scholarly journals Keragaman Suara Tonggeret dan Jangkrik di Taman Nasional Gunung Gede Pangrango

2020 ◽  
Vol 6 (1) ◽  
pp. 20-25
Author(s):  
Juniarto Gautama Simanjuntak ◽  
Mega Putri Amelya ◽  
Fitri Nuraeni ◽  
Rika Raffiudin
Keyword(s):  
North America ◽  
Light Intensity ◽  
National Park ◽  
Average Frequency ◽  
Sound Recording ◽  
Air Humidity ◽  
Frequency Range ◽  
Species Determination ◽  
Minimum Frequency ◽  
High Sound

Indonesia is a biodiversity country and has much of samples of bioacoustics but there are no bioacoustics data collected and saved to be referred. Bioacoustics is a study of frequency range, sound amplitudo intensity, sound fluctuation, and sound patterns. It is very useful to study more about population presumption and species determination. This insect bioacoustics research is done at Gunung Gede Pangrango National Park and aims to analyse variety of sound frequency of cicada and cricket. Methods which are used are recording the sounds, editing and analyzing the record result with Praat and Raven Lite 2.0 softwares, and analysing the environment. Analysing the sounds which is done is to find miximum frequency, minimum frequency, and average frequency. The result of the sounds analysis is compared to database in Singing Insect of North America (SINA). Environmental analysing includes temperature, air humidity, and light intensity. There are nine cicada sound recording files and twenty four cricket sound recording files. Cicada has high sound characteristic (9,168.2 Hz) and cricket has low sound characteristic (3,311.80 Hz). Comparation to Singing Insect of North America (SINA) database shows that the cicada’s sound is resemble to Tibicen marginalis and the cricket’s sound is resemble to Grylodes sigillatus.  

scholarly journals Autecology of Begonia in Several Locations of Flores Island

2021 ◽  
Vol 15 (1) ◽  
pp. 4-12
Author(s):  
Sutomo Sutomo ◽  
Rajif Iryadi
Keyword(s):  
Multivariate Analysis ◽  
Soil Moisture ◽  
Light Intensity ◽  
Forest Floor ◽  
National Park ◽  
Natural Habitat ◽  
Air Humidity ◽  
Factor B ◽  
Slope Factor ◽  
Minimum Interval

Human activities in forest areas such as over-harvesting of Begonia species without being balanced with their cultivation activities can threaten the existence of Begonia in nature. Autecological studies of species in their natural habitat are the initial activities for the conservation of plant species. The purpose of this study was to study the distribution of Begonia on Flores and environmental/ microclimate characteristics in several locations on Flores Island. The 10x10 m plots were placed with purposive sampling with a minimum interval of 50 m. Multivariate analysis using Canonical Corespondence Analysis (CCA) was employed to determine the effect of microclimatic factors on the composition of vegetation. Begonia kelimutensis is endemic in Kelimutu National Park, Flores lives at an altitude of 1,527 asl, at soil pH 5,8 and soil moisture of 75%, with a slope of 10 ° on the forest floor and light intensity 4,640 klux. In addition, five types of Begonia that we estimate have not been identified and two of them are identified as Begonia sumbawaensis Girm. and Begonia brangbosangensis Girm. Begonia kelimutuensis is distributed at a higher altitude than Begonia brangbosangensis. B. sumbawaensis is influenced by the slope factor while B. longifolia tends to be related to the air humidity factor. B. kelimutuensis is also often found living with Macaranga sp., and Litsea sp. B. brangbosangensis, also found near Homalanthus sp. and Calliandra callothyrsus.

scholarly journals Eksplorasi Dan Inventarisasi Anggrek Di Desa Tompobulu Resort Balocci Taman Nasional Bantimurung Bulusaraung

bionature ◽  
2018 ◽  
Vol 18 (2) ◽  
Author(s):  
Hilmiah Hilmiah
Keyword(s):  
Light Intensity ◽  
National Park ◽  
Growth Characteristic ◽  
Morphological Characterization ◽  
Lower Position ◽  
Distribution Point ◽  
Park Area

Abstract. Resort Balocci of Bantimurung Bulusaraung National Park is location grown many natural orchids. This research aims to knew the natural orchids species. This research used the exploration method by tracing did the study area investigation and documentation includes of took the picture and morphological characterization as basic to identification of orchids type. Exploration of natural orchid conducted in 1 location with 94 distribution point had height from 764 m dpl until 1252 m dpl. The results of research got 44 types of orchid, the research there were 3 kinds of orchids growth characteristic, epiphytic amount 38, terrestic 5, and litofit 2, while the type its growth dominated by simpodial orchid amount 26 types. Type many found that was Eulophia spectabilis. Based on the height of place, type grow in higher position was Trichotosia sp that is 1252 m dpl while lower position was Bulbophyllum sp.2, Dendrobium stuartii, Oberonia sp.1, Pholidota sp.2, dan Luisia sp.1 that is 764 m dpl. Based on light intensity visually, the most commonly found orchid in the light intensity is half as much as 35. Keywords: Natural orchids, Epiphytic, Resort Balocci, Bantimurung Bulusaraung National Park Area

scholarly journals Environmental noise influences song frequency of Yellow Warblers (Dendroica petechia) in Grand Teton National Park

