Biotropic : The Journal of Tropical Biology
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Variasi Morfologi Burung Perkutut Berdasarkan Ras dan Warna Bulu yang Diternakkan di Daerah Istimewa Yogyakarta
Full text linkThe zebra dove (Geopelia striata) has been a long-time favorite of many people for bird-keeping and birdsong competition which are common pastimes in Southeast Asia. The diversity of zebra doves below the species level still needs to be investigated in terms of breeding, projecting the development of internal or external bird-keeping markets, and conservation for populations in the wild as potential damage-control of the captured bird market. This study aimed to study the morphologically significant differences between the main groups of zebra doves (Local, Bangkok, Cemani Majapahit, Cemani, and Golden) and certain coat colors (silver, mocca, white striated, white cotton, cream, and black) which are traded in Special Region of Yogyakarta. The research was divided into two stages, namely surveys to breeders and hobbyists and morphometric and qualitative data collection, namely color. The results of the morphometric measurements of each individual were then grouped using SPSS Statistics and the Unweighted Pair Group Method with Arithmetic (UPGMA) method to determine whether the variables tested are significantly different. To see the clustering and distribution of the tested variables, Principal Component Analysis was performed. The results obtained show the amount of overlap in the scree plot, this proves that there is no significant difference between the race and color variants of zebra doves grouped by traders in the Special Region of Yogyakarta
Uji Antagonis Bakteri Simbion Spons dari Pulau Bakar terhadap Jamur Candida Albicans
Full text linkSponge symbiont bacteria are microbes that live in marine sponges and are known to have bioactive compounds with antimicrobial propeties. Sea sponges on Bakar Island are known to contain many types of symbiotic bacteria. This study was conducted to test the ability of the sponge symbiont bacteria to inhibit the growth of the fungus Candida albicans. The study was carried out in 3 stages, with were sample collection, isolation and antifungal activity test using the well diffusion technique. Sponge symbiont bacteria were obtained as many as 16 isolates and were successfully tested for as many as 11 isolates for their antifungal abilities. Of the 11 isolates, based on the characteristics tested, 1 isolate (SPS4F2) was obtained with strong criteria (12.06 mm) and 10 (SPS1, SPS3, SPS5, SPS6, SPS7 SPS8, SPS9, SPS10, SPS11, SPS12, SPS13) others with moderate criteria (±6.00-9.00). The results of the study can be concluded that the sponge symbiont bacteria from Bakar’s Island mostly have the potential as antifungals against Candida albicans and based of characterization including the Bacillus
Pengaruh Pemberian Bioherbisida Ekstrak Daun Ageratum conyzoides, Achasma walang, dan Wedelia trilobata terhadap Morfologi dan Stomata Daun Axonopus compressus
Full text linkAxonopus compressus (Sw.) Beauv. is a type of weeds that grows invasively and wildly. The weeds growth can be controlled by applying bioherbicides. The leaf extracts of Wedelia trilobata, Achasma walang, and Ageratum conyzoides produce allelochemicals that can be used as bioherbicides. The study aims to determine the effects of applying bioherbicides from the leaf extracts of W. trilobata, A. walang, and A. conyzoides on the morphology and stomata of A. compressus weeds. This study was done by: 1) making the leaf extracts W. trilobata, A. walang, and A. conyzoides with each concentration is 10 ppm, 25 ppm, and 50 ppm; 2) giving the leaf extracts treatment on the growth of A. compressus weeds; and 3) making observations on the morphology and stomata of A. compressus weeds. The results showed that there were morphological transformations on the A. compressus weeds after applying the bioherbicides. The transformations were seen in the changing color of the leaves, the reduced leaf size, and the increased number of chlorotic leaves. Meanwhile, the effects of applying the bioherbicides on the stomata of A. compressus weeds were also found, i.e. in the changing size of stomata, and the increased of stomatal index and density
Keanekaragaman Capung (Odonata) di Aliran Sungai Desa Karangrejo, Kacamatan Garum, Blitar
