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Articles 3511 - 3540 of 4620
Full-Text Articles in Entire DC Network
On The Nature Of Norms: Biology, Morality, And The Disruption Of Order, Owen D. Jones
On The Nature Of Norms: Biology, Morality, And The Disruption Of Order, Owen D. Jones
Vanderbilt Law School Faculty Publications
This essay discusses the legal implications of bio-behavioral underpinnings to norms, morality, and economic order. It first discusses the recent book "The Great Disruption: Human Nature and the Reconstitution of Social Order," in which Francis Fukuyama explores the importance of evolved human nature to the reconstruction of social order and a thriving economy. It then addresses the extent to which we can usefully view law-relevant norms as products of evolutionary - as well as economic - processes.
Program Abstracts, 112th Session, Iowa Academy Of Science, April 21-22, 2000, Iowa Academy Of Science
Program Abstracts, 112th Session, Iowa Academy Of Science, April 21-22, 2000, Iowa Academy Of Science
Iowa Academy of Science Documents
Presentation abstracts from the annual meeting of the Iowa Academy of Science
The Annual Meeting Of The Iowa Academy Of Science April 21-22, 2000 [Program, 112th Meeting], Iowa Academy Of Science
The Annual Meeting Of The Iowa Academy Of Science April 21-22, 2000 [Program, 112th Meeting], Iowa Academy Of Science
Iowa Academy of Science Documents
Contents:
Program Summary --- 1
General Session Speakers --- 4
Awards --- 7
Symposia Programs --- 8
Special Events --- 8
Poster Sessions --- 9
Section Programs/Special Sessions --- 9
Agricultural Sciences --- 9
Anthropology --- 10, 16
Botany --- 11
Cellular, Molecular & Microbiology --- 17
Chemical Education --- 14
Chemistry: Inorganic, Analytical & Physical --- 18
Chemistry: Organic & Biological --- 18
Conservation --- 19
Earth Science Teaching --- 14
Elementary Science Teaching --- 14
Engineering --- 12
Geology --- 22
Physics --- 23
Physiology --- 23
Psychology & Linguistics --- 25
Science Teaching --- 14, 25
Zoology …
Bubble Ring Play Of Bottlenose Dolphins (Tursiops Truncatus): Implications For Cognition, Brenda Mccowan, Lori Marino, Erik Vance, Leah Walke, Diana Reiss
Bubble Ring Play Of Bottlenose Dolphins (Tursiops Truncatus): Implications For Cognition, Brenda Mccowan, Lori Marino, Erik Vance, Leah Walke, Diana Reiss
Sentience Collection
Research on the cognitive capacities of dolphins and other cetaceans (whales and porpoises) has importance for the study of comparative cognition, particularly with other large-brained social mammals, such as primates. One of the areas in which cetaceans can be compared with primates is that of object manipulation and physical causality, for which there is an abundant body of literature in primates. The authors supplemented qualitative observations with statistical methods to examine playful bouts of underwater bubble ring production and manipulation in 4 juvenile male captive bottlenose dolphins (Tursiops truncatus). The results are consistent with the hypothesis that dolphins monitor the …
The Gender Of Genetic Futures: The Canadian Biotechnology Strategy, Women And Health, Roxanne Mykitiuk, Fiona Miller, Lorna Weir
The Gender Of Genetic Futures: The Canadian Biotechnology Strategy, Women And Health, Roxanne Mykitiuk, Fiona Miller, Lorna Weir
All Papers
No abstract provided.
