scholarly journals Inventarisasi Jenis-Jenis Kadal (Sub Ordo Sauria) di Kawasan Hutan Primer, Hutan Sekunder dan Pemukiman di Desa Parek Kacamatan Air Besar Kabupaten Landak

2019 ◽  
Vol 8 (2) ◽  
Author(s):  
Jepri Noperese Ari Hepi Yanti, Tri Rima Setyawati
Keyword(s):  
Secondary Forest ◽  
Primary Forest ◽  
Line Transect ◽  
Line Transect Method ◽  
Open Forests

Parek Village Air Besar District Landak Regency has two types of forests, primary forest and secondary forest. Parek villagers generally open forests for farming, the activities of these residents can disrupt the existence of the Sauria Sub-Order. The purpose of this study was to determine the species of Sauria Sub-Order in Parek Village.  The research was conducted by exploration method which was combined with the line transect method in the area of primary forest, secondary forest and settlement. The results of the study found 7 species from the Sauria Sub-Order there are Gonocephalus borneensis, Tachydromus sexlineatus, Cyrtodactylus sp., Hemidactylus sp., Draco sp., Eutropis multifasciata and Apterygodon vittatum which belong to 4 families, Scincidae, Gekkonidae, Agamidae and Lacertidae.

scholarly journals Inventarisasi Jenis Pohon Pada Cagar Alam Gunung Ambang, Sulawesi Utara

Jurnal MIPA ◽  
2015 ◽  
Vol 4 (2) ◽  
pp. 115
Author(s):  
Akbar Arafah Embo ◽  
Roni Koneri ◽  
Saroyo . ◽  
Adelfia Papu
Keyword(s):  
Life Support ◽  
Secondary Forest ◽  
Primary Forest ◽  
Line Transect ◽  
Sampling Point ◽  
Secondary Forests ◽  
North Sulawesi ◽  
The People ◽  
Family Types

Pohon sebagai penyusun utama kawasan hutan berperan penting dalam pengaturan tata air, cadangan plasma nutfah, penyangga kehidupan, sumber daya pembangunan dan sumber devisa Negara. Peranan pohon-pohon dalam komunitas hutan semakin sulit dipertahankan mengingat tekanan masyarakat terhadap kelompok tumbuhan dari waktu ke waktu terus meningkat.Penelitian ini bertujuan untuk mengkaji jenis-jenis pohon yang berada di kawasan Cagar Alam Gunung Ambang, Sulawesi Utara. Metode penelitian yang digunakan yaitu metode garis berpetak yang merupakan modifiksi dari metode petak atau plot ganda dan metode jalur. Tipe habitat yang dijadikan titik pengambilan sampel adalah hutan primer dan hutan sekunder. Hasil pengamatan diperoleh sebanyak 38 jenis pohon penyusun hutan di Gunung Ambang yang termasuk dalam 22 suku. Pada hutan primer disusun oleh 37 jenis dan 22 suku, sedangkan pada hutan sekunder terdiri dari 28 jenis yang termasuk dalam 18 suku. Jenis pohon yang mendominasi setiap lokasi penelitian yaitu suku Magnoliaceae dan Arecaceae.Tree as the main constituent of forests play an important role in water regulation, germplasm reserves, life support, development resources and the country's foreign exchange resources. The role of trees in the forest communities are difficult to be sustained because the people pressure increase on the trees day by day. This study aims to assess the types of trees that are in the nature reserve area of ​​Gunung Ambang, North Sulawesi. The method used is the line transect plots that is modified  from the plot method or a double plot and track method. The type of habitat that is used as the starting sampling point is the  primary forests and secondary forests. Result of observations showed that Gunung Ambang is composed by 38 species of plant in 22 family. In the primary forest composed by 37 species and 22 Family, whereas in secondary forest consists of 28 species in 18 family. Types of trees that dominate each research location are Family Magnoliaceae and  Family Arecaceae.

