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Journal articles on the topic 'Frogs Research'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 February 2022

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1

Sugiura, Shinji. "Anti-predator defences of a bombardier beetle: is bombing essential for successful escape from frogs?" PeerJ 6 (November 30, 2018): e5942. http://dx.doi.org/10.7717/peerj.5942.

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Some animals, such as the bombardier beetles (Coleoptera: Carabidae: Brachinini), have evolved chemical defences against predators. When attacked, bombardier beetles can discharge noxious chemicals at temperatures of approximately 100 °C from the tip of their abdomens, “bombing” their attackers. Although many studies to date have investigated how bombardier beetles discharge defensive chemicals against predators, relatively little research has examined how predators modify their attacks on bombardier beetles to avoid being bombed. In this study, I observed the black-spotted pond frog Pelophyla

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2

Grainger, Roger. "Using ‘Frogs’ in Research." Dramatherapy 19, no. 3 (December 1997): 3–5. http://dx.doi.org/10.1080/02630672.1997-1998.9689456.

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Hazell, Donna. "Frog ecology in modified Australian landscapes: a review." Wildlife Research 30, no. 3 (2003): 193. http://dx.doi.org/10.1071/wr02075.

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Frog decline in Australia has often occurred where habitat is relatively intact. Habitat alteration and loss do, however, threaten many species. Widespread degradation of aquatic and terrestrial systems has occurred since European settlement, with only 6.4% of Australia's landmass reserved for conservation. But what do we know about how frogs use modified Australian landscapes? Do wildlife managers have the information required to ensure that frog habitat is considered in the management and revegetation of these areas? This review examines published Australian research on frogs to determine kn

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4

Woinarski, J. C. Z., S. M. Legge, L. A. Woolley, R. Palmer, C. R. Dickman, J. Augusteyn, T. S. Doherty, et al. "Predation by introduced cats Felis catus on Australian frogs: compilation of species records and estimation of numbers killed." Wildlife Research 47, no. 8 (2020): 580. http://dx.doi.org/10.1071/wr19182.

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Abstract ContextWe recently estimated the numbers of reptiles, birds and mammals killed by cats (Felis catus) in Australia, with these assessments providing further evidence that cats have significant impacts on Australian wildlife. No previous studies have estimated the numbers of frogs killed by cats in Australia and there is limited comparable information from elsewhere in the world. AimsWe sought to (1) estimate the numbers of frogs killed by cats in Australia and (2) compile a list of Australian frog species known to be killed by cats. MethodsFor feral cats, we estimated the number of fro

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LaDouceur, Elise E. B., Amanda M. Hauck, Michael M. Garner, Andrew N. Cartoceti, and Brian G. Murphy. "Odontomas in Frogs." Veterinary Pathology 57, no. 1 (September 24, 2019): 147–50. http://dx.doi.org/10.1177/0300985819877633.

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Odontomas are variably differentiated, hamartoma-like proliferations of odontogenic epithelium, pulp ectomesenchyme (odontoblasts), and dental matrix. Frogs are polyphyodont and homodont. Their teeth also differ from mammals in that they are restricted to the upper jaw in adults and lack a periodontal ligament and cementum, attaching directly to the underlying bone. Odontomas were identified in an African clawed frog ( Xenopus laevis), a false tomato frog ( Dyscophus guineti), and a tomato frog of unknown species ( Dyscophus sp.). All of the examined odontomas were composed of numerous tooth-l

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Koshevoy, N. D., V. V. Muratov, A. L. Kirichenko, and S. A. Borisenko. "APPLICATION OF THE “JUMPING FROGS” ALGORITHM FOR RESEARCH AND OPTIMIZATION OF THE TECHNOLOGICAL PROCESS." Radio Electronics, Computer Science, Control 1, no. 1 (March 26, 2021): 57–65. http://dx.doi.org/10.15588/1607-3274-2021-1-6.

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Context. An application of the method of a “jumping frogs” search algorithm to construct optimal experiment plans for cost (time) in the study of technological processes and systems that allow the implementation of an active experiment on them is proposed. The object of study are optimization methods for cost (time) costs of experimental designs, based on the application of a “jumping frogs” search algorithm. Objective. To obtain optimization results by optimizing the search of a “jumping frogs” search algorithm for the cost (time) costs of plans for a full factorial experiment.&#x

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Gardiner, David, A. Ndayibagira, Felix Grün, and Bruce Blumberg. "Deformed frogs and environmental retinoids." Pure and Applied Chemistry 75, no. 11-12 (January 1, 2003): 2263–73. http://dx.doi.org/10.1351/pac200375112263.

