Skip to Main Content
Vascular flora and geoecology of Mont de la Table, Gaspesie, QuebecAuthor(s): Scott W. Bailey; Joann Hoy; Charles V. Cogbill
Source: Rhodora. 117(969): 1-40.
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
Download Publication (736.63 KB)
DescriptionThe influence of substrate lithology on the distribution of many vascular and nonvascular plants has long been recognized, especially in alpine, subalpine, and other rocky habitats. In particular, plants have been classified as dependent on high-calcium substrates (i.e., calcicoles) based on common restriction to habitats developed in calcareous rocks, such as limestone and marble. In a classic 1907 paper on the influence of substrate on plants, M. L. Fernald singled out a particular meadow on Mont de la Table in the Chic-Choc Mountains of Quebec for its unusual co-occurrence of strict calcicole and calcifuge (i.e., acidophile) plant taxa. We re-located this site, investigated substrate factors responsible for its unusual plant diversity, and documented current plant distributions. No calcareous rocks were found on site. However, inclusions of calcareous rocks were found farther up the mountain. The highest pH and dissolved calcium concentrations in surface waters were found in a series of springs that deliver groundwater, presumably influenced by calcareous rocks up the slope. Within the habitat delineated by common occurrences of calcicole species, available soil calcium varied by a factor of five and soil pH varied by almost 1.5 units, depending on microtopography and relative connection with groundwater. Variation in hydrologic delivery of weathering products leads to large variation in chemical composition of soils and waters within calcareous-influenced habitats. Here, the fine-scale variability of habitat, rather than plasticity in the plants' tolerances, appeared to be responsible for co-occurrence of taxa considered to be strict calcicoles or calcifuges. The flora in 2005-2008 was very similar to what it was in 1906, although in-filling of woody vegetation and strong chemical gradients driven by climatically controlled hydrologic processes suggest the possibility of future vegetation changes with continued climate change.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, email@example.com if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationBailey, Scott W.; Hoy, Joann; Cogbill, Charles V. 2015. Vascular flora and geoecology of Mont de la Table, Gaspesie, Quebec. Rhodora. 117(969): 1-40.
Keywordsalpine tundra, boreal forest, calcicole, Chic-Choc Mountains, climate change, floristic change, Gaspesie, geobotany, groundwater seeps, Quebec, vegetation change
- Relationships between rare plants of the White Mountains and the late Cenozoic geology of the Colorado Plateau
- The shifting influence of abiotic drivers during landslide succession in Puerto Rico
- Plants' essential chemical elements
XML: View XML