Long-term changes in forest composition and diversity following early logging (1919–1923) and the decline of American chestnut (Castanea dentata)

Elliott, Katherine J.; Swank, Wayne T.

doi:10.1007/s11258-007-9352-3

Cited by 153 publications

(127 citation statements)

References 51 publications

Supporting

Mentioning

125

Contrasting

Order By: Relevance

“…Fungi with harmless endophytic or symbiotic relationships with their co-evolved hosts may behave as severe pathogens in contact with evolutionary naïve hosts in introduced areas (Boyd et al 2013;Brasier 2008;Lovett et al 2006;Roy et al 2014;Santini et al 2013;Stukenbrock and McDonald 2008). Examples of pandemics caused by introduced fungi on keystone forest tree species include Chestnut blight (Elliott and Swank 2008) and Dutch elm disease (Brasier 2000).…”

Section: Introductionmentioning

confidence: 99%

The susceptibility of Asian, European and North American Fraxinus species to the ash dieback pathogen Hymenoscyphus fraxineus reflects their phylogenetic history

et al. 2016

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

The susceptibility of Asian, European and North American Fraxinus species to the ash dieback pathogen Hymenoscyphus fraxineus reflects their phylogenetic history

et al. 2016

View full text Add to dashboard Cite

show abstract

“…A more negative value for T indicates a stronger separation between groups (Elliott & Swank, 2008). The Sørenson (Bray-Curtis) index was used as a distance measure for the MRPP analysis.…”

Section: Discussionmentioning

confidence: 99%

Impact of Cardamom Cultivation on the Composition and Dynamics of Soil Seed Banks in a Conservation Forest in Sri Lanka: Implications for Conservation

Dhakal¹

2017

OJF

View full text Add to dashboard Cite

Cultivation of cash crops, such as cardamom (Elettaria cardamomum) in the forest understorey is a common practice in many tropical forests. Over time, cultivation may change forest structure and species composition, leading to gradual degradation of biodiversity and ecosystem services. Effective conservation of these forests requires an enhanced understanding of the demographic processes such as soil seed bank that may greatly influence future forest composition. We examined how the soil seed bank structure and composition responds to cardamom cultivation in a high conservation value Sri Lankan montane rain forest. Soil samples from natural forest with abandoned cardamom plantations (CP) and adjacent natural forest (NF) patches without cardamom were collected in dry and wet seasons. Soil samples were spread out in trays in a shade house and germination was recorded weekly for 19 weeks. The density of seeds in the soil seed bank was much higher in CP than NF. While grasses and forbs contributed the highest number and percentage of seeds in soils of both forest types, their densities in the soil seed bank were 9 and 2 times greater in the CP than the NF, respectively. Seeds of the nonnative herbs Ageratina riparia and E. cardamomum were 4 and 20 times greater in the soil of CP, respectively. Seeds of light demanding tree species such as

show abstract

“…Different dimension reduction (ordination) techniques are commonly utilized to analyze multiple species in a community; these approaches include principal component analysis (PCA -Sagar et al 2003, Heiri et al 2009), correspondence analysis (CA - Pallardy et al 1988, Donnegan & Rebertus 1999, Woods 2000a, 2000b, and non-metric multidimensional scaling (NMDS -Philippi et al 1998, De Grandpre et al 2000, Woods 2000a, Schuler 2004, Lawrence et al 2005, Elliott & Swank 2008, Fule et al 2009). These techniques have been widely applied in community ecology, for which data are often characterized by scarcity (many zero values - Legendre & Legendre 1998).…”

Section: Introductionmentioning

confidence: 99%

“…In these cases, it is desirable to use all of the information available in the data, i.e., to use linear modeling, which can more powerfully explain community composition, dynamics, and species interactions (Billheimer et al 2001). Past studies utilized linear models to study shifts in dominant species composition, and each species was separately analyzed with repeated ANOVA or paired t-tests preceded by an arcsin square root transform of percentage data (Pallardy et al 1988, Elliott & Swank 2008, Pinto et al 2008). As will be discussed, the forest species composition is compositional by nature and demands an approach specific to these data.…”

Section: Introductionmentioning

confidence: 99%

Temporal changes of forest species composition studied by compositional data approach

Kobal¹,

Kastelec²,

Eler³

2017

iForest

View full text Add to dashboard Cite

Many ecological data are compositional and different quantitative techniqueshave been used to analyze such data, albeit some of them being methodologically wrong. The aim of this contribution is to apply the compositional data approach to forestry data and demonstrate the strengths of this method for percentage or relative data with infrequent zero values. Basal areas of three dominant tree species (Abies alba, Picea abies, Fagus sylvatica) in 119 forest compartments in some of the Omphalodo-Fagetum forests in Slovenia in 1954 and 2004 were used to investigate the dynamics of forest species composition over a 50-year period. For the investigated period some additional data about geomorphology and harvesting rates within the compartments were used as explanatory variables of compositional change. The species composition of each forest compartment was subjected to several methods within a compositional analysis framework: descriptive, ternary diagram-based graphical presentations, significance of compositional differences between management classes, significance of perturbation differences (the indicator of forest compositional change) and relation of the compositional change with the explanatory variables by means of compositional linear model. Results indicated that the silver fir was the dominant species in both years, but a clear reduction in silver fir proportion was observed after 50 years. The perturbation differences indicated comparatively large relative increase in the proportion of Norway spruce between 1954 and 2004. Subsequently, the perturbation differences were subjected to isometric log-transformation (ilr) and two derived ilr coordinates were further used as dependent variables in the multivariate linear model. The initial stand structure correlated well with the perturbation differences. These were also significantly correlations with salvage cutting, a consequence of silver fir decline in the 1954-2004 period. This study demonstrated that the compositional data approach can be successfully used to study forest dynamics yielding some insights into data which are not possible or even not valid using some alternative methods.

show abstract

Long-term changes in forest composition and diversity following early logging (1919–1923) and the decline of American chestnut (Castanea dentata)

Cited by 153 publications

References 51 publications

The susceptibility of Asian, European and North American Fraxinus species to the ash dieback pathogen Hymenoscyphus fraxineus reflects their phylogenetic history

The susceptibility of Asian, European and North American Fraxinus species to the ash dieback pathogen Hymenoscyphus fraxineus reflects their phylogenetic history

Impact of Cardamom Cultivation on the Composition and Dynamics of Soil Seed Banks in a Conservation Forest in Sri Lanka: Implications for Conservation

Temporal changes of forest species composition studied by compositional data approach

Contact Info

Product

Resources

About