christopher N. Jacques, Troy W. Grovenburg, Jonathan Jenks
The Prairie Naturalist Manuscript Submission Guidelines, Christopher N. Jacques, Troy W. Grovenburg, Jonathan Jenks
The Prairie Naturalist
These guidelines present The Prairie Naturalist (PNAT) policies and procedures for submitting scientific manuscripts for consideration for publication. In January 2009, a change in Editorial staff occurred and these guidelines address the ongoing transition and update the online "Suggestions for Contributors" guidelines provided on the PNAT website (http://www.fhsu.edu/biology/pn/prairienat.htm); these instructions supersede all previous guidelines. Tables and appendices are included for common word expressions with superfluous wording, examples of correct format and style guidelines for tables accompanying manuscripts, guidance in properly preparing Research Articles and Notes, citing literature, and mandatory abbreviations for tables, figures and parenthetical expressions.
Early Post-Fire Plant Establishment On A Mojave Desert Burn, Scott R. Abella, E. Cayenne Engel, Christina L. Lund, Jessica E. Spencer
Early Post-Fire Plant Establishment On A Mojave Desert Burn, Scott R. Abella, E. Cayenne Engel, Christina L. Lund, Jessica E. Spencer
Public Policy and Leadership Faculty Research
Fire has become more extensive in recent decades in southwestern United States arid lands. Burned areas pose management challenges and opportunities, and increasing our understanding of post-fire plant colonization may assist management decision-making. We examined plant communities, soils, and soil seed banks two years after the 2005 Loop Fire, located in a creosote-blackbrush community in Red Rock Canyon National Conservation Area in southern Nevada’s Mojave Desert. Based on a spring sampling of 20, 0.01-ha plots, live + dead cover of the exotic annual Bromus rubens averaged nine times lower on the burn than on a paired unburned area. Perennial species …
Progress In Strategic Research Areas, Scott R. Abella
Progress In Strategic Research Areas, Scott R. Abella
Public Policy and Leadership Faculty Research
Three years ago through conversations with resource managers, assessing the status of knowledge of the scientific literature, and our own interests, we set forth several strategic research areas that we believed would be timely for advancing Mojave Desert conservation and management.
Common Raven Nests In North Dakota After 100-Year Hiatus, Melvin P. Nenneman, Todd A. Grant, Ron E. Martin
Common Raven Nests In North Dakota After 100-Year Hiatus, Melvin P. Nenneman, Todd A. Grant, Ron E. Martin
The Prairie Naturalist
Our observations represent the first documented nesting by the common raven in North Dakota since the late 1800's. Houston (1977) suggested that the expansion of the American crow onto the Canadian prairies was limited by the scarcity of trees for nest sites, which also might have limited the extent of the common raven. Aspen woodland has increased substantially in and around J. Clark Salyer National Wildlife Refuge since European settlement, due primarily to fire suppression and extirpation of large herbivores (Grant and Murphy 2005). Thus, plausibly these increases in woodland habitat might be providing nest sites necessary for the common …
Factors Associated With Duck Use Of Impounded And Natural Wetlands In Western South Dakota, Jane E. Austin, Deborah A. Buhl
Factors Associated With Duck Use Of Impounded And Natural Wetlands In Western South Dakota, Jane E. Austin, Deborah A. Buhl
The Prairie Naturalist
Many wetlands in the northern Great Plains west of the Missouri River are stock ponds, created by impoundment of natural drainages or excavation of existing wetlands to provide water for livestock or improve habitat for waterfowl. We evaluated factors influencing use of wetlands by breeding duck pairs and broods relative to modification, water regime, size, and hydrological location on United States Forest Service lands within the Grand River National Grassland in northern South Dakota (2003 and 2004). Responses for both indicated pairs and broods were related positively to wet area, total wetland area within 4 km, emergent edge cover, and …
Brood Parasitism In A North American Population Of White-Faced Ibis, Mark E. Clark
Brood Parasitism In A North American Population Of White-Faced Ibis, Mark E. Clark
The Prairie Naturalist
In 2007 while monitoring reproductive success among various overwater nesting birds at J. Clark Salyer National Wildlife Refuge in North Dakota, I observed parasitism of a white-faced ibis nest by a cattle egret. I located a nest on 23 May 2007 that contained four white-faced ibis eggs and one cattle egret egg. The nest was located in the middle of a small colony of nesting white-faced ibis (approximately 35 pairs) and black-crowned night herons (approximately 30 pairs). On 3 June 2007 all of the eggs were still present in the nest, but two of the white-faced ibis eggs began hatching …
Joint Fire Science Program – Lake Mead National Recreation Area: Revegetating Burned Arid Lands: Identifying Successful Native Species Using Trait And Competition Analysis, Quarterly Progress Report, October 1 — December 31, 2008, Margaret N. Rees
Fire Science
• Presented poster at Natural Areas Conference in Nashville, TN
• Initiated granivory study at Goodsprings.
