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Articles 70801 - 70830 of 78820

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1997 File Geodatabase Containing Aerial Photos, Pete Reehling, Richard Mckenzie, City Of Tampa Department Of Sanitary Sewers Bay Study Group Jan 1997

1997 File Geodatabase Containing Aerial Photos, Pete Reehling, Richard Mckenzie, City Of Tampa Department Of Sanitary Sewers Bay Study Group

Images

The Bay Study Group was created by the City of Tampa in 1976 to monitor the effects of pollution abatement that occurred in Hillsborough Bay when the city’s wastewater treatment plant was upgraded from primary to advanced treatment in 1979. The Bay Study Group documented a remarkable restoration of water quality parameters and biological indicators in Hillsborough Bay from the mid 1980s until 2009, when it was disbanded. This zip Geodatabase file contains the aerial photos for the year 1997.

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Back-Calculated Length-At-Age Estimates From Two Scale Radii, Keith L. Hurley, Kevin L. Pope, David W. Willis Jan 1997

Back-Calculated Length-At-Age Estimates From Two Scale Radii, Keith L. Hurley, Kevin L. Pope, David W. Willis

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Variability in length-at-age estimates back-calculated from scales continues to be of concern to fishery scientists. Measurement transects used to back-calculate length at age have been recommended; however, specific scale and annuli radius measurements have not been evaluated for variability between different radii. Thus, the purpose of our study was to compare back-calculated length-at-age estimates determined from two different scale radii: one horizontally from the focus to the anterior-median edge and one diagonally from the focus to the anterior-lateral corner of the scale. No significant differences (P = 0.13 - 0.58 and P = 0.24 - 0.87) in backcalculated length-at-age estimates …

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A New Birth-Interval Approach To Estimating Demographic Parameters Of Humpback Whales, Jay Barlow, Phillip Clapham Jan 1997

A New Birth-Interval Approach To Estimating Demographic Parameters Of Humpback Whales, Jay Barlow, Phillip Clapham

United States Department of Commerce: Staff Publications

A demographic model is developed based on interbirth intervals and is applied to estimate the population growth rate of humpback whales (Megaptera novaeangliae) in the Gulf of Maine. Fecundity rates in this model are based on the probabilities of giving birth at time t after a previous birth and on the probabilities of giving birth first at age x. Maximum likelihood methods are used to estimate these probabilities using sighting data collected for individually identified whales. Female survival rates are estimated from these same sighting data using a modified Jolly–Seber method. The youngest age at first parturition is …

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Rodent Exclusion Techniques, Gerard Hoddenbach, Jerry Johnson, Carol Disalvo Jan 1997

Rodent Exclusion Techniques, Gerard Hoddenbach, Jerry Johnson, Carol Disalvo

Other Publications in Wildlife Management

Rodents have been a common problem in living and working environments, probably, ever since humans began living in permanent dwellings. Even today many people believe rodent infestations are "inevitable". However, the recent appearance of Hantavirus (Sin Nombre Virus, Hantavirus Pulmonary Syndrome, HPS) in the Western states has re-awakened the public to the serious health problems posed by rodents and has prompted new inquiries into more effective ways to manage infestations. This manual is designed as a training reference for making rodent control in buildings an attainable goal.

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Fall 1997, Nsu Oceanographic Center Jan 1997

Fall 1997, Nsu Oceanographic Center

Currents

No abstract provided.

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Winter 1997, Nsu Oceanographic Center Jan 1997

Winter 1997, Nsu Oceanographic Center

Currents

No abstract provided.

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Summer 1997, Nsu Oceanographic Center Jan 1997

Summer 1997, Nsu Oceanographic Center

Currents

No abstract provided.

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Handbook Of Liquid Crystal Research, Peter J. Collings, J. S. Patel Jan 1997

Handbook Of Liquid Crystal Research, Peter J. Collings, J. S. Patel

Physics & Astronomy Faculty Works

No abstract provided.

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Genetic Algorithms For The Extended Gcd Problem, Jonathan P. Sorenson Jan 1997

Genetic Algorithms For The Extended Gcd Problem, Jonathan P. Sorenson

Scholarship and Professional Work - LAS

We present several genetic algorithms for solving the extended greatest common divisor problem. After defining the problem and discussing previous work, we will state our results.