Distribution And Habitat Of The Southern Two-Lined Salamander, Eurycea Cirrigera, In Will County, Illinois: Implications For Population Management And Monitoring, David Mauger, Timothy Bell, Eric L. Peters
Distribution And Habitat Of The Southern Two-Lined Salamander, Eurycea Cirrigera, In Will County, Illinois: Implications For Population Management And Monitoring, David Mauger, Timothy Bell, Eric L. Peters
Journal of the Iowa Academy of Science: JIAS
The southern two-lined salamander (Eurycea cirrigera) was found to occur at numerous localities within the Kankakee River State Park in Will County, Illinois. The species is restricted to small drainages within the Kankakee River valley that have flow consisting of groundwater that discharges at seeps or springs at or within the valley bluff. Cooler water temperatures and possibly other conditions that are associated with water derived from seep or spring sources may be important factors in determining salamander abundance. This is particularly relevant to larval habitat. These observations suggest that the spring or seep-fed larval habitat may be the primary …
Book Review: Wildflowers And Other Plants Of Iowa Wetlands, Paul Christiansen
Book Review: Wildflowers And Other Plants Of Iowa Wetlands, Paul Christiansen
Journal of the Iowa Academy of Science: JIAS
Wildflowers and Other Plants of Iowa Wetlands. Sylvan T. Runkeland Dean M. Roosa. 1999. Iowa State University Press. 372 pages. ISBN 0-8138-2174-6 pbk.
Runkel and Roosa have scored again with an impressive book on the plants of Iowa wetlands. The format is similar to their very successful Wildflowers of the Tallgrass Prairie (ISU Press, 1989) with full-page color illustrations of each species with the facing page giving nomenclatural data, range and habitat, leaf, flower and fruit characteristics. Information and interesting facts about the plant, including uses by aborigines and early settlers, follows.
Wetland Mitigation And Amphibians: Preliminary Observations At A Southwestern Illinois Bottomland Hardwood Forest Restoration Site, Kenneth S. Mierzwa
Wetland Mitigation And Amphibians: Preliminary Observations At A Southwestern Illinois Bottomland Hardwood Forest Restoration Site, Kenneth S. Mierzwa
Journal of the Iowa Academy of Science: JIAS
Much has been written on amphibian declines attributed to habitat loss or fragmentation. Much less is known about the response of amphibians to restoration of wetland habitat. Amphibians were monitored at a series of southwestern Illinois wetland mitigation sites from 1995-1998. By the end of the study period, all seven species of amphibians previously known from the site had been found within restored wetlands, and an eighth species had apparently colonized the site. Amphibian species associated with open sunlit wetlands were the first to enter the mitigation sites and were the most abundant. As trees mature and mitigation sites become …
The Status Of The Blacknose Shiner (Notropis Heterolepis) Tn Iowa: A Preliminary Survey, Neil P. Bernstein, Michael Getting, Timothy Kamp, Stevenson Christain, Ryan Smith, Joseph Steele, Steven Steele
The Status Of The Blacknose Shiner (Notropis Heterolepis) Tn Iowa: A Preliminary Survey, Neil P. Bernstein, Michael Getting, Timothy Kamp, Stevenson Christain, Ryan Smith, Joseph Steele, Steven Steele
Journal of the Iowa Academy of Science: JIAS
During the last 45 years, the blacknose shiner (Notropis heterolepis) has been restricted to a three county area in northwestern Iowa. We surveyed locations where this siltation-intolerant species had been captured to update the status of the fish in the state. Streams were blocked with nets on both the upstream and downstream ends of sample areas, and fish were collected with a backpack electrofisher and seines. Lakes where the blacknose shiner had been found were also sampled. No blacknose shiners were found and several possible explanations are offered for their absence from historical sites.