• Outplanted 2376 plants for Experiment 1 at Lake Mead nursery.
• Presented poster at Wildfires and Invasive Plants in American Deserts conference in Reno, NV.
• Submitted manuscript covering our distance from road - microsite invasibility study to Journal of Arid Environments.
Lake Mead National Recreation Area Vegetation Monitoring And Analysis: Quarterly Progress Report, October 1, 2008 To December 31, 2008, Margaret N. Rees
Lake Mead National Recreation Area Vegetation Monitoring And Analysis: Quarterly Progress Report, October 1, 2008 To December 31, 2008, Margaret N. Rees
Vegetation Monitoring
Executive Summary
- The Weed Sentry program surveyed over 62 miles of federal land by vehicle and foot in Clark County for incipient populations of exotic plants.
- New weed monitoring botanists and botany assistant joined the staff during this period.
- Vegetation staff presented four presentations at the Natural Areas Association annual conference in Nashville, TN and eight poster presentations at the “wildfires and invasive plants in American deserts” meeting in Reno, NV.
- Several new Brassica tournefortii experiments were initiated.
Early Post-Fire Recovery On A Heavily Visited Mojave Desert Burn: Red Rock Canyon Near Las Vegas, Nevada, Scott R. Abella, E. Cayenne Engel, Christina L. Lund, Jessica E. Spencer
Early Post-Fire Recovery On A Heavily Visited Mojave Desert Burn: Red Rock Canyon Near Las Vegas, Nevada, Scott R. Abella, E. Cayenne Engel, Christina L. Lund, Jessica E. Spencer
Fire Science Presentations
Wildfire has become widespread in southwestern USA deserts. In a record 2005 fire season in the Mojave Desert, for example, more than 385,000 hectares burned (Brooks and Matchett 2006). This burned area is approximately 3% of the entire Mojave Desert. Fueled in large part by exotic annual grasses, these fires burned desert ecosystems thought to have only burned infrequently historically. Burns now occupy significant portions of desert landscapes, posing prominent management challenges. Improving our understanding of plant recovery on desert burns is important for evaluating future fire hazard, whether natural revegetation will meet management objectives, and for planning active revegetation …
Post-Fire Plant Recovery In The Mojave And Sonoran Deserts Of Western North America, Scott R. Abella, Public Lands Institute, Department Of Environmental Studies, University Of Nevada, Las Vegas
Post-Fire Plant Recovery In The Mojave And Sonoran Deserts Of Western North America, Scott R. Abella, Public Lands Institute, Department Of Environmental Studies, University Of Nevada, Las Vegas
Fire Science Presentations
Fire is thought to have been generally rare historically in the Mojave and Sonoran Deserts. However, invasion by exotic grasses (e.g., Schismus spp.) has increased fuel continuity, promoting fire in these deserts. Succession and recovery are not well understood processes in deserts, nonetheless for a novel disturbance like fire. In addition to helping build theories of desert succession and recovery, information on post-fire recovery has numerous practical implications (e.g., determining whether active revegetation is needed). Systematic reviews provide a means for obtaining literature using reproducible search criteria. This approach facilitates a balanced appraisal of available information, synthesizes scattered literature, and …
Using A Diverse Seed Mix To Establish Native Plants On A Sonoran Desert Burn, Scott R. Abella, John L. Gunn, Mark L. Daniels, Judith D. Springer, Susan E. Nyoka
Using A Diverse Seed Mix To Establish Native Plants On A Sonoran Desert Burn, Scott R. Abella, John L. Gunn, Mark L. Daniels, Judith D. Springer, Susan E. Nyoka
Fire Science Presentations
- Revegetating burned areas is a formidable challenge facing resource managers in southwestern United States arid lands.
- Natural revegetation of desert burns by native species may be slow, or dominated by exotic annual grasses that perpetuate a frequent-fire regime.
- Resource managers may have several reasons for actively revegetating burns with native species, such as for providing competition with exotic species, minimizing soil erosion and dust pollution, and improving aesthetics.