Full text linkCapung merupakan salah satu bioindikator lingkungan perairan karena habitatnya yang bergantung pada sumber air. Naiad capung menghabiskan hidupnya sebelum menjadi imago dewasa di dalam air. Capung juga berperan sebagai predator alami bagi serangga kecil dan hama tanaman persawahan dan perkebunan. Ekosistem sungai memeiliki vegetasi yang bervariasi dan biota yang beragam serta kondisi lingkungan dan tipe habitat yang bermacam-macam. Tujuan dari penelitian ini adalah untuk mengetahui keanekaragaman capung di aliran sungai Desa Karangrejo, Kecamatan Garum, Kabupaten Blitar. Penelitian dilakukan selama 3 bulan dengan pengulangan sebanyak 3 kali pada tiap pengamatan. Metode pengambilan data menggunakan transek belt dengan menyusuri aliran aliran sungai dan visual day flying dengan mencatat jumlah capung yang terbang. Data yang diperoleh diidentifikasi dan dihitung indeks kenaekaragaman (H’) Shannon-Wiener. Hasil pengamatan didapatkan 29 spesies yang terdiri dari 8 famili. Spesies terbanyak ditemukan individu adalah Pantala flavescens sebanyak 459 individu dan ditemukan satu individu yakni Zyxomma obtusum dan Euphaea variegata. Nilai rata-rata indeks keanekaragaman kawasan tersebut tergolong rendah dengan H’= 1.85, dengan indeks tertinggi H’=2.26 dan terendah H’=1,23
Uji Ekstrak Bawang Putih Tunggal (Allium sativum L.) Terhadap Bakteriuria Escherichia coli Pada Calon Pekerja Migran Indonesia
Full text linkGarlic (Allium sativum L) is a tested type of phytopharmaca because it is proven to have beneficial benefits as antibacterial and protect the body from pathogens. The majority of Indonesian Migrant Workers, especially Prospective Indonesian Migrant Workers (CPMI), are indicated to be susceptible to Urinary Tract Infection (UTI), which is caused by the bacteriuria Escherichia coli. In this study, the crude extract of single garlic (A. sativum L) will be used as an antibacterial against E. coli bateriuria in the urine sample of CPMI, with variations in the concentration of single crude extract of garlic, namely; 0%, 25%, 50%, 75%, and 100%. This research was conducted in a period of 1 (one) year from January to December 2020, with urine research samples from CPMI in the Banyumas Regency area. Extraction was carried out by extracting a single garlic using 96% ethanol solvent in a ratio of 1: 1, then evaporated to produce a filtrate that would be tested with a varied concentrate composition. Isolation of bacteriuria in urine samples using EMBA selective media. From a total of 37 urine samples, 17 about 46% were positive for E. coli, and 20 samples were 54% negative for E. coli. Bacteriuria that was found challenged with crude garlic extract resulted in differences in the antibacterial test at several extract concentrations with amoxicillin positive control, with One Way Anova a P-value = 0.000 <0.05, and continued with the analysis of the Post Hoc Test and the Tuckey Test, that the garlic extract The single most effective used as an anti-bacterial agent is the concentration of 100%, resulting in an average inhibition of 12.81 mm. The ability of single garlic extract to inhibit increases with increasing extract concentrate
Keanekaragaman dan Kemelimpahan Burung Pemangsa (Raptor) Migran di Kawasan Bukit 76 Kaliurang, Yogyakarta
No full textMigratory birds are birds that fly or move from their breeding place to their non-breeding location. Migratory birds usually migrate to the southern part of the earth or tropical regions to avoid limited resources during winter in their breeding areas (Bildstein, 2006). Bird of Prey or Raptors are a group of birds that frequently migrate. Raptors carry out-migration in several areas which are commonly referred to as flyways. Indonesia is also part of the flight path for migratory birds (Sukmantoro et al., 2007). At this time there were approximately 17 types of migrant raptors in Indonesia. Research on raptor migration has been carried out for a long time in various regions. In the Yogyakarta area, there have been observations of a migrant raptor, but there are no official publications and research on migrant raptor in the Bukit 76 Kaliurang area, Yogyakarta. Therefore this research was conducted to know about migratory raptor in Yogyakarta. This research was conducted at Bukit 76 Kaliurang, Hargobinangun, Pakem, Yogyakarta. The research was conducted in December 2019-March 2020, July-August 2020, and October-November 2020. This research was conductes through observations in the morning at 07.00-11.00 WIB using birdwatching techniques and purposive methods. The results of this study recorded 1 species of migrant raptor, namely the Oriental Honey-buzzard (Pernis ptilorhynchus) and 2 species of resident raptors, namely the Crested Serpent Eagle (Spilornis cheela) and the Brahminy Kite (Haliastur indus)
Akumulasi Logam Berat Pb dan Cd dalam Sedimen dan Hubungannya dengan Biota Laut di Perairan Tulehu Ambon
