scholarly journals Estimation of Orangutan Population in Sibongkaras Pakpak Bharat Village Forest Area

Elkawnie ◽  
2020 ◽  
Vol 6 (1) ◽  
pp. 133
Author(s):  
Juhardi Sembiring ◽  
Taufiq Siddiq Azvi

Abstract : Orangutan is classified as an endangered species. Forest clearance for a variety of purposes and functions over the region led to the limited habitat for orangutans. Orangutans habitat is fragmented into several regions led to the survival of a population of a species depends on habitat conditions. Performing a nest survey is important to give a deeper understanding of the ecology and help determine the best protective management measures. We provide basic data of orangutan density and orangutan nesting characteristics in protected forest area Sibongkaras village. This study was conducted in April 2019 until June 2019 in protected forest area Sibongkaras village, Pakpak Bharat. Tracking begins with observed the presence of a nest based on a purposive sampling method. And data retrieval was done by line transect method. Data analyzed at Universitas Nahdlatul Ulama Sumatera Utara. Our result showed that the orangutan population density was 0.0072 individuals/km2 or 0.72 individuals/ha. The dominant position of the nest is in a position which is a position I nest close to the main stem of the tree with the nest number 13 (43.3%). Generally, the nest is found at an altitude of  >15 meters with a sum of 27 nests (90%).Abstrak : Orangutan diklasifikasikan sebagai spesies yang terancam punah. Penebangan hutan untuk berbagai tujuan dan fungsi di kawasan tersebut menyebabkan terbatasnya habitat orangutan. Habitat orangutan yang terfragmentasi menjadi beberapa wilayah menyebabkan kelangsungan hidup suatu populasi suatu spesies tergantung pada kondisi habitat. Melakukan survei sarang penting untuk memberikan pemahaman yang lebih dalam tentang ekologi dan membantu menentukan langkah-langkah manajemen perlindungan terbaik. Kami menyediakan data dasar kepadatan orangutan dan karakteristik sarang orangutan di kawasan hutan lindung Desa Sibongkaras. Penelitian ini dilakukan pada bulan April 2019 hingga Juni 2019 di kawasan hutan lindung Desa Sibongkaras, Pakpak Bharat. Pengamatan dimulai dengan mengamati keberadaan sarang berdasarkan metode purposive sampling. Dan pengambilan data dilakukan dengan metode transek garis. Data yang diperoleh di analisis di Universitas Nahdlatul Ulama Sumatera Utara. Hasil Penelitian kami menunjukkan kepadatan populasi orangutan di 0,0072 individuals/km2 atau 0,72 individu / ha. Posisi sarang yang dominan adalah pada posisi sarang yang berada di posisi paling dekat dengan batang utama, dengan jumlah sarang 13 (43,3%). Umumnya sarang ditemukan di ketinggian > 15 meter dengan jumlah 27 sarang (90%).

2019 ◽  
Vol 9 (1) ◽  
pp. 1
Author(s):  
Jayens Alotia ◽  
Saroyo Saroyo ◽  
Sendy Rondonuwu

