Decline in amphibian populations

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  • Road Salt Research Paper

    Many studies showed that road salt has negative effects on the survival rate of amphibian populations. According to Karraker, N. E., Gibbs, J. P., Vonesh, J. R., they found that large quantities of road salt decreased survival in both Spotted salamanders and Wood frogs. Survival of their embryos also decreased significantly. Amphibians have a lower chance to metamorphose, which is the process of an organism to develop into an adult, causing a lower a survival rate. Sanzo, D., and Hecnar, S. J. (2005, September 12), provided additional evidence of road salt’s effect on amphibian population decline. Their data produced r values of −0.28 and 0.66, proving that amphibian specie richness was negatively correlated with chloride concentration…

    Words: 723 - Pages: 3
  • Non Utilitarianism Essay

    the risk of exposure of certain pathogens to humans and wildlife populations (Ostfeld, 2000). This age-old tension between the two perspectives is detrimental to the protection of biodiversity and 6 ecosystems. Not only does it divide the conservation movement, but, more importantly, it perpetuates confusion on both sides about the genuine objective and motivation of nature conservation. Other ways biodiversity is affected besides diseases: Human domination of Earth’s ecosystems is markedly…

    Words: 7083 - Pages: 29
  • Blanchard's Cricket Frog Research Paper

    Introduction As humans, we get the opportunity to share and coexist on this planet with some extraordinarily unique and diverse organisms. Of such organisms, reptiles and amphibians are some of the most adaptable organisms on Earth, residing on every continent except bitter cold Antarctica. Here in Minnesota, There are 22 species of amphibians and 31 species of reptiles, ranging from the fast moving salamanders to the slow and nimble turtles. I got the opportunity to further research the…

    Words: 1319 - Pages: 6
  • Summary Of Eating Frogs To Extinction By Ian Warkentin

    The article “Eating Frogs to Extinction” by Ian Warkentin addresses amphibians, particularly frogs, contributes a significant role in the gastronomy of several cultures, thus leading amphibians susceptible to mass extinction. The article begins with a list of factors that is leading to the rising cause of amphibians’ extinction; from environmental degradation to community instability to individual mechanism. These factors include their role as important prey and predators, habitat loss,…

    Words: 701 - Pages: 3
  • The Effects Of Atrazine On Amphibians

    Some of these scientists include Katti et al (2015), Ji et al (2016), and Marcus and Fiumera (2016). Katti et al (2015) showed that agrochemicals, which includes atrazine, have adverse effects on the reproductive systems of amphibians. One of the effects is a reduction in the number of follicles in amphibians, which shows that agrochemicals have a negative impact on the reproduction system of female amphibians (Katti et al, 2015). Unlike Katti et al (2015), Ji et al (2016) was worried about the…

    Words: 1363 - Pages: 6
  • Southern Leopard Frog Essay

    Lithobates Sphenocephalus, commonly known as Southern Leopard Frog are a part of the Anura order of amphibians meaning “without tail,” and in the Ranidae family, also considered to be “true frogs” which are the most widely distributed family occurring on all continents with the exception of Antartica. The average size of Southern Leopard frogs is about 2-3 ½ inches. The Southern Leopard frog is native to the United States in the eastern region, and contains two subspecies currently: R. s.…

    Words: 678 - Pages: 3
  • Earthworm Invasions

    Earthworm invasion in previously earthworm free regions (e.g., glaciated northern part of North America and Europe) has become a conservation threat to rare native species, community, and ecosystems (Gundale 2002; Hale et al. 2006; Nuzzo et al 2009; Maerz et al. 2009; Sutherland et al. 2011; Nuzzo et al. 2015). In 2011, Sunderland and coauthors identified earthworm invasions in previously earthworm free regions as one of the 15 most immerging issues of biodiversity conservation. One of the…

    Words: 762 - Pages: 4
  • Pros And Cons Of Selective Breeding

    Inbreeding does have an obvious genetic consequence. In general, by breeding animals that are in the same family it reduces the numbers of genes available within the collection or population. It is thought that if the animal’s traits are successful after breeding, then it’s considered a good concentration of genes (alleles), and if not, then it is considered negative. The problem of inbreeding over time means that the offspring becomes more and more alike in genetic similarity, which makes…

    Words: 1515 - Pages: 7
  • Importance Of Biodiversity Conservation Essay

    Fota Wildlife Park John Lawlor T00172305 Why is conservation important: Conservation is the protection and maintenance of populations of plants and animals. It requires the protection of ecosystems and the biodiversity in these ecosystems. 'Biological diversity – or biodiversity – is the term given to the variety of life on Earth. It is the variety within and between all species of plants, animals and micro-organisms and the ecosystems within which they live and interact.'(, n.d.)…

    Words: 1969 - Pages: 8
  • Biodiversity Intactness Index Essay

    1. What is the Biodiversity Intactness Index (BII)? (p. 289) a. The Biodiversity Intactness Index (BII) is the average abundance of originally present species across a broad range of species, relative to abundance in an undisturbed habitat. 2. What four pressure variables were investigated? (p. 290) a. The four pressure variables that this paper focused on were land use, land-use intensity, human population density, and proximity to the nearest road. 3. The “average local abundance of…

    Words: 1371 - Pages: 6
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