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Articles 301 - 330 of 469
Full-Text Articles in Weed Science
Vegetative Characteristics Of Pronghorn Bed Sites In Wind Cave National Park, South Dakota, Christopher N. Jacques, Jonathan A. Jenks, Jaret D. Sievers, Daniel E. Roddy
Vegetative Characteristics Of Pronghorn Bed Sites In Wind Cave National Park, South Dakota, Christopher N. Jacques, Jonathan A. Jenks, Jaret D. Sievers, Daniel E. Roddy
The Prairie Naturalist
Much of the previous literature on pronghorn (Antilocapra americana) fawns has focused on fawn mortality (Beale 1978, Barrett 1984, Gregg et al. 2001) and social behavior (Kitchen 1974, Autenrieth and Fichter 1975, Bromley 1977). Selection of bed sites by pronghorn fawns is a major factor affecting fawn survival (Bromley 1978, Barrett 1981, O'Gara et al. 1986, VanSchmus 1990) because adequate cover is a crucial component of fawn bed site selection (Autenrieth 1984). Alldredge et al. (1991) reported that fawns selected dense shrub cover but avoided the most-dense cover in sagebrush-steppe communities in southcentral Wyoming while Tucker and Gamer …
Intraspecific And Interspecific Territoriality In Microtus Ochrogaster And M. Pennsylvanicus, David J. Tazik, Lowell L. Getz
Intraspecific And Interspecific Territoriality In Microtus Ochrogaster And M. Pennsylvanicus, David J. Tazik, Lowell L. Getz
The Prairie Naturalist
Adult female Microtus ochrogaster and M. pennsylvanicus displayed interspecific territorial behavior in a bluegrass site in Illinois. We concluded that within a site, interspecific territorial behavior might be a factor in non-synchronous population fluctuations characteristic of the two species.
Woodland Bird Use Of In-Channel Islands In The Central Platte River, Nebraska, William C. Scharf
Woodland Bird Use Of In-Channel Islands In The Central Platte River, Nebraska, William C. Scharf
The Prairie Naturalist
Recapture data showed woodland obligate birds from riparian habitats made substantial use of thinly vegetated, adjacent small islands in the Platte River. During the bird nesting and spring migration seasons of 200 I through 2004, there were 4,360 individuals of 90 species captured on both mainland and in: hannel island sites. Island locafion captures totaled 595 individuals of 47 species )etween 2002 and 2004. Islands formerly were considered inconsequential for coraging and nesting of passerines. My study substantiated passerine use of Islands and provided a rationale for additional consideration of islands for migration and nesting management. Assemblages of bird species …
Mallard Brood Movements In The Canadian Prairie Parklands, Garnet H. Raven, Todd W. Arnold, David W. Howerter, Llwellyn M. Armstrong
Mallard Brood Movements In The Canadian Prairie Parklands, Garnet H. Raven, Todd W. Arnold, David W. Howerter, Llwellyn M. Armstrong
The Prairie Naturalist
We radiotracked 308 mallard (Anas platyrhynchos) broods from hatching until 30 days of age Oij 15 study areas located throughout the Canadian Prairie Parklands to examine patterns of variation in movement frequency and distance. Broods moved an average of 350 m from nests to first wetlands (SO = 390), with 94% of broods moving less than I km. After leaving the nest, broods had a 23% probability of moving to a new wetland each day, but movement probability was a complex function of study area, hatch date, and ducking age, with younger and earlier-hatched broods exhibiting greater movement …
Partial Characterization Of Two Moderately Halophilic Bacteria From A Kansas Salt Marsh, Aileen M. Johnson, Lance R. Thurlow, Sam R. Zwenger, Eric T. Gillock
