Fire Resistance of Forest Species as Influenced by Root Systems

McLean, A.

doi:10.2307/3896195

Cited by 67 publications

(36 citation statements)

References 4 publications

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“…The decline in R. acetosella over periods was probably due to increased competition and/or the destruction of seeds by burning. With respect to L. borealis, while both Whittle et al (1997) and Lynham et al (1998) report that it was eliminated by burning, their results are reasonable considering that stolons of L. borealis are very close to the soil surface (McLean 1969). However, as stated previously, the conditions under which burning was conducted in our study may have contributed to its survival in Period 1.…”

Section: Species Whose Frequency Of Occurrence Was Increased Initiallsupporting

confidence: 84%

Effect of long-term burn-pruning on the flora in a lowbush blueberry (Vaccinium angustifolium Ait.) stand

Penney¹,

McRae²,

Rayment³

2008

Can. J. Plant Sci.

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. 2008. Effect of long-term burn-pruning on the flora in a lowbush blueberry (Vaccinium angustifolium Ait.) stand. Can. J. Plant Sci. 88: 351Á362. The effect of burn-pruning on the flora in a natural stand of lowbush blueberry was studied over a 24-yr period in Newfoundland and Labrador, Canada. Treatments were: not burned and burn-pruned every 2nd, 3rd, or 4th year. A vegetative survey was conducted before burning and periodically in succeeding years. Following statistical analyses, species were grouped according to their response to burning, as follows: those not significantly affected; those eliminated or whose frequency of occurrence was reduced; and those whose occurrence was increased. Initially, burning virtually eliminated Juniperus communis var. depressa, Empetrum nigrum, Cladina rangiferina, Lycopodium clavatum and Pleurozium schreberi, reduced the frequency of occurrence of nine species by 6 to 69%, and increased 13 others by 1 to 2050%. With burning, Polytrichum commune and Fragaria virginiana ssp. glauca, in particular, increased very early in the study to become two of the most prevalent species. Also, except for some initial effects of burning, the lowbush blueberry and some initially prevalent species (Festuca filiformis, Maianthemum canadense, Danthonia spicata, Cornus canadensis and Luzula multiflora var. acadiensis) remained among the most dominant species. Of the species studied, only seven each of those increased or decreased by burning were affected by the burnpruning cycle. In both groups, the greatest increases or decreases in the frequency of occurrence were obtained with the 2-yr burn-pruning cycle. Ils ont groupe´les espe`ces comme suit, selon leur re´action au traitement en recourant a`des me´thodes d'analyse statistique : plantes peu touche´es; plantes supprime´es ou moins abondantes; plantes plus abondantes. Au de´part, les bruˆlis ont virtuellement e´limine´Juniperus communis var. depressa, Empetrum nigrum, Cladina rangiferina, Lycopodium clavatum et Pleurozium schreberi, diminue´la fre´quence de neuf autres espe`ces de 6 a`69 % et accru l'abondance de 13 autres de 1 a`2 050 %. Apre`s les bruˆlis, Polytrichum commune et Fragaria virginiana ssp. glauca ont vu leur population augmenter tre`s rapidement au de´but de l'e´tude pour devenir deux des espe`ces les plus courantes. Outre certains effets initiaux attribuables aux bruˆlis, le bleuet nain et quelques espe`ces de´ja`abondantes (Festuca filiformis, Maianthemum canadense, Danthonia spicata, Cornus canadensis et Luzula multiflora var. acadiensis) ont continue´de figurer parmi les espe`ces dominantes. Sur les espe`ces examine´es, sept seulement des groupes dont les bruˆlis accroissaient ou re´duisaient la population ont e´te´affecte´es par le cycle d'e´lagage et de bruˆlis. Dans ces deux groupes, la plus forte hausse ou baisse d'abondance se produit avec le cycle d'e´lagage-bruˆlis de deux ans.

