River Forest Research Articles

Post‐emergence migration of stoneflies (Plecoptera) into the nearby forest

Abstract. 1. The post‐emergence lateral migration of both sexes of eight stonefly species was examined in a dystrophic, fourth‐order forest river in eastern Finland.2. For this purpose, 7351 stonefly adults were collected with eighteen trunk funnels positioned in rows of six at distances of approximately 1, 15 and 60 m from the river. A further 1880 adults were also caught from the vegetation of the bank zone by sweep netting and with slit traps.3. The species could be grouped into two types with respect to migration distance: Isoperla difformis, I.grammatica and Leuctra fusca tended to stay in the bank area, whereas Nemoura flexuosa, N.avicularis, Amphinemura borealis, L.hippopus and N.cinerea tended to disperse into the forest, so that the majority were found some distance away from the shore.4. The males of the leuctrids, N.flexuosa and N.cinerea migrated farther than the females.5. The sex ratio was significantly biased in all species except N.flexuosa. The isoperlids, leuctrids and A.borealis showed a significant predominance of females in the trunk funnel catches, but males were significantly dominant in N.avicularis and N.cinerea. The material caught by other methods reversed the ratio for I.difformis and N.avicularis. Comparison of the sex ratios of the species with other reports revealed marked variation and deviation from unity, much of which could be attributed to bias introduced by the sampling methods.6. Lateral migration seems to be the first phase in the colonization cycle, although the latter as such was not studied here. Adults of Euholognatha species migrate farther than those of Systellognatha, a difference of which may be due to their ability to feed as adults.

Speech on the occasion of the presentation of the 1995 Derek de Solla Price award to prof. Dr. A. F. J. Van Raan at the ISSI Conference held at River Forest, Illinois, on June 10, 1995

Speech on the occasion of the presentation of the 1995 Derek de Solla Price award to prof. Dr. A. F. J. Van Raan at the ISSI Conference held at River Forest, Illinois, on June 10, 1995

Acidification and recreational fisheries in Finland: A mail survey of potential impacts

In Finland, small forest lakes and rivers in the northern part of the country are more sensitive to acidic deposition than other Finnish waters. In some lakes, acid-sensitive fish populations have declined. A nationwide survey of fishers showed that, at present, the number of fishers whose primary fishing waters are affected by airborne acidification is negligible compared to the estimated total number of adult fishers (1.1 million). The proportion of the fishers who mainly fish in water types sensitive to airborne acidification is considerable, 3% for the rivers in northern Finland and 21% for small forest lakes. There is general concern among fishers about the effects of acidification. Changes in the fishing waters are attributed to acidification by 5–10% of the fishers, although in most cases other information about the fishing waters rules out acidification as an explanation for the changes. Among those who fish in sensitive types of waters, a willingness to mitigate potential damages was reported by approximately one third of all fishers. Clear differences in the willingness to rehabilitate the fishery were observed in relation to the importance of fishing as a spare time activity and the distance between the fishing waters and a home or summer cottage.

Conservation of biodiversity in alluvial hardwood forests of the temperate zone. The example of the Rhine valley

Destruction of wetland temperate forests was particularly high during the past three decades throughout the world. Among the alluvial communities, the hardwood forest, which represents the highest level of organization in big river plains, is very vulnerable to environmental damage. The present hardwood forests are scarce in Europe after wide clearcuts, and have suffered great damage after elimination of the natural river dynamics. In Europe, the Rhine is probably the most damaged fluvial system. However, hardwood forests are still present along the river, even if mainly seminatural and unflooded. The purpose of this paper is to present an overview of the ecological features of the Rhine hardwoods before and after human alteration, and to propose a planning strategy for their conservation, following the island biogeography theory of Harris. The ideas developed here could be used for other damaged river forests in the temperate zone.

