blue spotted salamander

by julierussell
Last updated 5 months ago

Discipline:
Science
Subject:
Life Science

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blue spotted salamander

# 3 Ecosystem & Habitat Habitat: Forested areas, with fallen trees that retain water making it a moist environment, and a water source such as a lake or pond nearby for laying eggs.Food Web: Salamanders are secondary consumers due to their diet of small insects. They are also prey to other larger consumers.Adaptations: Salamanders have began to crossbreed and inbreed due to the small area left of their habitat, and the small population left there. This has led to genetic issues within the population. Change of ecosystem: Agricultural and urban growth, as well as ponds being silted in has led to the loss of the salamander's habitat. This has in turn lead to their endangered status in the state of Iowa.Protections: Limiting logging, and deforestation, buldozing current ponds to remove silt, and creating shallow ponds that cannot support fish life.

Blue Spotted Salamander

Warning predators

# 1Characteristics

ResourcesInformation (nd). Blue Spotted Salamander. Retrieved July 3, 2011, from http://salamandersinniagara.comoj.com/blue_spotted/blue_spotted_overview.htm Eastman J., Spradling T., Demastes J. (2007). Conservation genetic assessment of the blue-spotted salamander in Iowa [Abstract]. The American Midland Naturalist, 158(1). Humphrey, R., Fankhauser, G. (1949). Three Generations of Polyploids in Ambystomid Salamanders [Abstract]. Journal of Heridity, 40(1). Leclere, J. (2011). Blue Spotted Salamander Ambystoma laterale. herpnet.net. Retrieved June 27, 2011, from http://herpnet.net/Iowa-Herpetology/index.php?option=com_content&task=view&id=32&Itemid=26Pictures Egan, Scott (nd). Blue Spotted Salamander. Retrieved July 3, 2011, from http://salamandersinniagara.comoj.com/blue_spotted/blue_spotted_overview.htm Leclere, J. (2011). Blue Spotted Salamander Ambystoma laterale. herpnet.net. Retrieved June 27, 2011, from http://herpnet.net/Iowa-Herpetology/index.php?option=com_content&task=view&id=32&Itemid=26Videos Leclere, J. [Video]. (2011). Blue Spotted Salamander Ambystoma laterale. Retrieved from http://herpnet.net/Iowa-Herpetology/index.php?option=com_content&task=view&id=32&Itemid=26 RMBolton [Video]. (2008). Blue Spotted Salamander Predator Defense. Retrieved from http://www.youtube.com/watch?v=FHxpAj2MLgw.

#4 Controversial Issues The areas in which the salamanders live in Iowa is a growing region not only in agriculture but in urban development. With the building of houses and planting crops on this prime area, the salamanders have been inadvertently surrounded into two areas. Since this area is good development land, developers want to use it to make more profit, this would in turn destroy the only two remaining areas in which the salamanders live in Iowa. The controversial issue then becomes profit versus protection.This area is also good for farming and could be

#2 Genetic Issues There are only 2 populations found in Iowa.The salamanders are being trapped in their location. One population is surrounded by urban areas, and the other population is surrounded by agricultural areas. Gene pool is not being replenished. Due to how far apart these populations are from each other, it is not feasible for the salamanders to travel to the other population, and breed with other salamanders.Inbreeding Salamanders are breeding with others from the same gene pool or “family structure”. This has the same effect if humans were breed within their Crossbreeding The male Jefferson Salamander will breed with the female Blue Spotted. The offspring that results is a triploid female (an extra set of chromosomes) This can result in the offspring being sterile. If it is not sterile, it will breed with a pure Jefferson salamander and create offspring that are also all female. Why is this an issue? Because it can produce genetic abnomalities, and because the pure lines of each salamander are being destroyed.

Salamander Eggs


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