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Since the early 1990s, a substantial number of deformed frogs have been observed in North America, particularly in the upper Midwest and Canada. Attempts to understand the etiology of the deformed frog problem have met with limited success to date with nearly as many proposed explanations as research groups working on the problem. Models for the mechanism underlying the development of deformed frogs include parasite/predation, ultraviolet radiation, and chemical exposure. Each model has its strengths and weaknesses. Despite contentious debate among researchers, there is an overall consensus th

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8

Tong, Qing, Xiao-peng Du, Zong-fu Hu, Li-yong Cui, and Hong-bin Wang. "Modelling the growth of the brown frog (Rana dybowskii)." PeerJ 6 (May 16, 2018): e4587. http://dx.doi.org/10.7717/peerj.4587.

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Well-controlled development leads to uniform body size and a better growth rate; therefore, the ability to determine the growth rate of frogs and their period of sexual maturity is essential for producing healthy, high-quality descendant frogs. To establish a working model that can best predict the growth performance of frogs, the present study examined the growth of one-year-old and two-year-old brown frogs (Rana dybowskii) from metamorphosis to hibernation (18 weeks) and out-hibernation to hibernation (20 weeks) under the same environmental conditions. Brown frog growth was studied and mathe

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Dökenel, Gülşah, and Selmin Özer. "Bacterial agents isolated from cultured marsh frog (Pelophylax ridibundus, Pallas 1771)." Ege Journal of Fisheries and Aquatic Sciences 36, no. 2 (June 15, 2019): 115–24. http://dx.doi.org/10.12714/egejfas.2019.36.2.03.

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Marsh frogs (Pelophylax ridibundus) are preferred in European cuisine. In recent years, interest in farming of marsh frogs has increased, but little is known about their bacterial diseases. This research was carried out in a marsh frog farming operation in Mersin, Turkey, in order to determine the bacterial diversity. For this purpose, a total of 339 frog, 30 water, and 8 feed samples were collected. Isolation and identification of bacteria were carried out by conventional techniques and the VITEK-2 compact system. Antimicrobial susceptibility testing was performed by Kirby-Bauer disc diffusio

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Liu, Haorui, Fengyan Yi, and Heli Yang. "Adaptive Grouping Cloud Model Shuffled Frog Leaping Algorithm for Solving Continuous Optimization Problems." Computational Intelligence and Neuroscience 2016 (2016): 1–8. http://dx.doi.org/10.1155/2016/5675349.

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The shuffled frog leaping algorithm (SFLA) easily falls into local optimum when it solves multioptimum function optimization problem, which impacts the accuracy and convergence speed. Therefore this paper presents grouped SFLA for solving continuous optimization problems combined with the excellent characteristics of cloud model transformation between qualitative and quantitative research. The algorithm divides the definition domain into several groups and gives each group a set of frogs. Frogs of each region search in their memeplex, and in the search process the algorithm uses the “elite str

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GU^|^Eacute;NETTE, Sarah Annie, Marie-Chantal GIROUX, and Pascal VACHON. "Pain Perception and Anaesthesia in Research Frogs." Experimental Animals 62, no. 2 (2013): 87–92. http://dx.doi.org/10.1538/expanim.62.87.

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Mello, Sílvia Conceição Reis Pereira, Roberto Rodrigues de Oliveira, Marcelo Maia Pereira, Eliane Rodrigues, Willian Nascimento Silva, and José Teixeira de Seixas Filho. "Development of a water recirculating system for bullfrog production: technological innovation for small farmers." Ciência e Agrotecnologia 40, no. 1 (February 2016): 67–75. http://dx.doi.org/10.1590/s1413-70542016000100006.

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ABSTRACT Despite the technological progress in frog farming, issues related to the environment, biosafety, and the use of technologies that minimise environmental impacts are frequently neglected by farmers. With the goal of developing a low-cost technology for reuse and preservation of water quality, an anaerobic filtering system combined with an aerobic filtering system was implemented in the grow-out sector in the Frog Culture Research Unit at Fundação Instituto de Pesca do Estado do Rio de Janeiro (FIPERJ). The filtering system received the effluent from six pens of frogs that were populat

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Backlin, Adam R., Cynthia J. Hitchcock, Elizabeth A. Gallegos, Julie L. Yee, and Robert N. Fisher. "The precarious persistence of the Endangered Sierra Madre yellow-legged frog Rana muscosa in southern California, USA." Oryx 49, no. 1 (November 21, 2013): 157–64. http://dx.doi.org/10.1017/s003060531300029x.

