KELIMPAHAN DAN KEANEKARAGAMAN JENIS-JENIS KEPITING DI SUBSTRAT MANGROVE PERAIRAN MERAS DAN MOLAS KECAMATAN BUNAKEN KOTA MANADO SULAWESI UTARA

Crab of the genus Uca is one type of crustacean that makes mangroves a habitat to carry out their life cycle in order to remain sustainable. The purpose of this research is to identify the first, the second is to calculate the abundance, species diversity, dominance, and the third is to know the state of the aquatic environment around pH, temperature, salinity and substrate. The method used is the cruising method and the quadratic line transect method. The method of roaming as far as 300 m. While the line transect method is carried out by drawing three transect lines along 28 m. The identification results in Meras waters found 6 species. Based on data analysis using the cruising method, the number of individuals in Meras waters is 383 individuals, while in Molas waters there are 210 individuals. Based on data analysis using the quadratic line transect method, the species abundance index in Meras waters is 6,767 ind/m2, while in Molas waters it is 4,533 ind/m2. The value of H' at two locations is moderate. The value of C in two locations is low. Keywords: Meras, Molas, Crabs, abundance, species diversity, dominance.

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COMMUNITY STRUCTURE AND SPATIAL DISTRIBUTION OF FISH JUVENILE IN MANGROVE AND SEAGRASS HABITATS IN PRAMUKA ISLAND

Jurnal Ilmu dan Teknologi Kelautan Tropis ◽

10.28930/jitkt.v8i1.12715 ◽

2016 ◽

Vol 8 (1) ◽

Author(s):

Fathul Amin ◽

M Mukhlis Kamal ◽

Am Azbas Taurusman

Keyword(s):

Spatial Distribution ◽

Community Structure ◽

Fish Species ◽

Species Abundance ◽

Fish Distribution ◽

Line Transect ◽

Observation Area ◽

Significant Difference ◽

Line Transect Method ◽

Distribution Of Fish

This study was aimed to investigate the community structure of fish juvenile, spatial distribution and similarity from both adjacent habitats of mangrove and seagrass. This study was conducted in the eastern part of Pramuka island from April to June 2015. The samples were collected by using line transect method in three observation areas that were spatially connected i.e., mangrove, transition and seagrass zones. The result of the study from three observation zones revealed that there were found 24 species of fishes from 15 families i.e., Siganidae (4 species), Apogonidae (3 species), Ger-reidae (2 species), Terapontidae (2 species), Gobiidae (2 species), Labridae (2 species), Mugilidae, Nemipteridae, Hemiramphidae, Sphyraenidae, Monacanthidae, Atherinidae, Pomacentridae, Lut-janidae, and Lethrinidae (each of them 1 species). According to community structure, the adjacent ob-servation zones did not show a significant difference in the number of species, abundance, and bio-mass. According to fish distribution, fish species in transition zone and seagrass zone were relatively similar and dominated by Gerres oblongus, Fibramia lateralis, and Siganus canaliculatus. Mean-while, in mangrove zone revealed a significant different of fish species than in transition and seagrass zones. In mangrove zone, fish species was dominated by Gerres oblongus and Siganus guttatus. Keywords: spatial distribution, juvenile, mangrove, seagrass, pramuka Island, Siganidae

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Species diversity, abundance, and wildlife conservation status in Batang Gadis National Park, North Sumatra, Indonesia

Biodiversitas Journal of Biological Diversity ◽

10.13057/biodiv/d221157 ◽

2021 ◽

Vol 22 (11) ◽

Author(s):

IFHAM FUADI RAMBE ◽

Ridahati Rambey ◽

SAHLAN SIREGAR

Keyword(s):

