scholarly journals Biodiversitas Burung di Areal persawahan Desa Lelema Kecamatan Tumpaan Kabupaten Minahasa Selatan

Jurnal MIPA ◽  
2017 ◽  
Vol 6 (2) ◽  
pp. 59
Author(s):  
Mercy M. Sumual ◽  
Saroyo ◽  
Marnix Langoy
Keyword(s):  
Species Diversity ◽  
Sampling Methods ◽  
Bird Species ◽  
Wiener Index ◽  
Rice Fields ◽  
Purposive Sampling ◽  
Vegetation Structures

Biodiversitas spesies burung dipengaruhi oleh keanekaragaman tipe habitat, struktur vegetasi dan ketersediaan pakan pada habitat merupakan faktor utama yang mempengaruhi keanekaragaman spesies.Penelitian ini bertujuan untuk Mendeskripsikan spesies-spesies burung yang ditemukan di areal persawahan dan menentukan tingkat biodiversitas burung di areal persawahan Desa Lelema. Penelitian ini dilaksanakan di areal persawahan Desa Lelema, waktu penelitian ialah bulan Desember 2016 sampai Maret 2017. Teknik pengambilan data menggunakan metode Purposive sampling, metode yang dipakai untuk mendapatkan data biodiversitas menggunakan indeks Shannon-Wiener. Biodiversitas burung yang ditemukan mencakup sembilan spesies hidup pada areal persawahan tersebut.Perhitungan menggunakan indeks Shannon-wiener didapati bahwa padahasil keseluruhan habitat didapat H’ 1≤  H’ ≤ 3 dengan nilai 2,062 termasuk dalam kategori sedang melimpahThe biodiversity of bird species is influenced by the diversity of habytat types, vegetation structures and especially the availability of feeds in the habytat. Which is a major factor affecting species diversity. This study aims to describe the species of birds found in rice fields in the Lelema Village Area, the research time is December 2016 until March 2017. Retrieval techniques using Purposive sampling methods, the method used to obtain biodiversity results the Shannon-Wiener index. The biodiversity of birds found in the area includes nine species. Calculation using the Shannon-wiener index resulted to H’ 1≤  H’ ≤ 3 with the value of 2,062 , including the overflowing categories.

scholarly journals KEANEKARAGAMAN AMPHIBIA DI KAMPUS UNIVERSITAS SAM RATULANGI

PHARMACON ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 601
Author(s):  
Greace Kurniawati Liando ◽  
Deidy Yulius Katili ◽  
Lalu Wahyudi
Keyword(s):  
Sampling Methods ◽  
Diversity Index ◽  
Wiener Index ◽  
Bufo Melanostictus ◽  
Research Results ◽  
Purposive Sampling ◽  
Bufo Gargarizans ◽  
The University

Amphibia is a vertebrate animal that lives in two realms: water and land. Amphibia consists of three orders, namely Caecilia, Caudata and Anura. Most amphibians have limbs such as limbs and fingers. This research aims to determine the extent of amphibian diversity that exists at the University Sam Ratulagi Manado campus based on the value of Shannon-Wiener index. The study used purposive sampling methods conducted in September-November 2017. Based on the research results there are six types of amphibia found namely, Peltophryne Lemur, Phrynoidis asper, Ingerophrynus biporcatus, Bufo melanostictus, Bufo bankorensis, and Bufo Gargarizans. The most widely discovered amphibian is Phrynoidis asper and the fewest found is Bufo bankorensis. The diversity index of amphibians observed on the campus of Unsrat is included in the medium with the value of Indeks1,783.Keywords: Diversity, Amphibia.ABSTRAKAmphibia merupakan hewan bertulang belakang yang hidup di dua alam yaitu air dan darat. Amphibia terdiri dari tiga ordo, yaitu Caecilia, Caudata dan Anura. Sebagian besar amphibia mempunyai anggota gerak seperti tungkai dan jari-jari. Penelitian ini bertujuan untuk menentukan tingkat keanekaragaman amphibia yang ada di Kampus Universitas Sam Ratulagi Manado berdasarkan nilai indeks Shannon-Wiener. Penelitian ini menggunakan metode purposive sampling yang dilaksanakan pada bulan September-November 2017. Berdasarkan hasil penelitian terdapat enam jenis amphibia yang ditemukan yaitu, Peltophryne lemur, Phrynoidis asper, Ingerophrynus biporcatus, Bufo melanostictus, Bufo bankorensis, dan Bufo gargarizans. Amphibia yang paling banyak ditemukan adalah Phrynoidis asper dan yang paling sedikit ditemukan adalah Bufo bankorensis. Indeks keanekaragaman dari amphibia yang diamati terdapat di kampus Unsrat termasuk dalam kategori sedang dengan nilai indeks1,783.Kata kunci: Keanekaragaman, Amphibia.