2017 ◽  
Vol 40 ◽  
pp. 79-90
Author(s):  
Charles E. Taylor ◽  
Yi-Ju Wang ◽  
Martin L. Cody
Keyword(s):  
National Parks ◽  
Background Noise ◽  
National Park ◽  
Peak Frequency ◽  
Dendroica Petechia ◽  
Grand Teton National Park ◽  
Minimum Frequency ◽  
Lack Of Information ◽  
Yellow Warblers ◽  
Song Frequency

We explored how Yellow Warblers (Dendroica petechia) alter their songs when encountering noise in Grand Teton National Park. Different strategies for avoiding signal masking are used by other species of birds, yet there is a lack of information of birds’ responses to higher noise levels–above 65 dB; such levels are often found in National Parks that have many visitors. In this study, we investigated singing behavior of Yellow Warblers when facing noise that ranged from 30 dB to 80 dB. In these preliminary results, we found that some features of Yellow Warblers did not appear to change with background noise level, including mean minimum frequency, bandwidth and song length. Other song features we studied did show small but statistically significant changes with higher background noise, including the peak frequency and the mean minimum frequency, both of which were significantly negatively correlated with the level of background noise. This result is different from the positive correlations that are typically observed. We speculate that this difference is due to the very high dB levels of background noise that we observed.   Featured photo bywagon16 on Flickr. https://flic.kr/p/G2W6Bk

Tinnitus as a Source of Internal Noise

1986 ◽  
Vol 29 (3) ◽  
pp. 400-406 ◽  
Author(s):  
M. J. Penner
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Psychometric Function ◽  
Correct Response ◽  
Internal Noise ◽  
Average Frequency ◽  
Maximum Frequency ◽  
Minimum Frequency ◽  
Frequency Matching ◽  
Pure Tones

For 7 patients with sensorineural hearing loss and tinnitus, pitch and loudness matches were made to the tinnitus. These matches were followed by measurement of three psychometric functions (probability of a correct response as a function of signal level) for pure tones, one in the presumed tinnitus region (i.e., at the average frequency matching the pitch of the tinnitus), one below the minimum frequency of the matches, and one above the maximum frequency of the matches. The data reveal (a) that pitch-loudness matches are usually quite variable and (b) that the slope of the psychometric function is flattest in the presumed tinnitus region. The first result is consistent with the idea that tinnitus is an unstable signal. The second result is consistent with the notion that the unstable tinnitus acts as a source of "internal" noise.

Effect of Climate Change on Agricultural Production

2022 ◽  
pp. 99-114
Author(s):  
Helena Esteves Correia ◽  
Daniela de Vasconcelos Teixeira Agu Costa
Keyword(s):  
Climate Change ◽  
Environmental Factors ◽  
Light Intensity ◽  
Soil Water ◽  
Agricultural Production ◽  
Co2 Concentration ◽  
Atmospheric Co2 ◽  
Air Humidity ◽  
Ozone Level ◽  
Average Temperature

Agricultural production is influenced by environmental factors such as temperature, air humidity, soil water, light intensity, and CO2 concentration. However, climate change has influenced the values of average temperature, precipitation, global atmospheric CO2 concentration, or ozone level. Thus, climate change could lead to different situations on plants and consequently influence agricultural production. With this chapter, the authors intend to research how climate change influences some plant metabolisms (such as photosynthesis, photorespiration, transpiration, among others) and therefore agricultural production.

Age of the Rockland tephra, western USA

2004 ◽  
Vol 62 (1) ◽  
pp. 94-104 ◽  
Author(s):  
M.A. Lanphere ◽  
D.E. Champion ◽  
M.A. Clynne ◽  
J.B. Lowenstern ◽  
A.M Sarna-Wojcicki ◽  
...  
Keyword(s):  
North America ◽  
National Park ◽  
Fall Deposit ◽  
Ion Microprobe ◽  
Western North America ◽  
Weighted Mean ◽  
Central California ◽  
Ash Fall ◽  
Lassen Peak ◽  
Eruption Age