Spider diversity in the Bukit Timah Nature Reserve, Singapore

2019 ◽  
Vol 71 ((suppl.1)) ◽  
pp. 209-243
Author(s):  
J.K.H. Koh ◽  
D.J. Court
Keyword(s):  
Nature Reserve ◽  
New Records ◽  
Secondary Forest ◽  
Distinct Species ◽  
Primary Forest ◽  
Preliminary Results ◽  
Vegetation Zones ◽  
Comprehensive Survey ◽  
Quantitative Analyses ◽  
First Time

This paper discusses the preliminary results of the first comprehensive survey of the spiders of the Bukit Timah Nature Reserve (BTNR) in Singapore. Two plots were established in each of the three zones of vegetation, viz., primary forest, old secondary forest, and maturing secondary forest. They were repeatedly sampled over an 18-month period. Sorting of the collection so far suggests that the three vegetation zones harbour rather different spider assemblages. Only ~9% of the total spider fauna recovered was shared by all three zones. The results have also yielded a preliminary picture of dominance, abundance and rarity. Although first intended to obtain a baseline for future quantitative analyses, the survey became a testing ground to modify and refine methodology so as to conduct future quantitative surveys with greater scientific rigour. Taxonomic work on the samples so far shows that the spiders in the BTNR span over 43 families, of which six families are listed for the first time in Singapore. The tally is summarised in an interim checklist of BTNR spiders. The checklist, with a total of 317 entries, shows that there are 158 described species of spiders in BTNR, of which 25 species are new records for Singapore. Another 159 morphospecies are provisionally recognised as distinct species, some of which may be new to science. Our observations during the survey have allowed us to provide a narrative of BTNR spider diversity against a backdrop of their microhabitat specialisation.

MANAJEMEN DATA SPASIAL: PENGGUNAAN TANAH WILAYAH PEDESAAN DI SUMATERA BARAT

2019 ◽  
Vol 5 (2) ◽  
pp. 48-53
Author(s):  
Afrital Rezki, S.Pd., M.Si ◽  
Erna Juita ◽  
Dasrizal Dasrizal ◽  
Arie Zella Putra Ulni
Keyword(s):  
Land Use ◽  
Paddy Field ◽  
Secondary Forest ◽  
Water Bodies ◽  
Primary Forest ◽  
Land Uses ◽  
Forest Land ◽  
Land Use Patterns ◽  
Crop Fields ◽  
Mixed Plantations

Perkembangan penggunaan tanah bergerak horisontal secara spasial ke arah wilayah yang mudah diusahakan. Penggunaan tanah juga bergerak secara vertikal dalam rangka menaikkan mutunya. Penelitian ini bertujuan untuk menganalisis pola penggunaan lahan, bagaimana manajemen penggunaan lahan di satu wilayah berdasarkan batas Nagari. Metode yang digunakan adalah analsisis spasial dengan interpretasi citra penginderaan jauh, survey lapangan, dan analisis deskriptif. Pertumbuhan pemukiman Nagari Sungai Sariak Kecamatan VII Koto Kabupaten Padang Pariaman mengakibatkan pemanfaatan ruang menjadi tumpang tindih. Diperlukan cara-cara pengelolaan dan managemen penggunaan tanah dalam rangka pembangunan berkelanjutan yang menaikkan taraf hidup masyarakat dan tidak menimbulkan kerugian lingkungan.Terdapat 9 jenis penggunaan lahan yang ada di Nagari Sungai Sariak. Penggunaan lahan tersebut adalah Primary Forest, Secondary Forest, Paddy Field, Settlement, Mixed Plantations, Crop Fields, Water Bodies, Bushes, dan Plantations. Penggunaan lahan yang paling luas di Nagari Sungai Sariak adalah jenis penggunaan lahan Primary Forest, sebesar 48% dari total luas wilayah Nagari Sungai Sariak. Pada tahun 2011 sampai tahun 2016, penggunaan lahan paling luas terjadi pada penggunaan lahan jenis Primary Forest yang kemudian menjadi Mixed Plantations. Land use Changes moved horizontally spatially towards areas that are easily cultivated. The land use also moves vertically in order to increase its quality. This study aims to analyze land use patterns, how land use management in one area is based on Nagari boundaries. The method used is spatial analysis with interpretation of remote sensing images, field surveys, and descriptive analysis. The growth of Nagari Sungai Sariak in Kecamatan VII Koto, Kabupaten Padang Pariaman resulted in overlapping use of space. Management methods are needed and management of land use in the framework of sustainable development that raises the standard of living of the community and does not cause environmental losses. There are 9 types of land use in the Nagari Sungai Sariak. The land uses are Primary Forest, Secondary Forest, Paddy Field, Settlement, Mixed Plantations, Crop Fields, Water Bodies, Bushes, and Plantations. The most extensive land use in Nagari Sungai Sariak is the type of Primary Forest land use, amounting to 48% of the total area of the Nagari Sungai Sariak. From 2011 to 2016, the most extensive land use occurred in Primary Forest land uses which later became Mixed Plantations.