On the Baeocera Erichson (Coleoptera: Staphylinidae: Scaphidiinae) of Sabah, Malaysia, and a tale on mystified biodiversity

2021 ◽  
Vol 23 (2) ◽  
pp. 23-42
Author(s):  
IVAN LÖBL ◽  
ALEŠ SMETANA
Keyword(s):  
New Species ◽  
Species Diversity ◽  
Key Words ◽  
Sampling Methods ◽  
Biodiversity Study ◽  
First Time

Quantitative attemps to assess species diversity in the absence of a robust taxonomy are questioned. In addition, the sampling methods may be a major source of uncertainty, as illustrated in a commented biodiversity study of the Coleoptera of Sabah. The Sabah members of the staphylinid genus Baeocera Erichson are reviewed and keyed, the following new species are described: B. omnigena Löbl sp. nov., B. rudis Löbl sp. nov., B. secreta Löbl sp. nov., B. sedata Löbl sp. nov., B. segregata Löbl sp. nov., B. seiugata Löbl sp. nov., B. semirufa Löbl sp. nov. Baeocera barbara Löbl, B. obliqua (Löbl), B. rufula (Löbl) and B. serendibensis (Löbl) are reported for the first time from Malaysia, B. doriae (Pic) and B. sarawakensis Löbl are new to Sabah and B. kinabalua Löbl is new to Sarawak. Key words: biodiversity, trends, taxonomy, insects, shining fungus beetles, Borneo

scholarly journals Bird species diversity in Altai riparian landscapes: Wood cover plays a key role for avian abundance

2019 ◽  
Vol 9 (17) ◽  
pp. 9634-9643
Author(s):  
Na Li ◽  
Yuehua Sun ◽  
Hongjun Chu ◽  
Yingjie Qi ◽  
Lan Zhu ◽  
...  
Keyword(s):  
Species Diversity ◽  
Bird Species ◽  
Avian Abundance ◽  
Riparian Landscapes ◽  
Bird Species Diversity

scholarly journals Community structure of arboreal and soil-dwelling arthropods in three different rice planting indexes in freshwater swamps of South Sumatra, Indonesia

2020 ◽  
Vol 21 (10) ◽  
Author(s):  
Tili Karenina ◽  
Siti Herlinda ◽  
Chandra Irsan ◽  
Yulia Pujiastuti ◽  
Hasbi Hasbi ◽  
...  
Keyword(s):  
Community Structure ◽  
Species Diversity ◽  
Rice Fields ◽  
Herbivorous Insects ◽  
Arthropod Community ◽  
Pitfall Traps ◽  
Sogatella Furcifera ◽  
Pardosa Pseudoannulata ◽  
Arthropod Species ◽  
Predatory Arthropods

Abstract. Karenina T, Herlinda S,  Irsan C, Pujiastuti Y, Hasbi, Suparman, Lakitan B, Hamidson H, Umayah A. 2020. Community structure of arboreal and soil-dwelling arthropods in three different rice planting indexes in freshwater swamps of South Sumatra, Indonesia. Biodiversitas 21: 4839-4849.  Differences in the index of rice planting can cause differences in the structure of the arthropod community. This study aimed to characterize the community structure of the arboreal and soil-dwelling arthropods in the three different rice planting indexes (PI) in the freshwater swamps of South Sumatra.  Sampling of the arthropods using D-vac and pitfall traps was conducted in the three different rice planting, namely one (PI-100), two (PI-200), and three (PI-300) planting indexes of the rice. The results of the study showed that the dominant predatory arthropod species in the rice fields were Pardosa pseudoannulata, Tetragnatha javana, Tetragnatha virescens, Pheropsophus occipitalis, Paederus fuscipes, and the dominant herbivorous insects were Leptocorisa acuta, Nilavarpata lugens, and Sogatella furcifera. The abundance of arboreal predatory arthropods was the highest in the PI-300 rice and the lowest in the PI-100 rice.    The abundance of soil-dwelling arthropods was the highest in the rice PI-100, and low in the rice PI-200 and PI-300, but the rice PI-100 had the highest abundance of the herbivorous insects. The rice PI-300 was the most ideal habitats to maintain the abundance and the species diversity of the arboreal predatory arthropods. Thus, the rice cultivation throughout the year was profitable in conserving and maintaining the abundance and species diversity of the predatory arthropods.