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AbstractWe conducted surveys for the Endangered Sierra Madre yellow-legged frog Rana muscosa throughout southern California to evaluate the current distribution and status of the species. Surveys were conducted during 2000–2009 at 150 unique streams and lakes within the San Gabriel, San Bernardino, San Jacinto, and Palomar mountains of southern California. Only nine small, geographically isolated populations were detected across the four mountain ranges, and all tested positive for the amphibian chytrid fungus Batrachochytrium dendrobatidis. Our data show that when R. muscosa is known to be pr

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Dare, O. K., and M. R. Forbes. "Patterns of trematode and nematode lungworm infections in northern leopard frogs and wood frogs from Ontario, Canada." Journal of Helminthology 83, no. 4 (March 26, 2009): 339–43. http://dx.doi.org/10.1017/s0022149x09243495.

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AbstractIn this study we examined trematode and nematode lung helminths commonly found in two species of host ranid frogs for competitive interactions. We examined 147 adult (breeding and non-breeding) and juvenile northern leopard frogs, and 84 breeding male wood frogs in Bishops Mills, Ontario for Haematoloechus spp. (Trematoda) and Rhabdias sp. (Nematoda) infections. A strong negative association between phyla of helminth was observed in breeding and juvenile northern leopard frogs, and also in breeding wood frogs, but not in non-breeding adult northern leopard frogs. Few hosts carried both

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Mann, Reinier M., Ross V. Hyne, Paulina Selvakumaraswamy, and Sergio S. Barbosa. "Longevity and larval development among southern bell frogs (Litoria raniformis) in the Coleambally Irrigation Area - implications for conservation of an endangered frog." Wildlife Research 37, no. 6 (2010): 447. http://dx.doi.org/10.1071/wr10061.

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Context. With the flow of many of the world’s rivers regulated such that water can be diverted for agriculture and human consumption, basic ecological information on the current status of key biota in significant floodplain wetlands and their response following inundation is needed. The maintenance of natural habitat to ensure amphibian survival is gaining increasing recognition, given the ongoing decline of anuran populations. Information on longevity, time required to emerge from the water and to reach sexual maturity, all provide important information about the required timing, frequency an

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Hirsch, Peter Buell. "The emasculation of frogs." Journal of Business Strategy 36, no. 3 (May 18, 2015): 57–60. http://dx.doi.org/10.1108/jbs-03-2015-0024.

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Purpose – This article aims to suggest some ways in which the effectiveness of critical scientific communication might be improved. The persistence of anti-vaccine rhetoric, disputes about climate change and other scientific controversies have shone a light on the difficulty of communicating scientific information effectively to the public. Design/methodology/approach – The article looks at some recent research into neuroscience and human decision-making to suggest some best practices in communicating about science to the public. Findings – This literature review suggests that if we can embed

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Michaels, Christopher. "The effects of two calcium supplementation regimens on growth and health traits of juvenile mountain chicken frogs (Leptodactylus fallax)." Herpetological Journal, Volume 31 Number 1 (January 1, 2021): 18–26. http://dx.doi.org/10.33256/31.1.1826.

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The mountain chicken frog (Leptodactylus fallax) is among the 42 % of amphibians threatened with extinction and is dependent upon ex situ populations to recover in the wild. Amphibian captive husbandry is not fully understood and empirical data are required to optimise protocols for each species in captivity. Calcium metabolism and homeostasis are areas of importance in captive husbandry research and have been identified as a challenge in maintaining ex situ populations of L. fallax. We trialled two frequencies (twice and seven times weekly) of calcium supplementation via dusting of feeder ins

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18

Xu, Bo, Zhou Yu Fu, and Zhao Yang Sun. "Research on the Relationship between Bionic Surface Friction Coefficient and Interface Medium." Advanced Materials Research 712-715 (June 2013): 387–90. http://dx.doi.org/10.4028/www.scientific.net/amr.712-715.387.

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The convex structure on tree frogs foot pats provide huge adsorption force, we can extract this facture of tree frogs foot pats, and apply on the surface of belt conveyor drum encapsulation in order to increase friction between drum and conveyor belt. But the environment underground is complex. There is always has coal particle and water on the frictional contact surface. The friction performance test was done by MMW-1A universal friction and wear tester in order to verify the friction coefficient of bionic surface under different conditions. At last, we figure out that water or coal particle

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Huang, Xueliang, Hao Qiang, Qidong Zhang, and Haijuan Li. "Research on ISFLA-Based Optimal Control Strategy for the Coordinated Charging of EV Battery Swap Station." Mathematical Problems in Engineering 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/613404.

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As an important component of the smart grid, electric vehicles (EVs) could be a good measure against energy shortages and environmental pollution. A main way of energy supply to EVs is to swap battery from the swap station. Based on the characteristics of EV battery swap station, the coordinated charging optimal control strategy is investigated to smooth the load fluctuation. Shuffled frog leaping algorithm (SFLA) is an optimization method inspired by the memetic evolution of a group of frogs when seeking food. An improved shuffled frog leaping algorithm (ISFLA) with the reflecting method to d

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20

Goldingay, R., G. Daly, and F. Lemckert. "Assessing the Impacts of Logging on Reptiles and Frogs in the Montane Forests of Southern New South Wales." Wildlife Research 23, no. 4 (1996): 495. http://dx.doi.org/10.1071/wr9960495.

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This study describes an assessment of the medium-term effects of selection logging on the reptiles and frogs in the montane forests near Queanbeyan, New South Wales. A total of 15 reptile and two frog species was detected across 20 fixed-area plots that were selected according to broad forest type and logging history. Reptile species richness was not significantly different among the different habitat treatments. Total reptile abundance was significantly higher on logged plots, but was not influenced by forest moisture type. Individual analyses for five lizard species (accounting for 84% of al

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Skerratt, Lee F., Lee Berger, Nick Clemann, Dave A. Hunter, Gerry Marantelli, David A. Newell, Annie Philips, et al. "Priorities for management of chytridiomycosis in Australia: saving frogs from extinction." Wildlife Research 43, no. 2 (2016): 105. http://dx.doi.org/10.1071/wr15071.

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To protect Australian amphibian biodiversity, we have identified and prioritised frog species at an imminent risk of extinction from chytridiomycosis, and devised national management and research priorities for disease mitigation. Six Australian frogs have not been observed in the wild since the initial emergence of chytridiomycosis and may be extinct. Seven extant frog species were assessed as needing urgent conservation interventions because of (1) their small populations and/or ongoing declines throughout their ranges (southern corroboree frog (Pseudophryne corroboree, New South Wales), nor

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Seburn, David C., Kari Gunson, and Frederick W. Schueler. "Apparent widespread decline of the Boreal Chorus Frog (Pseudacris maculata) in eastern Ottawa." Canadian Field-Naturalist 128, no. 2 (July 6, 2014): 151. http://dx.doi.org/10.22621/cfn.v128i2.1579.

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The Boreal Chorus Frog (Pseudacris maculata) was once common in the eastern Ottawa area. To assess its current status, we conducted auditory surveys at 184 wetlands in 2011 and 2012. Boreal Chorus Frogs were heard at only five (2.7%) of the surveyed sites. These five sites were spatially aggregated, with only 0.5–7.5 km between any two sites. Sites occupied by Boreal Chorus Frogs in eastern Ottawa were surrounded by significantly greater agricultural cover (at 1.0-, 1.5-, and 2.0-km radii), less forest cover (1.0- and 2.0-km radii), and less wetland cover (1.5- and 2.0-km radii) than occupied

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Dalbeck, Lutz, Joyce Janssen, and Sophie Luise Völsgen. "Beavers (Castor fiber) increase habitat availability, heterogeneity and connectivity for common frogs (Rana temporaria)." Amphibia-Reptilia 35, no. 3 (2014): 321–29. http://dx.doi.org/10.1163/15685381-00002956.

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Beavers (Castor fiber), as typical ecosystem engineers, alter living conditions especially for amphibians through the building of dams and felling of trees, thereby changing the hydroperiod and substantially affecting forest succession stages. In this study we quantify the effects of beavers on the availability of amphibian breeding waters in the Hürtgenwald, a woodland area in the Central European Rhenish Massif, its colonisation by common frogs (Rana temporaria) and the effects of age and succession stage of beaver ponds on ovipositional site selection. In 2013, beaver ponds comprised about

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Wansbrough, Henry. "Two choruses of frogs?" Journal of Hellenic Studies 113 (November 1993): 162. http://dx.doi.org/10.2307/632407.

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In September 1991 I came across two parties of frogs in the bulrushes on either side of a still little pool at the Ain Qilt, some ten miles east of Jerusalem. The two parties were calling to each other in turn, as though singing antiphonally. The remarkable fact which struck me was that each group had a different chant, the one distinctly chanting only βρεκεκεκέξ, while the other replied equally distinctly with a consistent κοάξ, κοάξ. I observed this phenomenon for some ten minutes, but was not able to ascertain other differences between the two groups, such as sex, age, or temperament; but I

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Yudha, Donan Satria, Rury Eprilurahman, Hastin Ambar Asti, Herofi Azhar, Nurrochmah Wisudhaningrum, Puji Lestari, Siti Markhamah, and Imam Sujadi. "Keanekaragaman katak dan kodok (Amphibia: Anura) di Suaka Margasatwa Paliyan, Gunungkidul, Yogyakarta." Jurnal Biologi Udayana 23, no. 2 (December 30, 2019): 59. http://dx.doi.org/10.24843/jbiounud.2019.v23.i02.p03.

