scholarly journals Phenological Studies of Some Indigenous Tree Species in the Takamanda National Park, South West Cameroon

2018 ◽  
Vol 16 (3) ◽  
pp. 1-17
Author(s):  
Egbe Enow Andrew ◽  
Njoh Roland Ndah ◽  
Eneke Esoeyang Bechem
2018 ◽  
Vol 9 (1) ◽  
pp. 53-59
Author(s):  
Iwan Hilwan ◽  
Ewi Irfani

Saninten (Castanopsis argantea Blume) known as one of Indonesian indigenous tree species that has high value. Saninten found at Gunung Gede Pangrango National Park especially Resort Selabintana. Saninten produce fruits that can be consumed and wood that can be used as building materials. Regarding these facts, this tree species needs to be cultivated. The distribution pattern of saninten is needed for the right development, but the study about ecology andnatural population of this species is rare and less known. The aim of this research was to asses potential, regeneration and the distribution pattern of saninten. The research used a combination of lanes and line method with counturs cutting. The result showed that distribution of saninten in both location is clumped. Morishita index in lower attitude was 1.68 and in upper attitude was 1.29.Key words: C. argentea, distribution, Resort Selabintana, Taman Nasional Gunung Gede Pangrango


2021 ◽  
Vol 743 (1) ◽  
pp. 012014
Author(s):  
Denny ◽  
T Setyawati ◽  
T Kalima ◽  
M Wardani ◽  
Zuraida ◽  
...  
Keyword(s):  

2018 ◽  
Vol 8 (3) ◽  
pp. 191-196
Author(s):  
Inggar Damayanti ◽  
Iskandar Z. Siregar ◽  
Sri Rahayu

In the tropical rainforests of Jambi, Sumatera, a particular group of epiphytes, species in the genus Hoya, have significant potential to be developed as commercially valuable ornamental plants, because of the uniqueness and beauty of their flowers. Hoya spp. are epiphytic vines whose survival depends largely on the presence of carrier trees, i.e. phorophyte trees. The study reported here was conducted to identify the level of epiphytic association between phorophyte trees and identified Hoya species. The study found four Hoya species, namely: Hoya rintzii, Hoya revoluta, Hoya coronaria, and Hoya cf. caudata. The four species of Hoya were found growing on eleven different species of phorophyte trees. Based on the results of t-contingency tables it was found that there is no association between particular Hoya species and the particular phorophyte tree species. This conclusion was supported by the calculation of Jaccard association indices demonstrating that the association between Hoya spp. and phorophyte tree species is relatively weak. Crown cover and the diameter of the tree are two habitat variables that affect the presence of Hoya revoluta at the sites. The presence of Hoya caudata was influenced by the variable temperature, while the presence of Hoya coronaria was associated with humidity, but the degree of association was relatively weak. The most significant variables affecting the presence of Hoya rintzii were tree height and elevation.Key word: association, ephyphites, Hoya spp, phorophyte.


Koedoe ◽  
1977 ◽  
Vol 20 (1) ◽  
Author(s):  
U. de V. Pienaar

During a visit (1977.01.28) to the Augrabies Falls National Park, Republic of South Africa, a heavy shower of rain brought relief to prevailing hot, dry conditions. A specimen of the rare South West African Red banded Frog Phrynomerus annectens (Werner) was collected that evening, on the lawn of the administration block.


2020 ◽  
Vol 21 (7) ◽  
Author(s):  
ARIDA SUSILOWATI ◽  
DENI ELFIATI ◽  
HENTI HENDALSTUTI RACHMAT ◽  
KUSUMADEWI SRI YULITA ◽  
ADI NURUL HADI ◽  
...  

Abstract. Susilowati A, Elfiati D, Rachmat HH, Yulita KS, Hadi AN, Kusuma YS, Batu SAL. 2020. Vegetation structure and floristic composition of tree species in the habitat of Scaphium macropodum in Gunung Leuser National Park, Sumatra, Indonesia. Biodiversitas 21: 3025-3033. Scaphium macropodum (Miq.) Beumee Ex K Heyne is a member of Malvaceae tree species and globally recognized as malva nut and locally known as ‘kembang semangkok’, ‘tempayang’, ‘merpayang’ or ‘kepayang’. The nut of S. macropodum has many benefits for medicinal purposes, yet destructive extraction of this tree species has led them to extinction. Among its natural distribution in Indonesia, North Sumatra Province, Indonesia is known as its original range, but there is limited information about the existence of this species. This study aimed to determine the vegetation structure of some tree species in the habitat of S. macropodum in Sikundur, Gunung Leuser National Park, Sumatra, Indonesia. Purposive sampling technique was employed by creating line transect at some forest areas where the population of S. macropodum is known to grow naturally. Four line transects with each transect consisting of five plots with nested plots within were established to record data at four growth stages, resulting in 80 plots in total. The results showed that the Important Value Index (IVI) of S. macropodum within the floristic community at the studied area was 21.98, 13.85, 27.30, and 39.60 for tree, pole, sapling, and seedlings stages, respectively. The Shannon-Wiener Diversity Index (H) were 3.80, 3.70, 3.06 and 2.45, Index of evenness (E) are 0.94, 0.92, 0.86, 0.77 and the Index of Richness (R) are 11.76, 10.73, 6.59, 4.10 for tree, pole, sapling, and seedlings stages. This result suggests that the natural population of S. macropodum in Sikundur forest was still in good condition at all stages from tree to seedling.


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