Frank Lloyd Wright: the masterworks

This extraordinary book presents thirty-eight of the most renowned and significant buildings of America's premier architect, from his early Prairie work in Oak Park, Illinois, in the 1890s to his daring creations of the 1940s and 1950s. In entirely new photographs taken especially for this book by two leading architectural photographers under the direction of co-editor David Larkin, such internationally famous buildings as the Solomon R. Guggenheim Museum and Fallingwater and Wright's homes Taliesin, Taliesin West, and the Oak Park Home and Studio are seen afresh, benefiting from the photographers' special access. Several lesser-known residences, such as Auldbrass Plantation in South Carolina, an array of wooden buildings that is Wright's American alternative to antebellum architecture, the William H. Winslow house in River Forest, Illinois, one of the architect's earliest and most surprisingly decorative houses, and the Kenneth Laurent house in Rockford, Illinois, a masterful curvilinear design, are seen in full color and demonstrate dimensions of Wright's work less often seen before. Public buildings, such as the dramatic concrete, glass, and steel Marin County Civic Center and Beth Sholom Synagogue show Wright as engineering virtuoso as well as creative architect. In addition to these existing masterworks, only the most famous of which are open to the public, the book covers buildings that have been demolished, notably the Larkin Company Administration Building, Midway Gardens, and the Imperial Hotel, which are represented here by drawings and rich archival photographs. Each of the buildings is presented from conceptual sketch, plan, or drawing to finished masterwork, andeach is accompanied by an in-depth essay detailing the development of the work. Extensive quotes from Wright's writings, unpublished talks, and private letters to the clients give valuable insight into the architect's own thinking about each commission. Never before has Wright's architecture been presented so elaborately in one volume.

Building a Ceramic Engine: Applying Science & Technology to a Design and Research Problem

The following is a condensed version of an article written when the authors all were students at Oak Park and River Forest High School in Oak Park, Illinois. The article appeared originally in TIES Magazine, a journal covering technology, materials science, and design for science educators at all levels.

Entering state III. The convergence of the stage hypotheses

Journal of the American Society for Information ScienceVolume 43, Issue 3 p. 204-209 Research Entering state III. The convergence of the stage hypotheses Michael E. D. Koenig, Corresponding Author Michael E. D. Koenig Rosary College, Graduate School of Library and Information Science, River Forest, IL 60305Rosary College, Graduate School of Library and Information Science, River Forest, IL 60305Search for more papers by this author Michael E. D. Koenig, Corresponding Author Michael E. D. Koenig Rosary College, Graduate School of Library and Information Science, River Forest, IL 60305Rosary College, Graduate School of Library and Information Science, River Forest, IL 60305Search for more papers by this author First published: April 1992 https://doi.org/10.1002/(SICI)1097-4571(199204)43:3<204::AID-ASI2>3.0.CO;2-FCitations: 5AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Citing Literature Volume43, Issue3April 1992Pages 204-209 RelatedInformation

Effects of Simulated Ungulate Browsing on Aspen Characteristics and Nutritional Qualities

Natural resource managers in Michigan were concerned about the effects of ungulate browsing on forest stand regeneration. Consequently, we investigated the effects of ungulate browsing on aspen (Populus sp.) stand characteristics and nutritional qualities with simulated browsing experiments in the Pigeon River Country State Forest (Pigeon River Forest) in Michigan from 1985 to 1987

Effects of river water of different origin on the growth of marine dinoflagellates and diatoms in laboratory cultures