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Section: Species Whose Frequency Of Occurrence Was Increased Initiallsupporting

confidence: 84%

Effect of long-term burn-pruning on the flora in a lowbush blueberry (Vaccinium angustifolium Ait.) stand

Penney¹,

McRae²,

Rayment³

2008

Can. J. Plant Sci.

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“…Stolons are stems of herbaceous species that grow on or near the surface of the ground, producing plants with roots at the node apex such as a series of strawberry plants (Benson 1957;Welsh and others 1987), and twinflower (McLean 1969). Dormant buds of fireweed and bracken fern are located on roots.…”

Section: Sprouting Of Forbsmentioning

confidence: 99%

“…While the stolons of strawberries make them susceptible to even low severity fire, the deep rhizomes of showy aster allow survival of some plants after fairly severe fires. Lupine and timber milkvetch can regenerate even when the entire plant crown is consumed (McLean 1969). Fireweed and bracken fern can produce significant numbers of sprouts after high severity fires because many buds far below the surface can survive even severe fire treatments (Frye 1934;Moss 1936).…”

Section: Sprouting Of Forbsmentioning

confidence: 99%

Wildland fire in ecosystems: effects of fire on flora

Brown¹,

Smith²

2000

298

156

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_____________________________________This state-of-knowledge review about the effects of fire on flora and fuels can assist land managers with ecosystem and fire management planning and in their efforts to inform others about the ecological role of fire. Chapter topics include fire regime classification, autecological effects of fire, fire regime characteristics and postfire plant community developments in ecosystems throughout the United States and Canada, global climate change, ecological principles of fire regimes, and practical considerations for managing fire in an ecosytem context.

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“…resprouter, Keeley & Zedler, 1978 ;Canadell et al, 1991 ;Keeley & Bond, 1997). The ability of a plant to resprout after fire is generally achieved by the presence of a protected vegetative bud-bank, either by thick bark (Vines, 1968) or burial (McLean, 1968 ;Flinn & Wein, 1977) *Author for correspondence (present address) : Departamento de Biologı! a Vegetal y Ecologı!…”

Section: mentioning

confidence: 99%

Underground starch storage in Erica species of the Cape Floristic Region – differences between seeders and resprouters

1999

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Concentrations of starch in roots of seeder species of Erica from the Cape Floristic Region, South Africa were found to be considerably less than in resprouters. Shoot starch was highly variable but mean values were similar in both seeder and resprouter species of Erica. Three distinct patterns of starch storage in roots were recognized. All seeder species fell within definitions of Categories 1 (narrow major and minor parenchymatous rays, one to two cells wide with no inter-ray storage) or 2 (thick major rays up to seven cells wide and thin minor rays with small amounts of inter-ray storage) whereas resprouter species were consistently within Categories 2 or 3 (broad major and minor rays, up to eight cells wide and conspicuous inter-ray starch storage). Results are discussed in light of similar studies of the related Epacridaceae. ' Mixed ' species (i.e. with seeder or resprouter individuals present, often in distinct populations) were always classified as belonging to Category 2. Studies of populations of three ' mixed ' species confirmed that seeder forms had consistently lower amounts of root starch than resprouters. Rays of xylem parenchyma were the main sites for starch storage in roots of both seeders and resprouters and greater proportions of cross-sectional area of roots were consistently devoted to such storage tissues in resprouter forms of the three ' mixed ' species. Analyses of a number of seeder and resprouter Erica coccinea populations showed that differences in amounts of realised and potential root starch storage are best explained by the effect of regeneration behaviour rather than by among-population variability.

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Fire Resistance of Forest Species as Influenced by Root Systems

Cited by 67 publications

References 4 publications

Effect of long-term burn-pruning on the flora in a lowbush blueberry (Vaccinium angustifolium Ait.) stand

Effect of long-term burn-pruning on the flora in a lowbush blueberry (Vaccinium angustifolium Ait.) stand

Wildland fire in ecosystems: effects of fire on flora

Underground starch storage in Erica species of the Cape Floristic Region – differences between seeders and resprouters

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