Find that nest!

You’ve got to check out this game:  http://nightjar.exeter.ac.uk/story/nightjar_game

Screen Shot 2014-03-16 at 3.08.08 PM

Scientists from the University of Exeter are trying to understand camouflage. Specifically, they want to understand how camouflage helps protect animals from being eaten for dinner, and they’re doing this by studying ground nesting birds in South Africa & Zambia.

Like Snapshot Serengeti, these guys use camera traps too, to figure out whose munching on birds and their nests. Unlike Snapshot Serengeti, however, they aren’t asking for help IDing the photos: instead, they’re asking for help figuring out how predators see, and how different types of camouflage work better or worse against predators with different types of vision.

Humans have trichromatic vision, meaning we have three different types of receptors (light sensitive cells in the eye) that can process color: red (longwave), green (mediumwave), and blue (shortwave). Some animals only have two receptor types and can only see one or two colors, whereas other animals have four, allowing them to see wavelengths such as infrared or ultraviolet that are invisible to people.  Thus, what camouflages eggs against one predator might not work so well against another predator.

What these researchers have done is create a game that mimics the vision of other predators. So you get to see the world through the eyes of either a genet cat (with dichromatic vision) or a vervet monkey (with trichromatic vision), and “hunt” for birds or their nests in a series of pictures. This helps scientists understand how perception changes among different animals, and how camouflage works against different perception types.

So go check it out! But don’t forget to come back and then help us classify Season 7! We’ll announce its debut on the blog soon!

 

Advertisements

Tags: ,

About ali swanson

I'm an ecologist studying how large carnivores coexist. I spend way too much of my time trying to stop hyenas and elephants from munching my camera traps!

One response to “Find that nest!”

  1. Joy Braun says :

    If I had to eat the eggs, I might be in a bit of trouble. If I had to eat the nightjars, I’d be ok, so long as the background was light, or med-light. When the background gets dark, I would be hungry! But now that I think of it, that is what happened with the eggs. You know I hate driving in the dark, too. I just don’t see well and headlights blind me. Maybe it is an age thing. I turn the big 60 this year.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: