scholarly journals Estimation of demographic parameters, spatial distribution of activity and its habitat types used of Javan Surili (Presbytis comata) in Sigedong Forest Block, Ciremai Mount National Park

2020 ◽  
Vol 528 ◽  
pp. 012022
Author(s):  
Yanto Santosa ◽  
Catur Rahmawati ◽  
Catharina Yudea Utami
Keyword(s):  
Spatial Distribution ◽  
National Park ◽  
Demographic Parameters ◽  
Habitat Types

scholarly journals Species diversity and spatial distribution of snakes in Jigme Dorji National Park and adjoining areas, western Bhutan

2016 ◽  
Vol 8 (12) ◽  
pp. 9461 ◽  
Author(s):  
Bal Krishna Koirala ◽  
Dhan Bdr Gurung ◽  
Phurba Lhendup ◽  
Sonam Phuntsho
Keyword(s):  
Spatial Distribution ◽  
Species Diversity ◽  
National Park ◽  
Climatic Conditions ◽  
River Valley ◽  
Habitat Types ◽  
Elevation Gradients ◽  
Mountain Ecosystem ◽  
Survey Technique

This paper presents the results of a study conducted on the diversity and spatial distribution of snakes along the elevation gradients of Mochu River valley in Jigme Dorji National Park and its adjoining areas.  The survey was conducted from July–September 2014 and May–July 2015.  The study aimed to assess the diversity and distribution of snakes using opportunistic the visual encounter survey technique.  A total of 17 species of snakes belonging to 15 genera and three families were documented during the study period.  More than 53% of species were recorded in the lower sampling sites (between 1,200–500 m) indicating more favourable climatic conditions and habitat types for snakes assemblages at lower elevations indicating the importance of protecting low land forest areas for the conservation of snakes in the Bhutanese mountain ecosystem.  

scholarly journals Species diversity and spatial distribution of amphibian fauna along the altitudinal gradients in Jigme Dorji National Park, western Bhutan

2019 ◽  
Vol 11 (10) ◽  
pp. 14249-14258
Author(s):  
Bal Krishna Koirala ◽  
Karma Cheda ◽  
Tshering Penjor
Keyword(s):  
Spatial Distribution ◽  
National Park ◽  
Diversity Index ◽  
Species Abundance ◽  
Climatic Conditions ◽  
Primary Forest ◽  
Habitat Types ◽  
Elevation Gradients ◽  
Significant Difference ◽  
Survey Technique

This paper presents the results of a study conducted on the diversity and spatial distribution of amphibian fauna in two different habitat types along the elevation gradients of Mochu River valley in Jigme Dorji National Park, Bhutan.  The survey was conducted from November 2017 to February 2019.  The study aimed to assess the diversity and distribution of amphibians using an opportunistic visual encounter survey technique.  A total of 16 species of amphibians belonging to nine genera distributed among seven families were documented during the study period. The Shannon diversity index was relatively higher in the primary forest habitat than in the agro-ecosystem, however, there was no statistically significant difference of species abundance. The decreasing trend of diversity and abundance of amphibian fauna was noticed towards higher altitudinal zones.  About 56% of species were recorded in the lower sampling sites (1200–1600m) indicating more favourable climatic conditions and habitat types for amphibian assemblages at lower elevations.

scholarly journals Patterns of Diversity and Distribution of Arboreal Social Bees’ Beehives within Chimpanzees’ Home Range in a Forest-Savanna Mosaic (Comoé National Park, Côte d’Ivoire)

Sociobiology ◽  
2019 ◽  
Vol 66 (3) ◽  
pp. 480
Author(s):  
Angele Nicodenin Soro ◽  
Juan Lapuente ◽  
Abduoulaye Ngolo Kone ◽  
Kolo Yeo ◽  
Souleymane Konate
Keyword(s):  
National Park ◽  
Secondary Forest ◽  
Ground Level ◽  
Home Ranges ◽  
Gallery Forest ◽  
Habitat Types ◽  
Social Bees ◽  
Mature Forest ◽  
Forest Island ◽  
Forest Habitats

