A comparative study of regeneration under live and dead canopy trees in a tropical rain forest ecosystem of Kibale National Park, Uganda

2007 ◽  
Vol 45 (s3) ◽  
pp. 11-17 ◽  
Author(s):  
James Kalema ◽  
John Massan Kasenene
Keyword(s):  
Comparative Study ◽  
Forest Ecosystem ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
National Park ◽  
Kibale National Park ◽  
Canopy Trees

scholarly journals Keanekaragaman JenisTumbuhan Paku (Pteridophyta) di Jalur Pendakian Selo Kawasan Taman Nasional Gunung Merbabu, Jawa Tengah

2017 ◽  
Vol 19 (2) ◽  
pp. 119
Author(s):  
Fitri Kusuma Astuti ◽  
M Murningsih ◽  
J Jumari
Keyword(s):  
Forest Ecosystem ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
National Park ◽  
Diversity Index ◽  
High Mountains ◽  
Key Word ◽  
Low Diversity ◽  
The Many ◽  
Very High

Indonesia has a very high biodiversity, as well as ferns (Pteridophyta).Selo climbing lane at Merbabu Montain Nasional Park selected as the study site because of the many ferns that were founded in this area.The purpose of this study was to analyze the diversity of ferns species.in tropical rain forest ecosystem of high mountains and sub-alpine forests ecosystem on Selo climbing lane at Merbabu Mount National Park. There are many human activity in Selo climbing lanesupposed to influence the existing plants. This research was held on August-December 2016. The method usedinventory inSelo climbing lane and Plot, then analyzed using diversity index. The results found 33 species of ferns from 15 families. The diversity of ferns in the tropical rain forest ecosystem of high mountains fall into the medium category except at post II (2412 masl) has low diversity. Diversity in the sub-alpine forest ecosystem can not be calculated. Key word: diversity, fern, Selo climbing lane

scholarly journals THE LICHENS DIVERSITY IN TRIANGULATION OF ALAS PURWO NATIONAL PARK, EAST JAVA

2015 ◽  
Vol 2 (1) ◽  
pp. 265
Author(s):  
Iin Supartinah Noer ◽  
Joko Kusmoro ◽  
Erwan Yudiar Darussalam ◽  
Dwi Nur Laksono ◽  
Aan Abdul Hakim
Keyword(s):  
Forest Ecosystem ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
National Park ◽  
Cloud Forest ◽  
Usnic Acid ◽  
Lowland Rain Forest ◽  
Tropical Lowland ◽  
Green Algal ◽  
Lowland Tropical Rain Forest

<p>The lichen flora of tropical areas is still much underworked Java in general and Alas Purwo in East Java for specially is no exception. Alas Purwo National Park is representative of a typical lowland tropical rain forest ecosystem in Java. . It is famous with peculiar and endemic species of plant include sawo kecik (Manilkara kauki) and manggong bamboo (Gigantochloa manggong). , beside among the other plants also ketapang (Terminalia cattapa), nyamplung (Calophyllum inophyllum), kepuh (Sterculia foetida), and keben (Barringtonia asiatica). Moreover, in lowland tropical rain forest ecosystem have reported the lichens species diversity is very high and may include over 200 species in 1 ha. There is no reported have found concerning the lichens richness in Alas Purwo. Recently preliminary study of Lichens diversity have been done at triangulation Zone Alas Purwo National Park , East Java. The lichens of the study area have not been treated comprehensively. We explored the lichenological characteristics of putative”tropical lowland cloud forest” (LCF) in a lowland area (0–20ma.s.l.) near Triangulation using macrolichens (cortocoulous species) as indicator taxa We analyzed lichen diversity on 20 trees in two 0,25 ha plots. In tropical lowland forests, corticolous green algal lichens are abundant and highly diverse. This may be related to adaptation to prevailing microenvironmental conditions including, for example, high precipitation and low light intensities. In the understory of a tropical lowland rain forest in Alas Purwo , we studied the morphology and anatomy of corticolous lichens and microcristal test. We found that from Tetrasigma sp , Serbella otodans, Hemandia feltata Baringtonia aciatika Pandanaceae Manilcara cauci Swetinia mahagoni trees there are 30 species of lichens, dominated by Dyorigma sp Graphis and Glyphis from familia of Graphidaceae and Dirinaria Physcia Pyxine Ramalina from familia of Parmeliaceae. The thallus calour was variety from Green-grey, Green-bllue, green, light green, grey, brown, dark green to orange. They have vegetative as wel as generative reproduction such as isidia, soralia, soredia, chypellae, histerothecia, perithecia,and apothecia. The lichenic acids contain such as gyrophoric acid, barbatic acid, usnic acid, atranorin, acid, divaricatic acid and lecanoric acid, </p><p><strong>Keywords</strong>: Alas Purwo, lichens and lichenic acid.</p>

scholarly journals Keanekaragaman Jenis Tumbuhan Paku (Pteridophyta) di Jalur Pendakian Selo Kawasan Taman Nasional Gunung Merbabu, Jawa Tengah