Biodiversitas Burung pada Perkebunan Kelapa di Kabupaten Minahasa Utara, Provinsi Sulawesi Utara(Bird Biodiversity in Coconut Plantation in North Minahasa Distric, North Sulawesi Province) Jayens Alotia1)*, Saroyo1), Sendy Rondonuwu1)1)Program Studi Biologi, FMIPA Universitas Sam Ratulangi, Manado 95115*Email korespondensi: [email protected] Diterima  1 Februari 2019, diterima untuk dipublikasi 28 Februari  2019 Abstrak Burung memerlukan tempat atau ruang yang digunakan untuk mencari makan, minum, berlindung, bermain, dan tempat berkembang biak. Penelitian ini bertujuan untuk menganalisis biodiversitas burung pada habitat perkebunan kelapa di Kabupaten Minahasa Utara. Pengambilan data dilaksanakan dari bulan Desember 2017 sampai dengan bulan Maret 2018 di perkebunan kelapa di Desa Maumbi, Desa Tatelu dan Desa Pinili  Kabupaten Minahasa Utara, Provinsi Sulawesi Utara.  Pengambilan data dilakukan dengan menggunakan metode survei. Teknik penentuan petak contoh menggunakan metode purposive sampling yaitu teknik penentuan sampel dengan pertimbangan tertentu. Petak contoh ditentukan sebanyak 3 transek berbentuk garis transek (line transect) dengan panjang masing-masing transek 2000 m dan lebar 20 m dengan pengambilan data sebanyak 5 kali. Berdasarkan penelitian diperoleh hasil sebanyak 23 jenis burung dengan indeks biodiversitas sebesar 2.76, dari 23 jenis burung tersebut diketahui jumlah jenis burung yang dianggap kurang mengkhawatirkan (LC) terdapat 21 jenis burung, sedangkan status rentan (VU) terdapat 1 jenis yaitu Penelopides exarhatus dan status hampir punah (NT) terdapat satu jenis yaitu Accipiter nanus.Kata kunci: biodiversitas, burung, perkebunan kelapa, Kabupaten Minahasa Utara. Abstract Birds buy places or spaces that are used to find food, drink, shelter, play, and breed. This study aims to analyze biodiversity in coconut plantation habitat in North Minahasa Regency. Data collection was carried out from December 2017 to March 2018 in coconut plantations, North Minahasa Regency, North Sulawesi Province in Maumbi Village, Tatelu Village, Pinili Village. Data retrieval is done using the survey method. The sampling technique uses purposive sampling method which is a sample selection technique with certain considerations. Sample plots are determined by 3 transects, forming line transects (line transects) with the length of each transect of 2000 m and width of 20 m by taking data 5 times. Based on research conducted in plantation habitats, North Minahasa Regency obtained research on species of birds on plantations in North Minahasa Regency, North Sulawesi Province, which consisted of 23 species of birds with a biodiversity index of 2.76, of 23 species of birds there are according to the type of bird that is considered less alarming (LC) there are 21 species of birds, while the vulnerable status (VU) there is 1 type, Penelopides exarhatus and the status is almost extinct (NT) there is 1 type, Accipiter nanus. Keywords: biodiversity, birds, coconut plantations, North Minahasa Regency.


2019 ◽  
Vol 7 (3) ◽  
Author(s):  
Efrosina Yelni Herviory ◽  
M Sofwan Anwari ◽  
Ahmad Yani

Gastropod is a single-shelled animal that walks using stomach for their legs. Mangrove forest located Mendalok village, Sungai Kunyit sub-district, Mempawah district have pristine mangroves whose function is still maintained and is natural. The purpose of this study was to examine the diversity of Gastropoda species in Mendalok the area. Data retrieval the diversity of Gastropod species, the researchers empolyed a purposive sampling method that making each zone used 3 lines observation of each one line transect. While the three observation tracks consist of the Avicenia zone, Rhizopor zone, Bruguiera zone. The number of Gastropod individual found was 367 with 5 families and 8 species (Cerithideopsilla alata, littorina obstutata, Littorinopsis anguliferis, Littoraria melanstoma, Graciliclva costata, Casidulla aurisfelis, Ellobium aurisjudae, and Lirttoraria undulata). The research found diversity indexes in Avicennia zone = 2,98, Rhizopora zone = 3,05 and Bruguiera zone = 1,16. Especially, the highest density is in the type of Gastropod Littoraria undulata. Additionally, the dominant index is found in the Avicenia zona = 0,8562, the Rhizopora zone = 0, 5410 and Bruguiera zone = 0,4585. While the low similarity index exist in both Bruguiera zone = 28,77 % and Avicenia zone = 28,50%, and the index of type similarity is at the value of 0,1117.Keyword: Ecotourism of mangrove, Gastropods, mangrove forests.


2019 ◽  
Vol 34 (1) ◽  
Author(s):  
Fitri Ella Fauziah ◽  
Murharsito Murharsito

This study aims to examine the influence of money ethics on ethical attitudes and to examine the influence of religiosity in moderating the relationship between money ethics and ethical attitudes.The population used in this study were all accounting students at Nahdlatul Ulama Islamic University in Jepara. The research sample was taken by purposive sampling method, 87 students elected as the research sample. The analysis technique used in the study is a residual test. This study used primary data  by distributing questionnaires to students of the accounting department of the Islamic University of Nahdlatul Ulama 'Jepara. The results of the study showed that money ethics has no effect on ethical attitudes and religiosity cannot moderate the relationship between money ethics and ethical attitudes.The implication of this research is that ethics education is still needed in University, so that they have an understanding related to it.