The hypothesis that acid humic-rich river water selectively favours dinoflagellates in comparison to diatoms in coastal waters was tested in two sets of laboratory experiments using unialgal cultures of marine phytoplankton. In the first experiment, three dinoflagellates, i.e., Prorocentrum minimum (Pav.) J. Schiller, P. micans Ehrenberg and Amphidinium carterae Hulburt, and three diatoms, i.e., Attheya decora T. West, Skeletonema costatum (Grev.) Cleve and Phaeodactylum tricornutum Bohlin, were grown in a mixture of 80% coastal ( S 20%.) and 20% river water. Water from seven different rivers was used. Four rivers had a high humic content (yellow substance 22.1 ± 0.9 · m −1) but lower inorganic N and P concentrations (“forest rivers”) while three rivers (“agricultural rivers”) had a lower humic content (10.7 ± 1.3 · m −1) but inorganic nutrient concentrations approximately three times as high as the forest rivers. The growth rates for the dinoflagellates were significantly higher in the medium with forest river water compared to the mixtures with agricultural river water while the opposite was true for the diatoms. In the second type of experiment, the diatom Ditylum brightwellii (T. West) Grun and the dinoflagellate P. minimum were grown, as semicontinuous dilution cultures, in mixtures of 90% coastal water ( S 20%.) and 10% river water. Water from four different rivers was used, one draining mainly agricultural soils and the other acidified humic-rich forested soils. River water of agricultural origin supported a higher D. brightwellii biomass and growth rate than river water draining forested soils while for P. minimum the opposite was true. Decreasing cell P quotas and increasing alkaline phosphatase activity indicated that D. brightwellii was P-deficient, especially when agricultural river water was added, while these physiological indices suggested that P. minimum cultures were not P-starved. Our results support the hypothesis that the discharge of acidified river water, rich in humic substances, to coastal waters, can play a role in shifting the species composition from diatoms to dinoflagellates.

Mercury concentrations in inland waters of gold-mining areas in Rondônia, Brazil

Total mercury concentrations in water, sediments and fish from the gold-mining areas of Brazil, especially the Amazon region, are presented. Mercury concentrations were variable among rivers, with the highest values found in samples from tributary forest rivers. Concentrations in water samples varied between 0.1 and 8.6 μg l −1, while in bottom sediments they reached 19 800 μg kg −1. Concentrations in edible parts of locally consumed fish reached up to 2700 μg kg −1 wet wt, surpassing by almost five times the Brazilian advisory level for human consumption.

Book Reviews

Abstract The Sounds of People and Places. Readings in the Geography of American Folk and Popular Music edited by George O. Carney Lanham: University Press of America, 1987. 339 pp., figs., charts, tables, maps, and biblio. $17.25, paper. World Geography: A Physical and Cultural Approach. Teachers' Edition by J.L. Swanson River Forest, IL: Laidlaw Brothers, 1987. 656 and T128 pp., illus., charts, graphs, gazetteer, maps, index, and teacher's manual. $28.95, cloth (student edition, $22.98).

Streamwater quality following logging and wildfire in a dry sclerophyll forest in southeastern Australia

In an 8-year study in two large adjacent forested river basins located in southeastern Australia, streamwater cationic composition was found to be greatly influenced by the mineralogy of the major lithology in each basin. While sodium was the dominant streamwater cation in each basin, it was relatively much higher in the Wallagaraugh basin in which the major bedrock contained considerably greater proportions of potash feldspar than in the Towamba basin. The chemistry of bulk precipitation, while similar in each basin, may have influenced the ultimate ionic composition of streamwater to a greater degree in the Towamba basin than in the Wallagaraugh basin. Streamwater cationic concentrations in small sub-catchments subjected to logging and/or wildfire initially decreased relative to concentrations in an untreated control catchment in response to relative discharge increases, but became relatively greater than pre-wildfire 3–4 years later. Potassium concentrations in streamwater increased relative to the control in the year of the fire. Changes in the propprtions of cations in streamwater in the small catchments during the study suggested that hydrologic changes resulting from a protracted drought, and from logging and/ or wildfire, may have influenced ionic releases and ionic transport processes in these catchments. While these changes were readily detected in small catchments, they seem to have been largely buffered out in the major rivers. Streamwater turbidity levels were increased in the year of logging by combinations of clearfall logging and wildfire in the small catchment study. Wildfire alone did not increase sampled turbidity levels. All burnt catchments, and especially those logged, experienced a reduction in sampled stream turbidity levels during the post-treatment period such that within 5 years the levels were significantly lower than those in unburnt, unlogged controls. These reductions are attributed to better catchment protection afforded by the dense revegetation of burnt areas which occurred during this period. Turbidity levels in the logged research catchments were in general similar to those in major streams in the Wallagaraugh Valley whose catchments had also been subject to logging during the study period. Streams sampled in the nearby Towamba Valley, which experienced less logging in the period, had lower turbidity values throughout.

