Life Sciences Commons^™

The Prairie Naturalist Volume 24, No.4 December 1992

The Prairie Naturalist

NEW VASCULAR PLANT RECORDS FOR NORTIl DAKOTA ▪ B. L. Heidel, A. J. Duxbury, W.T. Barker, and J. R. Challey

GROWTH OF BLUEGILLS AND YELLOW PERCH IN SOUTH DAKOTA WATERS ▪ D.w. Willis, J.P. Lott, C.S. Guy, and D.O. Lucchesi

SEASONAL VARIATION IN SAMPLING DATA FOR WALLEYE AND SAUGER COLLECTED WITH GILL NETS FROM LAKE SAKAKAWEA, NORTH DAKOTA ▪ S.W. Mero andD.W. Willis

OBSERVATIONS ON NESTING OF THE AMERICAN BITTERN IN NORTIlWEST MINNESOTA ▪ W D. Svedarsky

FOOD HABITS OF MOURNING DOVES IN EAST CENTRAL SOUTH DAKOTA ▪ J.T. Van't Hul and J.A. Jenks

DISTRIBUTION OF TIlE PYGMY SHREW IN …

The Prairie Naturalist Volume 24, No.3 September 1992

The Prairie Naturalist

VESICULAR-ARBUSCULAR MYCORRHIZAE IN BLOWOUT PENSTEMON ▪ T. R. Flessner and J. Stubbendieck

STATUS OF HAPLOPAPPUS FREMONTII A. GRAY SSP. MONOCEPHALUS (A. NELSON) HALL [ASTERACEAE] IN COLORADO ▪ K.A. Schulz and R.B. Shaw

HABITAT CHANGES ABOVE AND BELOW WATER PROJECTS ON THE NORTH PLATTE AND SOUTH PLATTE RIVERS IN NEBRASKA ▪ P. M. McDonald and J.G. Sidle

INSECT FLORAL VISITORS TO FOUR SPECIES OF TALL-GRASS PRAIRIE COMPOSITE (ASTERACEAE: HELIANTHEAE) ▪ J. A. Dickinson and M. J. McKone

SUMMER BIRD USE OF KANSAS WINDBREAKS ▪ T.T. Cable, R.L. Schroeder, V. Brack, Jr., and P.S. Cook

RING-NECKED PHEASANTS AND FOOD PLOT SIZE (GALLIFORMES: …

The Prairie Naturalist Volume 24. No.2 June 1992

The Prairie Naturalist

FIRST FLOWERING DATES AND FLOWERING PERIODS OF PRAIRIE PLANTS AT WOODWORTH. NORTH DAKOTA ▪ J. M. Callow, J A. Kanlrud, and K.F. Higgins

PROBABLE DISTRIBUTION OF THE WOODCHUCK IN NORTH CENTRAL KANSAS ▪ J.R. Choate and T. W. Haner

NEST AND NEST SITE CHARACTERISTICS OF SOME GROUND-NESTING NON-PASSERINE BIRDS OF NORTHERN GRASSLANDS ▪ H A. Kantrud and K.F. Higgins

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA ▪ R.N. Randall

COMPARISON OF SIZE STRUCfURE AND CATCH RATE FOR LARGEMOUTH BASS SAMPLES COLLECTED BY ELECTROFlSHING AND ANGLING ▪ DJ. Isaak, T.D. Hill, and D.W. Willis

MULE DEER HABITAT USE IN THE NORTH DAKOTA …

The Prairie Naturalist Volume 24, No.1 March 1992

The Prairie Naturalist

HABITAT CONSERVATION FOR NESTING LEAST TERNS AND PIPING PLOVERS ON THE PLATTE RIVER, NEBRASKA ▪ J. W. Ziewitz, J. G. Sidle, and J. J. Dinan

DIURNAL FLIGHT TIME OF WINTERING CANADA GEESE: CONSIDERATION OF REFUGES AND FLIGHT ENERGETICS ▪ J. E. Austin and D. D. Humburg

MYCOTOXIN OCCURRENCE IN WASTE FIELD CORN AND INGESTA OF WILD GEESE IN THE NORTHERN GREAT PLAINS ▪ K. F. Higgins, R. M. Barta, R. G. Neiger, G. E. Rottinghaus, and R. I. Sterry

NOTES

Cost of Nest Reuse by Western Kingbirds ▪ T. M. Bergin

A New Record for Falcate Spurge in the Midwest …

Distribution, Habitats, And Taxonomy Of Ruppia Maritima L. And R. Occidentalis S. Watson In Nebraska, Robert B. Kaul

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Specimens of Ruppia from all eleven Nebraska counties in which it is known fall into two groups: R. occidentalis in alkaline Sandhills waters and R. maritima in saline waters of the Platte River Valley and Lancaster County. Ruppia occidentalis is distinguished by its more robust size; redspotted leaves and stems; terete, entire, obtuse leaves; 4-8(9) carpels; and by two elliptic white spots on its endocarp, among other characteristics. Ruppia maritima is more delicate and unspotted; the leaves are oblate in section, sub-apically denticulate, and acute-acuminate; the carpels are 3 or 4, and the endocarp spots are nearly circular. Both species …

Jasmonate, Genes, And Fragrant Signals, Paul E. Staswick

Department of Agronomy and Horticulture: Faculty Publications

Although first recognized for its growth-inhibiting activity about 20 years ago, JA² and its fragrant methyl ester MeJA (referred to here collectively as jasmonate) are receiving renewed interest as potentially important signaling molecules in plants. This is because jasmonate markedly increases the expression of specific plant genes, some of which are wound responsive. Similarities with fatty acid-derived stress signaling molecules in animals (1) make jasmonate of general biological interest.

Local Polyploid Variation In The Native Prairie Grass Andropogon Gerardii, Kathleen H. Keeler

School of Biological Sciences: Faculty Publications

The microscale distribution of polyploid variants of the dominant grass big bluestem (Andropogon gerardii) in virgin tallgrass prairie was mapped using flow cytometry. The correlation between DNA content and polyploidy allows the use of flow cytometry for nondestructive determination of polyploidy in intact plants. At Konza Prairie, local plots contained from 0 to 100% hexaploid cytotypes but most showed fine-scale mixing of the polyploid variants. The relationship of cytotype frequency to moisture availability or burning history was nonsignificant