Editorial Board & Iowa Academy Of Science Officers And Directors
Editorial Board & Iowa Academy Of Science Officers And Directors
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Distribution And Abundance Of Three Freshwater Mussel Species (B1valv1a: U Ntontdae) Correlated With Physical Habitat Characteristics In An Iowa Reservoir, J. R. Straka, J. A. Downing
Distribution And Abundance Of Three Freshwater Mussel Species (B1valv1a: U Ntontdae) Correlated With Physical Habitat Characteristics In An Iowa Reservoir, J. R. Straka, J. A. Downing
Journal of the Iowa Academy of Science: JIAS
A rapid drawdown (weeks) of a reservoir allowed us to determine the combined influence of water depth, maximum effective fetch, bottom slope, and substrate characteristics on abundance of three species of freshwater mussels. The three principal mussel species were significantly (PPyganodon grandis(Say) was most abundant on deeper shelves (ca. 3 m depth, slope 1 km), and sediment organic matter content was moderate (Lampsilis siliquoidea(Barnes), however, was most abundant in shallow water (Potamilus alatus(Say) had a more cosmopolitan depth distribution, but was found only on bottoms with low slope (Pyganodon grandiswas found to be negatively affected by increasing substrate organic matter …
Population Size Estimates For The Endangered Iowa Pleistocene Snail, Discus Macclintocki Baker, Tama K. Anderson
Population Size Estimates For The Endangered Iowa Pleistocene Snail, Discus Macclintocki Baker, Tama K. Anderson
Journal of the Iowa Academy of Science: JIAS
Discus macclintocki Baker, the Iowa Pleistocene snail, is a federally endangered species found only on algific talus slopes in northeastern Iowa and northwestern Illinois. Population size estimates for fourteen D. macclintocki populations in Iowa and Illinois ranged from 182 to 22,125 individuals. Estimates from the program CAPTURE as well as Bayesian estimation procedures gave similar results, although the Bayesian method allowed estimation of populations that could not be estimated with CAPTURE due to small sample sizes. A comparison of two methods of sampling, visual counts of quadrats and cover boards, showed that using cover boards resulted in much higher probabilities …
The North American Reporting Center For Amphibian Malformations, Douglas H. Johnson, Suzanne C. Fowle, Jeffrey A. Jundt
The North American Reporting Center For Amphibian Malformations, Douglas H. Johnson, Suzanne C. Fowle, Jeffrey A. Jundt
Journal of the Iowa Academy of Science: JIAS
The North American Reporting Center for Amphibian Malformations was established to provide a conduit of information about, and a systematic data base on, malformed amphibians. This article describes the Reporting Center and the variety of features available at its Web site, presents an example of a summary analysis that can be conducted with its data, discusses caveats about the data, and makes recommendations about systematic surveys to better understand patterns and trends in the incidence of malformed amphibians.
Demographic And Reproductive Characteristics Of A Southern Illinois Population Of The Crayfish Frog, Rana Areolata, Michael Redmer
Demographic And Reproductive Characteristics Of A Southern Illinois Population Of The Crayfish Frog, Rana Areolata, Michael Redmer
Journal of the Iowa Academy of Science: JIAS
Demographic (snout-vent length, skeletochronologically estimated age) and reproductive (fecundity, ova size) characteristics were examined in Riina areolata from Williamson County, Illinois. Fifty-nine frogs (36 males, 23 females) were sampled from breeding choruses in March 1996. Hematoxylinophilic annular lines of arrested growth (LAG) were detected in the diaphyses of cross-sectioned phalanges of all sampled frogs. t-tests revealed that male age (mean = 3.53 yr) and female age (mean = 3.83 yr) were not significantly different, but male SVL (mean = 82.78 mm) was significantly smaller than that of females (mean = 89.61 mm). There were positive correlations between SVL and age …
Herpetofaunal Abundance And Distribution In Northern Minnesota: Contributions Of Ecological Land Units And Assessment Of Sampling Methodology, Gabrielle Yaunches, S. R. Winterstein, H. Campa Iii, B. J. Kernohan, J. B. Haufler
Herpetofaunal Abundance And Distribution In Northern Minnesota: Contributions Of Ecological Land Units And Assessment Of Sampling Methodology, Gabrielle Yaunches, S. R. Winterstein, H. Campa Iii, B. J. Kernohan, J. B. Haufler
Journal of the Iowa Academy of Science: JIAS
Herpetofaunal species distributions need to be understood and mapped using landscape descriptions that incorporate important habitat features and ecological processes. An ecosystem management effort in northern Minnesota is characterizing a landscape as a coarse filter for ecological communities. The coarse filter approach involves looking at communities in different successional stages and habitat types in a region (Haufler et al. 1996). Documenting distributions and abundances of herpetofauna using this coarse filter approach will allow data about these species to be incorporated in landscape planning efforts.