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Frogs and toads commonly found by human. Frogs and toads could become a bio-indicator of anenvironment. Paliyan Wildlife Sanctuary is a forest area which posses several animal to protect and it’slocated in Gunungkidul Regency, Province of DIY. The diversity of frogs and toads in this wildlifesanctuary is not yet recorded and published. The aim of this research is to understand the diversity of frogsand toads in the area of Paliyan Wildlife Sanctuary. The results there were 9 species of frogs and toads, i.e.,Duttaphrynus melanostictus, Ingerophrynus biporcatus, Fejervarya limnocharis, Kaloula b

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Bruni, Giacomo. "Will there be a second extinction? Molecular identification of multiple alien water frogs (Pelophylax ridibundus sensu lato) in Tuscany, Central Italy, reveals genetic pollution within a unique hybridogenetic system." Herpetological Journal, Volume 30, Number 3 (July 1, 2020): 147–58. http://dx.doi.org/10.33256/hj30.3.147158.

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The introduction of alien water frogs is perhaps one of the most underestimated herpetological conservation issues in Europe. The identification of distinct species is highly challenging at the phenotypic level, and artificial syntopy between various taxa and lineages may lead to diverse outcomes, including hybridisation and local extinction. In central Italy the native synklepton of Pelophylax bergeri (the parental taxon) and P. kl. (klepton) hispanicus (the hybridogenetic hybrid, which clonally transmits the genome of an extinct ridibundus-like taxon) is present. Until recently, data regardi

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Quick, Gemma, Ross L. Goldingay, Jonathan Parkyn, and David A. Newell. "Population stability in the endangered Fleay’s barred frog (Mixophyes fleayi) and a program for long-term monitoring." Australian Journal of Zoology 63, no. 3 (2015): 214. http://dx.doi.org/10.1071/zo14106.

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In the wake of the global decline in amphibians there is a need for long-term population monitoring. Previous research suggested that the endangered Fleay’s barred frog (Mixophyes fleayi) had recovered after a severe decline. We aimed to determine whether this recovery has been sustained and to test an example of a monitoring program that could be employed at intervals of five or more years to assess long-term population stability. We conducted capture–mark–recapture five years after the last detailed census at Brindle Creek in Border Ranges National Park, New South Wales. Frogs were captured

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Plötner, Jörg, and Dirk Scmeller. "Some remarks on current research on western Palearctic water frogs." Zoosystematics and Evolution 77, no. 1 (April 22, 2008): 3–4. http://dx.doi.org/10.1002/mmnz.20010770102.

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Plötner, Jörg, and Dirk Scmeller. "Some remarks on current research on western Palearctic water frogs." Mitteilungen aus dem Museum für Naturkunde in Berlin. Zoologische Reihe 77, no. 1 (2001): 3–4. http://dx.doi.org/10.1002/mmnz.4850770102.

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Brooks, Olivia L., and Ralph A. Saporito. "For poison frogs, bitter is better." Biochemist 41, no. 6 (December 2, 2019): 16–20. http://dx.doi.org/10.1042/bio04106016.

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You are what you eat. Although this common phrase is one that all animals can relate to, for poison frogs, what they choose to eat could be a matter of life and death. Poison frogs are famously known for the brilliant colours and striking patterns that bring attention to themselves (Figure 1)—but attention seekers they are not. Instead, they are engaged in a complex advertisement scheme, aimed to warn predators that they might want to eat something else. You see, poison frogs are chock-full of bitter-tasting alkaloids, which most predators find distasteful and many pathogens find hard to live

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MONTAGUE, PETER. "Research Ethics and the Precautionary Principle: Marching toward Environmental Decay." Cambridge Quarterly of Healthcare Ethics 12, no. 4 (August 7, 2003): 466–67. http://dx.doi.org/10.1017/s0963180103124176.

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I recently read through the most recent 24 issues of Environmental Health Perspectives—the National Institutes of Health journal of, among other issues, scientific research into how environmental contaminants impact animal and human health. It is a catalog of horrors from a public health perspective. Fish and frogs with their sex scrambled; deformed frogs with altered hormone levels in their blood; a nearly threefold increase in birth defects among Minnesota farm children exposed to pesticides; 2,4-D exposure reducing hormone levels in men; insignificant levels of four environmental chemicals

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Rojas, Bibiana, and Andrius Pašukonis. "From habitat use to social behavior: natural history of a voiceless poison frog, Dendrobates tinctorius." PeerJ 7 (September 17, 2019): e7648. http://dx.doi.org/10.7717/peerj.7648.