Partial Characterization Of Two Moderately Halophilic Bacteria From A Kansas Salt Marsh, Aileen M. Johnson, Lance R. Thurlow, Sam R. Zwenger, Eric T. Gillock
The Prairie Naturalist
Two bacterial species were isolated from a salt marsh located on privately owned land in Russell County, Kansas. Water samples from the saIt marsh were streaked for isolation on tryptic soy agar supplemented with 12 % NaCI. Visual scanning of the plates revealed two prominent colony types. The two colony types were subcultured repeatedly until axenic cultures were obtained. 80th of these organisms were shown to be moderately halophilic. The organisms were characterized partially by fatty acid methyl ester analysis, 16S rRNA sequencing, and scanning electron microscopy. These studies revealed that the bacteria previously were unreported members of genera Marinococcus …
The Prairie Naturalist, Volume 39, No.1, March 2007
The Prairie Naturalist, Volume 39, No.1, March 2007
The Prairie Naturalist
CONTENTS
MALLARD BROOD MOVEMENTS IN THE CANADIAN PRAIRIE PARKLANDS G. H. Raven, T. W. Arnold, D. W. Howerter, and L. M. Armstrong
WOODLAND BIRD USE OF IN-CHANNEL ISLANDS IN THE CENTRAL PLATTE RIVER, NEBRASKA, W. C. Scharf
PARTIAL CHARACTERIZATION OF TWO MODERATELY HALOPHILIC BACTERIA FROM A KANSAS SALT MARSH, A. M. Johnson, L. R. Thurlow, S. R. Zwenger, and E. T. Gillock
INTRASPECIFIC AND INTERSPECIFIC TERRITORIALITY IN MICROTUS OCHROGASTER AND M. PENNSYLVANICUS, D. J. Tazik and L. L. Getz
VEGETATIVE CHARACTERISTICS OF PRONGHORN BED SITES IN WIND CAVE NATIONAL PARK, SOUTH DAKOTA, C. N. Jacques, J. A. Jenks, J. D. …
The Prairie Naturalist, Volume 38, Number 3, September 2006, Elmer J. Finck, Hilary Gillock
The Prairie Naturalist, Volume 38, Number 3, September 2006, Elmer J. Finck, Hilary Gillock
The Prairie Naturalist
The Prairie Naturalist (September 2006) 38(3)
Editor: Elmer J. Finck
Assistant editor: Hilary Gillock
Great Plains Natural Science Society
Artificial Burrows and the Deer Mouse: Do Number of Entrances Influence Use? GLENNIS A. KAUFMAN1 and DONALD W. KAUFMAN, pages 145-154
Evaluating Genetic Viability of Pronghorn in Wind Cave National Park JONATHAN A. JENKSi , CHRISTOPHER N. JACQUES, JARET D. SIEVERS, ROBERT W. KLAVER, R. TERRY BOWYER, and DANIEL E. RODDY, pages 155-165
Age Structure and Reproductive Activity of the Blue Sucker in the Milk River, Missouri River Drainage, Montana JULIE BEDNARSKl1 and DENNIS L. SCARNECCHIA, pages 167-182
Habitat Characteristics of …
Reviews: Natural History Of Javelinas; And Three Dvds On Bats, Louis A. Harveson, Jean Legge
Reviews: Natural History Of Javelinas; And Three Dvds On Bats, Louis A. Harveson, Jean Legge
The Prairie Naturalist
Reviews of Javelinas: Collared Peccaries of the Southwest (2006) by Jane Manaster, Texas Tech University Press, Lubbock, Texas, 85 pages (review by Louis A. Harveson) and of The Secret World of Bats (DVD), Building Homes for Bats (DVD), and Kids Discover Bats (DVD) (2005) published by Bat Conservation International (review by Jean Legge).
First Record Of The Least Shrew In Wyoming; And Clostridium Perfingens Type A Enterotoxemia In A Captive Adult White-Tailed Deer, Shauna R. Marquardt, Brian C. Bartels, Cheryl A. Schmidt, Joshua A. Delger, Kevin L. Monteith, Jonathan A. Jenks
First Record Of The Least Shrew In Wyoming; And Clostridium Perfingens Type A Enterotoxemia In A Captive Adult White-Tailed Deer, Shauna R. Marquardt, Brian C. Bartels, Cheryl A. Schmidt, Joshua A. Delger, Kevin L. Monteith, Jonathan A. Jenks
The Prairie Naturalist
First Record of the Leaast Shrew in Wyoming by Shauna R. Marquardt, Brian C. Bartels, and Cheryl A. Schmidt; and Clostridium perfingens Type A Enterotoxemia in a Captive Adult White-tailed Deer by Joshua A. Delger , Kevin L. Monteith, and Jonathan A. Jenks.
