History of Polar Bears as Summer Residents on the St. Matthew Islands, Bering Sea

Polar bears were found as summer residents on the St. Matthew Islands in the northern Bering Sea from the time of their discovery in the mid-18th century until the late 19th century, when the last bears were presumably shot by crews from Canadian and American sealers and a U.S. revenue cutter. Historical documents suggest that the killing of the last summer-resident polar bears on the St. Matthew Islands was an indirect consequence of the controversy between the United States and Great Britain over management of the fur seal harvest and the associated pelagic hunting of these seals. Although polar bears have continued to be present near the St. Matthew Islands in winter, when sea ice is present, a metapopulation of summer-resident bears has not reestablished on these islands. In 1972, the State of Alaska considered a proposal to reestablish a summer-resident polar bear population on the St. Matthew Islands, and since 2008, when the United States listed the polar bear as a threatened species, such reestablishment has been suggested as a conservation strategy. However, given the observed changes in local Bering Sea ice conditions in recent decades, the lack of detailed information on the population ecology and habitat dependencies of the historical St. Matthew bears, and the unavailability of an analogous extant metapopulation of polar bears for comparison, it is highly unlikely that reestablishment of summer-resident polar bears on the St. Matthew Islands could be realized.Des ours polaires résidaient l’été sur les îles St. Matthew, dans le nord de la. mer de Béring, du moment où ils ont été découverts vers le milieu du XVIIIe siècle jusque vers la fin du XIXe siècle, lorsque les derniers ours auraient été tués par les équipages de phoquiers canadiens et américains ainsi que par des pataches de la douane américaine. Des documents historiques laissent entendre que la mise à mort des derniers ours polaires d’été sur les îles St. Matthew était une conséquence indirecte de la controverse entre les États-Unis et la Grande-Bretagne au sujet des récoltes d’otaries à fourrure et de la chasse pélagique connexe de ces otaries. Bien que la présence des ours polaires se soit poursuivie dans les environs des îles St. Matthew l’hiver, lorsqu’il y a de la glace de mer, une métapopulation d’ours d’été ne s’est pas réimplantée sur ces îles. En 1972, l’État de l’Alaska a considéré une proposition en vue du rétablissement de la population d’ours polaires résidant sur les îles St. Matthew l’été, et depuis 2008, lorsque les États-Unis ont ajouté les ours polaires à la liste des espèces menacées, ce rétablissement a été suggéré en guise de stratégie de conservation. Cependant, compte tenu des changements observés dans le régime des glaces de la mer de Béring ces dernières décennies, de l’absence de renseignements détaillés sur l’écologie de la population et sur les dépendances à l’habitat des ours historiques de St. Matthew, de même que de l’absence d’une métapopulation analogue historique à des fins de comparaison, il est peu vraisemblable que le rétablissement des ours polaires en résidence d’été sur les îles St. Matthew puisse se concrétiser

Broadband Records of Earthquakes in Deep Gold Mines and a Comparison with Results from SAFOD, California

For one week during September 2007, we deployed a temporary network of field recorders and accelerometers at four sites within two deep, seismically active mines. The ground-motion data, recorded at 200 samples/sec, are well suited to determining source and ground-motion parameters for the mining-induced earthquakes within and adjacent to our network. Four earthquakes with magnitudes close to 2 were recorded with high signal/noise at all four sites. Analysis of seismic moments and peak velocities, in conjunction with the results of laboratory stick-slip friction experiments, were used to estimate source processes that are key to understanding source physics and to assessing underground seismic hazard. The maximum displacements on the rupture surfaces can be estimated from the parameter Rv, where v is the peak ground velocity at a given recording site, and R is the hypocentral distance. For each earthquake, the maximum slip and seismic moment can be combined with results from laboratory friction experiments to estimate the maximum slip rate within the rupture zone. Analysis of the four M 2 earthquakes recorded during our deployment and one of special interest recorded by the in-mine seismic network in 2004 revealed maximum slips ranging from 4 to 27 mm and maximum slip rates from 1.1 to 6:3 m=sec. Applying the same analyses to an M 2.1 earthquake within a cluster of repeating earthquakes near the San Andreas Fault Observatory at Depth site, California, yielded similar results for maximum slip and slip rate, 14 mm and 4:0 m=sec

Sebastopol State Historical Park (41GU9), Seguin, Texas: Archeological Excavations, 1978-1988

The town of Seguin in Guadalupe County, Texas, was known for its numerous limecrete structures. Limecrete structures probably once numbered more than 100; now, the house known as Sebastopol is one of only two still standing. Between 1978 and 1988, archeological excavations were conducted by the Texas Parks and Wildlife Department in and around Sebastopol. The excavations were preparatory to and in conjunction with architectural restoration of the building and development of the site as a State Historical Park. Archeological excavations were intended to evaluate only those areas impacted by the architectural restoration. Excavation units were placed primarily in and around the building, but also around the cistern and in other yard areas. This report, prepared by Prewitt and Associates, Inc., summarizes the excavation seasons and provides analyses of ceramics from across the site as well as diagnostic artifacts from three rooms in the house. Artifacts range in age from the mid nineteenth century up to modem times and came from as far away as Europe and the Far East. Of 106,586 artifacts recovered by the Texas Parks and Wildlife Department, 4,071 artifacts are discussed here

One Hundred Years of Street Photography

A program from an exhibition featuring street photography from a variety of artists including but not limited to Diane Arbus, Alfred Stieglitz, Henri Cartie Bresson, and many more. One Hundred Years of Street Photography ran from February 20 through April 3, 1994. The catalog for this exhibition was originally available via CD-ROM.https://corescholar.libraries.wright.edu/restein_catalogs/1049/thumbnail.jp

Wilfred Jones, American Illustrator (1888-1968)

Artwork by Wilfed Jones, lent by the artist\u27s daugher, Elizabeth R. Greenhall, November 14th - December 14th, 1977https://digitalcommons.lasalle.edu/exhibition_catalogues/1012/thumbnail.jp

Water Being Water

IQ. DNA. MRI. FYI. In an ever-changing world, we find ourselves conversing with abbreviated acronyms and phrases. They drive today\u27s economy, political agenda, and water cooler chitchat. They define our use of resources and the attention given to matters. Who we are, or think we are, are wrapped around their brevity. In our hurried attempt to sort through the complexities of life we use them to only answer the obvious-How? Unfortunately, an equally important question, Why? is often ignored. The solving of the how of things has generally been left to the scientists and the reasons as to the why for artists to decipher. This publication and exhibition takes a new approach by making the two questions inseparable. Using the simplest of elements, H20, a scientist turned artist, and two writers, one from the sciences and the other from the arts, have begun a new conversation. It is a discussion that deserves our attention and participation.https://corescholar.libraries.wright.edu/restein_catalogs/1051/thumbnail.jp

James Bowdoin: Patriot and Man of The Enlightenment (pamphlet)

Catalog of an exhibition held at the Bowdoin College Museum of Art, May 28-September 12, 1976.https://digitalcommons.bowdoin.edu/art-museum-exhibition-catalogs/1027/thumbnail.jp