WildGagnon2005

Référence

Wild, M., Gagnon, D. (2005) Does lack of available suitable habitat explain the patchy distributions of rare calcicole fern species? Ecography, 28(2):191-196.

Résumé

In Canada, as in many countries, a relatively large number of fern species occur in specialized habitats and have low numbers of known populations containing few individuals. It has been suggested that the distribution of ferns is mostly determined by factors of climate and habitat due to relatively low limitations in ferns for dispersal and establishment. Here, we attempt to explain whether the local patchy distribution of three calcicole fern species rare in Canada (Asplenium ruta-muraria, Pellaea atropurpurea and Woodsia obtusa) is due to a lack of available habitat. Analyses based on micro-scale differences between sites occupied by the ferns and nearby, unoccupied sites did not reveal any significant differences, thereby indicating that the rarity of these species is not entirely driven by the rarity of their microhabitat at a local scale. Our results suggest that the widely accepted premise that ferns are not limited by dispersal or establishment should be reconsidered, as such limitations are the only likely explanation for empty available and suitable habitat. Copyright © Ecography 2005.

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@ARTICLE { WildGagnon2005,
    AUTHOR = { Wild, M. and Gagnon, D. },
    TITLE = { Does lack of available suitable habitat explain the patchy distributions of rare calcicole fern species? },
    JOURNAL = { Ecography },
    YEAR = { 2005 },
    VOLUME = { 28 },
    PAGES = { 191-196 },
    NUMBER = { 2 },
    NOTE = { 09067590 (ISSN) Cited By (since 1996): 1 Export Date: 25 April 2007 Source: Scopus CODEN: ECOGE doi: 10.1111/j.0906-7590.2005.04113.x Language of Original Document: English Correspondence Address: Wild, M.; Grp. Rech. Ecologie Forestiere I.; Univ. du Que. a Montreal; C. P. 8888, Succ. Centre Ville Montre?al, Que. H3C 3P8, Canada; email: wild.matthew@uqam.ca References: (1989) SAS STAT User's Guide, Ver. 6, 4th Ed., , SAS Inst., Cary, NC; (1993) Flora of North America, Vol. 2. Pteridophytes and Gymnosperms, 2. , Oxford Univ. Press; (2002) Canadian Species at Risk, May 2002, , Committee on the Status of Endangered Wildlife in Canada, Ottawa; (2002) Canadian Climate Normals or Averages 1971-2000, , http://climate.weatheroffice.ec.gc.ca/Welcome_e.html; Argus, G.W., White, D.J., (1983) Atlas of the Rare Vascular Plants of Ontario: Part 2, , National Museums of Canada, Ottawa; Barrington, D.S., Ecological and historical factors in fern biogeography (1993) J. Biogeogr., 20, pp. 275-279; Bouchard, A., Hay, S., Thelypteris limbosperma in eastern North America (1976) Rhodora, 78, pp. 552-553; Bouchard, A., Barabe?, D., Hay, S., Isolated colony of Oreopteris limbosperma (All) Holub in Gros Morne National Park, Newfoundland, Canada (1977) Nat. Can., 104, pp. 239-244; Bouchard, A., The rare vascular plants of Quebec (1983) Syllogeus No 48, , National Museum of Natural Sciences, National Museum of Canada, Ottawa; Britton, D.M., Legault, A., Rigby, S.J., Pellaea atropurpurea (L.) Link and Pellaea glabella Mett. in Quebec (1967) Nat. Can., 94, pp. 761-763; Brunton, D.F., Status of the southern maidenhair fern (Adiantum capillus-veneris) in Canada (1986) Can. Field-Nat., 100, pp. 404-408; Cousens, M.I., Blechnum spicant -habitat and vigor of optimal, marginal, and disjunct populations, and field observations of gametophytes (1981) Bot. Gaz., 142, pp. 251-258; Frazer, G.W., Canham, C.D., Lertzman, K.P., (1999) Gap Light Analyzer (GLA), Version 2.0: Imaging Software to Extract Canopy Structure and Gap Light Transmission Indices from True-colour Fisheye Photographs, Users Manual and Program Documentation, , Simon Fraser Univ., Burnaby, BC, and the Inst. of Ecosystem Studies, Millbrook, NY; Given, D.R., Changing aspects of endemism and endangerment in pteridophyta (1993) J. Biogeogr., 20, pp. 293-302; Greer, G.K., McCarthy, B.C., Gametophytic plasticity among four species of ferns with contrasting ecological distributions (1999) Int. J. Plant Sci., 160, pp. 879-886; Guo, Q.F., Kato, M., Ricklefs, R.E., Life history, diversity and distribution: A study of Japanese pteridophytes (2003) Ecography, 26, pp. 129-138; Hendershot, W.H., Lalande, H., Duquette, M., Ion exchange and exchangeable cations (1993) Soil Sampling and Method of Analysis, pp. 167-176. , Carter, M. R. (ed.), Lewis Publ; Hendrix, S.D., An evolutionary and ecological perspective of the insect fauna of ferns (1980) Am. Nat., 115, pp. 171-196; Karst, J., (2002) Ecological Separation among Fern Species in An Old-growth Forest, , M.Sc. thesis, McGill Univ., Montreal; Kato, M., Biogeography of ferns-dispersal and vicariance (1993) J. Biogeogr., 20, pp. 265-274; Labrecque, J., Lavoie, G., (2002) Les Plantes Vasculaires Menace?es Ou Vulne?rables du Que?bec, , Gouvernement du Que?bec, ministe?re de l'Environnement, Direction du patrimoine e?cologique et du de?veloppement durable, QC; Lellinger, D.B., (1985) A Field Manual of the Ferns and Fern-allies of the United States and Canada, , Smithsonian Inst. Press, Washington, DC; Marquez, A.L., On identifying common distribution patterns and their causal factors: A probabilistic method applied to pteridophytes in the Iberian Peninsula (1997) J. Biogeogr., 24, pp. 613-631; Maynard, D.G., Kalra, Y.P., Nitrate and exchangeable ammonium nitrogen (1993) Soil Sampling and Method of Analysis, pp. 25-38. , Carter, M. R. (ed.), Lewis Publ; McKeague, J.A., (1978) Manuel de Methodes d'E?chantillonnage et d'Analyse des Sols, , Comite? de pe?dologie, Ottawa, Canada; Milberg, P., Fern spores in a grassland soil (1991) Can. J. Bot., 69, pp. 831-834; Page, C.N., Experimental aspects of fern ecology (1979) The Experimental Biology of Ferns, pp. 551-589. , Dyer, A. F. (ed.), Academic Press; Peck, J.H., Peck, C.J., Farrar, D.R., Influences of life-history attributes on formation of local and distant fern populations (1990) Am. Fern J., 80, pp. 126-142; Penrod, K.A., McCormick, L.H., Abundance of viable hay-scented fern spores germinated from hardwood forest soils at various distances from a source (1996) Am. Fern J., 86, pp. 69-79; Richard, M., Bernhardt, T., Bell, G., Environmental heterogeneity and the spatial structure of fern species diversity in one hectare of old-growth forest (2000) Ecography, 23, pp. 231-245; Smith, A.R., Comparison of fern and flowering plant distributions with some evolutionary interpretations for ferns (1972) Biotropica, 4, pp. 4-9; Smith, A.R., Phytogeographic principles and their use in understanding fern relationships (1993) J. Biogeogr., 20, pp. 255-264; Tryon, R., Development and evolution offern floras of oceanic islands (1970) Biotropica, 2, pp. 76-84; Tryon, R., The biogeography of species, with special reference to ferns (1986) Bot. Rev., 52, pp. 117-156; Wagner, W.H., Rouleau, E., A western holly fern, Polystichum x Scopulinum, in Newfoundland (1984) Am. Fern J., 74, pp. 33-36. },
    ABSTRACT = { In Canada, as in many countries, a relatively large number of fern species occur in specialized habitats and have low numbers of known populations containing few individuals. It has been suggested that the distribution of ferns is mostly determined by factors of climate and habitat due to relatively low limitations in ferns for dispersal and establishment. Here, we attempt to explain whether the local patchy distribution of three calcicole fern species rare in Canada (Asplenium ruta-muraria, Pellaea atropurpurea and Woodsia obtusa) is due to a lack of available habitat. Analyses based on micro-scale differences between sites occupied by the ferns and nearby, unoccupied sites did not reveal any significant differences, thereby indicating that the rarity of these species is not entirely driven by the rarity of their microhabitat at a local scale. Our results suggest that the widely accepted premise that ferns are not limited by dispersal or establishment should be reconsidered, as such limitations are the only likely explanation for empty available and suitable habitat. Copyright © Ecography 2005. },
    KEYWORDS = { spatial distribution Asplenium ruta-muraria Filicophyta Pellaea atropurpurea Ruta Rutaceae Woodsia obtusa },
    OWNER = { brugerolles },
    TIMESTAMP = { 2007.12.05 },
}

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