scholarly journals Additions to the Vascular Flora of Ontario, Canada, from the Sutton Ridges, Hudson Bay Lowland Ecoregion

2011 ◽  
Vol 125 (3) ◽  
pp. 241 ◽  
Author(s):  
Michael J. Oldham ◽  
Samuel R. Brinker
Keyword(s):  
North America ◽  
Plant Species ◽  
Vascular Plant ◽  
Field Studies ◽  
Hudson Bay ◽  
Northern Ontario ◽  
Vascular Flora ◽  
Arctic Plants ◽  
Diapensia Lapponica ◽  
Hudson Bay Lowland

Field studies in the Hudson Bay Lowland ecoregion of northern Ontario during 2010 resulted in the discovery of four native vascular plant species not previously confirmed from the province: Arctic Bellflower (Campanula uniflora; Campanulaceae), Lapland Diapensia (Diapensia lapponica; Diapensiaceae), Alpine Azalea (Kalmia procumbens; Ericaceae), and Alpine Brook Saxifrage (Saxifraga rivularis; Saxifragaceae). These four species are widespread arctic plants occurring in both North America and Eurasia and were found on the Sutton Ridges, a Precambrian bedrock inlier surrounded by the extensive wetlands of the Hudson Bay Lowland.

scholarly journals Functional trait data for vascular plant species from northeastern North America

Ecology ◽  
2021 ◽  
Author(s):  
Donald M. Waller ◽  
Alison K. Paulson ◽  
Jeannine H. Richards ◽  
William S. Alverson ◽  
Kathryn L. Amatangelo ◽  
...  
Keyword(s):  
North America ◽  
Plant Species ◽  
Vascular Plant ◽  
Functional Trait ◽  
Northeastern North America ◽  
Vascular Plant Species

Succession in the Hudson Bay Lowland, Northern Ontario, Canada

1996 ◽  
Vol 28 (2) ◽  
pp. 172 ◽  
Author(s):  
Lee F. Klinger ◽  
Susan K. Short
Keyword(s):  
Hudson Bay ◽  
Northern Ontario ◽  
Hudson Bay Lowland

scholarly journals Summit vascular flora of Serra de São José, Minas Gerais, Brazil

Check List ◽  
2009 ◽  
Vol 5 (1) ◽  
pp. 035 ◽  
Author(s):  
Ruy José Válka Alves ◽  
Jiří Kolbek
Keyword(s):  
Species Richness ◽  
Plant Species ◽  
Unit Area ◽  
Vascular Plant ◽  
Minas Gerais ◽  
Campo Rupestre ◽  
Small Range ◽  
Campos Rupestres ◽  
Endemic Plant ◽  
Vascular Flora

The campos rupestres form a mosaic of rocky savannas concentrated mainly along the Espinhaço chain, on the Brazilian shield. Though the Serra de São José lies over 100 km to the south of the Espinhaço chain, the campo rupestre flora of this small range harbors several endemic plant taxa. The provided checklist is the result of two decades of floristic research complemented with data from herbaria and literature. The flora is compared with the results of several other pertinent surveys. A total of 1,144 vascular plant species, representing 50.3 species/km2, were documented to date in the São José range, representing a species-richness per unit area over five times greater than other known campo rupestre floras. The most species-rich families were the Asteraceae (126 species), Orchidaceae (106), Melastomataceae (63), Leguminosae (60), Cyperaceae (45), Poaceae (41), Rubiaceae (37), Myrtaceae (28), Bromeliaceae (27), Eriocaulaceae (23), Lamiaceae (23), and Malpighiaceae (22).

Non-native species in the vascular flora of the national park «Samarsky Bir»

2016 ◽  
Vol 27 (3-4) ◽  
pp. 16-26
Author(s):  
B. A. Baranovski
Keyword(s):  
Plant Species ◽  
Native Species ◽  
National Park ◽  
Vascular Plant ◽  
National Level ◽  
Anthropogenic Transformation ◽  
Vascular Flora ◽  
Native Flora ◽  
Adventitious Species ◽  
Vascular Plant Species

