Vegetation patterns and environment of some alpine plant communities on Lakeview Mountain, southern British Columbia

1987 ◽  
Vol 65 (12) ◽  
pp. 2507-2516 ◽  
Author(s):  
Marilyn J. Ratcliffe ◽  
Roy Turkington
Keyword(s):  
British Columbia ◽  
Plant Communities ◽  
Abiotic Factors ◽  
Critical Factor ◽  
Small Scale ◽  
Alpine Plant ◽  
Kobresia Myosuroides ◽  
Alpine Plant Communities ◽  
Community Types ◽  
Provincial Park

Selected alpine plant communities of Lakeview Mountain in Cathedral Provincial Park of southern British Columbia were examined, as well as the corresponding abiotic factors of soils and microclimate. Multivariate analysis of percentage cover data revealed three major community types, dominated by Kobresia myosuroides (Vill.) Fiori, by Carex scirpoidea Michx., or by Carex scirpoidea and Carex capitata L. codominating. Abundant small-scale patterns in the form of significant associations between species were detected in all communities. Possible mechanisms generating these positive and negative associations are discussed and it is suggested that the species themselves, as well as abiotic factors, may be strong determinants of vegetation patterning. Species morphology, especially the root systems, may be the more important feature. The relative competitive abilities of these three major dominants may be a critical factor affecting the distribution of communities at the study site.

scholarly journals Weak and variable relationships between environmental severity and small-scale co-occurrence in alpine plant communities

2007 ◽  
Vol 95 (6) ◽  
pp. 1284-1295 ◽  
Author(s):  
S. DULLINGER ◽  
I. KLEINBAUER ◽  
H. PAULI ◽  
M. GOTTFRIED ◽  
R. BROOKER ◽  
...  
Keyword(s):  
Plant Communities ◽  
Small Scale ◽  
Alpine Plant ◽  
Alpine Plant Communities ◽  
Environmental Severity

scholarly journals Alpine plant communities of Tibet and Caucasus: in quest of functional convergence

2015 ◽  
Author(s):  
Tatiana G. Elumeeva ◽  
◽  
Vladimir G. Onipchenko ◽  
Elena N. Rovnaia ◽  
Yan Wu ◽  
...  
Keyword(s):  
Plant Communities ◽  
Alpine Plant ◽  
Functional Convergence ◽  
Alpine Plant Communities

Elevational advance of alpine plant communities is buffered by herbivory

2012 ◽  
Vol 23 (4) ◽  
pp. 617-625 ◽  
Author(s):  
James D. M. Speed ◽  
Gunnar Austrheim ◽  
Alison J. Hester ◽  
Atle Mysterud
Keyword(s):  
Plant Communities ◽  
Alpine Plant ◽  
Alpine Plant Communities

scholarly journals The state of coenopopulations of the vegetatively-semimobile species of Thymus in Southern Siberia

2019 ◽  
Vol 16 ◽  
pp. 00036
Author(s):  
Evgeniya Talovskaya ◽  
Irina Barsukova
Keyword(s):  
Plant Communities ◽  
Vegetative Growth ◽  
The State ◽  
Population Characteristics ◽  
Alpine Plant ◽  
Main Root ◽  
Southern Siberia ◽  
Alpine Plant Communities ◽  
Steppe Communities ◽  
Growth And Reproduction

The state of coenopopulations of vegetatively-semimobile dwarf shrubs Thymus iljinii, T. minussinensis, T. mongoliens, T. petraeus, widely distributed in steppe communities in Southern Siberia was studied. Adults of the species are a clump consisting of a primary and several partial bushes. For individuals characterized by the preservation of the main root, weak vegetative growth and reproduction, slow seizure of territory. The complex of data on organizational and population characteristics is analyzed. It is established that the real optimum state of coenopopulations of the studied species is achieved in the petrophytic variants of steppes located on the slopes of mountains. Conditions of highmountain steppe and alpine plant communities are unfavorable for Thymus.

Biogeographic deconstruction of alpine plant communities along altitudinal and topographic gradients

2013 ◽  
Vol 25 (1) ◽  
pp. 160-171 ◽  
Author(s):  
Borja Jiménez-Alfaro ◽  
Corrado Marcenó ◽  
Álvaro Bueno ◽  
Rosario Gavilán ◽  
José Ramón Obeso
Keyword(s):  
Plant Communities ◽  
Alpine Plant ◽  
Alpine Plant Communities ◽  
Topographic Gradients

Pollination in alpine Norway: flowering phenology, insect visitors, and visitation rates in two plant communities

1993 ◽  
Vol 71 (8) ◽  
pp. 1072-1079 ◽  
Author(s):  
Ørjan Totland
Keyword(s):  
Plant Communities ◽  
Interspecific Interactions ◽  
Flowering Phenology ◽  
Alpine Plant ◽  
Visitation Rates ◽  
Species Pairs ◽  
Alpine Plant Communities ◽  
Selection For ◽  
Insect Visitors ◽  
Key Words Alpine

Pollination studies in European alpine communities are few. The objective of this study was to describe the pollination ecology in two alpine plant communities at Finse, southwestern Norway. Because of late snowmelt and early winter at Finse, the time available for flowering and seed maturation is restricted. Flowering was concentrated at the beginning of the season in both communities, and large overlaps in flowering time were found for most species. In one of the communities, flowering peaks were significantly clumped, whereas in the other they were randomly distributed through the season. However, in this community, five insect-pollinated species flowered simultaneously early in the season. Diptera almost exclusively dominated the visitor assemblage. Most plant species pairs had high overlaps in flower visitor species. Species flowering simultaneously attracted the same visitor species. In one community, eight species pairs flowered sequentially and shared visitors. Visitation rates were highest at the lowest elevated site. The results are compared with those obtained in other alpine areas. It is argued that selection for an early flowering is probably stronger than selection pressures resulting from interspecific interactions. Key words: alpine, Diptera, flowering phenology, flower visitors, season length, visitation rate.

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