Species Diversity ◽

National Park ◽

Wildlife Conservation ◽

Conservation Status ◽

Species Abundance ◽

Macaca Nemestrina ◽

Permanent Plots ◽

Abundance Index ◽

The World ◽

North Sumatra

Abstract. Rambe IF, Rambey R, Siregar S. 2021. Species diversity, abundance, and wildlife conservation status in Batang Gadis National Park, North Sumatra, Indonesia. Biodiversitas 22: 5189-5196. Indonesia is one of the countries with the highest biodiversity in the world. Furthermore, the biodiversity of floral and faunal species is still being monitored and maintained, one of which is in the forest of the National Park. Batang Gadis National Park is a habitat for various species of endemic Sumatran wildlife, most of which are endangered species in the world. Therefore, this study aimed to inventory wild animals and to calculate their abundance in the Batang Gadis National Park. The study used camera traps as recording devices that were installed on permanent and non-permanent plots based on evidential animal trajectories in the National Park Management Section Region III Resort 7 Forest of Ampung Padang Forest in 2018. In the permanent plot, 10 species were documented within nine families, namely the Felidae, Tapiridae, Cervidae, Viverridae, Ursidae, Tragulidae, Suidae, Tupaiidae, and the Cercopithecidae. The highest species abundance was Macaca nemestrina (36.17%), and the second-highest was Muntiacus muntjak Zimmermann (14.89%), and then Tapirus indicus Desmarest (10,64%). Also, the Sumatran tiger (Panthera tigris sumatrae Pocock) was in the fourth position with a value of 10.63% of species abundance. Meanwhile, the lowest abundance index value was from clouded leopard (Neofelis diardi Cuvier) with 2.12%. The abundance of species from the non-permanent plots using camera trap documented a total of 13 species with 12 families namely Felidae, Tapiridae, Cervidae, Hystricidae, Viverridae, Muridae, Phasianidae, Tragulidae, Suidae, Muscicapidae, Tupaiidae, and Cercopithecidae. The highest was documented from wild boar (Sus scrofa Linnaeus) at 42.48% and the second-highest species abundance was macaque (N. nemestrina) at 26.144%. The lowest species abundance index values were tapir (T. indicus) and Javan blue robin (Myiomela diana Lesson) with 0,33% and 0,33 %, respectively. The existence of documented wildlife species in our study affirmsed the importance of Batang Gadis National Park as a natural habitat for some key and protected species.

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Microbial community modelling and diversity estimation using the hierarchical Pitman-Yor process

10.1101/2020.10.24.353599 ◽

2020 ◽

Author(s):

Kevin McGregor ◽

Aurélie Labbe ◽

Celia MT Greenwood ◽

Todd Parsons ◽

Christopher Quince

Keyword(s):

Species Diversity ◽

Gibbs Sampler ◽

Species Abundance ◽

Human Microbiome ◽

Target Population ◽

Vital Role ◽

Model Parameters ◽

Species Abundance Distributions ◽

Number Of Individuals ◽

Diversity Estimates

AbstractBackgroundThe human microbiome comprises the microorganisms that inhabit the various locales of the human body and plays a vital role in human health. The composition of a microbial population is often quantified through measures of species diversity, which summarize the number of species along with their relative abundances into a single value. In a microbiome sample there will certainly be species missing from the target population which will affect the diversity estimates.MethodsWe employ a model based on the hierarchical Pitman-Yor (HPY) process to model the species abundance distributions over multiple microbiome populations. The model parameters are estimated using a Gibbs sampler. We also derive estimates of species diversity as a function of the HPY parameters.ResultsWe show that the Gibbs sampler for the HPY model performs well in the simulation study. We also show that the estimates of diversity from the HPY model improve over naïve estimates when species are missing. Similarly the HPY estimates tend to perform better than the naïve estimates when the number of individuals sampled from a population is small.

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COMMUNITY STRUCTURE AND SPATIAL DISTRIBUTION OF FISH JUVENILE IN MANGROVE AND SEAGRASS HABITATS IN PRAMUKA ISLAND

Jurnal Ilmu dan Teknologi Kelautan Tropis ◽

10.29244/jitkt.v8i1.12715 ◽

2016 ◽

Vol 8 (1) ◽

pp. 187-199 ◽

Cited By ~ 1

Author(s):

Fathul Amin ◽

M Mukhlis Kamal ◽

Am Azbas Taurusman

Keyword(s):

Spatial Distribution ◽

Community Structure ◽

Fish Species ◽

Species Abundance ◽

Fish Distribution ◽

Line Transect ◽

Siganus Canaliculatus ◽

Significant Difference ◽

Line Transect Method ◽

Distribution Of Fish

This study was aimed to investigate the community structure of fish juvenile, spatial distribution and similarity from both adjacent habitats of mangrove and seagrass. This study was conducted in the eastern part of Pramuka island from April to June 2015. The samples were collected by using line transect method in three observation areas that were spatially connected i.e., mangrove, transition and seagrass zones. The result of the study from three observation zones revealed that there were found 24 species of fishes from 15 families i.e., Siganidae (4 species), Apogonidae (3 species), Ger-reidae (2 species), Terapontidae (2 species), Gobiidae (2 species), Labridae (2 species), Mugilidae, Nemipteridae, Hemiramphidae, Sphyraenidae, Monacanthidae, Atherinidae, Pomacentridae, Lut-janidae, and Lethrinidae (each of them 1 species). According to community structure, the adjacent ob-servation zones did not show a significant difference in the number of species, abundance, and bio-mass. According to fish distribution, fish species in transition zone and seagrass zone were relatively similar and dominated by Gerres oblongus, Fibramia lateralis, and Siganus canaliculatus. Mean-while, in mangrove zone revealed a significant different of fish species than in transition and seagrass zones. In mangrove zone, fish species was dominated by Gerres oblongus and Siganus guttatus. Keywords: spatial distribution, juvenile, mangrove, seagrass, pramuka Island, Siganidae

