Spatial patterns of plant species richness along a forest edge: What are their determinants?

Marchand, Pascal; Houle, Gilles

doi:10.1016/j.foreco.2005.10.064

Cited by 65 publications

(43 citation statements)

References 46 publications

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“…Species richness increased near the forest edge, as found by Marchand and Houle (2006). First-year seedling density increased with distance from the edge, as has been found in other temperate forests (Goldblum and Beatty, 1999).…”

Section: Spatial Pattern According To the Distance From The Forest Edgesupporting

confidence: 76%

“…This is an important intra-forest factor, which has been previously shown to influence the spatial pattern of seedlings and saplings in fragmented forests (Gehlhausen et al, 2000;Hewitt and Kellman, 2004;Matlack, 1993;Ranney et al, 1981). Opposed spatial patterns for successional groups according to the distance from the edge have been observed: "early successional species or disturbancetolerant (shade-intolerant) species have higher seedling densities at the forest edge, while the seedling densities of "interior" species (shade-tolerant) abruptly diminish near the edge" (Marchand and Houle, 2006). This study aims: (i) to identify which woody species were able to establish themselves under closed canopy of coppice forests; and (ii) to evaluate the influences of canopy composition and of distance to the nearest forest edge on the abundance and species richness of the seedling bank, according to different ecological groups of seedlings (age, successional status and dispersal vector).…”

Section: Introductionmentioning

confidence: 91%

“…3), which showed opposite trends, are consistent with these results. However, Marchand and Houle (2006) have recently shown, for a shade tolerant species, how this pattern could be inverted for a closed edge. This observation underlines the crucial importance of edge structure on edge influence (Harper et al, 2005).…”

Section: Spatial Pattern According To the Distance From The Forest Edgementioning

confidence: 99%

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Diversity of woody plant seedling banks under closed canopy in fragmented coppice forests

et al. 2008

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-• Seedling banks of woody species established under closed canopy have received little consideration in coppice forests despite their potential importance for natural regeneration.• This study aimed to evaluate the influences of canopy composition and of distance from the nearest forest edge on the abundance and species richness of the seedling bank, for different ecological groups of seedlings (age, successional status and dispersal vector) in 68 fragmented coppice stands.• Seedlings were found in 67 stands, with 19 species identified. Eight species present as older seedlings were lacking as first-year old seedlings, suggesting temporal variability of species recruitment. Seedling abundances of species with low-dispersal ability were positively correlated with the abundances of their conspecific adults. Seedling abundance of mid-successional species was negatively correlated with the distance from the nearest forest edge, while mid-to-late successional species seedling abundance presented the opposite pattern.• Our results showed that woody species were able to establish frequently under closed canopy in these fragmented coppices and form a seedling bank which may be used for natural regeneration.woody seedling bank / Quercus spp. / forest edge / Southwest France / coppices Résumé -Une banque de semis diversifiée sous canopée fermée dans des taillis fragmentés.• Peu d'études ont porté sur les banques de semis de ligneux installés sous canopée fermée dans des taillis, malgré leur importance potentielle pour la régénération naturelle.• Nous avons exploré le lien entre l'abondance et la richesse des semis de ligneux, et la composition de la canopée et la distance à la lisière la plus proche, dans 68 peuplements gérés en taillis. Les semis ont été regroupés en fonction de leur âge, et les espèces en fonction de leur mode de dispersion et de leur place a priori dans la succession forestière.• Nous avons trouvé des semis dans 67 peuplements, appartenant à 19 espèces distinctes. Huit espèces présentes sous forme de semis plus âgés, manquent sous forme de semis de l'année, suggérant une variabilité temporelle du recrutement des espèces. L'abondance des semis des espèces à dispersion limitée est corrélée à celle des adultes. L'abondance des semis des espèces post-pionnières nomades, capable de s'installer en pleine lumière, est négativement corrélée à la distance à la lisière, tandis que celle des semis des espèces post-pionnières, plus sciaphiles présente le patron opposé.• Nos résultats indiquent que plusieurs espèces de plantes ligneuses sont capables de s'établir fréquemment sous canopée fermée dans ces taillis fragmentés, formant ainsi une banque de semis potentiellement utilisable pour la régénération naturelle de ces forêts. banque de semis de plantes ligneuses / Quercus spp. / lisière forestière / Sud-Ouest de la France / taillis

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Section: Spatial Pattern According To the Distance From The Forest Edgesupporting

confidence: 76%

Section: Introductionmentioning

confidence: 91%

Section: Spatial Pattern According To the Distance From The Forest Edgementioning

confidence: 99%

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Diversity of woody plant seedling banks under closed canopy in fragmented coppice forests

et al. 2008

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“…Depending on the abiotic variable-of-interest, the edge influence can extend into the forest for just a few metres or up to two hundred meters (Murcia 1995;Davies-Colley et al 2000;Honnay et al 2002;Harper et al 2005;Marchand and Houle 2006). However, most study designs on edge effects have been restricted to small spatial scales and thus capture edge effects over relatively small spatial scales of only 20-250 m (Ewers and Didham 2008).…”