Population Biology Of Pumpkinseed In Enemy Swim Lake, South Dakota, Eric J. Weimer, Michael L. Brown
Population Biology Of Pumpkinseed In Enemy Swim Lake, South Dakota, Eric J. Weimer, Michael L. Brown
The Prairie Naturalist
Little information is available regarding the biology and population characteristics of pumpkinseed (Lepomis gibbosus), especially in South Dakota, a state at the western edge of the species native range. South Dakota Department of Game, Fish and Parks summer trap net survey data, collected 1998 to 2003, suggests the Enemy Swim Lake population has low abundance (0.4-2.9 per trap net night) and moderately high size structure (proportional stock density [PSD] ranges between 71 and 91). To further examine the biological characteristics of the Enemy Swim Lake population, pumpkinseed was collected from Indian Bay with trap nets during May 2003. …
Feeding Habitats Of Spring-Migrating Blackbirds In East-Central South Dakota, Richard S. Sawin, George M. Linz, William J. Bleier, H. Jeffrey Homan
Feeding Habitats Of Spring-Migrating Blackbirds In East-Central South Dakota, Richard S. Sawin, George M. Linz, William J. Bleier, H. Jeffrey Homan
The Prairie Naturalist
Between March 27 and April 21, 1998, we monitored blackbird (Icteridae) activity and habitat selection at a migratory staging area in east-central South Dakota. We used fixed-area observation points located within 20 l-km2 circular plots centered on four wetland basins that were used as night roosts. Each roost was surveyed four times, with the surveys spread evenly throughout the blackbird migration. We recorded the number of blackbird flocks, flock size and composition, habitat used, and behavior (e.g., loafing and feeding). Fifty percent (n = 242) of the 482 flocks recorded in the quadrats was observed loafing in trees …
The Prairie Naturalist, Volume 38, Number 2, June 2006, Elmer J. Finck, Hilary Gillock
The Prairie Naturalist, Volume 38, Number 2, June 2006, Elmer J. Finck, Hilary Gillock
The Prairie Naturalist
The Prairie Naturalist (June 2006) Volume 38, Issue 2, full issue.
Feeding Habitats of Spring-Migrating Blackbirds in East-central South Dakota, by Richard S. Sawin, George M. Linz, William J. Bleier, and H. Jeffrey Homan, pages 73-84.
Brood Break-up and Juvenile Dispersal of Lesser Prairie-chicken in Kansas, by James C. Pitman , Brent E. Jamison, Christian A. Hagen, Robert J. Robel, and Roger D. Applegate, pages 74-99.
Population Biology of Pumpkinseed in Enemy Swim Lake, South Dakota, by Eric J. Weimer and Michael L. Brown, pages 101-111.