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Avifaunal diversity in relation to vegetation height and coverage in grasslands of Shuklaphanta Wildlife Reserve

Nepal Journal of Environmental Science ◽

10.3126/njes.v1i1.36546 ◽

2013 ◽

Vol 1 ◽

pp. 36-39

Author(s):

S. Dhoubhadel

Keyword(s):

Species Diversity ◽

Ecosystem Health ◽

Ecological Integrity ◽

Bird Species ◽

Line Transect ◽

Grassland Ecosystem ◽

Resident Species ◽

Vegetation Height ◽

Line Transect Method ◽

Wildlife Reserve

The grasslands of Nepal's Terai are extremely rich in bird species with several globally threatened species. These birds are often quite sensitive to changes in the habitat quality and microclimate around them making them ideal indicators of the grassland ecosystem health. Unfortunately, very little is known about the grassland avifauna. This study was conducted to determine the avifaunal composition and diversity with respect to the vegetation height and patch openness in the grasslands of Shuklaphanta Wildlife Reserve by using open width line transect method along fire-lines. The birds and the vegetation were recorded using BBIRD protocol and the species diversity was calculated. The Kruskal-Walli test for differences in median populations and Canonical Correspondence Analysis (CCA) were also conducted. This study recorded 104 species birds belonging to 39 families among which 29 species were insectivorous, 17 herbivorous, 17 carnivorous and the rest omnivorous with 94 resident species and 10 summer visitor species. Covered patches of short grassland had highest number of species while covered patches of tall grasslands had the highest species diversity. The results from KruskallWallis test and CCA highlighted the need for the maintenance of ecological integrity of all the grassland habitat areas.

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An appraisal of avian species diversity in and around Purulia Town, West Bengal, India

Journal of Threatened Taxa ◽

10.11609/jott.4733.13.3.17906-17917 ◽

2021 ◽

Vol 13 (3) ◽

pp. 17906-17917

Author(s):

Swastik Mahato ◽

Sudipta Mandal ◽

Dipanwita Das

Keyword(s):

Species Richness ◽

Species Diversity ◽

Systematic Study ◽

Biological Diversity ◽

West Bengal ◽

Migratory Birds ◽

Seasonal Abundance ◽

Line Transect ◽

Line Transect Method ◽

Subsequent Identification

Purulia, the westernmost district of West Bengal, India is least explored with respect to the biological diversity and relatively little information is available to date. The present study was conducted from February 2017 to January 2018 to document avifaunal diversity in Purulia Town and surroundings. Sampling was done through the line transect method with photographic documentation and subsequent identification following suitable keys. Species richness and seasonal abundance were calculated. Altogether, 115 species of birds belonging to 19 orders and 43 families were recorded during the study period. Passeriformes was the most dominant order represented by 46 species during the study. The Shannon-Wiener (H’) value was highest for January (1.564). A large number of migratory birds visit Purulia every year mostly during winter and it is reflected in the present study. Diverse foraging habit among the birds was observed during the study period and omnivorous birds (29%) were found in highest number followed by invertivores (26%), carnivores (25%), granivores (8%), herbivores (7%), frugivores (3%), and nectarivores (2%). The present study is a preliminary effort to document the avifaunal diversity of Purulia and a more extensive systematic study should be carried out to investigate and protect the avifaunal diversity of this region.

