36 resultados para Western Springs
Resumo:
Printed by A.G. Hodges
Resumo:
This study examined annual variation in phenology, abundance and diversity of a bee community during 2003, 2004, 2006, and 2008 in recovered landscapes at the southern end of St. Catharines, Ontario, Canada. Overall, 8139 individuals were collected from 26 genera and sub-genera and at least 57 species. These individuals belonged to the 5 families found in eastern North America (Andrenidae, Apidae, Colletidae, Halictidae and Megachilidae). The bee community was characterized by three distinct periods of flight activity over the four years studied (early spring, late spring/early summer, and late summer). The number of bees collected in spring was significantly higher than those collected in summer. In 2003 and 2006 abundance was higher, seasons started earlier and lasted longer than in 2004 and 2008, as a result of annual rainfall fluctuations. Differences in abundance for low and high disturbance sites decreased with years. Annual trends of generic richness resembled those detected for species. Likewise, similarity in genus and species composition decreased with time. Abundant and common taxa (13 genera and 18 species) were more persistent than rarer taxa being largely responsible for the annual fluctuations of the overall community. Numerous species were sporadic or newly introduced. The invasive species Anthidium oblongatum was first recorded in Niagara in 2006 and 2008. Previously detected seasonal variation patterns were confirmed. Furthermore, this study contributed to improve our knowledge of temporal dynamics of bee communities. Understanding temporal variation in bee communities is relevant to assessing impacts caused on their habitats by diverse disturbances.
Resumo:
Marine palynology and benthic and planktonic foraminiferal geochemistry are combined to reveal long- and short-term (Milankovitch-scale) paleoceanographic changes across the upper half of the Olduvai Subchron (ca. 1.86--1.77 Ma, lower Pleistocene) in DSDP Hole 603C from the lower New Jersey continental rise. Planktonic foraminiferal Mg/Ca ratios reveal annual sea-surface temperatures between 14.5° and 25°C, whereas modern values vary between 16° and 20°e. Despite evidence of downslope transport in much of the studied interval, dinoflagellate cyst and acritarch assemblages appear to reflect fluctuating temperate to subtropical water masses. These assemblages comprise both neritic and oceanic species, and are marked by a transition upsection from warm conditions, dominated by Lingulodinium machaerophorum, Polysphaeridium zoharyi and Cymatiosphaera? invaginata, to cooler conditions dominated by Filisphaera filifera. Combining dinoflagellate cyst proxies with planktonic foraminiferal geochemistry allows downslope transport events to be recognized during glacial episodes, and events dominated by intensified bottom-water circulation during interglacial episodes. Sixtytwo in-situ dinoflagellate cyst and acritarch taxa were recorded including several not previously described.
Resumo:
Cover title: Masonic light on the abduction and murder of Wm. Morgan.
Resumo:
Presentation from the Office of Macdonald and Rykert regarding the Case of O’Connor vs. the Great Western Railway Co. This is a handwritten, 9 ½ page double sided document). Some of the witnesses for the plaintiff included: Robert Johnson, John Ryder, Edward Duffy, Gilbert Gregory, John Cutter, James Patterson, Samuel Rush and Francis Bigger, among others. They claimed that the Great Western Railway Co. was destroying their land. Jacob Dittrick claimed that the culverts were not large enough to carry off water. Mr. Jackson noticed injury to his flats. Wild grass was destroying the bottom grass, May 6, 1836.
Resumo:
Advertisement (printed 1 page) advertising Charles Dwight, agent for The Western Bond Board of Kansas City, 1872, n.d.
Resumo:
Approximate estimate of the cost of extending the Port Dalhousie and Thorold Railway from Geneva Street to the Great Western Railway Station at Lock no. 12 (2 copies) [one appears to be a rough copy] (2 pages, handwritten), Feb. 2, 1855.
Resumo:
Mr. Woodward’s timetable regarding the suspension bridge to Toronto via the Great Western Railway and Port Dalhousie Railway (1 page, handwritten), Jan. 22, 1856
Resumo:
Iron Mountain Route Railway schedule: the great through line St. Louis, Arkansas and Texas to the Hot Springs of Arkansas.
Resumo:
Telegram from Great North Western Telegraph Company of Canada to S.D. Woodruff from L. Cabot stating that he will take the shares, Jan. 16, 1886.