caa a22 4500 475750772 CHVBK 20180406123523.0 cr unu---uuuuu 170329e20000301xx s 000 0 eng 10.1023/A:1009860827216 doi (NATIONALLICENCE)springer-10.1023/A:1009860827216 Distribution of range and cultivated grassland plants in southern Alberta [Elektronische Daten] [Michael Hill, Walter Willms, Richard Aspinall] We analysed the geographic distribution of native grassland and introduced grassland plants and the association of species abundance with climate and site characteristics in southern Alberta using a database of range and pasture assessments collected during 1991, 1992 and 1993. Distribution maps of native and introduced grassland plants could be inferred from association between site data recording botanical composition or presence and mean monthly climate surfaces for May and August. Introduced species formed three main geographical patterns with alfalfa, smooth bromegrass and crested wheatgrass most widespread, Russian wildrye restricted to the south eastern quarter and timothy, creeping red fescue, bluegrass and clovers restricted to the northern half. Native plants formed four main patterns characterised by Stipa comata and Bouteloua gracilis - south eastern; Agropyron spp. - widespread; Festuca spp. - northern and foothills; and Stipa viridula - sparse. Relative abundance of Stipa comata and Bouteloua gracilis were related primarily to latitude and longitude and variables describing temperature during the growing season. Biomass increased and range condition decreased with increasing latitude reflecting the decline in dominant native species, the increase in introduced and invader species and the better growing season moisture in northern areas. The maps provide a recent snapshot of the condition of commercially utilised native and cultivated grasslands in Alberta. They constitute a valuable reference point for comparison with future climate or management-induced change. Kluwer Academic Publishers, 2000 Biogeography nationallicence Biomass nationallicence Canada nationallicence Diversity nationallicence Fescue prairie nationallicence Inductive modelling nationallicence Interpolation nationallicence Mixed prairie nationallicence Hill Michael CSIRO Animal Production, CSIRO Centre for Mediterranean Agricultural Research, PMB PO Wembley, 6014, WA, Australia aut Willms Walter Agriculture and Agri-Food Canada, Lethbridge Research Station, T1J4B1, Lethbridge, Alberta, Canada aut Aspinall Richard Geographic Information and Analysis Center, Department of Earth Sciences, Montana State University, 59717-3490, Bozeman, MT, USA aut Plant Ecology Kluwer Academic Publishers 147/1(2000-03-01), 59-76 1385-0237 147:1<59 2000 147 11258 https://doi.org/10.1023/A:1009860827216 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1009860827216 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hill Michael CSIRO Animal Production, CSIRO Centre for Mediterranean Agricultural Research, PMB PO Wembley, 6014, WA, Australia aut NATIONALLICENCE 700 1- Willms Walter Agriculture and Agri-Food Canada, Lethbridge Research Station, T1J4B1, Lethbridge, Alberta, Canada aut NATIONALLICENCE 700 1- Aspinall Richard Geographic Information and Analysis Center, Department of Earth Sciences, Montana State University, 59717-3490, Bozeman, MT, USA aut NATIONALLICENCE 773 0- Plant Ecology Kluwer Academic Publishers 147/1(2000-03-01), 59-76 1385-0237 147:1<59 2000 147 11258 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer