Studies in Malaysian Rain Forest: I. The Forest on Triassic Sediments in Jengka Forest Reserve

1968 ◽  
Vol 56 (1) ◽  
pp. 143 ◽  
Author(s):  
M. E. D. Poore
Keyword(s):  
Rain Forest ◽  
Forest Reserve

Survey of Ticks (Acari: Ixodidae) and TheirRickettsiain an Atlantic Rain Forest Reserve in the State of São Paulo, Brazil

2010 ◽  
Vol 47 (5) ◽  
pp. 913-916 ◽  
Author(s):  
Guilherme S. Sabatini ◽  
Adriano Pinter ◽  
Fernanda A. Nieri-bastos ◽  
Arlei Marcili ◽  
Marcelo B. Labruna
Keyword(s):  
Rain Forest ◽  
Sao Paulo ◽  
The State ◽  
Atlantic Rain Forest ◽  
São Paulo ◽  
Forest Reserve

Effects of termite exclusion on decay of heavy and light hardwood in a tropical rain forest of Peninsular Malaysia

2001 ◽  
Vol 17 (4) ◽  
pp. 541-548 ◽  
Author(s):  
KENZI TAKAMURA
Keyword(s):  
Rain Forest ◽  
Tropical Rain Forest ◽  
Wood Quality ◽  
Wood Decay ◽  
Peninsular Malaysia ◽  
Significant Loss ◽  
Foraging Activity ◽  
Forest Reserve ◽  
Decomposition Experiments ◽  
And Control

Wood pieces of a heavy hardwood Neobalanocarpus heimii (King) P. S. Ashton and a light hardwood Shorea macroptera Dyer were used in decomposition experiments with termite-exclusion and control trays on the forest floor of the Pasoh Forest Reserve, West Malaysia to determine effects of wood quality on termite-mediated wood decay. Shorea macroptera had a significant loss of C in the presence of termites while Neobalanocarpus heimii showed no significant termite effect. Neobalanocarpus heimii and S. macroptera both accumulated N in the absence of termites, but S. macroptera lost it when termites were present. The C/N ratio decreased with and without termites as decay proceeded in both species. Neobalanocarpus heimii accumulated P, but S. macroptera lost it with and without termites. The C/P ratio decreased in N. heimii, but did not change in S. macroptera. Decomposition was considerably enhanced by termites in S. macroptera, but not in N. heimii, indicating that termite foraging activity was affected by the different wood qualities of the two trees. The qualities responsible for the differences and how different wood qualities affect nutrient cycling in the tropical rain forest ecosystem are discussed.

scholarly journals A rapid assessment of logging effects on bird species in Kelantan forests areas, Malaysia

2015 ◽  
Author(s):  
Saber Ghasemi
Keyword(s):  
Rain Forest ◽  
Rapid Assessment ◽  
Distance Sampling ◽  
Bird Species ◽  
Secondary Data ◽  
Critically Endangered ◽  
Survey Method ◽  
Lowland Forest ◽  
Forest Reserve ◽  
Logging Effects

Kelantan Forest Areas (KFA) are known to be the major portion of Taman Negara National Park, and it has been identified as an Environmentally Sensitive Area (ESA) rank 1 under Malaysia’s National Physical Plan (NPP). Since access to the forest areas is often lacking and vital forest information are often inadequate, this study aims to find a baseline data for macro EIA of KFA. This study consists of rapid assessment of logging effects on bird species. Based on the study, Kelantan forests are divided into (1) lowland evergreen rain forest, (2) lower mountain rain forest and (3) upper mountain rain forest, using general vegetation forms. A total of 321 species of birds were recorded in KFA using data collection from related agencies, Mist-netting Method, Transect survey Method (Distance Sampling Method; Point Count Method) and Secondary data. Out of this number, 220, 49, 7 and 1 species were falls under totally protected, nearly threatened, vulnerable and critically endangered categories, respectively. Out of the total recorded species, a total of 155, 292 and 128 species were recorded in lowland evergreen rain forest reserves, lower mountain rain forest reserve and upper Kelantan mountain rain forest respectively. The blue-banded kingfisher Alcedo euryzonia in the list of Kelantan birds was fall under critically endangered status. A total of 83 species were observed commonly in 3 kinds of habitat, 20 species were recorded only in Kelantan lowland forest reserve, which species Jambu fruit-dove was fall under nearly threatened. Furthermore, a total of 5 species were recorded just in upper mountain Kelantan rain forest. This study considered that Kelantan forests could be one of the `megadiversity’ places in Malaysia, and effects of logging on wildlife species as well as birds were cleared.

scholarly journals A rapid assessment of logging effects on bird species in Kelantan forests areas, Malaysia

2015 ◽  
Author(s):  
Saber Ghasemi
Keyword(s):  
Rain Forest ◽  
Rapid Assessment ◽  
Distance Sampling ◽  
Bird Species ◽  
Secondary Data ◽  
Critically Endangered ◽  
Survey Method ◽  
Lowland Forest ◽  
Forest Reserve ◽  
Logging Effects

Kelantan Forest Areas (KFA) are known to be the major portion of Taman Negara National Park, and it has been identified as an Environmentally Sensitive Area (ESA) rank 1 under Malaysia’s National Physical Plan (NPP). Since access to the forest areas is often lacking and vital forest information are often inadequate, this study aims to find a baseline data for macro EIA of KFA. This study consists of rapid assessment of logging effects on bird species. Based on the study, Kelantan forests are divided into (1) lowland evergreen rain forest, (2) lower mountain rain forest and (3) upper mountain rain forest, using general vegetation forms. A total of 321 species of birds were recorded in KFA using data collection from related agencies, Mist-netting Method, Transect survey Method (Distance Sampling Method; Point Count Method) and Secondary data. Out of this number, 220, 49, 7 and 1 species were falls under totally protected, nearly threatened, vulnerable and critically endangered categories, respectively. Out of the total recorded species, a total of 155, 292 and 128 species were recorded in lowland evergreen rain forest reserves, lower mountain rain forest reserve and upper Kelantan mountain rain forest respectively. The blue-banded kingfisher Alcedo euryzonia in the list of Kelantan birds was fall under critically endangered status. A total of 83 species were observed commonly in 3 kinds of habitat, 20 species were recorded only in Kelantan lowland forest reserve, which species Jambu fruit-dove was fall under nearly threatened. Furthermore, a total of 5 species were recorded just in upper mountain Kelantan rain forest. This study considered that Kelantan forests could be one of the `megadiversity’ places in Malaysia, and effects of logging on wildlife species as well as birds were cleared.

Monteverde

2000 ◽  
Keyword(s):  
High Altitude ◽  
Tropical Forests ◽  
Human Activity ◽  
Rain Forest ◽  
Cloud Forest ◽  
Extensive Investigation ◽  
Negative Effects ◽  
Cloud Forests ◽  
Forest Reserve ◽  
The Past

The Monteverde Cloud Forest Reserve has captured the worldwide attention of biologists, conservationists, and ecologists and has been the setting for extensive investigation over the past 30 years. Roughly 40,000 ecotourists visit the Cloud Forest each year, and it is often considered the archetypal high-altitude rain forest. This volume brings together some of the most prominent researchers of the region to provide a broad introduction to the biology of the Monteverde, and cloud forests in general. Collecting and synthesizing vital information about the ecosystem and its biota, the book also examines the positive and negative effects of human activity on both the forest and the surrounding communities. Ecologists, tropical biologists, and natural historians will find this volume an indispensable resource, as will all those who are fascinated by the magnificent wonders of the tropical forests.

Tree population changes in treated rain forest at Omo Forest Reserve, south-western Nigeria

1987 ◽  
Vol 3 (4) ◽  
pp. 291-313 ◽  
Author(s):  
D. U. U. Okali ◽  
B. A. Ola-Adams
Keyword(s):  
Rain Forest ◽  
Forest Biomass ◽  
Basal Area ◽  
Walsh System ◽  
Relative Distribution ◽  
Annual Increment ◽  
Forest Reserve ◽  
Number Of Species ◽  
Canopy Opening ◽  
Number Of Stems

ABSTRACTA review of previous evaluations of long-term changes in treated Nigerian rain forest is presented, to show that these studies have concentrated on economic species with little consideration of other species, or of forest biomass and structure.We examine regeneration and successional patterns in Omo Forest Reserve by comparing enumeration data taken before (1952) and after (1981) treatment of the forest by selective canopy opening and climber-cutting (Plot A), or clear-felling and burning (Walsh system) (Plot C).Before treatment, about 50 species in 25 families were found of stems ≥10 cm dbh, in 4.05 ha of the forest, the Euphorbiaceae contributing the greatest number of species while the medium-sized trees Diospyros alboflavescens (Ebenaceae) and Strombosia pustulata (Olacaceae) contributed more than 40% of the stems.Twenty-eight years after treatment (1981) the number of species and families remained similar to those in 1952, although smaller areas (0.75 ha) were enumerated; the treated plots were, however, dominated by early succession species such as Macaranga barteri, Musanga cecropioides, Cleistopholis patens, Funtumia elastica and Fagara macrophylla, and lacked an abundance of the ‘economic’ species that treatment had been expected to induce; the medium-sized trees that were dominant in 1952 were still abundant in Plot A but not in Plot C.For stems ≥ 30 cm dbh tree diversity (reciprocal of Simpson's index) was highest (15.7) in a 1952 plot and least (4.8) in the clear-felled plot enumerated in 1981; diversity of the 1952 plots, however, fell markedly to values lower than those for the 1981 plots when computation was based on all stems ≥10 cm dbh, presumably because of increase in abundance of small-stemmed species like Diospyros spp., Strombosia sp. and Rinorea sp., each represented by a large number of stems.Basal area was greatest (29.6 m2 ha−1) in the 1952 plots and least (12.7 m2 ha−1) in the clear-felled plots enumerated in 1981, but the relative distribution of basal area and number of stems in size-classes was similar in all the plots.Mean annual increment, computed by dividing the mean diameter (7.50 cm) of the stems in the clear-felled plots by the number of years (28) over which they had grown, was 0.27 cm.Nauclea diderrichii dominated the seedling regeneration from the first year after clear-felling and burning (1954) till the sixth year (1960), when seedlings of the Meliaceae entered the regeneration list and overall seedling density was 395 per hectare.Among the plots assessed in 1981, the standing crop was greatest in an untreated Control plot (229.6 t ha−1) followed by Plot A (159.7 t ha−1) and Plot C (91.1 t ha7−1), but the relative allocation of biomass to stem, branch, leaf, root and fruit fractions was comparable for all plots.The data are discussed in relation to other Nigerian forest studies and it is suggested that the main qualitative features of structural organization and the species composition of the top canopy synusia of mature secondary rain forest may be determined quite early in the development of the stand.

scholarly journals Estrutura e funcionamento de um ecossistema florestal amazônico de terra firme junto à Reserva Florestal Walter Egler, município de Rio Preto da Eva, Amazonas, Brasil

2000 ◽  
Vol 29 ◽  
Author(s):  
WILLIAM A. RODRIGUES ◽  
†HANS KLINGE ◽  
ERNEST J. FITTKAU
Keyword(s):  
Forest Ecosystem ◽  
Rain Forest ◽  
East Side ◽  
Terra Firme ◽  
Forest Reserve ◽  
Lowland Rain Forest

Para se determinar a estrutura e fitomassa de um ecossistema florestal amazônico de terra firme, mapeou-se e colheu-se a vegetação de uma área demarcada de 0,2 ha localizada nas adjacências do limite leste da Reserva Florestal W. Egler (km 64 da estrada Manaus- Itacoatiara (AM-1), Município de Rio Preto da Eva, Amazonas, Brasil. Os resultados obtidos são apresentados e discutidos em comparação com os dados da literatura. ABSTRACT For the determination of structure and phytomass of a Central Amazonian lowland rain forest ecosystem, its vegetation was mapped and harvested on 0.2-ha, very near the Forest Reserve W. Egler, situated at the east side of the Manaus-Itacoatiara road (AM-1), km 64, Municipality of Rio Preto da Eva, Amazonas, Brazil. The main results are presented and discussed in comparison to data from the literature. RÉSUMÉ Pour déterminer la structure et la phytomasse de la forêt amazonienne dense humide de terre ferme, très proche de la limite de la Réserve Forestière W. Egler, localisée sur la route AM-1 (Manaus à Itacoatiara), km 64, Etat d’Amazonas, Brésil, la végétation de 0,2 ha a été cataloguée et récoltée entiérement. Les résultats sont présentés et discutés par repport aux données disponibles de la littérature.

Litterfall and productivity in a tropical rain forest, Southern Baakundu Forest Reserve, Cameroon

1988 ◽  
Vol 4 (1) ◽  
pp. 25-37 ◽  
Author(s):  
Nicholas C. Songwe ◽  
F. E. Fasehun ◽  
D. U. U. Okali
Keyword(s):  
Relative Humidity ◽  
Linear Regression ◽  
Rain Forest ◽  
Climatic Factors ◽  
Leaf Fall ◽  
Leaf Production ◽  
Forest Reserve ◽  
Weight Losses ◽  
Time Of Year ◽  
Canopy Species

ABSTRACTLitterfall was measured monthly in ten 1 m2 traps in each of two 0.25 ha plots in the rain forest of Southern Bakundu Forest Reserve, Cameroon for 18 months from 1 July 1982 to 31 December 1983. Particular emphasis was placed on measuring species contributions and in relating litterfall to climatic factors; the litterfall data were also used in estimating leaf production. Annual litterfall ranged between 12.9 and 14.1 t ha−1 and was partitioned to leaves (61–66%), branches (23–38%), fruits and flowers (8–12%) and ephiphytes (0.8%). Emergents and top canopy species like Desbordesia glaucescens (evergreen) and Ceiba pentandra (deciduous) contributed more litter than the numerically dominant lower storey species like Cola lepidota and Diospyros spp. Litter fell throughout the year but was greatest during the dry season (November to March); litterfall was thus strongly negatively correlated with environmental moisture variables and could be predicted from its linear regression on time of year, throughfall and relative humidity. By correcting the leaf fall data for leaf weight losses due to grazing and re-translocation, leaf production rates of 10.2 to 11.2 t ha−1 yr−1 were estimated for the forest.

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