The goal of this study was to explain the patterns of diversity and distribution of arboreal social bees nesting in forest habitats of the Comoé National park, within the home-ranges of wild chimpanzees that consume their honey. Investigations were done using a total sixteen plots, one hectare each, established in three habitat types (mature forest island, secondary forest island and gallery forest). The diversity and distribution of arboreal social bees was estimated with visuals searches. The exploitation of the beehives of these bee by the chimpanzees was also evaluated using chimpanzees’ honey dipping tools as indicators. Results revealed five bees’ species belonging to two tribes; Meliponini (Meliponula ferruginea, Meliponula togoensis, Meliponula bocandei, Hypotrigona gribodoi) and Apini (Apis mellifera). Frequent exploitation of the honey of stingless bees by the chimpanzees was observed, except for H. gribodoi. Meliponula ferruginea was the most exploited species by chimpanzees. A total of 114 beehives were found in the overall established plots leading to an estimated density of 2.4 beehives/ha in the study area. Among the surveyed habitats, mature forest island was found to harbor the highest beehive density (4.2 beehives/ha), followed respectively by secondary-forest island (1.9 beehives/ha) and gallery forest (1.1 beehives/ha). Finally, all bee species were found nesting in cavities of trees with a DBH ranging from 15 to 87.3 cm, with a special preference for Dialium guinneense. However, the DBH of nesting trees and beehives’ height, measured from the ground level, did not significantly influence the honey exploitation by chimpanzees. In sum bee species diversity and distribution might be important in the survival of chimpanzees of a forest savanna landscape.

scholarly journals Spatial distribution pattern of Tarsius Lariang in lore lindu national park

2019 ◽  
Vol 13 (2) ◽  
pp. 606 ◽  
Author(s):  
Abdul Rosyid ◽  
Yanto Santosa ◽  
I Nengah Surati Jaya ◽  
M. Bismark ◽  
Agus P. Kartono
Keyword(s):  
Spatial Distribution ◽  
Distribution Pattern ◽  
Land Surface ◽  
National Park ◽  
Spatial Distribution Pattern ◽  
Systematic Sampling ◽  
Affecting Factors ◽  
Factors Affecting ◽  
Insect Abundance ◽  
Lore Lindu National Park

<p><span>Tarsius lariang (T. lariang) is an endemic species in Lore Lindu National Park (LLNP). Available information regarding T. lariang is limited to only morphological, anatomical, cytogenetic, and voices issues. Knowledge for its geospatial characteristics such as spatial preferences and spatial distribution is rare. The main objective of this study is to identify the spatial distribution pattern of T. lariang in LLNP. An additional objective is to identify the environmental factors affecting its spatial distribution patterns. Field observation for distribution pattern was done at the observation plot that were using systematic sampling with random start. Furthermore, the density estimation in each point was calculated using Triangle Count and Concentration Count method, while insect abundance was estimated using light traps sample data. Finally, spatial pattern was estimated using nearest neighbor index, while the environmental affecting factors were identified by using spatial analysis and correlation analyses. From 45 observation points, the T. lariang distribution pattern was clumped. It is also recognized that the significant factors affecting the spatial distribution were insect abundance, proximity from the commercially utilized land, and land surface temperature.</span></p><p> </p>

scholarly journals Spatial distribution of spruce trees in the nature reserve 'Jankove bare' on mt. Kopaonik

2009 ◽  
pp. 191-204
Author(s):  
Branko Stajic ◽  
Milivoj Vuckovic ◽  
Marko Smiljanic
Keyword(s):  
Spatial Distribution ◽  
Tree Growth ◽  
Environmental Conditions ◽  
National Park ◽  
Nature Reserve ◽  
Distance Methods ◽  
Study Results

The methodology and applicability of the study of spatial distribution of trees in Serbian forestry have been insufficiently reported and presented. This paper, based on mathematical?statistical principles, analyses the method of spatial distribution of spruce trees in the Nature Reserve 'Jankove Bare' in the National Park 'Kopaonik'. The following methods in the group of distance methods were applied: Kotar's method (1993), T2?method, and the index of distance dispersion (Johnson, Zimmer, 1985). The study results in a pure uneven-aged spruce stand based on all three methods showed that spruce trees are randomly distributed over the stand area. Therefore, environmental conditions in the study stand can be regarded as homogeneous and equally suitable for tree growth, and there are no significant interactions between the trees, which could cause a higher competition between the trees for nutrients, water, etc.

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