Reproductive Development in the Sicklefin Chub in the Missouri and Lower Yellowstone Rivers, by …
Reproductive Development In The Sicklefin Chub In The Missouri And Lower Yellowstone Rivers, Douglas J. Dieterman, Eric Roberts, Patrick J. Braaten, David L. Galat
Reproductive Development In The Sicklefin Chub In The Missouri And Lower Yellowstone Rivers, Douglas J. Dieterman, Eric Roberts, Patrick J. Braaten, David L. Galat
The Prairie Naturalist
We describe aspects of sicklefin chub (Macrhybopsis meeki) reproductive development from three study areas encompassing greater than 2,700 km of the Missouri and Lower Yellowstone rivers. The sicklefin chub was collected between late July and early October in 1996 and 1997. A total of 193 sicklefin chub was collected and examined for reproductive characteristics. Twenty-nine sicklefin chub were found to be reproductively mature females. Some sicklefin chub matured at age 2, but most matured at age 3 and all matured by age 4. Females first became mature at 70 to 79 mm total length (TL) in the Upper …
First Record Of The Spurge Hawkmoth As A Pollen Vector For The Western Prairie Fringed Orchid [Notes], Carla R. Jordan, Gerald M. Fauske, Mrion O. Harris, Darla Lenz
First Record Of The Spurge Hawkmoth As A Pollen Vector For The Western Prairie Fringed Orchid [Notes], Carla R. Jordan, Gerald M. Fauske, Mrion O. Harris, Darla Lenz
The Prairie Naturalist
Identification of pollen vectors is one step in refining management plans for a threatened plant such as the western prairie fringed orchid (Platanthera praeclara Sheviak and Bowles). Pollen vector bionomics, phenology, and ethology must be understood to assess this moth and other potential pollinators relative to orchid reproductive success. Also, the ability of spurge hawkmoth (Lepidoptera: Sphingidae), a recently introduced species, to act as a pollen vector for an obligate prairie plant, the western prairie fringed orchid, in theoretical terms, provides evidence which contradicts long held tenets of one-to-one correspondence between orchids and their pollinators. Further research might shed …
The Prairie Naturalist, Volume 38, Number 1, March 2006, Elmer J. Finck, Hilary Gillock
The Prairie Naturalist, Volume 38, Number 1, March 2006, Elmer J. Finck, Hilary Gillock
The Prairie Naturalist
Fire History, Passerine Abundance, and Habitat on a North Dakota Drift Plain Prairie by Timothy J. Ludwick and Robert T. Murphy, pages 1-11
Bats in a Human-made Forest of Central Nebraska by Keith Geluso, pages 13-23
Effects of Predator Removal on Upland Nesting Ducks in North Dakota Grassland Fragments by Kristen D. Chodachek and Michael J. Chamberlain, pages 25-37
Estimates of Breeding Bird Populations in the Sheyenne National Grassland, North Dakota by Mary Ann Cunningham, Douglas H. Johnson, and Daniel N. Svingen, pages 39-56
Notes: First Record of the Spurge Hawkmoth as a Pollen Vector for the western Prairie Fringed …
The Prairie Naturalist, Volume 37, No.4 December 2005
The Prairie Naturalist, Volume 37, No.4 December 2005
The Prairie Naturalist
AVIAN COMMUNITY RESPONSE TO CONSTRUCTION OF A NATURALISTIC GOLF COURSE IN TALL GRASS PRAIRIE IN KANSAS ▪ R. J. Robel, S. L. Bye, K. E. Kemp, and S. J. Thien
SECOND REPORT OF THE NORTH DAKOTA BIRD RECORDS COMMITTEE: 2002-2003 ▪ D. Svingen, and R. E. Martin
RECENT RECORDS OF FORMERLY EXTIRPATED CARNIVORES IN NEBRASKA ▪ J. D. Hoffman, and H. H. Genoways
PLAINS HARVEST MOUSE IN NORTH DAKOTA ▪ R. W. Seabloom, and T. L. Shaffer
Book Reviews
A Primer on Prairie Ecology ▪ M. A. Cunningham
Range Wars: Have Prairie Dogs Lost the Battle for the West? ▪ …
The Prairie Naturalist, Volume 37, Number 3, September 2005
The Prairie Naturalist, Volume 37, Number 3, September 2005
The Prairie Naturalist
Landscape Compostiona and Greater Prairie Chicken Lek Attendance: Implications for Management by N. D. Niemuth
Helminthic Parasites in Ring-necked Pheasant from Southwestern Kansas by R. J. Robel, T. L. Walker, Jr., R. K. Ridley, K. E. Kemp, and R. D. Applegate
Seasonal Migration and Home Ranges of Female Elk in the Black Hills of South Dakota and Wyoming by L. Benkobi, M. A. Rumble, C. H. Stubblefield, R. S. Garno, and J. J. Millspaugh
