scholarly journals Multiscale habitat characterization of herbaceous Atlantic Coastal Plain Flora on lakeshores in Nova Scotia

Botany ◽  
2017 ◽  
Vol 95 (6) ◽  
pp. 587-598 ◽  
Author(s):  
Natasha Dazé Querry ◽  
Xavier Bordeleau ◽  
Karen A. Harper ◽  
Sean P. Basquill
Keyword(s):  
Nova Scotia ◽  
Coastal Plain ◽  
Species Abundance ◽  
The United States ◽  
Landscape Scale ◽  
Atlantic Coastal Plain ◽  
Suitable Habitat ◽  
Ecological Requirements ◽  
Management Actions ◽  
Atlantic Coastal

Atlantic Coastal Plain Flora (ACPF) are a group of plants mostly inhabiting lakeshores along the Atlantic coast of the United States, with disjunct populations in Nova Scotia and Ontario. To better define their ecological requirements, the main objective of this study was to determine the factors (biotic and abiotic habitat components) influencing ACPF communities (distribution, species abundance, and richness) at both the landscape and local scales. On 16 lakeshores in southwestern Nova Scotia, we characterized ACPF communities and habitat within 20 cm square contiguous quadrats distributed along 20 m transects (landscape scale) and in 5 m × 5 m grids (local scale). Performing redundancy analysis (n = 16 transects), we found that at the landscape scale, shoreline slope and shrub species distribution influenced the quantity of suitable habitat available for ACPF, with mineral shorelines supporting higher ACPF richness. Using spatial generalized linear mixed models (n = 3125 quadrats in five grids), we found that elevation, vegetation elements (shrubs, sundews, graminoids), and substrate type mostly influenced ACPF presence and abundance. ACPF also showed inter-specific differences in habitat preferences. Defining ACPF ecological requirements at both the landscape and local scales is important to guide conservation and management actions in Nova Scotia and throughout their North American range.

Disjunct Atlantic coastal plain species in Nova Scotia: Distribution, habitat and conservation priorities

1994 ◽  
Vol 68 (3) ◽  
pp. 217-224 ◽  
Author(s):  
Irene C. Wisheu ◽  
Cathy J. Keddy ◽  
Paul A. Keddy ◽  
Nicholas M. Hill
Keyword(s):  
Nova Scotia ◽  
Coastal Plain ◽  
Atlantic Coastal Plain ◽  
Conservation Priorities ◽  
Atlantic Coastal

New species of freshwater diatoms from acidic localities along the Atlantic Coastal Plain of the United States

Botany ◽  
2009 ◽  
Vol 87 (4) ◽  
pp. 409-427 ◽  
Author(s):  
Peter A. Siver ◽  
Paul B. Hamilton ◽  
Jeffery Pelczar
Keyword(s):  
New Species ◽  
Coastal Plain ◽  
The United States ◽  
Atlantic Coastal Plain ◽  
Similar Species ◽  
Geographic Proximity ◽  
Freshwater Diatoms ◽  
Dissolved Humic Substances ◽  
Atlantic Coastal ◽  
A New Species

During our investigations of freshwater sites along the Atlantic Coastal Plain of North America we had the opportunity to critically study five interesting diatoms with light (LM) and scanning electron microscopy (SEM), each of which is described here as a new species. Two of the organisms are in the genus Eunotia , Eunotia lewisii Siver & Hamilton sp. nov. and Eunotia quadra Siver & Hamilton sp. nov.; two in Frustulia , Frustulia crispula Siver, Pelczar, & Hamilton sp. nov. and Frustulia inculta Siver, Pelczar, & Hamilton sp. nov.; and the last is Neidium trainori Siver & Hamilton sp. nov. All five species are reported from acidic, poorly buffered, dilute waterbodies high in dissolved humic substances. Two of the taxa are found in suites of waterbodies in close geographic proximity, two in somewhat disjunct regions, and the fifth is only known from the type locality. The relationships of each taxon to similar species are discussed.

Lyell on the Geological Similarity of North America and Europe

1982 ◽  
Vol 1 (1) ◽  
pp. 45-47
Author(s):  
Leonard Wilson
Keyword(s):  
North America ◽  
Coastal Plain ◽  
North American ◽  
The United States ◽  
Atlantic Coastal Plain ◽  
Fossil Plants ◽  
Land Area ◽  
The North ◽  
The Difference ◽  
Atlantic Coastal

During his travels in America in 1841-1842 and 1845-1846, Charles Lyell was impressed by the difference of the living flora and fauna of North America from those of Europe. The fossil shells of the Cretaceous strata of New Jersey and of the Tertiary formations of the Atlantic Coastal Plain of the United States showed that North America had also constituted a separate biological region during the Cretaceous and throughout the Tertiary. By contrast, the fossil plants of North American coal formations were so closely similar to those of Europe that Lyell concluded that during the Carboniferous, Europe and North America must have formed a continuous land area. As evidence of a former land connection between North America and Europe, Lyell observed that the distribution of sediments among the strata of the Appalachians indicated that the Carboniferous strata of North America had been derived from land lying to the East — where the Atlantic Ocean now is. Similarly, the North American Silurian and other Paleozoic systems contained fossils similar to those of Europe, and their sediments were so distributed as to suggest that they had been derived from land lying to the East. Lyell pointed out the ancient uniformity of European and American fossil life, without being able to explain it.

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