scholarly journals The Species Diversity and Structure of The Limited Production Forest in Arui Watershed of Manokwari District of West Papua, Indonesia

2019 ◽  
Vol 11 (2) ◽  
pp. 279-288
Author(s):  
Mahmud Mahmud ◽  
Ambar Kusumandari ◽  
Sudarmadji Sudarmadji ◽  
Nunuk Supriyatno
Keyword(s):  
Species Diversity ◽  
Wiener Index ◽  
Systematic Sampling ◽  
Forest Conversion ◽  
Vegetation Analysis ◽  
Importance Value Index ◽  
Importance Value ◽  
Forestry Sector ◽  
West Papua ◽  
Chisocheton Ceramicus

The detailed causal factors of flood have not been established, whether because of the damage of upper watershed, sedimentation resulting in shallow river, forest conversion, the decrease in abundance and structure or high rainfall. The study aimed at finding out the species diversity and structure of the limited production forest (LPF) from the seedling to the tree stage of Arui watershed in Manokwari district. The species diversity was determined based on Shannon-Wiener index, while vegetation structure was determined based on Importance Value Index. There were totally 92 plots of samples drawn using systematic sampling. The results of vegetation analysis showed that there were 174 species of 43 families with the species diversity of 1.5-1.8 that was categorized as moderate. The four dominant species that were always found in seedling, sapling, pole and tree stages included: Pometia pinnata, Teijsmanniodendron bogoriense, Chisocheton ceramicus, and Horsfieldia irya. The conversion of the LPF into non-forestry sector for the purpose of accelerating development must be reviewed by considering hydrology, land, biodiversity, and social and regional aspects in order to prevent and to reduce flood in the coming days.

scholarly journals Effect of Farming and Rainfall on the Species Diversity, Population Density and Community Structure of Birds Breeding in the Kalahari Woodland, NE Namibia

Zoodiversity ◽  
2021 ◽  
Vol 55 (6) ◽  
pp. 451-458
Author(s):  
G. Kopij
Keyword(s):  
Community Structure ◽  
Species Diversity ◽  
Bird Species ◽  
Diversity Indices ◽  
Annual Rainfall ◽  
Feeding Guilds ◽  
Line Transect ◽  
Population Densities ◽  
Feeding Guild ◽  
Turtle Dove

The line transect method has been employed to assess species diversity, population densities and community structure of birds breeding in a mosaic of Kalahari Woodland and farmland, NE Namibia. The transect, 4.5 km long, was surveyed in 2014 and 2015. The total annual rainfall in 2014 was much higher than in 2015 (427 mm vs. 262 mm). In total, 40 breeding species in 2014, and 46 in 2015 were recorded. Six species were dominant in 2014 (Cape Turtle Dove, Laughing Dove, Emerald-spotted Dove, Blue Waxbill, and White-browed Scrub Robin) and only three species in 2015 (Cape Turtle Dove and Blue Waxbill and Yellow-fronted Canary). Although the cumulative dominance in 2014 almost doubled that in 2015, the Community Index in both years was almost identical. Also diversity indices and evenness index were very similar in both years compared. Granivorous birds were the most numerous feeding guild. Their contribution was similar in 2014 and 2015 (46.7 % vs. 43.4 %). Two other feeding guilds, insectivores and frugivores, comprised together more than 50 % in both years. The number of bird species and species diversity were not influenced by the differential rainfall. However, contrary to expectations, population densities of most bird species (at least the more numerous ones) were higher in the year with lower than in the year with higher rainfall. The number of species and species diversity was similar in the farmland and in neighbouring Kalahari Woodland in a pristine stage. However, population densities of most species were lower in the farmland than in the pristine woodland.