- The use of native species in revegetation has been limited by a lack of available seed and by findings that native desert species are difficult to establish (e.g., Bainbridge and Virginia 1990, …
Lake Mead National Recreation Area Vegetation Monitoring And Analysis: Year-End Progress Report, October 1, 2007 To September 30, 2008, Margaret N. Rees
Lake Mead National Recreation Area Vegetation Monitoring And Analysis: Year-End Progress Report, October 1, 2007 To September 30, 2008, Margaret N. Rees
Vegetation Monitoring
Executive Summary
- The Weed Sentry program surveyed over 335 miles and 2,610 acres of transportation corridors on federal land in Clark County for incipient populations of exotic plants.
- 18 manuscripts attained in-press or published status and one manuscript was submitted for review this year. Among published manuscripts, are one documenting Sahara mustard germination patterns (Western North American Naturalist), one assessing exotic species distributions in Clark County (Environmental Monitoring and Assessment), and another is a synthesis of burro effects on Mojave Desert vegetation (Environmental Management), and one assessing vegetation in grassy remnants of the Las Vegas Valley (Desert Plants)
- Staff delivered …
A Case Study Of A Successful Lake Rehabilitation Project In South-Central Nebraska, Peter J. Spirk, Brad Newcomb, Keith D. Koupal
A Case Study Of A Successful Lake Rehabilitation Project In South-Central Nebraska, Peter J. Spirk, Brad Newcomb, Keith D. Koupal
The Prairie Naturalist
Cottonmill Lake, a 17.4 ha impoundment located in Buffalo County, Nebraska, was a fishery dominated by common carp (Cyprinus carpio). As a result of the poor sportfish populations, angler participation in May and June of 1993 was low (503 ± 210 angler hours) and angler catch rates for all fish species (0.5 ± 0.4 fish/angler hour) was less than desired. In 1995, before rehabilitation, bluegill (Lepomis macrochirus) trap net catch per unit effort (CPUE) was 1.5 ± 0.9, largemouth bass (Micropterus salmoides) catch per hour of electrofishing was 8.0 ± 0.5, and channel catfish (Ictalurus punctatus) …
The Prairie Naturalist. Volume 40, No. 3/4 September/December 2008, The Great Plains Natural Science Society
The Prairie Naturalist. Volume 40, No. 3/4 September/December 2008, The Great Plains Natural Science Society
The Prairie Naturalist
WINTERKILL AND BIOMASS OF THE PAINTED TURTLE IN A SOUTH DAKOTA WETLAND. S. G. Platt, Z. Fast Horse, W. Cross, S. Mannel, and T. R. Rainwater
NON-BLACKBIRD AVIAN OCCURRENCE AND ABUNDANCE IN NORTH DAKOTA SUNFLOWER FIELDS. O. A. Schaaf, G. M. Linz, C. Ooetkott, M. W. Lutman, and W. J. Bleier
USING LOCAL KNOWLEDGE AND REMOTE SENSING TO MAP KNOWN AND POTENTIAL PRAIRIE-CHICKEN DISTRIBUTION IN KANSAS. M. E. Houts, R. O. Rodgers, R. D. Applegate, and W. H. Busby
A CASE STUDY OF A SUCCESSFUL LAKE REHABILITATION PROJECT IN SOUTH-CENTRAL NEBRASKA. P. J. Spirk, B. A. Newcomb, and K. O. …
Non-Blackbird Avian Occurrence And Abundance In North Dakota Sunflower Fields, Dionn A. Schaaf, George M. Linz, Curt Doetkott, Mark W. Lutman, William J. Bleier
Non-Blackbird Avian Occurrence And Abundance In North Dakota Sunflower Fields, Dionn A. Schaaf, George M. Linz, Curt Doetkott, Mark W. Lutman, William J. Bleier
The Prairie Naturalist
Sunflower fields are well-documented as foraging habitat for fallmigrating blackbirds (Family Icteridae). There is, however, a paucity of information on the use of sunflower fields by non-blackbirds. We assessed non-blackbird use of 12 ripening sunflower fields in the Prairie Pothole Region of central North Dakota. From mid-August to mid-October 2000, we counted 4,129 individual birds, consisting of 22 families and 61 species, in the sample fields and within 5 m of the field edges. We saw the largest number of birds from 18 September to 27 September. The Family Emberizidae (sparrows) accounted for 26% of the species and 20% of …
Winterkill And Biomass Of The Painted Turtle In A South Dakota Wetland, Steven G. Platt, Zannita Fast Horse, Warren Cross, Sylvio Mannel, Thomas R. Rainwater
Winterkill And Biomass Of The Painted Turtle In A South Dakota Wetland, Steven G. Platt, Zannita Fast Horse, Warren Cross, Sylvio Mannel, Thomas R. Rainwater
The Prairie Naturalist