2012 ◽  
Vol 1 (1) ◽  
pp. 26-32
Author(s):  
Sahila Rizkya

Penelitian ini dilaksanakan pada bulan April 2012 di Pulau Pramuka, Kepulauan Seribu, DKI Jakarta. Teknik pengambilan sampel menggunakan metode purposive sampling artinya sesuai dengan namanya, sampel diambil dengan maksud atau tujuan tertentu. Kuadran transek berukuran 1 x 1 m diletakkan jarak 10 meter dari satu plot ke plot berikutnya dengan arah tegak lurus garis pantai sampai ke tubir atau daerah yang pertumbuhan makroalganya sangat jarang, kemudian dengan menggunakan line transek sepanjang 100 meter ditarik tegak lurus dari garis pantai ke arah tubir. Hasil penelitian yang didapatkan adalah kelimpahan Lambis yang didapatkan pada Pulau Pramuka selama penelitian seluruhnya ada 21 individu, dengan jumlah total pada Stasiun 1 yaitu 11 individu, pada Stasiun 2 dengan jumlah 2 individu dan Stasiun yang ke 3 dengan jumlah 8 individu. Spesies Lambis spp. yang ditemukan saat penelitian yaitu Lambis crocata, Lambis lambis, Lambis scorpius, dan Lambis chiragra dengan komposisi Lambis crocata 52 %, Lambis lambis 29 %, Lambis scorpius 14 % dan yang paling rendah yaitu Lambis chiragra dengan 5 %. Jenis-jenis makroalga yang ditemukan adalah spesies Sargassum sp, Halimeda sp, Padina sp, Caulerpa sp dan Euchema sp.Kata kunci : Gastropoda (Lambis spp.), Makroalga, Pulau PramukaAbstractThe study was conducted on April 2012 at Pramuka Island, Seribu Island, Jakarta. The sampling technique used purposive sampling method means that as the name suggests, the samples were taken with the intent or purpose. Transect quadrant 1 x 1 m placed a distance of 10 meters from one plot to the next plot in the direction perpendicular to the shoreline or the edge of a growth area macroalgae very rarely, and then using the line transect along the 100 meter perpendicular drawn from the shoreline to the edge. The results obtained are found in abundance Lambis the Pramuka Island during the study a total of 21 individuals, with the total at Station 1 is 11 individuals, at Station 2 with 2 individuals and the number of stations 3 were 8 individuals. Species of Lambis spp. found during the study are Lambis crocata, Lambis lambis, Lambis scorpius, and Lambis chiragra with the composition Lambis crocata 52%, Lambis lambis 29%, Lambis scorpius 14% and the lowest is Lambis chiragra by 5%. The species of macroalgae found are Sargassum sp, Halimeda sp, Padina sp, Caulerpa sp and Euchema sp.Keywords : Gastropods (Lambis spp.), Macroalgae, Pramuka Island


Author(s):  
Aneke Latuihamallo

Background: Ecologically, marine waters are divided into several zones, one of which is intertidal waters, where various types have adapted well to habitat conditions in various zones and types of ecosystems. The existence of bivalves plays an important role in the lives of fish and other biota that are bound to one food chain. Method: This research is a descriptive research that is to express descriptive information about bivalves in the waters of Metiella Cape. This study uses data collection techniques using the line transect method where each observation transect is drawn by a rope perpendicular to the coastline of 5 transects with a distance between each transect of 20 meters. As long as the transect is made of sample plots or quadrants with an area of ​​1 m X 1 m with a distance between each of the 5 meter quadrants, observation of the type of bivalvia is carried out in each quadrant. Results: The composition of Bivalvia found in Metiella Cape waters is 282 individuals classified in 2 sub-orders, 5 super families, 5 families, 7 genera, 8 species, namely: Pinna muricatta, Trachycardium rugosum, Fragum unedo, Mactra violacea, Tellina spengleri, Tellina timorensis, Gafrarium tumidum, Meretrix linnaeus. Conclusion: In the waters of Metiella Cape, 8 types of Bivalvia were found, namely: Fragum unedo, Trachycardium rugosum, Mactra violacea, Tellina spengleri, Tellina timorensis, Pinna muricata, Gafrarium tumidum and Meretrix linnaeus. The highest density value is found in transect II with a density value of 5.8 ind / m2 found in the type of Fredoum unedo and the lowest density value found on transect III with a density value of 0.2ind / m2 found in Mactra violacea.