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Descriptive studies of natural history have always been a source of knowledge on which experimental work and scientific progress rely. Poison frogs are a well-studied group of small Neotropical frogs with diverse parental behaviors, distinct calls, and bright colors that warn predators about their toxicity; and a showcase of advances in fundamental biology through natural history observations. The dyeing poison frog, Dendrobates tinctorius, is emblematic of the Guianas region, widespread in the pet trade, and increasingly popular in research. This species shows several unusual behaviors, such

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Bina Perl, R. G., Sarig Gafny, Yoram Malka, Sharon Renan, Douglas C. Woodhams, Louise Rollins-Smith, James D. Pask, Molly C. Bletz, Eli Geffen, and Miguel Vences. "Natural history and conservation of the rediscovered Hula painted frog, Latonia nigriventer." Contributions to Zoology 86, no. 1 (February 13, 2017): 11–37. http://dx.doi.org/10.1163/18759866-08601002.

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Dramatic global amphibian declines have recently led to an increased concern for many species of this animal class. The enigmatic Hula painted frog (Latonia nigriventer), the first amphibian to be declared extinct but unexpectedly rediscovered in 2011, has remained one of the rarest and most poorly understood amphibians worldwide. Gathering basic biological information on this species, along with an understanding of its disease-related threats remains fundamental for developing risk assessments and conservation strategies. Our surveys in recent years confirmed that L. nigriventer is a localise

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Lewis, Carrie H. R., Corinne L. Richards-Zawacki, Roberto Ibáñez, Jennifer Luedtke, Jamie Voyles, Paul Houser, and Brian Gratwicke. "Conserving Panamanian harlequin frogs by integrating captive-breeding and research programs." Biological Conservation 236 (August 2019): 180–87. http://dx.doi.org/10.1016/j.biocon.2019.05.029.

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Huang, Min Yi, Ren Yan Duan, and Xiao Li Ji. "Amphibian as a Model to Study Environmental Problem." Applied Mechanics and Materials 71-78 (July 2011): 3179–82. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.3179.

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In order to obtain a better insight of the possible threat of environmental factor to wildlife, especially to amphibians, we studied influences of dicofol on heart rate inR. nigromaculataby applying biological signal recording and monitoring system.R. nigromaculatawas injected in ventral lymph follicle in different doses of dicofol solution, and then observed the changes of heart rate after 7 days. The results showed that with the concentration of dicofol solution increasing, the heart rate, systolic tension and diastolic tension changed. The aim of this research is to discuss the cause of dic

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Animalesto, Gloria. "The infection of trematodes on rice frogs (Fejervarya cancrivora) in Karawang Regency, West Java." BIO Web of Conferences 19 (2020): 00004. http://dx.doi.org/10.1051/bioconf/20201900004.

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Fejervarya cancrivora is often used as raw material for food and export commodities. In 2014, it was recorded that Karawang Regency was the largest producer of frog’s legs meat in West Java. Research on trematode worms of F. cancrivora from Karawang Regency was conducted to find out the diversity of trematodes worms and its infection patterns. The observation was carried out on 120 frogs. The lungs, stomach, intestine, and caecum were examined for trematodes. The results showed that the F. cancrivora infected by four species of trematodes i.e., Glypthelmins sp., Pleurogenoides sp., Haematoloec

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Garg, Sonali, Robin Suyesh, Sandeep Das, Mark A. Bee, and S. D. Biju. "An integrative approach to infer systematic relationships and define species groups in the shrub frog genus Raorchestes, with description of five new species from the Western Ghats, India." PeerJ 9 (March 3, 2021): e10791. http://dx.doi.org/10.7717/peerj.10791.

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The genus Raorchestes is a large radiation of Old World tree frogs for which the Western Ghats in Peninsular India is the major center for origin and diversification. Extensive studies on this group during the past two decades have resolved long-standing taxonomic confusions and uncovered several new species, resulting in a four-fold increase in the number of known Raorchestes frogs from this region. Our ongoing research has revealed another five new species in the genus, formally described as Raorchestes drutaahu sp. nov., Raorchestes kakkayamensis sp. nov., Raorchestes keirasabinae sp. nov.,

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Davenport, J. M., P. A. Seiwert, L. A. Fishback, and W. B. Cash. "The effects of two fish predators on Wood Frog (Lithobates sylvaticus) tadpoles in a subarctic wetland: Hudson Bay Lowlands, Canada." Canadian Journal of Zoology 91, no. 12 (December 2013): 866–71. http://dx.doi.org/10.1139/cjz-2013-0091.