Conclusions Drawn From The Malformity And Disease Session, Midwest Declining Amphibians Conference, 1998, Michael J. Lannoo
Conclusions Drawn From The Malformity And Disease Session, Midwest Declining Amphibians Conference, 1998, Michael J. Lannoo
Journal of the Iowa Academy of Science: JIAS
While the general problem of amphibian declines is well known, no issue recently has engendered as much concern by the public as amphibian malformities (Ouellet et al. 1996, Tietge 1996, Gray 1998, Helgen et al. 1998a and 1998b, D. Johnson 1998, T. Johnson 1998, Meteyer and Converse 1998). As a result, Gary Casper, Chris Phillips and I decided to assemble this symposium. The session was open to anyone who wished to participate. Nineteen papers were presented (there was one cancellation) and a panel discussion followed. I will organize this summary of, and conclusions drawn from, our symposium into two sections: …
Limits To Ice Thickness In Iowa During The Late Wisconsinan, Eric C. Brevik
Limits To Ice Thickness In Iowa During The Late Wisconsinan, Eric C. Brevik
Journal of the Iowa Academy of Science: JIAS
Minimum and maximum limits to Des Moines Lobe ice thickness in Iowa during the Late Wisconsinan glaciation are calculated. These limits are based on minimum and maximum ice thickness calculations for the Des Moines Lobe in eastern North Dakota using crustal depression indicated by Lake Agassiz strandlines. Minimum and maximum basal shear stresses for the Des Moines Lobe are calculated by projecting a flow line from the terminus of the Des Moines Lobe back up-ice to the study site in northeastern North Dakota. Ice thickness in Iowa is then calculated with a method that uses the basal shear stress values. …
Field Surveys Of Midwestern And Northeastern Fish And Wildlife Service Lands For The Presence Of Abnormal Frogs And Toads, Kathryn A. Converse, James Mattsson, Laura Eaton-Poole
Field Surveys Of Midwestern And Northeastern Fish And Wildlife Service Lands For The Presence Of Abnormal Frogs And Toads, Kathryn A. Converse, James Mattsson, Laura Eaton-Poole
Journal of the Iowa Academy of Science: JIAS
The national distribution of information on the discovery of malformations in Minnesota frogs in 1995 stimulated collection and examination of newly metamorphosed frogs during 1996. By late summer and early fall of 1996, malformed frogs and toads were reported on U.S. Fish and Wildlife Service (USFWS) lands in Vermont (Northeast, Region 5) and Minnesota (Midwest, Region 3). In response to these reports, biologists in USFWS Regions 3 and 5 conducted a survey, during the summer of 1997 to determine the distribution and type of malformations in frogs and toads on selected Federal lands. Region 3 personnel surveyed 38 field stations …
Editorial Board & Iowa Academy Of Science Officers And Directors
Editorial Board & Iowa Academy Of Science Officers And Directors
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Dutch John Excavations: Seasonal Occupations On The North Slope Of The Uintah Mountains., U.S. Forest Service
Dutch John Excavations: Seasonal Occupations On The North Slope Of The Uintah Mountains., U.S. Forest Service
All U.S. Government Documents (Utah Regional Depository)
From 1993-1995 Forest Service crews conducted an intensive archaeological inventory of the Dutch John Area, Daggett County, Utah. Seventy seven archaeological sites were identified within the exchange boundary. Thirty three sites were determined to be eligible for the National Register of Historic Places. Between April 1995 and September 1998 testing and excavation of the significant sites proceeded as outlined in the Dutch John Mitigation Plan. This volume reports the results of those excavations.