MODUS ◽  
2016 ◽  
Vol 27 (1) ◽  
pp. 41 ◽  
Author(s):  
Sumianto Sumianto ◽  
Ch Heni Kurniawan

This study aims to determine the efect of understanding of accounting and tax provisions and the tax transparency on tax compliance. This research was conducted on individual taxpayers SMEs in Yogyakarta. This study used a survey approach as collecting data method. The sample in this study was taken using purposive sampling method. Subjects in this study are individual taxpayers, particularly SMEs in Yogyakarta. Multiple regressions with Likert scale measurement were used as the analysis tools. One hundred respondents individual taxpayers entrepreneurs, especially SMEs in Yogyakarta were used as the respondents and the fnding of this study is that the understanding of the accounting and tax provisions comprehension positive efect on tax compliance. Researchers also found that transparency does not afect the taxpayer compliance.Key Words : Accounting Comprehension , Tax Policy, Transparency, Compliance


2018 ◽  
Vol 9 (2) ◽  
pp. 33-49
Author(s):  
Karina Harjanto

The purpose of this research is to examine the effect of company’s size, profitability, solvability, and the size of the accounting firm towards audit delay. The object in this research are property and real estate companies listed in Bursa Efek Indonesia (BEI) for the period 2013-2015. The sample is selected by purposive sampling method. There are 42 companies selected as sample. Data used in this research is a secondary data such as audited financial reports. Data analysis uses multiple linear regression. The result of this research shows that company’s size, profitability, and solvability have no influence on audit delay, while the size of accounting firm has significant positive influences on audit delay. The result also shows that company’s size, profitability, solvability, and the size of of the accounting firm simultaneously influence audit delay. Keywords: audit delay, company’s size, profitability, solvability, size the accounting firm


Equity ◽  
2015 ◽  
Vol 18 (1) ◽  
pp. 71
Author(s):  
Retna Sari

This research was conducted to examine the effect age of company, likuidity and profitability to timeliness in the submission of the financial report of manufacturing in Indonesia Stock Exchange period 2012. Sample that as many as 92 companies. Sample determination technique using purposive sampling method. Hypotesis testing using a logistic anlysis. The result showed that all variables are not significantly to the timeliness. 


Author(s):  
Raja Adri Satriawan Surya ◽  
Kirmizi Kirmizi ◽  
Tita Ratna Juwita R. Ratna Juwita R.

The purpose of this research is to test the effect of working capital (cash turn over, inventory turnover and receivable turnover) towards profitability at LQ-45 companies listed at Bursa Efek Indonesia. The population of this research are all LQ-45 companies listed in Bursa Efek Indonesia (BEI). The samples are 19 LQ-45 companies listed in BEI during the year 2004 - 2006. The samples are chosen by using purposive sampling method. The data are analysed with partial test (T-test) and simultant test (F-test) by means of SPSS Ver 13.0. The results show that cash turn over, inventory turnover, and receivable turnover simultaneously have significant influence towards profitability. Partially cash turn over, inventory turnover, and receivable turnover have also significant influence to profitability.


Author(s):  
Ruchika Verma ◽  
Seema Dhawan

The study attempted to find out the quality of the evaluation procedure of B.Ed. programme of Garhwal University, the Central University in view of NCTE Norms. The study also reveals the method and procedure of evaluation according to the latest 2 years B.Ed. programme. For the study, purposive sampling method was used. The tools – questionnaire and interview schedule was developed. On the basis of findings, it concluded that the evaluation procedure was in accordance with the NCTE Norms. With the implementation of two years B.Ed. course, the method of evaluation has also become more practical oriented, which has become a remarkable achievement and surely enhance the quality of prospective teachers


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