Epilithic metabolism of dissolved organic carbon in boreal forest rivers

The utilisation of colloidal and dissolved organic carbon (CDOC) by boreal river epilithon was investigated. The technique of microcalorimetry was used to determine the metabolic response of the epilithon in terms of both absolute levels and utilisation of material of apparent molecular weight (AMW) above and below 1000. Short-term perfusions were used to measure absolute levels of metabolic heat output for comparison with other studies, and long-term perfusions were used to study the relative utilisation of different molecular weight fractions. The results indicated low levels of metabolic heat output from boreal river epilithon with a shorter lag period in the utilisation of CDOC than we have found in a temperature river system. Long-term perfusions indicated a considerable increase in metabolic heat output on removal of high-molecular-weight material. We discuss these results in terms of a ‘competitive access model’ whereby slowly metabolised high-molecular-weight compounds saturate adsorption sites on the epilithon surface, resulting in a low metabolic heat output. When these compounds are removed, ‘labile’ low-molecular-weight molecules may more readily adsorb to or diffuse into the epilithon matrix.

Epilithic metabolism of dissolved organic carbon in boreal forest rivers

The utilisation of colloidal and dissolved organic carbon (CDOC) by boreal river epilithon was investigated. The technique of microcalorimetry was used to determine the metabolic response of the epilithon in terms of both absolute levels and utilisation of material of apparent molecular weight (AMW) above and below 1000. Short-term perfusions were used to measure absolute levels of metabolic heat output for comparison with other studies, and long-term perfusions were used to study the relative utilisation of different molecular weight fractions. The results indicated low levels of metabolic heat output from boreal river epilithon with a shorter lag period in the utilisation of CDOC than we have found in a temperature river system. Long-term perfusions indicated a considerable increase in metabolic heat output on removal of high-molecular-weight material. We discuss these results in terms of a ‘competitive access model’ whereby slowly metabolised high-molecular-weight compounds saturate adsorption sites on the epilithon surface, resulting in a low metabolic heat output. When these compounds are removed, ‘labile’ low-molecular-weight molecules may more readily adsorb to or diffuse into the epilithon matrix.

Problems and Promise of Extended Life

Problems and Promise of Extended Life Get access Old Age: Do Not Go Gentle, two part series, 16mm, ¾″ or ½″ videocassette: (a) Part I: Problems of the Aged, 52 min/color/1978; (b) Part II: Alternate Solutions, 52 min/color/1978. Producer, MTI Teleprograms Inc., 108 Wilmont Road, Deerfield, IL 60015; (800) 323-5343. Sale $645 (video), $715 (film), rent $70. Andrea Nevins, MPH, Andrea Nevins, MPH Editor Search for other works by this author on: Oxford Academic PubMed Google Scholar Susan Quattrochi-Tubin, PhD, TRS Susan Quattrochi-Tubin, PhD, TRS Assistant Professor Psychology Department Rosary College7900 West Division Street River Forest, IL 60305 Search for other works by this author on: Oxford Academic PubMed Google Scholar The Gerontologist, Volume 25, Issue 4, August 1985, Page 448, https://doi.org/10.1093/geront/25.4.448 Published: 01 August 1985

POLLEN DISPERSAL BY HUMMINGBIRDS AND BUTTERFLIES: A COMPARATIVE STUDY OF TWO LOWLAND TROPICAL PLANTS.