Winterkill occurs when drought conditions expose hibernating turtles to desiccation and lethaly cold temperatures. Winterkill is thought to represent a major source of mortality in northern populations of the painted turtle (Chrysemys picta), but few field observations are available. We herein reported on catastrophic winterkill among western painted turtle (C. pieta bellii) at Limestone Butte Lake (LBL) in western South Dakota during the winter of 2003-2004. Additionally, we used the carcasses of winterkilled turtles (n = 86) to estimate the standing crop biomass of the painted turtle at LBL (0.6 kg/ha). This was the only estimate …
Using Local Knowledge And Remote Sensing To Map Known And Potential Prairie-Chicken Distribution In Kansas, Michael E. Houts, Randy D. Rodgers, Roger D. Applegate, William H. Busby
Using Local Knowledge And Remote Sensing To Map Known And Potential Prairie-Chicken Distribution In Kansas, Michael E. Houts, Randy D. Rodgers, Roger D. Applegate, William H. Busby
The Prairie Naturalist
The greater prairie-chicken (Tympanuchus cupido) and lesser prairie-chicken (Tympanuchus pallidicinctus) have experienced considerable fluctuations in their range and distribution over time. Having current range maps would help wildlife managers and policy makers with decisions regarding prairie-chicken habitat. To create an updated and accurate map of the Kansas prairie-chicken range, a two-pronged approach was implemented. First, a map of potential habitat was created by using known habitat preferences and avoidance factors. Second, a preliminary map showing the distribution of greater and lesser prairie-chickens was created and mailed to regional experts for comments and edits. The returned edits …
Estimating Soil Seed Bank Characteristics In Ponderosa Pine Forests Using Vegetation And Forest-Floor Data, Scott R. Abella, Judith D. Springer
Estimating Soil Seed Bank Characteristics In Ponderosa Pine Forests Using Vegetation And Forest-Floor Data, Scott R. Abella, Judith D. Springer
Public Policy and Leadership Faculty Research
Soil seed banks are important for vegetation management because they contain propagules of species that may be considered desirable or undesirable for site colonization after management and disturbance events. Knowledge of seed bank size and composition before planning management activities facilitates proactive management by providing early alerts of exotic species presence and of abilities of seed banks to promote colonization by desirable species. We developed models in ponderosa pine (Pinus ponderosa) forests in northern Arizona to estimate the size and richness of mineral soil seed banks using readily observable vegetation and forestfloor characteristics. Regression models using three or fewer predictors …
Nest Site Preference And Nesting Success Of Upland Sandpiper On Grazing Systems In East Central North Dakota-, Blane A. Klemek
Nest Site Preference And Nesting Success Of Upland Sandpiper On Grazing Systems In East Central North Dakota-, Blane A. Klemek
The Prairie Naturalist
require ranchers to move their cattle throughout the range from one paddock to another, thereby allowing formerly grazed paddocks to regenerate. This is beneficial in a number of ways: overgrazing is reduced, cattle weight-gains are improved, suitable nesting cover for ground nesting birds is produced, and the overall health of the grassland is enhanced (Sedivec and Barker 1991). The objectives of my study were to investigate nesting success of the upland sandpiper as a function of grazing regime. Specifically, I was interested in comparing nesting success between RGS and non-rotational grazing systems (NRGS) and to examine relationships between nest site …
Semi-Melanistic White-Tailed Deer In Northern Wisconsin, Christopher N. Jacques, Keith R. Mccaffery, Jonathan Jenks, John T. Baccus
Semi-Melanistic White-Tailed Deer In Northern Wisconsin, Christopher N. Jacques, Keith R. Mccaffery, Jonathan Jenks, John T. Baccus
The Prairie Naturalist
Melanistic color morphs of white-tailed deer (Odocoileus virginianus) are differentiated from other recognized color morphs by having uniform black hairs on the dorsal surface with subdued black hairs on the ventral surface, dark face and ears, a distinctive mid-dorsal stripe extending from the head to the apex of the tail, and a tail with black dorsally and white ventrally (Baccus and Posey 1999). Melanism results from the overproduction of the skin pigment melanin and is considered rare in white-tailed deer populations (Severinghaus and Cheatum 1956, Sauer 1984, Smith et al. 1984). Semi-melanistic deer have the same dark pelage …
The Prairie Naturalist 2008, Volume 40: Reviewers, Author Index, & Subject Index
The Prairie Naturalist 2008, Volume 40: Reviewers, Author Index, & Subject Index
The Prairie Naturalist
No abstract provided.