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Floristic Investigation Of Crooked Creek Community Of Juan Solomon Park, Indianapolis Indiana, Raelene M. Crandall, Rebecca W. Dolan Jan 1997

Floristic Investigation Of Crooked Creek Community Of Juan Solomon Park, Indianapolis Indiana, Raelene M. Crandall, Rebecca W. Dolan

Scholarship and Professional Work - LAS

The protection of plant resources in urban areas is a growing conservation concern. Inventory activities that document species presence and stewardship plans that protect and enhance these areas are needed. The results of a botanical inventory of the Crooked Creek Community Juan Solomon Park in Indianapolis, Indiana, are reported in this paper. The 46-acre park contains three distinct habitats, supporting a wide variety of plants. One hundred seventy-nine vascular plant species from 64 families were identified, including 53 (29.6%) non-native species that are naturalizing within the park. Despite its high percentage of alien species and urban setting, the park is …

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Metropolitan Growth And The Local Role In Surface Water Resource Protection In The Lake Erie Basin, Wendy A. Kellogg Jan 1997

Metropolitan Growth And The Local Role In Surface Water Resource Protection In The Lake Erie Basin, Wendy A. Kellogg

All Maxine Goodman Levin School of Urban Affairs Publications

Local governments can play an important role in protecting surface water resources through their compliance with federal and state regulations and through their own land use planning and management practices. Despite 30 years of water quality initiatives in the Lake Erie basin, nonpoint source runoff from urban and urbanizing lands remains a problem. Loss of riparian corridor integrity is increasing as urban areas in the Lake Erie basin experience areal growth. The use and management of land, predominantly a local responsibility, directly affects surface water resources. The role that local governments play in protecting surface water resources was studied in …

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Finfish Aquaculture In Western Australia, David Berry Jan 1997

Finfish Aquaculture In Western Australia, David Berry

Journal of the Department of Agriculture, Western Australia, Series 4

David Berry surveys fish farming from Broome to Williams, on off shore reefs and in farm dams, for barramundi, silver perch and black bream, trout and tuna.

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Comparison Of Source Rock Geochemistry Of Selected Rocks From The Schei Point Group And Ringnes Formation, Sverdrup Basin, Arctic Canada, P. K. Mukhopadhyay, F. Goodarzi, Michael A. Kruge, M. H. Alimi Jan 1997

Comparison Of Source Rock Geochemistry Of Selected Rocks From The Schei Point Group And Ringnes Formation, Sverdrup Basin, Arctic Canada, P. K. Mukhopadhyay, F. Goodarzi, Michael A. Kruge, M. H. Alimi

Department of Earth and Environmental Studies Faculty Scholarship and Creative Works

Organic-rich from the Schei Point group (middle to late Triassic in age) and the Ringnes formation (late Jurassic) from the Sverdrup basin of the Canadian arctic archipelago have been geochemically evaluated for source rock characterization. Most samples from the Schei Point group are organic-rich (> 2% TOC) and are considered as immature to mature oil-prone source rocks [kerogen types I, I-II (IIA) and II (IIA)]. These kerogen types contain abundant AOM1, AOM2 and alginite (Tasmanales, Nostocopsis, Leiosphaeridia, acritarch and dinoflagellate) with variable amounts of vitrinite, inertinite and exinite. Samples from the Ringnes formation contain dominant vitrinite and inertinite …

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Charles Hugh Callison, John A. Drobnicki Jan 1997

Charles Hugh Callison, John A. Drobnicki

Publications and Research

Charles Hugh Callison helped turn the National Audubon Society into a significant wildlife advocacy organization.

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Fungal Colonization Of Alfalfa Stubble Following Harvest, J. K. O'Mara, G. P. Munkvold Jan 1997

Fungal Colonization Of Alfalfa Stubble Following Harvest, J. K. O'Mara, G. P. Munkvold

Journal of the Iowa Academy of Science: JIAS

Two-year-old stands of alfalfa cultivars Saranac and Vernal, planted in Central Iowa, were sampled 0, 15, and 30 days after the first harvest in 1995 to identify fungi colonizing the stubble left after harvest and evaluate the role of harvest-induced wounds as infection sites for potential crown-rotting fungi. Analysis of variance was conducted to determine if sampling date and cultivar significantly affected incidence of the fungi. All stems were infected with at least one fungal species at every sampling dare. The fungal genera most frequently isolated were Alternaria, Colletotrichum, Fusarium, Phoma, and Rhizoctonia. Fusarium acuminatum was the most frequently isolated …

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Distribution And Abundance Of Prairie Plant Species In The Loess Hills, Thomas R. Rosburg Jan 1997

Distribution And Abundance Of Prairie Plant Species In The Loess Hills, Thomas R. Rosburg

Journal of the Iowa Academy of Science: JIAS

The species composition of grassland and ecotonal communities throughout the Loess Hills was studies between 1990 and 1993. Information pertaining to the latitudinal distribution of species in the Loess Hills, the abundance of species among community types (i.e., habitats), species persistence under woody encroachment, species associations, and resource partitioning among species is provided for the majority of grassland species occurring in the Loess Hills. The most abundant species on extant prairie in the Loess Hills include Bouteloua curtipendula (side-oats grama), Schizachyrium scoparium (little bluestem), Andropogon gerardii (big bluestem), Cornus drummondii (rough-leaved dogwood), Aster ericoides (heath aster), Carex heliophila (sun-loving sedge), …