Because of the difficulties in measuring the distances to which pollen or seed is dispersed, information on gene flow in plant populations is quite limited (Levin and Kerster, 1974). This is particularly true of plants in complex species-rich tropical communities for which such information is of much value in models of speciation for tropical forest trees (Fedorov, 1966; Ashton, 1969; Bawa, 1974, 1979). To the best of our knowledge there are only four reports of pollen dispersal in tropical plants (Linhart, 1973; Frankie et al., 1976; Linhart and Mendenhall, 1977; see also Linhart and Feinsinger, 1980). Here we report the results of a comparative study of pollen flow for two early successional species in Costa Rica: Malvaviscus arboreus is a hummingbird-pollinated shrub or small tree, with hermaphrodite flowers and Cnidoscolus urens is a monoecious, butterfly-pollinated annual herb. The subject populations of the two species occupied adjacent habitats; M. arboreus was confined to margins and light gaps in the river forest and C. urens was found in a fallow rice field adjoining the river forest. Apart from differences in sexual and pollination systems, habit, and habitat, the two species also differed in population density: C. urens occurred in relatively dense patches, 3.0 x 10-2/m2, whereas the population of M. arboreus was more scattered, 3.11 x 10-3/m2 in our sample. Although our principal objective was to determine the effect of differences in pollinator foraging behavior and plant density on pollen flow, our studies also differ

Interaction skills for Nurse Managers

RICHARD CAIABRFSE, PhD, is the chairman of the Communication Arts and Sciences Depanment and an associate professor of Organizational Behavior in the Graduate School of Business at Rosary College in River Forest, Illinois.

ENVIRONMENTAL THRESHOLD FUNCTIONS FOR USER ORIENTED RESOURCE PLANNING AND MANAGEMENT1

ABSTRACT: Managers of water related outdoor recreation resources want to provide facilities and recreational opportunities of high quality that are attractive to recreationists. The reported research develops a relevant site quality assessment and measurement procedure called environmental threshold modeling. This modeling procedure is based upon the idea that individuals (i.e., recreationists) have specific, identifiable evaluative criteria which can be expressed as a mathematical function of various site characteristics. The function of interest is called a threshold function because it separates acceptable recreational settings from unacceptable settings. Individual specific threshold functions can be easily aggregated to form a population specific threshold function that estimates the proportion of a population that would find the recreational setting acceptable for some specific activity. Presented in this paper are illustrative calibration results based upon survey data collected from recreational canoeists using the Pine River in Michigan's Manistee National Forest.

The Shaping of Jonah

This imaginary exchange of correspondence between his editor and Jonah, the fifth in line of the twelve minor prophets, reminds us of the literary process of transcribing prophecy to prose. Authors always tend to be suspicious of editors; witness the dire anathema pronounced by the author of the Apocalypse against all meddling redactors (Rev. 22:18-19). But sometimes editors and publishers are needed to get immortal narratives into print. Biblical scholars are usually so busy scrutinizing the text, or disputing about hermeneutical methodology, that the rest of us may be completely unaware of the initial state of manuscript copy-editing. Anyway, here is a witty, and scholarly, fantasy about the writing of Jonah, one of the fantastic biblical books. The correspondence comes to us through the good graces of Professor Brevard Childs of Yale Divinity School. Mary Katharine Deeley is a graduate student at Yale, working with Dr. Childs in Old Testament studies. She is an alumna of Rosary College, River Forest, Illinois, and she has taught religion in a parochial high school. We hope our readers are not confused as to who is who among authors, editors, publishers, and literary entrepreneurs. After a reading of the correspondence, perhaps a fresh perusal of the Book of Jonah is in order. It's a little book with a big message—one that Jesus applied to himself (Matt. 12:40).

AAPT Distinguished Service Citations—February 1977

The American Association of Physics Teachers conferred Distinguished Service Citations on seven outstanding contributors to physics education: Monica Bainter, University of Wisconsin; Alfred M. Bork, University of California, Irvine; Ernest Coleman, U. S. Energy Research and Development Administration, Walter C. Connolly, Appalachian State University; Homer L. Dodge; Haym Kruglak, Western Michigan University; Joe P. Meyer, Oak Park and River Forest High School. The presentations were made by Janet B. Guernsey, retiring Past President of the Association, at its annual business session on 10 February 1977 in Chicago.