Paddlefish Egg Deposition In The Lower Yellowstone River, Montana And North Dakota, Shannon E. Miller, Dennis L. Scarnecchia, Steven R. Fain
Paddlefish Egg Deposition In The Lower Yellowstone River, Montana And North Dakota, Shannon E. Miller, Dennis L. Scarnecchia, Steven R. Fain
The Prairie Naturalist
We used passive egg collectors during May, June, and July of2003 and 2004 in the lower 50 river kiiometers (rkm) of the Yellowstone River, eastern Montana and western North Dakota, to detect egg deposition by spawning paddle fish (Polyodon spathula). Sampling yielded 292 eggs (46 in 2003 and 246 in 2004). All egg collections in 2003 occurred on the descending limb of the spring hydrograph but 99% of egg collections in 2004 occurred before the spring hydrograph began to descend. Catch-per-unit-effort (CPUE) in 2004 was about four times that of 2003. A combination of river conditions, in addition …
Lake Mead National Recreation Area Vegetation Monitoring And Analysis: Quarterly Progress Report, April 1, 2008 To June 30, 2008, Margaret N. Rees
Lake Mead National Recreation Area Vegetation Monitoring And Analysis: Quarterly Progress Report, April 1, 2008 To June 30, 2008, Margaret N. Rees
Vegetation Monitoring
Executive Summary
- The Weed Sentry program surveyed over 182 miles of transportation corridors on federal land in Clark County for incipient populations of exotic plants.
- Five manuscripts attained published or in-press status this quarter. The published manuscripts are (1) assessing vegetation in grassy remnants of the Las Vegas Valley (Desert Plants), (2) assessing exotic species distributions in Clark County (Environmental Monitoring and Assessment), (3) a synthesis of burro effects on Mojave Desert vegetation (Environmental Management), and (4) examining canopy-tree influences along a soil parent material gradient in (Journal of the Torrey Botanical Society).
- Staff delivered eight presentations this quarter at …
Mojave Applied Ecology Notes Summer 2008, Doug Merkler, Scott R. Abella, Dianne N. Bangle, Donovan J. Craig, Jessica E. Spencer, Alex Suazo
Mojave Applied Ecology Notes Summer 2008, Doug Merkler, Scott R. Abella, Dianne N. Bangle, Donovan J. Craig, Jessica E. Spencer, Alex Suazo
Mojave Applied Ecology Notes
Soil climate project, rare plant monitoring, JFS update, granivory and Sahara mustard
An Overview Of The Vegetation Research Program: Knowledge Services For Land Management, Scott R. Abella
An Overview Of The Vegetation Research Program: Knowledge Services For Land Management, Scott R. Abella
Fire Science Presentations
- Provide knowledge services about the ecology and management of southwestern dryland ecosystems
- Specialize in working with resource managers to conduct applied research
- Conduct and provide research, monitoring, scientific literature synthesis, and technical assistance
Plant Community Response To Fire: A Chronosequence Study, Scott R. Abella, E. Cayenne Engel
Plant Community Response To Fire: A Chronosequence Study, Scott R. Abella, E. Cayenne Engel
Public Policy and Leadership Faculty Research
Fires are becoming more prevalent events across the landscape in the southwestern US. Over the next several decades the already arid southwest is predicted to become warmer and drier, with longer summers, and an increase of “extreme” weather events such as lightening inducing thunderstorms. While the “hotter and drier” forecast may indicate less abundant plant life, and thus less available biomass for fuel, exotic invasive plant species are becoming more dominant across the landscape with increases in human travel and commerce. Exotic species (particularly many of the invasive grasses) are adding fuel for the fires to burn when the annuals …
Mojave Applied Ecology Notes Spring 2008, Lesley Defalco, E. Cayenne Engel, Scott R. Abella, Jessica E. Spencer, Jill E. Craig
Mojave Applied Ecology Notes Spring 2008, Lesley Defalco, E. Cayenne Engel, Scott R. Abella, Jessica E. Spencer, Jill E. Craig
Mojave Applied Ecology Notes
Post-fire restoration, fire chronosequence study, Joint Fire Science update, Weed Sentry program and DNWR surveys