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Book Review - Okoboji Wetlands. A Lesson In Natural History, Robert W. Black Jan 1997

Book Review - Okoboji Wetlands. A Lesson In Natural History, Robert W. Black

Journal of the Iowa Academy of Science: JIAS

Michael Lannoo's reverent, musing history of the Okoboji region, and especially its wetlands and the Iowa Lakeside Laboratory, is a uniquely structured, well-written and wonderfully illustrated introduction to a distinct region in Iowa, a rich natural history of wetland organisms and a relatively unexplored branch of environmental ethics. Lannoo draws upon many years of experience in this region, as a student, researcher and teacher, and the wonderful resources of the Iowa Lakeside Laboratory and the Iowa Great Lakes Maritime Museum to produce a volume that educates the reader of the history and natural history of the Okoboji region and provokes …

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Research Note: Records Of Thirteen Ground Beetles (Coleoptera: Carabidae) New To Iowa, Foster Forbes Purrington, Kirk Jon Larsen Jan 1997

Research Note: Records Of Thirteen Ground Beetles (Coleoptera: Carabidae) New To Iowa, Foster Forbes Purrington, Kirk Jon Larsen

Journal of the Iowa Academy of Science: JIAS

A long-term ecological research initiative in northeast Iowa tallgrass prairies to evaluate the effects of prescribed burning on prairie insects was begun in 1993. During the course of this work we discovered 13 ground beetle species (Coleoptera: Carabidae) (Table 1) not previously reported from Iowa (Bousquet and Larochelle 1993).

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Richard W. Pohl: Distinguished Botanist, Marjorie Conley Pohl Jan 1997

Richard W. Pohl: Distinguished Botanist, Marjorie Conley Pohl

Journal of the Iowa Academy of Science: JIAS

In her biographical portrait of Dr. Richard W. Pohl, Mrs. Pohl provides an engaging personal perspective of her late husband, his development as a botanist, his career, and his family life. We gain a sense of Dr. Pohl as a dedicated scientist as well as a humanist. Although Dr. Pohl possessed an abiding curiosity regarding all things natural, he is best known and remembered for his focus on grasses. As Mrs. Pohl documents, this interest in grasses began in the late 1930's and continued throughout his life-ultimately he was regarded as an authority on grass taxonomy both nationally and internationally. …

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The Computational Study Of "Model" Pollutants In Clay Montmorillonite, Sung-Ho Park Jan 1997

The Computational Study Of "Model" Pollutants In Clay Montmorillonite, Sung-Ho Park

Dissertations

No abstract provided.

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Indicator Bacteria Concentrations Of Two Northwest Arkansas Streams In Relation To Flow And Season, Dwayne R. Edwards, Mark S. Coyne, Tommy C. Daniel, P. F. Vendrell, J. F. Murdoch, P. A. Moore Jr. Jan 1997

Indicator Bacteria Concentrations Of Two Northwest Arkansas Streams In Relation To Flow And Season, Dwayne R. Edwards, Mark S. Coyne, Tommy C. Daniel, P. F. Vendrell, J. F. Murdoch, P. A. Moore Jr.

Biosystems and Agricultural Engineering Faculty Publications

Concentrations of indicator bacteria such as fecal coliform (FC) and fecal streptococcus (FS) are often used to assess the suitability of waters for their intended use(s) and to allocate resources for water quality improvement measures. There is evidence, however, that concentrations of FC and FS can be influenced by variables such as season and flow rate during sampling, which could lead to biased results. The objective of this study was to assess the impacts of season and flow rate on concentrations of FC and FS. Fecal indicator bacteria concentrations were measured for approximately three years at five sites on two …

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Carnivorous Spadefoot (Spea Bombifrons Cope) Tadpoles And Fairy Shrimp In Western Iowa, Eugenia S. Farrar, Jane D. Hey Jan 1997

Carnivorous Spadefoot (Spea Bombifrons Cope) Tadpoles And Fairy Shrimp In Western Iowa, Eugenia S. Farrar, Jane D. Hey

Journal of the Iowa Academy of Science: JIAS

Amphibian larval polymorphisms, rarely found in the Midwest, are more common in arid western regions. We have discovered that Plains spadefoot toad, Spea bombifrons Cope, tadpoles occur as carnivorous and omnivorous morphological forms in flooded soybean and corn fields on the Missouri River flood plain of western Iowa. Carnivores have longer snouts, larger beaks with an upper cusp and lower notch, shorter intestines with fewer loops than the omnivores, and they feed on fairy shrimp. A similar polymorphism in Spea multiplicata Cope enhances survival in the desert because the carnivore develops faster after consuming fairy shrimp and is able to …