Full text linkThe purpose of this study was to determine the Pb and Cd heavy metal content in sediments and their relationship with marine biota in Tulehu waters. The method used in the study was a survey by sampling at three research stations based on the representation of different characteristics at the study site. Station 1 at Tulehu Port 1 (non-operating and anthropogenic ship docker), Station 2 Tulehu Port 2 (ferry port) and Station 3 at Muara Sungai along Tulehu waters. The heavy metal content of Pb and Cd was measured using AAS (Atomic Absorption Spectroscopy). The heavy metal content of Pb and Cd has a effect on abundance and diversity of marine biota in Tulehu waters. This is evidenced by the Pb regression of marine biota abundance and diversity with values r = 0,894 and Cd = 0.895. Increased content of heavy metals in sediments was followed by a decrease in the diversity of marine life in Tulehu waters
Nematoda Parasit Pada Bunomys spp. di Pegunungan Mekongga, Sulawesi Tenggara
Full text linkStudy on the nematode parasite species of Bunomys spp. from Mekongga Mountain, Southeast Sulawesi was conducted on deposited specimens in Museum Zoologicum Bogoriense, Zoology Division, Research Center of Biology-LIPI. Bunomys is endemic genus murine rodent in Sulawesi. This study aims to determine the types of nematodes in endemic Muridae rodent, the results of which can help the government in developing disease management plans. The nematodes identified in this study were Subulura andersoni (host: B. andrewsi), Syphacia rifaii (host: B. chrysocomus), Cyclodostomum purvisi (host: B. penitus), Heterakis spumosa (host: B. chrysocomus). Except for Sy. muris, all of the recorded nematodes have worldwide distribution. Morphology and taxonomy of nematodes will be discussed in this pape
Pengaruh Komposisi 2,4-D dan BAP Terhadap Pembentukan Kalus Eksplan Pucuk Nilam (Pogostemon Cablin Benth.) secara In Vitro dengan Pemotongan Horizontal dan Vertikal
Full text linkThis study aims to determine the effect of 2,4-Diclorophenoxy Acetic Acid (2,4-D) and Benzyl Amino Purin (BAP) on the formation of callus of patchouli (Pogostemon cablin Benth.) shoot explants by horizontal and vertical cutting methods. The parameters that observed in this study were the percentage growth of callus, time appearance of callus, weight of callus and the morphology of callus. The results showed that horizontal cutting method was able to induce callus growth with the percentages growth of callus were 18,75%, with the time appearance of callus was at 16 days at P1; P10; P12; P13 dan P14. The highest weight of callus obtained was 0.19 grams at P8. The results also showed that the callus yielded had a yellow and cream color, with a compact and crumb textures. Meanwhile, the vertical cutting method was able to induce callus formation with the percentage growth of callus were 12,5%. The fastest time of callus appearance was obtained in P6 and P8, which was 12 day after planting with the highest weight of callus obtained was 0.05 grams at P12. The results also showed that vertical cutting method had brown and dark-brown of callus with a compact and crumb textures
Keanekaragaman Dan Dominansi Pohon Penyusun Hutan Lindung Di Pulau Marsegu Kabupaten Seram Bagian Barat
Full text linkMaluku is known as an archipelago and has high biodiversity. One of the many islands in Maluku that has biological natural resources is Marsegu Island in the West Seram district. Marsegu Island has a very high diversity of marine resources, various types of birds and various vegetation diversity of trees. The diversity of trees in vegetation shows a variety of compositions, both variations in shape, structure or morphology, color, number, and other characteristics of plants in an area. Tree vegetation is the main constituent of forest areas and has an important function in water management, germplasm reserves, life support, development resources and sources of foreign exchange. This study aims to determine the diversity and dominance of protected forest trees on Marsegu Island, West Seram district. The method used in this research is the belt transect method. Furthermore, the tree species were identified based on the identification book. Data were analyzed using the diversity index formula from Shannon-Wienner and Simpson dominance index. The results of research conducted in the eastern and western parts of Marsegu Island found 22 species of trees as the protected forest on Marsegu Island. The Diversity Index at both stations is in the medium category with the results obtained that the east station is 2.2652 while the west station is 2.3761 and is in a stable condition, while the Dominance Index at both stations is low with the results obtained that the eastern station is 0.1618 while the west 0.1135 and no species dominates