2018 ◽  
Vol 20 (1) ◽  
pp. 25
Author(s):  
Fitri Kusuma Astuti ◽  
M Murningsih ◽  
J Jumari
Keyword(s):  
Forest Ecosystem ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
National Park ◽  
Diversity Index ◽  
High Mountains ◽  
Key Word ◽  
Low Diversity ◽  
The Many ◽  
Very High

Indonesia has a very high biodiversity, as well as ferns (Pteridophyta).Selo climbing lane at Merbabu Montain Nasional Park selected as the study site because of the many ferns that were founded in this area.The purpose of this study was to analyze the diversity of ferns species.in tropical rain forest ecosystem of high mountains and sub-alpine forests ecosystem on Selo climbing lane at Merbabu Mount National Park. There are many human activity in Selo climbing lanesupposed to influence the existing plants. This research was held on August-December 2016. The method usedinventory inSelo climbing lane and Plot, then analyzed using diversity index. The results found 33 species of ferns from 15 families. The diversity of ferns in the tropical rain forest ecosystem of high mountains fall into the medium category except at post II (2412 masl) has low diversity. Diversity in the sub-alpine forest ecosystem can not be calculated. Key word: diversity, fern, Selo climbing lane.

Buttress formation and directional stress experienced during critical phases of tree development

1998 ◽  
Vol 14 (3) ◽  
pp. 341-349 ◽  
Author(s):  
COLIN A. CHAPMAN ◽  
LES KAUFMAN ◽  
LAUREN J. CHAPMAN
Keyword(s):  
National Park ◽  
Tropical Trees ◽  
Selective Logging ◽  
Tree Size ◽  
Kibale National Park ◽  
Mechanical Support ◽  
Single Family ◽  
Canopy Trees ◽  
Critical Phases ◽  
Tree Development

Patterns of buttress formation in tropical trees vary greatly within and among species. In Kibale National Park, Uganda, some form of a buttres was found on 23% of the 78 species (1785 trees) sampled from a variety of distantly related families. Large differences in buttress formation were documented within a single family and even within the same genus. Previous studies have suggested that buttresses are mechanical adaptations to counter asymmetric loads experienced during brief critical phases in a tree’s development and these persist after the need for a mechanical support has disappeared. As a tree grows from the understorey, up to the canopy, or emerges from the canopy, the potential number of occasions that a tree will experience directional stress increases. Many canopy level trees will probably have been in the vicinity of a treefall gap during their development, while emergent trees may experience gap exposure in addition to wind stresses associated with canopy emergence. Therefore, it is predicted that understorey trees should have fewer and less developed buttresses (after correcting for overall tree size) than canopy trees, which should have fewer and less developed buttresses than emergent trees. Detailed measurements of buttresses from 194 trees of eight species support this prediction. There was no evidence that trees thought to have experienced directional stress associated with selective logging almost 30 y ago had increased the number or size of existing buttresses. The pattern of buttressing in Kibale generally supports the idea that buttresses are mechanical adaptations to counter episodic asymmetric loads, and that buttresses persist after the need for a mechanical support has disappeared.

Change in leaf structure in relation to crown position and size class for tree species within a Sri Lankan tropical rain forest

Botany ◽  
2008 ◽  
Vol 86 (6) ◽  
pp. 633-640 ◽  
Author(s):  
P. A.K.A.K. Panditharathna ◽  
B. M.P. Singhakumara ◽  
H. P. Griscom ◽  
M. S. Ashton
Keyword(s):  
Tree Species ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
Size Class ◽  
Leaf Structure ◽  
Sri Lankan ◽  
Size Classes ◽  
Canopy Trees ◽  
Crown Position ◽  
Closed Canopy

The purpose of our study was to examine change in leaf structure (anatomy and morphology) through different phases of tree size and crown position within a Sri Lankan rain forest. We selected four late-successional canopy species that represented dominant genera ( Shorea , Mesua ) within an Asian tropical rain forest. All are considered shade-tolerant and capable of growing to maturity beneath closed-canopy late-successional forests. Species within each genus were either restricted to seepages and bottom slopes (valley species) or to upper slopes and ridges (ridge species). The size classes represented (i) seedlings, (ii) saplings, (iii) poles growing beneath closed-canopy conditions, and (iv) trees of the rain forest canopy. Between size classes, leaves were thicker and with higher stomatal densities for canopy trees than for seedling, sapling, and pole size classes. Plasticities for measures of leaf structure were greater for ridge species than valley species; except for cuticle thickness, which showed the opposite trend (valley > ridge). Area, length, and width of leaves attained maxima for the sapling size class for all species. Drip-tip lengths were greatest for seedlings of all species, and least for canopy trees. Trends in leaf structure and morphology dimensions across size classes for late-successional canopy tree species are the same as those trends reported between rain forest species of different habitat strata (e.g., understory shrubs versus upper canopy trees). Our results suggest leaf dimensions could provide robust measures of environment, irrespective of species, or size class of tree.

scholarly journals Identifikasi Jenis Liana Dan Tumbuhan Penopangnya Di Blok Perlindungan Taman Hutan Raya Wan Abdul Rachman