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Back Cover Jan 1997

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

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Additions To The Pteridophyte Flora Of Iowa-Iv, James H. Peck, Jeffrey C. Nekola, William Thomas Jan 1997

Additions To The Pteridophyte Flora Of Iowa-Iv, James H. Peck, Jeffrey C. Nekola, William Thomas

Journal of the Iowa Academy of Science: JIAS

This report updates field collection records and summarizes nomenclatural changes of genera and binomials of species of Iowa pteridophytes based on the Flora of North America project. Botrychium simplex var. compositum, Gymnocarpium jessoense (Koidz.) Koidz. spp. parvulum Sarvela, Gymnocarpium Xhrittonianum (Sarvela) Pryer & Haufler, and Gymnocarpium Xintermedium Sarvela were recently added to the state flora. The flora now consists of 66 species, plus 7 hybrids, and 1 distinct form, for a total of 74 taxa. With the addition of 81 new county occurrence records, the Iowa pteridophyte flora now consists of 1754 county occurrence records. A data matrix of species/county …

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Midwestern Geology And Cornell College: The First 125 Years, Gene E. Hinman, Paul L. Garvin Jan 1997

Midwestern Geology And Cornell College: The First 125 Years, Gene E. Hinman, Paul L. Garvin

Journal of the Iowa Academy of Science: JIAS

The history of geology at Cornell College can be traced back almost to the college's beginnings. Though not the first to reach geology at Cornell, William Harmon Norton, more than any other person, shaped the Department of Geology and set it on its course of excellence. Born in 1856, the son of a Methodist minister, Norton developed an ardent interest in geology in his boyhood. A graduate of Cornell in Classics, Norton was hired by his alma mater in 1876 to reach Greek, bur his avocation was geology. He spent most of his spare time on weekends and during summers …

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Book Review - The End Of Science: Facing The Limits Of Knowledge, David Lopatto Jan 1997

Book Review - The End Of Science: Facing The Limits Of Knowledge, David Lopatto

Journal of the Iowa Academy of Science: JIAS

The June, 1997 issue of Harper's Magazine included a list of recently published books that have titles beginning with "The End of". There are thirty-one titles on the list. Publishers have been rushing to cash in on the public's emotional reaction to the coming end of the century. It is difficult to take some of these works seriously. Perhaps the hardest thesis to swallow is that science, including physics, chemistry, biology, and neuroscience, not to mention the social sciences and the philosophy of science, is coming to an end just as our somewhat arbitrary calendar ticks over to a new …

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Back Cover Jan 1997

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

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Hot-Packaging Reduces Lipid Oxidation And Improves Sensory Characteristics Of Cooked Turkey Meat, Maiko Ishikawa, Dong U. Ahn Jan 1997

Hot-Packaging Reduces Lipid Oxidation And Improves Sensory Characteristics Of Cooked Turkey Meat, Maiko Ishikawa, Dong U. Ahn

Journal of the Iowa Academy of Science: JIAS

The effects of two vacuum packaging methods (hot and cold vacuum packaging) on the storage stability and sensory characteristics of cooked meat were compared. Ground turkey breast and leg meat patties were cooked, vacuum packaged appropriately, and stored up to 22 days. Lipid oxidation was measured by the thiobarbituric acid (TBA) test. In addition, Total aerobic count and sensory evaluation (flavor, juiciness, tenderness, overall acceptability) were conducted. There was no significant difference in aerobic plate count by packaging methods; however, panelist rating revealed that hot-packaged turkey leg meat had higher juiciness and overall acceptability scores than cold-packaged ones. Although TBARS …

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Helminth Ova Recovered From Raptors Admitted For Rehabilitation, Shawn Hawks, Rick Klann Jan 1997

Helminth Ova Recovered From Raptors Admitted For Rehabilitation, Shawn Hawks, Rick Klann

Journal of the Iowa Academy of Science: JIAS

Fecal samples from 34 raptors admitted for rehabilitation were examined for helminth ova. All 34 birds, representing 13 different species, passed helminth ova in their feces. Six different types of helminth ova were identified, including strigeid trematode, cestode, Capillaria, Porrocaecum, Ascaridia and spiurid nematode. From this study, it appears that helminths, particularly tapeworms, are common parasites of raptors.

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Awards And Recognition, Iowa Academy Of Science, 1997 Jan 1997

Awards And Recognition, Iowa Academy Of Science, 1997

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

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