Section: Introductionmentioning

confidence: 99%

Unexpected long-range edge-to-forest interior environmental gradients

Bergès¹,

Pellissier

Avon³

et al. 2013

Landscape Ecol

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We examined the relationships between distance-to-edge and environmental factors inferred from mean plant indicator values across large distance-to-edge and patch size gradients.Floristic composition, landscape metrics and site variables (climate, soil and forest management) were collected on 19989 plots in 1801 forest patches in Northern France using the French National Forest Inventory. Statistical models were applied to mean plant indicator values (MIV) from Ellenberg and Ecoplant databases for soil pH, soil nitrogen (N), soil humidity (F), light (L) and air temperature (Ta) using distance-to-edge and forest patch size as predictors. The five mean indicator values significantly varied with distance-to-edge and MIV.pH, N and Ta decreased over distances in excess of 500 m. Consistent very long edgeto-interior gradients were also detected for site variables. The distance-to-edge effect remained significant after controlling for site differences, especially for MIV.pH and N.Significant edge-to-core gradients of MIV were detected over much larger ranges than previously recognised. Neither the presence of an ecological boundary between forest and the surrounding matrix, nor microclimate, soil or forest management heterogeneity within forest patches can fully explain this long edge-to-interior gradient observed in MIV. Two hypotheses are discussed for MIV.pH and N: (1) soil eutrophication, due to atmospheric N deposition, which could occur deeper into forest cores than previously acknowledged; (2) land-use legacies, as the periphery of ancient forests is more often occupied by recent forests where former agricultural practices have irreversibly modified topsoil properties. Land use history data would help identify the drivers underlying these long-range edge gradients.

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“…Both fragmentation and decreases in forest area have caused serious losses of biological diversity (Sole et al 2004, Bailey 2007, Conceicao and Oliveira 2010. The forest edge is the line dividing edge interior and edge exterior, and the str ucture and species composition differs between the interior and exterior of the forest edge (Thomas et al 1979, Oosterhoorn and Kappelle 2000, Lopez-Barrera et al 2006, Marchand and Houle 2006, which increases with increasing fragmentation. Vegetation at the forest edge interior consists mainly of secondar y shr ub and tree species; edge ef fects are sometimes expressed as a reduction in canopy height and an increase in subcanopy stature from the forest interior towards the edge (Oosterhoorn and Kappelle 2000).…”

Section: Introductionmentioning

confidence: 99%

Colonization of tree species along an interior-exterior gradient across the forest edge in a tropical montane forest, northwest Thailand

Asanok

Marod

Pattanavibool³

et al. 2012

Tropics

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We investigated the environmental factors and tree species characteristics that are important for colonization of an interior-exterior gradient across the forest edge, for application to the restoration of abandoned shifting-cultivation areas in tropical montane forests in the Umphang Wildlife Sanctuar y, nor thwest Thailand. The relative impor tance of physical environment and recruit limitation was evaluated in relation to the regeneration traits of tree species. Three belt transect plots (150 m x 20 m) were established at the transition from secondary forest (edge interior) to open areas (edge exterior) of different ages (1, 3, and 5 years) after abandonment of shifting cultivation. We also set three belts (20 m x 50 m each) in a primary forest remnant. The species composition of canopy trees, regenerated seedlings, and saplings was studied, together with aspects of the physical environment. We found that it was difficult for primary forest species to effectively colonize the forest edge exterior, mostly due to recruitment limitations rather than the physical environment. Many of secondary forest species and generalists were also affected by recruitment limitation (significant negative correlation with the distance from forest edge), though they were also affected by factors related to the physical environment and forest structure and more abundant in open area. Only a few species, like Choerospondias axillaris (primary forest species), Wendlandia tinctoria (secondary forest species), Colona elobata, and Ficus hispida (generalist species) did not suggest recruitment limitation. These results suggested that natural regeneration of secondary forest and generalist species could be utilized as a first step in restoration expecting their facilitation effects for primary forest species.

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Spatial patterns of plant species richness along a forest edge: What are their determinants?

Cited by 65 publications

References 46 publications

Diversity of woody plant seedling banks under closed canopy in fragmented coppice forests

Diversity of woody plant seedling banks under closed canopy in fragmented coppice forests

Unexpected long-range edge-to-forest interior environmental gradients

Colonization of tree species along an interior-exterior gradient across the forest edge in a tropical montane forest, northwest Thailand

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