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Full-Text Articles in Biodiversity
The Prairie Naturalist Volume 11, Number 4. December 1979
The Prairie Naturalist Volume 11, Number 4. December 1979
The Prairie Naturalist
THE STATUS OF HERONS, EGRETS AND IBISES IN NORTH DAKOTA ▪ J. T. Lokomoen
RANGE EXPANSION OF BAIRD'S SPARROW IN SOUTH DAKOTA ▪ H. A. Kantrud and C. A. Faanes
NESTING RECORDS OF THE WOOD THRUSH IN NORTH DAKOTA ▪ S. O. Lambeth and D. O. Lambeth
SOME ECOLOGICAL ASPECTS OF MARBLED GODWITS AND WILLETS IN NORTH DAKOTA ▪ K. F. Higgins, L. M. Kirsch, M. R. Ryan and R. B. Renken
NOTES ON THE INCUBATION BEHAVIOR OF BLACK-BELLIED WHISTLING DUCKS ▪ E G. Bolen and E. N. Smith
NOTES
Red Fox Captures Sharp-tailed Grouse at the Lek ▪ S. …
The Prairie Naturalist Volume 11, Number 3. September 1979
The Prairie Naturalist Volume 11, Number 3. September 1979
The Prairie Naturalist
DISTRIBUTION AND NATURAL HISTORY OF AMPHIBIANS AND REPTILES IN WESTERN NEBRASKA WITH ECOLOGICAL NOTES ON THE HERPETILES OF ARAPAHO PRAIRIE ▪ R. E. Ballinger, J. D. Lynch and P. H. Cole
AVIAN MORTALITY FROM A SEVERE HAIL STORM ▪ J. L. Piehl
EFFECTS OF A SUMMER STORM ON BIRD POPULATIONS ▪ D. H. Johnson
SEXING AND AGING CRITERIA FOR THE WHITE PELICAN ▪ G. R. Lingle and N. F. Sloan
CANVASBACK DUCK RECOVERS FROM COMPOUND LUXATION TO WING ▪ H. A. Doty
SECOND NORTH DAKOTA RECORD OF LOUISIANA WATERTHRUSH ▪ C. A. Faanes
FIRST NESTING RECORD OF A LOUISIANA HERON …
Morphology And Distribution Of Petiolar Nectaries In Ipomoea (Convolvulaceae), Kathleen H. Keeler, Robert B. Kaul
Morphology And Distribution Of Petiolar Nectaries In Ipomoea (Convolvulaceae), Kathleen H. Keeler, Robert B. Kaul
School of Biological Sciences: Faculty Publications
The distribution of petiolar nectaries in 24 species of Ipomoea was investigated. Petiolar nectaries were found on 12 species (8 new reports, 4 confirmations of previous reports) and quoted from the literature as being found on 3 other species; they were absent from 9 species investigated. The structure of petiolar nectaries in the genus ranges from simple beds of superficial nectar-secreting trichomes (1 species), to slightly recessed "basin nectaries" (8 species), to "crypt nectaries," which are structurally the most complex extrafloral nectaries known (3 species). (Structures were not determined for 3 species.) Petiolar nectaries are present in all subgenera, but …
The Prairie Naturalist Volume 11 , Number 2. June 1979
The Prairie Naturalist Volume 11 , Number 2. June 1979
The Prairie Naturalist
SPECIES WITH EXTRA FLORAL NECTARIES IN A TEMPERATE FLORA (NEBRASKA) ▪ Kathleen H. Keeler
PLANTS OF MOUNT GOLIATH RESEARCH NATURAL AREA ▪ Jeanette Hartman and Rod Mitchell
STATUS OF THE STURGEON CHUB (HYBOPSIS GELIDA) AND SICKLEFIN CHUB (HYBOPSIS MEEKI) IN NORTH DAKOTA ▪ Robert C. Reigh and Dean S. Elsen
OBSERVATIONS ON COYOTE BIOLOGY IN NORTH-CENTRAL MISSOURI ▪ Fred B. Samson and Bill D. Hill
DESTRUCTION TO NESTING BIRDS ON A MARSH BAY BY A SINGLE STORM ▪ Martin K. McNicholl
BOOK REVIEWS
Presentations on Predators ▪ Staff
Migratory Game Birds ▪ Ronald A. Ryder
Wolf …
Distribution Of Plants With Extrafloral Nectaries And Ants At Two Elevations In Jamaica, Kathleen H. Keeler
Distribution Of Plants With Extrafloral Nectaries And Ants At Two Elevations In Jamaica, Kathleen H. Keeler
School of Biological Sciences: Faculty Publications
Frequencies of plants with extrafloral nectaries were determined for two elevations in Jamaica. Extrafloral nectaries were found on 0.28 of the plants at sea level (Happy Grove, Portland) and 0.00 of the plants at 1310 m (Whitfield Hall, St. Thomas). Ant abundance, as indicated by discovery of and recruitment to baits, was greater at the lower elevation site. However, despite the apparent absence of plants with extrafloral nectaries, there were abundant ants at 1310 m.
The Prairie Naturalist Vol. 11, No. 1. March, 1979
The Prairie Naturalist Vol. 11, No. 1. March, 1979
The Prairie Naturalist
ORIN ALVA STEVENS, A PRAIRIE NATURALIST ▪ G. Monson
FIRST RECORD OF LONG-TAILED JAEGER FOR NORTH DAKOTA ▪ T. Gatz and D. Treasure
NEW RECORDS OF THE DWARF SHREW (SOREX NANUS) IN SOUTH DAKOTA ▪ R. J. Cinq-Mars, R. S. Hoffmann and J. K. Jones, Jr.
THE ETHYLENE FROM BURNING LIGNITE AS A PROBABLE CAUSE OF COLUMNARITY IN NORTH DAKOTA JUNIPERS ▪ J. M. Murphy and D. J. Holden
CAMOUFLAGED COYOTE DEN ENTRANCES ▪ D. P. Althoff
CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA - 1978 ▪ R.N. Randall
NOTES
An Upland Nest of the Virginia Rail in North …
Species With Extrafloral Nectaries In A Temperate Flora (Nebraska), Kathleen H. Keeler
Species With Extrafloral Nectaries In A Temperate Flora (Nebraska), Kathleen H. Keeler
School of Biological Sciences: Faculty Publications
Extrafloral nectaries (EFNs) are glands on a plant, not involved in pollination, that produce solutions containing sugars (and other compounds). Long noted by morphologists, EFNs have recently been observed to be part of ant-plant mutualisms. The function of EFNs appears to be to attract aggressive insects, especially ants, which by disturbing or preying upon herbivores, reduce damage to the plant (Janzen, 1966a,b; Elias and Gelband, 1975; Keeler, 1975, 1977; Bentley, 1976, 1977a,b; Schemske, 1978; Tilman, 1978; Inouye and Taylor, 1979; Pickett ad Clark, 1979). Furthermore, they constitute an unusual plant defense against herbivores: at EFNs plants employ ants as a …