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Fish can have strong predatory impacts on aquatic food webs. Indeed, fish are known to have strong effects on amphibians, with some species being excluded from communities where fish are present. Most research with amphibians and fish has focused on lower latitudes and very little is known of amphibian–fish interactions at higher latitudes. Therefore, we conducted an enclosure experiment in a subarctic natural wetland to examine the predatory effects of two species of fish, brook sticklebacks (Culaea inconstans (Cuvier, 1829)) and ninespine sticklebacks (Pungitius pungitius (L., 1758)), on the

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Chao, Kuo-Wei, Nian-Ze Hu, Yi-Chu Chao, Chin-Kai Su, and Wei-Hang Chiu. "Implementation of Artificial Intelligence for Classification of Frogs in Bioacoustics." Symmetry 11, no. 12 (November 26, 2019): 1454. http://dx.doi.org/10.3390/sym11121454.

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This research presents the implementation of artificial intelligence (AI) for classification of frogs in symmetry of the bioacoustics spectral by using the feedforward neural network approach (FNNA) and support vector machine (SVM). Recently, the symmetry concept has been applied in physics, and in mathematics to help make mathematical models tractable to achieve the best learning performance. Owing to the symmetry of the bioacoustics spectral, feature extraction can be achieved by integrating the techniques of Mel-scale frequency cepstral coefficient (MFCC) and mentioned machine learning algo

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YEN, GARY G., and QIANG FU. "AUTOMATIC FROG CALLS MONITORING SYSTEM: A MACHINE LEARNING APPROACH." International Journal of Computational Intelligence and Applications 01, no. 02 (June 2001): 165–86. http://dx.doi.org/10.1142/s1469026801000184.

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Automatic recognition of frog vocalization is considered a valuable tool for a variety of biological research and environmental monitoring applications. In this research an automatic monitoring system, which can recognize the vocalizations of four species of frogs and can identify different individuals within the species of interest, is proposed. For the desired monitoring system, species identification is performed first with the proposed filtering and grouping algorithm. Individual identification, which can estimate frog population within the specific species, is performed in the second stag

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Womble, Mandy A., Gregory A. Lewbart, and Heather R. Shive. "Pathologic Lesions of the Budgett Frog (Lepidobatrachus laevis), an Emerging Laboratory Animal Model." Comparative Medicine 70, no. 3 (June 1, 2020): 239–47. http://dx.doi.org/10.30802/aalas-cm-19-000071.

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Lepidobatrachus laevis, commonly called the Budgett frog, is a member of the horned frog family (Ceratophryidae), which has become increasingly popular among amphibian hobbyists. L. laevis is also used in biologic research on embryonic development, providing a novel model species for the study of organogenesis, regeneration, evolution, and biologic scaling. However, little scientific literature details disease processes or histologic lesions in this species. Our objective was to describe spontaneous pathologic lesions in L. laevis to identify disease phenotypes. We performed a retrospective an

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Palamarenko, O. V. "ЗМЕНШЕННЯ ЧИСЕЛЬНОСТІ ТРАВ’ЯНОЇ ЖАБИ (RANA TEMPORARIA) ЯК ПОКАЗНИК НЕСТАБІЛЬНОСТІ ЛОКАЛЬНОЇ ЕКОСИСТЕМИ". Scientific Issue Ternopil Volodymyr Hnatiuk National Pedagogical University. Series: Biology 79, № 1-2 (6 червня 2020): 36–41. http://dx.doi.org/10.25128/2078-2357.20.1-2.4.

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In the 21st century, the existence of many species of amphibians on our planet has become quite problematic due to a number of adverse environmental factors of both natural and anthropogenic origin. Amphibian fauna in Ukraine is not an exception. By conducting a series of field studies and observations, the author has established changes that occurred in the population of the grass frog (Rana temporaria) in the territory of the Lypnyky Forestry of the State Enterprise "Lvivlis". From 2005 to 2019 a number of field studies were conducted and the fact of a sharp decrease in the number of this sp

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de Boer, Teun P., and Marcel A. G. van der Heyden. "Xenopus connexins: how frogs bridge the gap." Differentiation 73, no. 7 (September 2005): 330–40. http://dx.doi.org/10.1111/j.1432-0436.2005.00026.x.