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Avian Diversity on the Sandstone Cliff Outskirts of the Maloti/Drakensberg ‘Hot-Spot’ Area in Southern Africa

Vestnik Zoologii ◽

10.2478/vzoo-2013-0024 ◽

2013 ◽

Vol 47 (3) ◽

pp. 41-46

Author(s):

G. Kopij

Keyword(s):

Species Diversity ◽

Hot Spot ◽

Line Transect ◽

Avian Diversity ◽

Population Densities ◽

Feeding Guild ◽

Spot Area ◽

High Species Diversity ◽

Line Transect Method ◽

Avian Assemblages

During the year 1999-2001, avian assemblages associated with cliffs and bushy vegetation of the Clarens Formation have been quantified by means of the line transect method (total length of transects - 107 km) in Lesotho lowlands. In total, 80 species resident in these habitats were recorded. Overall, six species were classified as dominants: Serinus canicollis, Prinia maculosa, Streptopelia senegalensis, Emberiza tahapisi, Emberiza capensis and Cisticola fulvicapilla. Together they comprised 41.4 % of all breeding pairs. Ten other species were classified as subdominants (33.9 %). Granivores were the most numerous feeding guild (31 species; 48.0 % of all pairs), followed by insectivores (27 species; 32.3 %) and frugivores (11 species; 17.4 %). The most numerous nesting guild were shrub/tree nesting birds (47.2 %). Proportions for some congereric species were calculated. The bushy vegetation is characterized by high species diversity and relatively high population densities of some species.

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Keanekaragaman Jenis Amfibi untuk Mendukung Kegiatan Ekowisata di Desa Braja Harjosar Kabupaten Lampung Timur

Biosfera ◽

10.20884/1.mib.2017.34.3.458 ◽

2017 ◽

Vol 34 (3) ◽

pp. 103 ◽

Cited By ~ 2

Author(s):

Angga Arista ◽

Gunardi Djoko Winarno ◽

Rudi Hilmanto

Keyword(s):

Species Richness ◽

Life Cycle ◽

Interesting Case ◽

Survey Method ◽

Line Transect ◽

Margalef Index ◽

Line Transect Method

Amphibian life in nature is an interesting case which can be an ecotourism interest. The life cycle as well as the uniqe behaviours of the amphibi, is an interesting case to support the ecotourism activities. This research intends to determine the richness of amphibian minds, the diversity of amphibian kinds, and the amphibian distribution in order to support the ecotourism activities and to determine the society perception in utilizing the amphibi for the ecotourism activities. A combination of line transect method and Visual Encounter Survey method were used to know the species richness diversity and the distribution. One score one indicator quisioner was used to know the society perception against the amphibi to support ecotourism. The research was conducted in Braja Harjasari Village, East Lampung Regency during March to April 2017. Data analyzing was used a Shannon-wiener and Margalef index. The sosciety perception was analyzed descriptively and showed in a chart. The result showed that the amphibian richness was 0,6 which mean low, the diversity was 1,0 which meant medium, the shannon-wiener and margalef index was 0,9 which mean low community was stable and each kind of the amphibi was distributed equally. The society perception against the amphibi to support the ecotourism activities was mostly positive.

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Pengaruh Pemberian Moringa oleifera Terhadap Kuantitas dan Kualitas Semen Sapi Peranakan Ongole

Jurnal Ilmu dan Teknologi Peternakan Tropis ◽

10.33772/jitro.v7i2.10886 ◽

2020 ◽

Vol 7 (2) ◽

pp. 119

Author(s):

Lukman Affandhy ◽

Muchamad Luthfi ◽

Dian Ratnawati ◽

Frediansyah Firdaus

Keyword(s):