2015 ◽  
Vol 3 (2) ◽  
pp. 31
Author(s):  
Tiopan Tua Halomoan Simamora ◽  
Indriyanto . ◽  
Afif Bintoro
Keyword(s):  
Plant Species ◽  
Forest Ecosystem ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
Dominant Species ◽  
Sampling Method ◽  
Plant Density ◽  
Typical Characteristic ◽  
Sample Plot ◽  
Forest Park

Liana is one type of plant that becomes typical characteristic of a tropical rain forest ecosystem and its presence adds to the diversity of plant species in the forest ecosystem.  The purposes of the study were to identify the species of liana, species of cantilever plant, and to know the number of liana species associated with the species of cantilever plant in the protection block of Wan Abdul Rachman Great Forest Park, especially in the area of Way Balau Sub watershed.  The research was conducted on September to Oktober 2013.  The sampling method was used line terraced layer.  The size of each sample plot was 20 m x 20 m with sub plots 10 m x 10 m, 5 m x 5 m, 2 m x 2 m.  Liana and cantilever plants species were inventoried by 0.2% sampling intensity from 796.50 ha.  Observed variables were the species and the number of lianas, spesies of cantilever plant and its number.  The result of research were identified 8 species of liana and 35 spesies of cantilever plants.  Liana density was 1.599 individual/ha and cantilever plant density was 1.594 individual/ha, and it had a good enough distribution because there was no dominant species. The plant that most liked by liana is dadap (Erythrina lithosperma) and liana that mostly found is rayutan (Paederia tomentosa). Keyword:  cantilever plant, liana, Protection Block of Wan Abdul Rachman GreatForest Park

scholarly journals CÁTALOGO DE EPÍFITAS VASCULARES DEL SECTOR EL SILENCIO (PARQUE NACIONAL NATURAL PARAMILLO) Y ZONA AMORTIGUADORA, CÓRDOBA, COLOMBIA

2015 ◽  
Vol 20 (3) ◽  
pp. 167-179
Author(s):  
Rosalba RUIZ VEGA ◽  
Cesar ESQUIVEL BERRIO ◽  
Adolfo SALGADO CRUZ ◽  
Heidy SAAB RAMOS
Keyword(s):  
New Species ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
National Park ◽  
Buffer Zone ◽  
Vascular Epiphytes ◽  
Natural Park ◽  
Vascular Epiphyte

<p>Se presenta el catálogo de la vegetación epifita vascular de un sector del Parque Nacional Natural Paramillo (PNNP) y zona amortiguadora (Córdoba, Colombia). Se realizaron muestreos en un área de 0,1 hectárea, donde se colectaron todas las epífitas vasculares distribuidas en los forófitos que presentaron un DAP ≥2,5 cm en cuatro sectores, El Silencio (interior del PNNP), Tuis Tuis, Tuis Tuis Arriba y Alto de Chibogadó (zona amortiguadora), correspondientes al bosque húmedo tropical (Bh-T) en el municipio de Tierralta. Se encontraron 2504 individuos de epífitas vasculares. El catálogo contiene 73 especies distribuidas en 41 géneros y 18 familias. El sector Tuis Tuis presentó el mayor número de especies (33). Las familias mejor representadas corresponden a las Araceae, Bromeliaceae y Orchidaceae, destacándose por mayor número de especies y géneros la familia Orchidaceae (20/15). Los géneros más diversos fueron <em>Anthurium</em> con ocho especies, <em>Guzmania</em> seis, <em>Tillandsia</em> y <em>Aechmea</em> con cinco cada uno. Los helechos reúnen solo el 6 % de la flora epifita. Se reportan  nuevos registros de especies para el departamento de Córdoba (39), ampliando el rango de distribución de este grupo de plantas en el país.   </p><p><strong>Catalogue of Vascular Epiphytic Sector Silencio (Natural National Park Paramillo) and Buffer Zone, Cordoba, Colombia</strong></p><p>The catalogue of the vascular epiphyte vegetation of Silencio sector (Paramillo National Natural Park) and buffer zone (Córdoba) is showed. Sampling was conducted in an area of 0,1 ha, collecting all vascular epiphytes distributed in phorophytes with a DAP≥2,5 cm, in four sectors. Collections were performed in the Silencio sectors (PNNP), Tuis Tuis, Tuis Tuis Arriba and Alto Chibogadó (buffer zone) of the tropical rain forest (Bh -T) in Tierralta town. 2504 individuals were recorded as vascular epiphytes. The catalog includes 73 species in 41 genera and 18 families. The sector Tuis Tuis showed the greatest representation of species (33). The families with the highest representation corresponds to Araceae, Bromeliaceae and Orchidaceae families. The Orchidaceae family had the highest diversity with 20 species and 15 genera. The most diverse genera were <em>Anthurium</em> with eight species, <em>Guzmania </em>with six species and <em>Aechmea</em> and <em>Tillandsia</em> with five species each one. Ferns are presented only in 6 % of the epiphytic plants. 39 new species records for the department of Córdoba - Colombia are reported, extending the range of distribution of this group of plants in the country.</p>

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