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Mudke, Madhushri. "Nesting frogs - the breeding biology of Indirana cf. tysoni in the Western Ghats, India." Spring 2021, no. 155, Spring 2021 (April 1, 2021): 2–7. http://dx.doi.org/10.33256/hb155.27.

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Frogs of the genus Indirana are endemic to India. Previous research on these frogs has focussed on taxonomy and systematics but their behaviour remains largely understudied. Here we report the breeding behaviour of Indirana cf. tysoni, including nest building, male to male combat, inguinal amplexus, egg clutch guarding, tadpoles and polymorphism. We also analyse advertisement calls and present a comparative analysis with previously published data. Lastly, we discuss the need to study these breeding behaviours in-depth in order to help frame appropriate conservation plans.

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Purnamasari, Sry, and Muhammad Wahyu Setiyadi. "PENGARUH ZAT KIMIA PADA BERBAGAI SUHU TERHADAP DENYUT JANTUNG KATAK (Rana sp.) DALAM UPAYA PENGEMBANGAN BUKU PETUNJUK PRAKTIKUM FISIOLOGI HEWAN." Bioscientist : Jurnal Ilmiah Biologi 7, no. 2 (December 30, 2019): 123. http://dx.doi.org/10.33394/bjib.v7i2.2388.

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The purpose of this study is to determine the effect of chemicals on various temperatures in the heart of frogs (Rana sp.) And to compile valid animal physiology practical instructions. This research is a type of experimental research (true experimental) and this research approach is a qualitative approach. Samples were given 3 different treatments, namely controls with room temperature of 250C-300C, temperature of 00C-100C, and 300C-400C. The results of the study using ANOVA (Analysis of Variance) showed the effect of NaCl solution on the frog heart rate (Rana sp.) Namely Fcount of 5.18 while

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Jaafar, Haryati, and Dzati Athiar Ramli. "Effect of Natural Background Noise and Man-Made Noise on Automated Frog Calls Identification System." Journal of Tropical Resources and Sustainable Science (JTRSS) 3, no. 1 (July 18, 2021): 208–13. http://dx.doi.org/10.47253/jtrss.v3i1.559.

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Frog identification based on their calls becomes important for biological research and environmental monitoring. However, identifying particular frog calls becomes challenging particularly when the frog calls are interrupted with noises either in natural background noise or man-made noise. Hence, an automatic identification frog call system that robust in noisy environment has been proposed in this paper. Experimental studies of 675 audio obtained from 15 species of frogs in the Malaysian forest and recorded in an outdoor environment are used in this study. These audio data are then corrupted

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Carruthers, Vincent. "Ensuring a Future for South Africa's Frogs: a Strategy for Conservation Research." Transactions of the Royal Society of South Africa 66, no. 2 (June 2011): 154. http://dx.doi.org/10.1080/0035919x.2011.586444.

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Carr, Anna, and Donna Hazell. "Talking Frogs: The Role of Communication in Ecological Research on Private Land." Biodiversity and Conservation 15, no. 10 (June 30, 2006): 3177–91. http://dx.doi.org/10.1007/s10531-005-6969-1.

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Speers, Claire. "How can teachers effectively use student dialogue to drive engagement with ancient drama? An analysis of a Year 12 Classical Civilisation class studying Aristophanes’ Frogs." Journal of Classics Teaching 21, no. 41 (2020): 19–32. http://dx.doi.org/10.1017/s2058631020000112.

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Within this article I aim to explore how greater student dialogue in the classroom can drive engagement with ancient drama. As part of the Classical Civilisation A Level specification, students need to demonstrate knowledge and awareness in the examination of how Aristophanes’ Frogs might have been performed on stage and its possible reception by a classical audience. This research investigates how teachers can effectively encourage student discourse in the classroom for students to engage with and analyse Frogs as a piece of comic drama, rather than simply as an A Level set text.

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Duffus, Amanda L. J., Trenton W. J. Garner, Richard A. Nichols, Joshua P. Standridge, and Julia E. Earl. "Modelling Ranavirus Transmission in Populations of Common Frogs (Rana temporaria) in the United Kingdom." Viruses 11, no. 6 (June 15, 2019): 556. http://dx.doi.org/10.3390/v11060556.

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Ranaviruses began emerging in common frogs (Rana temporaria) in the United Kingdom in the late 1980s and early 1990s, causing severe disease and declines in the populations of these animals. Herein, we explored the transmission dynamics of the ranavirus(es) present in common frog populations, in the context of a simple susceptible-infected (SI) model, using parameters derived from the literature. We explored the effects of disease-induced population decline on the dynamics of the ranavirus. We then extended the model to consider the infection dynamics in populations exposed to both ulcerative

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