Compositional decoupling of savanna canopy and understory tree communities in Serengeti

2014 ◽  
Vol 26 (2) ◽  
pp. 385-394 ◽  
Author(s):  
T. Michael Anderson ◽  
Thomas Morrison ◽  
Deusdedith Rugemalila ◽  
Ricardo Holdo
Keyword(s):  
Tree Communities ◽  
Understory Tree

Floristic Variation of Tree Communities and Their Association with Soil Properties in Pulau Jerejak, Penang, Peninsular Malaysia

2020 ◽  
Vol 14 (1) ◽  
pp. 34
Author(s):  
Faezah Pardi
Keyword(s):  
Tree Species ◽  
Diversity Index ◽  
Basal Area ◽  
Peninsular Malaysia ◽  
Importance Value ◽  
Conservation Action ◽  
Endangered Tree ◽  
Endangered Tree Species ◽  
Tree Communities ◽  
Floristic Variation

This study was conducted at Pulau Jerejak, Penang to determine the floristic variation of its tree communities. A 0.5-hectare study plot was established and divided into 11 subplots. A total of 587 trees with diameter at breast height (DBH) of 5 cm and above were measured, identified and recorded. The tree communities comprised of 84 species, 63 genera and 32 families. The Myrtaceae was the most speciose family with 10 recorded species while Syzgium glaucum (Myrtaceae) was the most frequent species. The Myrtaceae recorded the highest density of 306 individuals while Syzgium glaucum (Myrtaceae) had the highest species density of 182 individuals. Total tree basal area (BA) was 21.47 m2/ha and family with the highest BA was Myrtaceae with 5.81 m2/ha while at species level, Syzgium glaucum (Myrtaceae) was the species with the highest total BA in the plot with value of 4.95 m2/ha. The Shannon˗Weiner Diversity Index of tree communities showed a value of 3.60 (H'max = 4.43) and Evenness Index of 0.81 which indicates high uniformity of tree species. The Margalef Richness Index (R') revealed that the tree species richness was 13.02. Myrtaceae had the highest Importance Value of 20.4%. The Canonical Correspondence Analysis (CCA) showed that Diospyros buxifolia (Ebenaceae) and Pouteria malaccensis (Sapotaceae) were strongly correlated to low pH. Dysoxylum cauliflorum (Meliaceae) and Eriobotrya bengalensis (Rosaceae) were correlated to phosphorus (P) and calcium ion (Ca2+), respectively. Therefore, the trees species composition at Pulau Jerejak showed that the biodiversity is high and conservation action should be implemented to protect endangered tree species. Keywords: Floristic variation; Tree communities; Trees composition; Pulau Jerejak; Species diversity

scholarly journals Life‐history dimensions indicate non‐random assembly processes in tropical island tree communities

Ecography ◽  
2020 ◽  
Author(s):  
Julian Schrader ◽  
Dylan Craven ◽  
Cornelia Sattler ◽  
Rodrigo Cámara‐Leret ◽  
Soetjipto Moeljono ◽  
...  
Keyword(s):  
Life History ◽  
Tropical Island ◽  
Tree Communities

Enhanced light interception and light use efficiency explain overyielding in young tree communities

2021 ◽  
Author(s):  
Laura J. Williams ◽  
Ethan E. Butler ◽  
Jeannine Cavender‐Bares ◽  
Artur Stefanski ◽  
Karen E. Rice ◽  
...  
Keyword(s):  
Light Interception ◽  
Light Use Efficiency ◽  
Young Tree ◽  
Tree Communities ◽  
Use Efficiency

The composition of Amazonian forests: patterns at local and regional scales

1998 ◽  
Vol 14 (5) ◽  
pp. 645-664 ◽  
Author(s):  
John Terborgh ◽  
Ellen Andresen
Keyword(s):  
Detrended Correspondence Analysis ◽  
Forest Composition ◽  
Level Data ◽  
Tree Communities ◽  
Floristic Patterns ◽  
Edaphic Properties ◽  
Number Of Stems ◽  
Amazonian Forests ◽  
Amazonian Region ◽  
The Guianas

An analysis was conducted of floristic patterns contained in 48 1-ha tree plots distributed at 29 sites in seven neotropical countries, with a primary emphasis on the Amazonian region. Analyses were made with family level data, using detrended correspondence analysis and multidimensional scaling to generate two-dimensional ordinations. Dissimilarity values for all pairs of plots were then used to compare forest composition at both local (flooded vs unflooded forests) and regional scales (e.g., western vs central vs eastern Amazonia). The predominate family of trees in a large majority of Amazonian and Guianan forests (by number of stems) is either Palmae or Leguminosae (sensu latu), followed by Moraceae and Euphorbiaceae. The forests of western Amazonia are particularly rich in palms, Moraceae, and Myristicaceae, whereas those of eastern Amazonia and the Guianas are rich in Lecythidaceae and Chrysobalanaceae. Dissimilarity between sites increases with distance for both flooded and unflooded forests. The tree communities of flooded and unflooded forests within a region tended to resemble one another more closely than forests of either type resembled the homologous forests of the adjoining regions. Within Amazonia the edaphic properties of each region and its geological history are tightly interrelated. It is therefore difficult to distinguish between evolutionary and ecological interpretations of the results.

Using functional traits and phylogenetic trees to examine the assembly of tropical tree communities

2012 ◽  
Vol 100 (3) ◽  
pp. 690-701 ◽  
Author(s):  
Christopher Baraloto ◽  
Olivier J. Hardy ◽  
C. E. Timothy Paine ◽  
Kyle G. Dexter ◽  
Corinne Cruaud ◽  
...  
Keyword(s):  
Functional Traits ◽  
Phylogenetic Trees ◽  
Tropical Tree ◽  
Tree Communities

scholarly journals Phylogenetic and functional alpha and beta diversity in temperate and tropical tree communities

Ecology ◽  
2012 ◽  
Vol 93 (sp8) ◽  
pp. S112-S125 ◽  
Author(s):  
Nathan G. Swenson ◽  
David L. Erickson ◽  
Xiangcheng Mi ◽  
Norman A. Bourg ◽  
Jimena Forero-Montaña ◽  
...  
Keyword(s):  
Beta Diversity ◽  
Tropical Tree ◽  
Alpha And Beta Diversity ◽  
Tree Communities
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