Ring-necked Pheasant Survive with Broken Wings by R. D. Applegate and L. Scott
First Nebraska Nest Record for Henslow's Sparrow by D. H. Kim
RangeE Extension …
Influence Of Biocontrol Insects On Canada Thistle: Seed Production, Germinability, And Viability, Gary E. Larson, Tim A. Wittig, Kenneth F. Higgins, Brent Turnipseed, Dawn M. Gardner
Influence Of Biocontrol Insects On Canada Thistle: Seed Production, Germinability, And Viability, Gary E. Larson, Tim A. Wittig, Kenneth F. Higgins, Brent Turnipseed, Dawn M. Gardner
The Prairie Naturalist
We conducted surveys of thistle-feeding insects on Canada thistle [Cirsium arvense (L.) Scop.] during the 2000 and 2001 growing seasons at Lacreek National Wildlife Refuge (LNWR), South Dakota, and analyzed their impact on thistle seed production, germination, and viability. Insects included Canada thistle stem weevil [Hadroplontus litura, formerly Ceurtorhynchus lilura, (Coleoptera: Curculionidae)], introduced at LNWR as a biocontrol agent, plus two seed head parasites, the thistle head weevil [Rhinocyllus conicus (Coleoptera: Curculionidae)] and the seed head fly [Terellia ruficauda (Diptera: Tephritidae)]. Infestation by these insects caused no significant reduction in per-head seed yield, with means ranging from 82.5 seeds per …
Grazing Intensity Effects On Northern Plains Mixed-Grass Prairie, Wendi M. Rogers, Donald R. Kirby, Paul E. Nyren, Bob D. Patton, Edward S. Dekeyser
Grazing Intensity Effects On Northern Plains Mixed-Grass Prairie, Wendi M. Rogers, Donald R. Kirby, Paul E. Nyren, Bob D. Patton, Edward S. Dekeyser
The Prairie Naturalist
We evaluated the effects of long-term (1988 to 2000) grazing on northern mixed-grass prairie at tI.e Central Grasslands Research Extension Center in south-central North Dakota. We did not detect a difference in herbaceous basal cover between grazing intensities following 12 consecutive years of season-long moderate (50% removal of annual above-ground standing crop) and heavy (80% removal of annual above-ground standing crop) grazing. However, both moderate and heavy grazing intensities reduced above-ground herbaceous standing crop, total root biomass, and soil organic carbon. Moderate grazing intensity maintained a greater amount of deep (10 to 20 cm) and total root biomass relative to …
The Prairie Naturalist: Volume 37, No. 2 June 2005
The Prairie Naturalist: Volume 37, No. 2 June 2005
The Prairie Naturalist
BIOLOGICAL NOTES ON GROUND-NESTING DIGGER WASPS FROM WESTERN NEBRASKA R. W. Matthews, and J. R. Matthews 61
GRAZING INTENSITY EFFECTS ON NORTHERN PLAINS MIXED-GRASS PRAIRIE W. M. Rogers, D. R. Kirby, P. E. Nyren, B. D. Patton, and E. S. DeKeyser 73
INFLUENCE OF BIOCONTROL INSECTS ON CANADA THISTLE: SEED PRODUCTION.,GERMINABILITY, AND VIABILITY G. E. Larson, T. A. Wittig, K. F. Higgins, B. Turnipseed, and D. M Gardner 85
MAMMALS OF FORT LEAVENWORTH, KANSAS: A 6O-YEAR FOLLOW-UP TO BRUMWELL (1951) c. R. Davis, F. B. Stangl, Jr., and L. W. Robbins 101
CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA 2004 R. …
Mammals Of Fort Leavenworth, Kansas: A 60-Year Followup To Brumwell (1951), Clay R. Davis, Frederick B. Stangl Jr., Lynn W. Robbins
Mammals Of Fort Leavenworth, Kansas: A 60-Year Followup To Brumwell (1951), Clay R. Davis, Frederick B. Stangl Jr., Lynn W. Robbins
The Prairie Naturalist
More than 60 years have elapsed since Brumwell's (1951) comprehensive assessment during 193911940 of resident terrestrial vertebrates from Fort Leavenworth Military Rooervation in northeastern Kansas. Subsequent studies have been accomplished for the amphibians, reptiles, and birds. Our study is the first to assess intervening changes in the mammalian composition of this diverse local fauna. Notable observations include: the decline or extirpation of the black-tailed jackrabbit (Lepus californicus), Franklin's ground squirrel (Spermophilus franklinii), muskrat (Ondatra zibethicus), long-tailed weasel (Mustela frenata) and eastern spotted skunk (Spilogale putorius); the return or recovery of locally extirpated gray fox (Urocyon cinereoargenteus), puma (Puma concolor), and …
Christmas Bird Counts For North Dakota 2004, Robert N. Randall