scholarly journals Responses of Bat Communities (Mammalia: Chiroptera) to Forest Loss and Habitat Conversion in Southern Cameroon

2021 ◽  
Vol 14 ◽  
pp. 194008292110103
Author(s):  
Patrick Jules Atagana ◽  
Eric Moïse Bakwo Fils ◽  
Sevilor Kekeunou
Keyword(s):  
Secondary Forest ◽  
Biosphere Reserve ◽  
Abundant Species ◽  
Primary Forest ◽  
Habitat Types ◽  
Habitat Transformation ◽  
Significant Difference ◽  
Southern Cameroon ◽  
Habitat Conversion ◽  
Species Specific

We aimed to assess how bats are affected by habitat transformation by comparing bat assemblages in four habitat types: primary forest, secondary forest, cocoa plantations and human habitations in the Dja Biosphere Reserve of southern Cameroon. Bats were sampled in the four habitat types using mist nets. During 126 nights, a total of 413 bats were captured, belonging to four families, 16 genera and 24 species. Ninety three individuals (17 species) were captured in the primary forest, followed by plantations (105 individuals, 14 species), human habitations (159 individuals, 10 species), and secondary forest (55 individuals, eight species). Megaloglossus woermanni was recorded in all the four habitats, and was the most abundant species (105 individuals). The analysis of bat assemblage between habitat types showed a statistically significant difference in species composition. The distribution of the six most abundant species ( Epomops franqueti, Megaloglossus woermanni, Rousettus aegyptiacus, Dohyrina cyclops, Hipposideros cf. caffer and Hipposideros cf. ruber) was influenced by habitat types. Our results suggest that the decrease in species richness observed in disturbed habitats may be due to habitat perturbations of primary forest habitats. Therefore, it is important to examine the effects of habitat conversion at species level, as responses are often species-specific.

Abundance Estimation of Diving Animals by the Double-Platform Line Transect Method

Biometrics ◽  
2003 ◽  
Vol 59 (3) ◽  
pp. 512-520 ◽  
Author(s):  
Hiroshi Okamura ◽  
Toshihide Kitakado ◽  
Kazuhiko Hiramatsu ◽  
Mitsuyo Mori
Keyword(s):  
Abundance Estimation ◽  
Line Transect ◽  
Line Transect Method

scholarly journals Status and distribution of the Pemba flying fox Pteropus voeltzkowi

Oryx ◽  
1997 ◽  
Vol 31 (2) ◽  
pp. 135-142 ◽  
Author(s):  
Abigail Entwistle ◽  
Nadia Corp
Keyword(s):  
Secondary Forest ◽  
Primary Forest ◽  
The West ◽  
Pregnant Females ◽  
Fruit Bat ◽  
Flying Fox

The Pemba flying fox Pteropus voeltzkowi is a fruit bat endemic to the island of Pemba, off Tanzania. A total of 41 reported roosting areas were visited in June and July 1995, and 19 occupied roosts were located, most of them in the west of the island, and on small islets off the west and south of Pemba. Roosts were situated in primary forest, secondary forest (overgrown clove plantations), traditional graveyards and mangrove areas. A range of sizes and species of trees were used as roosts. The minimum population of P. voeltzkowi was estimated to be between 4600 and 5500 individuals. In total 94 per cent of the population was located at 10 roost sites. Larger colonies were associated with roosts located in forests, which together supported 75 per cent of the total bat population. Colonies were of mixed sex, but no young or obviously pregnant females were observed. Major threats to this species appeared to be hunting and deforestation (both logging and clearing for agriculture) and P. voeltzkowi is considered to be endangered.

Comparison of soil respiration among three temperate forests in Changbai Mountains, China

2010 ◽  
Vol 40 (4) ◽  
pp. 788-795 ◽  
Author(s):  
Xu Wang ◽  
Yanling Jiang ◽  
Bingrui Jia ◽  
Fengyu Wang ◽  
Guangsheng Zhou
Keyword(s):  
Soil Respiration ◽  
Soil Temperature ◽  
Secondary Forest ◽  
Temperature Response ◽  
Stand Age ◽  
Changbai Mountains ◽  
Primary Forest ◽  
Plantation Forest ◽  
Successional Stage ◽  
Coniferous Plantation

CO2 efflux from forest soils is an important process in the global carbon cycle; however, effects of stand age and successional status remain uncertain. We compared soil respiration and its relationship to soil carbon content, forest floor mass, root biomass, soil temperature, and soil moisture content among three temperate forest ecosystems in Changbai Mountains, northeastern China, from 2003 to 2005. Forest types included an old-growth, mixed coniferous and broad-leaved primary forest (MN), a middle-aged, broad-leaved secondary forest (BL), and a young coniferous plantation forest (CP). Average annual soil CO2 efflux at BL (1477.9 ± 61.8 g C·m–2·year–1) was significantly higher than at CP (830.7 ± 48.7 g C·m–2·year–1) and MN (935.4 ± 53.3 g C·m–2·year–1). Differences in soil temperature among those sites were not statistically significant but contributed to the differences in annual CO2 efflux. In addition, the temperature response of soil CO2 efflux was higher at MN (Q10 = 2.78) than that at BL (Q10 = 2.17) and CP (Q10 = 2.02). Our results suggest that successional stage affects soil respiration by the differences in substrate quantity and quality, environmental conditions, and root respiration.

scholarly journals Density and Flock Size of the Raven (Corvus corax) In the Orawa - Nowy Targ Basin During Non-Breeding Season

Ring ◽  
2006 ◽  
Vol 28 (2) ◽  
pp. 119-125
Author(s):  
Michał Ciach ◽  
Dominik Wikar ◽  
Małgorzata Bylicka
Keyword(s):  
Breeding Season ◽  
Early Spring ◽  
Food Resources ◽  
High Density ◽  
Line Transect ◽  
Flock Size ◽  
Early Winter ◽  
Corvus Corax ◽  
Line Transect Method ◽  
Breeding Seasons

Density and Flock Size of the Raven (Corvus corax) In the Orawa - Nowy Targ Basin During Non-Breeding Season During the 2002/2003-2004/2005 non-breeding seasons the density of the Raven in the open habitats of the Orawa - Nowy Targ Basin was studied by line transect method. The results were analysed in four periods (autumn, early winter, winter and early spring). The median density of Ravens did not differ significantly between individual periods and was respectively: 3.5, 3.8, 4.8 and 3.8 indiv. / 10 km. Number of birds during particular controls varied from 1.0 to 24.8 indiv. / 10 km. However, while excluding flocks, the median density of single individuals and pairs of the Raven was considerably lower and in subsequent periods reached respectively: 2.2, 2.4, 2.2 and 1.7 indiv. / 10 km. Flock size did not differ significantly between individual periods. Single individuals and, less often, groups of two birds were recorded mostly. Small (3-5 indiv.) and medium (6-15 indiv.) flocks were recorded rarely and large flocks (16 indiv. and above) - only exceptionally. The high density and strong fluctuations of abundance of Ravens were determined by flocks presence, which was probably linked to irregular occurrence of food resources.