Results of non-native flora surveys on Samara Dniprovska River valley within the designed National Park «Samarsky Bir» were analyzed in the paper. Scientific justification on first stage creation of the national-level National Park «Samarsky Bir» was prepared in 2012. Its area included the main park area with floodplain, arena and gully landscapes of the rivers Samara and Oril interstream. List of vascular plant species on floodplain, arena and gully habitats of Prisamar'ya counted 887 species. They are classified as 5 divisions, 6 classes, 108 families, 429 genera. This article presents a list of non-native flora fraction with bioecological characteristic of the plant species. The surveys were conducted by conventional methods on vascular flora studying. Analysis of the main plant ecomorphs was carried out by A. L. Belgard ecomorph system (1950). Invasion of plant species in the steppe zone of Ukraine has a long history complicated by significant anthropogenic transformation of the territory. We investigated the status of non-native plants, their ecomorphs, and tendency to invasiveness on the territory of National Park «Samarsky Bir» designed. Presence of 195 adventitious vascular plant species belonging to 48 families was determined. Of them, 7 families with the greatest abundance of non-native species contained 113 taxa (58 % of the total); 20 families were represented with 2–7 advents, and 20 families contained only 1 non-native species. Thus, today the share of non-native species in the vascular flora of the region accounted for nearly 22 %. Most of adventitious species are mesoxerophytes and xeromesophytes. In a cenomorphic relationship, vegetation being ruderal on the territory of Ukraine is dominated in composition of non-native flora. Within the total number of adventitious species, archaeophytes amount up 44 %, whereas neophytes come up to 56 %. The greatest abundance of adventitious species has been found in Brassicaceae, Asterasea and Poaceae families (15 %, 12 %, and 11 % of the total, respectively). 119 non-native vascular plant species were found in the steppe cenoses, 79 species in the gully and watershed forests, 90 species in floodplain forests, and 52 species on the territory of the sandy terrace. Among all the non-native species, 28 species have been identified as invasive, and there was a trend to increased invasiveness of some species in recent years. Among heterogenous species 12 of them were identified as invasive, and there was a tendency to increase theinvasiveness of some species in recent years. The analysis provided on non-native flora in the National Park evidences significant anthropogenic transformation of the territory; that requires establishment of appropriate regime on protection of this important ecological object.

The phytogeography of rare vascular plants in Ontario and its bearing on plant conservation

1992 ◽  
Vol 70 (3) ◽  
pp. 469-490 ◽  
Author(s):  
George W. Argus
Keyword(s):  
Coastal Plain ◽  
Vascular Plant ◽  
Plant Conservation ◽  
Rare Plants ◽  
Hudson Bay ◽  
Conservation Priority ◽  
Northern Ontario ◽  
Rare Taxa ◽  
High Conservation ◽  
Further Development

The phytogeographic patterns displayed by the 550 rare vascular plant taxa in Ontario, including 349 that are rare nationally, are correlated with counties, site regions, and floristic provinces. Rare taxa are concentrated in southwestern Ontario decreasing northward, with secondary concentrations along the Hudson Bay coast. Rare taxa in Ontario are predominantly peripheral taxa, which have their main ranges outside of Ontario. Many of these taxa, however, have a high Canadian conservation priority because they are also at risk in adjacent states or provinces. Rare taxa with Appalachian and Coastal Plain affinities are most common in southwestern Ontario. Arctic and boreal affinities predominate in Northern Ontario. These patterns are correlated with temperature and moisture parameters, which are incorporated with the Hills' site regions classification. Most high conservation priority taxa occur in the Carolinian region, the most highly settled and most highly agriculturalized part of the province. There is an urgent need for conservation of the remaining forest and wetlands in this region. The fragmentary ecosystems still remaining must be protected from further development. There is a need to study the correlation of rare plant occurrences with existing parks and reserves throughout the province to facilitate the identification of priority regions for protection. Key words: rare plants, phytogeography, conservation, Ontario.

Vascular flora and phytogeography of Cape Prince of Wales, Seward Peninsula, Alaska

1989 ◽  
Vol 67 (11) ◽  
pp. 3248-3259 ◽  
Author(s):  
Sylvia Kelso
Keyword(s):  
North America ◽  
Vascular Plant ◽  
Bering Strait ◽  
Vascular Flora ◽  
Local Abundance ◽  
Seward Peninsula ◽  
Phytogeographic Zone

Cape Prince of Wales on the western tip of the Seward Peninsula in Alaska is the closest point in continental North America to Asia. From here the eastern tip of the Chukotsk Peninsula is less than 80 km away across the Bering Strait. Owing to the position of the Seward Peninsula, its flora is of great biogeographic interest, yet until recently was poorly known because of the remoteness of the region. Here I document the 292 vascular plant taxa that compose the flora at Cape Prince of Wales. I consider this Bering Strait region a distinct phytogeographic zone. The flora has strong alpine affinities, and it is marked by the local abundance of certain Asiatic and Beringian species, and the absence of continental species requiring summer warmth that are common elsewhere on the Seward Peninsula.

scholarly journals A forty-seven year comparison of the vascular flora at three abandoned rice fields, Georgetown, South Carolina, U.S.A.