Christmas Bird Counts For North Dakota 2004, Robert N. Randall
The Prairie Naturalist
Christmas Bird Counts were made in 21 areas in North Dakota again in the year 2004. During the year a new count site was established in Pembina County and registered with the Audubon Society but an actual count was not made in the area this year. The location of the all areas in which counts were actually made is shown in Fig. 1. A relatively mild fall season leading up to the count period left much more open water than normal. Weather conditions during the count period varied widely with some areas reporting temperatures in the 40's and 50's of, …
Biological Notes On Ground-Nesting Digger Wasps From Western Nebraska, Robert W. Matthews, Janice R. Matthews
Biological Notes On Ground-Nesting Digger Wasps From Western Nebraska, Robert W. Matthews, Janice R. Matthews
The Prairie Naturalist
Nine species of sphecid wasps nesting in sparsely vegetated sandy soils near Ogallala, Keith County, Nebraska were studied during June 2003. The first records of the nest and prey of Cerceris clypeata gnarina Banks and Tachysphex williamsi R. Bohart are presented. Two species of weevils, Baris striata Say and B. subsimilis Casey, were prey of C. clypeata gnarina, with 12 to 22 individuals stocked per cell. Because B. subsimilis is a biological control agent for thistle, this finding is a caution to researchers not to ignore the potential impact of predatory wasps on the community. The single nest of T …
An Additional Record Of The Ornate Box Turtle From Western South Dakota, Steven G. Platt, Jennifer I. Stover, Edward J. Stover Iii
An Additional Record Of The Ornate Box Turtle From Western South Dakota, Steven G. Platt, Jennifer I. Stover, Edward J. Stover Iii
The Prairie Naturalist
On June 11, 2003, one of us (EJS) found an ornate box turtle crossing BIA Highway 2, approximately 7.2 km north of Sharps Comer on the Pine Ridge Indian Reservation in Shannon County, South Dakota. The air temperature at the time of collection was approximately 30°C and the substrate was moist from light rain the previous day. The turtle was an adult female with a straight-line carapace length of 118 mm. Other straight-line measurements were: maximum carapace width = 100 mm; plastron length = 122 mm; maximum plastron width = 82 mm; and maximum shell depth = 64 mm. We …
The Quintessential Companion For North American Birders: Review Of The Birdwatcher's Companion To North American Birdlife By Christopher W. Leahy, Lawrence Igl
The Prairie Naturalist
The Birdwatcher's Companion was revised in 2004 under a new title, The Birdwatcher's Companion to North American Birdlire, and by a new publisher, Princeton University Press. This substantial work builds on Leahy's previous edition published in 1982. Hailed by the publisher as the quintessential, alphabetically arranged guide to North American birdlife, the new edition of The Birdwatcher's Companion is over 100 pages longer than the first edition, but, overall, the style and format have not changed much between the two editions. The Companion begins with a brief chapter in which the author describes how to use the book, how it …
Factors Influencing Persistence Of White-Footed Mice, Brock R. Mcmillan, Glennis A. Kaufman, Donald W. Kaufman
Factors Influencing Persistence Of White-Footed Mice, Brock R. Mcmillan, Glennis A. Kaufman, Donald W. Kaufman
The Prairie Naturalist
We examined factors that potentially influenced persistence of the white-footed mouse (Peromyscus leucopus) during 1981 to 1988 at Konza Prairie Biological Station, Kansas. We predicted that both abiotic (e.g., precipitation and temperature) and biotic (e.g., availability of food and density of conspecifics) factors would influence persisten~e of individuals at the study site. Persistence of individual white-footed mice on the study site differed among years and seasons. White-footed mice that were first captured in summer or in autumn persisted longer than those first captured in spring. Young females (less than 20 g) had greater persistence than young males, whereas …
Lack Of Brown-Headed Cowbird Nest Parasitism In A Short Grass Region, Stephen L. Winter, Jack F. Cully Jr.