Seed mass and light requirements for regeneration in Southeast Asian rain forest

1995 ◽  
Vol 73 (6) ◽  
pp. 817-826 ◽  
Author(s):  
D. J. Metcalfe ◽  
P. J. Grubb
Keyword(s):  
Phylogenetic Analysis ◽  
Rain Forest ◽  
Secondary Forest ◽  
Seed Mass ◽  
Primary Forest ◽  
Secondary Forests ◽  
Light Requirement ◽  
Lowland Rain Forest ◽  
Light Requirements ◽  
Shade Tolerant Species

Seed mass values are given for 140 species of primary lowland rain forest and associated secondary forests in Singapore. Among shade-tolerant species of primary forest there is a trend for a decrease in mean seed mass with tall trees > woody climbers > small trees > shrubs > herbs; the differences between tall trees and small trees or shrubs or herbs, and between herbs and small trees or woody climbers are significant. There are a few light-demanding herbs or shrubs in the primary forest; among small trees, light demanders have significantly lower seed mass values than shade tolerators. In 9 out of 13 comparisons within taxa including both shade tolerants and light demanders the former had appreciably larger seeds than the latter. Two out of 13 comparisons involved very small seeded shade tolerators, and one a notably large-seed light demander. Many shade-tolerant herbs, shrubs, and trees have seed mass values much smaller than those of trees of secondary forest conventionally regarded as small seeded, and exploit moist, litter-free sites, e.g., steep microslopes. The trees of secondary forests on degraded soils do not differ significantly in seed mass from those on nondegraded soils. Key words: seed mass, light requirement, regeneration, tropical rain forest, phylogenetic analysis.

scholarly journals The habitat characteristics of Sumatran Elephant (Elephas maximus sumatranus) in the forest of Serbajadi sub-district Aceh Province

2021 ◽  
Vol 922 (1) ◽  
pp. 012055
Author(s):  
Abdullah ◽  
Supriadi ◽  
D Syafrianti ◽  
Khairil ◽  
A M Daud ◽  
...  
Keyword(s):  
Secondary Forest ◽  
Vegetation Type ◽  
Canopy Cover ◽  
Habitat Characteristics ◽  
Elephas Maximus ◽  
Primary Forest ◽  
Tabular Form ◽  
Aceh Province ◽  
Feeding Activities ◽  
Forest Vegetation Type

Abstract The purpose of this study was to determine the habitat characteristics of the Sumatran Elephant in the Serbajadi District Forest. Data collection by looking at the use of habitat which is characterized by the distribution of faeces found in various habitat units in the home range of the Sumatran Elephant. The method used is observation with a track with a size of 3,600 m which is divided into 20 observation plots with a distance between plots of 100 m. The data obtained in the field were analyzed descriptively and presented in tabular form. The results of this study indicate that the Habitat Characteristics of the Sumatran Elephant in the Serbajadi District Forest chose habitat units with very dense canopy cover (>75%), moderate feed availability (26-50%), rare mineral source trees availability (< 3 trees/plot). availability of sparse scrubbing trees (<3 trees/plot), close to primary forest (0-500 m), low land elevation (0- 400 masl), gentle slope (0-20°), close to water sources (0-250m). Secondary forest/vegetation type and frequency of habitat use based on the findings of faeces that the Sumatran elephant most frequently visited was secondary forest than primary forest because the secondary forest was for feeding activities while the primary forest was used for resting and reproduction.

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