The age of the Rockland tephra, which includes an ash-flow tuff south and west of Lassen Peak in northern California and a widespread ash-fall deposit that produced a distinct stratigraphic marker in western North America, is constrained to 565,000 to 610,000 yr by 40Ar/39Ar and U–Pb dating. 40Ar/39Ar ages on plagioclase from pumice in the Rockland have a weighted mean age of 609,000 ± 7000 yr. Isotopic ages of spots on individual zircon crystals, analyzed by the SHRIMP-RG ion microprobe, range from ∼500,000 to ∼800,000 yr; a subpopulation representing crystal rims yielded a weighted-mean age of 573,000 ± 19,000 yr. Overall stratigraphic constraints on the age are provided by two volcanic units, including the underlying tephra of the Lava Creek Tuff erupted within Yellowstone National Park that has an age of 639,000 ± 2000 yr. The basaltic andesite of Hootman Ranch stratigraphically overlies the Rockland in the Lassen Peak area and has 40Ar/39Ar ages of 565,000 ± 29,000 and 565,000 ± 12,000 yr for plagioclase and groundmass, respectively. Identification of Rockland tephra in ODP core 1018 offshore of central California is an important stratigraphic age that also constrains the eruption age to between 580,000 and 600,000 yr.

Hexactinellid and associated sponges from the upper Reef Trail Member of the Bell Canyon Formation, southern Guadalupe Mountains National Park, Texas

2007 ◽  
Vol 81 (6) ◽  
pp. 1241-1256 ◽  
Author(s):  
J. Keith Rigby ◽  
Gorden L. Bell ◽  
Kirsten Thompson
Keyword(s):  
North America ◽  
National Park ◽  
Southwestern Part ◽  
Type Section ◽  
Different Types ◽  
Guadalupe Mountains National Park ◽  
Hexactinellid Sponges

A small faunule of silicified hexactinellid sponges and root tufts has been recovered from the upper Guadalupian Reef Trail Member of the Bell Canyon Formation, from the Patterson Hills, in the southwestern part of the Guadalupe Mountains National Park in western Texas. Some demosponges from the type section of the Reef Trail Member, near the mouth of McKittrick Canyon on the front of the Guadalupe Mountains in the park, have also been documented. Included in the faunule from the Patterson Hills localities are the new amphidiscosid hexactinellid pelicasponge Trailospongia reischi n. gen. and sp., the questionable pelicaspongiid Hexirregularia nana n. gen. and sp., and the dictyospongiid hexactinellids Microstaura doliolum Finks, 1960, and Microstaurella minima n. gen. and sp., and Microstaurella parva n. gen. and sp. They are associated with specimens of the lyssacinosid brachiosponges Toomeyospongiella gigantia Rigby and Bell, 2005, Toomeyospongia modica n. sp., and Toomeyospongia minuta n. gen. and sp., and fragments of three different types of root tufts, termed Tufts 1, 3, and 4. Two specimens of the new cylindrical demosponge Mckittrickella pratti n. gen. and sp. are associated with Tuft 2 in the collection from the type section of the Reef Trail Member, and a third specimen was collected from the member in the Patterson Hills. These sponges from Localities 1-7 are the youngest Permian sponges known from the region, and possibly from North America.

The Oxford Handbook of Shakespeare and Performance

2017 ◽  
Keyword(s):  
North America ◽  
Latin American ◽  
Cultural Hegemony ◽  
Sound Recording ◽  
The Third ◽  
Performance Criticism ◽  
The World ◽  
And Performance ◽  
Latin American Countries ◽  
Final Group

Shakespearean performance criticism has undergone a sea change in recent years, and strong tides of discovery are continuing to shift the contours of the discipline. The essays in this volume, written by scholars from around the world, reveal how these critical cross-currents are influencing the ways we now view Shakespeare in performance. Essays are divided into four groups. The first group interrogates how Shakespeare continues to achieve contemporaneity for Western audiences by exploring modes of performance, acting styles, and aesthetic choices that are regarded as experimental. The second group tackles the burgeoning field of reception: how and why audiences respond to performances, or actors to the conditions in which they perform; how immersive productions turn spectators into actors; how memory and cognition shape and reshape the performances we think we saw. The third group addresses the ways in which technology has altered our views of Shakespeare, both through the mediums of film and sound recording, and through digitalizing processes which have caused a profound reconsideration of what performance is and how it is accessed. The final group grapples with intercultural Shakespeare, considering not only matters of cultural hegemony and appropriation in a ‘global’ importation of non-Western productions to Europe and North America, but also how Shakespeare has been made ‘local’ in performances staged or filmed in African, Asian, and Latin American countries. Together, these groundbreaking essays attest to the richness and diversity of Shakespearean performance criticism as practised today, and point the way to critical continents not yet explored.

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