Lack Of Brown-Headed Cowbird Nest Parasitism In A Short Grass Region, Stephen L. Winter, Jack F. Cully Jr.
The Prairie Naturalist
While conducting field work in Morton County, southwestern Kansas and Baca County, southeastern Colorado, during the period 27 May to 2 July 1997, we found 36 nests of seven bird species. Nests were not searched for systematically, but were found coincidentally as data were collected along transects during research investigating the breeding bird and plant communities of black-tailed prairie dog (Cynomys ludovicianus) colonies and noncolonized shortgrass prairie (Winter 1999).
Low densities of the brown-headed cowbird in our study region, which is characterized by a semi-arid climate, might be a consequence of host populations that exhibit extreme temporal and …
Comparison Of Microclimate At Grassland Bird Nests With Different Substrates, Kimberly M. Suedkamp Wells, Samuel D. Fuhlendore
Comparison Of Microclimate At Grassland Bird Nests With Different Substrates, Kimberly M. Suedkamp Wells, Samuel D. Fuhlendore
The Prairie Naturalist
We compared the effects of two different nest placement strategies (shrubs vs. bunchgrasses) on microclimate conditions for grasshopper sparrow (Ammodramus savannarum) and lark sparrow (Chondestes grammacus) in Oklahoma. We predicted that the intensity and duration of extreme temperatures (greater than 39° C) and their variability would be reduced at shrub nests compared to bunchgrass nests. A verage maximum temperatures were similar at nests of grasshopper sparrow and lark sparrow, but confidence intervals were more variable and included biologically detrimental temperatures at grasshopper sparrow nests compared to lark sparrow nests. The proportion of time greater than 39° …
Daphnia Lumholtzi, An Exotic Zooplankton, Invading A Nebraska Reservoir, Brian C. Peterson, Nicolas J. Fryda, Keith D. Koupal, Wyatt Hoback
Daphnia Lumholtzi, An Exotic Zooplankton, Invading A Nebraska Reservoir, Brian C. Peterson, Nicolas J. Fryda, Keith D. Koupal, Wyatt Hoback
The Prairie Naturalist
A limnological assessment project by the University of Nebraska at Kearney and the Nebraska Game and Parks Commission collected weekly vertical zooplankton tows during May through September 2002 at Harlan County Reservoir in Nebraska. Beginning on 5 August 2002, the exotic Daphnia lumholtzi (Cladocera: Daphniidae) appeared at a density of 0.04 1.1 in one of fifteen standardized sampling stations. By 6 September 2002, D. lumholtzi was found in all fifteen stations at an average density of 2.17 ± 3.10 1.1 with a site maximum density of 11.43 1.1 • Length measurements of D. lumholtzi ranged from 0.80 mm to 5.66 …
Continued Range Expansion Ny The Cave Myotis, Shauna R. Marquardt, Jerry R. Choate, Stanley D. Roth Jr.
Continued Range Expansion Ny The Cave Myotis, Shauna R. Marquardt, Jerry R. Choate, Stanley D. Roth Jr.
The Prairie Naturalist
The cave myotis (Myotis velifer) is a cavernicolous bat that ranges northward from Honduras to the southern Great Plains and southwestern United States. Its known range in the United States includes the states of Kansas, Oklahoma, Texas, Arizona, New Mexico, and small, southern portions of Nevada and California (Fitch et al. 1981, Hayward 1970). The cave Myotis inhabits caves, mines, and buildings, depending on time of year and specific roost requirements (Fitch et al. 1981, Hayward 1970, Kunz 1973, Sparks and Choate 2000). Before European settlement of areas within the range of the cave Myotis, it likely …