Turtle Observation and Counting Techniques

The video discusses the phenomenon of turtle arribada, where thousands of turtles gather on beaches. Vanessa Bezzi uses drones to study turtle populations, revealing that many turtles remain unseen underwater. To improve accuracy, she employs underwater cameras, discovering that turtles spend more time submerged than previously thought. Her research highlights the challenges in counting turtles and the importance of new technologies in wildlife studies.

What is the largest estimated number of turtles observed during an 'Arata' event on the beach?

• 100,000

• 600,000

• 200,000

• 400,000

What tool does Vanessa Bezzi use to count turtles from above the sea?

• Helicopter

• Drone

• Satellite

• Hot Air Balloon

How many turtle flights did Vanessa conduct over her year-long study?

• 750

• 250

• 500

• 100

Why is it challenging to count all turtles using a drone?

• The drone's battery life is short

• Turtles spend a lot of time underwater

• Turtles blend with the water

• Turtles are too fast

What type of camera is used to gather underwater data on turtles?

• Smartphone

• DSLR

• Webcam

• Underwater GoPro

What is the maximum weight of an Olive Ridley turtle that Vanessa and her team had to handle?

• 150 lbs

• 100 lbs

• 75 lbs

• 50 lbs

How long can a turtle's underwater dive last, according to Vanessa's findings?

• 35 minutes

• 10 minutes

• 20 minutes

• 28 minutes

What is the maximum time a turtle was observed at the surface in view of the drone?

• 2 minutes

• 2 minutes 30 seconds

• 1 minute 40 seconds

• 1 minute

What percentage of turtles does Vanessa estimate the drone is actually seeing?

• 50%

• 100%

• 177%

• 200%

What surprising realization did Vanessa have about turtles' time spent at the surface?

• They spend hours at the surface

• They are always visible to drones

• They rarely come to the surface

• They spend less time at the surface than expected