scholarly journals ANALISIS VEGETASI TUMBUHAN PENGHASIL BUAH-BUAHAN DALAM KAWASAN TEMBAWANG DUSUN TOHO RABA DESA RASAN KECAMATAN NGABANG KABUPATEN LANDAK

2018 ◽  
Vol 7 (1) ◽  
Author(s):  
Paulus Toni ◽  
Ratna Herawatiningsih ◽  
Lolyta Sisillia
Keyword(s):  
Species Diversity ◽  
Natural Resource ◽  
Sampling Technique ◽  
Seedling Stage ◽  
Survey Method ◽  
Purposive Sampling

Forest is an important natural resource for people’s lives, including various fruits that have been used for food and other necessities. This research aimed to analyze Fruit-producing Plant Vegetations that people consume in Tembawang Area Dusun Toho Raba Desa Rasan Ngabang District Landak Regency. This research used survey method. The vegetation was analyzed by using line compartment method and the observation plots were placed according to purposive sampling, one of the most frequently used sampling technique in research. The transects were made of 3 lines with the space of 200 m between the lines; line 1 with a length of 360 m, line 2 with a length of 420 m, line 3 with a length of 460 m; and 62 observation plots.  The total area of observation was 2.48 Ha. There were 46 types of plant pound at all growth levels. 23 types of Fruit-producing Plant found in observation plots were composed of 19 types of seedling stage, 18 types of saplings stage, 18 types of pole stage, and 20 types of tree stage.Keywords : Area of Tembawang, Fruits, Species Diversity, Trees

scholarly journals EFEITO DA EXPLORAÇÃO NA RIQUEZA FLORÍSTICA E DIVERSIDADE EM UMA FLORESTA ECOTONAL DA REGIÃO NORTE MATO-GROSSENSE

FLORESTA ◽  
2011 ◽  
Vol 41 (2) ◽  
Author(s):  
Chirle Colpini ◽  
Versides Sebastião de Moraes e Silva ◽  
Thelma Shirlen Soares ◽  
José Vespasiano Lisboa Assumpção ◽  
Roberto Chiaranda
Keyword(s):  
Species Diversity ◽  
Floristic Composition ◽  
Wiener Index ◽  
Northern Region ◽  
Floristic Diversity ◽  
Mato Grosso ◽  
Floristic Richness ◽  
Before And After ◽  
Logged Forest ◽  
Southern Amazonia

O objetivo deste estudo foi avaliar as mudanças ocorridas na riqueza e diversidade de espécies em uma floresta ecotonal na região norte mato-grossense. Os dados foram coletados em três ocasiões (2001, antes da exploração, e em 2003 e 2007, após a exploração), em 74 parcelas de 0,25 ha, sendo 69 para estudar a floresta não explorada e 5 para a explorada, com a retirada dos fustes de árvores com diâmetros comercialmente aceitos no mercado. Todos os indivíduos com diâmetro a 1,3 m de altura do solo (Dap) ≥ 17 cm foram mensurados e identificados. A diversidade florística foi avaliada por meio do quociente de mistura de Jentsch e pelo índice de Shannon-Wiener e a equabilidade pelo índice de Pielou. A variação da riqueza e diversidade de espécies antes e após a exploração madeireira foi pequena, o que confirma o baixo impacto da exploração na composição e diversidade das espécies da floresta.Palavras-chave: Diversidade; equabilidade; Amazônia Meridional. AbstractLogging effects on floristic richness and species diversity in an ecotonal forest in northern region of Mato Grosso state, Brazil. The aim of this research was to evaluate changes in relation to floristic richness and species diversity in an ecotonal forest in northern region of Mato Grosso State, Brazil. Data had been collected along three different moments (2001 [before logging], in 2003 and 2007 [after logging]) in 74 0.25-ha plots (69 in unlogged forest and 5 in logged forest). Trees with diameter ≥ 17 cm and 1.3 m height (dbh) had been measured and identified. Floristic diversity was evaluated by Jentsch Coefficient of Mixture and Shannon-Wiener index as well as its equability by Pielou’s Index. There were little variations before and after logging in relation to floristic richness and species diversity, it confirms low impact of exploration on floristic composition and species diversity of the forest.Keywords: Diversity; equability; Southern Amazonia. 

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