W F B 3000 Lecture Notes - Lecture 4: Gymnophiona, Fossorial, Internal Fertilization
19 Oct 2017
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Skin is well adhered so is not abraded when digging. Either in mom, in water, in moist soil. Males have a copulatory organ called a phallodeum. In life in cold blood, they eat skin off parents. Rank among the most threatened & endangered group of vertebrates. ~30% (> 1,500 species) of amphibians are threatened with extinction. Us: reduced habitat, development of cities, using resources based on our lifestyles. Enigmatic declines: unexplained declines; many of these are now known to be driven by,, Includes anything that reduces the abundance or quality of resources that amphibians need. Habitat loss is probably the biggest threat to amphibians worldwide, and in the southeastern us. Chytridiomycosis : caused by a type of chytridfungus that acts as a pathogen. Some species carry it without develop the disease. Species that live in high elevation habitats seem most susceptible. But related fungus bsal was just discovered in 2013 a bigger problem for salamanders!
