Factors influencing the floristic composition of a hill forest in West Sumatra

Nishimura, Shigehiro; Yoneda, Tsuyoshi; Fujii, Satoshi; Mukhtar, Erizal; Abe, Hisashi; Kanzaki, Mamoru

doi:10.3759/tropics.15.165

Cited by 8 publications

(8 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Detailed description of the vegetation and topography of the site is presented in Nishimura et al . (2006a).…”

Section: Methodsmentioning

confidence: 99%

“…The species number, abundance and basal area dominance of this family ranked sixth, sixth and first, respectively, out of 64 families in the 6.55-ha plot (Nishimura et al . 2006a). At least 23 Fagaceae species grew in the plot.…”

Section: Methodsmentioning

confidence: 99%

“…2006, Nishimura et al . 2006a, b). This study aimed to elucidate factors determining the coexistence of species of Fagaceae in a mid-elevation hill dipterocarp forest in Ulu Gadut, Sumatra.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Spatial patterns and habitat associations of Fagaceae in a hill dipterocarp forest in Ulu Gadut, West Sumatra

et al. 2008

Self Cite

View full text Add to dashboard Cite

Abstract:Spatial distribution patterns and habitat associations of Fagaceae species in a Fagaceae-codominated hill forest in Sumatra were investigated. Ten Fagaceae species believed to be zoochorous (animal-dispersed seed) and five codominant canopy and emergent anemochorous (wind-dispersed seed) species from Anacardiaceae and Dipterocarpaceae were studied. Five Fagaceae species and all codominant anemochorous species were significantly aggregated while the other five Fagaceae species showed a random distribution pattern. The median distance of small saplings from the nearest reproductively mature tree tended to be shorter for aggregated species than spatially random species. This implied that some Fagaceae species dispersed over longer distances than anemochorous species. Relationships between four habitat variables and distribution of the target species were examined with torus-translation tests. ThreeQuercusand oneLithocarpusspecies showed positive habitat associations. TwoQuercusspecies aggregated at the preferred habitat, but the others were randomly distributed. Thus tree species with specific habitat preference do not only aggregate at the preferred habitat. The three ridge-specialistQuercusspecies showed gradual changes in habitat association, which could reflect avoidance of competition among the species. Most of theLithocarpusspecies showed little correlation with habitat variables. Coexistence of the threeQuercusspecies partly reflected subtle differences in topographical preferences. Distribution of five of the sixLithocarpusspecies was unrelated to topography, so other mechanisms must be sought to account for the maintenance of coexistence in this species-rich genus.

show abstract

“…Detailed description of the vegetation and topography of the site is presented in Nishimura et al . (2006a).…”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Spatial patterns and habitat associations of Fagaceae in a hill dipterocarp forest in Ulu Gadut, West Sumatra

et al. 2008

Self Cite

View full text Add to dashboard Cite

show abstract

“…PS was a mixed dipterocarp forest, and sampling was conducted at a forest stand in an alluvial community (Davies et al 2003) using a 50-ha plot. UG was part of a 6.55-ha permanent plot codominated by Fagaceae and Dipterocarpaceae (Nishimura et al 2006(Nishimura et al , 2008. Overstory vegetation at TP was characterized by high dominace of Fagaceae (Castanopsis sieboldii and Quercus miyagii), and the understory species included many tropical elements (Nishi, 2005;Yoneda, 2016aYoneda, , 2016b.…”

Section: Study Sitesmentioning

confidence: 99%

Spatial variations in the decay coefficients of forest ecosystems in East and Southeast Asia

Yoneda

Mizunaga

Okuda

et al. 2019

Tropics

Self Cite

View full text Add to dashboard Cite

We assessed spatial variation in the decay coefficients of fine wood litter on the forest floor in four forest formations in East and Southeast Asia. We used a novel approach to incorporate fragmentation loss in the decomposition process within four plots, each several hectares in area. The spatial patterns showed significant correlations with some biotic, edaphic, topographic, and climatic factors. Variation in the lowland tropical rainforest was driven largely by the feeding behaviors of termites. Variation in the hill dipterocarp forest exhibited no clear correlations with topographic parameters due to complementarity of decay activities by fungi and termites through segregation of their habitat between concave and convex sites, respectively. The subtropical rainforest showed variations associated with habitats distinguished by understory communities, reflecting edaphic conditions. Variation in the warm-temperate lucidophyll forest showed a clear negative correlation with slope convexity. The maximum area of spatial autocorrelation for the decay coefficient was used as the unit area for identification of significant relationships between decay coefficients and net primary productivity for aboveground coarse woody organs in terms of spatial variations, except in the subtropical forest plot. The ecological features of the four research plots were assessed based on spatial variation in structural and functional parameters over the unit areas or among the understory communities. Our results imply that 1) the positive correlations between decay coefficients and net primary productivity in two plots in a tropical zone were realized by spatial properties of the death rates of trees being higher or even at sites with higher decay coefficients and 2) the negative correlations in two plots in subtropical and warm-temperate zones were maintained by increasing the death rates on convex sites through frequent disturbance by typhoons. Inter-and intrasite variations in decay coefficients were evaluated using a probability density function of two-dimensional standard normal distributions regressed from data collected in the study area.

show abstract

“…In this area, no particular species is outstandingly dominant. In terms of basal area, the five dominant families are the Fagaceae, Euphorbiaceae, Moraceae, Sapindaceae and Dipterocarpaceae (Nishimura et al 2006). This forest stand has been damaged by small-scale hand logging, which is one of the reasons why dipterocarps are not dominant in the forest.…”

mentioning

confidence: 99%

Sprouting traits of Fagaceae species in a hill dipterocarp forest, Ulu Gadut, West Sumatra

et al. 2010

Self Cite

View full text Add to dashboard Cite

The size distribution of a tree species gives important information about its regeneration strategy. For example, a tree species that regenerates primarily by sprouting will, in theory, have fewer seedlings than species that regenerate from seedlings, which generally form an L-shaped population size structure because of trade-offs in resource allocation between vegetative sprouting and sexual reproduction (Bellingham & Sparrow 2000, Loehle 2000). The results of some field studies suggest that the number of seedlings decreases with increasing dominance of multi-stemmed sprouters (Krugeret al. 1997, Zimmermanet al. 1994). In their study of four co-occurring species ofCastanopsis(Fagaceae), Nanamiet al. (2004) showed that species with a high frequency of sprouting adults had fewer juveniles and vice versa. This suggested that these species were able to co-exist as a result of trade-offs between investment in seedlings and sprouting. In this study, we investigated the sprouting trait of 17 co-occurring Fagaceae species in a Sumatran hill forest. The forest stand at this site shows a varied population structure across species, and hence, should have a varied life history. We tested the correlation between population skewness and proportion of sprouting trees, following the methods of Nanamiet al. (2004). We hypothesized that the species that frequently form multi-stemmed sprouts will show a lower turnover of individuals because multi-stemmed architecture favours persistence (Bellingham & Sparrow 2009).

show abstract

Factors influencing the floristic composition of a hill forest in West Sumatra

Abstract: The

Cited by 8 publications

References 18 publications

Spatial patterns and habitat associations of Fagaceae in a hill dipterocarp forest in Ulu Gadut, West Sumatra

Spatial patterns and habitat associations of Fagaceae in a hill dipterocarp forest in Ulu Gadut, West Sumatra

Spatial variations in the decay coefficients of forest ecosystems in East and Southeast Asia

Sprouting traits of Fagaceae species in a hill dipterocarp forest, Ulu Gadut, West Sumatra

Contact Info

Product

Resources

About