2021 ◽  
Vol 15 (1) ◽  
pp. 271-282
Author(s):  
Richard Stalter ◽  
Joseph Rachlin ◽  
John Baden
Keyword(s):  
South Carolina ◽  
Plant Species ◽  
Phragmites Australis ◽  
Marine Biology ◽  
Rice Field ◽  
Vascular Plant ◽  
Rice Fields ◽  
Water Salinity ◽  
Vascular Flora ◽  
Vascular Plant Species

The vascular flora identified in 1968–1969 in three rice fields of the Winyah Bay Estuary at the Bell W. Baruch Institute for Marine Biology and Coastal Research, Georgetown County, South Carolina, abandoned in 1915, was compared with the vascular flora present in 1987–1991 and 2013–2015. Twenty vascular plant species were identified in 1968–1969 and 22 in 2013–2015 at the most saline marsh, Thousand Acre Rice Field. Forty-seven taxa were reported at Airport Marsh in 1968–1969 and 27 in 2013–2015. Fifty-six taxa were reported at Alderly in 1968–1969 with 41 identified there in 2013–2015. A parsimony algorithm was used to evaluate the distribution and co-occurrence of vascular brackish marsh species in these fields sampled at the three intervals. There was a reduction in flora at the two least saline sites, Alderly and Airport Marsh, from 1968–69 to 1987–91 and 2013–2015. Three factors—rising sea level, an increase in water salinity, and invasion by Phragmites australis—may explain this shift. There was also a shift in the flora at Thousand Acre Rice Field from 1967–1969 to 1987–1991 and 2013–2015 after the marsh was savaged by Hurricane Hugo in 1989. Invasion by non-native Phragmites australis at all sites and increase in water salinity at all sites best explain the reduction in vascular plant species at Airport Marsh and Alderly over the 47-year collection period.

scholarly journals Vascular flora in cemeteries of the Roztocze region and surrounding areas (south-east Poland)

2012 ◽  
Vol 64 (2) ◽  
pp. 77-92 ◽  
Author(s):  
Aneta Czarna ◽  
Renata Nowińska
Keyword(s):  
Plant Species ◽  
Native Species ◽  
Vascular Plant ◽  
Vascular Flora ◽  
Vascular Plant Species ◽  
Systematic List ◽  
Surrounding Areas

The paper presents a systematic list of vascular plant species recorded at 78 cemeteries in the Roztocze region and surrounding areas. 543 species belonging to 75 families were recorded. Of these, 99 foreign and 43 native species were cultivated. 41 species introduced by humans to cemeteries can be regarded as the so-called established cemetery species. These species, once planted on graves, continue to grow or even spread after people stopped cultivating them.

scholarly journals The Omar Story: The Role of Omars in Assessing Glacial History of West-Central North America

2002 ◽  
Vol 54 (3) ◽  
pp. 257-270 ◽  
Author(s):  
Victor K. Prest ◽  
J. Allan Donaldson ◽  
Howard D. Mooers
Keyword(s):  
North America ◽  
Hudson Bay ◽  
Western Canada ◽  
Field Observations ◽  
Glacial History ◽  
Northern Ontario ◽  
West Central ◽  
History Of

Abstract The direction of Wisconsinan glacial dispersion of distinctive Proterozoic erratics derived from the Belcher Group in southeastern Hudson Bay is shown to have been northwestward, westward and southward for hundreds of kilometres across Hudson Bay, Northern Ontario, western Canada, and several adjoining northern States. The most distinctive of these erratics, termed "omars", are composed of massive siliceous wacke characterized by buff-weathering calcareous concretions; these erratics were derived from the Omarolluk Formation of the Belcher Group, exposed in the Belcher Islands of eastern Hudson Bay, and probably underlying much of the southern part of this inland sea. Far less common but equally distinctive are erratics of red oolitic jasper that were derived from the Kipalu Formation of the Belcher Group. In parallel with the now widely accepted field term "omar", we introduce the term "kipalu" for such erratics of oolitic jasper. A map showing the distribution of the distinctive erratics, in relation to indicators of Wisconsinan glacier movement, provides the basis for inferring at least two discrete glaciations that produced several major ice lobes. This paper summarizes the field observations of numerous Canadian and American earth scientists, traces the evolution of thought on provenance of the distinctive erratics, and outlines the criteria for distinguishing "true" omars from erratics derived from other bedrock sources of concretion-bearing wackes.

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