The Species Are Declining Around The World

Researchers are currently trying to gain knowledge on the extent of the problem; how the parasite works, what species can be infected, and once infected, what species experience the least amount of symptoms. They believe that by infecting native tree frogs with this parasite, they may be able to increase the amount of parasites while decreasing the amount of toads. L.Pizzatto and R. Shine (2011) had three assumptions. “(1) The parasite has no detrimental effect on the frogs; (2) the frogs are capable of maintaining a lungworm infection long term; and (3) infective larvae passed in the frog’s faeces are capable of infecting toads and reducing their viability.” (p.546)

Nowhere near a plethora of evolution has adorned the history of the poison dart frog, yet the evolutionary history will fascinate one. The toxic amphibians are beautifully constructed creatures, their magnificent colors, the highly poisonous oil on their skin, and their hasty, yet graceful, movements. But where did it all begin? It began with the ancestor of the poison dart frog, the primitive frogamander.

          As water pollution increases and water quality declines so do the hellbender populations. The large amphibians breath entire through their skin, and like any amphibian, can absorb nearly anything through it. Chemical runoff from pesticides and herbicides, and siltation from nearby

There is a deadly fungus called Batrachochytrium dendrobatidis, Bd for short, that has been wiping out populations of frogs all across the world. Bd has caused dozens of extensions over the past four decades and leaving behind very few survivors. Also in the 1980s the frogs faced a similar problem with this chyrid fungus that wiped out four frog species. However, there are two frogs, the whistling tree frogs and the alpine tree frog, that are doing better than scientists predicted.

Our results shows that are high percentage of people who actually believed the misconception, which human can get warts by touching frogs. We would inform our audience to correct their misconception by providing the evidences to explain the reason in detail that I listed below. This might be shock to many people who believed in it, but it shouldn’t affect people’s life that much. Because this misconception will only cause people to keep away from frogs, which is not a bad thing from the view of health consideration, because for most of the wild frogs, they could carry bacteria, parasites, and diseases and absolutely people want to keep away with. They might also become very upset since I declare the conclusion for saying it is a misconception,

Frogs have been living on this planet for millions of years, and over time, they have evolved into diverse organisms on earth. Today, however, all their adaptions and survival strategies are failing them. Current discoveries are upsetting and show that more than a third of all amphibians, most of which are anurans, have already been lost and more are dying out each day. Habitat loss, pollution, invasive species, and a growing human population have set the stage for their diminished numbers. But now, a currently unstoppable fungus has been recognized as the major cause. When a whole group of a certain type of organism starts to vanish then we should be concerned. Amphibians play an important role in the food tree of life as top insectivores

revealed the existence of abundant amount of microsporidia in the bloodstream of H.axyridis under light microscope and again confirmed using electron microscope. Once microsporidia enters the bloodstream, it undergoes RNA transcription inside the cell. But in H.axyridis it is in inactive state due to absence of gene transcription factor and doesn’t cause any harm in them perhaps it has established immunity towards them. This forms a shield for H.axyridis eggs as well as larvae but when ingested by native ladybird species i.e. Coccinella beetles leads to death. Amplification of microsporidia shows that its RNA matches closely with Nosema thomsoni. This is present in all H.axyridis by vertical

This worldwide distribution of Tinea infection is mainly due to the diversity of habitats of dermatophytic fungi as well as their relatively easy dissemination through the produced arthroconidia (Ameen, 2010). When their habitat is considered, all Dermatophytes can be placed in three distinct groups called; “Geophilic dermatophytes”, “Zoophilic Dermatophytes” and “Anthropophilic dermatophytes”. Geophilic ones are generally living in soil and act as occasional pathogens of animals and humans while zoophilic ones are natural parasites of animals. But they can be transferred to humans and can cause infections. Arthropophilic dermatophytes are inherently human pathogens and commonly transmit from one person to another (Murray, Rosenthal & Michael,

Our planet is currently suffering its Sixth Great Extinction, a time in which a various species of organisms are disappearing at an unprecedented rate (Collins and Crump xv). The most rapidly disappearing groups of organisms are amphibians, and over 200 of these species have been brought to extinction since the year of 1970 (Save the Frogs). One of the largest causes of their rapid declines is the spread of the lethal disease chytridiomycosis, a fungal disease largely spread by humans (Whittaker and Vredenburg). Frogs and other amphibians are dying from this chytridiomycosis because of our selfishly taking them from the wild to an assortment of distant locations simply for the pet trade, food trade, and dissections, which are all unnecessary to economies (Kriger and Hero 1). In order to conserve the over 2000 amphibian species in danger, the ecosystems they support, and humans as well, we must prevent the lethal

This laconic article, “Frogs With a Venomous Head Butt”, written by Sindya N. Bhanoo, is about the discovery of two venomous frog species that researchers made. The two species of frogs, Corythomantis greeningi and Aparasphenodon brunoi, also known as Greening's Frog and Bruno's casque-headed frog, are venomous frogs. While this did not surprise researchers, it was the method of delivering the poison that did. These two species of frogs deliver potent toxins through bony spines on their heads.

The skin of amphibians is tremendously thin, as a result of this frogs are extremely sensitive to any subtle changes in the climate. In particular these are temperature, humidity, water quality and airborne diseases this makes them acutely vulnerable to catching these diseases and fungal infections.

The snout-vent-length of an adult O. sylvatica is 27 mm. The length of the head and the length from vent to knee is 8 mm, the length of the the foot is 12 mm and the length from knee to heel is 10mm. O.sylvatica has smooth skin all over its

Strongyloidiasis is a human disease caused by a parasite belonging to a group of soil transmitted helminth. The causative organ for this intestinal infection is Strongyloides stercoralis and S. fuelleborni being the only other species of Strongyloides that infects humans. This species that commonly infects non-human primates can also cause infections in humans (Ashford and Barnish, 1989; Ashford et al., 1992; Zerpa et al., 2014) is thus zoonotic in nature. Furthermore, strongyloidiasis caused by S. fuelleborni has been shown to be associated with a disease called ‘swollen belly syndrome’ in which neonatal infants acquire overwhelming intestinal infections that can also disseminate and cause (Ashford and Barnish, 1989) fatalities in the absence

Coccidians are a diverse group of protozoan parasites within the phylum Apicomplexa and include pathogenic species of significance to animal and human health. They cause the disease coccidiosis. Biomarkers aid in the prediction and diagnosis of diseases. They represent indicators of normal biological processes, pathogenic processes, or pharmacological responses to a therapeutic intervention. The biomarkers for the coccidian parasites detected by the PCR-based approach include; Cryptosporidium spp. (COWP and 18S rRNA gene, 60 KDa

In Biology, we know the term metamorphosis which is the transformation process of animal’s body structure from the immature one to the adult form. This transformation process is done through cell growth and differentiation. This process usually happens in some insect’s life, such as butterfly. But there’s also amphibian, like frogs, which is also do metamorphosis in their life cycle. Frogs have some phases in their life cycle, part of the metamorphosis, which is interesting to be learned.