Landscape Associations Of Frog And Toad Species In Iowa And Wisconsin, U.S.A., Melinda G. Knutson, John R. Sauer, Douglas A. Olsen, Michael J. Mossman, Lisa M. Hemesath, Michael J. Lannoo
Landscape Associations Of Frog And Toad Species In Iowa And Wisconsin, U.S.A., Melinda G. Knutson, John R. Sauer, Douglas A. Olsen, Michael J. Mossman, Lisa M. Hemesath, Michael J. Lannoo
Journal of the Iowa Academy of Science: JIAS
Landscape habitat associations of frogs and toads in Iowa and Wisconsin were tested to determine whether they support or refute previous general habitat classifications. We examined which Midwestern species shared similar habitats to see if these associations were consistent across large geographic areas (states). Rana sylvatica (wood frog), Hyla versicolor (eastern gray treefrog), Pseudacris crucifer (spring peeper), and Acris crepitans (cricket frog) were identified as forest species, P. triseriata (chorus frog), H. chrysoscelis (Cope's gray treefrog), R. pipiens (leopard frog), and Bufo americanus (American toad) as grassland species, and R. catesbeiana (bullfrog), R. clamitans (green frog), R. palustris (pickerel frog), …
Book Review: Iowa's Geological Past: Three Billion Years Of Change, Raymond R. Anderson
Book Review: Iowa's Geological Past: Three Billion Years Of Change, Raymond R. Anderson
Journal of the Iowa Academy of Science: JIAS
Iowa's Geological Past: Three Billion Years of Change. Wayne Anderson, 1998. University of Iowa Press, Iowa City IA. xii + 424 pages. ISBN 0-87745-639-9, ISBN 0-87745-640-2 (pbk.).
Wayne Anderson, born in geode country in southeast Iowa, earned his Bachelors, Masters, and Ph.D. at the University of Iowa (writing a thesis and dissertation on Iowa geologic topics). He will complete a 37-year career teaching geology at the University of Northern Iowa with his retirement in the Spring of 2000. His research activities and the work of his students have added greatly to our understanding of the geology of eastern Iowa. In …
Higher Population And Twin Row Configuration Does Not Benefit Strip Intercropped Corn, M. M. Harbur, R. M. Cruse
Higher Population And Twin Row Configuration Does Not Benefit Strip Intercropped Corn, M. M. Harbur, R. M. Cruse
Journal of the Iowa Academy of Science: JIAS
Increased corn (Zea mays L.) grain yield with strip intercropping, made possible because of increased edge effects, makes this soil-conserving crop production system appealing to farmers. The objective of this study was to determine the population and row configuration needed to optimize the additional yield potential in each outside corn row. Treatments 'included: 74, 99, and 124 thousand plants ha-1 were grown in twin rows and 74 thousand plants ha-1 grown in single rows. Single rows or twin row centers were spaced 0.76 m. The experiment was conducted at four central Iowa sites during 1996 and 1997. Grain …
Comparing Species Of Bees For Controlled Pollination Of Helianthus Petiolaris In Field Cages, R. L. Wilson, C. A. Abel, M. E. Brothers
Comparing Species Of Bees For Controlled Pollination Of Helianthus Petiolaris In Field Cages, R. L. Wilson, C. A. Abel, M. E. Brothers
Journal of the Iowa Academy of Science: JIAS
Honey bees, Apis mellifera, have been used for several years to pollinate caged plant species maintained at the USDA-ARS North Central Regional Plant Introduction Station (NCRPIS), Ames, Iowa. Because maintaining large numbers of honey bees is expensive and time consuming, we began looking in 1995 for other pollinator species that can be easily managed and less expensive to maintain than A. mellifera. One species we tested was the hornfaced bee, Osmia cornifrons, a solitary bee imported from Japan in the late 1970s. We also tested a mixture of native bumblebees, Bombus bimaculatus and B. impatiens, which are native to the …
Checklist Of Instructions For Authors
Checklist Of Instructions For Authors
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Density-Dependent Effects On Microhabitat Selection And Activity Of Two Species Of Larval Ambystoma Salamanders, Jeanette M. Jaskula, Robert Brodman
Density-Dependent Effects On Microhabitat Selection And Activity Of Two Species Of Larval Ambystoma Salamanders, Jeanette M. Jaskula, Robert Brodman
Journal of the Iowa Academy of Science: JIAS
To be able to distinguish unnatural amphibian declines from natural population fluctuations we need a better understanding of the mechanisms that affect amphibian community structure. Larval pond-breeding salamanders exhibit density-dependent effects on population parameters, but little is known of the effect of density on behaviors that mediate interactions. Two species, Amby1toma tigrinum (tiger salamander) and A. laterale (blue-spotted salamander), were evaluated in laboratory aquaria for intraspecific and interspecific interactions that affect microhabitat selection and activity. Microhabitat selection was studied by partitioning containers into microhabitats that either contained or lacked refuges, and movement was recorded over a hexagonal grid to determine …