Amphibian Decline and Sensitivity Factors

The video discusses the decline of amphibian populations globally since the 1980s, highlighting factors such as the Kindred fungus, habitat destruction, and climate change. Amphibians are particularly vulnerable due to their permeable skin and dual life cycle. The video also mentions specific species affected and concludes with a call to action for further learning.

What are the primary causes of amphibian decline discussed in the introduction?

• Climate change and deforestation

• Invasive species and urbanization

• Kindred fungus and habitat destruction

• Overfishing and hunting

Since when have amphibian populations been declining globally?

• 1980s

• 1990s

• 2000s

• 1970s

What percentage of amphibian species were found to be threatened in a 2004 study?

• 50%

• 32%

• 25%

• 40%

Which of the following is NOT a secondary cause of amphibian decline?

• Overpopulation

• Exploitation

• Pollution

• Pesticide use

How does the amphibian life cycle make them sensitive to environmental changes?

• They have a single-stage life cycle

• They are only terrestrial

• They are only aquatic

• They have both aquatic and terrestrial phases

What characteristic of amphibian skin increases their susceptibility to toxins?

• Waterproof

• Highly permeable

• Scaly and dry

• Thick and rough

Which environmental factor can harm amphibian eggs?

• Low temperatures

• High salinity

• Decreased oxygen levels

• Increased UVB rays

Which amphibian is known to have sensitive skin and low adaptability?

• Lemur leaf frog

• Kahanzi spray toad

• Panamanian golden frog

• Wyoming toad

What is the status of the Panamanian golden frogs in the wild?

• Extinct

• Endangered

• Thriving

• Vulnerable

What is the main cause of population decline in Panamanian golden frogs?

• Overfishing

• Habitat destruction

• Kindred fungus

• Climate change