Data Analysis ◽

Analysis Of Variance ◽

Research Method ◽

Moringa Oleifera ◽

The Third ◽

Randomized Design ◽

Leaf Powder ◽

Completely Randomized Design ◽

Second Period

ABSTRAK Penelitian bertujuan untuk mengetahui pengaruh pemberian bubuk daun Moringa oleifera (MO) terhadap kuantitas dan kualitas semen sapi peranakan ongole (PO). Metode penelitian menggunakan percobaan lapang dengan rancangan acak lengkap dengan tiga perlakuan pemberian MO sebesar 0 kg/ekor/hari (P1); 0,05 kg/ekor/hari (P2) dan 0,1 kg/ekor/hari (P3). Analsis data menggunakan one way analysis of variance. Masing-masing perlakuan terdiri atas empat ekor dengan tiga periode pengamatan sebagai ulangan, yaitu periode pertama dan ketiga tanpa MO, dan periode kedua diberikan MO pada P2 dan P3. Hasil penelitian menunjukan bahwa volume dan pH semen perlakuan P1, P2 dan P3 tidak berbeda semua periode pengamatan. Motilitas massa spermatozoa P2 dan P3 periode kedua dan ketiga menunjukan nilai +++ berbeda nyata (P<0,05) dibandingkan dengan P1 (++); motilitas individu perlakuan P1 menunjukkan nilai terendah 60,56±2,94 % (P<0,05) dibandingkan P2 dan P3 pada periode kedua dan ketiga (75,50±2,29 dan 72,50±2,34%). Konsentrasi spermatozoa P2 dan P3 periode kedua dan ketiga menunjukkan rata-rata >1.350 juta/ml berbeda nyata (P<0,05) daripada P1 (876±152juta/ml), sedangkan total spermatozoa motil menunjukkan nilai tertinggi 5.647±829 juta/ml pada P3 periode kedua.Viabilitas spermatozoa P2 dan P3 menunjukkan nilai >88-89 % beda nyata (P<0,05) daripada P1 (<84 %) pada periode kedua dan ketiga, sedangkan nilai abnormalitas spermatozoa yang terbaik adalah P2 sebesar 4,30% pada periode kedua dan P3 sebesar 5,33% pada periode ketiga. Disimpulkan pemberian bubuk daun MO dengan dosis 0,1 kg/ekor/hari dapat memperbaiki kuantitas dan kualitas semen (viabilitas dan total spermatozoa motil) sapi pejantan PO.Kata kunci: kuantitas dan kualitas semen, Moringa oleifera, sapi pejantan ABSTRACTThe research aimed to determine the effect of Moringa oleifera (MO) leaf powder on the quantity and quality of semen of ongole crossbreed. The research method used was a field experiment with a completely randomized design with three treatments giving MO of 0 kg/head/day (P1); 0.05 kg/head/day (P2) and 0.1 kg/head/day (P3). Each treatment consisted of four heads with three periods of observation as replications, namely the first and third periods without MO, and the second period was given MO on P2 and P3. Data analysis used a one-way analysis of variance. The results showed that the volume and pH of semen treated P1, P2, and P3 didn’t different in all observation periods. The second and third period spermatozoa mass motility of P2 and P3 showed that the value of +++ was significantly different (P<0.05) compared to P1 (++); Individual motility of P1 treatment showed the lowest value 60,56±2,94 % (P<0.05) compared to P2 and P3 in the second and third periods (75,50±2,29 and 72,50±2,34%). The second and third periods of P2 and P3 spermatozoa concentrations showed an average of >1,350 million/cc significantly different (P<0.05) than P1 (876±152 million/cc), while the total motile spermatozoa showed the highest value of 5,647±829 million/cc in the second period P3. The spermatozoa viability of P2 and P3 showed values >88-89% significantly different (P<0.05) than P1 (<84%) in the second and third periods, while the best spermatozoa abnormalities were P2 at 4.30% in the second period and P3 at 5.33% in the third period. It was concluded that the giving of MO leaf powder at a dose of 0,1 kg/head/day could improve the quantity and quality of semen (viability and total motile spermatozoa) of Ongole Crossbreed bulls. Keywords: bulls, Moringa oleifera, quantity and quality of semen

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Minangkabau Language Maintenance by the Association of Sei Jaring Community in Medan

LINGUISTIK TERAPAN ◽

10.24114/lt.v11i2.2698 ◽

2014 ◽

Vol 11 (2) ◽

Author(s):

Yenita Uswar ◽

Amrin Saragih ◽

Tina Mariany Arifin

Keyword(s):

Qualitative Research ◽

Data Analysis ◽

Language Maintenance ◽

Young Generation ◽

Third Generation ◽

The Third ◽

Danger Level

The objectives of this qualitative research were (1) to identify the factors that affect the Minangkabau language (ML) maintenance in Medan, (2) to discover the parents’ efforts in maintaining ML in Medan and (3) to find out the reason why the speakers have to maintain ML. The souree of data is the nembers of the Association of Sei Jaring Community (Ikatan Warga Sei Jaring: IWS) in Medan. The sample was 10 families including 10 parents and their children. The instruments of this study are a questionnaire and an interview. The questionnaire was used to answer the factors affected the maintenance of ML and how factors affected the maintenance of ML. The interview was used to discover the influence why Minangkabau’s people have to maintain ML. There are four factors in ML maintenance, the parents’ role, the role of family, the intramarriage and homeland visits. After distributing questionnaire and did some interviews it is found that IWS especially for the third generation (children) has the danger level in ML when they communicate to each other. Meanwhile, the data analysis also shows that both fathers and mothers communicate to each other with ML. This condition occurred because of the influence of the environment. Parents have to keep communication and teaching Minangkabau language continuously to their children. so, the young generation can keep the existence of ML for their future. Keywords: Minangkabau Language Maintenance, parents’ efforts, the young generation.

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